{"id":40471,"date":"2025-05-07T10:08:29","date_gmt":"2025-05-07T02:08:29","guid":{"rendered":"https:\/\/zetarmold.com\/?p=40471"},"modified":"2026-05-05T06:24:11","modified_gmt":"2026-05-04T22:24:11","slug":"%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e5%b0%84%e5%87%ba%e9%80%9f%e5%ba%a6-2","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/ja\/%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e5%b0%84%e5%87%ba%e9%80%9f%e5%ba%a6-2\/","title":{"rendered":"\u5c04\u51fa\u6210\u5f62\u306b\u304a\u3051\u308b\u5c04\u51fa\u901f\u5ea6\u3068\u306f\uff1f"},"content":{"rendered":"<p>\u30b2\u30fc\u30c8\u3067\u306e\u901f\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u305b\u3093\u65ad\u5fdc\u529b\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u6eb6\u878d\u6a39\u8102\u304c\u4e71\u6d41\u7684\u306b\u958b\u53e3\u90e8\u3092\u7a81\u304d\u629c\u3051\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002\u3053\u308c\u306f\u901f\u5ea6\u306b\u57fa\u3065\u304f\u6b20\u9665\u4fee\u6b63\u306e\u4e2d\u3067\u6700\u3082\u52b9\u679c\u7684\u306a\u65b9\u6cd5\u306e\u4e00\u3064\u3067\u3059\u3002 <a href=\"https:\/\/zetarmold.com\/ja\/injection-molding-complete-guide\/\">\u5c04\u51fa\u6210\u5f62<\/a> \u6a5f\u68b0\u3002\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308c\u3070\u3001\u30b5\u30a4\u30af\u30eb\u3054\u3068\u306b\u5149\u6ca2\u304c\u3042\u308a\u3001\u5bf8\u6cd5\u5b89\u5b9a\u6027\u306e\u9ad8\u3044\u90e8\u54c1\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u9593\u9055\u3048\u308c\u3070\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u3001\u30b7\u30e7\u30fc\u30c8\u30b7\u30e7\u30c3\u30c8\u3001\u30b7\u30f3\u30af\u30de\u30fc\u30af\u3001\u53cd\u308a\u3092\u6c38\u9060\u306b\u8ffd\u3044\u304b\u3051\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u79c1\u305f\u3061\u306e\u4e0a\u6d77\u5de5\u5834\u3067\u306f\u300190\u30c8\u30f3\u304b\u30891850\u30c8\u30f3\u307e\u3067\u306e\u6a5f\u68b0\u306720\u5e74\u4ee5\u4e0a\u306b\u308f\u305f\u308a\u901f\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u8abf\u6574\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u30ac\u30a4\u30c9\u306f\u3001\u5b9f\u969b\u306b\u91cd\u8981\u306a\u3053\u3068\u3092\u51dd\u7e2e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"callout-key\" style=\"background:#f0f7ff; border-left:4px solid #2563eb; padding:1em 1.2em; border-radius:6px; margin:1.5em 0;\">\n<strong>\u8981\u70b9<\/strong><\/p>\n<ul>\n<li>Injection speed directly controls melt flow rate, cavity pressure, and part quality<\/li>\n<li>Multi-stage speed profiles outperform single-speed filling for most parts<\/li>\n<li>Thin-walled parts demand faster speeds; thick-walled parts need slow-fast-slow curves<\/li>\n<li>Speed adjustment can solve flash, short shots, jetting, and burn marks<\/li>\n<li>Material viscosity and gate design dictate your starting speed range<\/li>\n<\/ul>\n<\/div>\n<h2>What Is Injection Speed in Injection Molding?<\/h2>\n<p>\u5c04\u51fa\u901f\u5ea6\u306f\u3001\u30b9\u30af\u30ea\u30e5\u30fc\u306e\u901f\u5ea6\u3067\u3042\u308a\u3001\u6eb6\u878d\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u3092\u91d1\u578b\u30ad\u30e3\u30d3\u30c6\u30a3\u306b\u5145\u586b\u3057\u307e\u3059\u3002\u901a\u5e38\u3001mm\/s\u307e\u305f\u306fcm3\/s\u3067\u8868\u3055\u308c\u3001\u6eb6\u878d\u6e29\u5ea6\u3001\u91d1\u578b\u6e29\u5ea6\u3001\u30af\u30e9\u30f3\u30d7\u529b\u304c\u5b89\u5b9a\u3057\u305f\u5f8c\u306e\u6700\u521d\u306e\u8a2d\u5b9a\u9805\u76ee\u3068\u306a\u308a\u307e\u3059\u3002\u30d9\u30f3\u30c0\u30fc\u3092\u6bd4\u8f03\u3057\u305f\u308a\u3001\u8abf\u9054\u3092\u8a08\u753b\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u5f53\u793e\u306e <a href=\"https:\/\/zetarmold.com\/ja\/injection-molding-supplier-sourcing-guide\/\">injection molding supplier sourcing guide<\/a> RFQ\u6e96\u5099\u3068\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u30c1\u30a7\u30c3\u30af\u3092\u30ab\u30d0\u30fc\u3057\u307e\u3059\u3002<\/p>\n<p>\u5c04\u51fa\u901f\u5ea6\u306f\u3001\u30b9\u30af\u30ea\u30e5\u30fc\u304c\u6eb6\u878d\u30dd\u30ea\u30de\u30fc\u3092\u91d1\u578b\u30ad\u30e3\u30d3\u30c6\u30a3\u306b\u62bc\u3057\u8fbc\u3080\u901f\u5ea6\u3067\u3042\u308a\u3001mm\/s\u307e\u305f\u306fcm\/s\u3067\u6e2c\u5b9a\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u6750\u6599\u304c\u56fa\u5316\u3057\u59cb\u3081\u308b\u524d\u306b\u30ad\u30e3\u30d3\u30c6\u30a3\u304c\u5145\u586b\u3055\u308c\u308b\u901f\u3055\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u6cb9\u5727\u6210\u5f62\u6a5f\u3067\u306f\u3001\u5c04\u51fa\u901f\u5ea6\u306f\u5c04\u51fa\u30b7\u30ea\u30f3\u30c0\u30fc\u3078\u306e\u4f5c\u52d5\u6cb9\u306e\u6d41\u91cf\u306b\u3088\u3063\u3066\u5236\u5fa1\u3055\u308c\u307e\u3059\u3002\u30aa\u30fc\u30eb\u96fb\u52d5\u6210\u5f62\u6a5f\u3067\u306f\u3001\u30b5\u30fc\u30dc\u30e2\u30fc\u30bf\u30fc\u304c\u30b9\u30af\u30ea\u30e5\u30fc\u3092\u99c6\u52d5\u3057\u3001\u901f\u5ea6\u306f\u30c7\u30b8\u30bf\u30eb\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u76f4\u63a5\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>The relationship between speed and part quality is not linear. Below a certain threshold, the melt cools too much during filling, creating weak weld lines, flow marks, and uneven density. Above another threshold, the melt enters the cavity turbulently, trapping air, causing jetting, and generating excessive shear heat that can degrade the polymer. The sweet spot \u2014 and it is different for every mold and material \u2014 is where the melt front advances steadily, fills uniformly, and packs out completely.<\/p>\n<p>In practice, injection speed interacts with injection pressure, melt temperature, and mold temperature. You cannot optimize speed in isolation. But speed is usually the first parameter to tune after you have set barrel temperatures and clamp force, because its effects on surface appearance and dimensional consistency are immediate and obvious.<\/p>\n<div class=\"factory-insight\" style=\"background:#f0f7ff;border-left:4px solid #0066cc;padding:12px 16px;margin:1.5em 0;\"><strong>\ud83c\udfed ZetarMold Factory Insight<\/strong><br \/>In our Shanghai factory, we run 47 injection molding machines ranging from 90T to 1850T. Across thousands of production runs, we have found that injection speed is the single most impactful parameter to get right during initial process setup \u2014 more so than holding pressure or cooling time for most parts.<\/div>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-injection-molding-machine-diagram.webp\" alt=\"\u5c04\u51fa\u6210\u5f62\u6a5f\u306e\u901f\u5ea6\u5236\u5fa1\u56f3\" class=\"wp-image-51528 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-injection-molding-machine-diagram.webp 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-injection-molding-machine-diagram-300x171.webp 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-injection-molding-machine-diagram-768x439.webp 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-injection-molding-machine-diagram-18x10.webp 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-injection-molding-machine-diagram-600x343.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">\u5c04\u51fa\u6210\u5f62\u6a5f\u306e\u901f\u5ea6\u5236\u5fa1\u56f3<\/figcaption><\/figure>\n<h2>Why Does Injection Speed Matter for Part Quality?<\/h2>\n<p>\u5c04\u51fa\u901f\u5ea6\u306f\u6210\u5f62\u90e8\u54c1\u306e\u54c1\u8cea\u3092\u5236\u5fa1\u3059\u308b\u4e3b\u8981\u306a\u8981\u7d20\u3067\u3059\u3002\u305d\u308c\u306f\u30e1\u30eb\u30c8\u30d5\u30ed\u30f3\u30c8\u901f\u5ea6\u3001\u30ad\u30e3\u30d3\u30c6\u30a3\u5185\u5727\u529b\u3001\u51b7\u5374\u5747\u4e00\u6027\u3092\u652f\u914d\u3057\u307e\u3059\u3002\u30e1\u30eb\u30c8\u304c\u9045\u3059\u304e\u3066\u6d41\u5165\u3059\u308b\u3068\u3001\u30dd\u30ea\u30de\u30fc\u306f\u30ad\u30e3\u30d3\u30c6\u30a3\u304c\u6e80\u305f\u3055\u308c\u308b\u524d\u306b\u51b7\u5374\u3055\u308c\u3001\u30b3\u30fc\u30eb\u30c9\u30b9\u30e9\u30b0\u3001\u5f31\u3044\u30cb\u30c3\u30c8\u30e9\u30a4\u30f3\u3001\u4e0d\u5747\u4e00\u306a\u5bc6\u5ea6\u3001\u4e0d\u5b8c\u5168\u306a\u30d1\u30c3\u30ad\u30f3\u30b0\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u901f\u3059\u304e\u3066\u6d41\u5165\u3059\u308b\u3068\u3001\u30b8\u30a7\u30c3\u30c6\u30a3\u30f3\u30b0\u3001\u30a8\u30a2\u30c8\u30e9\u30c3\u30d7\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u3001\u713c\u3051\u8de1\u3001\u904e\u5270\u306a\u305b\u3093\u65ad\u71b1\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>When the melt enters too fast, you get a different set of problems: jetting where the melt shoots through the gate like a fire hose instead of spreading in a smooth front, air traps from turbulent flow which cause burns and voids, flash at the parting line from the sudden pressure spike, and surface blemishes like silver streaks from moisture or gas.<\/p>\n<p>The ideal speed keeps the melt front velocity constant throughout filling. Since the cross-sectional area of the cavity changes along the flow path, the screw speed needs to change too \u2014 which is exactly why <a href=\"https:\/\/rjginc.com\/the-8-key-parameters-in-injection-molding-process-optimization-to-avoid-defects\/\">multi-stage profiling<\/a><sup id=\"fnref1:1\"><a href=\"#fn:1\" class=\"footnote-ref\">1<\/a><\/sup> exists. Each phase of filling demands a different speed to keep the melt front advancing at a consistent rate.<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>\u300c\u8584\u8089\u90e8\u54c1\u306f\u4e00\u822c\u306b\u3001\u539a\u8089\u90e8\u54c1\u3088\u308a\u3082\u9ad8\u3044\u5c04\u51fa\u901f\u5ea6\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u300d<\/b><span class=\"claim-true-or-false\">\u771f<\/span><\/p>\n<p class=\"claim-explanation\">Thin walls solidify in milliseconds. The melt must fill the entire cavity before the flow channel freezes off, requiring faster injection speeds \u2014 often 200 mm\/s or higher for wall thicknesses under 0.5 mm.<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>\u300c\u5c04\u51fa\u901f\u5ea6\u3068\u5c04\u51fa\u5727\u529b\u306f\u5b8c\u5168\u306b\u72ec\u7acb\u3057\u305f\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u3059\u3002\u300d<\/b><span class=\"claim-true-or-false\">\u507d<\/span><\/p>\n<p class=\"claim-explanation\">While machine settings are separate, increasing injection speed typically raises cavity pressure due to higher volumetric flow rate and increased shear heating.<\/p>\n<\/div>\n<h2>What Factors Affect Injection Speed?<\/h2>\n<p>\u5c04\u51fa\u901f\u5ea6\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u4e3b\u306a\u8981\u56e0\u306f\u3001\u6750\u6599\u7c98\u5ea6\u3001\u8089\u539a\u3001\u30b2\u30fc\u30c8\u8a2d\u8a08\u3001\u6d41\u52d5\u9577\u3001\u304a\u3088\u3073\u6210\u5f62\u6a5f\u80fd\u529b\u3067\u3059\u3002PP\u3084PA\u306a\u3069\u306e\u4f4e\u7c98\u5ea6\u6750\u6599\u306f\u4e2d\u7a0b\u5ea6\u306e\u901f\u5ea6\u3067\u5145\u586b\u3067\u304d\u307e\u3059\u304c\u3001PC\u3001PMMA\u3001\u30ac\u30e9\u30b9\u5145\u586b\u6750\u6599\u306f\u305b\u3093\u65ad\u640d\u50b7\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u53b3\u5bc6\u306a\u5236\u5fa1\u304c\u5fc5\u8981\u3067\u3059\u3002\u8584\u8089\u90e8\u306f\u51cd\u7d50\u524d\u306b\u9ad8\u901f\u5145\u586b\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001\u539a\u8089\u90e8\u306f\u901a\u5e38\u3001\u4f4e\u901f-\u9ad8\u901f-\u4f4e\u901f\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>Wall thickness plays a decisive role. Thin-walled parts under 1 mm require high speed to fill before freeze-off. Thick-walled parts over 3 mm benefit from a slow-fast-slow profile to minimize sink marks and voids while still achieving reasonable cycle times. Gate type and size also matter \u2014 a pinpoint gate creates high shear at the entrance, so speed through the gate needs to be controlled, while a large edge gate can tolerate higher speeds.<\/p>\n<p>Flow length is another key factor. Long flow paths require higher speed to maintain melt temperature. If the polymer cools mid-fill, you get short shots. A general rule: for every 100 mm of flow length, expect to increase speed by 10 to 20 mm\/s to compensate for heat loss. Mold temperature also plays a role \u2014 a hotter mold allows slower speeds because the melt stays fluid longer.<\/p>\n<p>Finally, machine capability sets the upper bound. The maximum injection speed depends on the machine hydraulic flow rate or servo motor RPM. A machine rated for 300 mm\/s maximum may only deliver stable speed control between 20 and 250 mm\/s. Understanding these factors together is essential for selecting the right <a href=\"https:\/\/en.wikipedia.org\/wiki\/Injection_moulding\">injection speed definition<\/a><sup id=\"fnref1:2\"><a href=\"#fn:2\" class=\"footnote-ref\">2<\/a><\/sup> for your specific application.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/12\/optimizing-cycle-time-chart.webp\" alt=\"\u5c04\u51fa\u6210\u5f62\u30d7\u30ed\u30bb\u30b9\u3068\u30b5\u30a4\u30af\u30eb\u30bf\u30a4\u30e0\u306e\u6700\u9069\u5316\" class=\"wp-image-51715 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/12\/optimizing-cycle-time-chart.webp 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/12\/optimizing-cycle-time-chart-300x171.webp 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/12\/optimizing-cycle-time-chart-768x439.webp 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/12\/optimizing-cycle-time-chart-18x10.webp 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/12\/optimizing-cycle-time-chart-600x343.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">\u5c04\u51fa\u901f\u5ea6\u306e\u6700\u9069\u5316\u306f\u91cd\u8981\u306a<\/figcaption><\/figure>\n<h2>How Do You Control Injection Speed?<\/h2>\n<p>\u5c04\u51fa\u901f\u5ea6\u306f\u3001\u6cb9\u5727\u30d0\u30eb\u30d6\u306e\u6d41\u91cf\u5236\u5fa1\u3001\u9589\u30eb\u30fc\u30d7\u30b5\u30fc\u30dc\u901f\u5ea6\u5236\u5fa1\u3001\u307e\u305f\u306f\u30b5\u30fc\u30dc\u96fb\u52d5\u30b9\u30af\u30ea\u30e5\u30fc\u99c6\u52d5\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u3059\u308b\u3053\u3068\u3067\u5236\u5fa1\u3057\u307e\u3059\u3002\u6bd4\u4f8b\u5236\u5fa1\u30d0\u30eb\u30d6\u306f\u5c04\u51fa\u30b7\u30ea\u30f3\u30c0\u30fc\u3078\u306e\u6cb9\u6d41\u91cf\u3092\u8abf\u6574\u3057\u3001\u30b5\u30fc\u30dc\u30b7\u30b9\u30c6\u30e0\u306f\u5b9f\u969b\u306e\u30b9\u30af\u30ea\u30e5\u30fc\u4f4d\u7f6e\u3068\u901f\u5ea6\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u8a08\u6e2c\u3057\u307e\u3059\u3002\u7cbe\u5bc6\u90e8\u54c1\u306e\u5834\u5408\u3001\u9589\u30eb\u30fc\u30d7\u5236\u5fa1\u306f\u958b\u30eb\u30fc\u30d7\u901f\u5ea6\u8a2d\u5b9a\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u512a\u308c\u305f\u518d\u73fe\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<p>Closed-loop servo control uses a high-resolution encoder on the screw to measure actual position and speed in real time. The controller adjusts the servo motor or proportional valve to match the setpoint. This gives plus or minus 0.1 percent speed accuracy and is essential for precision molding \u2014 especially medical, optical, and electronic parts where shot-to-shot consistency directly affects part quality.<\/p>\n<p>Servo-electric direct drive eliminates hydraulics entirely. A ball-screw driven by a servo motor moves the injection unit. Speed control is inherently digital, with response times under 10 ms. These machines offer the most consistent shot-to-shot speed and the cleanest speed transitions between stages.<\/p>\n<p>At the process level, most modern controllers let you program 5 to 10 speed stages. Each stage specifies a screw position and a target speed. The machine transitions between stages automatically as the screw advances, allowing you to slow down at the gate, speed up through the cavity, and slow down again at the end of fill \u2014 all in a single shot.<\/p>\n<div class=\"factory-insight\" style=\"background:#f0f7ff;border-left:4px solid #0066cc;padding:12px 16px;margin:1.5em 0;\"><strong>\ud83c\udfed ZetarMold Factory Insight<\/strong><br \/>Across our 47 machines from 90T to 1850T, we use closed-loop speed control on every press. The difference between open-loop and closed-loop speed control is most visible on tight-tolerance parts \u2014 we have seen dimensional variation drop by 40 to 60 percent simply by switching to closed-loop injection speed profiling.<\/div>\n<h2>What Is Multi-Stage Injection Speed Profiling?<\/h2>\n<p>Multi-stage profiling is the practice of changing injection speed at specific points during the filling phase. Instead of running the screw at one constant speed, you program a speed curve that adapts to what is happening inside the mold. A typical 5-stage profile breaks the filling process into distinct phases, each with its own speed target.<\/p>\n<p>Stage 1 is runner fill at high speed, typically 80 to 100 percent of maximum. The runner has no cosmetic or structural requirements, so speed is prioritized to minimize heat loss. Stage 2 is gate entry at slow speed, dropping to 20 to 40 percent as the melt passes through the gate. This prevents jetting, reduces shear stress, and avoids gate blush. For pinpoint gates on cosmetic parts, this stage is critical.<\/p>\n<p>Stage 3 is cavity fill at fast speed, ramping back up to 60 to 90 percent once the melt has passed the gate and is spreading through the cavity. This stage typically fills to 70 to 85 percent of the part by volume. Stage 4 is the transition phase at medium speed, reducing to 30 to 50 percent as the cavity approaches full, creating a smooth transition to the packing phase and preventing overpacking near the gate.<\/p>\n<p>Stage 5 is end of fill at slow speed, dropping to 10 to 20 percent for the final filling. This prevents flash, allows trapped air to escape through vents, and creates a clean transition to holding pressure. The exact speed percentages and position switchover points depend on the mold and material. Finding the optimal profile is part of the <a href=\"https:\/\/rjginc.com\/training\/\">scientific molding methodology<\/a><sup id=\"fnref1:3\"><a href=\"#fn:3\" class=\"footnote-ref\">3<\/a><\/sup> where you run short shots at different speeds, measure the fill pattern, and iterate.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples.webp\" alt=\"Common plastic molding defects visual guide\" class=\"wp-image-51583 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples.webp 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples-300x171.webp 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples-768x439.webp 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples-18x10.webp 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples-600x343.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">\u4e0d\u9069\u5207\u306a\u901f\u5ea6\u306b\u3088\u308b\u4e00\u822c\u7684\u306a\u6b20\u9665<\/figcaption><\/figure>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>\u300c\u30b2\u30fc\u30c8\u4ed8\u8fd1\u3067\u5c04\u51fa\u901f\u5ea6\u3092\u9045\u304f\u3059\u308b\u3068\u3001\u30b8\u30a7\u30c3\u30c6\u30a3\u30f3\u30b0\u3084\u30b2\u30fc\u30c8\u30d6\u30e9\u30c3\u30b7\u30e5\u306e\u6b20\u9665\u3092\u8efd\u6e1b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u300d<\/b><span class=\"claim-true-or-false\">\u771f<\/span><\/p>\n<p class=\"claim-explanation\">Reducing speed at the gate minimizes shear stress and prevents the melt from shooting through the opening turbulently. This is one of the most effective speed-based defect fixes.<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>\u300c\u5145\u586b\u30d5\u30a7\u30fc\u30ba\u5168\u4f53\u3092\u901a\u3058\u3066\u5358\u4e00\u306e\u4e00\u5b9a\u5c04\u51fa\u901f\u5ea6\u3092\u7dad\u6301\u3059\u308b\u3068\u3001\u6700\u826f\u306e\u7d50\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\u300d<\/b><span class=\"claim-true-or-false\">\u507d<\/span><\/p>\n<p class=\"claim-explanation\">Multi-stage speed profiling consistently outperforms single-speed filling. Constant speed causes jetting at the gate, flash at end of fill, or both \u2014 depending on the chosen speed.<\/p>\n<\/div>\n<h2>What Problems Can Speed Adjustment Solve?<\/h2>\n<p>Injection speed is often the first parameter to adjust when troubleshooting defects. Flash is one of the most common issues \u2014 when the melt overflows the parting line, it is usually because the cavity was overpacked at the end of fill. The solution is to reduce speed in the final stage, allowing the machine to transition smoothly to holding pressure without a pressure spike.<\/p>\n<p>Short shots occur when the part is not filling completely because the melt is freezing before it reaches the end of the cavity. The solution is to increase speed during the cavity fill stage, which keeps the melt hotter and flowing further. Jetting produces worm-like lines on the part surface near the gate when the melt shoots through the gate in a narrow stream instead of spreading in a fan pattern. Slowing down at the gate entry gives the melt time to establish a proper flow front.<\/p>\n<p>Burn marks appear as dark streaks or charred areas, usually near the end of fill or at blind pockets, caused by compressed superheated air. The solution is to slow down the end-of-fill speed to give air time to escape through vents before the cavity seals. Sink marks are localized depressions on the part surface above thick sections or ribs, and while sink is primarily a packing issue, faster injection speed helps by delivering hotter material to thick sections.<\/p>\n<p>Flow lines are visible ripples or waviness on the part surface caused by inconsistent melt front velocity. The solution is to adjust the speed profile to maintain a steady melt front speed, typically by increasing speed as the flow path widens. Understanding material viscosity curves helps predict which speeds will produce the cleanest flow for each polymer type.<\/p>\n<h2>How Do You Optimize Injection Speed for Different Materials?<\/h2>\n<p>\u6750\u6599\u56fa\u6709\u306e\u901f\u5ea6\u6700\u9069\u5316\u306f\u3001\u5404\u901f\u5ea6\u6bb5\u968e\u3092\u30dd\u30ea\u30de\u30fc\u306e\u7c98\u5ea6\u3001\u8089\u539a\u3001\u71b1\u611f\u53d7\u6027\u306b\u5408\u308f\u305b\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u30dd\u30ea\u30de\u30fc\u306b\u306f\u3001\u901f\u5ea6\u3068\u305b\u3093\u65ad\u306b\u3069\u306e\u3088\u3046\u306b\u53cd\u5fdc\u3059\u308b\u304b\u3092\u6c7a\u5b9a\u3059\u308b\u7c98\u5ea6\u66f2\u7dda\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u8868\u306f\u4e00\u822c\u7684\u306a\u6750\u6599\u306e\u958b\u59cb\u7bc4\u56f2\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u30d7\u30ed\u30bb\u30b9\u8a2d\u5b9a\u6642\u306e\u30b7\u30e7\u30fc\u30c8\u30b7\u30e7\u30c3\u30c8\u8a66\u9a13\u3068\u30ad\u30e3\u30d3\u30c6\u30a3\u5185\u5727\u30c7\u30fc\u30bf\u3092\u7528\u3044\u3066\u8abf\u6574\u3057\u307e\u3059\u3002<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/plastic-resin-pellets-800x457-1.jpg\" alt=\"\u5c04\u51fa\u6210\u5f62\u306e\u901f\u5ea6\u8a2d\u5b9a\u7528\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u6a39\u8102\u30da\u30ec\u30c3\u30c8\" class=\"wp-image-53235 size-full\" style=\"max-width:100%;height:auto;\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">\u6750\u6599\u901f\u5ea6\u8a2d\u5b9a<\/figcaption><\/figure>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\u7d20\u6750<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Typical Speed Range<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\u7a3c\u50cd\u4e2d\u306e\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u5c04\u51fa\u6210\u5f62\u6a5f\u304c\u90e8\u54c1\u3092\u751f\u7523\u4e2d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PP\uff08\u30dd\u30ea\u30d7\u30ed\u30d4\u30ec\u30f3\uff09<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">50-150 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Low viscosity; fast fill, moderate shear<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PE\uff08\u30dd\u30ea\u30a8\u30c1\u30ec\u30f3\uff09<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">50-120 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Similar to PP; watch for warpage in thin walls<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PA6\/PA66 (Nylon)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">60-180 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Needs fast fill to prevent premature freeze<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">ABS<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">40-120 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Medium viscosity; speed affects gloss uniformity<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PC\uff08\u30dd\u30ea\u30ab\u30fc\u30dc\u30cd\u30fc\u30c8\uff09<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">30-100 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">High viscosity; shear-sensitive; avoid spikes at gate<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PMMA (Acrylic)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">30-80 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Very high viscosity; optical clarity demands steady flow<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">POM (Acetal)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">50-150 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Fast crystallization; needs quick fill<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PBT<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">60-140 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Crystalline; speed affects crystallinity and shrinkage<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Glass-filled (PA+GF)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">80-200 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">High speed needed; watch fiber orientation<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">TPU<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">30-80 mm\/s<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Low shear tolerance; slow speeds prevent degradation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>For glass-filled materials, higher injection speeds help maintain fiber length and improve mechanical properties. However, excessive speed causes fiber breakage at the gate, reducing the strengthening effect. The sweet spot is typically 100 to 150 mm\/s for 30 percent glass-filled nylon. For heat-sensitive materials like PC and POM, the multi-stage approach is especially important \u2014 a sudden speed spike at the gate can generate enough shear heat to degrade the polymer.<\/p>\n<h2>What Are the Best Practices for Injection Speed Settings?<\/h2>\n<p>Based on two decades of production experience, here are the rules we follow. First, start with a decoupled molding approach \u2014 fill the cavity to 95 to 99 percent by volume using velocity control, then switch to pressure control via holding pressure. Do not try to fill and pack at the same time. Second, always profile multi-stage speed. Even for simple parts, use at minimum a 3-stage profile. The improvement in consistency is worth the setup time.<\/p>\n<p>Third, use short shot analysis to find your profile. Set the machine to fill only part of the cavity, then gradually increase fill percentage while watching the flow pattern. Fourth, monitor cavity pressure, not just screw speed. What matters inside the <a href=\"https:\/\/zetarmold.com\/ja\/injection-mold-complete-guide\/\">\u5c04\u51fa\u6210\u5f62\u91d1\u578b<\/a> is melt pressure and flow velocity \u2014 cavity pressure sensors give you the real picture.<\/p>\n<p>Fifth, document your speed profiles. Every mold should have a documented speed curve as part of its process parameters. When you move a mold to a different machine, you will need to adjust speeds to match the new machine response characteristics. Sixth, re-validate after material lot changes \u2014 different lots of the same grade can have slightly different viscosity, and a 5 to 10 percent speed adjustment is often enough to compensate.<\/p>\n<h2>\u5c04\u51fa\u901f\u5ea6\u306b\u95a2\u3059\u308b\u6700\u3082\u4e00\u822c\u7684\u306a\u8cea\u554f\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>\u5c04\u51fa\u6210\u5f62\u306b\u304a\u3051\u308b\u9069\u5207\u306a\u5c04\u51fa\u901f\u5ea6\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u9069\u5207\u306a\u5c04\u51fa\u901f\u5ea6\u306f\u3001\u6750\u6599\u3068\u88fd\u54c1\u5f62\u72b6\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u71b1\u53ef\u5851\u6027\u6a39\u8102\u3067\u306f\u3001\u7c98\u5ea6\u3068\u8089\u539a\u306b\u5fdc\u3058\u3066\u5c04\u51fa\u901f\u5ea6\u306f50\uff5e200 mm\/s\u306e\u7bc4\u56f2\u306b\u306a\u308a\u307e\u3059\u30021 mm\u672a\u6e80\u306e\u8584\u8089\u88fd\u54c1\u306f\u3001\u51cd\u7d50\u524d\u306b\u5b8c\u5168\u306b\u5145\u586b\u3059\u308b\u305f\u3081\u306b\u901a\u5e38150 mm\/s\u4ee5\u4e0a\u306e\u901f\u5ea6\u304c\u5fc5\u8981\u3067\u3059\u3002\u4e00\u65b9\u30013 mm\u3092\u8d85\u3048\u308b\u539a\u8089\u88fd\u54c1\u3067\u306f\u300130\uff5e80 mm\/s\u306e\u901f\u5ea6\u304c\u6700\u9069\u3067\u3059\u3002\u521d\u671f\u30d7\u30ed\u30bb\u30b9\u8a2d\u5b9a\u6642\u306b\u306f\u3001\u6a5f\u68b0\u306e\u6700\u5927\u901f\u5ea6\u306e50\uff5e70\uff05\u304b\u3089\u958b\u59cb\u3057\u3001\u30b7\u30e7\u30fc\u30c8\u30b7\u30e7\u30c3\u30c8\u89e3\u6790\u306e\u7d50\u679c\u306b\u57fa\u3065\u3044\u3066\u8abf\u6574\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u5c04\u51fa\u901f\u5ea6\u306f\u88fd\u54c1\u54c1\u8cea\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u5c04\u51fa\u901f\u5ea6\u306f\u3001\u30e1\u30eb\u30c8\u6d41\u91cf\u3001\u30ad\u30e3\u30d3\u30c6\u30a3\u5185\u5727\u529b\u306e\u4f1d\u9054\u3001\u304a\u3088\u3073\u90e8\u54c1\u304c\u5404\u6210\u5f62\u30b5\u30a4\u30af\u30eb\u3067\u56fa\u5316\u3059\u308b\u65b9\u6cd5\u3092\u76f4\u63a5\u5236\u5fa1\u3057\u307e\u3059\u3002\u9045\u3059\u304e\u308b\u3068\u3001\u30e1\u30eb\u30c8\u304c\u30ad\u30e3\u30d3\u30c6\u30a3\u7aef\u306b\u5230\u9054\u3059\u308b\u524d\u306b\u51b7\u5374\u3055\u308c\u308b\u305f\u3081\u3001\u30b7\u30e7\u30fc\u30c8\u30b7\u30e7\u30c3\u30c8\u3001\u5f31\u3044\u6eb6\u7740\u30e9\u30a4\u30f3\u3001\u4e0d\u5b8c\u5168\u5145\u586b\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u901f\u3059\u304e\u308b\u3068\u3001\u904e\u5270\u306a\u305b\u3093\u65ad\u52a0\u71b1\u3068\u5727\u7e2e\u30ac\u30b9\u306b\u3088\u308a\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u3001\u30b8\u30a7\u30c3\u30c6\u30a3\u30f3\u30b0\u3001\u713c\u3051\u8de1\u3001\u30a8\u30a2\u30c8\u30e9\u30c3\u30d7\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u6700\u9069\u306a\u901f\u5ea6\u306f\u3001\u5145\u586b\u5168\u4f53\u3092\u901a\u3058\u3066\u30e1\u30eb\u30c8\u30d5\u30ed\u30f3\u30c8\u901f\u5ea6\u3092\u4e00\u5b9a\u306b\u4fdd\u3061\u3001\u5747\u4e00\u306a\u8089\u539a\u3068\u90e8\u54c1\u5168\u4f53\u3067\u4e00\u8cab\u3057\u305f\u69cb\u9020\u7684\u5b8c\u5168\u6027\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30de\u30eb\u30c1\u30b9\u30c6\u30fc\u30b8\u5c04\u51fa\u901f\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u30de\u30eb\u30c1\u30b9\u30c6\u30fc\u30b8\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u306f\u3001\u4e00\u3064\u306e\u4e00\u5b9a\u901f\u5ea6\u3092\u5168\u30b7\u30e7\u30c3\u30c8\u3067\u4f7f\u7528\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u5145\u586b\u4e2d\u306e\u7279\u5b9a\u306e\u30b9\u30af\u30ea\u30e5\u30fc\u4f4d\u7f6e\u3067\u5c04\u51fa\u901f\u5ea6\u3092\u5909\u66f4\u3057\u307e\u3059\u3002\u5178\u578b\u7684\u306a5\u6bb5\u968e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u6700\u5927\u901f\u5ea6\u306e80\u301c100\uff05\u3067\u306e\u9ad8\u901f\u30e9\u30f3\u30ca\u30fc\u5145\u586b\u3067\u958b\u59cb\u3057\u3001\u30b2\u30fc\u30c8\u3067\u30b8\u30a7\u30c3\u30c6\u30a3\u30f3\u30b0\u3092\u9632\u3050\u305f\u3081\u306b\u6e1b\u901f\u3057\u3001\u30ad\u30e3\u30d3\u30c6\u30a3\u5145\u586b\u306e\u305f\u3081\u306b60\u301c90\uff05\u3067\u52a0\u901f\u3057\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u3092\u9632\u3050\u305f\u3081\u306e\u4f4e\u901f\u306e\u5145\u586b\u7d42\u4e86\u6bb5\u968e\u3067\u7d42\u4e86\u3057\u307e\u3059\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u30e1\u30eb\u30c8\u306e\u6d41\u5165\u6319\u52d5\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u3067\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u3001\u713c\u3051\u8de1\u3001\u6eb6\u7740\u30e9\u30a4\u30f3\u306a\u3069\u306e\u4e0d\u826f\u3092\u4e00\u8cab\u3057\u3066\u4f4e\u6e1b\u3057\u307e\u3059\u3002<\/p>\n<h3>\u5c04\u51fa\u901f\u5ea6\u306f\u3069\u306e\u3088\u3046\u306b\u6e2c\u5b9a\u3057\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u5c04\u51fa\u901f\u5ea6\u306f\u3001\u5145\u586b\u6bb5\u968e\u306b\u304a\u3051\u308b\u30b9\u30af\u30ea\u30e5\u30fc\u306e\u5909\u4f4d\u901f\u5ea6\u3068\u3057\u3066\u6b63\u78ba\u306b\u6e2c\u5b9a\u3055\u308c\u3001\u901a\u5e38\u306f\u6bce\u79d2\u30df\u30ea\u30e1\u30fc\u30c8\u30eb\u307e\u305f\u306f\u6bce\u79d2\u7acb\u65b9\u30bb\u30f3\u30c1\u30e1\u30fc\u30c8\u30eb\u3067\u8868\u3055\u308c\u307e\u3059\u3002\u9589\u30eb\u30fc\u30d7\u30b5\u30fc\u30dc\u5236\u5fa1\u3092\u5099\u3048\u305f\u6700\u65b0\u306e\u6210\u5f62\u6a5f\u306f\u3001\u9ad8\u5206\u89e3\u80fd\u30a8\u30f3\u30b3\u30fc\u30c0\u30fc\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u969b\u306e\u30b9\u30af\u30ea\u30e5\u30fc\u4f4d\u7f6e\u3068\u901f\u5ea6\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u8ffd\u8de1\u3057\u3001\u8a2d\u5b9a\u5024\u306e1\uff05\u4ee5\u5185\u306e\u7cbe\u5ea6\u3092\u9054\u6210\u3057\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u6210\u5f62\u6a5f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306f\u3001\u77ac\u6642\u901f\u5ea6\u3068\u5e73\u5747\u5145\u586b\u901f\u5ea6\u306e\u4e21\u65b9\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u3001\u751f\u7523\u904b\u8ee2\u4e2d\u306b\u591a\u6bb5\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u5404\u6bb5\u968e\u304c\u6b63\u3057\u304f\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>What is the difference between injection speed and injection pressure?<\/h3>\n<p>\u5c04\u51fa\u901f\u5ea6\u306f\u5145\u586b\u6bb5\u968e\u3067\u306e\u30b9\u30af\u30ea\u30e5\u30fc\u306e\u524d\u9032\u901f\u5ea6\u3067\u3042\u308a\u3001\u5c04\u51fa\u5727\u529b\u306f\u30e1\u30eb\u30c8\u3092\u30ad\u30e3\u30d3\u30c6\u30a3\u306b\u62bc\u3057\u8fbc\u3080\u529b\u3067\u3059\u3002\u901f\u5ea6\u306f\u5145\u586b\u6bb5\u968e\u3092\u5236\u5fa1\u3057\u3001\u5727\u529b\u306f\u305d\u308c\u306b\u7d9a\u304f\u30d1\u30c3\u30ad\u30f3\u30b0\u304a\u3088\u3073\u4fdd\u5727\u6bb5\u968e\u3092\u5f15\u304d\u7d99\u304e\u307e\u3059\u3002\u30c7\u30ab\u30c3\u30d7\u30eb\u6210\u5f62\u3067\u306f\u3001\u3088\u308a\u826f\u3044\u30d7\u30ed\u30bb\u30b9\u5236\u5fa1\u3068\u30b7\u30e7\u30c3\u30c8\u9593\u306e\u518d\u73fe\u6027\u3092\u5f97\u308b\u305f\u3081\u306b\u3001\u3053\u308c\u30892\u3064\u306e\u6bb5\u968e\u3092\u610f\u56f3\u7684\u306b\u5206\u96e2\u3057\u307e\u3059\u3002\u901f\u5ea6\u3092\u9ad8\u304f\u8a2d\u5b9a\u3057\u3059\u304e\u308b\u3068\u5727\u529b\u8981\u6c42\u304c\u5897\u52a0\u3057\u30d5\u30e9\u30c3\u30b7\u30e5\u306e\u539f\u56e0\u3068\u306a\u308a\u3001\u4f4e\u304f\u8a2d\u5b9a\u3057\u3059\u304e\u308b\u3068\u6750\u6599\u304c\u56fa\u5316\u3059\u308b\u524d\u306b\u30ad\u30e3\u30d3\u30c6\u30a3\u304c\u5145\u586b\u3055\u308c\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u5c04\u51fa\u901f\u5ea6\u306f\u30d5\u30e9\u30c3\u30b7\u30e5\u4e0d\u826f\u3092\u4fee\u6b63\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u306f\u3044\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u306f\u751f\u7523\u74b0\u5883\u3067\u5c04\u51fa\u901f\u5ea6\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u89e3\u6c7a\u3055\u308c\u308b\u6700\u3082\u4e00\u822c\u7684\u306a\u6b20\u9665\u306e\u4e00\u3064\u3067\u3059\u3002\u30d5\u30e9\u30c3\u30b7\u30e5\u306f\u3001\u5145\u586b\u7d42\u4e86\u6642\u306b\u904e\u5270\u306a\u5727\u529b\u3084\u901f\u5ea6\u306b\u3088\u3063\u3066\u6eb6\u878d\u6a39\u8102\u304c\u91d1\u578b\u306e\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3\u304b\u3089\u6ea2\u308c\u51fa\u308b\u3053\u3068\u3067\u767a\u751f\u3057\u307e\u3059\u3002\u6700\u7d42\u5145\u586b\u6bb5\u968e\u3067\u5c04\u51fa\u901f\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u5727\u529b\u304c\u9ad8\u304f\u306a\u308a\u3059\u304e\u308b\u524d\u306b\u91d1\u578b\u304c\u9069\u5207\u306b\u30b7\u30fc\u30eb\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u6700\u5927\u901f\u5ea6\u306e10\uff5e20\uff05\u306e\u4f4e\u901f\u6700\u7d42\u6bb5\u968e\u3092\u8a2d\u5b9a\u3057\u305f\u591a\u6bb5\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u306f\u3001\u7cbe\u5bc6\u6210\u5f62\u4f5c\u696d\u306b\u304a\u3051\u308b\u30d5\u30e9\u30c3\u30b7\u30e5\u9632\u6b62\u306e\u6a19\u6e96\u7684\u306a\u662f\u6b63\u63aa\u7f6e\u3067\u3059\u3002<\/p>\n<h3>ABS\u306b\u306f\u3069\u306e\u5c04\u51fa\u901f\u5ea6\u3092\u4f7f\u7528\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n<p>ABS\u306e\u5834\u5408\u3001\u5145\u586b\u901f\u5ea6\u309280\u301c150 mm\/s\u3067\u958b\u59cb\u3057\u3001\u90e8\u54c1\u5f62\u72b6\u3068\u8089\u539a\u8981\u4ef6\u306b\u57fa\u3065\u3044\u3066\u8abf\u6574\u3057\u307e\u3059\u3002ABS\u306f\u4e2d\u7a0b\u5ea6\u306e\u7c98\u5ea6\u3092\u6301\u3061\u3001\u9ad8\u901f\u306e\u521d\u671f\u5145\u586b\u306b\u7d9a\u304f\u4f4e\u901f\u306e\u5145\u586b\u7d42\u4e86\u6bb5\u968e\u3092\u4f34\u3046\u30de\u30eb\u30c1\u30b9\u30c6\u30fc\u30b8\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u90e8\u54c1\u8868\u9762\u306e\u5149\u6ca2\u8de1\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306f\u901f\u5ea6\u9077\u79fb\u304c\u6025\u6fc0\u3059\u304e\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u8089\u539a\u90e8\u5206\u306b\u30b7\u30f3\u30af\u30de\u30fc\u30af\u304c\u898b\u3089\u308c\u308b\u5834\u5408\u306f\u3001ABS\u306fPC\u3088\u308a\u3082\u901f\u5ea6\u5909\u52d5\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306b\u304f\u3044\u305f\u3081\u3001\u5c04\u51fa\u901f\u5ea6\u3092\u5909\u66f4\u3059\u308b\u524d\u306b\u30d1\u30c3\u30af\u5727\u529b\u3092\u4e0a\u3052\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<hr style=\"margin:2em 0;border:none;border-top:1px solid #e0e0e0;\" \/>\n<ol class=\"footnotes\">\n<li id=\"fn:1\">\n<p><strong>multi-stage profiling<\/strong>\uff1a\u30de\u30eb\u30c1\u30b9\u30c6\u30fc\u30b8\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3068\u306f\u3001\u5145\u586b\u6bb5\u968e\u3067\u7279\u5b9a\u306e\u30b9\u30af\u30ea\u30e5\u30fc\u4f4d\u7f6e\u3067\u5c04\u51fa\u901f\u5ea6\u3092\u5909\u5316\u3055\u305b\u308b\u624b\u6cd5\u3092\u6307\u3057\u3001\u79d1\u5b66\u7684\u304a\u3088\u3073\u30c7\u30ab\u30c3\u30d7\u30eb\u6210\u5f62\u65b9\u6cd5\u8ad6\u306e\u4e2d\u6838\u3068\u306a\u308b\u6280\u8853\u3067\u3059 <a href=\"#fnref1:1\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:2\">\n<p><strong>injection speed definition<\/strong>\uff1a\u5c04\u51fa\u901f\u5ea6\u306e\u5b9a\u7fa9\u306f\u3001\u5145\u586b\u6bb5\u968e\u3067\u306e\u30b9\u30af\u30ea\u30e5\u30fc\u306e\u524d\u9032\u901f\u5ea6\u3092\u6307\u3057\u3001mm\/s\u307e\u305f\u306fcm3\/s\u3067\u6e2c\u5b9a\u3055\u308c\u3001\u6eb6\u878d\u30dd\u30ea\u30de\u30fc\u304c\u91d1\u578b\u30ad\u30e3\u30d3\u30c6\u30a3\u3092\u5145\u586b\u3059\u308b\u901f\u3055\u3092\u76f4\u63a5\u5236\u5fa1\u3057\u307e\u3059 <a href=\"#fnref1:2\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:3\">\n<p><strong>scientific molding methodology<\/strong>\uff1a\u79d1\u5b66\u7684\u6210\u5f62\u65b9\u6cd5\u8ad6\u3068\u306f\u3001\u30c7\u30fc\u30bf\u99c6\u52d5\u578b\u5b9f\u9a13\u3001\u30ad\u30e3\u30d3\u30c6\u30a3\u5185\u5727\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3001\u30c7\u30ab\u30c3\u30d7\u30eb\u6210\u5f62\u306e\u539f\u5247\u3092\u4f7f\u7528\u3059\u308b\u3001\u5c04\u51fa\u6210\u5f62\u30d7\u30ed\u30bb\u30b9\u958b\u767a\u3078\u306e\u4f53\u7cfb\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u6307\u3057\u307e\u3059 <a href=\"#fnref1:3\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>\u5c04\u51fa\u901f\u5ea6 \u2014 \u30b9\u30af\u30ea\u30e5\u30fc\u304c\u6eb6\u878d\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u3092\u91d1\u578b\u30ad\u30e3\u30d3\u30c6\u30a3\u306b\u99c6\u52d5\u3059\u308b\u901f\u5ea6 \u2014 \u306f\u5c04\u51fa\u6210\u5f62\u6a5f\u306b\u304a\u3044\u3066\u6700\u3082\u5f37\u529b\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u4e00\u3064\u3067\u3059\u3002\u9069\u5207\u306b\u8a2d\u5b9a\u3059\u308c\u3070\u3001\u5149\u6ca2\u304c\u3042\u308a\u5bf8\u6cd5\u5b89\u5b9a\u6027\u306e\u9ad8\u3044\u90e8\u54c1\u3092\u30b5\u30a4\u30af\u30eb\u3054\u3068\u306b\u5f97\u3089\u308c\u307e\u3059\u3002\u8aa4\u3063\u305f\u8a2d\u5b9a\u3067\u306f\u3001\u30d0\u30ea\u3001\u30b7\u30e7\u30fc\u30c8\u30b7\u30e7\u30c3\u30c8\u3001\u30b7\u30f3\u30af\u30de\u30fc\u30af\u3001\u53cd\u308a\u306a\u3069\u306e\u554f\u984c\u306b\u6c38\u9060\u306b\u60a9\u307e\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u5f53\u793e\u306e\u4e0a\u6d77\u5de5\u5834\u3067\u306f\u300190\u30c8\u30f3\u304b\u30891850\u30c8\u30f3\u307e\u3067\u306e\u6210\u5f62\u6a5f\u306b\u304a\u3044\u306620\u5e74\u4ee5\u4e0a\u306b\u308f\u305f\u308a\u901f\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u8abf\u6574\u3057\u3066\u304d\u305f\u7d4c\u9a13\u304b\u3089\u3001\u672c\u30ac\u30a4\u30c9\u3067\u306f\u5b9f\u8df5\u7684\u306b\u91cd\u8981\u306a\u8981\u70b9\u3092\u51dd\u7e2e\u3057\u307e\u3057\u305f\u3002\u4e3b\u8981\u30dd\u30a4\u30f3\u30c8 \u5c04\u51fa\u901f\u5ea6\u306f\u6eb6\u878d\u6a39\u8102\u306e\u6d41\u52d5\u901f\u5ea6\u3001\u30ad\u30e3\u30d3\u30c6\u30a3\u5185\u5727\u529b\u3001\u90e8\u54c1\u54c1\u8cea\u3092\u76f4\u63a5\u5236\u5fa1\u3059\u308b \u591a\u6bb5\u968e\u901f\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306f\u5358\u4e00\u901f\u5ea6\u5145\u586b\u3088\u308a\u3082\u307b\u3068\u3093\u3069\u306e\u90e8\u54c1\u3067\u512a\u308c\u305f\u6027\u80fd\u3092\u767a\u63ee\u3059\u308b \u8584\u8089\u90e8\u54c1\u3067\u306f[\u2026]<\/p>","protected":false},"author":1,"featured_media":40478,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Injection Speed in Injection Molding: Complete Guide | ZetarMold","_seopress_titles_desc":"Comprehensive guide to injection speed in injection molding covering factors, control methods, speed profiles, and defect prevention for 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