{"id":13500,"date":"2022-10-27T15:22:29","date_gmt":"2022-10-27T07:22:29","guid":{"rendered":"https:\/\/zetarmold.com\/?p=13500"},"modified":"2026-04-09T08:28:13","modified_gmt":"2026-04-09T00:28:13","slug":"%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e5%b0%8f%e3%82%b2%e3%83%bc%e3%83%88","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/ja\/%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e5%b0%8f%e3%82%b2%e3%83%bc%e3%83%88\/","title":{"rendered":"\u5c0f\u578b\u30b2\u30fc\u30c8\u306b\u3088\u308b\u5c04\u51fa\u6210\u5f62\u306e\u5229\u70b9"},"content":{"rendered":"

\u306f\u3058\u3081\u306b<\/strong> \u30b2\u30fc\u30c8\u306f\u6ce8\u6e6f\u30b7\u30b9\u30c6\u30e0\u306e\u91cd\u8981\u306a\u90e8\u5206\u3067\u3042\u308a\u3001\u4e3b\u6d41\u30bf\u30a4\u30d7\u306e\u30b2\u30fc\u30c8\u3092\u9664\u3044\u3066\u3001\u307b\u3068\u3093\u3069\u306e\u30a8\u30c3\u30b8\u30b2\u30fc\u30c8\u306f\u6ce8\u6e6f\u30b7\u30b9\u30c6\u30e0\u306e\u6700\u5c0f\u90e8\u5206\u3067\u3042\u308a\u3001\u305d\u306e\u5024\u306f\u4e00\u822c\u306b\u30de\u30cb\u30db\u30fc\u30eb\u30c9\u306e\u65ad\u9762\u7a4d\u306e3%\u304b\u30899%\u306b\u904e\u304e\u306a\u3044\u3002<\/p>\n

\u30cb\u30e5\u30fc\u30c8\u30f3\u5851\u6027\u6d41\u52d5\u5247\u306b\u5f93\u3046\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u878d\u6db2\u306e\u5834\u5408\u3001\u5927\u304d\u306a\u30b2\u30fc\u30c8\u65ad\u9762\u7a4d\u306f\u6d41\u52d5\u62b5\u6297\u3092\u6e1b\u5c11\u3055\u305b\u3001\u878d\u6db2\u6d41\u91cf\u3092\u5897\u52a0\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 \u5c04\u51fa\u6210\u5f62<\/a> \u54c1\u8cea\u3060\u3002<\/p>\n

\n
\"\"<\/figure>\n<\/div>\n

For most of the plastic melts that do not obey the Newtonian flow law, the use of reduced gate cross-sectional area is often likely to increase the shear rate of the melt, which, due to shear heat, will lead to a significant decrease in the apparent viscosity of the melt, but may be more conducive to mold filling than a large cross-sectional injection molding gate.<\/p>\n

\u5c0f\u578b\u30c8\u30f3\u30cd\u30eb\u30b2\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306e\u6d41\u8def\u62b5\u6297\u5897\u5927\u306b\u3088\u308b\u5727\u529b\u640d\u5931\u306b\u3064\u3044\u3066\u306f\u3001\u4e00\u5b9a\u306e\u7bc4\u56f2\u5185\u3067\u5674\u5c04\u5727\u529b\u3092\u9ad8\u3081\u308b\u3053\u3068\u3067\u88dc\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n

\n
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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div>\n

\u4e00\u822c\u306b\u3001\u5c04\u51fa\u6210\u5f62\u306b\u5c0f\u578b\u30b2\u30fc\u30c8\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u6b21\u306e\u3088\u3046\u306a\u5229\u70b9\u304c\u3042\u308b\u3002 <\/strong><\/p>\n

1.\u5c0f\u3055\u306a\u30b2\u30fc\u30c8\u306e\u524d\u7aef\u3068\u5f8c\u7aef\u306e\u9593\u306e\u5927\u304d\u306a\u5727\u529b\u5dee\u306f\u3001\u6eb6\u878d\u7269\u306e\u305b\u3093\u65ad\u901f\u5ea6\u3092\u52b9\u679c\u7684\u306b\u5897\u52a0\u3055\u305b\u3001\u3088\u308a\u5927\u304d\u306a\u305b\u3093\u65ad\u71b1\u3092\u751f\u3058\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u3053\u308c\u306f\u6eb6\u878d\u7269\u306e\u898b\u304b\u3051\u306e\u7c98\u5ea6\u306e\u4f4e\u4e0b\u3068\u6d41\u52d5\u6027\u306e\u5897\u52a0\u3092\u3082\u305f\u3089\u3057\u3001\u92f3\u578b\u306e\u5145\u586b\u3092\u52a9\u9577\u3059\u308b\u3002<\/p>\n

\u3053\u306e\u5c0f\u3055\u306a\u30b2\u30fc\u30c8\u306e\u7279\u5fb4\u306f\u3001\u8584\u8089\u88fd\u54c1\u3084\u5fae\u7d30\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u6301\u3064\u88fd\u54c1\u3001\u307e\u305f\u30dd\u30ea\u30a8\u30c1\u30ec\u30f3\uff08PE\uff09\u3001\u30dd\u30ea\u30d7\u30ed\u30d4\u30ec\u30f3\uff08PP\uff09\u3001\u30dd\u30ea\u30b9\u30c1\u30ec\u30f3\uff08PS\uff09\u306a\u3069\u3001\u7c98\u5ea6\u304c\u305b\u3093\u65ad\u901f\u5ea6\u306b\u654f\u611f\u306a\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306b\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u3092\u3082\u305f\u3089\u3059\u3002<\/p>\n

2. In the \u5c04\u51fa\u6210\u5f62\u30d7\u30ed\u30bb\u30b9<\/a>, the pressure-holding and shrinkage phase generally continues until the melt freezes at the gate, otherwise the melt in the injection mold cavity will flow backward outside the cavity.<\/p>\n

\u30b2\u30fc\u30c8\u30b5\u30a4\u30ba\u304c\u5927\u304d\u3044\u3068\u3001\u4fdd\u6301\u5727\u529b\u3068\u53ce\u7e2e\u6642\u9593\u304c\u9577\u304f\u306a\u308b\u305f\u3081\u3001\u9ad8\u5206\u5b50\u306e\u914d\u5411\u3068\u6d41\u52d5\u5909\u5f62\u304c\u5927\u304d\u304f\u306a\u308a\u3001\u88fd\u54c1\u3001\u7279\u306b\u30b2\u30fc\u30c8\u4ed8\u8fd1\u306b\u5927\u304d\u306a\u53ce\u7e2e\u5fdc\u529b\u304c\u767a\u751f\u3057\u3001\u6700\u7d42\u7684\u306b\u88fd\u54c1\u306e\u53cd\u308a\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n

If a small gate is used, it is possible to adjust the volume of the small gate through injection mold trial or mold repair, so that the melt at the gate can be frozen at the right time during the pressure-holding process, thus properly controlling the shrinkage time and avoiding the above phenomenon.<\/p>\n

\n
\n
\n
\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div>\n

3. Because of the small volume of the small gate and fast freezing, it is possible to produce some products without waiting for all the internal curing of the products after the small gate freezing, as long as the external curing layer has sufficient strength and rigidity, the products can be demolded, thus shortening the injection molding cycle and improving the production efficiency.<\/p>\n

4.\u8907\u6570\u306e\u30ad\u30e3\u30d3\u30c6\u30a3\u3092\u6301\u3064\u975e\u5e73\u8861\u92f3\u9020\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u5c0f\u3055\u306a\u30b2\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u3001\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u6eb6\u878d\u7269\u306e\u6d41\u308c\u306b\u5bfe\u3059\u308b\u30b2\u30fc\u30c8\u306e\u62b5\u6297\u306f\u3001\u30de\u30cb\u30db\u30fc\u30eb\u30c9\u5185\u306e\u6eb6\u878d\u7269\u306e\u62b5\u6297\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u9ad8\u304f\u306a\u308b\u305f\u3081\u3001\u6eb6\u878d\u7269\u304c\u30de\u30cb\u30db\u30fc\u30eb\u30c9\u306b\u5145\u586b\u3055\u308c\u3001\u5341\u5206\u306a\u5727\u529b\u304c\u9ad8\u307e\u3063\u305f\u5f8c\u3001\u5404\u30ad\u30e3\u30d3\u30c6\u30a3\u3092\u307b\u307c\u540c\u6642\u306b\u4f9b\u7d66\u3057\u5145\u586b\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3042\u308b\u3002<\/p>\n

\u3057\u305f\u304c\u3063\u3066\u3001\u8907\u6570\u306e\u30ad\u30e3\u30d3\u30c6\u30a3\u306b\u5c0f\u3055\u306a\u30a8\u30c3\u30b8\u30b2\u30fc\u30c8\u3092\u8a2d\u3051\u308b\u3053\u3068\u3067\u3001\u5404\u30ad\u30e3\u30d3\u30c6\u30a3\u306e\u9001\u308a\u901f\u5ea6\u3092\u30d0\u30e9\u30f3\u30b9\u3055\u305b\u3001\u6ce8\u6e6f\u30b7\u30b9\u30c6\u30e0\u306e\u30d0\u30e9\u30f3\u30b9\u306b\u8ca2\u732e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n

5. If a large gate is used for injection molding products, in case of high surface quality, appropriate tools or injection molding machine tools are needed to post-process the products to remove the gate scars, especially when the gate is too large, the gate condensate must be removed by sawing or cutting. However, this trouble can be avoided when small gates are used.<\/p>\n

For example, small gates can be removed quickly by hand or automatically by special injection mold structure during demolding. In addition, the scar after the small gate removal is small, and usually no or only a little rimming and polishing work is needed.<\/p>\n

\n
\n
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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div>\n

\u7d50\u8ad6<\/span><\/h2>\n

\u3057\u305f\u304c\u3063\u3066\u3001\u5c0f\u3055\u306a\u30b2\u30fc\u30c8\u306e\u4f7f\u7528\u306f\u3001\u92f3\u9020\u30b7\u30b9\u30c6\u30e0\u306e\u51dd\u7e2e\u6c34\u306e\u88fd\u54c1\u304b\u3089\u306e\u96e2\u8131\u3092\u5bb9\u6613\u306b\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u88fd\u54c1\u306e\u30c8\u30ea\u30df\u30f3\u30b0\u3082\u5bb9\u6613\u306b\u3059\u308b\u3002<\/p>\n

\u3057\u304b\u3057\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306a\u5229\u70b9\u304c\u3042\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u30b2\u30fc\u30c8\u304c\u5c0f\u3055\u3044\u3068\u6d41\u308c\u306b\u5927\u304d\u306a\u62b5\u6297\u304c\u751f\u3058\u3001\u3088\u308a\u9577\u3044\u6642\u9593\u304c\u304b\u304b\u308b\u3053\u3068\u306b\u7559\u610f\u3059\u3079\u304d\u3067\u3042\u308b\u3002 \u5c04\u51fa\u6210\u5f62\u91d1\u578b<\/a> \u5145\u586b\u6642\u9593\u3002<\/p>\n

\u3057\u305f\u304c\u3063\u3066\u3001\u6eb6\u878d\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u898b\u304b\u3051\u306e\u7c98\u5ea6\u3084\u305b\u3093\u65ad\u901f\u5ea6\u304c\u9ad8\u3044\u3082\u306e\uff08\u30dd\u30ea\u30ab\u30fc\u30dc\u30cd\u30fc\u30c8\u3084\u30dd\u30ea\u30b9\u30eb\u30db\u30f3\u306a\u3069\uff09\u306f\u3001\u5c0f\u53e3\u5f84\u6210\u5f62\u306b\u306f\u9069\u3055\u306a\u3044\u3002<\/p>\n

\u3055\u3089\u306b \u5c04\u51fa\u6210\u5f62<\/a> \u5927\u304d\u306a\u88fd\u54c1\u3067\u306f\u3001\u305d\u308c\u306b\u5fdc\u3058\u3066\u30b2\u30fc\u30c8\u65ad\u9762\u7a4d\u3092\u5927\u304d\u304f\u3059\u308b\u3053\u3068\u306b\u3082\u6ce8\u610f\u3092\u6255\u3046\u5fc5\u8981\u304c\u3042\u308a\u3001\u6642\u306b\u306f\u6eb6\u878d\u7269\u306e\u6d41\u52d5\u6027\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306b\u3001\u30b2\u30fc\u30c8\u65ad\u9762\u306e\u9ad8\u3055\u3092\u88fd\u54c1\u306e\u6700\u5927\u539a\u3055\u8fd1\u304f\u307e\u3067\u5927\u304d\u304f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n

\u4e0a\u8a18\u306e\u5834\u5408\u306e\u307b\u304b\u3001\u8089\u539a\u304c\u5927\u304d\u304f\u53ce\u7e2e\u7387\u304c\u5927\u304d\u3044\u88fd\u54c1\u3067\u306f\u3001\u4e00\u822c\u306b\u5341\u5206\u306a\u53ce\u7e2e\u6642\u9593\u3092\u78ba\u4fdd\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u3053\u306e\u5834\u5408\u306f\u30b2\u30fc\u30c8\u306e\u8a2d\u8a08\u65ad\u9762\u7a4d\u3092\u3042\u307e\u308a\u5c0f\u3055\u304f\u8a2d\u8a08\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002<\/p>\n

\n

Need a Quote for Your Injection Molding Project?<\/strong><\/p>\n

Get competitive pricing, DFM feedback, and production timeline from ZetarMold’s engineering team.<\/p>\n

Request a Free Quote \u2192<\/a> See our Injection Mold Complete Guide<\/a> for a comprehensive overview.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

\u306f\u3058\u3081\u306b\u30b2\u30fc\u30c8\u306f\u6ce8\u6e6f\u30b7\u30b9\u30c6\u30e0\u306e\u91cd\u8981\u306a\u90e8\u5206\u3067\u3042\u308a\u3001\u4e3b\u6d41\u30bf\u30a4\u30d7\u306e\u30b2\u30fc\u30c8\u3092\u9664\u3044\u3066\u3001\u307b\u3068\u3093\u3069\u306e\u30a8\u30c3\u30b8\u30b2\u30fc\u30c8\u306f\u6ce8\u6e6f\u30b7\u30b9\u30c6\u30e0\u306e\u6700\u5c0f\u90e8\u5206\u3067\u3042\u308a\u3001\u305d\u306e\u5024\u306f\u4e00\u822c\u306b\u30de\u30cb\u30db\u30fc\u30eb\u30c9\u306e\u65ad\u9762\u7a4d\u306e3%\u304b\u30899%\u306b\u904e\u304e\u306a\u3044\u3002\u30cb\u30e5\u30fc\u30c8\u30f3\u5851\u6027\u6d41\u52d5\u5247\u306b\u5f93\u3046\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u6eb6\u878d\u7269\u3067\u306f\u3001\u30b2\u30fc\u30c8\u306e\u65ad\u9762\u7a4d\u304c\u5927\u304d\u3044\u3068\u6d41\u52d5\u62b5\u6297\u304c\u6e1b\u5c11\u3057\u3001\u6eb6\u878d\u7269\u306e\u7c98\u5ea6\u304c\u305b\u3093\u65ad\u901f\u5ea6\u306b\u95a2\u4fc2\u3057\u306a\u3044\u305f\u3081\u3001\u6eb6\u878d\u7269\u306e\u6d41\u91cf\u3092\u5897\u52a0\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u92f3\u578b\u306e\u5145\u586b\u3068\u5c04\u51fa\u6210\u5f62\u306e\u54c1\u8cea\u306b\u3068\u3063\u3066\u3088\u308a\u6709\u5229\u3067\u3042\u308b\u3002<\/p>","protected":false},"author":1,"featured_media":13521,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Advantages of injection molding with small gates | ZetarMold","_seopress_titles_desc":"Master injection molding design with ZetarMold's guide to injection molding small gates. Optimize wall thickness, draft angles, and gate placement for","_seopress_robots_index":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[73],"tags":[],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/posts\/13500"}],"collection":[{"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/comments?post=13500"}],"version-history":[{"count":0,"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/posts\/13500\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/media\/13521"}],"wp:attachment":[{"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/media?parent=13500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/categories?post=13500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmold.com\/ja\/wp-json\/wp\/v2\/tags?post=13500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}