{"id":16486,"date":"2023-01-26T10:00:00","date_gmt":"2023-01-26T02:00:00","guid":{"rendered":"https:\/\/zetarmold.com\/?p=16486"},"modified":"2026-04-09T08:24:12","modified_gmt":"2026-04-09T00:24:12","slug":"%e3%83%89%e3%83%a9%e3%83%95%e3%83%88%e3%82%a2%e3%83%b3%e3%82%b0%e3%83%ab%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/ja\/%e3%83%89%e3%83%a9%e3%83%95%e3%83%88%e3%82%a2%e3%83%b3%e3%82%b0%e3%83%ab%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2\/","title":{"rendered":"\u30c9\u30e9\u30d5\u30c8\u30a2\u30f3\u30b0\u30eb\u5c04\u51fa\u6210\u5f62\u3068\u306f\uff1f"},"content":{"rendered":"

\u629c\u304d\u52fe\u914d\u306f\u3001\u5c04\u51fa\u6210\u5f62\u90e8\u54c1\u306e\u69cb\u9020\u7684\u306a\u5b8c\u5168\u6027\u3068\u5916\u89b3\u7684\u306a\u9b45\u529b\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u8a2d\u8a08\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/strong><\/p>\n

\u91d1\u578b\u306e\u958b\u9589\u65b9\u5411\u306b\u5782\u76f4\u306a\u58c1\u306b\u89d2\u5ea6\u306e\u3042\u308b\u30c6\u30fc\u30d1\u30fc\u3092\u8a2d\u3051\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u6e2c\u5b9a\u306f\u90e8\u54c1\u306e\u5f37\u5ea6\u3092\u4fdd\u3061\u306a\u304c\u3089\u3001\u7f8e\u7684\u306b\u7f8e\u3057\u3044\u7d50\u679c\u3092\u751f\u307f\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/strong><\/p>\n

\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6\u306f\u5ea6\u5358\u4f4d\u3067\u8868\u3055\u308c\u3001\u88fd\u54c1\u958b\u767a\u306b\u3069\u306e\u3088\u3046\u306b\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6\u3092\u53d6\u308a\u5165\u308c\u308b\u306e\u304c\u6700\u9069\u304b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3001\u512a\u308c\u305f\u7d50\u679c\u3092\u5f97\u308b\u305f\u3081\u306e\u9375\u3068\u306a\u308b\u3002<\/strong><\/p>\n

1. Why do plastic \u5c04\u51fa\u6210\u5f62<\/a> products have draft angles?<\/span><\/h2>\n

The injection molding process requires specialized molds to form parts. After the product has been formed and cured, it must be removed from within the cavity of these molds – a step also known as ‘demoulding’.<\/p>\n

\u8131\u578b\u304c\u3046\u307e\u304f\u3044\u304b\u306a\u3044\u3068\u3001\u8131\u578b\u6642\u306e\u53ce\u7e2e\u306b\u3088\u308a\u3001\u4e2d\u5b50\u3078\u306e\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u5dfb\u304d\u3064\u304d\u3084\u30ad\u30e3\u30d3\u30c6\u30a3\u3078\u306e\u30c8\u30e9\u30c3\u30d4\u30f3\u30b0\u304c\u767a\u751f\u3059\u308b\u3002 \u5c04\u51fa\u6210\u5f62\u91d1\u578b<\/a> \u30d5\u30a9\u30fc\u30e1\u30fc\u30b7\u30e7\u30f3\u3002 <\/p>\n

\u91d1\u578b\u304b\u3089\u88fd\u54c1\u3092\u53d6\u308a\u51fa\u3059\u969b\u3001\u30b9\u30e0\u30fc\u30ba\u306a\u53d6\u308a\u51fa\u3057\u3068\u7834\u640d\u3092\u9632\u3050\u305f\u3081\u306b\u3001\u624b\u4f5c\u696d\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u3002<\/p>\n

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

When designing injection molds, a thoughtful consideration of draft angle is paramount. Draft angles are essential for the efficient demolding of plastic parts from their molding fixture and should ensure that enough clearance has been allotted to prevent any part or tool damage due to extraction forces. The right design considerations can help make sure your product’s success isn’t held captive by its own.<\/p>\n

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

2.\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6\u306e\u5927\u304d\u3055\u306b\u5f71\u97ff\u3059\u308b\u8981\u56e0\u306f\uff1f<\/span><\/h2>\n

\u5c04\u51fa\u6210\u5f62\u3067\u306f\u3001\u6700\u9069\u306a\u7d50\u679c\u3092\u5f97\u308b\u305f\u3081\u306b\u8003\u616e\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u70b9\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002\u71b1\u53ef\u5851\u6027\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u6750\u6599\u3001\u91d1\u578b\u8868\u9762\u4ed5\u4e0a\u3052\u3001\u90e8\u54c1\u8a2d\u8a08\u306e\u8907\u96d1\u3055\u306a\u3069\u306e\u8981\u7d20\u306f\u3059\u3079\u3066\u3001\u6700\u9069\u306a\u7d50\u679c\u3092\u5f97\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u629c\u304d\u52fe\u914d\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n

a. The draft angle is a key factor in producing successful injection molded products. Its size depends on several design elements, such as the geometry and wall thickness of the product; furthermore, it can be heavily impacted by secondary factors like surface roughness or cavitation lines left behind from processing.<\/p>\n

b.\u786c\u3044\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306f\u3001\u4fe1\u983c\u3067\u304d\u308b\u7d50\u679c\u3092\u5f97\u308b\u305f\u3081\u306b\u3001\u88fd\u9020\u5de5\u7a0b\u3067\u67d4\u3089\u304b\u3044\u6750\u6599\u3088\u308a\u3082\u5927\u304d\u306a\u629c\u304d\u52fe\u914d\u3092\u5fc5\u8981\u3068\u3059\u308b\u3002<\/p>\n

c.\u8907\u96d1\u306a\u5f62\u72b6\u3084\u8907\u6570\u306e\u6210\u5f62\u5b54\u3092\u6301\u3064\u5c04\u51fa\u6210\u5f62\u54c1\u3067\u306f\u3001\u30b9\u30e0\u30fc\u30ba\u306a\u751f\u7523\u306e\u305f\u3081\u306b\u8131\u578b\u52fe\u914d\u3092\u5927\u304d\u304f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n

d. For large injection molding products with deep holes, use a gentler angle when demolding for optimum results.<\/p>\n

e. As wall thickness increases for injection molding products, the force required to secure its core is enhanced. This necessitates a larger draft angle when designing the product.<\/p>\n

\u91d1\u578b\u3084\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u3088\u3046\u306a\u786c\u3044\u90e8\u54c1\u306f\u3001\u30b4\u30e0\u306e\u3088\u3046\u306a\u67d4\u8edf\u306a\u90e8\u54c1\u3088\u308a\u3082\u3001\u96e2\u578b\u3092\u6210\u529f\u3055\u305b\u308b\u305f\u3081\u306b\u5927\u304d\u306a\u629c\u304d\u52fe\u914d\u3092\u5fc5\u8981\u3068\u3059\u308b\u3002<\/p>\n

Complex parts with geometric features, including overhangs and undercuts also call for a strategic angle increase to ensure the injection mould is unset properly.<\/p>\n

3.\u9069\u5207\u306a\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6\u306e\u6c7a\u3081\u65b9\u306f\uff1f<\/span><\/h2>\n

With injection molded parts, manufacturers need to assess the appropriate draft angle for proper part release. To maximize efficiency and accuracy of this decision-making process, two methods are available: empirical data\/industry standards or computer-aided design (CAD) software simulation. <\/p>\n

\u524d\u8005\u306f\u7d20\u6750\u3068\u30c7\u30b6\u30a4\u30f3\u306e\u4ed5\u69d8\u306b\u57fa\u3065\u3044\u305f\u5927\u307e\u304b\u306a\u898b\u7a4d\u3082\u308a\u3092\u63d0\u4f9b\u3057\u3001\u5f8c\u8005\u306f\u6b63\u3057\u3044\u7d50\u679c\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306b\u3001\u3088\u308a\u6b63\u78ba\u306a\u4ed5\u69d8\u3092\u6c7a\u5b9a\u3059\u308b\u6280\u8853\u3092\u5229\u7528\u3059\u308b\u3002<\/p>\n

4.\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6\u306e\u9806\u5b88\u306e\u539f\u5247\u3068\u306f\uff1f<\/span><\/h2>\n

a.\u88fd\u54c1\u3092\u88fd\u56f3\u3059\u308b\u3068\u304d\u6700\u9069\u306a\u88fd\u56f3\u3092\u884c\u3046\u305f\u3081\u306b\u3001\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u4f7f\u7528\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002(\u56f31\u53c2\u7167<\/strong>).<\/p>\n

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

b.\u9aa8\u306e\u6700\u9069\u306a\u4f4d\u7f6e\u6c7a\u3081\u3092\u78ba\u5b9f\u306b\u3059\u308b\u305f\u3081\u3001\u305d\u306e\u30bc\u30ed\u30c9\u30e9\u30d5\u30c8\u89d2\u306f\u901a\u5e380.25\uff5e1\u306e\u7bc4\u56f2\u3068\u3057\u3001\u30c8\u30c3\u30d7\u30b5\u30a4\u30ba\u306e\u7d76\u5bfe\u6700\u5c0f\u5024\u306f0.8mm\u4ee5\u4e0b\u3068\u3059\u308b(\u5199\u771f2<\/strong>).<\/p>\n

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

c.\u88fd\u54c1\u8868\u9762\u306e\u6df1\u3055\u306f\u3001\u9ad8\u3055\u304c40mm\u672a\u6e80\u306e\u7d20\u6750\u306b\u306f1\u5ea6\u3001\u305d\u308c\u4ee5\u4e0a\u306e\u7d20\u6750\u306b\u306f0.5\u5ea6\u306e\u89d2\u5ea6\u306e\u30c9\u30e9\u30d5\u30c8\u304c\u6700\u9069\u306a\u7d50\u679c\u3092\u3082\u305f\u3089\u3059\u3088\u3046\u3001\u614e\u91cd\u306b\u30c9\u30e9\u30d5\u30c8\u3055\u308c\u308b\u3002<\/p>\n

d.\u9069\u5207\u306a\u629c\u304d\u52fe\u914d\u304c\u3042\u308c\u3070\u3001\u30a8\u30c3\u30c1\u30f3\u30b0\u88fd\u54c1\u306f\u305d\u306e\u6f5c\u5728\u80fd\u529b\u3092\u6700\u5927\u9650\u306b\u767a\u63ee\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5916\u58c1\u306e\u6df1\u30550.001\u3054\u3068\u306b1\uff5e1.5\u00b0\u306e\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u304c\u3001\u5185\u58c1\u3067\u306f\u3088\u308a\u5927\u304d\u306a\u89d2\u5ea6\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u4e00\u822c\u306b\u3001\u5916\u58c1\u306e\u30b0\u30ec\u30a4\u30f3\u306e\u6df1\u30550.001\u3054\u3068\u306b\u30011\uff5e1.5\u00b0\u306e\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6\u304c\u5fc5\u8981\u3068\u3055\u308c\u3001\u5185\u58c1\u3067\u306f\u3088\u308a\u5927\u304d\u306a\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6\u304c\u5fc5\u8981\u3068\u3055\u308c\u308b\u3002 <\/p>\n

(\u5b9f\u969b\u306e\u30a8\u30c3\u30c1\u30f3\u30b0\u306e\u4e0b\u66f8\u304d\u306b\u3064\u3044\u3066\u306f\u3001\u30a8\u30c3\u30c1\u30f3\u30b0\u4f1a\u793e\u304b\u3089\u63d0\u4f9b\u3055\u308c\u308b\u30a8\u30c3\u30c1\u30f3\u30b0\u306e\u4e0b\u66f8\u304d\u306e\u60c5\u5831\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\uff09\u3002\u3068\u3057\u3066 \u5199\u771f3<\/strong>.<\/p>\n

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

e.\u6b63\u78ba\u3055\u304c\u6700\u91cd\u8981\u3067\u306a\u3044\u5834\u5408\u306f\u3001\u30c9\u30e9\u30d5\u30c8\u306b\u3082\u3063\u3068\u5bdb\u5927\u3055\u3092\u8a8d\u3081\u308b\u3053\u3068\u3092\u691c\u8a0e\u3059\u308b\u3002<\/p>\n

f.\u88fd\u54c1\u306e\u30c9\u30e9\u30d5\u30c8\u30a2\u30f3\u30b0\u30eb\u3092\u4fee\u6b63\u3059\u308b\u5834\u5408\u3001\u7d44\u307f\u7acb\u3066\u95a2\u4fc2\u3068\u5916\u89b3\u306e\u4e21\u65b9\u304c\u671f\u5f85\u306b\u5fdc\u3048\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002 <\/p>\n

\u7279\u306b\u3001\u91cd\u8981\u306a\u5bf8\u6cd5\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u5bf8\u6cd5\u304c\u671b\u307e\u3057\u3044\u7bc4\u56f2\u5185\u306b\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u53c2\u7167 \u5199\u771f4 <\/strong>\u3055\u3089\u306b\u8a73\u3057\u304f\u8aac\u660e\u3059\u308b\uff01<\/p>\n

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

g.\u5916\u9762\u304c\u6ed1\u3089\u304b\u306a\u5c0f\u578b\u88fd\u54c1\u306f\u30c9\u30e9\u30d5\u30c8\u22651\u00b0\u3001\u5927\u578b\u88fd\u54c1\u306f\u30c9\u30e9\u30d5\u30c8\u22653\u00b0\u3002<\/p>\n

h.\u30d1\u30f3\u30af\u306e\u50be\u304d\u3068\u64e6\u904e\u4f4d\u7f6e\u306f\u3001\u8a31\u5bb9\u7bc4\u56f2\u5185\u3067\u3067\u304d\u308b\u3060\u3051\u5927\u304d\u304f\u3059\u308b\u3002 \u5199\u771f5\u306e\u901a\u308a\u3002<\/strong><\/p>\n

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

5.\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6\u306e\u91cd\u8981\u6027\u3068\u306f\uff1f<\/span><\/h2>\n

a. Draft angles can be a double-edged sword – while they enable the easy release of an injection molded part, if not calculated correctly, their inclusion could lead to deformation or damage caused by excessive pressure and tight tolerances. In such cases, both the mold and part are put at risk of sustaining harm.<\/p>\n

b.b. \u5c04\u51fa\u6210\u5f62<\/a> \u30c9\u30e9\u30d5\u30c8\u30a2\u30f3\u30b0\u30eb\u306f\u3001\u6210\u5f62\u54c1\u306e\u5f37\u5ea6\u3068\u5b89\u5b9a\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u30d2\u30b1\u3084\u30dc\u30a4\u30c9\u306a\u3069\u306e\u6b20\u9665\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3057\u3001\u5c04\u51fa\u6750\u6599\u306e\u6d41\u308c\u3092\u6539\u5584\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u306f\u3001\u671f\u5f85\u4ee5\u4e0a\u306e\u6210\u5f62\u54c1\u3092\u4f5c\u308b\u4e0a\u3067\u975e\u5e38\u306b\u8cb4\u91cd\u3067\u3059\uff01<\/p>\n

c. Mold release agents are essential to the injection molding process. Without them, safely and efficiently separating parts from molds would be impossible – not to mention increased wear on both components could jeopardize part performance and quality.<\/p>\n

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

\u30c9\u30e9\u30d5\u30c8\u306e\u89d2\u5ea6\u306f\u3001\u305d\u306e\u305f\u3081\u306e\u4e0d\u53ef\u6b20\u306a\u8981\u7d20\u3067\u3042\u308b\u3002 \u5c04\u51fa\u6210\u5f62<\/a> \u305d\u306e\u305f\u3081\u3001\u5404\u500b\u5225\u306e\u90e8\u54c1\u8a2d\u8a08\u306b\u5bfe\u3057\u3066\u6b63\u78ba\u306b\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002 <\/p>\n

\u3053\u306e\u8a08\u7b97\u306b\u306f\u3001\u6750\u6599\u306e\u7a2e\u985e\u3001\u8868\u9762\u4ed5\u4e0a\u3052\u3001\u8907\u96d1\u3055\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u8981\u7d20\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n

\u8a2d\u8a08\u6bb5\u968e\u3067\u5fc5\u8981\u306a\u4e88\u9632\u63aa\u7f6e\u3092\u8b1b\u3058\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u96e3\u984c\u3092\u5bb9\u6613\u306b\u514b\u670d\u3057\u3001\u9ad8\u54c1\u8cea\u306e\u88fd\u54c1\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 \u5c04\u51fa\u6210\u5f62\u90e8\u54c1<\/a> \u52b9\u7387\u7684\u3060\uff01<\/p>\n

\n

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

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