亚洲午夜成人片-日韩人妻无码系列专区-国产第一页浮力影院入口-宅男宅女精品国产av天堂

Welcome to Shenzhen Zhongyuan Plastic Co., Ltd!

News



Tel:(0755)27151698
Fax:(0755)27150611
Mailbox:szzyzcl@163.com / szzy@szzy99.com
Add:Building A1 and A2, No.1 Industrial Zone, yuliu property company, Gongming town, Bao'an District, Shenzhen
Industry information

當前位置:

首頁 News Industry information

Design essentials of injection molding parts

Release time:2024-04-09

stayInjection moldingIn the process, due to the uneven cooling and shrinkage of plastic in the mold cavity and the unreasonable structural design of injection molded parts, it is easy to cause various defects of products: shrinkage, weld marks, pores, deformation, galling, top injury, flash.


In order to obtain high-quality injection molded products, the structural manufacturability of products must be fully considered in the design. Next, combined with the main structural characteristics of injection molding products, the methods to avoid injection molding defects are analyzed.

圖片6.png


1、 Mold opening direction and parting line

At the beginning of each injection product design, the mold opening direction and parting line should be determined first, so as to minimize the influence of the core pulling mechanism and the parting line on the appearance. So pay attention to the key points.

1. After the mold opening direction is determined, the stiffener, buckle, bulge and other structures of the product should be designed to be consistent with the mold opening direction as far as possible, so as to avoid core pulling, reduce the suture, and extend the service life of the mold.

2. For example, the mold opening direction of the bumper is generally the body coordinates χ If the mold opening direction is designed as χ If the shafts are inconsistent, the included angle must be indicated in the product drawing.

3. After the mold opening direction is determined, the appropriate parting line can be selected to improve the appearance and performance.


2、 Demoulding slope

1. Proper demoulding slope can avoid product galling. The demoulding slope of smooth surface should be greater than 0.5 degrees, that of fine grained surface should be greater than 1 degree, and that of coarse grained surface should be greater than 1.5 degrees.

2. Proper demoulding slope can avoid damage to the top of the product.

3. When designing products with deep cavity structure, the slope of the outer surface should be less than that of the inner surface, so as to ensure that the mold core does not shift during injection molding, obtain uniform product wall thickness, and ensure the material density and strength of the opening of the product.


3、 Product wall thickness

1. All kinds of plastics have a certain wall thickness range, generally 0.5~4mm. When the wall thickness exceeds 4mm, it will cause problems such as too long cooling time and printing. We should consider changing the structure of the product.

2. Uneven wall thickness will lead to surface reduction.

3. Uneven wall thickness will cause pores and weld marks.


4、 Stiffener

1. Reasonable application of stiffeners can increase the rigidity of products and reduce deformation.

2. The thickness of the stiffener must be less than 1/3 of the product wall thickness, otherwise the surface will be reduced.

Copyright: Shenzhen Zhongyuan Plastic Co., Ltd. | mold processing customized manufacturer. If you want to know the processing price of the factory, how much is it, and which is good, please contact us Yue ICP Bei No. 17060480
主站蜘蛛池模板: 下面一进一出好爽视频| 女人让男人桶30分钟| 黑人玩弄漂亮少妇高潮大叫| 欧美大肥婆bbbww| 99国精品午夜福利视频不卡| 理论片在线电影大全免费观看| 四虎永久在线精品免费一区二区| 男人国产av天堂www麻豆| 激情内射日本一区二区三区| 久久无码人妻一区二区三区| 成人内射国产免费观看| av免费网址在线观看| 国产女人乱子对白av片| 亚洲欧美中文字幕5发布| 亚洲av福利院在线观看| 久本草在线中文字幕亚洲| 六月丁香综合在线视频| 伴郎粗大的内捧猛烈进出第一章| 国产 浪潮av性色四虎| 国产精品久久久久久搜索| 青青久在线视频免费观看| 亚洲精华液一二三产区| 一本一本久久a久久综合精品| 亚洲欧美国产精品专区久久| 性满足bbwbbwbbw| 大乳丰满人妻中文字幕日本| 在线精品国产一区二区三区| 国内少妇高潮嗷嗷叫在线播放| 国产大片内射1区2区| 国产婷婷色一区二区三区在线| 国产精品丝袜久久久久久不卡| 中文字幕人妻第一区| 无码精品久久一区二区三区| 日韩免费无码一区二区三区| 妺妺窝人体色www看人体| 无码夜色一区二区三区| 女人高潮叫床三级视频 | 久久精品第九区免费观看| 黑人大群体交免费视频| 日韩av无码成人无码免费| 中文国产成人精品久久不卡|