美美女毛片-美女 裸 色 射视频-美女18禁喷水一区二区免费看-美女AV写真电影一区二区三区-美女A片黄-美女A片网站

Technical Support
Technical Support
FAQ

      Some common problems in electronic waterproof protection technology are listed below for reference. Due to the influence of various factors such as the requirements of product structure and use environment in the actual application process, the problems encountered and corresponding solutions are also different. For any technical support, please contact us.

What the Benefits of Low Pressure Molding?

LPM can over-mold extensively products and enhance product performance.LPM technology benefits mainly reveal in two aspects below: 

Product Performance

  • Environmentally friendly (RoHS).

  • Water-proof. 

  • Electrical insulation.

  • Mechanical protection from impact. 

  • Resistance to temperature (UL94 V-0).

  • Resistance to Chemical. 

Production

  • Simplify the process, enhance productivity.

  • Shorten the development cycle, reduce the R&D cost.

  • Save production space.

  • No hazardous materials during production.

  • Thermoplastic no cure time and increased reliability.

  • Molds design flexibility.

What is the Application of Low Pressure Molding?

     Low pressure molding technology can be applied to wide range of industries and any unique product that needs to be sealed and protected against the environment such as PCB, automotive electronics, automotive wire, connector, sensor, micro switch etc.

     More Application details: http://m.jiagugc88.cn/q_case/img.php?lang=en&class1=329

What is different between Low pressure molding and Traditional molding?

      LPMS selects high performance hot-melt adhesive, which has excellent mobility. The adhesive takes very small pressure to make it flow to mold, therefore, the products successfully over-molded without causing any harm in the process, greatly reducing the defect product.


PA Hot melt LPM

Traditional molding

Material

PA Hot melt resin

ABS、PBT、PP

Injection pressure

1.5~40 bar

350~1,300 bar

Injection temperature

190~230℃

230~300℃

Clamping force

1 Ton

Over 50 Tons

Mould material

Steel and aluminum

Only steel

Damage to the mold

No damage

Wear and tear

Injection machine

Air cylinder driven

Hydraulic driven

What is different between Low Pressure Molding and Epoxy Potting?


PA Hot melt LPM

Epoxy molding

Case

Need

Meed case

Working temperature

-70~150℃

180℃

Housing

No need housing

Need housing

Cycle time

2-60 seconds

Chemical reaction needs 24 hours

density

0.98

Above 1.2

Curing

Much less curing time

Need curing

Working space

Occupy less space

Occupy large space

Energy consumption

Low

High

Resin consumption

Less

Much more

Process

Simple

Complex

Vacuum pumping

No need

Need 

How much is the shrinkage rate of material after low pressure injection molding?

       Low pressure molding material’s shrinkage rate is slightly lower than  traditional molding material. Low pressure molding contraction ranges between 1%~1.5%. It depends on materials.

How to avoid air bubbles in the product?

  • Mold structure design, such as increasing the exhaust inserts, the way of injection.

  • Mold DFM.

  • For larger injection volume products, we might design multiple injection to avoid it.

  • Using transparent resin to test and adjust molding parameters through mold trial and small production of the samples.

Leave a Message
If you have any problems of waterproof for electronic products, please fill in the following form. Our professional team will contact you and provide you with the waterproof solution for electronic products。
主站蜘蛛池模板: 久久久久久91香蕉国产 | 苍井空无码视频 | 国产91精品高潮白浆喷水 | 黃色A片三級三級三級免费看吞精 | 日韩精品无码一区AAA片 | 免费在线观看的黄色网址 | 亚洲区在线 | 国产精品久久久久久久果冻 | 午夜精品久久久久久久久噜噜 | 精品人妻一区二区三区浪潮无限 | 日韩免费视频网站 | 国产又粗又猛又爽又黄 | 色欲av亚洲一区无码少妇 | 人妻熟妇国产乱码精品精 | 偷拍精品一区 | 黄色无码网站 | 全部裸体做爰大片免费看网站 | 午夜精品久久久久久久爽 | 精品国产伦子伦免费看 | 亚洲午夜在线视频 | 日韩中文字幕有码 | 美国发布站久久 | 乐播AV一区二区三区在线观 | 亚洲午夜精品网络视频 | 99精品久久久久久中文字幕 | 国内精选免费大片在线观看 | 国产AV日韩AV | 潮吹喷水在线 | 无码免费淫AV片在线观看 | 人妻精品一区二区在线 | 日韩无码一级片 | 久久中文无码 | 无码AV在线免费观看 | 黑人国产精品成人无码A片在线观 | 伊人网综合在线 | 91 蝌蚪老熟女| 91人妻人人操 | 国产无套内精一级毛片农民工 | 亚洲午夜免费视频 | 国產乱婬片A片AAAAPp地址 | 亚洲一区二区三区乱码 |