Country for PR: Japan
Contributor: Kyodo News JBN
Wednesday, July 18 2018 - 15:00
Polyplastics Uses Computer-Aided Engineering (CAE) to Forecast Parts Deformation During Production of LCP Connectors
TOKYO, July 18, 2018 /Kyodo JBN- AsiaNet/ --

Polyplastics Co., Ltd., a leading global supplier of engineering 
thermoplastics, is successfully utilizing computer-aided engineering (CAE) 
analysis to forecast parts deformation during the reflow process when 
manufacturing connector parts made of liquid crystal polymer (LCP). These LCP 
connectors are finding growing use in mobile devices such as smartphones and 
switches, along with automotive-related applications.


LCP parts can expand considerably in the high-temperature conditions of the 
reflow process which can have an adverse effect on the flatness of a final 
product. Since heat deformation can cause poor bonding as a result of 
insufficient soldering to the metal terminals, it is important to find ways to 
reduce heat deformation, particularly as the market sees growing demand for 
smaller connectors.  In response, Polyplastics looked to CAE and began 
considering design-stage deformation forecasting for molded articles in the 
reflow process.

LCPs like Polyplastics' LAPEROS (R) resin are characterized by rigid molecular 
structures that are hard to bend, and possess very little of the molecular 
interlocking behavior that is typical of most polymers. As a result, they 
deliver excellent dimensional accuracy and heat resistance, and handle high 
reflow temperatures in the solder bonding process.

Polyplastics has identified three stages of deformation that can be forecasted 
by CAE analysis. These include post-molding initial deformation (warpage), 
at-peak heat deformation mainly due to the effects of thermal expansion plus 
post-molding shrinkage, and post-cooling deformation mainly attributed to the 
effects of thermal shrinkage. 

Polyplastics will continue to work on the development of CAE analysis 
technology to improve its accuracy and expand its range of applicability. 

For more information, visit

LAPEROS (R) is a registered trademark of Polyplastics Co., Ltd. in Japan and 
other countries.

About Polyplastics
Polyplastics Co., Ltd. is a global leader in the development and production of 
engineering thermoplastic solutions. The company's broad product portfolio 
includes POM, polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), 
and liquid crystal polymer (LCP). The company has the largest global market 
share of POM. With more than 50 years of experience, the company is backed by a 
strong global network of R&D, production, and sales resources capable of 
creating advanced solutions for an ever-changing global marketplace. 

SOURCE: Polyplastics Co., Ltd.