tpe \ tpr why in the injection molding products appear black spots and solutions.-TPE,TPU raw material manufacturer-Guangdong SPP New Material Co., Ltd.

Language
- 中文版
- English

Home page

tpe \ tpr why in the injection molding products appear black spots and solutions.

Time of issue:2022-10-31

tpe \ tpr why in the injection molding products appear black spots and solutions.

　　1: melt overheating coking, injection speed is too high, for small gates melt will be degraded due to shear heat generation and degradation, and make the product appear black spots.

　　TPE/TPR injection molding defect problem solutions; can reduce the barrel temperature, adjust to reduce the injection speed, screw speed, back pressure, etc..

　　2: dissolved material in the barrel or mold runner stay too long, and make the products appear black spots.

　　Solutions to TPE/TPR injection molding defect problems.

　　Adjust the injection cycle, check the mold runner, screw, over rubber head, over rubber ring, flange inner wall and other parts of the mold for coked rubber adhesion, if so, it needs to be cleaned.

　　3: The raw material infiltrates impurities and is contaminated, which makes the products appear black spots.

　　TPE/TPR injection molding defect solutions; check whether there are impurities in raw materials, pollution, if so, need to clean up.

TPE / TPR get samples will be how to test

Advantages and performance of TPE/TPR

Business License

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

TEL: +86-0752-6768128 FAX: +86-0752-6768088 MAIL: sales@tpe-sp.com WEB: en.tpe-sp.com

ADD: Huangxi Industrial Park, Shiwan Town, Boluo County, Huizhou City, Guangdong Province，China