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Forming characteristics of ABS in plastic mold

Today is November 28, 1919. The time is really passing fast, and the year is going to pass in a blink of an eye. The editor of Dongguan Plastic Mould Factory has really touched this year. Crawling, but I believe that one day will come out of the trough. Today I will introduce the forming characteristics of ABS in plastic molds.

1. ABS is easy to absorb water. It should be dried before molding. Plastic parts with high surface gloss requirements should be preheated and dried for a long time.

2. Medium fluidity, the overflow value is about 0.04 mm.

 3. Wall thickness and melt temperature have little effect on shrinkage and high dimensional accuracy of plastic parts.

4. ABS has low specific heat capacity, high plasticizing efficiency and fast solidification, so the molding cycle is short.

5. The apparent viscosity of ABS has a strong dependence on the shear rate, so most of the mold designs use point gates.

6. When the ejection force is too large or white marks are left on the surface of the plastic part during machining, the demolding slope should be more than 2 °.

7. Welding marks are prone to occur. When designing the mold, care should be taken to minimize the resistance of the pouring system to the material flow.

8. Easy to use high material temperature, high mold temperature, high injection pressure molding. When high precision of plastic parts is required, the mold temperature can be controlled at 50 ~ 60 ° C, and when gloss and heat resistance of plastic parts are emphasized, the mold temperature should be controlled at 60 ~ 80 ° C.

Note: The above information from the Jiezheng mold  finishing  on the Internet, welcome reproduced, indicate the source!


Contact: Mr. Zhang

Phone: 13509005172

Tel: 0769-85394568

Email: jiezhen_tech@163.com

Add: Dongguan Changan Licheng Industrial F building



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