2018年6月8日 星期五

Plastics Shrinkage Rate & Mold Shrinkage Rate

 Plastics Shrinkage Rate & Mold Shrinkage Rate

It is very important for each product design to know the plastics shrinkage rate. So that when he designs his parts design, he can present the right scale size of the drawing to mold  manufacturing factory like Intertech.

Meanwhile, the mold shrinkaged rate provides good information for production injection molding factory for calculating the final finished product size to be stablized in final shape.


http://www.taiwanmoldmaker.com/ 
http://www.intertech.net.tw/ 
https://intertech.en.taiwantrade.com/



                                    Plastics Shrinkage Rate 
General Plastics
Shrinkage Rate (%)
Raw Material 
Add. 30% GF
LDPE
2.0
0.5
HDPE
2.0
0.4
PP
1.8
0.4
PS
0.6
0.1
PVC
0.4
0.1
PMMA
0.5
0.1
ABS
0.6
0.1
Engineering Plastics
       Shrinkage Rate (%)
 
Raw Material 
Add. 30% GF
NY6
1.5
0.4
NY66
1.5
0.4
PBT
2.0
0.4
POM
2.5
0.5
PC
0.6
0.1
PPO
0.6
0.1

                                   Mold Shrinkage Rate 
PlasticsGlass Fiber AddingMold Shrinkage Rate 
[%][%]
PS 0.3-0.6
HI-PS 0.5-0.6
SAN 0.5-0.7
ABS 0.4-0.7
ASA 0.4-0.6
LDPE 1.5-5.0
HDPE 1.5-3.0
PP 1.0-2.5
PP+GF300.5-1.2
PVC-soft >0.5
PVC-rigid 0.5
PVDF 3.0-6.0
PMMA 0.1-0.8
POM1.9-2.3
PPO 0.5-0.7
PPO+GF30<0.7
CA 0.5
PC 0.8
PC+GF10~300.15-0.55
PBT 1.5-2.5
PBT+GF30-500.3-1.2
PA6 0.5-2.2
PA6+GF30~500.3-1
PA66 0.5-2.2
PA66+GF30~500.5-1.5
PA11 0.5-1.5
PA12 0.5-1.5
PPS400.2

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