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Polycarbonate

English name: Polycarbonate
Proportion: 1.18-1.20 grams/c.c Shrinking rate of shaping: 0.5-0.8% Shaping temperature: 230-320 degrees Centigrade Dry condition : 8 hours for 110-120 degrees Centigrade
Material Performance It is high to assault the intensity. Size stability is good. Colorless and transparent, the coloring is good. Electricity getting insulating able to bear corrosive, kind wear -ability. But the lubricating difference by oneself. Inclined to fracture. The high temperature is easy to hydrolysis. With the dissolving difference of other resin. Suitable for making small part of the instrument , insulating transparent one and shock-resistant part.
Shaping performance

1.Amorphous material , hot stability is good. The shaping temperature range is wide, mobility is bad. Pick up the moisture light, but sensitive to water, must by dry to punish..

2.Melting temperature is high, viscidity is high.

3 Cooling is fast in speed.

4. Temperature should not be too low or too high.

Acrylic
English name :Polymethyl Methacrylate
Proportion:1.18grams/c.c Shrinking rate of shaping:0.5-0.7% Shaping temperature: 160-230≧ Dry condition:4 hours for 70-90≧
Material Performance Excellent clarity, medium impact resistance, low flame resistance.

Suitable for making the transparent insulating part and part general in intensity
Shaping performance

1.Amorphous material . It is great to pick up the moisture , need to be dry. Difficult to resolve.2. In high-pressure should be injected. It is warm to fetch the high material without the defect. In order to increase mobility. Reduce internal stress. Improve the transparency and intensity. It should be bright and clean that the mould pours the systematic surface. The drawing of patterns is large in slope. Have the gas vent at the same time , so as not to bubble
 
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