PVC plastic forming four characteristics

PVC plastic forming four characteristics
PVC plastic molding character:
1, amorphous materials, moisture absorption small, poor liquidity. In order to improve the liquidity, prevent the occurrence of bubbles, plastic can dry in advance. Mould casting system should be thick short, gate section is big, can not have blind Angle. Mould should be cooling, chromium plating surface.
2, because its corrosive and liquidity characteristics, had better use of special equipment and mold. All products must according to need to join different kinds and number of additives.
3, extremely easy decomposition, in 200 degrees temperature and steel. Copper contact easier to decompose, decomposition escaping corrosion. Excitant gas. Molding temperature range.
4, the screw injection machine nozzle, aperture is big, in case the blind Angle stagnation expected. Not with set piece, such as a set piece should be preheated.
It is popular in the world today are popular, and also be widely used a synthetic materials. Its global usage in various kinds of synthetic materials in high on the second.
In recent years, PVC plastic board in southeast Asia growth several degrees is particularly significant, thanks to southeast Asian countries have in infrastructure construction of urgent needs. Can production in 3 d surface film of materials, PVC is the most suitable materials. Proportion: 1.38 g/cubic centimeters, molding shrinkage rate: 0.6-1.5%, molding temperature: 160-190 ℃. PVC plastic board the full name is Polyvinylchlorid, ingredient for polyvinyl chloride, bright color, corrosion resistance, durable, due to the increase in manufacturing process of plasticizer, anti-aging agents some toxic auxiliary materials to enhance its heat resistance and toughness, and extendibility, so its products are not for food and medicine.
Features: mechanical performance, excellent electrical performance, acid and alkali resistant force is extremely strong, chemical stability, but softening point low. Suitable for making thin plate, electric wire and cable insulating layer, seals, etc.

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