The product must now be cooled which is usually achieved by pulling the extrudate through a water bath. Plastics are excellent thermal insulators and are therefore very difficult to cool quickly. Compared with steel, plastic conducts its heat away 2000 times more slowly. In a tube or pipe extrusion line, a sealed water bath utilizes a carefully controlled vacuum to keep the newly formed and still molten tube or pipe from collapsing. A set of cooling rollers is generally used in the sheet extrusion process to cool sheet as it exits the extruder.
2. Product specification of plastic pipe and profile.
|
Material |
Polycarbonate |
|
Size |
34 mm wide |
|
color |
clear, semi-clear, opal |
|
design |
Standard size or custom made sizes |
|
Length |
From 0.5meter to 5 meters length |
|
packing |
Carton packing or wooden box packing |
Applications:
Led Lighting cover/lens.
Electronic components.
Construction material.
4. Product pictures:
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