The identification method and process of PVC plastic pipe production line

The process of PVC plastic pipe production line: raw materials + additives → the mixing → loading material → Forced Feeding → conical twin-screw extruder → extrusion mould → the sizing sets → spray vacuum calibration tank → soak cooling water tank→ printing inker→ caterpillar tractor→ cutting machine → pipe stacking frame → testing and packaging

PVC is widely used and produced by a growth rate of 4% in the worldwide, especially in Southeast Asia where they have pressing needs of infrastructure construction. PVC is the most suitable material in the three-dimensional surface film. And PVC can be divided into soft PVC and rigid PVC. Soft PVC is generally used for floors, ceilings and leather surface. The soft PVC is easily brittle and difficult to preserve because of oftener (which is the difference between soft PVC and rigid PVC, so its use has been limited. However Hard PVC has the good flexibility, easy to shape, not brittlement, non-toxic and non-polluting, preserved for a long time. Therefore the hard PVC has great application value. PVC is essentially a vacuum plastic film for the packaging of various types of panel surface, which is also known as the decorative film and coating film used in building materials, packaging, pharmaceutical and many other industries. Building materials industry accounts for the largest proportion, 60%, followed by packaging industry.

How to distinguish the good or bad PVC pipe:

1, you look at the smoothness and whiteness on the surface firstly.

2, cast samples. The pipe is easy to break, which generally contains high calcium. Of course, it is suitable for me to meet you the price.

3, step on the edge of the pipe to see whether it is cracking elongation at break or not. (Generally go to trial and you have to keep good relationship with sellers. Otherwise they can not let you step on)

4, the weather is very troublesome. You can place pipes in the high temperature and highlight for a few days to see the changing rate on the surface surf, but it is a waste of time. (end )