Precautions for the production process and construction of PVC pipes
Precautions for the production process and construction of PVC pipes1. Production process raw material + auxiliary preparation → mixing → conveying and feeding → forced feeding → conical twin screw extruder → extrusion die → sizing sleeve → spray vacuum setting box → immersion cooling water tank → ink printing machine → Crawler tractor → knife cutting machine → pipe stacking frame → finished product testing and packaging.
2. The wall of the PVC pipe must not have air holes and cracks, nor can there be boundary discoloration lines and obvious impurities. Such pipes may have large quality problems, causing serious hidden dangers.
3. The color and luster should be consistent in the choice of installation.
4. The specification of PVC pipe structure should meet the specified size, and it should not exceed 0.03% deviation of the rated specification.
5. The deviation of the wall of the same section should not exceed 0.12%, even small deviations may cause serious consequences.
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