What is the typical shrinkage rate of PE extruded pipes?
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During extrusion shaping, the shaping die used for PE should be slightly larger than the specified diameter of the tube. By how much should the diameter of the shaping die be increased?
The shrinkage rate of PE is between 1.5% and 4%, and the diameter of the sizing sleeve is generally 2.5% larger than that of the pipe.
Thank you. The diameter of the sizing sleeve is generally 2.5% larger than the diameter of the pipe. What is the relationship between this dimension and the wall thickness? ?
The wall thickness is adjusted via the die, and it has nothing to do with the sizing sleeve; pipes of the same diameter correspond to sizing sleeves of the same size.