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How can stretching deformation and brittle fracture be prevented during pipe manufacturing?
Category: Industry News
Release Date: 2026-03-17
Summary: Stretching deformation: occurs when the traction speed exceeds the extrusion speed and the pipe is pulled out before it has cooled sufficiently. Solution: reduce the traction speed to ensure adequate cooling of the pipe in the cooling tank (surface temperature ≤ 40°C), and adjust the synchronization between traction and extrusion.
- Stretching deformation: occurs when the traction speed exceeds the extrusion speed and the pipe is pulled out before it has cooled sufficiently. Solution: reduce the traction speed to ensure adequate cooling of the pipe in the cooling tank (surface temperature ≤ 40°C), and adjust the synchronization between traction and extrusion.
- Brittle fracture of piping: insufficient plasticization of PVC pipes due to inadequate stabilizer addition; internal stresses in PE/PPR pipes caused by rapid cooling during the cooling process; and non-compliant raw material formulations. Solutions: optimize temperature control to ensure uniform plasticization; precisely add stabilizers according to the formulation; implement staged cooling to reduce internal stresses; and replace with qualified raw materials.
Keywords: How can stretching deformation and brittle fracture be prevented during pipe manufacturing?
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2026.03.17
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