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Heat-resistant polyethylene extruded products show degradation discoloration (Variant: mass production scenario)

Degradation discoloration is caused by overheating or excessive shear, and needs to be prevented from the three aspects of temperature control, rotation speed and material selection. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery degradation discolorationthermal degradationscrew rotation speedresidence timeantioxidant

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Glossless surface of heat-resistant polyethylene extruded products (Variant: strengthened measures)

Glossless surface is caused by low die temperature or too fast cooling, and the die temperature needs to be increased and the cooling slowed down. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery glossless die temperature cooling rate die polishing melt temperature

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Rough inner wall of heat-resistant polyethylene extruded products (Variant: strengthened measures)

Rough inner wall is caused by low mandrel temperature or poor surface condition, and needs to be solved from temperature control and mold maintenance. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery rough inner wall mandrel temperature mandrel polishing melt temperature plasticization quality

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Degradation discoloration of heat-resistant polyethylene extruded products (Variant: strengthened measures)

Degradation discoloration is caused by overheating or excessive shear, and needs to be prevented from three aspects: temperature control, speed, and material selection. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery degradation discoloration thermal degradation screw speed residence time antioxidant

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Improper selection of the processing temperature window for heat-resistant polyethylene heat-resistant polyethylene (Variant: strengthened measures)

The selection of the temperature window is the basis of processing, and needs to be reasonably set according to the material characteristics and actual operating experience. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery processing temperature temperature window plasticization quality material degradation temperature calibration

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Welding joint leakage of heat-resistant polyethylene PPR pipes (Variant: strengthened measures)

PPR welding joint leakage is caused by improper welding parameters or welding surface contamination, and the welding temperature, time, and cleanliness need to be strictly controlled. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery PPR welding hot melt welding welding temperature welding time fitting matching

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Uneven cutting end face of general-purpose polyethylene pipes

Uneven cutting end face is caused by tool wear or improper cutting parameters, and the tools need to be maintained and the cutting process optimized.

Processing Machinery cutting end face cutting tool cutting speed pipe cooling cutting machine calibration

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Excessive gels/gel particles in general-purpose polyethylene extruded products

Gels are caused by insufficient plasticization or raw material quality problems, and need to be solved from temperature control, screw design, and raw material selection.

Processing Machinery gel gel particle plasticizing temperature screw mixing filter screen mesh

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General-purpose polyethylene pipe pressure test failed

Pressure test failure is caused by insufficient wall thickness, material degradation, or internal defects, and needs to be systematically solved from process and material quality.

Processing Machinery pressure test pipe wall thickness material degradation crystallinity plasticization quality

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Large current fluctuation of general-purpose polyethylene extruder

Current fluctuation is caused by large plasticizing resistance or equipment problems, and needs to be solved from temperature control, raw material purity, and equipment maintenance.

Processing Machinery current fluctuation screw torque plasticizing temperature raw material impurities filter screen blockage

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Tüm Konular 11636 Material Drying 1439 Injection Molding 1506 Molding Process 740 Molds & Tooling 1506 Processing Machinery 2025 Extrusion & Post 2239 Blow Molding 315 Thermoforming 141 Material Analysis 1343 Production & Quality 382

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