Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

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Mechanical properties of linear low-density polyethylene extruded products not meeting standards (variant: strengthened measures)

Mechanical properties not meeting standards are caused by material degradation or poor processing quality and need to be solved from temperature control and plasticization quality. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery mechanical propertiesmaterial degradationplasticization qualitycrystallinityregrind proportion

Excessive gel/gel particles in linear low-density polyethylene extruded products (variant: strengthened measures)

Gel is caused by insufficient plasticization or raw material quality problems and needs to be solved from temperature control, screw design and raw material selection. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery gelgel particleplasticizing temperaturescrew mixingscreen mesh count

Large current fluctuation of linear low-density polyethylene extruder (variant: strengthened measures)

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. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery current fluctuationscrew torqueplasticizing temperatureraw material impuritiesscreen clogging

Linear low-density polyethylene pipe failing pressure test (variant: strengthened measures)

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. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery pressure testpipe wall thicknessmaterial degradationcrystallinityplasticization quality

Poor plasticization caused by screw wear of linear low-density polyethylene extruder (variant: strengthened measures)

Screw wear reduces plasticization efficiency and needs to be solved by selecting wear-resistant materials and regular maintenance. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery screw wearpoor plasticizationwear-resistant materialscrew clearancescrew speed

Large barrel temperature fluctuation during linear low-density polyethylene linear low-density polyethylene processing (variant: strengthened measures)

Barrel temperature fluctuation is caused by heating or temperature control system failures; heating bands, thermocouples and temperature control instruments need regular inspection and maintenance. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery temperature fluctuationheating bandthermocoupletemperature control instrumentPID parameters

Insufficient strength of linear low-density polyethylene film (variant: strengthened measures)

Insufficient film strength is caused by improper material selection or process parameters and needs to be optimized from raw material, temperature and blow-up ratio. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery film strengthMFRblow-up ratiodraw ratiomaterial degradation

Linear low-density polyethylene PE raw material has a wide temperature window, making process parameter optimization difficult (variant: strengthened measures)

PE temperature window optimization needs to be advanced from two aspects: systematic experiments and experience accumulation. In different production scenarios, targeted preventive measures need to be taken.

Processing Machinery temperature optimizationPE gradeDOEprocess parameterstemperature database

Frequent screen change/short filter screen life of linear low density polyethylene extruder (Variant: strengthened measures)

Frequent filter screen clogging is caused by raw material impurities or improper process; it needs to be solved from raw material management and temperature control. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery filter screenimpuritiescarbidesbarrel temperaturescreen change frequency

Insufficient heat seal strength of linear low density polyethylene film (Variant: strengthened measures)

Insufficient heat seal strength is caused by improper temperature, pressure, or time settings; heat seal process parameters need to be optimized. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery heat seal strengthheat seal temperatureheat seal pressurefilm thicknessheat seal material

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