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Glossless surface of heat-resistant polyethylene extruded products

Surface glosslessness is caused by low die temperature or too fast cooling, and the die temperature needs to be increased and cooling slowed down.

Material Analysis glosslessnessdie temperaturecooling ratedie polishingmelt temperature

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Heat-resistant polyethylene PPR pipe welded joint leakage

PPR welded joint leakage is caused by improper welding parameters or contamination of the welding surface, and welding temperature, time and cleanliness need to be strictly controlled.

Material Analysis PPR weldinghot-melt weldingwelding temperaturewelding timepipe fitting matching

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Mechanical properties of general-purpose polyethylene extruded products not up to standard

Mechanical properties not up to standard are caused by material degradation or poor processing quality, and need to be solved from temperature control and plasticization quality.

Material Analysis mechanical properties material degradation plasticization quality crystallinity regrind ratio

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Glossless surface of general-purpose polyethylene extruded products

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.

Material Analysis glossless die temperature cooling rate die polishing melt temperature

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Excessive regrind ratio of general-purpose polyethylene causing performance decline

The performance decline of regrind is the result of heat history accumulation, and the regrind ratio and number of uses need to be strictly controlled.

Material Analysis regrind molecular weight decrease antioxidant regrind ratio heat history

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Welding joint leakage of general-purpose polyethylene PPR pipes

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.

Material Analysis PPR welding hot melt welding welding temperature welding time fitting matching

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Large performance differences between different batches of general-purpose polyethylene raw materials

Batch differences are caused by fluctuations in raw material production, and a sound incoming inspection and batch management system needs to be established.

Material Analysis batch difference melt flow rate incoming inspection batch management process adjustment

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Metallocene linear low density polyethylene film insufficient strength

Insufficient film strength is caused by improper material selection or process parameters, requiring optimization from raw material, temperature and blow-up ratio.

Material Analysis film strengthMFRblow-up ratiodraw ratiomaterial degradation

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Metallocene linear low density polyethylene film insufficient heat seal strength

Insufficient heat seal strength is caused by improper temperature, pressure or time settings, requiring optimization of heat sealing process parameters.

Material Analysis heat seal strengthheat sealing temperatureheat sealing pressurefilm thicknessheat seal material

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Mechanical properties of linear low-density polyethylene extruded products not meeting standards

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.

Material Analysis mechanical propertiesmaterial degradationplasticization qualitycrystallinityregrind proportion

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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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