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Yaygın plastik malzeme zorluklarına pratik yanıtlar

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Melt flow rate mismatch of raw material for polyolefin plastomer extrusion (Variant: strengthened measures)

MFR mismatch needs to be solved by selecting suitable grades and adjusting temperature parameters. Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post melt flow rategrade selectionextrusion gradeprocess adjustmentbatch detection

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Uneven wall thickness of polyolefin plastomer extruded pipes (Variant: strengthened measures)

Uneven wall thickness is caused by uneven die gap or uneven temperature, and needs to be solved from mold accuracy and temperature uniformity. Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post uneven wall thicknessdie concentricitytemperature uniformityhaul-off stabilitysizing sleeve

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Improper processing temperature window selection of polyolefin plastomer polyolefin plastomer (Variant: strengthened measures)

Temperature window selection is the basis of processing and needs to be set reasonably according to material characteristics and actual operating experience. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery processing temperaturetemperature windowplasticizing qualitymaterial degradationtemperature calibration

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Insufficient long-term hydrostatic strength of polyolefin plastomer PPR pipes (Variant: strengthened measures)

Insufficient long-term hydrostatic strength is caused by material selection and processing quality, and needs to be comprehensively controlled from raw materials, process and welding. Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post hydrostatic strengthPPRmolecular weightpipe wall thicknesscrystallinity

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Polyolefin plastomer PPR pipe welded joint leakage (Variant: strengthened measures)

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. Targeted preventive measures need to be taken in different production scenarios.

Processing Machinery PPR weldinghot-melt weldingwelding temperaturewelding timepipe fitting matching

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Sharkskin appears on the surface of polyolefin plastomer extruded products (Variant: strengthened measures)

Sharkskin is the result of stick-slip flow of the melt at the die exit, and is improved by increasing the die temperature and reducing the extrusion speed. Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post sharkskinmelt fracturedie temperatureextrusion speeddie polishing

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Bamboo-node pattern/melt fracture appears on the surface of polyolefin plastomer extruded products (Variant: strengthened measures)

Melt fracture is flow instability caused by extrusion speed exceeding the critical value, and the speed needs to be reduced, the temperature increased and the die design optimized. Targeted preventive measures need to be taken in different production scenarios.

Extrusion & Post melt fracturebamboo-node patterncritical shear ratedie temperatureextrusion speed

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Uneven cutting end face of heat-resistant polyethylene pipes

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

Processing Machinery cutting end facecutting toolcutting speedpipe coolingcutting machine calibration

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Decreased cooling system efficiency of heat-resistant polyethylene extruder

Decreased cooling efficiency is caused by insufficient water volume or too high water temperature, and the cooling system needs to be improved and water temperature controlled.

Production & Quality cooling efficiencycooling water flowcooling water temperaturewater circuit scalingcooling water tank

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Sizing device failure of heat-resistant polyethylene extruder

Sizing device failure needs to be solved from the three aspects of vacuum system, cooling system and mold accuracy.

Molding Process sizing devicevacuum degreesizing sleeve wearcooling watermold concentricity

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Kategoriler

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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