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Ovality of Polypropylene Pipe Exceeding the Standard

Excessive ovality is caused by uneven cooling or external force deformation, and needs to be solved from cooling uniformity and pipe storage.

Extrusion & Post ovalityuniform coolingsizing sleevehaul-off clampingpipe storage

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Bending Deformation of Polypropylene Extruded Pipe

Pipe bending is caused by non-uniform cooling or haul-off eccentricity, and needs to be solved from cooling uniformity and equipment alignment.

Extrusion & Post pipe bendinguneven coolinghaul-off alignmentuniform wall thicknessstraightness

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Uneven Thickness of Polypropylene Cast Film

Uneven cast film thickness is caused by uneven die gap or temperature, and needs to be solved from mold precision and temperature uniformity.

Extrusion & Post cast filmuneven thicknessT-dielip gapair knife

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Blocking/Poor Opening of Polypropylene Film

Film blocking is caused by surface tension and temperature, and needs to be solved by adding an anti-blocking agent and controlling the winding conditions.

Extrusion & Post film blockinganti-blocking agentwinding temperaturewinding tensionslip agent

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Wrinkles Appearing in Polypropylene Blown Film

Wrinkles are caused by uneven thickness or unbalanced haul-off, and need to be solved from thickness control, haul-off, and collapsing frame adjustment.

Extrusion & Post film wrinkleuneven thicknesshaul-off rollercollapsing framecooling line

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Die Marks/Lines on Polypropylene Extruded Products

Die marks are caused by damage to the inner wall of the die or impurities; the die needs to be cleaned and checked regularly.

Extrusion & Post die markdie scratchimpurity cleaningflow channel designfilter screen

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Uneven Thickness of Polypropylene Blown Film

Uneven film thickness is caused by uneven die gap, temperature, or cooling, and needs to be solved from mold precision and process stability.

Extrusion & Post film thicknessdie gaptemperature uniformityair ring coolinghaul-off stability

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Poor Transparency of Polypropylene Blown Film

Poor transparency is caused by high crystallinity or impurities, and needs to be improved by increasing the temperature, accelerating cooling, and selecting suitable materials.

Extrusion & Post poor transparencycrystallinitycooling ratenucleating agenthaze

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Process Connection Problem When Switching Between Different Processing Methods of Polypropylene

Transition connection requires advance planning and full preparation; the key is to clarify the differentiated requirements of different processing methods for materials.

Extrusion & Post production transitionprocessing methodprocess parametersmaterial gradetrial production verification

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Excessive Shrinkage of Polypropylene Extruded Products

Excessive shrinkage is caused by high crystallinity or high temperature, and needs to be solved by controlling the temperature and cooling rate.

Extrusion & Post shrinkagecrystallinitymelt temperaturecooling ratehaul-off speed

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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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