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11636 soru
Q
Excessive shrinkage of linear low-density polyethylene extruded products
A
Excessive shrinkage is caused by high crystallinity or high temperature and needs to be solved by controlling temperature and cooling rate.
Extrusion & Post shrinkage ratecrystallinitymelt temperaturecooling ratehaul-off speed
9 görüntüleme
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Q
Linear low-density polyethylene PE raw material has a wide temperature window, making process parameter optimization difficult
A
PE temperature window optimization needs to be advanced from two aspects: systematic experiments and experience accumulation.
Processing Machinery temperature optimizationPE gradeDOEprocess parameterstemperature database
9 görüntüleme
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Q
Frequent screen change/short screen life of linear low-density polyethylene extruder
Q
Poor printability of linear low-density polyethylene film
Q
Longitudinal retraction rate of linear low-density polyethylene pipes exceeding standard
A
Excessive retraction rate is caused by large internal stress or excessive orientation and needs to be solved from temperature control, cooling rate and haul-off speed.
Extrusion & Post longitudinal retraction rateinternal stresscooling ratehaul-off speedmolecular orientation
9 görüntüleme
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Q
Insufficient heat seal strength of linear low-density polyethylene film
A
Insufficient heat seal strength is caused by improper temperature, pressure or time settings; heat seal process parameters need to be optimized.
Material Analysis heat seal strengthheat seal temperatureheat seal pressurefilm thicknessheat seal material
16 görüntüleme
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Q
Unstable output/surging in the linear low-density polyethylene extrusion process
A
Unstable output is caused by unstable solid conveying; barrel temperature and the feeding system need to be optimized.
Extrusion & Post unstable outputsurgingsolid conveyinghopper bridgingscrew speed
9 görüntüleme
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Q
Dimensional fluctuation of linear low-density polyethylene extruded products
A
Dimensional fluctuation is caused by unstable extrusion or haul-off; all process parameters need to be systematically stabilized.
Extrusion & Post dimensional fluctuationscrew speedhaul-off speedtemperature stabilityuniform feeding
9 görüntüleme
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Q
Non-glossy surface of linear low-density polyethylene extruded products
A
A non-glossy surface is caused by low die temperature or too fast cooling; die temperature needs to be increased and cooling slowed.
Material Analysis non-glossydie temperaturecooling ratedie polishingmelt temperature
16 görüntüleme
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Q
Improper production environment control during linear low-density polyethylene linear low-density polyethylene processing
A
The production environment is an important factor affecting processing quality; a complete environmental control system needs to be established.
Material Drying environmental controlworkshop temperaturehumiditycooling water temperatureprocess stability
9 görüntüleme
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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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