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Problem & Solution

Practical answers to common plastic material challenges

11636 questions
Q
Excessive shrinkage rate of low density polyethylene extruded products
Q
Die head pressure fluctuation of low density polyethylene extruder
Q
Rough inner and outer walls of low density polyethylene pipes
Q
Haul-off speed mismatch of low density polyethylene extruded products
A
Haul-off speed mismatch needs to be solved by precisely adjusting haul-off parameters and ensuring haul-off stability.
Extrusion & Post haul-off speedspeed matchinghaul-off slippingclamping forcehaul-off control
Q
Wide temperature window of low density polyethylene PE raw material causing process parameter optimization difficulty
A
PE temperature window optimization needs to be advanced from two aspects: systematic experiments and experience accumulation.
Processing Machinery temperature optimizationPE gradeDOEprocess parameterstemperature database
Q
Poor printability of low density polyethylene film
Q
Longitudinal reversion of low density polyethylene pipes exceeding standard
Q
Frequent screen change/short filter screen life of low density polyethylene extruder
Q
Insufficient heat seal strength of 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
Q
Unstable output/surging in low density polyethylene extrusion process
A
Unstable output is caused by unstable solids conveying; barrel temperature and feeding system need to be optimized.
Extrusion & Post unstable outputsurgingsolids conveyinghopper bridgingscrew rotation speed
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