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Problem & Solution

Practical answers to common plastic material challenges

11636 questions
Q
Bamboo pattern/melt fracture appears on the surface of heat-resistant polyethylene extruded products (Variant: strengthened measures)
Q
Bottom material pinching/flash of general-purpose polyethylene blow molded products
Q
Uneven cutting end face of general-purpose polyethylene pipes
A
Uneven cutting end face is caused by tool wear or improper cutting parameters, and the tools need to be maintained and the cutting process optimized.
Processing Machinery cutting end face cutting tool cutting speed pipe cooling cutting machine calibration
Q
Cooling system efficiency decline of general-purpose polyethylene extruder
A
The decline in cooling efficiency is caused by insufficient water volume or high water temperature, and the cooling system needs to be improved and the water temperature controlled.
Production & Quality cooling efficiency cooling water flow cooling water temperature water channel scaling cooling water tank
Q
Sizing device failure of general-purpose polyethylene extruder
A
Sizing device failure needs to be solved from three aspects: vacuum system, cooling system, and mold accuracy.
Molding Process sizing device vacuum degree sizing sleeve wear cooling water mold concentricity
Q
Unreasonable die head flow channel design of general-purpose polyethylene extruder
A
The die head flow channel design needs to ensure uniform melt distribution and no stagnation, and the die head needs to be redesigned if necessary.
Production & Quality die head flow channel uniform flow speed land section flow channel dead corner uniform temperature
Q
Ovality of general-purpose polyethylene pipes exceeding the standard
Q
Wall thickness too thin at the mold closing line of general-purpose polyethylene blow molded products
Q
Mechanical properties of general-purpose polyethylene extruded products not up to standard
Q
Excessive gels/gel particles in general-purpose polyethylene extruded products
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