Problem & Solution

Q

Insufficient impact strength of general-purpose polyethylene injection molded products

A

Insufficient impact strength is usually caused by excessive internal stress or material degradation, and needs to be addressed from temperature parameters, drying, and regrind control.

Material Drying impact strength internal stress molecular orientation material degradation regrind control

Q

General-purpose polyethylene injection molded products surface bubbles/voids

A

Bubbles and voids are mainly caused by moisture vaporization, gas entrainment or insufficient feeding, and need to be systematically solved from raw '2079851475616104451, injection process and holding pressure parameters.

Material Drying bubblesvoidsraw '2079851475616104451holding pressuremulti-stage injection

Q

General-purpose polyethylene injection molded products surface silver streaks/material streaks

A

Silver streaks are mainly caused by moisture in the raw material, thermal degradation or poor venting, requiring systematic investigation from three aspects: raw '2079851475616104451, temperature control and mold venting.

Material Drying silver streaksmaterial streaksraw '2079851475616104451thermal degradationmold venting

Q

General-purpose polyethylene injection molded products surface bubbles/voids（Variant: Strengthened Measures）

A

Bubbles and voids are mainly caused by moisture vaporization, gas entrainment or insufficient feeding, and need to be systematically solved from raw '2079851475616104451, injection process and holding pressure parameters.Targeted preventive measures need to be taken in different production scenar...

Material Drying bubblesvoidsraw '2079851475616104451holding pressuremulti-stage injection

Q

General-purpose polyethylene injection molded products surface silver streaks/material streaks（Variant: Strengthened Measures）

A

Silver streaks are mainly caused by moisture in the raw material, thermal degradation or poor venting, requiring systematic investigation from three aspects: raw '2079851475616104451, temperature control and mold venting.Targeted preventive measures need to be taken in different production scenar...

Material Drying silver streaksmaterial streaksraw '2079851475616104451thermal degradationmold venting

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene improper production environment control during processing

A

The production environment is an important factor affecting processing quality, requiring the establishment of a sound environmental control system.

Material Drying environmental controlworkshop temperaturehumiditycooling water temperatureprocess stability

Q

Metallocene linear low density polyethylene metallocene linear low density polyethylene defects caused by insufficient drying before processing

A

Insufficient drying is a common root cause of processing defects, requiring the establishment of a sound drying system and moisture content testing system.

Material Drying raw '2079851475616104451moisture contentsilver streaksbubblesdehumidifying drying

Q

Improper production environment control during metallocene linear low-density polyethylene metallocene linear low-density polyethylene processing (variant: seasonal change scenario)

A

The production environment is an important factor affecting processing quality; a complete environmental control system needs to be established. In different production scenarios, targeted preventive measures need to be taken.

Material Drying environmental controlworkshop temperaturehumiditycooling water temperatureprocess stability

Q

Improper production environment control during metallocene linear low-density polyethylene metallocene linear low-density polyethylene processing (variant: startup commissioning scenario)

A

The production environment is an important factor affecting processing quality; a complete environmental control system needs to be established. In different production scenarios, targeted preventive measures need to be taken.

Material Drying environmental controlworkshop temperaturehumiditycooling water temperatureprocess stability

Q

Improper production environment control during metallocene linear low-density polyethylene metallocene linear low-density polyethylene processing (variant: strengthened measures)

A

The production environment is an important factor affecting processing quality; a complete environmental control system needs to be established. In different production scenarios, targeted preventive measures need to be taken.

Material Drying environmental controlworkshop temperaturehumiditycooling water temperatureprocess stability

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