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Q

Silver Streaks/Material Flowers Appearing on the Surface of Low-Density Polyethylene Injection Molded Products (Variant: Strengthened Measures)

A

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

Material Drying silver streakmaterial flowerraw '2079851475616104451thermal degradationmold venting

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Q

Rough Inner and Outer Walls of High-Density Polyethylene Pipes

A

Rough pipe walls are caused by low mold temperature or poor surface condition, and need to be solved from temperature control and mold maintenance.

Material Drying rough pipe walldie temperaturemandrel temperaturemold polishingsizing sleeve

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Q

Improper Production Environment Control During Processing of High-Density Polyethylene High-Density Polyethylene

A

The production environment is an important factor affecting processing quality, and a complete environmental control system needs to be established.

Material Drying environment controlworkshop temperaturehumiditycooling water temperatureprocess stability

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Q

Defects Caused by Insufficient Drying Before Processing of High-Density Polyethylene High-Density Polyethylene

A

Insufficient drying is a common root cause of processing defects, and a complete drying system and moisture content detection system need to be established.

Material Drying raw '2079851475616104451moisture contentsilver streakbubblesdehumidifying drying

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Q

Bubbles/Pores on the Surface of High-Density Polyethylene Extruded Products

A

Bubbles are caused by water vaporization or gas entrainment, and need to be solved from raw '2079851475616104451 and the venting system.

Material Drying bubblesporesraw '2079851475616104451ventingvolatiles

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Q

Product Defects Caused by Excessive Moisture Content of High-Density Polyethylene Raw Material

A

Excessive moisture content of the raw material is solved by full drying, and a sound drying and storage management system needs to be established.

Material Drying moisture contentdryingsilver streakbubblemoisture-proof storage

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Q

Insufficient Impact Strength of High-Density 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 strengthinternal stressmolecular orientationmaterial degradationregrind control

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Q

Bubbles/Voids Appearing on the Surface of High-Density Polyethylene Injection-Molded Products

A

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

Material Drying bubblevoidraw '2079851475616104451holding pressuremulti-stage injection

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Q

Silver Streaks/Material Flow Marks on the Surface of High-Density Polyethylene Injection-Molded Products

A

Silver streaks are mainly caused by moisture in the raw material, thermal degradation, or poor venting, and need to be systematically investigated from three aspects: raw '2079851475616104451, temperature control, and mold venting.

Material Drying silver streakmaterial flow markraw '2079851475616104451thermal degradationmold venting

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Q

Silver Streaks/Material Flow Marks on the Surface of High-Density Polyethylene Injection-Molded Products (Variant: Strengthened Measures)

A

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

Material Drying silver streakmaterial flow markraw '2079851475616104451thermal degradationmold venting

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