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Q

PEEK Silver Streaks Misdiagnosed as a Drying Problem

A

PEEK silver streaks are the defect with the highest clinical misdiagnosis rate; when moisture is qualified, immediately turn to nozzle inspection; nozzle carbon deposits form in just a few hours, and regular disassembly inspection is necessary maintenance for high-temperature materials.

Material Drying PEEK；silver streak；nozzle；carbon deposit；cold spot；misdiagnosis

Q

Silver Streaks Caused by Insufficient Drying of PEEK

A

PEEK silver streak investigation should follow the order of moisture first, equipment second; drying is the lowest-cost defect prevention means; moisture content verification should be incorporated into the first-article inspection process of each shift, avoiding judgment based on experience.

Material Drying PEEK；silver streak；drying；moisture；hydrolysis；150℃

Q

Sink Marks of PE Injection Molded Products (Thick-Wall Type)

A

For PE thick-wall sink marks, 'structural material reduction first': solid thick blocks are a breeding ground for sink marks, and material reduction is more effective than piling on holding pressure; large thick blocks should be avoided at the design stage of thick-wall PE parts.

Injection Molding PE；sink mark；thick wall；material reduction；gate freeze-off

Q

Warpage of PE Injection Molded Products (Ejection-Induced)

A

PE ejection deformation = 'insufficient cooling + uneven ejection': ejecting only after thorough cooling and balanced ejection are the principles; deformation caused by ejection is often misjudged as warpage from uneven cooling — pay attention to the distinction.

Injection Molding PE；ejection deformation；cooling；ejector pin；warpage

Q

Cutting and Welding Problems of PE Pipe

A

Cutting and welding of PE pipe is 'the back-end process determines success or failure': saw blade and synchronization govern cutting, end-face treatment and parameters govern welding; weld strength = end-face treatment + parameter standardization.

Molding Process PE；pipe；cutting；hot-melt welding；weld seam

Q

Material Buildup on the Sizing Sleeve of HDPE Pipe

A

HDPE sizing sleeve buildup = 'volatilization and condensation': lower the temperature, clean frequently, and control raw material — three measures at once; buildup scratching is gradual, so regular maintenance is more economical than after-the-fact handling.

Molding Process HDPE；pipe；sizing sleeve；buildup；precipitation

Q

Deformation of PE Injection Molded Products After Packaging

A

PE 'packing hot parts = secondary deformation': packing only after thorough cooling is the bottom line, and load distribution by the liner is the guarantee; PE creeps greatly, so the temperature and pressure in the logistics stage must both be taken into consideration.

Injection Molding PE；deformation；packaging；creep；stacking

Q

Delamination and Peeling of PE Injection Molded Products

A

PE delamination = a 'contamination and compatibility' problem: first check mixed material and regrind, then control release agent and shear; for delaminated parts, don't forcibly adjust the process — find the contamination source first.

Extrusion & Post PE；delamination；contamination；compatibility；release agent

Q

Rapid Decay of Corona Treatment on PE Film

A

PE corona is extremely 'time-sensitive': printing right after treatment is an iron rule, and slip agent exudation is an invisible killer; the dyne value should be managed as a dynamic indicator that decays over time.

Production & Quality PE；film；corona；dyne value；slip agent；aging

Q

Poor Surface Gloss of PE Injection Molded Products

A

PE gloss is greatly limited by the material itself: mold temperature and holding pressure determine the degree of surface replication, mold polishing determines the gloss ceiling, and the grade determines the gloss limit; therefore, to make high-gloss PE parts, first select the right grade, then ...

Injection Molding PE；gloss；replication；polishing；grade

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카테고리

전체 주제 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