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Q

Difficult Cleaning of Carbon Deposits in PEEK Hot Runner

A

PEEK hot runner maintenance must use a dedicated high-temperature cleaning solution; tracing carbon deposit black specks should include hot runner dissection inspection; lowering temperature and draining at shutdown is a low-cost, high-return habit.

Molds & Tooling PEEK；hot runner；carbon deposit；cleaning；black speck；shutdown

Q

Difficult Demolding and Mold Sticking of PEEK

A

PEEK demolding is a friction and clamping force problem under high-temperature working conditions; investment in draft angle and polishing at the mold design stage has the highest return; over-packing is the most common inducement on the process side.

Molds & Tooling PEEK；mold sticking；demolding；ejection whitening；draft angle；clamping force

Q

PEEK Flash

A

PEEK's high injection pressure places higher demands on clamping and mold rigidity; recurring flash mostly stems from mold wear rather than parameters; the mold maintenance cycle for high-temperature working conditions should be shortened.

Injection Molding PEEK；flash；clamping force；parting line；wear；high pressure

Q

Glass Fiber Friction Shear Overheating of PEEK

A

The temperature management of glass fiber reinforced PEEK must account for the shear heat contribution; the actually measured melt temperature is the only true basis; friction heating scales up in step with fiber content and screw speed.

Molds & Tooling PEEK；glass fiber；shear heat；overheating；screw speed；melt temperature

Q

Floating Fibers on Glass Fiber Reinforced PEEK

A

PEEK glass fiber floating is the combined result of fluidity and temperature management; high temperature and high speed are the most effective process means; the fiber orientation direction should be planned at the mold design stage for appearance parts.

Injection Molding PEEK；floating fiber；glass fiber；appearance；orientation；reinforcement

Q

Spiral Marks in PEEK Extrusion

A

PEEK rod spiral marks originate from the melt's rotational flow not being stabilized; a breaker plate and an extended land are the standard solutions; the influence of screw cleanliness on flow stability cannot be ignored.

Extrusion & Post PEEK；spiral mark；extrusion；breaker plate；die；rod

Q

Orange Peel Surface in PEEK Extrusion

A

PEEK orange peel treatment revolves around the three elements of melt state, die state, and cooling method; multi-stage slow cooling is more favorable to surface quality than quenching; die polishing is basic work that is often overlooked.

Extrusion & Post PEEK；orange peel；extrusion；die；cooling；gloss

Q

Rough Surface and Unmelted Particles in PEEK Extrusion

A

For poor plasticization in PEEK extrusion, first check the temperature system; unmelted particles are direct evidence of insufficient temperature; the die flow channel design must match the flow characteristics of high-viscosity melt.

Extrusion & Post PEEK；extrusion；unmelted particle；plasticization；rough surface；die

Q

Internal Pores and Bubbles in PEEK

A

PEEK pores are the result of the superposition of the three factors of drying, venting, and packing; thick-wall parts and extruded profiles carry the highest risk; porosity should be included in the non-destructive testing items for critical parts.

Material Drying PEEK；pore；bubble；packing；drying；extrusion

Q

Sink Marks and Shrinkage Voids of PEEK

A

For PEEK sink mark treatment, first confirm the gate freeze time and then set the holding parameters; thick-wall design is the source problem; the high material unit price makes shrinkage-void scrap costly, so mold-flow verification is worth the upfront investment.

Molds & Tooling PEEK；sink mark；shrinkage void；holding pressure；thick wall；gate freeze

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الفئات

جميع المواضيع 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