Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PSU Notch Sensitivity and Fracture

A

PSU notch sensitivity requires an absolute fillet principle in design; arc transition is a zero-cost strength improvement; stress management coordinates with structural design.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence

Molds & Tooling PSU; notch; fracture; fillet; stress concentration; design

Q

PSU Wall Thickness Design Constraints

A

PSU wall thickness constraints are hard boundaries determined by material flowability; the 1.5mm bottom line cannot be broken; advancing design review avoids mold waste.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence

Molds & Tooling PSU; wall thickness; flow length ratio; 1.5mm; design; flowability

Q

PSU Surface Scratches and Chipping

A

PSU surface protection starts with mold finish; processing and transfer links are high-incidence areas for damage; the appearance standards of transparent parts need whole-chain guarantee.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent...

Molds & Tooling PSU; scratches; chipping; surface finish; transfer; protection

Q

Contamination by Decomposed Material After PSU Shutdown

A

The core of PSU shutdown management is thorough removal of decomposed material; the choice of purging material is particular; the purge amount when resuming production must be sufficient.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent ...

Molds & Tooling PSU; shutdown; decomposition; cleaning; impurities; purging

Q

PSU Nozzle Drool and Cold Slug

A

The high-viscosity characteristic of PSU allows large-orifice nozzle design; extended heated nozzles are standard; fine temperature management avoids both extremes.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence

Molds & Tooling PSU; nozzle; drool; cold slug; extended type; orifice

Q

Gate Marks on PS Products

A

Gate mark management relies on coordination between design and process.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence; Include this case in the defect archive as a reference for troubleshooting similar problems in the future

Molds & Tooling PS; gate mark; trimming; edge chipping; submarine gate

Q

Mold Temperature Selection for PS Products

A

Mold temperature selection is a balance between quality and efficiency; product requirements determine priorities.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence; Include this case in the defect archive as a reference for tr...

Molds & Tooling PS; mold temperature; selection; stress; cycle

Q

Mold Venting for PS Products

A

Venting design for transparent parts must be more adequate; burn marks are the indication for adding venting.; After confirming effectiveness, solidify the parameters and practices into the work instructions to prevent recurrence; Include this case in the defect archive as a reference for trouble...

Molds & Tooling PS; venting; burning; trapped air; transparent parts

Q

PS Product Gate Design

A

The gate is the weak link of PS products; attention should be paid to both design and post-processing.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for simi...

Molds & Tooling PS;gate;stress concentration;cracking;design

Q

PS Product Demolding Draft Design

A

PS mold draft should take the upper limit; conservative demolding design is advisable for brittle materials.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling PS;demolding draft;scratch;mold;design

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