Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PPS mold temperature 130-150℃

A

Mold temperature is the switch of PPS crystallinity; 130-150℃ ensures sufficient crystallization, glossy surface and dimensional stability; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling PPS; mold temperature; 130-150℃; crystallinity; gloss

Q

PPS barrel segmented temperature

A

PPS barrel temperature gradient must balance bridging prevention and drooling prevention; independent nozzle temperature control is the key at the end of the temperature chain; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PPS; barrel temperature; segmentation; nozzle; bridging

Q

PPS melt temperature 300-340℃

A

The high-temperature window 300-340℃ of PPS is a balance of flowability and safety; exhaust configuration is a supporting requirement for high-temperature processing; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molding Process PPS; melt temperature; 300-340℃; 360℃; exhaust

Q

PPS glass fiber grade drying difference

A

PPS drying procedures are graded by grade; the drying requirements of glass fiber filled grades are stricter than pure resin; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Drying PPS; glass fiber; drying; 135-163℃; grading

Q

PPS low water absorption still needs drying

A

The goal of PPS drying is surface water rather than deep water; 140℃×3-5h hot air or 120℃ dehumidifying, drying overtime brings no extra benefit; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Drying PPS; drying; 140℃; surface water; drooling

Q

PPSU aerospace

A

PPSU aviation application is a high-end field; standards and certification are the threshold; management ensures quality.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PPSU; aviation; flame retardant; high temperature; standards; certification

Q

PPSU insert molding

A

PPSU inserts are composite structures; thermal management is key; testing ensures reliability.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Injection Molding PPSU; insert; thermal expansion; preheating; bonding; testing

Q

PPSU venting design

A

PPSU venting is high-speed process assurance; design and maintenance are equally important; monitoring prevents defects.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Injection Molding PPSU; venting; air trap; vent groove; position; cleaning

Q

PPSU runner system

A

PPSU runner is the filling foundation; short, thick and balanced is the principle; optimization ensures efficiency and quality.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling PPSU; runner; short and thick; balance; pressure; efficiency

Q

PPSU gate design

A

PPSU gate is key to flow and appearance; design and simulation are equally important; verification ensures quality.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling PPSU; gate; design; viscosity; flow; appearance

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