Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

TPE flash

A

For flash check clamping and grading; 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 similar problems later

Molds & Tooling TPEflashclampingparting line

Q

TPE sticky exudation

A

For sticky exudation check formulation and temperature; 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 similar problems later

Processing Machinery TPEstickyexudationformulation

Q

TPE silver streak moisture

A

For silver streaks check moisture first; 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 similar problems later

Material Drying TPEsilver streakmoistureshear

Q

TPE bubble causes

A

Bubbles are identified and handled by three routes; 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 similar problems later

Material Drying TPEbubblethree routesidentification

Q

TPE first article verification

A

TPE first article verification must include material state and bonding; qualified appearance does not mean qualified function; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying TPE；first article verification；moisture content；bonding；material change

Q

TPE barrel cleaning

A

TPE barrel cleaning selects materials by system; PS for SBS and PE/PP for SEBS, which must not be mixed; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery TPE；barrel cleaning；SBS；SEBS；PS

Q

TPE extrusion streaks

A

TPE extrusion streaks are troubleshooted along the three lines of die, cleanliness, and weld; die condition is the first inspection item; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post TPE；extrusion；streaks；die；foreign material

Q

TPE extrusion deformation

A

TPE extrusion deformation is troubleshooted along the three lines of cooling, shrinkage, and curing; shrinkage matching of double-layer extrusion is a special consideration; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post TPE；extrusion；deformation；cooling；double-layer extrusion

Q

TPE extrusion output instability

A

TPE extrusion stability relies on temperature accuracy and pellet condition; slipping is an alarm of the feeding system; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post TPE；extrusion；unstable output；screw slipping；preheating

Q

TPE extrusion die buildup

A

TPE die buildup is a dual signal of drying and formulation; Teflon coating is an effective hardware countermeasure; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post TPE；extrusion；die buildup；drying；Teflon

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