Problem & Solution

Practical answers to common plastic material challenges

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Q

TPE Back Pressure and Screw Speed

A

TPE back pressure is the balance between dispersion and shear; color masterbatch dispersion relies on back pressure, degradation prevention relies on low speed; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery TPE; back pressure; screw speed; color masterbatch; dispersion

Q

TPE Mold Temperature SBS/SEBS

A

TPE mold temperature is managed by system grading; SBS low temperature, SEBS medium temperature, balancing surface quality and cycle; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Injection Molding TPE; mold temperature; SBS; SEBS; 10-40℃

Q

TPE Barrel Zone Temperature

A

TPE barrel zoning is the basis of uniform plasticization; the three-zone gradient plus independent nozzle temperature control, neither can be omitted; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery TPE; barrel temperature; zoning; nozzle; cold slug well

Q

TPE Melt Temperature 180-220℃

A

The TPE temperature window is graded by system; SBS and SEBS have different temperature strategies and cannot be borrowed from each other; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery TPE; melt temperature; 180-220℃; SBS; SEBS

Q

TPE Overmolding Material Must Be Pre-dried

A

Pre-drying of TPE overmolding is the prerequisite for bonding quality; 80℃×2-4h is a fixed process for overmolding material; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Drying TPE; overmolding; pre-drying; 80℃; gas marks

Q

TPE Drying Graded by Hardness

A

TPE drying temperature must match hardness; soft material uses low temperature to prevent agglomeration, hard material uses high temperature to ensure drying, with graded management; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Drying TPE; drying temperature; hardness grading; 40-60℃; vacuum

Q

TPE Drying 0.1% Red Line

A

TPE drying is the guarantee of appearance quality; the 0.1% red line plus the heat-preserving hopper keeps moisture defects out before injection; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Drying TPE; drying; 0.1%; 80-100℃; bubbles

Q

TPE Product Molding Cycle

A

Cycle optimization is supported by data.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery TPE; cycle; cooling; water channels; optimization; verification

Q

TPE Product Gate Design

A

Gate design affects soft rubber quality.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Molds & Tooling TPE; gate; design; shear; trimming; submarine type

Q

TPE Product Mold Temperature Selection

A

Mold temperature is the balance between quality and efficiency.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Molds & Tooling TPE; mold temperature; selection; gloss; cycle; stability

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