Processing Machinery
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TPE Melt Temperature 180-220℃
Fenómeno del problema
Low melt temperature causes insufficient filling, high temperature causes degradation and discoloration, and nozzle drooling
Análisis de la causa
The TPE melt temperature window is 180-220℃, the SBS system takes the middle-lower limit and the SEBS system takes the middle-upper limit; exceeding 220℃ causes thermal decomposition producing low-molecular substances, making products sticky and discolored
Solución
①Adjust melt temperature at 180-220℃ according to the system; ②SBS system 180-200℃, SEBS system 200-220℃; ③Cool down immediately if exceeding 220℃
Conclusión clave
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
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