Thermoforming
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PMMA Extruded Sheet '2079851475616104458
Fenómeno do problema
Extruded sheets tear and have uneven thickness during '2079851475616104458, and the sheet deforms permanently between clamps
Análise das causas
Extruded sheet '2079851475616104458 temperature is 270-350°F (about 132-177℃); multiple independent clamps deform the sheet between clamps; improper infrared heater position causes center overheating
Solução
①Use continuous clamps instead of independent clamps for '2079851475616104458; ②optimize infrared heater position to prevent center overheating; ③control forming temperature and manage the softening zone above 220°F
Conclusão principal
Clamps and heating in extruded sheet '2079851475616104458 guarantee geometric uniformity; continuous clamps plus a uniform heating field; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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