Injection Molding
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ASA injection speed 200mm/s
Problem Phenomenon
ASA injection speed 200mm/s standard, high speed surface and weld lines.
Cause Analysis
ASA injection speed average 200mm/s; high speed obtains the best surface finish and strongest weld lines; but shear and trapped air; mold venting matching; process window.
Solution
①Injection speed 200mm/s reference; ②high speed surface weld lines; ③venting matching; ④shear monitoring; ⑤window optimization.; After adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA 200mm/s is a high-speed process quantified reference; surface and weld lines benefit; matching prevents side effects.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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