Injection Molding
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PESU Venting Design
Problem Phenomenon
PESU mold venting, air entrapment risk in high-speed filling.
Cause Analysis
PESU rapid injection venting demand; vent groove design; position coverage; depth control; maintenance and cleaning.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
①Sufficient vent grooves; ②reasonable position; ③adapted depth; ④regular cleaning; ⑤air entrapment monitoring.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PESU venting is the guarantee of high-speed process; design and maintenance are equally important; monitoring prevents defects.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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