Category Archives: Plastic

May03
Trouble Shooting Guide for Plastic Injection

發表於 May 3, 2016

Trouble Suggested Remedies (Solutions) DIMENSIONAL PROBLEMS   Shot-to-shot dimensional variations Increase injection pressure Maintain uniform pad (cushion) Repair leaking back flow value if pad cannot be maintained Increase screw forward time Maintain uniform cycle Eliminate un-melted particles (see below) Use … Continue reading →

Plastic, Quality     WorkingBear    Views (3,155)     comment (0)

Jun24
Case study for the mold-in insert screw boss broken

發表於 June 24, 2015

In a previous discussion, WorkingBear identified potential root causes for screw boss cracking after mold-in screw nut insertion. Following a complaint from the field, we asked EMS and the plastic injection supplier to double-check their inventory and found that approximately … Continue reading →

Design, Plastic, Quality     WorkingBear    Views (10,123)     comment (0)
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May01
How come the screw boss crack after mold-in screw insert?

發表於 May 1, 2015

Well, this is a long-ago history that WorkingBear writes this article just for a record. One day we received a complaint from the customer about one of our products had a plastic house broken issue. There is a crack show … Continue reading →

Design, Manufacture, Plastic, Quality     WorkingBear    Views (15,721)     comments (8)
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