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Common abnormal causes of crimping machine

Published:

2022-11-23 15:34

 

Main items

Abnormal items

Quality problems caused

A. Substrate

1. The film viscosity is low

Slipping, thin pressing thickness, white edge and white angle

2. High viscosity

Weaving whitening, thick pressing thickness, white edges and corners

3. Uneven glue content

Uneven distribution of sliding and pressing thickness

4. Contamination by impurities

layered

5. Moisture absorption

White edge and white corner

B. Vacuum press

1. Uneven pressure distribution j Poor parallelism of hot disk k Poor buffer material

Sliding, white edges and corners, texture whitening and bubble residue

2.The vacuum pump is abnormal

Bubble residue

3. Loss of voltage

织纹白化、气泡残留、分层

4.Blocking temperature distribution of hot coal oil pipe is uneven

Curing不足、白边白角、织纹白化

C. Pressing condition

1. The heating rate is too fast

Sliding, white edges and corners, thin plate thickness

2.The heating rate is too slow

Fabric whitening, bubble residue, copper surface wrinkle

3.Too much pressure

Sliding, white edges and corners

4. The pressure is too low

Fabric whitening, bubble residue, copper surface wrinkle

D. Design operation management

1.Poor interlayer overlapping alignment

Sliding, white edges and corners

2.Use high glue content film

Slide

3.Structural pressing of multiple base materials

Slide

4. Too many overlapping layers

Sliding, white edges and corners

51 ply lamination structure

Poor sealant filling and wrinkle of thick copper line

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