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 |
|
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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