Conductive treatment technology for insulating layer film surface
A technology of insulating film and processing technology, which is applied in the direction of metal material coating process, superimposed layer plating, coating, etc., can solve the problems of gas residue and cavity formation, and achieve firm adhesion, good exhaust performance, The effect of good electrical conductivity and electromagnetic shielding effect
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[0043] Example 1
[0044] A conductive treatment method for the surface of an insulating film includes the following steps:
[0045] S11. Provide a base film with a thickness of 15μm~200μm, uniformly coat 1μm~30μm of silicone-free release agent or silicone oil on the surface of the base film, cure it by UV, and then bake and cure at 50℃~180℃ to form a release containing Layer carrier film; uniformly coat modified epoxy resin glue or high temperature resistant ink with a thickness of 3μm-50μm on the carrier film layer, and form an insulating layer after baking and curing at a temperature of 50°C to 180°C.
[0046] S12. The pressure in vacuum plating is 1×10 -2 Pa, working vacuum plating pressure is 0.1~1Pa, speed is 0.5~5m / min, resistance value is ≤20Ω, working voltage is 500~1000V, working current is 230A, and argon gas volume is 20~500SCCM. The insulating layer is pretreated in a way.
[0047] S13. Put the insulating layer pretreated by vacuum plating in an alkaline electrolyte, and...
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