Coating aluminum sheet and technological process for manufacturing same
A technology of aluminum flakes and coatings, applied in coatings, devices for coating liquid on the surface, epoxy resin coatings, etc., can solve the inconvenience for users or operators to use, transport or store, and reduce the drilling of circuit boards Hole position accuracy and hole quality, etc., to achieve the effect of improving the quality of the drill hole, low shrinkage, and high chemical stability
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[0014] Please refer to figure 1 As shown, a coated aluminum sheet is described below in conjunction with an embodiment, which is used for circuit board drilling consumables, including a substrate body 1 and a board body layer 2 coated on the surface of the substrate body 1 .
[0015] The base body 1 is processed from metal aluminum sheet or aluminum foil. The board body layer 2 includes main materials and auxiliary materials, and the main materials include coating pigments and diluents. The auxiliary materials include calcium powder, toner, defoamer, complex, and leveling agent.
[0016] The proportion range of the composition formula is that the diluent accounts for 76.1%-80.1%, the coating pigment accounts for 5.3%-6.1%, the calcium powder accounts for 3.5%-4.2%, the toner accounts for 2.8%-3.5%, and the defoamer accounts for 2.8%-3.8%, complexes accounted for 4.21%-5.0% and leveling agents accounted for 2.6%-2.8%. The composition ratio of the ingredients is that diluent ...
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