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Black FR-4 insulating board
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Keywords: automatic equipment
Product Introduction
Made of glue insulation materials, the upper and lower surfaces of the insulation pad should not have harmful irregularities. The harmful irregularity of the insulation pad refers to one of the following characteristics, that is, defects that destroy uniformity and damage the smooth contour of the surface, such as small holes, cracks, local uplifts, cuts, conductive foreign bodies, creases, voids, concave and convex ripples and casting marks. Harmless irregularities refer to surface irregularities that form during production.
More than 5 different points should be randomly selected for thickness measurement and inspection on the entire insulation board. Measurements can be made using a micrometer or an instrument of equivalent accuracy. The accuracy of the micrometer should be within 0.02mm, the diameter of the drill should be 6mm, the diameter of the plane press foot should be (3.17±0.25)mm, and the pressure foot should be able to apply a pressure of (0.83±0.03)N. The insulating mat should be placed flat so that the micrometer is smooth between measurements.
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