Roughly conversion method of the metallic plate surface and it is rough conversion device

摘要

PROBLEM TO BE SOLVED: To obtain a roughened face high in the anchoring effect to sprayed coating and small in directivity by scattering grinding material abrasive grains over the surface of a continuously running metallic sheet, interposing the grinding material abrasive grains between a roll covered with an elastic body and the surface of the metallic sheet and rotating the roll. ;SOLUTION: From an abrasive grain storing tank 2 storing grinding material abrasive grains, abrasive grains are scattered over the surface of a metallic sheet 1 by scattering equipment 3. The thickness of the volume of the abrasive grains is made certain by a regulating roll 5. A rotary roll 6 covered with a brush-shaped elastic body 61 is rotated at a high speed, and the abrasive grains are driven into the surface of the metallic sheet 1. A rugged face is formed on the surface of the metallic sheet 1. At a place directly below the rotary roll 6, the deposited layer of the grinding material abrasive grains is pressed from the above, by which the abrasive grains are pressure-bonded to the surface of the metallic sheet 1 to form the rugged face. After that, the rotary roll 6 springs out the spent abrasive grains. The elastic body 61 removes the abrasive grains stuck on the surface of the metallic sheet 1. A sucking apparatus 8 sucks and recovers the abrasive grains 8.;COPYRIGHT: (C)1997,JPO