| 摘要 |
PURPOSE:To bind airtightly the tight mating faces of metallic members and to coat and form plating films of a low melting alloy on the surface of both members by inserting the assembling wall part of the other member into the cylindrical hole part of the metallic member and caulking the two parts then immersing said parts into a molten bath of the low melting metal. CONSTITUTION:The assembling wall part 4 of the metallic member 3 such as tubular member is inserted into the cylindrical hole 2l of the metallic member 1 of a joint or fuel tan, etc. The inserted part 5 is caulked from the outside peripheral side to the tight mating state. The inserted part is immersed in this state into the molten bath of the low melting metal consisting of tin, lead, zinc or the alloy thereof. The low melting metal is then penetrated into the part 5 to bind airtightly the tight mating faces as well as to coat and form the plating films 6 of the low melting metal on the surfaces of both members 1, 3. The need for a post treatment such as rust preventive treatment after fixing is eliminated by the above-mentioned method. |
