| 摘要 |
PURPOSE:To prevent corrosion without application of any rust-proof agents, by pressing a plate with adhesion of a specified press oil and combining it with other parts without removing the oil. CONSTITUTION:To 92-100% hydrocarbon are added 0-1.0% halogen compd. such as chlorinated paraffin wax, 0-0.5% glyceride consisting of mono-, di- and triester of glycerine, 0-0.5% alcohol such as higher alcohol, glycol or glycerine, 0-1.5% fatty acid such as oleic acid, etc. to obtain press oil of kinematic viscosity of 2-40cst at 50 deg.C. Then a plate to which said press oil adheres is pressed to mold top and bottom plates 1, 2 and cylinders 3, 4 and, without removing the press oil, the bottom opening of the top plate 1 is covered with the bottom plate 2, the space between the top and bottom plates 1, 2 is partitioned with the cylinder 3, within which the cylinder 4 is vertically placed, and then these parts are welded at positions a, b and c. |
