SURFACE TREATMENT COMPOSITION FOR SELF-TAPPING, PART SURFACE-TREATED THEREWITH, PRECISION INSTRUMENT USING THE PART AND JOINING METHOD FOR THE PRECISION INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To provide a surface treatment composition for self-tapping with which the parts to be subjected to screw forming require no annealing treatment, the parts are not deformed even when diametrical press-fitting is performed, further, the scattering of cut powder does not occur, the structure is not restricted, and there is no need for screw forming parts to be subjected to large-scale treatment such as plating, to provide parts using the same, and to provide a joining method for joining the parts or precision instrument using the surface treatment composition for self-tapping.;SOLUTION: In self-tapping as a joining method for precision instrument or parts, the surface treatment composition obtained by mixing an extreme-pressure additive or/and a nonionic surfactant in a solvent is used.;COPYRIGHT: (C)2004,JPO