MANUFACTURE METHOD OF TITANIUM NAIL CLIPPERS

摘要

PURPOSE: A production method of nail clippers made of titanium is provided to substantially reduce manufacturing costs by simplifying production processes when nail clippers are manufactured and improving productivity through producing nail clippers by injection-molding or extrusion using titanium powder. CONSTITUTION: A production method of nail clippers made of titanium includes the following steps; a mixing step (S10) which produces a mixture mulling in a pressurizing mulling apparatus at 120-140 degree C for an hour after mixing 59-81weight% of pure titanium with an average granularity ranged 5-45 micro meter, 13-27weight% of paraffin wax 6-14 weight% of stearic acid; a molding step (S20) in which a molded product is obtained through injection-molding with a temperature ranged 120-140 degree C and a pressure ranged 50-70 kgf/cm^2 adding the mixture in the mixing step into an injection molding machine which molds each part of the nail clipper such as an upper board, a lower board, and a pressurizing board; a sintering step (S30) in which a sintered product is obtained sintering the molded product from the molding step in a vacuum furnace with inactive gas at 1000-1200 degree C for 10-12 hours; a heat treatment step (S40) which obtains a heat treated product according to strength of the nail clippers by treating the sintered product from the sintering step with heat; a polishing step (S50) which obtains a polished product polishing an upper blade and a lower blade at the end of the upper board and the lower board of the nail clippers among the heat treated product in the heat treatment step; and an assembly step (S60) which completes the nail clippers by assembling the polished product from the polishing step and the heat treated product from the heat treatment step. [Reference numerals] (S10) Mixing titanium; (S20) Injection-molding; (S30) Sintering molded product; (S40) Heat treating sintered product; (S50) Polishing an upper blade and a lower blade; (S60) Assembling nail clippers