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이혁기,이동희,장경옥 연세대학교 산업기술연구소 1991 논문집 Vol.23 No.2
The mixtures of Cu or Fe powders and microcrystalline wax as binder were extruded into the long wire by metal injection molding method and sintered after debinding at different conditions. In the case of coarse(33㎛) and irregular Cu powders, the mixture containing 50 vol% wax was suitable for the uniform mixing and forming when injected at 70℃. Binder in coarse Cu powder mixtures was removed at 300℃ for 10 hours. On the other hand, for the spherical and fine Fe powders(4㎛) 30 vol% wax was appropriate and 78% of wax was removed at 400℃ for 1 hour. The density of sintered Cu specimens reached up to 73% of full density when sintered at 1000℃ for 1 hour, but that of Fe specimens was observed to be as high as 97% when sintered at 1200℃ for 1 hour after the optimum debinding.