Loading patent…
AssigneeKawasaki Steel Corporation
InventorsYoshisato Kiyota, Junichi Ohta, Hiroshi Ohtsubo, Shigeaki Takajo
Estimating the term…
A process is provided for the production of a sintered body. The process includes the following consecutive steps: (i) mixing and kneading one or more metal powders and/or one or more alloy powder with a binder into a compound, said metal and alloy powders having an average particle size not greater than 30 .mu.m, (ii) injection-molding the compound into a green body; (iii) debinding the green body to form a debound body; and (iv) subjecting the debound body to first-stage sintering at 1,050.degree.-1,250.degree. C. in a reducing or reduced-pressure atmosphere and then to second-stage sintering at a temperature in a range of 1,100.degree.-1,400.degree. C. which is higher than that of the first-stage sintering. This process can provide sintered Ti bodies and sintered magnetic bodies of the Fe-Si type, which have a density ratio of at least 95%.
A process for the production of a sintered body, which comprises the following steps:
A sintered Ti body consisting essentially of Ti, C and O the amount being up to 0.1 wt. % of C, up to 0.5 wt. % of O, and the balance of Ti and imperative impurities and having a density ratio of at least 95%.
Dependencies are inferred from the claim text.