Sintered bodies and production process thereof

Details Sintered bodies and production process thereof Sintered bodies and production process thereof

B - Operations, Transporting

22

F

75/153, 75/165,

B22F 3/22 (2006.01) B22F 3/10 (2006.01) H01F 1/22 (2006.01)

Patent

CA 1333341

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 30µm, 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 1,050-1,250°C in a reducing or reduced-pressure atmosphere and then to second-stage sintering at a temperature in a renge of l,100-1,400°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%.

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