B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/142
B28B 17/02 (2006.01) B22F 3/22 (2006.01) B22F 5/04 (2006.01) C04B 35/565 (2006.01) C04B 35/584 (2006.01) C04B 35/591 (2006.01) C04B 35/634 (2006.01) F01D 5/28 (2006.01)
Patent
CA 1251622
ABSTRACT OF THE DISCLOSURE Ceramic parts of complicated configurations with portions of different thicknesses can be mass produced economic- ally with high production yield and excellent quality using a novel injection molding process, comprising, adding a molding additive to a ceramic powder and mixing the same in such a ratio that at least 16 wt% of the molding additive is contained in the resulting mixture, injection molding the mixture to an injection molded body of a desired shape containing at least 16 wt% of the molding additive, finishing machining the injection molded body to a substantially final configuration, removing the molding additive from the machined body by heating at a tempera- ture not exceeding 500°C without reacting the ceramic powder to yield a machined and degreased body, and firing the machined and degreased body to sinter the same.
454115
Ito Shigenori
Mizuno Takeyuki
Ngk Insulators Ltd.
Smart & Biggar
LandOfFree
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