Injection sleeve for die casting and a method of casting an alum

Metal founding – Process – Shaping liquid metal against a forming surface

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164312, B22D 1710, B22D 1720

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053238389

ABSTRACT:
The injection sleeve comprises: a cylindrical cermet sintered body comprising a hard ceramic phase whose major components are at least one selected from the group consisting of a complex boride of Ni and Mo, a complex boride of Ni and W and a complex boride of Ni, Mo and W and a metal matrix phase consisting of a solid solution whose major components are Ni and Mo. The cylindrical cermet sintered body contains the hard ceramic phase in an amount of not less than 50% by weight and not more than 90% by weight.

REFERENCES:
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patent: 4733715 (1988-03-01), Matsuzaki et al.
patent: 5022919 (1991-06-01), Shinozaki et al.
Reports Research Laboratory Asahi Glass Co., Ltd., 40(2), 1990, pp. 243-251, Kazuo Hamashima, et al., "Mechanical Properties of Boride Cermet at High Temperature".
Soviet Power Metallurgy and Metal Ceramics, No. 8 (44), pp. 665-670, P. T. Kolomytsev, et al., "Phase Composition and Some Properties of Alloys of the System Molybdenum-Nickel-Boron" Aug. 1966.

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