Title:
MOLDING MATERIAL FOR CASTING REFRACTORY METAL
Document Type and Number:
Japanese Patent JPH07164096
Kind Code:
A
Abstract:
PURPOSE: To provide a gypsum molding material exhibiting the excellent adaptability for casting of refractory metal.
CONSTITUTION: A molding material is prepared as follows, 0.5-30 pts.wt. gypsum whisker is added to 100 pts.wt. of the mixture between the heat resistance material consisting of one or ≥2 kinds selected among electrofused alumina, alumina, quartz, crystobalite, magnesia, zirconia and a gypsum hemihydrate, further, the powder of one or ≥2 kinds selected among Zn, Al, Zr, W, Mg, Ti, Mo, Ni, Cr, Co or carbide, nitride boride of these metals are added.
Inventors:
HARA IWAO
KATO HARUHISA
YAMAMOTO TATSUO
KATO HARUHISA
YAMAMOTO TATSUO
Application Number:
JP31047693A
Publication Date:
June 27, 1995
Filing Date:
December 10, 1993
Export Citation:
Assignee:
NORITAKE CO LTD
International Classes:
A61C13/00; A61K6/00; B22C1/00; (IPC1-7): B22C1/00; A61C13/00; A61K6/00
Attorney, Agent or Firm:
Akio Najima (2 others)
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