Title:
LINING MATERIAL FOR INJECTION MOLDING OF MAGNESIUM OR MAGNESIUM ALLOY
Document Type and Number:
Japanese Patent JP3723874
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the erosion of the inside face of a cylinder to be used at the time of injection-molding an Mg alloy contg. Mg or Al caused by an Mg alloy and to improve the durability of the inside face of the cylinder by executing the lining of a Co alloy having a specified compsn.
SOLUTION: Lining 2 by a Co alloy is formed on the inside face of a cylinder 1 to be used at the time of injection-molding the molten metal of Mg or an Mg alloy contg. a small amt. of Al by an HIP method. As the Co alloy, the one contg., by weight, 0.8 to 4.0% C, 15 to 30% Cr, 5.0 to 15.0% W, 10 to 15% Ni 1.0 to 3.5% B or furthermore contg. 2.0 to 5.0% Si and 1.5 to 3.5% Fe is used. The lining 2 by the Co alloy is excellent in erosion resistance to the molten Mg and molten Al contg. Mg alloy, by which a lining material for injection-molding for Mg alloys furthermore having excellent durability in high temp. use can be obtd.
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Inventors:
Yasuhiko Tanaka
Application Number:
JP12144397A
Publication Date:
December 07, 2005
Filing Date:
April 25, 1997
Export Citation:
Assignee:
Japan Steel Works, Ltd.
International Classes:
B22D17/22; C22C19/07; (IPC1-7): C22C19/07; B22D17/22
Domestic Patent References:
| JP2125833A | ||||
| JP52117841A | ||||
| JP872110A |
Attorney, Agent or Firm:
Yuki Yokoi