Title:
【発明の名称】金属の半溶融射出成形方法及びその装置
Document Type and Number:
Japanese Patent JP3370278
Kind Code:
B2
Abstract:
In a semi-molten metal injection molding method of producing a thin molded product by injecting a semi-molten metal M of a magnesium alloy, in a semi-melting state, into a cavity of a mold through a product gate, characterized in that it is made possible to obtain a high-quality thin molded product by maintaining satisfactory fluidity of the semi-molten metal M. A grain size of the solid fraction in the melt M is set to not more than 0.13 times the average thickness of the product portion of the thin molded product and a molten metal velocity at the product gate is set to not less than 30 m/s and, moreover, a solid fraction Fs (%) of the semi-molten metal M and a grain size D ( mu m) of the solid phase of the semi-molten metal M are set so as to define the relationship Fs x D divided by the surface area (in mm<2> ) on both sides in the direction of thickness is not more than 0.75.
Inventors:
Kazuo Sakamoto
Yasutoshi Ishida
Yukio Yamamoto
Yasutoshi Ishida
Yukio Yamamoto
Application Number:
JP18916298A
Publication Date:
January 27, 2003
Filing Date:
July 03, 1998
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
B22D18/00; B22D17/00; B22D17/22; C22C1/02; (IPC1-7): B22D17/00; B22D17/22; C22C1/02
Domestic Patent References:
| JP999353A |
Attorney, Agent or Firm:
Hiroshi Maeda (2 outside)