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Title:
DIE-CASTING PROCESS METHOD FOR DIE-CAST MOLDING OF METAL IN SEMI-SOLID STATE
Document Type and Number:
WIPO Patent Application WO/2016/045534
Kind Code:
A1
Abstract:
A die-casting process method for die-cast molding of a metal in a semi-solid state, wherein a semi-solid state die-casting machine is used as a processing device and a pulper is used as a device for preparing and delivering a slurry in a semi-solid state; the method comprises the steps: spraying a mold release agent and mold clamping; melting the raw material and keeping the temperature; adding a metal modificator into the molten raw material to prepare the slurry in a semi-solid state; transferring the slurry in a semi-solid state into a mold by the pulper; die-casting, opening the mold and exporting a die-cast; removing the sprue to obtain the final die-cast. In the process method, a metal modificator is added to the liquid metal raw material during the preparation of the slurry in a semi-solid state so as to generate more crystal nuclei, so that die-cast products have better mechanical properties; by way of die-casting the slurry in a semi-solid state, during mold stripping the die-cast is low in temperature and small in deformation quantity, and the best shapes and surface smoothness of the product can be guaranteed; and the die-cast is compact interiorly with producing air holes, and the best interior structure and mechanical properties of the die-cast product are guaranteed.

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Inventors:
REN HUAIDE (CN)
WANG VICTOR (CN)
LI GUNAN (CN)
Application Number:
PCT/CN2015/089861
Publication Date:
March 31, 2016
Filing Date:
September 17, 2015
Export Citation:
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Assignee:
ZHUHAI RUNXINGTAI ELECTRICAL CO LTD (CN)
International Classes:
B22D17/08; B22D18/02
Domestic Patent References:
WO2005056845A22005-06-23
Foreign References:
CN104259418A2015-01-07
CN101537480A2009-09-23
CN1416982A2003-05-14
US7509993B12009-03-31
CN1994622A2007-07-11
US7152658B22006-12-26
Other References:
WU, SHUSEN ET AL., MACHINIST METAL FORMING, SEMI-SOLID DIE-CASTING FORMING TECHNIQUE FOR HIGH SILICON-ALUMINUM ALLOY, 31 December 2010 (2010-12-31), ISSN: 1674-165X
Attorney, Agent or Firm:
BOXIN CHINA INTELLECTUAL PROPERTY (CN)
北京名华博信知识产权代理有限公司 (CN)
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