Method and equipment for preparing semisolid fused mass of ferrous material

A technology for iron and steel materials and a preparation device is applied in the field of preparation of semi-solid melts of iron and steel materials, and can solve the problems of high manufacturing cost and inconvenience in popularization and application.
CN1480275AInactive Publication Date: 2004-03-10BEIJING JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING JIAOTONG UNIV
Publication Date
2004-03-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

An apparatus for preparing the semi-solid molten body of iron and steel is composed of a special container for molten iron or steel, temp regulator, stirrer and bottom vibrator. The linear layer of said special container contains nucleation promoter. Its method includes pouring the molten iron or steel at the temp which is 5-10 deg.C, higher than the temp of liquid-phase line into said special container, and stirring or vibrating for 1-10 min.
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Description

technical field

[0001] The invention relates to a method and device for preparing semi-solid melts of iron and steel materials, which are suitable for the preparation of semi-solid melts of various iron and steel materials and various non-ferrous metals. Background technique

[0002] Semi-solid melt is an essential raw material for semi-solid forming, which can be used in forming methods such as die-casting, extrusion, rolling or forging. The basic requirement of a semi-solid melt is that the solid phase is fine, round, non-dendritic and evenly distributed. Due to the dendrite growth characteristics of iron and steel materials, the solid phase structure obtained by solidification under normal conditions is mainly dendrites. Therefore, how to prepare semi-solid melts of iron and steel materials that meets the requirements is a common concern.

[0003] In the prior art, there are four main technical approaches for preparing semi-solid melts: utilizing external force fields or...

Claims

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