Novel copper and copper alloy plate belt electromagnetism assistant casting method and device

A copper alloy plate and electromagnetic technology, which is applied in the field of non-ferrous metal processing, can solve problems that do not involve the preparation process and equipment of copper and copper alloy slabs, achieve simplified homogenization process, improve the yield of strip processing, and improve the surface quality effect

Active Publication Date: 2011-09-28
CHINALCO MATERIALS APPL RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] None of the above technologies involve the preparation process and equipment of copper and copper alloy slabs

Method used

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  • Novel copper and copper alloy plate belt electromagnetism assistant casting method and device
  • Novel copper and copper alloy plate belt electromagnetism assistant casting method and device
  • Novel copper and copper alloy plate belt electromagnetism assistant casting method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The magnetic field generating device 3 is fixed inside the metal water-cooled crystallizer 5, such as figure 2 , the graphite crystallizer 2 and the metal water-cooled crystallizer 5 are installed on the horizontal continuous casting furnace group 1. When the copper alloy liquid in the horizontal continuous casting furnace group 1 reaches 1000-1200 ° C, the tractor is started to start continuous casting, driving the copper The alloy slab 6 moves, one electrode of the DC power supply 4 is electrically connected to one side wall on the lateral side of the graphite crystallizer 2, and the other electrode of the DC power supply 4 is electrically connected to the other side wall on the lateral side of the graphite crystallizer 2 Through, a current loop is formed between the two side walls of the graphite crystallizer lateral side, and the current intensity is 50-500 amperes; the magnetic field generator 3 generates a magnetic field of 150-1000 gauss, and when the melt passes...

Embodiment 2

[0029] The magnetic field generating device 3 is fixed on the outside of the metal water-cooled crystallizer 5, such as image 3 , the graphite crystallizer 2 and the metal water-cooled crystallizer 5 are installed on the horizontal continuous casting furnace group 1. When the copper alloy liquid in the horizontal continuous casting furnace group 1 reaches 1000-1200 ° C, the tractor is started to start continuous casting, driving the copper The alloy slab 6 moves, one electrode of the DC power supply 4 is electrically connected to one side wall on the lateral side of the graphite crystallizer 2, and the other electrode of the DC power supply 4 is electrically connected to the other side wall on the lateral side of the graphite crystallizer 2 Through, a current loop is formed between the two side walls of the graphite crystallizer lateral side, and the current intensity is 50-500 amperes; the magnetic field generator 3 generates a magnetic field of 50-500 gauss, and when the mel...

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Abstract

The invention relates to a novel copper and copper alloy plate belt electromagnetic auxiliary casting method and a device thereof; a fixed magnetic field generation device is arranged at the horizontal continuous casting crystallizer position of the copper and copper alloy plate slab; an external magnetic field has the intensity of 50-2000 Gauss; furthermore, a current is transversely applied between two side walls of the transverse side of a graphite crystallizer with the current intensity of 1-2000A; the current forms a loop transversely; the current loop is vertical to the axial direction of the plate belt; the magnetic mixing direction can be changed by changing the direction of the magnetic field or the current direction so as to form forcible mixing along the identical direction or reverse direction to the plate slab direction; the mixing can be axial continuous or intermittent mixing so as to lead the melt at the front edge of the crystallization bears a Lorentz force and forcibly mixed, thus prompting the solidified area to form a plurality of free crystal nucleuses and being beneficial to generating equiaxed grain; therefore, segregation and negative segregation is restrained, the casting tissue is fined, the plate slab surface quality and the processing yield of the plate belt are improved, the continuous production of bronze plate slab with high content of Sn is easy to realize, and the homogenous processing technology is simplified.

Description

technical field [0001] The invention relates to a novel copper and copper alloy strip electromagnetic assisted casting method and device, belonging to the technical field of non-ferrous metal processing. Background technique [0002] The traditional copper alloy strip adopts the semi-continuous casting or full continuous casting process to prepare the ingot, and then prepares the strip product through hot rolling blanking, cold rolling and other processes. Since the 1980s, the domestic copper processing industry began to adopt horizontal continuous casting technology to prepare strip blanks with a thickness of 14-18mm. The width of the slab is usually between 300-650mm. In theory, the horizontal continuous casting process can obtain blanks with any large coil weight. , The slab undergoes decoiling, face milling, cold rolling and other processes to prepare strip products of various thickness specifications. Although this technology cannot fully replace the block-type copper ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/115B22D11/14
Inventor 李华清向朝建李新涛陈忠平
Owner CHINALCO MATERIALS APPL RES INST CO LTD
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