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Method and apparatus for improving horizontal continuous casting billet quality by applying composite field

A technology of horizontal continuous casting and compound field, applied in the field of metal continuous casting, can solve the problems of limited scope and effect, and achieve the effect of increasing the stroke and floating time, fast floating speed, and increasing the probability of collision

Inactive Publication Date: 2008-08-20
DALIAN UNIV OF TECH
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Problems solved by technology

This method can improve the uniformity of the melt in the holding furnace, improve the surface quality of the slab, and inhibit the segregation of the melt, but the range and effect of applying the ultrasonic field alone are limited

Method used

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  • Method and apparatus for improving horizontal continuous casting billet quality by applying composite field

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Embodiment Construction

[0020] By setting the power frequency restraint electromagnetic coil 10 outside the crystallizer 7, and setting an inert gas bubble generating device 12 at the center of the bottom of the holding furnace 4, and setting a traveling wave magnetic field generator 5 at the side of the holding furnace 4, the holding furnace 4 is close to the casting port. The power ultrasonic equipment 7 is set at the place, and the Al-1% Si bonding wire blank of Φ10mm is prepared, and the specific steps are as follows:

[0021] Step 1: Preparation of Al-1%Si alloy

[0022] In the resistance furnace, the Al-1% Si alloy is prepared from industrial pure aluminum and aluminum-silicon intermediate alloy, and the alloy is melted to 780°C;

[0023] Step 2: Horizontal continuous casting of Al-1% Si bonding wire billets under the action of composite field

[0024] The alloy is poured into the holding furnace 4, the switch of the inert gas bubble generator 12 is turned on, the traveling wave magnetic field...

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Abstract

The invention relates to a quality improving method for horizontal continuous casting blanks by applying complex field and the device, belonging to the technical field of preparation of metal material, in particular to the technology of applying complex electromagnetic field and ultrasonic field in the continuous casting process of metal casting blanks. The device is characterized in that a generator of inert gas is arranged at the center of the bottom of a holding furnace; a generator of traveling wave magnetic field is arranged on the side of the holding furnace; a power ultrasonic device is arranged on the holding furnace close to the water port; a restriction electromagnetic coil is arranged on the outer side of a crystallizer. The device has the advantages that: firstly, the production technology is simple, the operation is easy, and the efficiency is high; secondly; the disadvantages of easy broken in rolling and drawing process of casting blank due to more impurity and pores is solved; thirdly, the solidification structure of the casting blanks is uniform, the crystal grain is fine, and the casting blanks can be rolled directly at casting state. The quality improving method and the device are mainly used for the field of metal continuous casting.

Description

technical field [0001] The invention belongs to the technical field of metal material preparation, in particular to continuous casting of metal. Background technique [0002] At present, my country has leapt to the first place in the world in the production of metal materials, but compared with developed countries, there are still problems such as low production capacity of high-quality materials, high energy consumption, serious environmental pollution, basic research and new technology development, etc., which directly restrict The development of our country's economy and related technologies. Improving the quality of my country's metal materials and reducing energy consumption are new requirements and challenges for my country's metallurgical industry. my country's continuous casting ratio has exceeded 90%. However, the surface vibration marks, cracks, segregation, internal inclusions and other defects of the existing continuous casting slabs make it unable to meet the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/11
Inventor 李廷举李喜孟张忠涛曹志强温斌王同敏谭家隆
Owner DALIAN UNIV OF TECH
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