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A device and method for removing inclusions in steel under the action of electric pulses

An electric pulse and inclusion technology, applied in the field of steel continuous casting, can solve the problems of difficult removal of inclusions, high maintenance costs, large energy and capital consumption, etc., and achieve the effects of small footprint, convenient operation, and simple equipment

Active Publication Date: 2019-11-12
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the inclusion control technologies in steel mainly include blowing and stirring, slag washing technology, filtration technology, and centrifugal separation technology. However, these technologies are difficult to remove inclusions with a size smaller than 20 μm, and consume a lot of energy and money, and maintenance costs higher

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  • A device and method for removing inclusions in steel under the action of electric pulses

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] see figure 1 , a device for removing inclusions in steel under the action of electric pulses, including machine base 1, induction furnace 2, electric pulse system, billet drawing device 7, copper plate 8, billet drawing motor 10, and two screw rods are vertically arranged on machine base 1 , the lifting bracket 9 that can move vertically on the two screw rods; the induction furnace 2 is arranged on the base 1 between the first screw rod and the second screw rod, and the drawing motor 10 is arranged on the lifting bracket 9; the copper plate 8 is provided with a cooling circulating water system 11 and is driven by the lifting bracket 9 to move vertically up and down. The drawing device 7 includes a bottom plate arranged at the bottom of the copper plate 8 and a bracket connected to the bottom plate; the bottom plate is passed by the drawi...

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Abstract

The invention discloses a device and method for removing occluded foreign substance in rolled steel under the electric pulse effect. The behavior of removing the occluded foreign substance in the rolled steel under the condition that electric pulses are applied is simulated, billets under different electric pulse application conditions are obtained, morphology, the distribution condition, the particle size, the number and the like of the occluded foreign substance in the billets are analyzed, and influences on the behavior of removing the occluded foreign substance in the rolled steel under the different electric pulse conditions are studied. The device and method have the beneficial effects that (1) equipment is small, the occupied land is small, technological conditions like pulse parameters can be regulated and controlled, and operability is high; (2) laboratory scale casting powder crystallization and heat transfer behavioral study can be achieved, experiment consumption is less, and the analysis and detection cost is low; and (3) experiment operation is simple, and repeatability is high.

Description

technical field [0001] The invention belongs to the technical field of continuous casting of iron and steel, in particular to a device and method for removing inclusions in steel under the action of electric pulses. Background technique [0002] Non-metallic inclusions, which widely exist in the iron and steel smelting process, will reduce the mechanical properties of steel due to their different thermodynamic and mechanical properties from steel. Especially during the service period of steel, non-metallic inclusions will seriously deteriorate the mechanical properties and corrosion resistance of steel, and significantly reduce the service life of steel. Therefore, with the improvement of modern industry's requirements for the purity of steel, the effective control of the number and size of non-metallic inclusions in billets has far-reaching significance. [0003] At present, the inclusion control technologies in steel mainly include blowing and stirring, slag washing techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/00
CPCC21C7/00
Inventor 王万林周乐君应国民朱晨阳张凯旋吕培生谢森林余杰
Owner CENT SOUTH UNIV
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