Multi-electrode electroslag remelting device and electroslag remelting process for high-nitrogen austenitic stainless steel
A high-nitrogen austenite and electroslag remelting technology, applied in the field of electroslag remelting, can solve the problems of expensive electroslag remelting equipment and complicated operation process, achieve stable alloying, improve yield and power consumption low effect
Pending Publication Date: 2021-02-12
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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[0003] In order to overcome the deficiencies of the prior art and solve the technical problems of expensive high-nitrogen austenitic stainless steel electroslag remelting equipment and cumbersome operating techniques, the present invention provides a multi-electrode electroslag remelting device and electroslag remelting device for high-nitrogen austenitic stainless steel Slag remelting process
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[0017] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Unless otherwise specified, the examples are all in accordance with conventional experimental conditions. In addition, for those skilled in the art, on the premise of not departing from the spirit and scope of the present invention, various modifications or improvements to the material components and dosage in these embodiments all belong to the protection scope of the present invention.
[0018] Such as figure 1 A multi-electrode electroslag remelting device for high-nitrogen austenitic stainless steel is shown, which includes a lifting electrode chuck 1 and an electroslag remelting furnace, wherein: the lifting electrode chuck 1 is arranged in the electroslag remelting furnace Above the furnace mouth, the dummy electrode 2 is installed under the lifting electrode chuck 1, and the consumable electrode 3 is installed under the dummy ele...
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The invention discloses a multi-electrode electroslag remelting device and an electroslag remelting process for high-nitrogen austenitic stainless steel, belongs to the technical field of electroslagremelting, and solves the technical problems that high-nitrogen austenitic stainless steel electroslag remelting equipment is expensive and the operation process is tedious. Nitriding alloys, low-carbon steel, manganese steel and other alloy materials with different elements and different contents are adopted, a plurality of electrode bars with the same length and different diameters are preparedin combination with calculation of the component proportion and the mass fraction of an electroslag ingot, and electroslag remelting of the high-nitrogen austenitic stainless steel is conducted. According to the multi-electrode electroslag remelting device and an electroslag remelting process, alloy elements of different electrode bars can enter a molten pool behind an electroslag layer simultaneously in a molten state according to a certain proportion in a normal pressure or high pressure state, and the components of the alloy elements of the molten pool at different heights before solidification are uniform; and meanwhile, alloying of the nitrogen element is stable in the solidification process, escape and segregation of nitrogen are less, the high content and homogenization of nitrogenare improved to a great extent, and the use performance of the high-nitrogen austenitic stainless steel electroslag steel ingot is effectively improved.
Description
technical field [0001] The invention belongs to the technical field of electroslag remelting, and in particular relates to a multi-electrode electroslag remelting device and an electroslag remelting process for high-nitrogen austenitic stainless steel. Background technique [0002] High-nitrogen austenitic stainless steel, due to the synergistic effect of high content of nitrogen and other alloying elements, makes it have high strength, good toughness and high corrosion resistance. It is used in transportation, aerospace, marine engineering and military industries, etc. fields are widely used. However, during the smelting and solidification process of high-nitrogen austenitic stainless steel, in order to prevent the precipitation of nitrogen, it is necessary to use higher pressure or rapid cooling to achieve rapid solidification of molten steel. The current industrial smelting method is mainly the pressurized electroslag remelting process. , but the pressure electroslag rem...
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Login to view more IPC IPC(8): C22B9/18C22B9/187C22C33/04
CPCC22B9/18C22C33/04
Inventor 何文武王金亮李荣斌陈慧琴李飞孙述利田继红贾晓斌刘建生郭会光
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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