Mold and electroslag remelting device for metal electroslag remelting and electroslag remelting method
A technology of electroslag remelting and crystallizer, applied in the field of metal smelting, can solve the problems of slow cooling speed and coarse as-cast structure, and achieve the effect of improving cooling speed
Active Publication Date: 2022-04-19
ZHEJIANG ZHENGDA MOLD
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Problems solved by technology
However, domestically produced high-speed steel electroslag ingots above φ300 have coarse as-cast structures due to slow cooling speed. Therefore, the domestic production experience is that the performance of large round steel produced with large ingots and large forging ratios is not as good as that of medium ingots. Large round steel with medium forging ratio
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[0045] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0046] Such as figure 1As shown, the electroslag remelting device includes an upper column, an upper lifting arm, an upper lifting drive device, a chuck, a crystallizer, a bottom water tank, a lower column, a lower lifting drive device and a lower lifting arm, and the bottom water tank and the lower lifting arm It is fixedly connected and facing up and down with the lower outlet of the mold. The lower lifting drive device drives the bottom water tank and the lower lifting arm to lift up and down along the lower column. The chuck is fixedly connected with the upper lifting arm and is facing up and down with the upper inlet of the mold. The lifting drive device drives the upper lifting arm and chuck to move up and down along...
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The invention provides a crystallizer for metal electroslag remelting, an electroslag remelting device and an electroslag remelting method, belonging to the technical field of metal smelting. It solves the problem that large-scale electroslag ingots cannot be produced at present. The crystallizer for metal electroslag remelting includes an upper crystallization chamber, a middle crystallization chamber and a lower crystallization chamber which are stacked sequentially from top to bottom. The three crystallization chambers respectively have an upper melting chamber, a middle melting chamber and a lower The melting chamber, the middle melting chamber is in the shape of an inverted cone, the big end is connected with the upper melting chamber, and the small end is connected with the lower melting chamber. In the invention, the solidified electroslag ingot is drawn out from the crystallizer without affecting the stability of the whole electroslag process, and the high-temperature electroslag ingot is directly water-cooled to increase the cooling speed. The special crystallizer structure can ensure that when the electroslag ingot is water-cooled, the large drop in temperature will not affect the temperature field of the slag in the high-temperature molten pool, so that the electroslag remelting can proceed smoothly.
Description
technical field [0001] The invention belongs to the technical field of metal smelting, and relates to a crystallizer for metal electroslag remelting, an electroslag remelting device and an electroslag remelting method. Background technique [0002] High-speed steel is a high-alloy tool steel containing carbon (C), tungsten (W), molybdenum (Mo), chromium (Cr), vanadium (V), cobalt (Co) and other elements. It has high heat resistance and toughness after heat treatment , when the use temperature is as high as 600 ℃, the hardness does not decrease significantly. According to the chemical composition, high-speed steel can be divided into ordinary high-speed steel and high-performance high-speed steel. According to the manufacturing process, it can be divided into smelting high-speed steel and powder metallurgy high-speed steel. System etc. Powder metallurgy high-speed steel has not been produced in China due to its high technical difficulty. [0003] The main application areas...
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IPC IPC(8): C22B9/193C22B9/18
CPCC22B9/18
Inventor 吕广奇
Owner ZHEJIANG ZHENGDA MOLD