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Incorporated manufacturing technique for vacuum steel ladle degassing and vacuum casting a plurality of steel ingots

A vacuum casting and production process technology, which is applied to the integrated production process of vacuum ladle degassing and vacuum casting multiple steel ingots, in the field of vacuum casting method, can solve the problem of tundish mold slag being involved in molten steel, etc., to reduce operating time, The effect of reducing cooling and saving lifting time

Active Publication Date: 2007-08-15
DEQING TIANMA BEARING CO LTD
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Problems solved by technology

[0007] This method is as follows: the ladle pours molten steel into the tundish in the vacuum tank, and then casts one or more steel ingots by the vacuum casting method of the tundish, which prevents the "secondary oxidation" caused by the contact between the molten steel flow and the atmosphere, but the tundish Lining, plug stem sleeve bricks and plug head bricks will still cause inclusions caused by "secondary oxidation" and refractory erosion, and tundish mold slag may also be involved in molten steel, bringing inclusions

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  • Incorporated manufacturing technique for vacuum steel ladle degassing and vacuum casting a plurality of steel ingots

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Embodiment

[0021] As shown in Figures 1 to 3, the name of the device in this embodiment is vacuum tank 13, vacuum tank cover 1, LF ladle 2, upper tank body 3, combined quick connector 4, exothermic agent adding device 5, sliding nozzle 6, lower Tank body 8, ingot plate 9, rotating mechanism 10, vacuum pumping pipeline 11, ladle stand 12;

[0022] According to the tonnage of the required steel ingot and other process requirements, prepare a lower tank body 8 with an inner diameter of 6 meters and an upper tank body 3 with an inner diameter of 6 meters and a partial inner diameter of 3.8 meters. The lower tank body 8 is provided with a rotating mechanism 10 and an ingot disc 9. Place 10 steel ingot molds for upper casting of 3t on the ingot plate 9 in the lower tank body 8, and drive the upper tank body 3 to the top of the lower tank body 8 with the upper tank body lift truck, and then use the upper tank body 3 When aligning with the lower tank body 8, the upper tank body 3 falls down and ...

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Abstract

The invention relates to a method for integrally producing vacuum steel pack degassing and vacuum irrigation multiple steel ingots, for avoiding secondary oxidization, middle pack flameproof material, and steel water pollution. The invention at one time arranges steel water pack and steel ingot on a vacuum pot formed by upper and lower pots and a vacuum pot cover, wherein the multiple steel ingots are swinging arranged on a rotary ingot disc. And the invention first processes VD degassing method, irrigates and feeds when the sliding water opening is toward to the ingot mould, closes water opening and rotates ingot disc, irrigates towards to the next ingot mould till needed number are completed. The invention can directly irrigate degassed steel water into multiple steel ingots, without secondary oxidization and pollution.

Description

technical field [0001] The invention belongs to the field of vacuum furnace refining of molten steel in steelmaking and ingot casting technology, and specifically relates to argon blowing and stirring ladle degassing method in vacuum ladle degassing method and vacuum casting method in vacuum steel flow degassing method, a vacuum ladle degassing method. Integrated production process of gas and vacuum casting multiple steel ingots. Background technique [0002] Most of the existing molten steel mold casting methods are carried out in the atmosphere, and casting in the atmosphere is likely to cause secondary oxidation, generate a large number of inclusions, absorb H and N gases, and cause serious pollution of molten steel, affecting the quality of molten steel. [0003] In order to solve the above problems, the following two methods are mainly used: [0004] 1. Vacuum casting method [0005] The method is as follows: the molten steel ladle refined outside the furnace is poure...

Claims

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Application Information

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IPC IPC(8): B22D9/00B22D35/00B22D41/00
Inventor 马兴法冬日耀许事恩陈康胤
Owner DEQING TIANMA BEARING CO LTD
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