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A high vanadium steel continuous casting flame cutting process

A technology of flame cutting and high vanadium steel, which is applied in the field of flame cutting, can solve the problems of reducing the quality of billets and the inability to effectively cut thick billets, etc., and achieve the effects of high automation, preventing backflow, and ensuring cutting quality

Active Publication Date: 2020-08-14
SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the flame distance of the torch for conventional flame cutting is relatively fixed. If the flame distance is too short, thicker billets cannot be effectively cut. If the flame distance is too long, the cutting surface of the billet will form a trapezoidal surface with a wide top and a narrow bottom. , reducing the quality of the blank after cutting

Method used

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  • A high vanadium steel continuous casting flame cutting process
  • A high vanadium steel continuous casting flame cutting process

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 with 2 The preferred embodiment of the device shown includes the first guide rail 2 arranged on the gantry support 1, the first guide rail 2 is provided with a lifting mechanism 3, the lower end of the lifting mechanism 3 is provided with a cutting torch 4, and the cutting torch 4 is used to move along the Moving horizontally with the first guide rail 2 to cut the cast slab, the gantry support 1 is provided with a second guide rail 5 located below the cast slab, and the second guide rail 5 is provided with a slider 6 that slides synchronously with the lifting mechanism 3 on the first guide rail 2. A slag cleaning gun 7 and an infrared detector 8 are carried on the block 6 . The torch 4 includes a...

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Abstract

The invention discloses a high-vanadium steel continuous casting flame cutting process. The high-vanadium steel continuous casting flame cutting process includes the following steps of preheating, wherein preheating oxygen and fuel gas are conveyed to a cutting gun, the fuel gas is ignited to form preheating flames, and a casting blank is preheated; precutting, wherein combustion supporting oxygenand fuel gas are conveyed to the cutting gun, the preheating oxygen stops being conveyed, cutting flames are formed, and the lengths of the flames are adjusted until the flames penetrate through thecasting blank; and cutting, wherein when the flames penetrate through the casting blank and slag flows to a slag removal tank, the cutting gun is moved and a slag removal gun is started until cuttingoperation is completed, the lengths of the flames can be adjusted according to the thickness of the casting blank, the distances between the flames are matched with the thickness of the casting blank,and the cutting quality of the casting blank is guaranteed.

Description

technical field [0001] The invention relates to a flame cutting method, in particular to a high vanadium steel continuous casting flame cutting process. Background technique [0002] Flame cutting belongs to metal oxidation cutting. It uses flame to preheat the metal to reach the ignition point of the metal, and then gives pure oxygen to make it oxidize and react to oxidized slag with low melting point. At the same time, a large amount of heat is released to further heat the metal to be cut. [0003] At present, the flame distance of the torch for conventional flame cutting is relatively fixed. If the flame distance is too short, thicker billets cannot be effectively cut. If the flame distance is too long, the cutting surface of the billet will form a trapezoidal surface with a wide top and a narrow bottom. , reducing the quality of the blank after cutting. Contents of the invention [0004] In view of this, the present application provides a high-vanadium steel continuou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/126
CPCB22D11/126
Inventor 刘丹汪敏尹文何斌周平
Owner SICHUAN DESHENG GRP VANADIUM & TITANIUM CO LTD
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