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Manufacturing method of stainless steel welding wire

A stainless steel and welding wire technology, applied in welding equipment, welding media, manufacturing tools, etc., can solve the problems of poor droplet transition, difficult slag removal, uneven slag coverage, etc., to increase fluidity, avoid slagging, and improve The effect of welding efficiency

Inactive Publication Date: 2018-09-14
淮北百壹领域建筑科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method of stainless steel welding wire, which solves the problems of poor droplet transition, uneven slag coverage, and difficult slag removal during welding.

Method used

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Embodiment 1

[0019] The invention provides a kind of preparation method of stainless steel welding wire, specifically comprises following steps:

[0020] (1) According to the designed welding wire ingredients, use a vacuum electric furnace to melt at a temperature of 1210-1250 ° C and keep warm for 1-1.5 hours to decarburize, dephosphorize and remove harmful impurities from molten steel;

[0021] (2) Put the alloy ingot into a heating furnace with an initial temperature of ≤600°C for heating, raise the temperature to 1210°C-1250°C, keep it warm for 50min-80min, then forge it, forge it into an alloy billet, and cool it to room temperature;

[0022] (3) After the surface of the alloy billet is ground, it is heated to 1080°C to 1120°C for hot rolling, hot rolled into coiled wire, and cooled to normal temperature;

[0023] (4) continuous rolling, the horizontal continuous casting billet starts rolling after cooling;

[0024] (5) Continuous drawing, carry out protective atmosphere annealing tr...

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Abstract

The invention relates to a manufacturing method of a stainless steel welding wire. The method comprises the following steps: smelting through a vacuum electric furnace; heating an alloy ingot in a heating furnace under the initial temperature which is not greater than 600 DEG C; cooling a horizontal continuously-casted steel blank; and then rolling. With the adoption of the method, the oxidation resistance of a welding seam at high temperature can be improved; and meanwhile, Si is a good deoxidizing agent; in addition, the flowability of slags and molten metal can be improved, and meanwhile, the surface of the welding seam is prevented from slag bonding, so that the welding efficiency is improved, and the performance of welding cladding metal as well as the use performance can be achieved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a preparation method of stainless steel welding wire. Background technique [0002] Welding wire is a new type of welding material, which has the advantages of high benefit, low cost and high quality. A series of advantages such as smooth and beautiful seam forming. [0003] Chinese patent document CN101249591 discloses a nickel-based welding wire and its preparation process. The welding wire has a very high nickel content and does not contain tungsten. It is made by vacuum smelting-electroslag remelting-forging-hot rolling-drawing-annealing process . [0004] At present, the production process of flux-cored welding wire in China is basically mature, but due to the limitation of the flux core formula of welding wire, ordinary flux-cored welding wire can meet the requirements of large current and high-efficiency welding in the middle of the welding process, while flux...

Claims

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Application Information

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IPC IPC(8): B23K35/40
CPCB23K35/40
Inventor 郝慧
Owner 淮北百壹领域建筑科技有限公司
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