00Cr20Mo16 welding wire and production process thereof

A 00cr20mo16, production process technology, applied in welding media, manufacturing tools, welding equipment, etc., can solve problems such as the inability to meet the needs of pipeline welding, achieve excellent high temperature oxidation resistance and corrosion resistance, sufficient degassing, reduce gas content and Effects of harmful element content

Active Publication Date: 2020-04-17
JIANGSU XINHUA ALLOY ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the nickel-based welding wire generated based on the national standard basically cannot meet the pipeline welding requirements in this special application environment. Therefore, it is necessary to optimize the element composition and production process of the current nickel-based welding wire to meet higher application requirements.

Method used

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  • 00Cr20Mo16 welding wire and production process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The element composition and the weight percentage of each component of the welding wire are: C is 0.03%, Si is 0.3%, Mn is 0.6%, P is 0.01%, S is 0.01%, Cr is 19.5%, Mo is 15.2%, Cu is 0.06%, Co is 0.06%, Ti is 0.15%, N is 0.03%, Fe is 2.0%, and the balance is Ni.

Embodiment 2

[0046]Wherein, preferably, the chemical composition of the welding wire and the weight percent content of each component are: C is 0.01%, Si is 0.1%, Mn is 0.9%, P is 0.005%, S is 0.005%, Cr is 20.3%, Mo is 16%, Cu is 0.05%, Co is ≤0.04%, Ni-Mg is 0.15%, Ti is 0.1%, N is 0.02%, Fe is 0.5%, and the balance is Ni.

Embodiment 3

[0048] C is ≤0.02%, Si is 0.2%, Mn is 1.0%, P is 0.002%, S is 0.002%, Cr is 21.0%, Mo is 16.5%, Cu is 0.02%, Co is 0.02%, and Ti is 0.05% , N is ≤0.01%, Fe is ≤1.0%, and the balance is Ni.

[0049] The production technology of the 00Cr20Mo16 welding wire of above-mentioned each embodiment of the present invention all adopts following steps:

[0050] Step (1) Vacuum smelting: the raw materials are distributed according to the design, and put into the vacuum furnace for smelting, and the vacuum furnace is evacuated, and when the vacuum degree is lower than 1Pa, the electric smelting is carried out; in this process, new materials are used for smelting, and the existing regulations are implemented. ; Wherein Al and Ni-Mg in the raw material are used as deoxidation;

[0051] Step (2) Electroslag remelting: use 7:3 slag system after baking, and perform electroslag remelting process to obtain steel ingots;

[0052] Step (3) Forging: Forging the steel ingot into a 40mm×40mm forging ...

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Abstract

The invention provides a 00Cr20Mo16 welding wire and a production process thereof. The welding wire is prepared from, by weight percentage, 0-0.03% of C, 0-0.3% of Si, 0.6-1.0% of Mn, 0-0.01% of P, 0-0.01% of S, 19.5-21.0% of Cr, 15.2-16.5% of Mo, 0-0.06% of Cu, 0-0.06% of Co, 0-0.15% of Ti, 0-0.03% of N, 0-2.0% of Fe and the balance Ni. According to the 00Cr20Mo16 welding wire and the productionprocess thereof, by optimizing alloy components and the manufacturing process, the finished product of the welding wire is high in yield and excellent in welding performance and can be applicable to asevere environment.

Description

technical field [0001] The invention relates to the technical field of special welding wires, in particular to a 00Cr20Mo16 welding wire and a production process thereof. Background technique [0002] In the field of chemical and industrial boilers such as boilers in power plants, many pipes are used. These pipes will be in the environment of high temperature, heavy corrosion or continuous liquid erosion during work. Welding and repairing between pipes need to use welding wire, so For welding wires for pipeline welding in these fields, in addition to the welding performance and yield of the welding wire itself, the high temperature oxidation resistance, tensile strength, erosion resistance and corrosion resistance of the welding wire are also very important considerations. At present, the nickel-based welding wire generated based on the national standard basically cannot meet the pipeline welding requirements in this special application environment. Therefore, it is necessar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/0261B23K35/304B23K35/40
Inventor 刘威华大凤王树平邵兴明陈杰华鹏安海峰
Owner JIANGSU XINHUA ALLOY ELECTRIC
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