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ERNiCrMo-11 welding wire and preparation method thereof

A welding wire and raw material preparation technology, which is applied in the field of alloys, can solve problems such as not being able to meet welding requirements, and achieve the effects of improving plasticity, removing non-metallic inclusions, and improving quality and performance

Inactive Publication Date: 2021-04-09
江苏新核合金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the nickel-based welding wire generated based on the national standard basically cannot meet the welding requirements in some special application environments. 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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  • ERNiCrMo-11 welding wire and preparation method thereof
  • ERNiCrMo-11 welding wire and preparation method thereof

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preparation example Construction

[0025] In addition, the present invention also provides a kind of preparation method as above-mentioned ERNiCrMo-11 welding wire, and this preparation method comprises the following steps:

[0026] (1) Raw material preparation: ingredients are distributed according to the design, and all materials are strictly baked according to the system; among them, all materials should meet the vacuum quality requirements, and the surface of the same steel type should be polished and the dosage should be ≤20%; moreover, in the ingredients During the process, the dosage of each element is strictly controlled;

[0027] (2) Vacuum smelting: Put the raw materials into the vacuum furnace for smelting, and follow the welding wire smelting process. The vacuum degree during the melting period is less than 8 Pa, and the vacuum degree during the refining period is ≤8Pa. No less than two high-temperature instant refining and one low-temperature long-term Refining, raising the steel temperature to 148...

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Abstract

The invention provides an ERNiCrMo-11 welding wire and a preparation method thereof. The ERNiCrMo-11 welding wire comprises the following elements in percentage by weight: less than or equal to 0.03 percent of C, less than or equal to 0.8 percent of Si, less than or equal to 1.5 percent of Mn, less than or equal to 0.04 percent of P, less than or equal to 0.02 percent of S, 28 to 31.5 percent of Cr, 0.3 to 1.5 percent of Nb + Ta, 4.0 to 6.0 percent of Mo, 1.0 to 2.4 percent of Cu, 13.0 to 17.0 percent of Fe, less than or equal to 5 percent of Co, 1.5 to 4.0 percent of W, and the balance Ni. According to the ERNiCrMo11 welding wire and the preparation method thereof provided by the invention, by strictly controlling the types and the contents of the elements in the alloy components and optimizing and adjusting the preparation process of the welding wire, the prepared welding wire is good in mechanical property, high in strength and good in high-temperature oxidation resistance and corrosion resistance.

Description

technical field [0001] The invention relates to the field of alloys, in particular to an ERNiCrMo-11 welding wire and a preparation method thereof. Background technique [0002] Nickel-based alloy welding wire has good properties of resistance to active gas, caustic medium and reducing acid medium corrosion, and has the characteristics of high strength, good plasticity, cold and hot deformation, processing and welding, so it is widely used in In petrochemical, metallurgy, atomic energy, marine development, aviation, aerospace and other industries, it is a very important corrosion-resistant metal material to solve engineering corrosion problems that cannot be solved by general stainless steel and other metals and non-metallic materials. Nickel-based alloys refer to alloys that are based on nickel and contain alloying elements, and are corrosion-resistant in some media. Therefore, in addition to the welding performance and yield of the welding wire itself, the high temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/304B23K35/40
Inventor 刘威陈杰戴雪琴黄月华华丽平
Owner 江苏新核合金科技有限公司
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