Ta-Nb composite nickel-based welding wire for nuclear power equipment and welding method thereof

A welding method and composite technology, applied in the direction of arc welding equipment, welding equipment, welding medium, etc., can solve problems such as cracks easily, and achieve the effect of good forming performance, good forming, and no scum

Pending Publication Date: 2019-12-13
HARBIN WELL WELDING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a Ta&Nb composite nickel-based welding wire and welding method for nuclear power equipmen

Method used

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  • Ta-Nb composite nickel-based welding wire for nuclear power equipment and welding method thereof
  • Ta-Nb composite nickel-based welding wire for nuclear power equipment and welding method thereof

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Experimental program
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specific Embodiment approach 1

[0015] Specific Embodiment 1: In this embodiment, a Ta&Nb composite nickel-based welding wire for nuclear power equipment is composed of C: <0.04%, Si: 0.10-0.20%, Mn: 0.5%-1.0%, S: < 0.003%, P: <0.003%, Cr: 28.0%-31.5%, Mo: 3.0%-4.0%, Cu: <0.05%, Nb: 0.5%-1.5%, Ta: 1.0%-4.0%, Ti: 0.4 %~0.9%, Al: <0.50%, Fe: 3%~10%, Ca: <0.005%, Mg: <0.005%, O: <0.005%, N: 0.20%~0.40%, B: <0.001% , Zr: <0.005%, impurity elements: <0.10%, Ni is the balance.

[0016] In this embodiment, the content of Nb is 0.5% to 1.5%, and the content of Ta is 1.0% to 4.0%.

[0017] In this embodiment, the preparation of Ta&Nb composite nickel-based welding wire for nuclear power equipment: use vacuum melting and casting furnace smelting or electric furnace plus refining outside the furnace method to smelt the master alloy billets that meet the above composition according to the weight percentage; the master alloy steel ingots are subjected to conventional forging, Rolling, and then after multi-pass cold dra...

specific Embodiment approach 2

[0018] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the weight percent composition is C: <0.04%, Si: 0.15%, Mn: 0.8%, S: <0.003%, P: <0.003%, Cr : 30%, Mo: 3.5%, Cu: <0.05%, Nb: 1.0%, Ta: 2.5%, Ti: 0.6%, Al: <0.50%, Fe: 5%, Ca: <0.005%, Mg: < 0.005%, O: <0.005%, N: 0.3%, B: <0.001%, Zr: <0.005%, impurity elements: <0.10%, Ni is the balance. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0019] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 is that the weight percent composition is C: <0.04%, Si: 0.12%, Mn: 0.6%, S: <0.003%, P: <0.003%, Cr : 29.5%, Mo: 3.3%, Cu: <0.05%, Nb: 1.2%, Ta: 2.8%, Ti: 0.5%, Al: <0.50%, Fe: 6%, Ca: <0.005%, Mg: < 0.005%, O: <0.005%, N: 0.29%, B: <0.001%, Zr: <0.005%, impurity elements: <0.10%, Ni is the balance. Others are the same as in the first embodiment.

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Abstract

The invention discloses a Ta-Nb composite nickel-based welding wire for nuclear power equipment and a welding method thereof, relates to the technical field of welding materials, and solves the problem that existing welding wires are prone to crack defects under the severe condition of high restraint degree welding. The components of the welding wire consist of C, Si, Mn, S, P, Cr, Mo, Cu, Nb, Ta,Ti, Al, Fe, Ca, Mg, O, N, B, Zr, impurity elements and Ni. The welding method adopts automatic wire filling GTAW (Gas Tungsten Arc Welding). According to the Ta-Nb composite nickel-based welding wirefor the nuclear power equipment and the welding method thereof, when the surfacing thickness of the nickel-based welding wire reaches 30 millimeters, deposited metal still has no crack defect; when the nickel-based welding wire is used for welding, the process parameter adaptability is strong, an arc in a welding process is stable, the wire feeding performance of the welding wire is good, no dross exists, the forming performance is good, and the process performance is good; and micro-alloying of a welding seam is realized, and the welding seam meeting standard requirements is obtained. The Ta-Nb composite nickel-based welding wire for the nuclear power equipment and the welding method thereof are suitable for welding nuclear island main equipment.

Description

technical field [0001] The invention relates to the technical field of welding materials. Background technique [0002] In the ASME standard 5.14, the relevant nickel-based gold-containing welding wire standard ERNiCrFe-13 (UNS No. N06055) composition is: C≤0.03%, Mn≤1.0%, Nb+Ta: 2.1%-4.0%, Cr: 28.5%- 31.0%, Mo: 3%-5%, Ti≤0.5%, Al≤0.5%, Ni: 52.0%-62.0%, S≤0.015%, P≤0.02%, the rest is Fe, and other unavoidable impurities element. [0003] Chinese patent ZL200710138081.1 is a nickel-based alloy weldment, its chemical composition (weight%) is: Cr: 28.5%-31.0%, Fe: 0-16% (7.0%-10.5%), Mn ≤1.0%, Nb+Ta: 2.1%-4.0% (preferably (2.2%-2.8%) Nb+Ta), Mo: 0-7% (3%-5%), Si≤0.50% (0.05% -3%), Ti: 0.01%-0.35%, Al: 0-0.25%, C≤0.03%, Ni: 52.0%-62.0%, S≤0.01%, P≤0.02%, Cu≤1.0%, W≤ 1.0%, Co≤0.5%, B≤0.01% (≤0.001%), Zr≤0.10%, Mg+Ca: 0.002%-0.015%, and the balance is Ni and unavoidable impurities. This kind of welding material contains 2.1%-4.0% (Nb+Ta) (preferably 2.2-2.8%); studies have sh...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K9/167
CPCB23K9/167B23K35/304
Inventor 郭枭陈佩寅徐锴霍树斌周宝金侴树国王国佛宋昌洪冯伟魏涛陈燕陈波
Owner HARBIN WELL WELDING CO LTD
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