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Welding procedure of 0Cr11Ni2MoNbV light sheet material handwork tungsten electrode argon arc

A technology of argon tungsten arc welding and welding technology, which is applied in welding equipment, arc welding equipment, welding/welding/cutting items, etc., can solve the problems of no welding technology, no alloy welding technology data, etc., and achieve good high-temperature mechanical properties , good protection effect and wide application range

Inactive Publication Date: 2009-04-22
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no technical information on the welding of this alloy, and there is no relevant information on its welding technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a 0Cr11Ni2MoNbV thin plate material manual argon tungsten arc welding process, which is characterized in that: in the 0Cr11Ni2MoNbV thin plate material manual argon tungsten arc welding process, 0Cr11Ni2MoNbV is a kind of comprehensive performance of strength and plasticity For martensitic stainless steel, manual tungsten sub-arc welding is used for thin plate materials. The specific welding process is:

[0021] Before welding, the 0Cr11Ni2MoVNb thin plate specimen was polished and scrubbed with acetone solvent. The welding was carried out on a straight seam fixture with a copper backing plate. The back was protected by argon gas. A gas lens was added to the nozzle of the welding torch. Two different Filler metal with high composition, each weld seam is completed by two layers of weld bead, the torch does not swing during welding, and the smaller current is used as much as possible to reduce joint stress and fusion ratio; the test piece filled wi...

Embodiment 2

[0032] This embodiment provides a 0Cr11Ni2MoNbV thin plate material manual argon tungsten arc welding process, which is characterized in that: in the 0Cr11Ni2MoNbV thin plate material manual argon tungsten arc welding process, 0Cr11Ni2MoNbV is a kind of comprehensive performance of strength and plasticity For martensitic stainless steel, manual tungsten sub-arc welding is used for thin plate materials. The specific welding process is:

[0033] Before welding, the 0Cr11Ni2MoVNb thin plate specimen was polished and scrubbed with acetone solvent. The welding was carried out on a straight seam fixture with a copper backing plate. The back was protected by argon gas. A gas lens was added to the nozzle of the welding torch. Two different Filler metal with high composition, each weld seam is completed by two layers of weld bead, the torch does not swing during welding, and the smaller current is used as much as possible to reduce joint stress and fusion ratio; the test piece filled wi...

Embodiment 3

[0044] The invention provides a 0Cr11Ni2MoNbV thin plate material manual argon tungsten arc welding process, which is characterized in that: in the manual tungsten argon arc welding process for the 0Cr11Ni2MoNbV thin plate material, 0Cr11Ni2MoNbV is a horse with comprehensive properties of strength and plasticity For stainless steel, manual tungsten sub-arc welding is used for thin plate materials. The welding process is as follows:

[0045]Before welding, the 0Cr11Ni2MoVNb thin plate specimen was polished and scrubbed with acetone solvent. The welding was carried out on a straight seam fixture with a copper backing plate. The back was protected by argon gas. A gas lens was added to the nozzle of the welding torch. Two different Filler metal with high composition, each weld seam is completed by two layers of weld bead, the torch does not swing during welding, and the smaller current is used as much as possible to reduce joint stress and fusion ratio; the test piece filled with ...

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Abstract

The invention provides a process for welding a 0Cr11Ni2MoNbV veneer material with manual argon tungsten-arc welding. The process comprises the following steps: a veneer sample is subject to polishing and scrubbing by acetone solvent before welding; welding is carried out on a straight slit clamp with a red copper pad; argon protection is aerated to the back of the clamp; gas lens is arranged in a nozzle of a welding gun; filler metal with two different ingredients are adopted during welding respectively; each welding seam is completed by two weld beads with smaller current; a sample of H0Cr20Ni10Ti welding wire with phi of between 1.6 and 2.5 is filled in the welding seam in supplying state before welding; and a sample of H0Cr11Ni2MoVNb welding wire is filled in the welding seam, is subject to quenching and high tempering thermal refining before welding, and is subject to heating treatment for eliminating stress after welding. The invention has the advantages of nice appearance and good inside quality of a welding joint, good mechanical performance of the joint at room temperature and high temperature, good protection effect, high quality of the joint, simple and convenient operation, wide application range and the like.

Description

technical field [0001] The invention relates to the field of material welding, and in particular provides a manual tungsten argon arc welding process for thin plate materials of 0Cr11Ni2MoNbV. Background technique [0002] 0Cr11Ni2MoNbV is a new type of material newly developed in my country in recent years. It is a martensitic stainless steel with comprehensive properties of strength and plasticity. It is used to manufacture casings, shafts, blades and other components of a heavy-duty gas turbine. A large number of welding processes are required in the component manufacturing process. At present, there is no technical information on the welding of this alloy, and there is no relevant information on its welding technology. Contents of the invention [0003] The purpose of the present invention is to provide a 0Cr11Ni2MoNbV thin plate material manual tungsten argon arc welding welding process. [0004] 0Cr11Ni2MoNbV material composition and proportion are: carbon 0.05-0.0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K9/02B23K9/235B23K33/00B23K9/095C21D1/30C21D9/50C21D11/00C21D1/18B23K101/18B23K103/04
Inventor 张琪崔荣繁曲伸秦旭东那旭高山
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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