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A kind of preparation method of nickel base alloy welding wire with diameter less than 3mm

A nickel-based alloy and welding wire technology, applied in the field of alloys, can solve the problems of difficult deformation, low yield, poor processing plasticity, etc., and achieve the effects of dense organization, uniform composition, and improved strength and hardness

Active Publication Date: 2016-05-04
JIANGSU TOLAND ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Cr28Ni48W5 alloy has a high content of chromium and tungsten, and low content of aluminum, titanium and other elements. Therefore, Cr28Ni48W5 alloy has poor processing plasticity and is a kind of high-temperature welding wire material that is difficult to deform. It is generally used to manufacture thicker welding wire. When the welding wire is thinner, the finished product rate is extremely low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] For the nickel-based alloy welding wire in this example, the composition and mass percentage of the alloy are C: 0.41%, Mn: 1.02%, Si: 0.57%, P: 0.02%, S: 0.02%, Cr: 28.32%, Ni: 49.58 %, Co: 0.08%, Mo: 0.09%, Ti: 0.08%, Al: 0.07%, W: 4.81%, and the rest is iron.

[0031] The specific steps of the preparation method of the nickel-base alloy welding wire of the present embodiment are as follows:

[0032] A. Alloy smelting, batching is carried out according to the composition and mass percentage of the alloy, and the raw materials after surface derusting and oil stains are put into the vacuum induction furnace. After the charging is completed, the vacuum is started until the pressure reaches 0.67Pa, and the electric heating of the furnace material is started. , the temperature is controlled at about 1600°C, and the vacuum degree is controlled at 0.1-1Pa. After the furnace material is melted, immediately add an appropriate amount of massive graphite or other high-carbon ma...

Embodiment 2

[0040] In the nickel-based alloy welding wire of this embodiment, the composition and mass percentage of the alloy are C: 0.45%, Mn: 1.18%, Si: 0.15%, P: 0.02%, S: 0.02%, Cr: 29.51%, Ni: 50.32 %, Co: 0.08%, Mo: 0.09%, Ti: 0.08%, Al: 0.07%, W: 4.15%, and the rest is iron.

[0041] The preparation method of the nickel-based alloy welding wire of this embodiment is the same as that of Embodiment 1.

Embodiment 3

[0043] In the nickel-based alloy welding wire of this embodiment, the composition and mass percentage of the alloy are C: 0.42%, Mn: 1.12%, Si: 0.50%, P: 0.02%, S: 0.02%, Cr: 29.22%, Ni: 50.06 %, Co: 0.08%, Mo: 0.09%, Ti: 0.08%, Al: 0.07%, W: 4.53%, and the rest is iron.

[0044] The preparation method of the nickel-based alloy welding wire of this embodiment is the same as that of Embodiment 1.

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Abstract

The invention relates to a method for preparing a nickel base alloy welding wire. Alloy of the nickel base alloy welding wire comprises, by mass, 0.4%-0.45% of C, 1.0%-1.5% of Mn, 0.15%-1.2% of Si, 0.025% or less of P, 0.02% or less of S, 28%-30% of Cr, 49%-51% of Ni, 0.1% or less of Co, 0.1% or less of Mo, 0.1% or less of Ti, 0.1% or less of Al, 4.0%- 5% of W and the balance being Fe. The method for preparing the nickel base alloy welding wire includes the steps of alloy smelting, electroslag remelting, hot forging and blooming, hot rolling and annealing, acid pickling and coping, cold drawing and hydrogen withdrawing. A CaF2 slag system, an Al2O3 slag system and a CaO slag system are adopted in electroslag remelting. Through the method for preparing the nickel base alloy welding wire, the thin welding wire with the performance meeting requirements can be prepared, and the yield is high.

Description

technical field [0001] The invention relates to a method for preparing welding wire, which belongs to the technical field of alloys. Background technique [0002] Cr28Ni48W5 nickel-based alloy has high temperature resistance and can be made into welding wire for repairing high temperature resistant metal materials. However, Cr28Ni48W5 alloy has a high content of chromium and tungsten, and low content of aluminum, titanium and other elements. Therefore, Cr28Ni48W5 alloy has poor processing plasticity and is a kind of high-temperature welding wire material that is difficult to deform. It is generally used to manufacture thicker welding wire. When the welding wire is thinner, the yield is extremely low. [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-anneali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/40
CPCB23K35/304B23K35/40
Inventor 苏成礼束文武张建国王林涛
Owner JIANGSU TOLAND ALLOY
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