Welding wire made of Cr28 Ni48 W5 nickel base alloy

A nickel-based alloy and welding wire technology, applied in the field of alloys, can solve problems such as difficult deformation, poor processing plasticity, and low yield, and achieve the effects of improving plasticity, increasing fluidity, and improving oxidation resistance

Active Publication Date: 2014-07-30
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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] In the nickel-based alloy welding wire of this embodiment, the alloy composition and mass percentage 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 method for preparing the nickel-based alloy welding wire of this embodiment are as follows:

[0032] A. For 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 contamination are put into a vacuum induction furnace. After the charging is completed, vacuum is started until the pressure reaches 0.67Pa, and then electric heating is started. , The temperature is controlled at about 1600℃, and the vacuum degree is controlled at 0.1~1Pa. After the charge is melted, add an appropriate amount of massive graphite or other high-carbon materials for carbon-oxygen reaction. Afte...

Example Embodiment

[0039] Example 2

[0040] In the nickel-based alloy welding wire of this embodiment, the alloy composition and mass percentage 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 the first embodiment.

Example Embodiment

[0042] Example 3

[0043] In the nickel-based alloy welding wire of this embodiment, the alloy composition and mass percentage 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 the first embodiment.

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Abstract

The invention relates to a welding wire made of nickel base alloy. The welding wire comprises the following components by mass percent: 0.4-0.45% of C, 1.0-1.5% of Mn, 0.15-1.2% of Si, less than or equal to 0.025% of P, less than or equal to 0.02% of S, 28-30% of Cr, 49-51% of Ni, less than or equal to 0.1% of Co, less than or equal to 0.1% of Mo, less than or equal to 0.1% of Ti, less than or equal to 0.1% of Al, 4.0-5.0% of W and the balance of Fe. A method for preparing the welding wire comprises the steps of smelting the alloy, remelting electro-slag, carrying out hot forging and cogging down, carrying out hot rolling and annealing, carrying out acid pickling, polishing, carrying out cold drawing and removing hydrogen, wherein a CaF2, Al2O3 or CaO slag system is adopted in the step of remelting the electro-slag. The thinner welding wire can be prepared by the method for preparing the welding wire made of the nickel base alloy, the performances of the welding wire meet the requirements, and the welding wire is high in yield.

Description

technical field [0001] The invention relates to a welding wire and 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 CN 101249591 discloses a nickel-based welding wire and its preparation process. The welding wire has a very high nickel content and does not contain tungsten. become. [0004] Chinese patent document CN 102912151 discloses an ultra-pure electroslag remelting method f...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/36B23K35/40C22C19/05C22C30/00
CPCB23K35/3053B23K35/3605B23K35/40C22C19/055C22C30/00
Inventor 张建国王林涛苏成礼束文武
Owner JIANGSU TOLAND ALLOY
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