a welding wire

A welding wire and wire technology, applied in the field of alloys, can solve the problems of low yield, poor processing plasticity, difficult deformation, etc., and achieve the effects of improving oxidation resistance, increasing fluidity, and improving plasticity

Active Publication Date: 2016-04-20
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] 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, immediately add an appropriate amount of block graphite or other high-carbon materials for carbon-oxygen reaction, fully deoxid...

Embodiment 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.

Embodiment 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 nickel base alloy welding wire. The components of the nickel base alloy welding wire comprise, by weight, 0.4%-0.45% of calcium, 1.0%-1.5% of manganese, 0.15%-1.2% of silicon, equal to or less than 0.025% of phosphorus, equal to or less than 0.02% of sulfur, 28%-30% of chromium, 49%-51% of nickel, equal to or less than 0.1% of cobalt, equal to or less than 0.1% of molybdenum, equal to or less than 0.1% of titanium, equal to or less than 0.1% of aluminum, 4.0%-5.0% of wolfram, and the rest of iron. The preparing method is alloy smelting, electro-slag re-smelting, hot forging cogging, hot rolling annealing, acid pickling, coping, cold draw and hydrogen back, and the electro-slag re-smelting adopts a calcium fluoride, aluminum oxide and calcium oxide slag system. The preparing method of the nickel base alloy welding wire can produce the fine welding wire which can satisfy the requirement of the performance, and the yield is high.

Description

Technical field [0001] The invention relates to a welding wire, belonging to the technical field of alloys. Background technique [0002] Cr28Ni48W5 nickel-based alloy has high high temperature resistance and can be made into welding wire for repairing high temperature resistant metal materials. However, Cr28Ni48W5 alloy contains high content of chromium element and contains tungsten element, and low content of elements such as aluminum and titanium. Therefore, Cr28Ni48W5 alloy has poor processing plasticity and is a difficult-to-deform high-temperature welding wire material. It is generally used to make thicker welding wire. When the wire is thinner, the yield rate 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-wire drawing-annealing process . [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/36B23K35/40C22C19/05C22C30/00C21D9/52C22F1/10C22F1/00
CPCB23K35/304B23K35/40
Inventor 张松彪吴伟周理想张建国
Owner JIANGSU TOLAND ALLOY
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