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High-hardness stainless steel flux-cored wire

A technology of flux-cored welding wire and stainless steel, which is applied in welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problem that the hardness and wear resistance of flux-cored welding wire cannot meet the requirements, and achieve good welding effect and wear resistance. The effect of good performance and high weld strength

Inactive Publication Date: 2016-11-23
天长市通联焊业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, the hardness and wear resistance of flux-cored welding wire can not meet the demand and need to be improved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high-hardness stainless steel flux-cored welding wire, comprising a stainless steel sheath and a flux core, the components of the flux core include: Mn: 1.5%, Si: 0.8%, W: 0.15%, Cr: 32%, Ni: 10%, N: 0.45%, C: 1.9%, B: 0.75%, Ti: 0.4%, S: ≤ 0.03%, P: ≤ 0.04%, and the balance is Fe and inevitable impurities.

Embodiment 2

[0021] A high-hardness stainless steel flux-cored welding wire, comprising a stainless steel sheath and a flux core, the components of the flux core include: Mn: 2.5%, Si: 0.4%, W: 0.28%, Cr: 28%, Ni: 13%, N: 0.2%, C: 1%, B: 0.3%, Ti: 0.95%, S: ≤ 0.03%, P: ≤ 0.04%, and the balance is Fe and inevitable impurities.

Embodiment 3

[0023] A high-hardness stainless steel flux-cored welding wire, comprising a stainless steel sheath and a flux core, the components of the flux core include: Mn: 1.8%, Si: 0.7%, W: 0.2%, Cr: 31%, Ni: 11%, N: 0.38%, C: 0.8%, B: 0.6%, Ti: 0.6%, S: ≤ 0.03%, P: ≤ 0.04%, and the balance is Fe and inevitable impurities.

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PUM

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Abstract

The invention discloses a high-hardness stainless steel flux-cored welding wire, which includes a stainless steel sheath and a flux core, and the components of the flux core include: Mn: 1.5-2.5%, Si: 0.4-0.8%, W: 0.15-% 0.28%, Cr: 28‑32%, Ni: 10‑13%, N: 0.2‑0.45%, C: 0.6‑2%, B: 0.3‑0.75%, Ti: 0.4‑0.95%, S: ≤0.03% , P: ≤0.04%, the balance is Fe and unavoidable impurities. The invention has high hardness and good wear resistance.

Description

technical field [0001] The invention relates to the technical field of flux-cored welding wires, in particular to a high-hardness stainless steel flux-cored welding wire. Background technique [0002] After a hot forging die is used thousands of times, the die cavity needs to be repaired. The repaired mold can reach or even exceed the life cycle before the repair. At present, the repair of hot forging dies in China mainly uses surfacing electrodes, which is inefficient. The use of flux-cored wire repair can realize continuous welding and improve production efficiency. The slag of the flux-cored wire is far less than that of the electrode, which improves the deposition rate and reduces the workload of slag cleaning. However, at present, the hardness and wear resistance of flux-cored welding wire cannot meet the demand and need to be improved urgently. SUMMARY OF THE INVENTION [0003] Based on the technical problems existing in the background art, the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/368
CPCB23K35/368
Inventor 卢齐元
Owner 天长市通联焊业有限公司
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