Self-protected flux-cored wire

A technology of flux-cored welding wire and self-protection, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of crack formation, achieve stable performance, good wear resistance, and wide application

Inactive Publication Date: 2013-01-23
HAIMEN WEILING WELDING MATERIAL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of electric arc, there are three main types of arc welding: submerged arc welding, electrode arc welding and flux-cored arc welding. Flux-cored wire is a new type of welding material that has developed rapidly in recent years. Compared with it, it has obvious advantages, mainly changing the intermittent welding process into a continuous production mode, thereby reducing the number of welded joints, improving the quality of welds, and improving production efficiency, but welding of different metals is a is a challenging welding operation, due to the difference in metal composition, the welded joint formed between the two metals of these metals will face great stress, usually resulting in the formation of cracks, therefore, in order to solve the above problems, a new Technical solutions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Self-shielding flux-cored welding wire, the composition of the self-shielding flux-cored welding wire is:

[0028] C 0.1%;

[0029] Cr 30%;

[0030] Mo 10%;

[0031] Ni 0.5%;

[0032] W 3%;

[0033] V 0.05%;

[0034] Nb 10%;

[0035] Mn 0.5%;

[0036] B 5%.

Embodiment 2

[0038] Self-shielding flux-cored welding wire, the composition of the self-shielding flux-cored welding wire is:

[0039] C 3%;

[0040] Cr 20%;

[0041] Mo 5%;

[0042] Ni 3%;

[0043] W 5%;

[0044] V 1%;

[0045] Nb 8%;

[0046] Mn 15%;

[0047] B 3%.

Embodiment 3

[0049] Self-shielding flux-cored welding wire, the composition of the self-shielding flux-cored welding wire is:

[0050] C 7%;

[0051] Cr 40%;

[0052] Mo 0.5%;

[0053] Ni 5%;

[0054] W 10%;

[0055] V 2%;

[0056] Nb 0.5%;

[0057] Mn 20%;

[0058] B 0.5%.

[0059] Self-shielded flux-cored wire is widely used. Adding Nb element to self-shielded flux-cored wire makes the performance of flux-cored wire stable. Mo and V have toughness, and Cr has extremely high hardness. At the same time, the wire has good wear resistance and corrosion resistance. Strong.

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Abstract

The invention relates to a self-protected flux-cored wire. The self-protected flux-cored wire is characterized in that the self-protected flux-cored wire comprises the following components in parts by weight: 0.1% to 7% of C, 1% to 40% of Cr, 0% to 10% of Mo, 0% to 5% of Ni, 0% to 10% of W, 0% to 2% of V, 0% to 10% of Nb, 0.5% to 20% of Mn, and 0% to 5% of B. The self-protected flux-cored wire disclosed by the invention has the advantages that the self-protected flux-cored wire is widely applied and has stable properties due to addition of Nb element, Mo and V have toughness, Cr has extremely high hardness, and meanwhile, the self-protected flux-cored wire is good in wear resistance and strong in corrosion resistance.

Description

technical field [0001] The invention relates to a self-protecting flux-cored welding wire. Background technique [0002] In the field of electric arc, there are three main types of arc welding: submerged arc welding, electrode arc welding and flux-cored arc welding. Flux-cored wire is a new type of welding material that has developed rapidly in recent years. Compared with it, it has obvious advantages, mainly changing the intermittent welding process into a continuous production mode, thereby reducing the number of welded joints, improving the quality of welds, and improving production efficiency, but welding of different metals is a is a challenging welding operation, due to the difference in metal composition, the welded joint formed between the two metals of these metals will face great stress, usually resulting in the formation of cracks, therefore, in order to solve the above problems, a new Technical solutions. Contents of the invention [0003] The object of the p...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B23K35/30
Inventor苏红菱
OwnerHAIMEN WEILING WELDING MATERIAL MFG