Iron-based high-titanium wear-resistant surfacing flux-cored welding wire

A welding wire and high-titanium technology, which is applied in the field of machinery and steel materials, can solve problems such as hardness and toughness mismatch, cracks, etc., and achieve the effects of reducing crack sensitivity, improving wear resistance, and adjusting hardness

Inactive Publication Date: 2010-03-10
王新虎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a wear-resistant alloy for surfacing on the surface of steel tools by overcoming the shortcomings of the current surfacing wear-resistant alloys that do not match the hardness and toughness and have cracks for low-impact and strong abrasive wear conditions. A kind of wear-resistant surfacing welding flux-cored welding wire, the surfacing alloy has high hardness, good toughness, low crack sensitivity, excellent wear resistance and low cost

Method used

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Examples

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Embodiment 1

[0034] An iron-based high-titanium wear-resistant surfacing flux-cored wire, the composition of which is: carbon C 1.9%, titanium Ti 3.0%, vanadium V 2.0%, silicon Si 1.0%, manganese Mn 1.2%, boron B 1.5%, rare earth 0.05% %, chromium Cr 1.3%, molybdenum Mo 0.3%, and the balance is iron.

[0035] The outer sheath of the welding wire is made of H08A thin steel strip specially used for welding wire. The thin steel strip has a width of 16mm and a thickness of 0.3mm, and its composition is 0.08%C, 0.4%Mn, 0.10%Cr, and 0.15%Ni. Flux core can be purchased by mixing special alloy powder for welding wire. The filling factor is 35%. Cerium compound powder, chromium ferroalloy powder, molybdenum ferroalloy powder, etc., these alloy powders are fully mixed evenly, and the amount of each alloy powder is calculated according to formula (1) and formula (2). No slagging agent is added.

[0036] The main method of producing flux-cored welding wire in my country-steel strip method is used to...

Embodiment 2

[0039] An iron-based high-titanium wear-resistant surfacing flux-cored wire, the composition of which is: carbon C 2.2%, titanium Ti 6.0%, vanadium V 3.0%, silicon Si 1.0%, manganese Mn 1.2%, boron B 1.0%, rare earth 0.02 %, chromium Cr 1.3%, molybdenum Mo 0.3%, and the balance is iron.

[0040] The welding wire sheath is made of special H08A thin steel strip for welding wire. The thin steel strip has a width of 16mm and a thickness of 0.3mm. Flux core can be purchased by mixing special alloy powder for welding wire. The filling factor is 35%. Cerium compound powder, chromium ferroalloy powder, molybdenum ferroalloy powder, etc., these alloy powders are fully mixed evenly, and the amount of each alloy powder is calculated according to formula (1) and formula (2). No slagging agent is added.

[0041] The main method of producing flux-cored welding wire in my country-steel strip method is used to produce welding wire. The process flow is: tie the thin steel strip into U shape,...

Embodiment 3

[0044] An iron-based high-titanium wear-resistant surfacing flux-cored wire, the composition of which is: carbon C 2.5%, titanium Ti 8.0%, vanadium V 5.0%, silicon Si 1.0%, manganese Mn 1.2%, boron B 0.5%, rare earth 0.05% %, chromium Cr 1.3%, molybdenum Mo 0.3%, and the balance is iron.

[0045] The welding wire sheath is made of special H08A thin steel strip for welding wire. The thin steel strip has a width of 16mm and a thickness of 0.3mm. Flux core can be purchased by mixing special alloy powder for welding wire. The filling factor is 36%. Cerium compound powder, chromium ferroalloy powder, molybdenum ferroalloy powder, etc., these alloy powders are fully mixed evenly, and the amount of each alloy powder is calculated according to formula (1) and formula (2). No slagging agent is added.

[0046] The main method of producing flux-cored welding wire in my country-steel strip method is used to produce welding wire. The process flow is: tie the thin steel strip into U shape...

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Abstract

The invention relates to an iron-based high-titanium wear-resistant surfacing flux-cored welding wire. Among a plurality of types of the prior wear-resistant surfacing welding wires and alloys, some alloys have favorable wearing resistance, and some alloys have great brittleness, lower toughness and easy cracking and are not suitable for the existence of low-impact grinding wear working condition.The iron-based high-titanium wear-resistant surfacing flux-cored welding wire comprises a low-carbon steel ladle clad and core powder as well as the following alloy elements in percentage by weight:1.0-3.0 C, 1.0-12.0 Ti, 0.5-9.0 V, 0.1-1.5 Si, 0.2-2.0 Mn, 0-3.0 B, 0.00-0.10 RE, 0-13.0 Cr, 0-1.0 Mo, 0-1.0 W, 0-2.0 Ni, 0-0.5 Nb and 0-0.5 Zr. The iron-based high-titanium wear-resistant surfacing flux-cored welding wire realizes the wear-resistant performance of the alloys mainly by carbides and borides formed by the alloy elements of C, Ti, V, and the like as well as a small amount of B element and adjusts the combination of the elements of C, Ti, V, Si, Mn, B, and the like to adjust the alloy hardness, enhance the toughness and lower the crack sensitivity.

Description

technical field [0001] The invention belongs to the fields of machinery, iron and steel materials, etc., and in particular relates to a wear-resistant surfacing flux-cored welding wire for surfacing wear-resistant layers on the surface of steel tools. Background technique [0002] There are many types of wear-resistant surfacing welding wires and alloys, some have good wear resistance, but some alloys are very brittle and have low toughness, so they are not suitable for abrasive wear conditions with low impact; some are suitable for abrasive wear with low impact The alloy of the working condition contains a lot of precious metals such as Nb, W, Cr, Ni, etc., and the cost is relatively high. For example, the Chinese patent wear-resistant surfacing alloy material (application number 200510043305.1) relates to a wear-resistant surfacing alloy material, and its alloy specific composition content (weight %) is: W 5-30, Nb 2-15, V 3-12, Mo 1-8, Cr 1-5, B 2-7, rare earth 0.01-2, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
Inventor 王新虎
Owner 王新虎
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