A high-hardness wear-resistant flux-cored welding wire and its flux-core powder

A technology of flux-cored powder and flux-cored wire, which is applied in the field of high-hardness wear-resistant flux-cored wire and its flux-cored powder, can solve the problems of high welding wire cost, achieve high cladding efficiency, smooth and beautiful forming, and moderate viscosity of cladding metal Effect

Active Publication Date: 2022-03-15
三门峡精恒新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under this working condition, the hardness of common wear-resistant flux-cored welding wires on the market is generally concentrated in the range of 60-66HRC, and generally contains a large amount of precious alloy elements, and the cost of welding wires is relatively high.

Method used

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  • A high-hardness wear-resistant flux-cored welding wire and its flux-core powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Get 10kg of alloy powder, including 3.2kg (32%) of high-carbon ferrochrome, 0.8kg (8%) of chromium carbide, 0.5kg (5%) of ferrosilicon, 1.0 kg (10%) of ferromanganese, 1.4kg (14%) of ferroboron %), TiB 2 Powder 1.8kg (18%), vanadium iron 0.4kg (4%), titanium iron 0.3kg (3%), fluorite powder 0.1kg (1%), sodium fluorosilicate 0.1kg (1%), the balance is Reduced iron powder. The particle size of the obtained powder is such that it can pass through a 60-mesh sieve. Put the various powders taken into the mixer and mix them for 20 minutes to obtain the high-hardness wear-resistant drug core powder.

[0041] Preparation of high-hardness wear-resistant flux-cored wire: refer to the accompanying drawings for the preparation process figure 1 , specifically: select 12×0.4 (12mm in width and 0.4mm in thickness) H08A cold-rolled steel strip. During the forming process of the steel strip, the uniformly mixed powder is added into the U-shaped H08A cold-rolled steel strip groove, an...

Embodiment 2

[0043] Get 10kg of alloy powder, including 3.4kg (34%) of high-carbon ferrochrome, 0.6kg (6%) of chromium carbide, 0.6kg (6%) of ferrosilicon, 1.2 kg (12%) of ferromanganese, 1.2kg (12%) of ferroboron %), TiB 2 Powder 1.4kg (14%), ferrovanadium 0.4kg (4%), titanium iron 0.4kg (4%), fluorite powder 0.1kg (1%), sodium fluorosilicate 0.1kg (1%), the balance is Reduced iron powder. The particle size of the obtained powder is such that it can pass through a 60-mesh sieve. Put the various powders taken into the mixer and mix them for 20 minutes to obtain the high-hardness wear-resistant drug core powder.

[0044] Preparation of high-hardness wear-resistant flux-cored wire: refer to the accompanying drawings for the preparation process figure 1 , specifically: select 12×0.4 (12mm in width and 0.4mm in thickness) H08A cold-rolled steel strip. During the forming process of the steel strip, the uniformly mixed powder is added into the U-shaped H08A cold-rolled steel strip groove, an...

Embodiment 3

[0046] Get 10kg of alloy powder, including 3.4kg (34%) of high-carbon ferrochrome, 0.6kg (6%) of chromium carbide, 0.6kg (6%) of ferrosilicon, 1.2 kg (12%) of ferromanganese, 1.4kg (14%) of ferroboron %), TiB2 1.4kg (14%) powder, 0.3kg (3%) ferrovanadium, 0.6kg (6%) ferrotitanium, 0.1kg (1%) fluorite powder, 0.1kg (1%) sodium titanate, and the balance is reduction Iron powder. The particle size of the obtained powder is such that it can pass through a 60-mesh sieve. Put the various powders taken into the mixer and mix them for 20 minutes to obtain the high-hardness wear-resistant drug core powder.

[0047] Preparation of high-hardness wear-resistant flux-cored wire: refer to the accompanying drawings for the preparation process figure 1 , specifically: select 12×0.4 (12mm in width and 0.4mm in thickness) H08A cold-rolled steel strip. During the forming process of the steel strip, the uniformly mixed powder is added into the U-shaped H08A cold-rolled steel strip groove, and ...

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Abstract

The invention belongs to the technical field of welding materials, and in particular relates to a high-hardness wear-resistant flux-cored welding wire and its flux-core powder. The composition of the drug core includes: 32-38% high-carbon ferrochrome, 4-8% chromium carbide, 5-8% ferrosilicon, 8-12% ferromanganese, 12-16% ferroboron, 12-18% TiB 2 , 3-6% ferrovanadium, 3-6% ferro-titanium, 1-3% fluorite, and the balance is reduced iron powder. The high-hardness and wear-resistant flux-cored welding wire of the present invention has high surfacing hardness, excellent wear-resistant particle wear performance, and smooth and beautiful forming.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and in particular relates to a high-hardness wear-resistant flux-cored welding wire and its flux-core powder. Background technique [0002] In the case of small impact and abrasive wear, the surface of the parts is often surfacing with relatively high hardness wear-resistant flux cored wire, and the surfacing layer is allowed to produce stress relief cracks. Under this working condition, the wear-resistant flux-cored wires that are common in the market have the highest hardness, generally concentrated in the range of 60-66HRC, and generally contain a large amount of precious alloy elements, and the cost of the wire is relatively high. [0003] Chinese patent document CN104959746A discloses a self-shielding flux-cored welding wire for extrusion roll remanufacturing, which uses a low-carbon steel strip as the outer skin, and the flux core components are: high-carbon ferrochromium 20-40%, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/40B23K35/368
CPCB23K35/3053B23K35/406B23K35/368B23K35/0266
Inventor 任重阳李小峰杜光华董景伟
Owner 三门峡精恒新材料科技有限公司
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