High-wearing high performance-cost ratio flux-cored wire

A flux-cored welding wire, cost-effective technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of poor wear resistance of flux-cored welding wire, high price of imported flux-cored welding wire, and save steel and duplication of labor , easy to popularize and apply in a large area, good toughness effect

Inactive Publication Date: 2008-05-21
徐龙江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the common problems of wear-resistant surfacing flux-cored wires are: low-priced flux-core...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Drug core formula:

[0017] Powdered graphite 4.5%

[0018] High carbon ferrochrome 65%

[0019] Medium carbon ferromanganese 3.2%

[0020] 45 ferrosilicon 2.5%

[0021] Ferrovanadium 3.5%

[0022] Aluminum iron 3%

[0023] Reduction of iron powder balance.

[0024] The filling rate is 45%.

[0025] Manufacturing method: It is manufactured by steel strip method. Cut the steel strip into a certain width steel strip→clean→dry the steel strip→roll the steel strip into a "U"-shaped groove in the forming machine unit→add powder according to the ratio through the powder adding unit→join the edges in the seaming unit →The diameter is reduced to the required diameter by the wire drawing unit →Enter the wire take-up machine →The finished flux-cored wire.

[0026] The average hardness of welding wire surfacing layer is HRC52.

Embodiment 2

[0028] Drug core formula:

[0029] Powdered graphite 6%

[0030] High carbon ferrochrome 70%

[0031] Medium carbon ferromanganese 405%

[0032] 45 ferrosilicon 3%

[0033] Ferrovanadium 2%

[0034] Ferromolybdenum 4%

[0035] Restore the balance of iron powder.

[0036] The fill rate is 60%.

[0037] Manufacturing method is the same as embodiment 1.

[0038] The average hardness of welding wire surfacing layer is HRC59.

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PUM

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Abstract

The invention discloses a flux-cored wire with high abrasion resistance and high performance/cost ratio, an external wrapper of which adopts H08A low carbon steel. The invention is characterized in that: a filling rate of the wire is 30 to 70 percent, percentages by weight of components of the wire and other components are: powdered graphite is 2 to 12 percent, high carbon ferrochromium is 25 to 85 percent, mid-carbon fe-mn is 2 to 15 percent, 45 ferrosilicon alloy is 1 to 7.5 percent, ferrovanadium is 1 to 26 percent, ferromolybdenum is 1 to 10 percent and reduced iron powder accounts for the residual percentage. The beneficial effects of the invention are that: the wire is processed through ordinary metal alloy powder lot, no pure metal or compound is needed, and the cost is relatively lower but the abrasion resistance is relatively higher, thereby being favorable for popularizing and applying widely.

Description

Background technique [0001] Flux cored wire is developed on the basis of tubular electrodes. Because the flux-cored wire has the advantages of stable arc, small spatter, beautiful shape, and the flux core formula can be adjusted according to the mechanical properties of the weld, it can be manufactured in large quantities and used continuously in actual welding. Compared with solid welding wire and manual welding rod, the production efficiency is high, the operating environment of welders is improved, and the comprehensive advantages of flux-cored welding wire are very popular among people. At present, flux cored wire has been widely used in construction, bridge, chemical industry, metallurgy, electric power and other manufacturing and repair industries. [0002] At present, the common problems of wear-resistant surfacing flux-cored wires are: low-priced flux-cored wires have poor wear resistance, and the price of imported flux-cored wires with good wear resistance is too hig...

Claims

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Application Information

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IPC IPC(8): B23K35/30
Inventor 徐龙江
Owner 徐龙江
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