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Self-shielded flux-cored wire for extrusion roller remanufacturing

A flux-cored welding wire and remanufacturing technology, applied in manufacturing tools, welding media, welding equipment, etc., can solve the problems of composition segregation, influence of squeeze roller life, poor performance uniformity of surfacing layer, etc., to achieve uniform hardness, Good weldability and anti-blocking performance, excellent effect of surfacing process performance

Inactive Publication Date: 2015-10-07
盐城市成功机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mature flux-cored wires currently on the market are strengthened by a single element, which often causes component segregation, resulting in poor uniformity of the surfacing layer and affecting the life of the extrusion roller.

Method used

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  • Self-shielded flux-cored wire for extrusion roller remanufacturing
  • Self-shielded flux-cored wire for extrusion roller remanufacturing
  • Self-shielded flux-cored wire for extrusion roller remanufacturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]Common carbon steel strip H08A is used, with a thickness of 0.3mm and a width of 16mm.

[0048] The composition of the drug core is: 200g high-carbon ferrochromium, 400g chromium carbide, 50g ferromolybdenum, 100g ferrovanadium, 50g ferroniobium, 50g graphite, 30g aluminum magnesium, 23g electrolytic manganese, 25g ferrosilicon, 30g ferroboron, 9g barium carbonate, Fluorite 10g, marble 15g, zircon sand 8g, a total of 1000g powder, the filling rate is 48%~50%.

example 2

[0050] 400g high-carbon ferrochrome, 300g chromium carbide, 150g ferromolybdenum, 10g ferro-vanadium, 10g ferro-niobium, 10g graphite, 10g aluminum-magnesium, 23g electrolytic manganese, 25g ferrosilicon, 20g ferro-boron, 9g barium carbonate, 10 fluorite, marble 15g, zircon sand 8g, a total of 1000g powder, the filling rate is 48%~50%.

example 3

[0052] 250g high-carbon ferrochrome, 350g chromium carbide, 80g ferromolybdenum, 80g ferro-vanadium, 35g ferro-niobium, 40g graphite, 10g aluminum-magnesium, 23g electrolytic manganese, 35g ferrosilicon, 30g ferro-boron, 14g barium carbonate, 5g fluorite, marble 20g, sodium fluorosilicate 13g, zircon sand 15g, a total of 1000g powder, the filling rate is 48%~50%.

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Abstract

The invention discloses a self-shielded flux-cored wire for extrusion roller remanufacturing. A mild-carbon steel strip is employed as the skin of the self-shielded flux-cored wire. The component of the flux comprises, by mass, 20%-40% of high carbon ferrochrome, 20%-40% of chromium carbide, 5%-20% of ferromolybdenum, 1%-10% of ferrovanadium, 1%-5% of ferroniobium, 1%-5% of graphite, 1%-5% of aluminum-magnesium, 1%-4% of electrolytic manganese, 1%-4% of ferrosilicon and 1%-4% of ferroboron, and the weight ratio is 44%-52%. The hardness of the surfacing alloy manufactured by the use of the self-shielded flux-cored wire can reach HRC60, and the surfacing alloy is fine and uniform in crack, is high in wear resistance, is high in shock resistance, and is suitable for being employed as a working layer in an extrusion roller remanufacturing process in a cement plant.

Description

technical field [0001] The invention relates to a self-protecting flux-cored welding wire for remanufacturing extrusion rollers, belonging to the field of remanufacturing materials. Background technique [0002] As an important part of green manufacturing, remanufacturing is the most effective way to solve the problems of resource and energy shortage and environmental pollution that our country currently faces. One of the technical approaches, which has been widely recognized by the country, the manufacturing industry and the general public. [0003] Roller press is a kind of grinding equipment for brittle materials. It is suitable for grinding cement clinker, granular blast furnace slag, cement raw materials, gypsum, coal, quartz sand and iron ore, etc. It is widely used in various fields, especially in the cement industry. Huge amount. Its important part is the squeeze roller. The life of the squeeze roller is different for different types of processed materials, ranging...

Claims

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Application Information

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IPC IPC(8): B23K35/24B23K35/368
Inventor 倪新慧贾林喜
Owner 盐城市成功机械制造有限公司
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