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A kind of high-niobium flux-cored welding wire used for hard surface repair of roller press and preparation method thereof

A technology of flux-cored welding wire and roller press, applied in the field of welding, can solve the problem of no slag removal, and achieve the effect of reducing slag sticking and improving slag removal.

Active Publication Date: 2022-05-31
北京奥邦新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to solve the problem of good slag removal that has not appeared in the market today

Method used

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  • A kind of high-niobium flux-cored welding wire used for hard surface repair of roller press and preparation method thereof
  • A kind of high-niobium flux-cored welding wire used for hard surface repair of roller press and preparation method thereof
  • A kind of high-niobium flux-cored welding wire used for hard surface repair of roller press and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

Embodiment 1

[0042] The cold-rolled SPCC low carbon steel strip of 16X0.3 (width 16mm, thickness 0.3mm) is selected and rolled into a U shape. take the oxygen

[0043]

[0045] is the total length of the weld bead;

[0046] is not the slag removal length;

[0048] is the slightly sticky slag length.

Embodiment 2

[0051] The cold-rolled SPCC low carbon steel strip of 16×0.3 (width 16mm, thickness 0.3mm) is selected and rolled into a U shape. take the oxygen

[0052]

[0054] is the total length of the weld bead;

[0055] is not the slag removal length;

[0056] is a severe sticky slag length;

[0057] is the slightly sticky slag length.

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Abstract

The invention relates to a high-niobium flux-cored welding wire used for repairing the hard surface of a roller press and a preparation method thereof, and relates to the field of welding technology, including a flux core and a steel strip, and the steel strip covers the flux core; wherein the flux core contains a weight ratio 20% to 35% oxide, 10% to 30% fluoride by weight, 2% to 5% kyanite powder by weight, and 10% to 15% carbonate by weight , Calcium sulfide with a weight ratio of 1% to 4% and a metal alloy including ferroniobium with a weight ratio of 30% to 45%; the steel strip adopts a cold-rolled SPCC low-carbon steel strip, and the present invention has the advantages of adjusting the flux core of the welding wire The advantages of improving the slag detachability of the flux-cored wire are to improve the physical and chemical properties of the slag, the coefficient of linear expansion, and the microscopic appearance of the slag.

Description

A kind of high niobium flux-cored welding wire for hard surface repair of roller press and preparation method thereof technical field The present invention relates to welding technology field, relate in particular to a kind of high niobium flux-cored welding wire for hard surface repair of roller press and its preparation method. Background technique [0002] The roller press is a widely used high-efficiency and energy-saving grinding equipment, especially suitable for the pre-grinding of cement clinker. and And it is also very effective for the grinding of limestone, blast furnace slag, lime sandstone, raw coal, gypsum, quartz sand, iron ore, etc. roller mill The surface of the roller is subjected to high stress abrasive wear, and the working conditions are extremely harsh, and wear will inevitably occur after a period of use. in addition Due to foreign objects such as iron blocks or improper operation, the gap between the roll gaps is too small, etc., the roller s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/12B23K35/40
CPCY02P10/20
Inventor 王存王斌王一辛
Owner 北京奥邦新材料有限公司
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