Flux-cored steel belt for build-up welding and preparation method thereof

A technology for steel strips and medicines, applied in welding equipment, manufacturing tools, welding media, etc., can solve the problems of difficult manufacturing, limited application scope, and few varieties, and achieve the effects of low production cost, expanded application scope, and increased variety.

Inactive Publication Date: 2008-11-19
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the existing surfacing materials, especially the hard-wearing strips for surfacing, which are extremely difficult to manufacture, few in variety, and limited in application range, the present invention proposes a new type of flux-cored steel strip for surfacing and its preparation method

Method used

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  • Flux-cored steel belt for build-up welding and preparation method thereof
  • Flux-cored steel belt for build-up welding and preparation method thereof
  • Flux-cored steel belt for build-up welding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Select the H08A cold-rolled steel strip with a width of 39mm and a thickness of 0.3mm, and use the existing cored wire production equipment for steelmaking to roll it into a U-shaped cross-section along the length direction (longitudinal direction) of the steel strip ;

[0055] (2) add medicated powder in above-mentioned U-shaped pit, filling rate is 48%, wherein: the particle diameter of described medicated powder is less than 120 μ m, and medicated powder composition is in parts by weight (kg), comprises high-carbon ferrochrome 60, vanadium iron 8, 75# ferrosilicon 5, high carbon ferromanganese 1, aluminum magnesium alloy 5, ferroboron 4, ferrotitanium 5, ferromolybdenum 6 and fluorite 2;

[0056] The medicated powder is applied after 10 minutes of powder mixing using a conventional powder mixer;

[0057] (3) Connect the transverse edge of the U-shaped steel strip with a U-shaped cross-section after adding the powder in the form of a bite (see figure 1 ), so tha...

Embodiment 2

[0062] (1) Select the H08A cold-rolled steel strip with a width of 130mm and a thickness of 0.4mm, and use the existing cored wire production equipment for steelmaking to roll it into a U-shaped cross-section along the length direction (longitudinal direction) of the steel strip ;

[0063] (2) Add medicated powder in above-mentioned U-shaped pit, filling rate is 55%, wherein: the particle diameter of described medicated powder is less than 120 μ m, and medicated powder composition is in parts by weight (kg), comprises high-carbon ferrochrome 70, ferro-vanadium 10, 75# ferrosilicon 1, high-carbon ferromanganese 1, aluminum-magnesium alloy 2, ferroboron 12, ferro-titanium 3, ferro-niobium 1, ferro-molybdenum 3 and graphite 4;

[0064] The medicated powder is applied after 20 minutes of powder mixing using a conventional powder mixer;

[0065] (3) Connect the transverse edge of the U-shaped steel strip with a U-shaped cross-section after adding the powder in the form of a bite (...

Embodiment 3

[0070] (1) Select the Q195 cold-rolled steel strip with a width of 45mm and a thickness of 0.3mm, and use the existing steelmaking cored wire production equipment to roll it into a U-shaped cross-section along the length direction (longitudinal direction) of the steel strip ;

[0071] (2) add medicinal powder in above-mentioned U-shaped pit, filling rate is 50%, wherein: the particle diameter of described medicinal powder is less than 120 μ m, and medicinal powder composition is in parts by weight (kg), comprises high-carbon ferrochrome 65, vanadium iron 5, 75# ferrosilicon 4, high-carbon ferromanganese 2, aluminum-magnesium alloy 5, ferroboron 6, ferro-titanium 4, ferromolybdenum 5, fluorite 2 and potassium titanate 2;

[0072] The medicated powder is applied after 15 minutes of powder mixing using a conventional powder mixer;

[0073] (3) Connect the transverse edge of the U-shaped steel strip with a U-shaped cross-section after adding the powder in the form of a bite (see ...

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Abstract

The invention discloses a resurfacing welding used drug cored steel strap and the preparation method. The steel strap is prepared from a mild steel strap and drug powder enwrapped therein, the shape of the steel strap is a tube with the longitudinal cross-section to be in a long and flat shape or in a similar rectangle shape, the longitudinal length can be determined randomly, and the transverse sides of the steel strap are connected in a seam manner or a related joint manner; the drug powder is uniformly filled in the tube rolled from the steel strap, wherein the particle diameter of the drug powder is smaller than 120 Mum, the components include (by weight) 45-70 parts of high carbon ferrochrome, 5-35 parts of ferrovanadium, 1-8 parts of No.75 ferrosilicon, 1-10 parts of high carbon ferromanganese, 2-16 parts of ferroboron, 1-8 parts of ferrotitanium, 0-5 parts of ferroniobium, 2-8 parts of ferromolybdenum, 0-10 parts of graphite, 0-5 parts of fluorite and 0-6 parts of potassium titanate. The drug cored steel strap adopting the invention can efficiently improve the abrasion resistance of the metal on the resurfacing welding layer and the stability of the electric arc, and can be coiled into coils, thereby being suitable for continuous automatic resurfacing welding.

Description

technical field [0001] The invention relates to a welding material, in particular to a surfacing flux-cored steel strip and a preparation method thereof. Background technique [0002] Most of the mechanical parts are made of metal materials, and wear will occur due to the relative movement between parts or between parts and materials. With the development of modern industry, mechanical parts often work under extremely complex and harsh conditions, and a large number of mechanical equipment are often scrapped due to wear and tear. This requires the surface of mechanical equipment under heavy loads and other working conditions to have good durability. grinding performance. [0003] It is a common method to manufacture or repair wear-resistant parts at present to prepare a wear-resistant alloy layer on the metal surface by surfacing welding, thermal spraying, vapor deposition, electroplating and other technologies. Surfacing welding is widely used because of its simple proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/22B23K35/30B23K35/36B23K35/40
Inventor 孙俊生王冶朱强刘景春
Owner SHANDONG UNIV
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