CN1260260A - Cored welding wire of super-wear-resistant for submerged are build-up welding - Google Patents
Cored welding wire of super-wear-resistant for submerged are build-up welding Download PDFInfo
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- CN1260260A CN1260260A CN 00103065 CN00103065A CN1260260A CN 1260260 A CN1260260 A CN 1260260A CN 00103065 CN00103065 CN 00103065 CN 00103065 A CN00103065 A CN 00103065A CN 1260260 A CN1260260 A CN 1260260A
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- flux
- welding
- powder
- cored wire
- chromium
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Abstract
The ultra-hard hidden arc surfacing flux-cored wire is characterized by that the interior of steel band is filled up with powdered materials of chromium, niobium, molybdenum, tangsten carbide, ferrovanadium, graphite and deoxidant as raw material, then drawn into the invented welding wire whose diameter is 3.2-4.0 mm.
Description
The present invention relates to a kind of super wear-resisting lonely flux-cored wire that buries, belong to the welding alloy material, be used for the hardfacing of the wearing piece of metallurgy, machinery, electric power, chemical field, especially for the hardfacing of built-up welding and reparation blast furnace material distribution groove abrasion-proof backing block and multiple coal pulverizer grinding roller and mill.
The late nineteen eighties, China introduces external blast furnace bell-less stove technology, blast furnace material distribution chute " U " shell body is to be formed by stacking by the built-up welding of multilayer wearing plate, adopt the bright lonely flux-cored wire of external φ 3.2mm, its composition is: carbon: 4.8-6%, chromium: 20-24%, niobium: 6-8%, molybdenum: 6-8%, tungsten: 1.5-2.5%, vanadium: 0.5-1.5%, smog is big during with bright lonely built-up welding, it is many to splash, and the hardfacing alloy layer easily peels off, and recovery is lower, the price height, also have the wear-resisting welding wire of the external trump of a kind of A45-0, filling material has only 45%, environmental pollution during bright weldering, layer easily comes off, its reason is in the composition of welding wire powder chromium and graphite to be arranged, and chromium is different with the carbide institutional framework, and both form the alloy body of various ways when built-up welding: (FeCr)
3, (Fecr)
23C
6, (Fecr)
7Cr
3, can not form high-level Cr
3C
2, therefore, wearability is low, has only 5-10 month service life as the abrasion-proof backing block with this welding wire built-up welding blast furnace material distribution chute, and imitated some external welding wires are also arranged at home, though can reduce import, service life and scuff resistance are all undesirable.
Purpose of the present invention is the shortcoming and deficiency in order to overcome above-mentioned prior art just, and a kind of super wear-resisting lonely flux-cored wire that buries is provided, thereby can improve greatly wearability and service life.
The objective of the invention is to realize by following technical proposal:
A kind of super wear-resisting lonely flux-cored wire that buries is characterized in that being filled with the powder material of following weight proportioning in the welding wire steel band, through being drawn into silk:
Chromium carbide 40-85%
Niobium 3-24%
Molybdenum 3-24%
Tungsten carbide 1-3%
Ferrovanadium 0.5-2.0%
Graphite 2-6%
Deoxidier 1-4%
Deoxidier is a kind of or two or more the combination arbitrarily wherein of manganese, silicon, magnesium, aluminium, rare earth; Filling powder material packing factor is 30-60% in the steel band, and gage of wire is 3.2-4.0mm; Chromium carbide is with powder chromium and carbon black and a small amount of graphite silver gray alloy that vacuum carburization forms under temperature more than 1400 ℃ in vacuum drying oven; The powder material particle diameter is 0.25mm.
Welding wire of the present invention at first carries out carbonization with original chromium powder and graphite powder, promptly generates chromium carbide through vacuum high-temperature, and molecular formula is Cr
3C
2It has fine high temperature resistance oxygen performance, in air, be heated to 1100 ℃ or higher temperature, surface discolouration only, and WC-CO alloy and WC-Ni alloy are that abrupt oxidization is burnt for 900 ℃ fully at 800 ℃, corrosion resistance and wearability are good, the year wear rate 3/5mm only that is subjected in mass fraction is 10% sulfuric acid solution that corundum washes away, corrosion resistance is stainless 30 times of 1Cr18Ni9Ti, in mass fraction 10% sulfuric acid solution and the corrosion resistance in the saturated Hcl solution be 4 times of Wc-Co alloy, be 50 times of Wc-Co alloy to the corrosion resistance of water vapour, hardness is 88-90HRA, the WC-CO alloy phase is worked as, and keeps 600 ℃ and not obvious decline, and density is 6.2g/cm
3Be half of general WC-CO alloy, the coefficient of expansion is little, and is nonmagnetic, therefore can improve the wearability of welding wire, improve 20-50% than similar welding wearability, built-up welding grinding roller and mill, the life-span is improved 3-5 doubly, and price reduces below 1/3, the built-up welding liner plate life-span can reach more than 12 months, and price reduces below 1/3.
Owing to take technique scheme, thereby make technology of the present invention compared with the prior art have following advantage and effect:
A) the welding wire wearability is good, and loadings is big;
B) lonely method built-up welding is buried in employing, good work environment, and the problem of not splashing, layer is firm, does not come off;
C) cost is low.
All there is sale in the raw materials used market of embodiment, and each material purity is: chromium carbide 97%, niobium, molybdenum, tungsten carbide 99%, ferrovanadium＞75%, graphite 95%.
At first evenly mix in proportion and put into vacuum drying oven and form chromium carbide in high-temperature vacuum carbonization more than 1400 ℃ with chromium powder and carbon dust.
Embodiment 1:
Get and produce carbonization chromium powder 40kg, niobium powder 24kg, molybdenum powder 20kg, tungsten carbide powder 3kg, ferrovanadium powder 1kg, graphite powder 2kg, manganese powder 2kg is with the powders mixture of aforementioned proportion, pack in the steel band groove, filling rate 30% is drawn into φ 3.2mm welding wire then, with bury lonely built-up welding valve, mould can improve service life 1-2 doubly.
Embodiment 2:
Get and produce carbonization chromium powder 58.5kg, niobium powder 10kg, molybdenum powder 24kg, tungsten carbide powder 2kg, ferrovanadium powder 0.5kg, graphite powder 4kg, each 0.5kg of silica flour magnesium powder, powders mixture with aforementioned proportion, pack in the steel band groove, filling rate 50% is drawn into φ 4.0mm welding wire then, with burying lonely built-up welding blast furnace material distribution funnel liner plate, can improve service life 50%.
Embodiment 3:
Get and produce carbonization chromium powder 85kg, niobium powder 3kg, molybdenum powder 3kg, tungsten carbide powder 1kg, ferrovanadium powder 2kg, graphite powder 6kg, aluminium powder 1.0kg, manganese powder 2kg, silica flour 1kg, powders mixture with aforementioned proportion, pack in the steel band groove, filling rate 60% is drawn into φ 3.5mm welding wire then, with burying lonely built-up welding coal pulverizer grinding roller and mill, be ni-hard cast iron service life 3-5 doubly.
Claims (5)
1, a kind of super wear-resisting lonely flux-cored wire that buries is characterized in that being filled with the powder material of following weight proportioning in the welding wire steel band, through being drawn into silk:
Chromium carbide 40-85%
Niobium 3-24%
Molybdenum 3-24%
Tungsten carbide 1-3%
Ferrovanadium 0.5-2.0%
Graphite 2-6%
Deoxidier 1-4%
2, flux-cored wire according to claim 1 is characterized in that described deoxidier is a kind of or two or more the combination arbitrarily wherein of manganese, silicon, magnesium, aluminium, rare earth.
3, flux-cored wire according to claim 1 is characterized in that filling powder material packing factor is 30-60% in the described steel band, and gage of wire is 3.2-4.0mm.
4, flux-cored wire according to claim 1 and 2 is characterized in that described chromium carbide is with powder chromium and carbon black and a small amount of graphite silver gray alloy that vacuum carburization forms under temperature more than 1400 ℃ in vacuum drying oven.
5, flux-cored wire according to claim 1 and 2 is characterized in that described powder material particle diameter is 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00103065 CN1112278C (en) | 2000-02-28 | 2000-02-28 | Cored welding wire of super-wear-resistant for submerged are build-up welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00103065 CN1112278C (en) | 2000-02-28 | 2000-02-28 | Cored welding wire of super-wear-resistant for submerged are build-up welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1260260A true CN1260260A (en) | 2000-07-19 |
| CN1112278C CN1112278C (en) | 2003-06-25 |
Family
ID=4576739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00103065 Expired - Fee Related CN1112278C (en) | 2000-02-28 | 2000-02-28 | Cored welding wire of super-wear-resistant for submerged are build-up welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1112278C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463762C (en) * | 2006-05-24 | 2009-02-25 | 首钢总公司 | Half steel roller submerged arc building-up flux-cored wire |
| CN100496865C (en) * | 2007-12-17 | 2009-06-10 | 徐龙江 | High-wearing high performance-cost ratio flux-cored wire |
| CN101804524A (en) * | 2010-03-11 | 2010-08-18 | 华北电力大学 | Powder-cored welding wire for abrasion prevention of grinding roller and grinding disc and cladding method thereof |
| CN101837523A (en) * | 2010-06-11 | 2010-09-22 | 河海大学常州校区 | Titanium reinforced wear-resistance submerged overlaying flux-cored wire |
| CN102400083A (en) * | 2011-11-16 | 2012-04-04 | 燕山大学 | Chromium carbide ceramic thermal-spraying flux-cored wire |
| CN102528333A (en) * | 2010-12-23 | 2012-07-04 | 昆山京群焊材科技有限公司 | Hard-face submerged arc welding wire with buffer function |
| CN107127477A (en) * | 2017-05-17 | 2017-09-05 | 安徽飞弧焊业股份有限公司 | A kind of anticracking flux-cored wire |
| CN107175426A (en) * | 2017-06-02 | 2017-09-19 | 重庆大学 | A kind of self-shield flux-cored wire for having surface peening for heavy-duty forging die and preparation method thereof |
| CN114055011A (en) * | 2021-11-18 | 2022-02-18 | 四川国鑫机械制造有限公司 | Submerged arc welding flux-cored wire, BD2 roller and preparation methods of submerged arc welding flux-cored wire and BD2 roller |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304161C (en) * | 2004-12-23 | 2007-03-14 | 北京工业大学 | High-hardness, wearable, self-protecting metal cored surfacing welding wire |
| CN102896441A (en) * | 2012-10-29 | 2013-01-30 | 海门市威菱焊材制造有限公司 | Core soldering wire for spraying and preparation method thereof |
-
2000
- 2000-02-28 CN CN 00103065 patent/CN1112278C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463762C (en) * | 2006-05-24 | 2009-02-25 | 首钢总公司 | Half steel roller submerged arc building-up flux-cored wire |
| CN100496865C (en) * | 2007-12-17 | 2009-06-10 | 徐龙江 | High-wearing high performance-cost ratio flux-cored wire |
| CN101804524A (en) * | 2010-03-11 | 2010-08-18 | 华北电力大学 | Powder-cored welding wire for abrasion prevention of grinding roller and grinding disc and cladding method thereof |
| CN101804524B (en) * | 2010-03-11 | 2012-05-23 | 华北电力大学 | Powder-cored welding wire for abrasion prevention of grinding roller and grinding disc, preparation method and cladding method thereof |
| CN101837523A (en) * | 2010-06-11 | 2010-09-22 | 河海大学常州校区 | Titanium reinforced wear-resistance submerged overlaying flux-cored wire |
| CN101837523B (en) * | 2010-06-11 | 2013-12-11 | 河海大学常州校区 | Titanium reinforced wear-resistance submerged overlaying flux-cored wire |
| CN102528333A (en) * | 2010-12-23 | 2012-07-04 | 昆山京群焊材科技有限公司 | Hard-face submerged arc welding wire with buffer function |
| CN102528333B (en) * | 2010-12-23 | 2014-04-16 | 昆山京群焊材科技有限公司 | Hard-face submerged arc welding wire with buffer function |
| CN102400083A (en) * | 2011-11-16 | 2012-04-04 | 燕山大学 | Chromium carbide ceramic thermal-spraying flux-cored wire |
| CN107127477A (en) * | 2017-05-17 | 2017-09-05 | 安徽飞弧焊业股份有限公司 | A kind of anticracking flux-cored wire |
| CN107175426A (en) * | 2017-06-02 | 2017-09-19 | 重庆大学 | A kind of self-shield flux-cored wire for having surface peening for heavy-duty forging die and preparation method thereof |
| CN107175426B (en) * | 2017-06-02 | 2019-05-14 | 重庆大学 | A kind of self-shield flux-cored wire and preparation method thereof for heavy-duty forging die tool surface peening |
| CN114055011A (en) * | 2021-11-18 | 2022-02-18 | 四川国鑫机械制造有限公司 | Submerged arc welding flux-cored wire, BD2 roller and preparation methods of submerged arc welding flux-cored wire and BD2 roller |
| CN114055011B (en) * | 2021-11-18 | 2023-02-28 | 四川国鑫机械制造有限公司 | Submerged arc welding flux-cored wire, BD2 roller and preparation method of submerged arc welding flux-cored wire and BD2 roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1112278C (en) | 2003-06-25 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030625 |