CN1180602A - Abrasion-resistant surfacing welding electrode for concrete transfer pump - Google Patents
Abrasion-resistant surfacing welding electrode for concrete transfer pump Download PDFInfo
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- CN1180602A CN1180602A CN 96119492 CN96119492A CN1180602A CN 1180602 A CN1180602 A CN 1180602A CN 96119492 CN96119492 CN 96119492 CN 96119492 A CN96119492 A CN 96119492A CN 1180602 A CN1180602 A CN 1180602A
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Abstract
An antiwear surfacing electrode for concrete delivering pump has core of low-carbon steel and chemical coating that contains such components (Wt.%) as marble (3-11), fluorite (2-8), quartz (0.5-2.0), titanium dioxide ().5-2.0), high-carbon ferrochromium (30=50), ferromolybdenum (9-15), ferrovanadium (4-9), ferroneobium (2-5), ferrotitanium (4-9), middle-carbon ferromangness (2-*), ferrosilicon N.45 (1-8), tungsten carbide (2.0-4.0) and graphite (10-20). Its advantages include high antiwear nature, long service life, low cost and no need of preheating before welding and tempering after welding.
Description
The present invention relates to a kind of surfacing welding, especially for the hardfacing electrode of concrete pump.
At present, concrete pump mostly adopts S pipe valve distribution structure, and concrete is in continuous conveying process, and the S pipe swings back and forth fast together with floating bushing and fixed liner plate forms so-called end face seal, and forms heavy wear.Making existing excellent in toughness in production practices, the S valve of the single metal material of high-wearing feature is arranged again is difficult, and the more satisfactory approach of wearability problem that solves above-mentioned friction pair is a build-up wear-resistant excellent material on the operative end surface of good-toughness matrix.Still there is not at present the surfacing welding that is specifically designed to concrete pump, but existing several surfacing weldings are used for concrete pump, the characteristics of these several welding rods are: though rich chromium cast iron surfacing welding metal hardness height, but wear no resistance, so service life, (pressing concrete accumulative total conveying capacity calculated, down together) low, generally in 5000m
3Below; Co-Cr-W is that the surfacing welding wearability is more preceding a kind of high, but the cost height; General hardfacing electrode, then workpiece needs weld preheating, postwelding tempering, and is lower than 8000 meters service life
3
The purpose of this invention is to provide a kind of hardfacing electrode that is used for concrete pump, this welding rod wearability height, long service life, cost is low and weldering before not preheating, not tempering of postwelding.
The object of the present invention is achieved like this, the hardfacing electrode that is used for concrete pump provided by the invention comprises core wire and coating, and the component of coating and percentage by weight are: marble 3～11, fluorite 2～8, quartz 0.5～2.0, titanium dioxide 0.5～2.0, high carbon ferro-chrome 30～50, molybdenum-iron 9～15, vanadium iron 4～9, ferro-niobium 2～5, ferrotianium 41～9, mid-carbon fe-mn 2～8,45
#Ferrosilicon 1～8, tungsten carbide 2.0～4.0, graphite 10～20.Core wire is a low carbon steel welding core.
The hardfacing electrode that is used for concrete pump provided by the present invention mainly relies on to be embedded in to have sufficient intensity and suitable hardness matrix and is the carbide that disperse distributes and improves wearability, concrete measure is: quantity and the ratio of 1, adjusting deposited metal carbon and carbide former, make the carbide that has sufficient amount, higher hardness in the deposited metal, the ratio of main carbide former and carbon in the control deposited metal; Increase the kind of carbide former, as adding molybdenum, vanadium, titanium, niobium etc.; Directly carbide is added in the coating, as adding tungsten carbide.2, adjust the hardfacing alloy number of elements to obtain the matrix that it has sufficient intensity and suitable hardness and toughness, in deposited metal, add more carbide former to reduce the content of carbon in the matrix, increase deposited metal mesometamorphism agent (as vanadium, titanium etc.) to improve the toughness of deposited metal matrix, keep enough intensity simultaneously.3, improve the structure and the distribution of carbide, result of the test show be carbide that intermittently bar-shaped, graininess distributes than to skeleton, to be toughness height, the wearability of the carbide of net distribution continuously good, alloying element can reduce the eutectic carbide that easily is net distribution in the increase deposited metal, increase carbide and separate out, break carbide network and distribute.
Compare with prior art, the wearability of surfacing welding provided by the invention improves greatly, tests factually, and this welding rod reaches 2000 meters the service life on the S of concrete pump pipe valve
3About; Owing to replace expensive cobalt with cheap chromium, reduce alloys such as expensive niobium, molybdenum, as far as possible so reduce the welding rod cost to greatest extent; Not preheating before this welding rod weldering, postwelding need not tempering.
Surfacing welding provided by the invention can prepare with conventional method.
The following stated embodiment describes the present invention in detail.
Embodiment 1
Core wire is a low carbon steel welding core, and the component of coating and percentage by weight are: marble 11, fluorite 7.6, titanium dioxide 2, quartz 2, high carbon ferro-chrome 34, molybdenum-iron 6.0, vanadium iron 4.5, ferrotianium 4.5, mid-carbon fe-mn 6.4,45
#Ferrosilicon 6.0, tungsten carbide 2, graphite 14.Through test, the content of the chemical composition of the deposited metal of gained (%) is: carbon 2.8, chromium 20.5, molybdenum 4.6, vanadium 3.8, tungsten 1.2, other alloys 3.6, iron 63.5; Deposited metal (under as-welded) hardness HRC52～54 are organized as martensite and add carbide, and reach 19000 meters service life that is used for built-up welding HBT-40 concrete pump S pipe valve
3
Embodiment 2
Core wire is a low carbon steel welding core, and the component of coating and percentage by weight are: marble 5.4, fluorite 4, titanium dioxide 1, quartz 1, high carbon ferro-chrome 40, molybdenum-iron 10, vanadium iron 6.4, ferro-niobium 2.6, ferrotianium 4.5, mid-carbon fe-mn 3.5,45
#Ferrosilicon 3.0, tungsten carbide 2.6, graphite 16.Through test, the content (%) of the deposited metal chemical composition of gained is: carbon 3.4, chromium 24.8, molybdenum 6.4, vanadium 4.0, niobium 0.8, tungsten 1.3, other alloys 4.0, iron 55.3, be organized as martensite and add eutectic and proeutectoid carbide, as-welded hardness HRC54～60 down, reach 20000 meters service life that is used for built-up welding HBT-60 concrete pump S pipe valve
3
Embodiment 3
Core wire is a low carbon steel welding core, and compositions of surfacing metal and percentage by weight are: marble 3.3, fluorite 3.0, titanium dioxide 0.5, quartz 0.5, high carbon ferro-chrome 44, molybdenum-iron 10.4, vanadium iron 6.8, ferro-niobium 2.8, ferrotianium 4.5, mid-carbon fe-mn 2.0,45
#Ferrosilicon 1.8, graphite 18, tungsten carbide 2.4.Through test, the content (%) of the deposited metal chemical composition of gained is: carbon 4.2, chromium 26.8, molybdenum 6.2, vanadium 4.4, niobium 1.2, tungsten 1.2, other alloys 4.2, iron 51.8, be organized as martensite and add carbide, as-welded hardness HRC60～66 down, reach 21000 meters service life that is used for built-up welding HBT-80 concrete pump S pipe valve
3
Claims (1)
1, a kind of hardfacing electrode that is used for concrete pump, comprise core wire and coating, it is characterized in that: core wire is a low carbon steel welding core, and the component of coating and percentage by weight are: marble 3～11, fluorite 2～8, quartz 0.5～2.0, titanium dioxide 0.5～2.0, high carbon ferro-chrome 30～50, molybdenum-iron 9～15, vanadium iron 4～9, ferro-niobium 2～5, ferrotianium 4～9, mid-carbon fe-mn 2～8,45
#Ferrosilicon 1～8, carbon ratio tungsten 2.0～4.0, graphite 10～20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96119492A CN1053853C (en) | 1996-10-18 | 1996-10-18 | Abrasion-resistant surfacing welding electrode for concrete transfer pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96119492A CN1053853C (en) | 1996-10-18 | 1996-10-18 | Abrasion-resistant surfacing welding electrode for concrete transfer pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1180602A true CN1180602A (en) | 1998-05-06 |
| CN1053853C CN1053853C (en) | 2000-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96119492A Expired - Fee Related CN1053853C (en) | 1996-10-18 | 1996-10-18 | Abrasion-resistant surfacing welding electrode for concrete transfer pump |
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| CN (1) | CN1053853C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381245C (en) * | 2006-03-03 | 2008-04-16 | 北京工业大学 | Self-protecting dot and bead welding wire with metal core |
| CN101301708B (en) * | 2008-06-27 | 2010-04-07 | 陈冬 | Improved welding material with tolerance of liquid zinc and aluminiferous zinc-base alloy |
| CN101934443A (en) * | 2010-09-17 | 2011-01-05 | 江西恒大高新技术股份有限公司 | Self-protective flux-cored soldering wire for surfacing of abrasion-resistant plate |
| CN101817125B (en) * | 2009-02-27 | 2011-12-07 | 北京赛亿表面工程技术有限公司 | Method for preparing amorphous abrasion-resistant surfacing coat |
| CN103866892A (en) * | 2014-03-26 | 2014-06-18 | 山东富达装饰工程有限公司 | Marble light-permeable piece convenient to disassemble or assemble |
| CN108296666A (en) * | 2018-01-24 | 2018-07-20 | 江苏孚尔姆焊业股份有限公司 | Abrasion-proof overlaying welding flux-cored wire |
| CN110253177A (en) * | 2019-05-30 | 2019-09-20 | 株洲湘江电焊条有限公司 | Flux-cored wire and preparation method thereof |
| CN110773900A (en) * | 2019-11-20 | 2020-02-11 | 株洲湘江电焊条有限公司 | Surfacing welding electrode and preparation method thereof |
| CN114367763A (en) * | 2022-01-18 | 2022-04-19 | 南京工程学院 | Wear-resistant surfacing electrode for improving surface performance of Q235 steel and cladding method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1003430B (en) * | 1986-01-18 | 1989-03-01 | 湘潭大学 | High-hardness wear-resistant will not thermal reactor welding rod |
| CN88105652A (en) * | 1988-01-05 | 1988-07-06 | 湘潭大学 | Superhardness wornoutless nopreheating build-up welding rod |
-
1996
- 1996-10-18 CN CN96119492A patent/CN1053853C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381245C (en) * | 2006-03-03 | 2008-04-16 | 北京工业大学 | Self-protecting dot and bead welding wire with metal core |
| CN101301708B (en) * | 2008-06-27 | 2010-04-07 | 陈冬 | Improved welding material with tolerance of liquid zinc and aluminiferous zinc-base alloy |
| CN101817125B (en) * | 2009-02-27 | 2011-12-07 | 北京赛亿表面工程技术有限公司 | Method for preparing amorphous abrasion-resistant surfacing coat |
| CN101934443A (en) * | 2010-09-17 | 2011-01-05 | 江西恒大高新技术股份有限公司 | Self-protective flux-cored soldering wire for surfacing of abrasion-resistant plate |
| CN101934443B (en) * | 2010-09-17 | 2016-07-06 | 江西恒大高新技术股份有限公司 | A kind of self-protective flux-cored soldering wire for surfacing of abrasion-resistant plate |
| CN103866892A (en) * | 2014-03-26 | 2014-06-18 | 山东富达装饰工程有限公司 | Marble light-permeable piece convenient to disassemble or assemble |
| CN103866892B (en) * | 2014-03-26 | 2016-01-20 | 山东富达装饰工程有限公司 | A kind of easy-to-mount marble light transmission piece |
| CN108296666A (en) * | 2018-01-24 | 2018-07-20 | 江苏孚尔姆焊业股份有限公司 | Abrasion-proof overlaying welding flux-cored wire |
| CN110253177A (en) * | 2019-05-30 | 2019-09-20 | 株洲湘江电焊条有限公司 | Flux-cored wire and preparation method thereof |
| CN110773900A (en) * | 2019-11-20 | 2020-02-11 | 株洲湘江电焊条有限公司 | Surfacing welding electrode and preparation method thereof |
| CN114367763A (en) * | 2022-01-18 | 2022-04-19 | 南京工程学院 | Wear-resistant surfacing electrode for improving surface performance of Q235 steel and cladding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1053853C (en) | 2000-06-28 |
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