CN105458456A - Alloy adding powder for producing wear-resisting composite liner plate - Google Patents
Alloy adding powder for producing wear-resisting composite liner plate Download PDFInfo
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- CN105458456A CN105458456A CN201511021435.5A CN201511021435A CN105458456A CN 105458456 A CN105458456 A CN 105458456A CN 201511021435 A CN201511021435 A CN 201511021435A CN 105458456 A CN105458456 A CN 105458456A
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- crack
- alloy
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- wear
- adding powder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/042—Built-up welding on planar surfaces
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Plasma & Fusion (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses alloy adding powder for producing a wear-resisting composite liner plate, and belongs to the technical field of surface engineering. The alloy adding powder is prepared from 8.0%-11.0% of C, 50%-70% of Cr, 1.0%-4.0% of B, 0.5%-2.5% of Al and the balance Fe. By means of the alloy adding powder, a hard surface layer with the thickness of 4 mm to 5 mm is formed on a steel plate in a bead welding manner, and therefore excellent wear resisting performance, high hardness and reasonable place face crack distribution can be achieved; and no penetrating crack is formed on the plate face, the length of the crack is within 200 mm, and the width of a crack opening is within 0.5 mm. The technical problem incapable of being solved in a previous traditional welding method is solved, and according to the solving key technology, alloy powder with a certain proportion is added to a weld pool while flux-cored wire welding, the alloy element range meeting the requirement is obtained, and therefore the wear-resisting liner plate with excellent performance is obtained.
Description
Technical field
The invention belongs to field of surface engineering technique, in particular, provide the wear-resisting composite liner alloy of a kind of production and add powder, function admirable.
Background technology
The range of application of nearest domestic abrasion-proof backing block is extensively more next, the output also cumulative year after year of domestic abrasion-proof backing block.The domestic flux-cored wire open arc bead-welding technology that generally adopts manufactures abrasion-proof backing block at present, (steel plate thickness is 4mm abrasion-proof backing block can be divided into different specifications such as 4+4 according to the thickness of steel plate and the thickness of hardfacing weld overlays, hardfacing weld overlays is 4mm), (steel plate thickness is 6mm to 6+4, hardfacing weld overlays is 4mm), 12+6 (steel plate thickness is 4mm, and hardfacing weld overlays is 4mm) etc.The chemical composition of the hardstanding of most widely used abrasion-proof backing block is high carbon and chromium type, the abrasion-proof backing block of the type has cheap, the feature such as production cost is low and anti-wear performance is good, the type liner plate in mine, the sector application such as metallurgy, electric power, chemical industry is very extensive.For improving the wearability of abrasion-proof backing block, following measures can be adopted: 1. increase C, Cr content to increase chromium carbide content in overlay cladding; 2. the Boron contents of overlay cladding is increased to improve the hardness of overlay cladding.The chemical composition ranges of the domestic abrasion-proof overlaying welding flux-cored wire supplied on the market is at present: C4-7%, Cr20-32%, B0-1.2%, all the other compositions are Si, Mn, Fe etc., above welding wire built-up welding thickness on steel plate is adopted to be the hardstanding of 4-5mm, the chemical composition ranges of overlay cladding is: C3.0-4.5%, Cr13-22%, all the other compositions of B0-0.2% are Si, Mn, Fe etc., the service life of the abrasion-proof backing block of above composition is lower, the plate face crack length of the abrasion-proof backing block adopting above welding wire to manufacture is at more than 200mm, crackle is long easily causes abrasion-proof backing block, when excurvation, fracture accident occurs.Adopt single flux-cored wire welding abrasion-proof backing block, the performance of abrasion-proof backing block is difficult to meet high abrasion requirement, easily ruptures during abrasion-proof backing block excurvation.
Summary of the invention
The wear-resisting composite liner alloy of a kind of production is the object of the present invention is to provide to add powder, to improve the anti-wear performance of abrasion-proof backing block, by abrasion-proof backing block face crack cut to lengthen within 200mm.The basic ideas of technical solution problem of the present invention: while adopting flux-cored wire built-up welding, add the alloyed powder of certain proportioning, to improve the alloying element content of overlay cladding, improve the hardness of overlay cladding, change weld overlay cracking distribution, reduce crack length.Adopt method of the present invention, on steel plate, built-up welding thickness is the wearing layer of 4mm, and the C content of overlay cladding can reach more than 5%, can more than 30% containing Cr amount, in surfacing layer, the content of chromium carbide is more than 40%, and the relative wear performance of overlay cladding can improve more than 3 times compared with conventional method built-up welding.In addition, owing to improving the institutional framework of overlay cladding, the crack distribution of overlay cladding is more reasonable, and the abrasion-proof backing block face crack of built-up welding is tiny, and face crack A/F is at below 0.5mm, and crack length is at below 200mm.The abrasion-proof backing block adopting the present invention to produce can meet the manufacture of various wear-resisting spare part, and the wearing piece anti-wear performance of manufacture is excellent.
The chemical composition ranges that alloy of the present invention adds powder is: C8.0%-11.0%, Cr50%-70%, B1.0%-4.0%, Al0.5-2.5%, all the other are Fe.
Adopt interpolation powder of the present invention, on steel plate, built-up welding thickness can obtain at the hardstanding that 4-5mm is thick that anti-wear performance is excellent, hardness is high, plate face crack distribution is reasonable, there is not through-wall crack in plate face, crack length is within 200mm, and crackle A/F is within 0.5mm.The insurmountable technical barrier of traditional welding method before solving.The key problem in technology that the present invention solves is flux-cored wire welds while, adds the alloyed powder with certain function, obtain the abrasion-proof backing block of function admirable to welding pool.
Detailed description of the invention
Implement 1: adopt following alloyed powder to carry out proportioning mixing: high-carbon chromium iron 93%, low-carbon ferrochromium 3%, graphite 1.5%, boron carbide 1.5%, al-mg powder 1%.The alloyed powder chemical composition obtained is as follows: C9.7%%, Cr63%, B1.2%, Al0.6%, all the other are Fe, adopt the welding of abrasion-proof backing block bead welding wire, heap is welded into the wear-resisting composite liner of 6+4, and plate face stiff dough hardness is HRC61, hardstanding wearability is 22 times of Q235, plate facial cleft line maximum length is 150mm, and crackle maximum open width is less than 0.3mm, and the drum substrate that abrasion-proof backing block outside (hardstanding outwardly) bends to diameter 400mm does not rupture.
Implement 2: adopt following alloyed powder to carry out proportioning mixing: high-carbon chromium iron 84%, low-carbon ferrochromium powder 5%, graphite 3%, boron carbide 4%, al-mg powder 4%.Alloyed powder composition is as follows: C10.8%, Cr56%, B3.2%, Al2.2%, and all the other are Fe.Adopt abrasion-proof backing block bead welding wire to pile on 10mm steel plate and be welded into the wear-resisting composite liner of 6+4, plate face hardstanding hardness is HRC64, hardstanding wearability is 25 times of Q235, plate facial cleft line maximum length is 170mm, crackle maximum open width is less than 0.4mm, and the drum substrate that abrasion-proof backing block outside (hardstanding outwardly) bends to diameter 500mm does not rupture.
Implement 3: adopt following alloyed powder to carry out proportioning mixing: high-carbon chromium iron 50%, low-carbon ferrochromium powder 47%, graphite 1%, boron carbide 1%.Alloyed powder composition is as follows: C4.1%, Cr59%, B0.8%, Al0.1%, and all the other are Fe.Adopt abrasion-proof backing block bead welding wire to pile on 10mm steel plate and be welded into the wear-resisting composite liner of 6+4, plate face hardstanding hardness is HRC59, hardstanding wearability is 19 times of Q235, plate facial cleft line maximum length is 450mm, crackle maximum open width is greater than 0.5mm, and the drum substrate that abrasion-proof backing block outside (hardstanding outwardly) bends to diameter 700mm ruptures.
Claims (1)
1. produce wear-resisting composite liner alloy and add a powder, it is characterized in that, the chemical component weight % that this alloy adds powder is: C8.0%-11.0%, Cr50%-70%, B1.0%-4.0%, Al0.5-2.5%, and all the other are Fe;
This alloy adds that at the hardstanding that 4-5mm is thick, powder built-up welding thickness on steel plate can obtain that anti-wear performance is excellent, hardness is high, plate face crack distribution is reasonable, and plate face does not exist through-wall crack, and crack length is within 200mm, and crackle A/F is within 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021435.5A CN105458456A (en) | 2015-12-30 | 2015-12-30 | Alloy adding powder for producing wear-resisting composite liner plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021435.5A CN105458456A (en) | 2015-12-30 | 2015-12-30 | Alloy adding powder for producing wear-resisting composite liner plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105458456A true CN105458456A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511021435.5A Pending CN105458456A (en) | 2015-12-30 | 2015-12-30 | Alloy adding powder for producing wear-resisting composite liner plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549034A (en) * | 2019-10-14 | 2019-12-10 | 湘潭大学 | Composite powder of open arc surfacing austenite high-chromium alloy and application method thereof |
| CN111702294A (en) * | 2020-07-17 | 2020-09-25 | 江苏硕展精密机械有限公司 | High-chromium alloy composite wear-resistant steel plate and production process thereof |
Citations (5)
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| JPH02121798A (en) * | 1988-10-31 | 1990-05-09 | Tokushu Denkyoku Kk | Build-up roll for coiler |
| CN1290600A (en) * | 2000-11-04 | 2001-04-11 | 黄超 | Wear resistant composite alloy parts and its producing method |
| CN101870027A (en) * | 2009-04-22 | 2010-10-27 | 中冶焊接科技有限公司 | Method for manufacturing high-chromium alloy overlaying composite abrasion resistant plate |
| CN102152020A (en) * | 2011-01-31 | 2011-08-17 | 山东博润工业技术有限公司 | Coating powder for submerged arc surfacing of low-carbon steel and application method thereof |
| CN104646860A (en) * | 2015-02-12 | 2015-05-27 | 西安理工大学 | Titanium carbide enhanced type residue-free wear-resisting surfacing flux-cored wire and preparation method thereof |
-
2015
- 2015-12-30 CN CN201511021435.5A patent/CN105458456A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02121798A (en) * | 1988-10-31 | 1990-05-09 | Tokushu Denkyoku Kk | Build-up roll for coiler |
| CN1290600A (en) * | 2000-11-04 | 2001-04-11 | 黄超 | Wear resistant composite alloy parts and its producing method |
| CN101870027A (en) * | 2009-04-22 | 2010-10-27 | 中冶焊接科技有限公司 | Method for manufacturing high-chromium alloy overlaying composite abrasion resistant plate |
| CN102152020A (en) * | 2011-01-31 | 2011-08-17 | 山东博润工业技术有限公司 | Coating powder for submerged arc surfacing of low-carbon steel and application method thereof |
| CN104646860A (en) * | 2015-02-12 | 2015-05-27 | 西安理工大学 | Titanium carbide enhanced type residue-free wear-resisting surfacing flux-cored wire and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549034A (en) * | 2019-10-14 | 2019-12-10 | 湘潭大学 | Composite powder of open arc surfacing austenite high-chromium alloy and application method thereof |
| CN110549034B (en) * | 2019-10-14 | 2021-01-12 | 湘潭大学 | Composite powder of open arc surfacing austenite high-chromium alloy and application method thereof |
| CN111702294A (en) * | 2020-07-17 | 2020-09-25 | 江苏硕展精密机械有限公司 | High-chromium alloy composite wear-resistant steel plate and production process thereof |
| CN111702294B (en) * | 2020-07-17 | 2021-12-28 | 江苏硕展精密机械有限公司 | High-chromium alloy composite wear-resistant steel plate and production process thereof |
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