CN102560475A - Preparation method and depositing method of alloy powder material - Google Patents
Preparation method and depositing method of alloy powder material Download PDFInfo
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Abstract
A preparation method and a depositing method of an alloy powder material belong to preparation methods and depositing methods of abrasion-resisting materials. The preparation method includes 1 selecting ferroalloy, rutile powder and dolomite powder as raw materials; 2 crushing the ferroalloy till the ferroalloy becomes particles with diameter ranging from 1 to 10 mm; 3 ball-milling the particles through a ball mill to obtain ferroalloy powder below 200 meshes; 4 dosing by weight percentage and mixing powder raw materials evenly; 5 adding 3-5% water glass into the evenly mixed powder, mixing evenly, static-pressing for 3-5 seconds on a hydropress, and taking out; 6 drying at the heating temperature of 110 DEG C, and heating time ranges from 4 to 6 hours. The depositing method includes that alloy powder blocks are placed on the surfaces of vane plates of a rotary drum or an arc coal-retaining plate of a coal cutting machine and manually arc welded to the surfaces by adopting an inversion direct current arc welding machine. The alloy powder blocks are melted on the surfaces of the vane plates of the rotary drum or the arc coal-retaining plate of the coal cutting machine to form high abrasion-resisting alloy blocks. The preparation method and the depositing method of the alloy powder material have the advantages that hardness of the alloy system reaches HRC 64-66, abrasion resistance is 12.8 times higher than 16 Mn, and service life of the rotary drum of the coal cutting machine is prolonged.
Description
Technical field
The present invention relates to a kind of preparation and cladding method thereof of preparation and cladding method thereof, particularly a kind of alloy powder material of high-abrasive material.
Background technology
At present, coalcutter is that running environment is comparatively abominable, and is stressed bigger with the broken coal of rotary work mechanism, and cylinder vane plate and the wear-resisting inefficacy of arc spillplate appear in regular meeting, will cause coalcutter to shut down maintenance, influence coal production.Along with the modernization of coal production technology, digging equipment, coal mining intensity constantly increases, and the wear resistance of cylinder vane plate and arc spillplate is had higher requirement.
For solving the wearing and tearing of coal mine machinery, adopt some wear resistant alloy powders, the alloy after its molten applying roughly is divided into: chromium-manganese-tungstenalloy system, chromium-manganese-molybdenum alloy system, chromium-manganese-boron alloy system, chromium-tungsten-boron alloy system, chromium-manganese-titanium alloy system.Described alloy system costs an arm and a leg, and cost is high; And being operated in the sharp wear that coal mining machine roller vane plate or arc spillplate in the coal seam receive coal, work-ing life is short, needs more attrition resistant alloy system to substitute.
Summary of the invention
The objective of the invention is to provide a kind of preparation and cladding method thereof of alloy powder material, solve alloy system of the prior art and cost an arm and a leg, cost is high; And be operated in the sharp wear that coal mining machine roller vane plate or arc spillplate in the coal seam receive coal, the problem that work-ing life is short.
The objective of the invention is to realize like this: the preparation of powdered alloy piece and cladding method, the preparation of powdered alloy piece comprises the steps:
1. material chosen: selecting iron alloy and the golden red stone flour of vanadium iron, ferrotianium, ferrotungsten, molybdenum-iron, ferrosilicon and middle carbon ferro-boron and ground dolomite is starting material;
2. the fragmentation of iron alloy block: adopt jaw crusher, iron alloy is crushed to the particle that diameter is 1～10mm;
3. the ball milling of iron alloy block: will be crushed to diameter is the iron alloy particle of 1～10mm, through the ball mill ball milling, with 200 purpose sieve, obtains the ferroalloy powder below 200 orders;
4. the preparation of powder: prepare burden: vanadium iron 48%, ferrotianium 18%, ferrotungsten 8%, molybdenum-iron 5%, ferrosilicon 4%, middle carbon ferro-boron 3%, golden red stone flour 7% and ground dolomite 7% with weight percent; Golden red stone flour and ground dolomite are 200 orders, and above-mentioned powder raw materials mix is even;
5. briquetting: in the above-mentioned powder that mixes, add 3%-5% water glass, mix, water glass is commonly called as bubble flower alkali Na2On SiO2, and modulus requires 3.5-3.7, soluble solids >=99; Put into set metal die then, after 3～5 seconds, take out at static pressure on the hydropress;
6. oven dry: above-mentioned powdered alloy piece is put into the electric drying oven with forced convection heating, drying, and Heating temperature is 110 ℃, and be 4-6 hour heat-up time;
7, the cladding method of powdered alloy piece is following: above-mentioned powdered alloy piece is placed in coal mining machine roller vane plate or arc spillplate surface; Adopt the contravariant DC arc welder; The alloy current parameters is 210 amperes, uses diameter to do electrode as the 8mm carbon-point, adopts manual metal-arc welding to connect; Striking on the mother metal on the limit of powdered alloy piece; Make cylinder vane plate or arc spillplate surface melting earlier, powdered alloy piece fusing is then progressively pushed ahead; Be melted in coal mining machine roller vane plate or arc spillplate surface up to the powdered alloy piece, form the high-wear-resistant alloy piece.
Beneficial effect: owing to adopted such scheme, after the powdered alloy piece of the present invention's preparation is deposited on coal mining machine roller vane plate or the arc spillplate, the vanadium-titanium of formation-tungsten vanadium-titanium-molybdenum, vanadium-titanium-boron alloy system; Owing to have a large amount of alloys in the alloy system; The molten deposited back cooling under air of powdered alloy piece can obtain martensitic matrix, owing to added a large amount of vanadium and titanium, and vanadium and titanium are the strong carbide forming elements; Be prone on the alloy martensite matrix, form a large amount of vanadium carbide and titanium carbide; Vanadium carbide and titanium carbide have high firmness and high wear-resisting, the formation of small amount of carbonized boron is arranged in vanadium-titanium-boron alloy system, and the hardness of norbide are only second to diamond; In vanadium-titanium-tungsten and vanadium-titanium-molybdenum alloy system, have small amount of carbonized tungsten and molybdenum carbide to form, make the raising of alloy system hardness and wear resistance.Because alloying element vanadium, titanium, tungsten, molybdenum are again the elements of crystal grain thinning, molten intensity, toughness of applying back formation alloy is improved.Be used as reductor, degasifier owing to added the golden red stone flour again, and can reduce molten segregation of applying the back alloy, improve to melt and apply the back alloy mass.Ferrosilicon can diffusive deoxidation as reductor.The molten silicon that has some amount in the alloy of back that applies, can significantly improve molten apply the back alloy intensity, consistency and elasticity, rhombspar belongs to the carbonate minerals of trigonal system, chemical ingredients is CaMgCO32.As slag former, to reduce harmful element sulphur, the content of phosphorus molten applying in the process. the form of contained assorted welding slag is got rid of. improve molten intensity and toughness of applying the back alloy.Adopt carbon-point striking point not on the powdered alloy piece; But on the limit of powdered alloy piece (on the mother metal) striking technology; Make cylinder vane plate or arc spillplate surface melting earlier; Powdered alloy piece fusing then reduces the scaling loss to the powdered alloy interalloy, helps the molten back of applying and forms high firmness and intensity high alloy.Solved alloy system of the prior art and cost an arm and a leg, cost is high; And being operated in the sharp wear that coal mining machine roller vane plate or arc spillplate in the coal seam receive coal, the problem that work-ing life is short reaches the object of the invention.
Advantage: broken through alloy system in the past, adopting cheap iron-carbon is raw material, has made the attrition resistant alloy system vanadium-titanium of high vanadium-tungstenalloy system, vanadium-titanium-molybdenum alloy system; Vanadium-titanium-boron alloy system; The hardness of this alloy system reaches HRC64-66, and wear resistance is 12.8 times of 16Mn, coal machine cylinder vane plate or arc spillplate surface; Improved the wear-resistant protection of cylinder vane plate or arc spillplate greatly, thereby improved the work-ing life of coal mining machine roller.
Embodiment
The preparation and the cladding method thereof of coal mining machine roller vane plate of the present invention or arc spillplate wear resistant alloy powders material: adopting cheap iron alloy is starting material; Through fragmentation, ball milling, screening, proportioning, briquetting, oven dry, molten applying, obtain high vanadium wear resistant alloy.
Embodiment 1:
1. material chosen.Select cheap iron alloy as starting material, the iron alloy of selection vanadium iron, ferrotianium, ferrotungsten, molybdenum-iron, ferrosilicon and middle carbon ferro-boron and golden red stone flour and ground dolomite are starting material; Rather than the pure metal powder of selecting to cost an arm and a leg is raw material, and wherein the market value of vanadium iron is 110 yuan/kilogram, and 200 purpose pure vanadium powders end market value is 3600 yuan/kilogram.The market value of ferrotianium is 25 yuan/kilogram, and 200 purpose pure vanadium powders end market value is 3800 yuan/kilogram; The powdered alloy that iron alloy is made as starting material is cheap;
2. the fragmentation of iron alloy block.Adopt jaw crusher, iron alloy is crushed to the particle that diameter is 1～10mm.The model of jaw crusher is RK/PEF100 * 125 types.
3. the ball milling of iron alloy block.With being crushed to the iron alloy particle that diameter is 1～10mm,,, obtain the ferroalloy powder below 200 orders with 200 purpose sieve through the ball mill ball milling.The model of ball mill is RK/ZQM Ф 0160 * 60 type.
4. the preparation of powder: weight percent: vanadium iron 48%, ferrotianium 18%, ferrotungsten 8%, molybdenum-iron 5%, ferrosilicon 4%, middle carbon ferro-boron 3%, golden red stone flour 7% and ground dolomite 7%; Golden red stone flour and ground dolomite are 200 orders, and above-mentioned powder raw materials mix is even; (1) trade mark of vanadium iron is that the trade mark of FeV50-B, (2) ferrotianium is that the trade mark of FeTi30-A, (3) ferrotungsten, (4) molybdenum-iron is that the trade mark of MO60-70, (5) ferrosilicon is that the trade mark of carbon ferro-boron in FeSi75-A, (6) is FeB16C1.0;
5. briquetting: in the above-mentioned powder that mixes, add 3%-5% water glass, mix, water glass is commonly called as bubble flower alkali Na2On SiO2, and modulus requires 3.5-3.7, soluble solids >=99; Put into set metal die then, after 3～5 seconds, take out at static pressure on the hydropress; According to metal cavity dimension length * wide * height, can suppress the powdered alloy piece of different size.The powdered alloy block of material of selecting for use 80mm * 40mm * 4mm, 100mm * 50mm * 6mm, the different powdered alloys big or small and thickness of 120mm * 60mm * 8mm to process.
6. oven dry: above-mentioned powdered alloy piece is put into 101A--1 type electric drying oven with forced convection heating, drying, and Heating temperature is 110 ℃, and be 4-6 hour heat-up time.
7, cladding method: above-mentioned powdered alloy piece is placed in coal mining machine roller vane plate or arc spillplate surface, adopts ZS7-400 contravariant DC arc welder, the alloy current parameters is 210 amperes, uses diameter to do electrode as the 8mm carbon-point, adopts manual metal-arc welding to connect.In order to reduce scaling loss to the powdered alloy interalloy; Carbon-point striking point is not on rectangle powdered alloy piece, but (on the mother metal) striking on the limit of rectangle powdered alloy piece makes cylinder vane plate or arc spillplate surface melting earlier; Rectangle powdered alloy piece fusing then; Progressively push ahead, be melted in coal mining machine roller vane plate or arc spillplate surface, form the high vanadium wear-resisting alloy block of vanadium-titanium-tungsten up to rectangle powdered alloy piece; Through the measurement of Rockwell hardometer, the hardness of above-mentioned wear resistant alloy reaches HRC65.Show through the wear-resisting simultaneous test of MM-200 abrasion tester: wear resistance is 12.8 times of 16Mn (material of coal mining machine roller vane plate or arc spillplate adopts the 16Mn steel plate to do material mostly).Alloy block is molten deposited coal mining machine roller vane plate in compartment of terrain or arc spillplate surface by this method, the work-ing life of improving coal mining machine roller vane plate or arc spillplate.
Embodiment 2:
1. material chosen.Select cheap iron alloy as starting material, rather than selection costs an arm and a leg, and (for example the market value of vanadium iron is 110 yuan/kilogram to pure metal powder, and 200 purpose pure vanadium powders end market value is 3600 yuan/kilogram.The market value of ferrotianium is 25 yuan/kilogram, and 200 purpose pure vanadium powders end market value is 3800 yuan/kilogram).Iron alloy as the starting material manufacturing to close the powdered alloy price honest and clean.
2. the fragmentation of iron alloy block.Adopt jaw crusher (model is RK/PEF100 * 125 types), iron alloy is crushed to the particle that diameter is 1～10mm.
3. the ball milling of iron alloy block.With being crushed to the iron alloy particle that diameter is 1～10mm,,, obtain the ferroalloy powder below 200 orders with 200 purpose sieve through ball mill (RK/ZQM Ф 160 * 60 types) ball milling.
4. the preparation of powder: weight percent: carbon ferro-boron (trade mark FeB16C1.0), (7) 7% golden red stone flours (200 order powder), (8) 7% ground dolomites (200 order powder) in (1) 48% vanadium iron (trade mark FeV50-B), (2) 18% ferrotianiums (trade mark FeTi30-A), (3) 8% molybdenum-irons (trade mark MO60-70), (4) 5% ferrotungstens (trade mark FeW70), (5) 4% ferrosilicon (trade mark FeSi75-A), (6) 3%.With (1) (2) (3) (4) (5) (6 (7 (8) uniform mixing.
5. briquetting: in above-mentioned mixed uniformly powder, add 3%-5% water glass (be commonly called as bubble flower alkali Na2On SiO2, modulus requires 3.5-3.7, soluble solids >=99) and mix.Put into set metal die, after 3～5 seconds, take out at static pressure on the hydropress.According to metal cavity dimension length * wide * height, can suppress the powdered alloy piece of different size.The material (powdered alloy piece) processed of the powdered alloy of 80mm * 40mm * 4mm, 100mm * 50mm * 6mm, 120mm * 60mm * differences such as 8mm size and thickness for example.
6. oven dry: above-mentioned powdered alloy piece is put into 101A--1 type electric drying oven with forced convection heating, drying, and Heating temperature is 110 ℃, and be 4-6 hour heat-up time.
7. cladding method: above-mentioned powdered alloy piece is placed in coal mining machine roller vane plate or arc spillplate surface, adopts ZS7-400 contravariant DC arc welder, the alloy current parameters is 210 amperes, uses diameter to do electrode as the 8mm carbon-point, and the employing manual metal-arc welding connects.In order to reduce scaling loss to the powdered alloy interalloy; Carbon-point striking point is not on rectangle powdered alloy piece, but (on the mother metal) striking on the limit of rectangle powdered alloy piece makes cylinder vane plate or arc spillplate surface melting earlier; Rectangle powdered alloy piece fusing then; Progressively push ahead, be melted in coal mining machine roller vane plate or arc spillplate surface, form vanadium-titanium-molybdenum wear-resisting alloy block up to rectangle powdered alloy piece; Through the measurement of Rockwell hardometer, the hardness of above-mentioned wear resistant alloy reaches HRC64.Show through the wear-resisting simultaneous test of MM-200 abrasion tester: wear resistance is 12.4 times of 16Mn (material of coal mining machine roller vane plate or arc spillplate adopts the 16Mn steel plate to do material mostly).Alloy block is molten deposited coal mining machine roller vane plate in compartment of terrain or arc spillplate surface by this method, the work-ing life of improving coal mining machine roller vane plate or arc spillplate.
Embodiment 3:
1. material chosen: select cheap iron alloy as starting material, rather than the pure metal powder of selecting to cost an arm and a leg (for example the market value of vanadium iron is 110 yuan/kilogram, and 200 purpose pure vanadium powders end market value is 3600 yuan/kilogram.The market value of ferrotianium is 25 yuan/kilogram, and 200 purpose pure vanadium powders end market value is 3800 yuan/kilogram).Iron alloy as the starting material manufacturing to close the powdered alloy price honest and clean.
2. the fragmentation of iron alloy block: adopt jaw crusher (model is RK/PEF100 * 125 types), iron alloy is crushed to the particle that diameter is 1～10mm.
3. the ball milling of iron alloy block: will be crushed to diameter is the iron alloy particle of 1～10mm, through ball mill (RK/ZQM Ф 160 * 60 types) ball milling, with 200 purpose sieve, obtains the ferroalloy powder below 200 orders.
4. the preparation of powder: weight percent: carbon ferro-boron (trade mark FeB16C1.0), (4) 3% molybdenum-irons (trade mark MO60-70), (5) 3% ferrotungstens (trade mark FeW70), (6) 2% ferrosilicon (trade mark FeSi75-A), (7) 7% golden red stone flours (200 order powder), (8) 7% ground dolomites (200 order powder) in (1) 50% vanadium iron (trade mark FeV50-B), (2) 23% ferrotianiums (trade mark FeTi30-A), (3) 5%.With (1) (2) (3) (4) (5) (6 (7 (8) uniform mixing.
5. briquetting: in above-mentioned mixed uniformly powder, add 3%-5% water glass (be commonly called as bubble flower alkali Na2On SiO2, modulus requires 3.5-3.7, soluble solids >=99) and mix.Put into set metal die, after 3～5 seconds, take out at static pressure on the hydropress.According to metal cavity dimension length * wide * height, can suppress the powdered alloy piece of different size.The material (powdered alloy piece) processed of the powdered alloy of 80mm * 40mm * 4mm, 100mm * 50mm * 6mm, 120mm * 60mm * differences such as 8mm size and thickness for example.
6. oven dry: above-mentioned powdered alloy piece is put into 101A--1 type electric drying oven with forced convection heating, drying, and Heating temperature is 110 ℃, and be 4-6 hour heat-up time.
7. cladding method: above-mentioned powdered alloy piece is placed in coal mining machine roller vane plate or arc spillplate surface, adopts ZS7-400 contravariant DC arc welder, the alloy current parameters is 210 amperes, uses diameter to do electrode as the 8mm carbon-point, and the employing manual metal-arc welding connects.In order to reduce scaling loss to the powdered alloy interalloy; Carbon-point striking point is not on rectangle powdered alloy piece, but (on the mother metal) striking on the limit of rectangle powdered alloy piece makes cylinder vane plate or arc spillplate surface melting earlier; Rectangle powdered alloy piece fusing then; Progressively push ahead, be melted in coal mining machine roller vane plate or arc spillplate surface, form vanadium-titanium-boron wear-resistant alloy piece up to rectangle powdered alloy piece; Through the measurement of Rockwell hardometer, the hardness of above-mentioned wear resistant alloy reaches HRC66.Show through the wear-resisting simultaneous test of MM-200 abrasion tester: wear resistance is 13.2 times of 16Mn (material of coal mining machine roller vane plate or arc spillplate adopts the 16Mn steel plate to do material mostly).Alloy block is molten deposited coal mining machine roller vane plate in compartment of terrain or arc spillplate surface by this method, the work-ing life of improving coal mining machine roller vane plate or arc spillplate.
Claims (1)
1. the preparation of an alloy powder material and cladding method thereof, it is characterized in that: the preparation of powdered alloy piece comprises the steps:
(1). material chosen: the iron alloy of selection vanadium iron, ferrotianium, ferrotungsten, molybdenum-iron, ferrosilicon and middle carbon ferro-boron and golden red stone flour and ground dolomite are starting material;
(2). the fragmentation of iron alloy block: adopt jaw crusher, iron alloy is crushed to the particle that diameter is 1～10mm;
The ball milling of iron alloy block: will be crushed to diameter is the iron alloy particle of 1～10mm, through the ball mill ball milling, with 200 purpose sieve, obtains the ferroalloy powder below 200 orders;
The preparation of powder: prepare burden: vanadium iron 48%, ferrotianium 18%, ferrotungsten 8%, molybdenum-iron 5%, ferrosilicon 4%, middle carbon ferro-boron 3%, golden red stone flour 7% and ground dolomite 7% with weight percent; Golden red stone flour and ground dolomite are 200 orders, and above-mentioned powder raw materials mix is even;
Briquetting: in the above-mentioned powder that mixes, add 3%-5% water glass, mix, water glass is commonly called as bubble flower alkali Na2On SiO2, and modulus requires 3.5-3.7, soluble solids >=99; Put into set metal die then, after 3～5 seconds, take out at static pressure on the hydropress;
Oven dry: above-mentioned powdered alloy piece is put into the electric drying oven with forced convection heating, drying, and Heating temperature is 110 ℃, and be 4-6 hour heat-up time;
(7). the cladding method of powdered alloy piece is: above-mentioned powdered alloy piece is placed in coal mining machine roller vane plate or arc spillplate surface; Adopt the contravariant DC arc welder; The alloy current parameters is 210 amperes, uses diameter to do electrode as the 8mm carbon-point, adopts manual metal-arc welding to connect; Striking on the mother metal on the limit of powdered alloy piece; Make cylinder vane plate or arc spillplate surface melting earlier, powdered alloy piece fusing is then progressively pushed ahead; Be melted in coal mining machine roller vane plate or arc spillplate surface up to the powdered alloy piece, form the high-wear-resistant alloy piece.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104308451A (en) * | 2014-11-14 | 2015-01-28 | 北京中纬研科新材料有限公司 | Speed reducer bearing block repair method |
| CN108582502A (en) * | 2018-05-07 | 2018-09-28 | 江苏锋泰工具有限公司 | Diamond saw blade and preparation method thereof |
| CN108582503A (en) * | 2018-05-07 | 2018-09-28 | 江苏锋泰工具有限公司 | Diamond Cutting cutter head and preparation method thereof |
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| US20080251507A1 (en) * | 2004-02-16 | 2008-10-16 | Kevin Francis Dolman | Hardfacing Ferroalloy Materials |
| RU2007132454A (en) * | 2005-01-28 | 2009-03-10 | Инджекшн Эллойз Лимитед (Gb) | WIRE FOR REFINED MELTED METAL AND METHOD FOR ITS MANUFACTURE |
| CN101879670A (en) * | 2010-06-03 | 2010-11-10 | 辽宁工程技术大学 | High wear resistance surfacing alloy material containing multiphase metal ceramics |
| CN102126093A (en) * | 2011-01-06 | 2011-07-20 | 山东建筑大学 | Iron-based powder alloy and argon arc surfacing technology utilizing same |
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Patent Citations (4)
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| US20080251507A1 (en) * | 2004-02-16 | 2008-10-16 | Kevin Francis Dolman | Hardfacing Ferroalloy Materials |
| RU2007132454A (en) * | 2005-01-28 | 2009-03-10 | Инджекшн Эллойз Лимитед (Gb) | WIRE FOR REFINED MELTED METAL AND METHOD FOR ITS MANUFACTURE |
| CN101879670A (en) * | 2010-06-03 | 2010-11-10 | 辽宁工程技术大学 | High wear resistance surfacing alloy material containing multiphase metal ceramics |
| CN102126093A (en) * | 2011-01-06 | 2011-07-20 | 山东建筑大学 | Iron-based powder alloy and argon arc surfacing technology utilizing same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104308451A (en) * | 2014-11-14 | 2015-01-28 | 北京中纬研科新材料有限公司 | Speed reducer bearing block repair method |
| CN108582502A (en) * | 2018-05-07 | 2018-09-28 | 江苏锋泰工具有限公司 | Diamond saw blade and preparation method thereof |
| CN108582503A (en) * | 2018-05-07 | 2018-09-28 | 江苏锋泰工具有限公司 | Diamond Cutting cutter head and preparation method thereof |
| CN108582503B (en) * | 2018-05-07 | 2020-10-09 | 江苏锋泰工具有限公司 | Diamond cutting tool bit and manufacturing method thereof |
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