CN101722346A - CO2 gas shielded-spraying powder feeding composite overlaying process - Google Patents
CO2 gas shielded-spraying powder feeding composite overlaying process Download PDFInfo
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- CN101722346A CN101722346A CN200810137294A CN200810137294A CN101722346A CN 101722346 A CN101722346 A CN 101722346A CN 200810137294 A CN200810137294 A CN 200810137294A CN 200810137294 A CN200810137294 A CN 200810137294A CN 101722346 A CN101722346 A CN 101722346A
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Abstract
The invention relates to a novel overlaying technology which finishes the processes of melting wire materials and melting and welding powder by utilizing CO2 gas shielded welding equipment and an automatic running mechanism. A composite overlaying layer is obtained by filling various kinds of powder into a molten pool under the condition of controlling the powder feeding speed, the powder granularity and the powder feeding amount by a spraying powder feeding device. By controlling an automatic running device, the welding speed is controlled at 100-500 mm/min, the spraying powder feeding speed is controlled in the adjustable range of 0-1.5kg/h, the spraying powder feeding angle is controlled at 15 degrees-75 degrees, and the spraying powder feeding distance is controlled at 3mm-20mm. The spraying wire materials are wire materials capable for being selected for CO2 gas shielded welding; the granularity range of the powder can be 60 meshes-320 meshes, and the powder can be metal powder, alloy powder, carbide, oxide or nitride ceramics; and the hardness of the overlaying layer reaches HRC30-66. The invention is applied to surface overlaying of industrial and mining materials with abrasion resistance, corrosion resistance and high temperature oxidation resistance.
Description
Affiliated technical field
The present invention relates to a kind of novel technique for overlaying, be used to resistance to wear, anticorrosive, resistance to high temperature oxidation industrial and mineral.Especially at general abrasive wear industrial and mineral, can built-up welding on some mild steel part time job surface, improve its wearability, increase the service life.
Background technology
Use methods such as manual electric arc pile up welding, spraying to improve parts service life in the reparation of many machineries.Manual electric arc pile up welding production efficiency is low, can not reach the automation welding.Oxygen-second flame spray welding exists production efficiency to hang down shortcoming too, simultaneously the powder deposition efficiency low, can not spray the high-melting-point pottery.Therefore, be necessary to seek automatic surfacing, and the production efficiency height, widely applicable, the new method that production cost is low.
Summary of the invention
The invention provides a kind of with CO
2Gas shielded arc welding is thermal source and welding; dose the different-alloy welding wire according to the production demand; and adopt and spray dust feeder; add alloys such as single chromium, tungsten, manganese, boron, nickel; can also add carbide, oxide, nitride ceramics; easily can add multiple alloy and ceramic material, reach automatically or semi-automatic welding, prepare required overlay cladding.This method can be used for repairing the wearing and tearing industrial and mineral, improves wearability, also can be used for resistance to high temperature oxidation and corrosion resistance industrial and mineral, easily can be used to prepare composite.
Technical solution of the present invention:
(1) equipment utilization CO
2Gas shield soldering equipment and automatic walking mechanism are finished wire materials fusing and powder fusing, welding.Dust feeder control powder sending quantity, powder granularity, powder fusing degree are sprayed in self-control, by filling various powders, enter the molten bath, obtain the composite overlaying layer.
Welding current: 140-180A
Weldingvoltage: 22-26V
(2) spraying the powder feeding technological parameter:
Automatic speed of travel modification scope: 100-500mm/min
Spray powder sending quantity: 0-1.5kg/h
Spray the powder feeding angle: 15 °-75 °
Spray powder feeding distance: 3mm-10mm
Powder deposition efficiency: 70%-90%
(3) the welding wire material is CO
2Gas shielded arc welding can be selected a material for use, as H08Mn2Si etc.
(4) test required powder body material: powder design can single metal, and also optional various ferroalloys add wide 60 orders-320 order that can be of particle size range.Can also select carbide, oxide, nitride ceramics for use, form alloy welding deposit layer, alloy-Ceramic Composite overlay cladding after the built-up welding, surfacing hardness reaches HRC30-64.
Beneficial effect of the present invention
The design CO
2Powder feeding hardfacing technology is sprayed in the gas shiled weldering and investigation of materials is with a kind of new method overlay cladding to be added alloy, and to obtain the overlay cladding of high abrasion, high rigidity, corrosion resistance, moulding attractive in appearance, novel injection powder feeding built-up welding is at general CO
2On the basis of Gas Shielded welding,, obtain industrial and mineral institute surfacing layer metal by the allotment alloy powder.This method has powder body material and appoints allotment, and is honest and clean at the bottom of the cost, and the high characteristics of operating efficiency and economic benefit can be used for all kinds of industrial and minerals and repair and prepare composite.This invention can reach efficient, automatic, large-area built-up welding according to being used for different operating mode design overlay cladding alloy systems, not only can be used for built-up welding and repairs workpiece, also can be used for preparing composite.
The specific embodiment
Describe excellent characteristics of the present invention and effect by following detailed embodiment, but be not that the present invention is done any restriction.
Embodiment 1:CO2 gas shielded arc welding (PANA-AUTO KR II 350 CO2/MAG) is selected a material H08Mn2Si for use, the powder high carbon ferro-chrome.Utilize CO2 gas shielded arc welding and injection powder feeding mechanism to weld on mild-steel sheet, the adjusting electric current is 160A, and voltage is 24V; the powder feeding gas flow is 5ml/min, and speed of welding is 200mm/min, sprays 60 ° of powder feeding angles; built-up welding one deck weld seam, the overlay cladding surface obtains Rockwell hardness 52.
Embodiment 2:CO2 gas shielded arc welding (PANA-AUTO KR II 350 CO2/MAG) is selected a material H08Mn2Si for use, carbon duriron 10% among the powder high carbon ferro-chrome 70%-mid-carbon fe-mn 20%-, the compound 30min of ball milling.Utilize CO2 gas shielded arc welding and injection powder feeding mechanism on mild-steel sheet, to weld, regulate electric current 160A, voltage 24V; the powder feeding gas flow is 5ml/min; speed of welding is 200mm/min, sprays 60 ° of built-up welding one decks of powder feeding angle weld seam, and the overlay cladding surface obtains Rockwell hardness 58.
Embodiment 3:CO2 gas shielded arc welding (PANA-AUTO KR II 350 CO2/MAG) is selected a material H08Mn2Si for use, is original washing powder with carbon duriron 10% among the powder high carbon ferro-chrome 70%-mid-carbon fe-mn 20%-, adds molybdenum-iron 4%, vanadium iron 4%, the compound 30min of ball milling.Utilize CO2 gas shielded arc welding and injection powder feeding mechanism on mild-steel sheet, to weld, regulate electric current 160A, voltage 24V; the powder feeding gas flow is 5ml/min; speed of welding is 200mm/min, sprays 60 ° of built-up welding one decks of powder feeding angle weld seam, and the overlay cladding surface obtains Rockwell hardness 62.
Embodiment 4:CO2 gas shielded arc welding (PANA-AUTO KR II 350 CO2/MAG) is selected a material H08Mn2Si for use, is original washing powder with carbon duriron 10% among the powder high carbon ferro-chrome 70%-mid-carbon fe-mn 20%-, adds boron carbide 8%, the compound 30min of ball milling.Utilize CO2 gas shielded arc welding and injection powder feeding mechanism on mild-steel sheet, to weld, regulate electric current 160A, voltage 24V; the powder feeding gas flow is 5ml/min; speed of welding is 200mm/min, sprays 60 ° of built-up welding one decks of powder feeding angle weld seam, and the overlay cladding surface obtains Rockwell hardness 64.
Claims (6)
1. utilize CO
2Gas shield soldering equipment and automatic walking mechanism are sprayed the compound bead-welding technology that carries out of dust feeder with self-control.
2. according to the described CO of claim 1
2The gas shield soldering equipment sprays powder feeding with self-control and is compounded to form built-up welding, it is characterized by: CO
2Gas shielded arc welding welding gun and weldment are at an angle of 90; between the vertical range 12-15mm of weldment surface; spraying powder feeding spray gun and welding gun angle between the two is 15 °-75 °, can be sprayed onto in the molten bath of gas shielded arc welding with the assurance alloy powder, thereby can guarantee powder fusing and homogenising.
3. according to the described CO of claim 1
2Gas shielded-spraying powder feeding composite overlaying is characterized by: guarantee that powder deposits to weld seam, can regulate powder feeding gas body range of flow is 4-6L/min.
4. according to the described CO of claim 1
2Gas shielded-spraying powder feeding composite overlaying is characterized by: moulding and hardness according to weld seam are determined speed of travel modification scope: 100-400mm/min.
5. according to the described CO of claim 1
2Gas shielded-spraying powder feeding composite overlaying is characterized by: powder sending quantity can be adjusted in the 0-1.0kg/h scope according to the requirement of welding seam alloying degree.
6. design can singly select various alloys, composite alloy, cermet compound according to the described injection powder of claim 1, adds wide 60 orders-320 order that can be of particle size range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810137294A CN101722346A (en) | 2008-10-13 | 2008-10-13 | CO2 gas shielded-spraying powder feeding composite overlaying process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810137294A CN101722346A (en) | 2008-10-13 | 2008-10-13 | CO2 gas shielded-spraying powder feeding composite overlaying process |
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| Publication Number | Publication Date |
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| CN101722346A true CN101722346A (en) | 2010-06-09 |
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| CN200810137294A Pending CN101722346A (en) | 2008-10-13 | 2008-10-13 | CO2 gas shielded-spraying powder feeding composite overlaying process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343471A (en) * | 2010-07-29 | 2012-02-08 | 上海图博可特石油管道涂层有限公司 | Overlaying process of drilling tool for petroleum extraction |
| CN103273170A (en) * | 2013-06-18 | 2013-09-04 | 佳木斯大学 | Build-up welding method for ceramic-reinforced iron-based wear-resistant composite coatings |
| CN104096958A (en) * | 2014-06-27 | 2014-10-15 | 武汉理工大学 | Ceramic reinforced metal matrix composite welding layer plasma overlaying preparation method |
| CN106378519A (en) * | 2016-11-16 | 2017-02-08 | 武汉理工大学 | Alloy powder material for high heat-resisting strength iron-based cladding layer and cladding layer preparation method |
| CN106513929A (en) * | 2016-09-26 | 2017-03-22 | 湖北汽车工业学院 | Aluminum alloy surface B4C particle reinforced Al base composite cladding layer and preparation method |
| CN111112794A (en) * | 2020-01-14 | 2020-05-08 | 三峡大学 | Third-phase reinforced metal matrix composite material arc additive manufacturing method and equipment |
| CN114515887A (en) * | 2022-03-11 | 2022-05-20 | 郑州机械研究所有限公司 | Preparation method of low-dilution-rate surfacing wear-resistant plate |
-
2008
- 2008-10-13 CN CN200810137294A patent/CN101722346A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343471A (en) * | 2010-07-29 | 2012-02-08 | 上海图博可特石油管道涂层有限公司 | Overlaying process of drilling tool for petroleum extraction |
| CN103273170A (en) * | 2013-06-18 | 2013-09-04 | 佳木斯大学 | Build-up welding method for ceramic-reinforced iron-based wear-resistant composite coatings |
| CN104096958A (en) * | 2014-06-27 | 2014-10-15 | 武汉理工大学 | Ceramic reinforced metal matrix composite welding layer plasma overlaying preparation method |
| CN104096958B (en) * | 2014-06-27 | 2015-12-02 | 武汉理工大学 | A kind of plasma surfacing preparation method of ceramic reinforced metal base compound layer |
| CN106513929A (en) * | 2016-09-26 | 2017-03-22 | 湖北汽车工业学院 | Aluminum alloy surface B4C particle reinforced Al base composite cladding layer and preparation method |
| CN106513929B (en) * | 2016-09-26 | 2019-06-25 | 湖北汽车工业学院 | Aluminum alloy surface B4C particle REINFORCED Al base composite cladding layer and preparation method |
| CN106378519A (en) * | 2016-11-16 | 2017-02-08 | 武汉理工大学 | Alloy powder material for high heat-resisting strength iron-based cladding layer and cladding layer preparation method |
| CN106378519B (en) * | 2016-11-16 | 2019-01-01 | 武汉理工大学 | A kind of iron-based cladding layer alloy powder material of high heat-intensity and cladding layer preparation method |
| CN111112794A (en) * | 2020-01-14 | 2020-05-08 | 三峡大学 | Third-phase reinforced metal matrix composite material arc additive manufacturing method and equipment |
| CN114515887A (en) * | 2022-03-11 | 2022-05-20 | 郑州机械研究所有限公司 | Preparation method of low-dilution-rate surfacing wear-resistant plate |
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Application publication date: 20100609 |