CN103600067A - Cobalt-base metal alloy powder special for continuous fiber laser cladding - Google Patents
Cobalt-base metal alloy powder special for continuous fiber laser cladding Download PDFInfo
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- CN103600067A CN103600067A CN201310589602.0A CN201310589602A CN103600067A CN 103600067 A CN103600067 A CN 103600067A CN 201310589602 A CN201310589602 A CN 201310589602A CN 103600067 A CN103600067 A CN 103600067A
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Abstract
The invention discloses cobalt-base metal alloy powder special for continuous fiber laser cladding. The cobalt-base metal alloy powder comprises, by weight, 11-14% of silicon carbide, 5-7% of calcium fluoride, 12-15% of molybdenum, 8-12% of chromium, 2-4% of silicon nitride, 4-6% of silicon, 0.1-0.2% of carbon, 2-4% of antimony and the balance cobalt. The cobalt-base metal alloy powder is specially applied to cladding processes of continuous fiber lasers, absorption and utilization rate of lasers is obviously increased, and formed cladding layers have high hardness, tenacity and corrosion resistance, are compact in organization and are formed without defects such as pores, cracks and contraction cavities; further, dilution rate can be effectively controlled, and the cobalt-base metal alloy powder is simple and convenient to process and free of pre-heat-treatment and post-heat treatment.
Description
Technical field
The present invention relates to a kind of alloy powder, refer to especially a kind of cobalt-based metal alloy powder that is exclusively used in the cladding of continous way optical-fiber laser.
Background technology
Laser melting coating is exactly a kind of in process for treating surface.That summarizes says, the principle of laser melting coating utilizes high energy laser beam to irradiate metal material surface exactly, substrate surface is melted rapidly, liquid metal forms a small-scale molten bath, fill in new dusty material simultaneously, in this molten bath, metal material originally mixes mutually with the powder being added, and forms the new liquid-metal layer of one deck.Treat laser beam through after, liquid-metal layer is the cooling solid-state cladding layer of one deck that forms in metal surface thus rapidly.Along with improving constantly of laser power and stability, rapid promotion and application have been obtained.Laser melting and coating technique can be widely used in the every field such as aviation, national defence, petrochemical industry, metallurgy, medicine equipment.
Yet, on domestic market, almost there is no the cermet powder of jointed fiber laser melting coating special use, common used alloy powder is mostly thermal spraying self-fluxing alloy powder used.Due to the difference of the heat transfer type of two kinds of technology, process conditions etc., thermal spraying self-fluxing alloy powder used is directly used in after jointed fiber laser melting coating, and laser absorption rate is lower, generally in 30-40% left and right.And easily there is the defects such as crackle, shrinkage porosite, shrinkage cavity, pore in cladding layer.Therefore, be necessary to develop a kind of metal alloy powders that is specifically designed to jointed fiber laser melting coating.
Summary of the invention
Technical problem to be solved by this invention is: a kind of cobalt-based metal alloy powder that is exclusively used in the cladding of continous way optical-fiber laser is provided, this cermet powder, be exclusively used in the cladding process of high energy continuous light pricker laser instrument, the absorption rate of laser obviously improves, and the cladding layer of formation has high rigidity, high tenacity, highly corrosion resistant.And microstructure of surface cladding layer is fine and close, the defects such as pore-free, crackle, shrinkage cavity, can effectively control dilution rate simultaneously. technique is simple and convenient, without heat treatment before and after cladding.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of cobalt-based metal alloy powder that is exclusively used in the cladding of continous way optical-fiber laser, by weight percentage, contains 11-14% carborundum, 5-7% calcirm-fluoride, 12-15% molybdenum, 8-12% chromium, 2-4% silicon nitride, 4-6% silicon, 0.1-0.2% carbon, 2-4% antimony, surplus is cobalt.
A kind of optimum ratio that is exclusively used in the cobalt-based metal alloy powder of continous way optical-fiber laser cladding is to contain: 12% carborundum, and 6% calcirm-fluoride, 13% molybdenum, 10% chromium, 3% silicon nitride, 5% silicon, 0.15% carbon, 3% antimony, surplus is cobalt.
In cobalt-based cermet powder of the present invention, the effect of each composition is as follows respectively:
Cobalt (Co) element: as the aggregate of alloy powder, when cladding, together form laser molten pool with the metal base of molten condition, be uniformly distributed after coagulation for other elements or compound in molten bath and become cladding layer.
Carborundum (SiC): during laser melting coating, cobalt-based cermet powder evenly sprays from the powder shower nozzle of laser head, and SiC is evenly distributed in molten bath, is present in cladding layer as strengthening particulate, has greatly strengthened the hardness of cladding layer.
Calcirm-fluoride (CaF2): the internal stress while solidifying for reducing cladding layer, after preventing from solidifying, there is the defects such as fire check, shrinkage cavity and porosity, improve the compactness of metal inside tissue.
Molybdenum (Mo): as a kind of rare earth element additive, promote grain refinement, improve the structural homogenity of cladding layer, thereby improve the friction and wear behavior of cladding layer.
Chromium (Cr): improve the intensity of cladding layer, can increase the quenching degree of steel and the deformability after quenching, the quenching degree of raising, and make cladding layer there is good corrosion resistance, wearability, hardness, elasticity, coercive force, anti-brute force and heat resistance.
Silicon nitride (SiN4): in cladding process, do not melt, but large to the thermal absorptivity of laser, can accelerate heat dispersing, and as the mitigation of soft metallic element and ultrahigh hardness ceramic particle, strengthen creep resistance, non-oxidizability, improve corrosion resistance, also can control dilution rate simultaneously.
Silicon (Si): rise in Self-fusing powder from slag making and protective effect, can preferentially form silicate with the oxygen element that enters molten bath, be covered in weld pool surface, prevent liquid metal transition oxidation, improve the wettability of liquid metal.Ferrite is had to larger admittedly molten invigoration effect, silicon energy refine pearlite tissue, but too high Si is unfavorable to the weldability of steel.
Carbon (C): belong to nonmetalloid, carbon content is higher, hardness is just higher, anti-wear performance is just better, yield point and tensile strength raise, but its toughness, plasticity, impact and corrosion resistance can reduce along with the increase of carbon content, so when in this cermet powder, the selection of C content guarantees that cladding layer meets wearability, take into account as much as possible toughness and corrosion resistance, this C content can increase cold brittleness and the aging sensitivity of steel in addition.
Antimony (Sb): fusing point is low, can be used for reducing the fusing point of alloy powder, thereby can reduce energy output
Beneficial effect of the present invention: cobalt-based cermet powder of the present invention, in continous way light pricker laser melting coating, the absorption rate of laser obviously improves, and the cladding layer of formation has high rigidity, high tenacity, highly corrosion resistant.And microstructure of surface cladding layer is fine and close, the defects such as pore-free, crackle, shrinkage cavity.Can effectively control dilution rate, technique is simple and convenient simultaneously, without heat treatment before and after cladding.
The specific embodiment
Below by specific embodiment, the present invention is described in further detail.
Embodiment 1
Be by weight percentage: 12% carborundum, 6% calcirm-fluoride, 13% molybdenum, 10% chromium, 3% silicon nitride, 5% silicon, 0.15% carbon, 3% antimony, surplus is cobalt.Through machinery, fully mix and take 500g sample, after sample preparation, obtain 200-300 object cobalt-based cermet powder.
Embodiment 2
Be by weight percentage: 11% carborundum, 5% calcirm-fluoride, 12% molybdenum, 8% chromium, 2% silicon nitride, 4% silicon, 0.1% carbon, 2% antimony, surplus is cobalt.Through machinery, fully mix and take 500g sample, after sample preparation, obtain 200-300 object cobalt-based cermet powder.
Embodiment 3
Be by weight percentage: 14% carborundum, 7% calcirm-fluoride, 15% molybdenum, 12% chromium, 4% silicon nitride, 6% silicon, 0.2% carbon, 4% antimony, surplus is cobalt.Through machinery, fully mix and take 500g sample, after sample preparation, obtain 200-300 object cobalt-based cermet powder.
The cobalt-based cermet powder being obtained by embodiment 1 preparation, at 2000W jointed fiber laser power, spot size 10mm
2, sweep speed 15mm/s, under the process conditions such as powder feeding rate 20g/min, the surface of the work that is No. 45 steel to base material carries out Laser Cladding Treatment, and under room temperature, testing result is as shown in the table:
| Sample | Absorptivity to laser | Cladding layer hardness (HV) | Dilution rate |
| Embodiment 1 | 60-80% | 1000 | 15% |
| Common Co-based alloy powder | 30-40% | 750 | 30% |
Claims (2)
1. be exclusively used in a cobalt-based metal alloy powder for continous way optical-fiber laser cladding, by weight percentage, contain 11-14% carborundum, 5-7% calcirm-fluoride, 12-15% molybdenum, 8-12% chromium, 2-4% silicon nitride, 4-6% silicon, 0.1-0.2% carbon, 2-4% antimony, surplus is cobalt.
2. a kind of cobalt-based metal alloy powder that is exclusively used in the cladding of continous way optical-fiber laser as claimed in claim 1, is characterized in that, contains: 12% carborundum, and 6% calcirm-fluoride, 13% molybdenum, 10% chromium, 3% silicon nitride, 5% silicon, 0.15% carbon, 3% antimony, surplus is cobalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310589602.0A CN103600067A (en) | 2013-11-20 | 2013-11-20 | Cobalt-base metal alloy powder special for continuous fiber laser cladding |
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| CN201310589602.0A CN103600067A (en) | 2013-11-20 | 2013-11-20 | Cobalt-base metal alloy powder special for continuous fiber laser cladding |
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| CN103600067A true CN103600067A (en) | 2014-02-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195729A (en) * | 2015-05-22 | 2015-12-30 | 中国矿业大学 | Ceramic alloy powder special for continuous optical fiber laser alloying |
| CN111441051A (en) * | 2020-05-11 | 2020-07-24 | 北京工业大学 | Laser-plasma composite energy field deposition method for cobalt-based gradient high-temperature wear-resistant antifriction coating |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008208013A (en) * | 2007-02-28 | 2008-09-11 | Dowa Metaltech Kk | Metal/ceramic binding substrate and brazing filler metal for use therein |
| CN101486136A (en) * | 2009-02-27 | 2009-07-22 | 浙江省钎焊材料与技术重点实验室 | Cu-Sn-Sb silver-free middle-temperature solder and preparation method thereof |
| CN102650012A (en) * | 2012-05-05 | 2012-08-29 | 张家港市和昊激光科技有限公司 | Special cobalt-based metal ceramic alloy powder for optical fiber laser cladding |
| CN103305831A (en) * | 2013-06-18 | 2013-09-18 | 江苏和昊激光科技有限公司 | Special cobalt-based cermet alloy powder for laser cladding of surface of bushing |
| CN103305835A (en) * | 2013-06-18 | 2013-09-18 | 江苏和昊激光科技有限公司 | Special cobalt-based ceramic alloy powder for laser cladding on surface of gear |
| CN103302286A (en) * | 2013-06-18 | 2013-09-18 | 江苏和昊激光科技有限公司 | Cobalt-based metal ceramic alloy powder exclusively used in laser cladding of turning tool |
| CN103305836A (en) * | 2013-06-18 | 2013-09-18 | 江苏和昊激光科技有限公司 | Special cobalt-based cermet alloy powder for laser cladding of grinding head |
-
2013
- 2013-11-20 CN CN201310589602.0A patent/CN103600067A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008208013A (en) * | 2007-02-28 | 2008-09-11 | Dowa Metaltech Kk | Metal/ceramic binding substrate and brazing filler metal for use therein |
| CN101486136A (en) * | 2009-02-27 | 2009-07-22 | 浙江省钎焊材料与技术重点实验室 | Cu-Sn-Sb silver-free middle-temperature solder and preparation method thereof |
| CN102650012A (en) * | 2012-05-05 | 2012-08-29 | 张家港市和昊激光科技有限公司 | Special cobalt-based metal ceramic alloy powder for optical fiber laser cladding |
| CN103305831A (en) * | 2013-06-18 | 2013-09-18 | 江苏和昊激光科技有限公司 | Special cobalt-based cermet alloy powder for laser cladding of surface of bushing |
| CN103305835A (en) * | 2013-06-18 | 2013-09-18 | 江苏和昊激光科技有限公司 | Special cobalt-based ceramic alloy powder for laser cladding on surface of gear |
| CN103302286A (en) * | 2013-06-18 | 2013-09-18 | 江苏和昊激光科技有限公司 | Cobalt-based metal ceramic alloy powder exclusively used in laser cladding of turning tool |
| CN103305836A (en) * | 2013-06-18 | 2013-09-18 | 江苏和昊激光科技有限公司 | Special cobalt-based cermet alloy powder for laser cladding of grinding head |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195729A (en) * | 2015-05-22 | 2015-12-30 | 中国矿业大学 | Ceramic alloy powder special for continuous optical fiber laser alloying |
| CN111441051A (en) * | 2020-05-11 | 2020-07-24 | 北京工业大学 | Laser-plasma composite energy field deposition method for cobalt-based gradient high-temperature wear-resistant antifriction coating |
| CN111441051B (en) * | 2020-05-11 | 2021-12-24 | 北京工业大学 | Laser-plasma composite energy field deposition method for cobalt-based gradient high-temperature wear-resistant antifriction coating |
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Application publication date: 20140226 |