CN103331441A - Cobalt-based metal ceramic alloy powder dedicated to laser cladding of stamping die - Google Patents
Cobalt-based metal ceramic alloy powder dedicated to laser cladding of stamping die Download PDFInfo
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- CN103331441A CN103331441A CN2013102417560A CN201310241756A CN103331441A CN 103331441 A CN103331441 A CN 103331441A CN 2013102417560 A CN2013102417560 A CN 2013102417560A CN 201310241756 A CN201310241756 A CN 201310241756A CN 103331441 A CN103331441 A CN 103331441A
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Abstract
The invention discloses cobalt-based metal ceramic alloy powder dedicated to laser cladding of a stamping die. The cobalt-based metal ceramic alloy powder comprises the following components in percentage by weight: 12-14 percent of silicon carbide, 0.3-0.5 percent of carbon, 4-6 percent of calcium fluoride, 4-6 percent of silicon nitride, 1-3 percent of boron, 22-27 percent of chromium, 0.3-0.7 percent of vanadium, 5-7 percent of ferrum, 12-18 percent of molybdenum, 1.0-1.4 percent of manganese, and the balance of cobalt. The cobalt-based metal ceramic alloy powder is dedicated to the laser cladding of the stamping die, the compactness of metal structures of the stamping die is improved, and the defects of air holes, cracks and shrinkage cavities of a cladding layer are reduced, so that the hardness, the strength, the abrasion performance, the corrosion resistance and the heat resistance of the stamping die are improved.
Description
Technical field
The present invention relates to a kind of alloy powder, refer to a kind of cobalt-based cermet powder that is exclusively used in the diel laser melting coating especially.
Background technology
Laser has high brightness, high directivity, high monochromaticity, high coherence's characteristics, is just used by growing field now, and laser melting coating is exactly a kind of in the process for treating surface.That summarizes says, the principle of laser melting coating is utilized high energy laser beam irradiation 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 that is added, and forms the new liquid-metal layer of one deck.Treat after the laser beam scanning that liquid-metal layer cooling rapidly forms the solid-state cladding layer of one deck thus in the metal surface.Diel is blank to be become the instrument of the product of given shape and size is arranged.The material requirements of making diel has good wearability, obdurability, fatigue fracture, special occasions needs corrosion resistance and hear resistance.If right diel integral body all uses the material that satisfies above-mentioned mechanical performance to make, the cost of diel is very high so.If a kind of cermet powder that is exclusively used in the diel laser melting coating can be provided, have good wearability, obdurability and fatigue fracture to satisfy diel, so only need to carry out laser melting coating on the surface of diel, the mechanical performance of raising and blank contact site can satisfy instructions for use, can reduce the diel cost greatly so.
Summary of the invention
Technical problem to be solved by this invention is: a kind of cobalt-based cermet powder that is exclusively used in the diel laser melting coating is provided, this cobalt-based cermet powder is exclusively used in the laser melting coating of diel, improve diel metal structure compactness, reduce pore, crackle and the shrinkage cavity defect of cladding layer, thereby improve hardness, intensity, wearability, corrosion resistance and the hear resistance of diel.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of cobalt-based cermet powder that is exclusively used in the diel laser melting coating, by weight percentage, comprise 12-14% carborundum, 0.3-0.5% carbon, 4-6% calcirm-fluoride, the 4-6% silicon nitride, 1-3% boron, 22-27% chromium, 0.3-0.7% vanadium, 5-7% iron, the 12-18% molybdenum, 1.0-1.4% manganese, surplus is cobalt.
Wherein, the cobalt-based cermet powder optimum ratio that is exclusively used in the diel laser melting coating comprises 13% carborundum, 0.4% carbon, and 5% calcirm-fluoride, 5% silicon nitride, 2% boron, 25% chromium, 0.5% vanadium, 6% iron, 15% molybdenum, 1.2% manganese, surplus is cobalt.
The effect of each composition is as follows in the cobalt-based cermet powder among the present invention:
Cobalt (Co): as cermet substrate, thorough fusion during cladding together forms laser molten pool with the diel base material of molten condition, for other elements or compound in the molten bath evenly the distribution after coagulation become cladding layer, to increase cladding layer hardness.
Carborundum (SiC) particle: in laser cladding process, do not melt, cobalt-based cermet powder evenly sprays from the powder shower nozzle of laser head to the diel laser melting coating time, carborundum is evenly distributed in the molten bath, be present in the cladding layer as strengthening particulate, greatly strengthened the hardness of cladding layer.
Carbon (C): belong to nonmetalloid, carbon content is more high, hardness is just more high, anti-wear performance is just more good, 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 the selection of C content guarantees that wearability is satisfied in diel in this cermet powder, take into account toughness and corrosion resistance as much as possible.
Calcirm-fluoride (CaF2): as adding material, the internal stress when solidifying for the minimizing cladding layer defectives such as fire check, shrinkage cavity, shrinkage porosite occur after preventing from solidifying, and improves the compactness of metal inside tissue.
Silicon nitride (SiN4): exist as second kind of ceramic particle except carborundum (SiC), in cladding process, do not melt, but the thermal absorptivity to laser is big, can accelerate heat dispersing, and as the mitigation of soft metallic element and ultrahigh hardness ceramic particle, strengthen creep resistance, non-oxidizability improves corrosion resistance.
Boron (B): have the intercrystalline strengthening effect, can improve the hardness of cladding layer, intensity can improve the quenching degree of steel, the normalizing attitude tissue that impels steel by pearlite to bainite transformation.
Chromium (Cr): have stronger solution strengthening ability, improve the intensity of cladding layer, can increase the quenching degree of steel and the deformability after the quenching, the quenching degree of raising, and make cladding layer have good corrosion resistance, wearability, hardness, elasticity, coercive force, anti-brute force and hear resistance.
Vanadium (V): have the refined crystalline strengthening effect, can improve the quenching degree of resistance to tempering and material, also can form carbide with carbon.
Iron (Fe): identical with the material of stamping die basal body, increase the compatibility of liquid metal and matrix, the intensity of raising cladding layer metallurgical binding, make this cermet powder with the full and uniform fusion of diel.
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.
Manganese (Mn): the quenching degree that improves steel strongly, all can play bigger solution strengthening effect to ferrite and austenite, make steel possess high intensity and hardness, when the too high meeting of manganese makes steel have tangible temper brittleness, manganese impels austenite to grow up, and makes steel to overheated responsive.
After having adopted technique scheme, effect of the present invention is: this cobalt-based cermet powder is specifically designed to the laser melting coating of diel, can fully merge with the diel base material, each composition is uniformly distributed in the cladding layer, reduce the pore of cladding layer, crackle and shrinkage cavity defect, adopt the ultrahigh hardness ceramic particle to improve the hardness of diel, select some trace elements to improve the diel wearability in addition again, corrosion resistance, wearability, hear resistance and intensity, prolong diel service life, and need not the whole high-performance material that all adopts of diel and make, reduced the diel cost.
The specific embodiment
The present invention is described in further detail below by specific embodiment.
Embodiment 1
With 120g carborundum, 3g carbon, 40g calcirm-fluoride, 40g silicon nitride, 10g boron, 220g chromium, 3g vanadium, 50g iron, 120g molybdenum, 10g manganese, the 384g cobalt mixes fully, obtains 100-200 purpose cobalt-based cermet powder.
Embodiment 2
With 140g carborundum, 5g carbon, 60g calcirm-fluoride, 60g silicon nitride, 30g boron, 270g chromium, the vanadium of 7g, 70g iron, 180g molybdenum, 14g manganese, the 164g cobalt mixes fully, obtains 100-200 purpose cobalt-based cermet powder.
Embodiment 3
With 130g carborundum, 4g carbon, 50g calcirm-fluoride, 50g silicon nitride, 20g boron, 250g chromium, 5g vanadium, 60g iron, 150g molybdenum, 12g manganese, the 269g cobalt mixes fully, obtains 100-200 purpose cobalt-based cermet powder.
The cermet powder that mixes among this embodiment 3 powder injection hole by laser head is evenly sprayed, powder feeding direction and the laser beams coaxial of cermet powder, the optical maser wavelength of laser are 1.06um, and power output is 4000W, the speed of service is 3m/min, and the single track width is 2mm.The required position of carrying out laser melting coating of diel is generally diel and shears working surfaces such as position, forming surface, die cavity.The diel that obtains through laser melting coating is carried out mechanical detection and is obtained following data: (distance in the following table is that the lowest surface with cladding layer is base plane, and base plane is above for just, and base plane is following for bearing)
Any technical staff is equal to the technical scheme of replacing or changing according to technical scheme of the present invention and inventive concept and should be fallen within protection scope of the present invention within the technical scope that the present invention discloses.
Claims (2)
1. be exclusively used in the cobalt-based cermet powder of diel laser melting coating, by weight percentage, comprise 12-14% carborundum, 0.3-0.5% carbon, 4-6% calcirm-fluoride, the 4-6% silicon nitride, 1-3% boron, 22-27% chromium, 0.3-0.7% vanadium, 5-7% iron, the 12-18% molybdenum, 1.0-1.4% manganese, surplus is cobalt.
2. the cobalt-based cermet powder that is exclusively used in the diel laser melting coating as claimed in claim 1 is characterized in that: comprise 13% carborundum, 0.4% carbon, 5% calcirm-fluoride, 5% silicon nitride, 2% boron, 25% chromium, 0.5% vanadium, 6% iron, 15% molybdenum, 1.2% manganese, surplus is cobalt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310241756.0A CN103331441B (en) | 2013-06-18 | 2013-06-18 | Special in the cobalt based ceramic metal powdered alloy of press tool laser melting coating |
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| CN201310241756.0A CN103331441B (en) | 2013-06-18 | 2013-06-18 | Special in the cobalt based ceramic metal powdered alloy of press tool laser melting coating |
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| CN103331441A true CN103331441A (en) | 2013-10-02 |
| CN103331441B CN103331441B (en) | 2016-06-08 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602858A (en) * | 2013-11-20 | 2014-02-26 | 张翀昊 | Special cobalt base metal ceramic alloy powder for continuous fiber laser cladding |
| CN103600066A (en) * | 2013-11-20 | 2014-02-26 | 毛桂林 | Cobalt-base alloy powder special for continuous-wave fiber laser cladding |
| CN103614721A (en) * | 2013-11-20 | 2014-03-05 | 刘晓东 | Special powdered alloy for cladding process of continuous wave optical fiber laser |
| CN103614720A (en) * | 2013-11-20 | 2014-03-05 | 范贺良 | Special cobalt-based metal ceramic powdered alloy for cladding process of continuous wave optical fiber laser |
| CN103611927A (en) * | 2013-11-20 | 2014-03-05 | 柳岸敏 | Cobalt-based metallic ceramic alloy powder special for continuous wave fiber laser cladding |
| CN106868497A (en) * | 2015-12-14 | 2017-06-20 | 浙江巨化装备制造有限公司 | The surface reinforcing method and its device of a kind of end-sealing die |
| CN108103500A (en) * | 2017-12-22 | 2018-06-01 | 西安交通大学 | A kind of stretching prestressing force cermet die casting and preparation method thereof |
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| GB1298944A (en) * | 1969-08-26 | 1972-12-06 | Int Nickel Ltd | Powder-metallurgical products and the production thereof |
| US20030082393A1 (en) * | 2001-10-26 | 2003-05-01 | Ngk Insulators, Ltd. | Heat sink material |
| 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 |
| CN102990060A (en) * | 2012-12-19 | 2013-03-27 | 江苏新亚特钢锻造有限公司 | Silicide particle reinforced laser-clad high abrasion resistance nickel-base alloy powder and preparation method thereof |
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2013
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1298944A (en) * | 1969-08-26 | 1972-12-06 | Int Nickel Ltd | Powder-metallurgical products and the production thereof |
| US20030082393A1 (en) * | 2001-10-26 | 2003-05-01 | Ngk Insulators, Ltd. | Heat sink material |
| 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 |
| CN102990060A (en) * | 2012-12-19 | 2013-03-27 | 江苏新亚特钢锻造有限公司 | Silicide particle reinforced laser-clad high abrasion resistance nickel-base alloy powder and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602858A (en) * | 2013-11-20 | 2014-02-26 | 张翀昊 | Special cobalt base metal ceramic alloy powder for continuous fiber laser cladding |
| CN103600066A (en) * | 2013-11-20 | 2014-02-26 | 毛桂林 | Cobalt-base alloy powder special for continuous-wave fiber laser cladding |
| CN103614721A (en) * | 2013-11-20 | 2014-03-05 | 刘晓东 | Special powdered alloy for cladding process of continuous wave optical fiber laser |
| CN103614720A (en) * | 2013-11-20 | 2014-03-05 | 范贺良 | Special cobalt-based metal ceramic powdered alloy for cladding process of continuous wave optical fiber laser |
| CN103611927A (en) * | 2013-11-20 | 2014-03-05 | 柳岸敏 | Cobalt-based metallic ceramic alloy powder special for continuous wave fiber laser cladding |
| CN103602858B (en) * | 2013-11-20 | 2015-11-18 | 张翀昊 | Be exclusively used in the cobalt-based cermet powder of continous way optical-fiber laser cladding |
| CN106868497A (en) * | 2015-12-14 | 2017-06-20 | 浙江巨化装备制造有限公司 | The surface reinforcing method and its device of a kind of end-sealing die |
| CN108103500A (en) * | 2017-12-22 | 2018-06-01 | 西安交通大学 | A kind of stretching prestressing force cermet die casting and preparation method thereof |
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| Publication number | Publication date |
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| CN103331441B (en) | 2016-06-08 |
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Effective date of registration: 20160602 Address after: Wujin District of Jiangsu city in Changzhou province 213164 Chang Wu Road No. 801, Changzhou science and Technology City Tianhong building A block 8 Building Patentee after: Changzhou Tengen Industry Development Co., Ltd. Address before: 215636 Daxin village, Daxin Town, Suzhou, Jiangsu, Zhangjiagang Patentee before: Jiangsu Hehao Laser Technology Co., Ltd. |
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Address after: Wujin District of Jiangsu city in Changzhou province 213164 Chang Wu Road No. 801, Changzhou science and Technology City Tianhong building A block 8 Building Patentee after: Changzhou Tianzheng industrial development Limited by Share Ltd Address before: Wujin District of Jiangsu city in Changzhou province 213164 Chang Wu Road No. 801, Changzhou science and Technology City Tianhong building A block 8 Building Patentee before: Changzhou Tengen Industry Development Co., Ltd. |