CN101880483B - Laser ceramic alloy coating and preparation method and application thereof - Google Patents
Laser ceramic alloy coating and preparation method and application thereof Download PDFInfo
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- CN101880483B CN101880483B CN 201010187680 CN201010187680A CN101880483B CN 101880483 B CN101880483 B CN 101880483B CN 201010187680 CN201010187680 CN 201010187680 CN 201010187680 A CN201010187680 A CN 201010187680A CN 101880483 B CN101880483 B CN 101880483B
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Abstract
The invention discloses a laser ceramic alloy coating and a preparation method and application thereof. The laser ceramic alloy coating comprises the following components in parts by weight: 50-55 parts of nano silicon nitride, 8-9 parts of silane coupling agent, 2-3 parts of nano Y2O3, 1-2 parts of nano CeO, 2500-2600 parts of acetone and 15-20 parts of abietic resin DS-896. The laser ceramic alloy coating can be applied to preparing a laser ceramic alloying part. The wear-resisting property of a workpiece can be improved by adopting the coating as a metal material workpiece laser-reinforcedlight-absorption coating; compared with adopting black coating, grey coating and phosphorization light-absorption coating adopted by laser quenching at present, the wear-resisting property can be improved by 1 time by adopting the coating to carry out metal material laser-quenching light-absorption pretreatment; compared with an unhardened workpiece, the wear-resisting property can be improved by1 time, and the coating cost is lower than 0.03yuan/cm2.
Description
Technical field
The invention belongs to metallic substance laser reinforcing and extinction coating preparing technical field, particularly a kind of laser ceramic alloy coating.
Background technology
Carburizing, nitriding, implantation technique are arranged in the traditional metal thermal treatment process, and be used widely.Be to have mentioned in the patent documentation of CN1126123 a kind of the liquid aluminum or aluminum alloy being infiltrated in the strengthening phase of being made up of silit like publication number, thus the method for intensity, hardness and the wear resisting property of raising metal surface.But carburizing, nitriding, implantation technique are used for local strengthening has very big difficulty, and the wear resisting property of gained metal and quenching strengthening process are same class.
Ceramic post sintering also is widely used in the cutter field, and for example application number is that the Chinese invention patent of CN98122105 discloses an a kind of ceramic wimet compound tool and technology thereof.But this technology also exist fragility, expensive and can't local strengthening etc. problem.
Summary of the invention
For the shortcoming and deficiency that remedy prior art, primary and foremost purpose of the present invention is to provide a kind of laser ceramic alloy coating.
Another object of the present invention is to provide the preparation method of above-mentioned laser ceramic alloy coating.
Another purpose of the present invention is to provide a kind of laser ceramic alloy parts that are prepared from above-mentioned laser ceramic alloy coating.
A purpose more of the present invention is to provide a kind of preparation method of above-mentioned laser ceramic alloy parts.
The object of the invention is realized through following technical proposals: a kind of laser ceramic alloy coating, and this laser ceramic alloy coating is made up of the following component of meter by weight:
50~55 parts of nano-silicon nitrides
8~9 parts of silane coupling agents
Nanometer Y
2O
32~3 parts
Nano Ce O
21~2 part
2500~2600 parts in acetone
15~20 parts of Gum Rosin DS-896.
The preparation method of above-mentioned a kind of laser ceramic alloy coating comprises following operation steps: with nano-silicon nitride, silane coupling agent, nanometer Y
2O
3, nano Ce O
2Put into the dispersion slot of ultrasonic dispersing appearance with Gum Rosin DS-896, the acetone of 2/3rds weight is poured in the dispersion slot, cover the groove lid of dispersion slot; Start the ultrasonic dispersing appearance, disperseed stirring reaction 40~90 minutes, obtain laser ceramic alloy coating; Use the acetone of remaining 1/3rd weight to carry out temperature regulation in the dispersion process, temperature is controlled at below 80 ℃, disperseing the stirring reaction end acetone all to be poured in the dispersion slot in preceding 10~20 minutes.Preparing range request carries out under ventilated environment.
Said silane coupling agent is HG-560, HG-550, HG-570, A-1100 or KBM-903.
Said Gum Rosin DS-896 is from Guangzhou thunder width of cloth Science and Technology Ltd..
The volume of said dispersion slot is 2~2.5 times of laser ceramic alloy coating volume; The groove lid of said dispersion slot is the crown cap with thermal conductive resin, is preferably stainless steel cover.
A kind of laser ceramic alloy parts that are prepared from above-mentioned laser ceramic alloy coating.
The preparation method of above-mentioned laser ceramic alloy parts comprises following operation steps:
(1) surface-conditioning of pending metal parts is clean;
(2) with spread coating or spraying method laser ceramic alloy coating is applied to the surface of pending metal parts, coating thickness is 0.01~0.03mm, requires thickness even, does not pile up, and is thin only and obviously see matrix;
(3) adopt laser scanning to be coated with the surface of the metal parts of laser ceramic alloy coating, obtain the laser ceramic alloy parts; Integration broadband hot spot or focusing rectangle hot spot are used in said laser scanning; Hot spot requires evenly, no hole, non-notch; The static power density of said hot spot is 70~80W/mm
2, the speed of said scanning is being a heat-up time to scan in 0.5~0.6 second.
Said the cleaning out of step (1) is the surperficial degreasing de-iron rust with pending metal parts.
The said laser of step (3) is to adopt CO
2Laser apparatus sends.
Principle of the present invention is: the present invention has used the coupling technology between nanotechnology, rare earth utilisation technology and the material of different nature; Adopt nano-ceramic powder as main reinforcer; Adopt coupling agent HG-560 that ceramic phase and metallographic phase are combined closely; Adopt nano rare earth to improve the density of strengthening layer simultaneously, adopt rosin to prevent the coating deposition as promoting agent.
The present invention has introduced the notion of " some heat-up time "; So-called " some heat-up time " is the time of some processing stand laser radiations; Utilize the heat conductivility of metal to be much better than this character of air, come reference mark heat-up time through sweep velocity and spot size, sweep velocity is more little, and hot spot is big more, and the time of some some laser radiation is just long more, and available strengthening layer is just thick more;
Static power density=laser output power ÷ facula area.
Laser ceramic alloyization is an expansion infiltrate journey, and he has benefited from the activity of nano material, the activation boosting of rare earth, and the moment high temperature of LASER HEATING is opened the top layer passage, thereby obtains the ceramal layer.
Need in the production to select model specification for use according to daily amount of preparation; The size of the dispersion slot of ultrasonic dispersing appearance will be mated with preparation amount, and the volume that requires groove is about 2 times of preparation amount; It is heat conduction good metal lid that the groove lid of the ultrasonic dispersing appearance of being selected for use requires, and has the function that is back to the condensation acetone in the groove from collecting.
The present invention compared with prior art has following advantage: laser ceramic alloy coating of the present invention, under CO2 laser apparatus LASER HEATING environment, infilter ceramics component in the metal, and obtain 0.10~0.25mm ceramal layer, can be used for the local strengthening of parts; Through the parts of ceramalization, except obtaining the ceramal layer, secondly the top layer still is a Laser Hardened Layer; The extinction coating that adopts this coating to strengthen as the metallic substance workpiece laser can improve the wear resisting property of workpiece; Adopt this coating to carry out the pre-treatment of metallic substance laser quenching extinction, with the present black paint that adopts of laser quenching, grey coating with the phosphatization extinction pre-treatment compare, wear resisting property can double; With compare without the workpiece that quenches, wear resisting property can double; Through the parts of laser ceramic alloyization, about its wear resisting property was compared with carburizing, nitriding, laser reinforcing and can be doubled, the coating cost was lower than 0.03 yuan/cm
2
Description of drawings
Fig. 1 is the laser ceramic alloy metallograph.
Embodiment
Below in conjunction with concrete instance and accompanying drawing the present invention is done further detailed narration, but implementation method of the present invention is flexible, is not limited only to this routine described concrete operations mode.
Embodiment 1
With 50 weight part nano-silicon nitrides, 8 weight part silane coupling agent HG-560,2 weight part nanometer Y
2O
3, 1 weight part nano Ce O
2Put into the dispersion slot (volume of dispersion slot is 2 times of laser ceramic alloy coating volume) of ultrasonic dispersing appearance with 20 weight part Gum Rosin DS-896 (purchasing thunder width of cloth Science and Technology Ltd.) in Guangzhou; 1667 weight part acetone (technical pure) are poured in the dispersion slot, covered the stainless steel cover of dispersion slot; Start the ultrasonic dispersing appearance, disperseed stirring reaction 60 minutes, obtain the laser ceramic alloy coating of light grey emulsion form; Use 833 weight part acetone (technical pure) to carry out temperature regulation in the dispersion process, temperature is controlled at below 80 ℃, disperseing stirring reaction to finish acetone all to be poured in the dispersion slot in preceding 10 minutes.Preparing range request carries out under ventilated environment.
Adopt above-mentioned gained laser ceramic alloy coating to prepare the laser ceramic alloy parts, preparation comprises following operation steps:
(1) surface-conditioning of pending metal parts is clean, degreasing, de-iron rust;
(2) with spread coating or spraying method laser ceramic alloy coating is applied to the surface of pending metal parts, coating thickness is 0.01mm, requires thickness even, does not pile up, and is thin only and obviously see matrix;
(3) adopt CO
2The laser scanning that laser apparatus sends is coated with the surface of the metal parts of laser ceramic alloy coating, obtains the laser ceramic alloy parts; Integration broadband hot spot is used in said laser scanning; Hot spot requires evenly, no hole, non-notch; The static power density of said hot spot is 78W/mm
2, the speed of said scanning is being a heat-up time to scan in 0.5 second.
Embodiment 2
With 55 weight part nano-silicon nitrides, 8.7 weight part silane coupling agent HG-550,2.5 weight part nanometer Y
2O
3, 1.8 weight part nano Ce O
2Put into the dispersion slot (volume of dispersion slot is 2.5 times of laser ceramic alloy coating volume) of ultrasonic dispersing appearance with 15 weight part Gum Rosin DS-896 (purchasing thunder width of cloth Science and Technology Ltd.) in Guangzhou; 1733 weight part acetone (technical pure) are poured in the dispersion slot, covered the stainless steel cover of dispersion slot; Start the ultrasonic dispersing appearance, disperseed stirring reaction 50 minutes, obtain the laser ceramic alloy coating of light grey emulsion form; Use 867 weight part acetone (technical pure) to carry out temperature regulation in the dispersion process, temperature is controlled at below 80 ℃, disperseing stirring reaction to finish acetone all to be poured in the dispersion slot in preceding 20 minutes.Preparing range request carries out under ventilated environment.
Adopt above-mentioned gained laser ceramic alloy coating to prepare the laser ceramic alloy parts, preparation comprises following operation steps:
(1) surface-conditioning of pending metal parts is clean, degreasing, de-iron rust;
(2) with spread coating or spraying method laser ceramic alloy coating is applied to the surface of pending metal parts, coating thickness is 0.02mm, requires thickness even, does not pile up, and is thin only and obviously see matrix;
(3) adopt CO
2The laser scanning that laser apparatus sends is coated with the surface of the metal parts of laser ceramic alloy coating, obtains the laser ceramic alloy parts; The focusing rectangle hot spot is used in said laser scanning; Hot spot requires evenly, no hole, non-notch; The static power density of said hot spot is 75W/mm
2, the speed of said scanning is being a heat-up time to scan in 0.6 second.
Embodiment 3
With 52 weight part nano-silicon nitrides, 8.5 weight part silane coupling agent HG-570,3 weight part nanometer Y
2O
3, 1.5 weight part nano Ce O
2Put into the dispersion slot (volume of dispersion slot is 2.2 times of laser ceramic alloy coating volume) of ultrasonic dispersing appearance with 18 weight part Gum Rosin DS-896 (purchasing thunder width of cloth Science and Technology Ltd.) in Guangzhou; 1700 weight part acetone (technical pure) are poured in the dispersion slot, covered the stainless steel cover of dispersion slot; Start the ultrasonic dispersing appearance, disperseed stirring reaction 40 minutes, obtain the laser ceramic alloy coating of light grey emulsion form; Use 850 weight part acetone (technical pure) to carry out temperature regulation in the dispersion process, temperature is controlled at below 80 ℃, disperseing stirring reaction to finish acetone all to be poured in the dispersion slot in preceding 15 minutes.Preparing range request carries out under ventilated environment.
Adopt above-mentioned gained laser ceramic alloy coating to prepare the laser ceramic alloy parts, preparation comprises following operation steps:
(1) surface-conditioning of pending metal parts is clean, degreasing, de-iron rust;
(2) with spread coating or spraying method laser ceramic alloy coating is applied to the surface of pending metal parts, coating thickness is 0.02mm, requires thickness even, does not pile up, and is thin only and obviously see matrix;
(3) adopt CO
2The laser scanning that laser apparatus sends is coated with the surface of the metal parts of laser ceramic alloy coating, obtains the laser ceramic alloy parts; Integration broadband hot spot is used in said laser scanning; Hot spot requires evenly, no hole, non-notch; The static power density of said hot spot is 70W/mm
2, the speed of said scanning is being a heat-up time to scan in 0.55 second.
Embodiment 4
With 54 weight part nano-silicon nitrides, 9 weight part silane coupling A-1100 (purchasing), 2 weight part nanometer Y in U.S. combinating carbide company
2O
3, 2 weight part nano Ce O
2Put into the dispersion slot (volume of dispersion slot is 2 times of laser ceramic alloy coating volume) of ultrasonic dispersing appearance with 16 weight part Gum Rosin DS-896 (purchasing thunder width of cloth Science and Technology Ltd.) in Guangzhou; 1667 weight part acetone (technical pure) are poured in the dispersion slot, covered the stainless steel cover of dispersion slot; Start the ultrasonic dispersing appearance, disperseed stirring reaction 70 minutes, obtain the laser ceramic alloy coating of light grey emulsion form; Use 833 weight part acetone (technical pure) to carry out temperature regulation in the dispersion process, temperature is controlled at below 80 ℃, disperseing stirring reaction to finish acetone all to be poured in the dispersion slot in preceding 18 minutes.Preparing range request carries out under ventilated environment.
Adopt above-mentioned gained laser ceramic alloy coating to prepare the laser ceramic alloy parts, preparation comprises following operation steps:
(1) surface-conditioning of pending metal parts (outside diameter is that 40mm, thickness are the 45# steel annulus of 10mm) is clean, degreasing, de-iron rust;
(2) with spread coating or spraying method laser ceramic alloy coating is applied to the surface of pending metal parts, coating thickness is 0.01mm, requires thickness even, does not pile up, and is thin only and obviously see matrix;
(3) adopt CO
2The laser scanning that laser apparatus sends is coated with the surface of the metal parts of laser ceramic alloy coating, obtains laser ceramic alloy parts T1; The focusing rectangle hot spot is used in said laser scanning; Hot spot requires evenly, no hole, non-notch; The static power density of said hot spot is 80W/mm
2, the speed of said scanning is being a heat-up time to scan in 0.58 second.
Then on opticmicroscope, observe, the result is as shown in Figure 1.
Embodiment 5
With 51 weight part nano-silicon nitrides, 8 weight part silane coupling agent KBM-903 (purchasing), 3 weight part nanometer Y in Japanese Shin-Etsu Chemial Co., Ltd
2O
3, 1 weight part nano Ce O
2Put into the dispersion slot (volume of dispersion slot is 2.5 times of laser ceramic alloy coating volume) of ultrasonic dispersing appearance with 19 weight part Gum Rosin DS-896 (purchasing thunder width of cloth Science and Technology Ltd.) in Guangzhou; 1667 weight part acetone (technical pure) are poured in the dispersion slot, covered the stainless steel cover of dispersion slot; Start the ultrasonic dispersing appearance, disperseed stirring reaction 90 minutes, obtain the laser ceramic alloy coating of light grey emulsion form; Use 833 weight part acetone (technical pure) to carry out temperature regulation in the dispersion process, temperature is controlled at below 80 ℃, disperseing stirring reaction to finish acetone all to be poured in the dispersion slot in preceding 12 minutes.Preparing range request carries out under ventilated environment.
Adopt above-mentioned gained laser ceramic alloy coating to prepare the laser ceramic alloy parts, preparation comprises following operation steps:
(1) surface-conditioning of pending metal parts (outside diameter is that 40mm, thickness are the 45# steel annulus of 10mm) is clean, degreasing, de-iron rust;
(2) with spread coating or spraying method laser ceramic alloy coating is applied to the surface of pending metal parts, coating thickness is 0.03mm, requires thickness even, does not pile up, and is thin only and obviously see matrix;
(3) adopt CO
2The laser scanning that laser apparatus sends is coated with the surface of the metal parts of laser ceramic alloy coating, obtains laser ceramic alloy parts T2; Integration broadband hot spot is used in said laser scanning; Hot spot requires evenly, no hole, non-notch; The static power density of said hot spot is 80W/mm
2, the speed of said scanning is being a heat-up time to scan in 0.52 second.
Embodiment 6: wearing test
With two outside diameters is that 40mm, thickness are that the 45# steel annulus of 10mm carries out laser surface hardening respectively, obtains laser hardened sample, is numbered C1 and C2 respectively; With embodiment 4 gained T1 and embodiment 5 gained T2 is the laser ceramic alloy sample.
Test conditions: wearing test is carried out on M-200 type wear testing machine, adopts two-wheeled to rolling, and rolling adds the test of slip.
TP: following wheel speed is 400 rev/mins, and last wheel speed is 360 rev/mins, and relative sliding velocity is 5 meters/minute, and positive pressure is 15Kgf (147N), dry grinding, and wearing-in period is 10 hours.
Test-results: test-results is seen shown in the table 1.
Table 1 wearing test result
Wearing test interpretation of result: can find out that from the wearing test result under equal abrasive conditions, 45 steel obviously are superior to the only sample of process laser surface hardening through the sample wear resisting property of ceramic surface Alloying Treatment.
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
2. a kind of laser ceramic alloy coating according to claim 1 is characterized in that: said silane coupling agent is HG-560, HG-550, A-1100 or KBM-903.
3. the preparation method of a kind of laser ceramic alloy coating according to claim 1 is characterized in that comprising following operation steps: with nano-silicon nitride, silane coupling agent, nanometer Y
2O
3, nano Ce O
2Put into the dispersion slot of ultrasonic dispersing appearance with Gum Rosin DS-896, the acetone of 2/3rds weight is poured in the dispersion slot, cover the groove lid of dispersion slot; Start the ultrasonic dispersing appearance, disperseed stirring reaction 40~90 minutes, obtain laser ceramic alloy coating; Use the acetone of remaining 1/3rd weight to carry out temperature regulation in the dispersion process, temperature is controlled at below 80 ℃,, acetone is all poured in the dispersion slot disperseing stirring reaction to finish preceding 10~20 minutes.
4. preparation method according to claim 3 is characterized in that: the volume of said dispersion slot is 2~2.5 times of laser ceramic alloy coating volume; The groove lid of said dispersion slot is the crown cap with thermal conductive resin.
5. preparation method according to claim 3 is characterized in that: the groove lid of said dispersion slot is a stainless steel cover.
6. laser ceramic alloy parts that are prepared from the described laser ceramic alloy coating of claim 1.
7. the preparation method of laser ceramic alloy parts according to claim 6 is characterized in that comprising following operation steps:
(1) surface-conditioning of pending metal parts is clean;
(2) with spread coating or spraying method laser ceramic alloy coating is applied to the surface of pending metal parts, coating thickness is 0.01~0.03mm;
(3) adopt laser scanning to be coated with the surface of the metal parts of laser ceramic alloy coating, obtain the laser ceramic alloy parts; Integration broadband hot spot or focusing rectangle hot spot are used in said laser scanning, and the static power density of said hot spot is 70~80W/mm
2, the speed of said scanning is being a heat-up time to scan in 0.5~0.6 second.
8. the preparation method of laser ceramic alloy parts according to claim 7 is characterized in that: said the cleaning out of step (1) is the surperficial degreasing de-iron rust with pending metal parts.
9. the preparation method of laser ceramic alloy parts according to claim 7 is characterized in that: the said laser of step (3) is to adopt CO
2Laser apparatus sends.
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1116704A1 (en) * | 2000-01-11 | 2001-07-18 | Metalloceramica Vanzetti S.p.A. | Nanocomposite dense sintered silicon carbonitride ceramic cutting tool |
CN1776022A (en) * | 2005-11-23 | 2006-05-24 | 邹志尚 | Hard composite nano ceramic film cladding for use on gear and shaft surface of gearbox |
CN101210325A (en) * | 2007-12-25 | 2008-07-02 | 浙江工业大学 | Nano composite anti-wear coating composition used for hot forging die and application thereof |
CN101338426A (en) * | 2008-08-07 | 2009-01-07 | 沈阳大陆激光成套设备有限公司 | Laser ceramic alloying strengthen process for pick head of coal winning machine and coal cutter |
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2010
- 2010-05-24 CN CN 201010187680 patent/CN101880483B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1116704A1 (en) * | 2000-01-11 | 2001-07-18 | Metalloceramica Vanzetti S.p.A. | Nanocomposite dense sintered silicon carbonitride ceramic cutting tool |
CN1776022A (en) * | 2005-11-23 | 2006-05-24 | 邹志尚 | Hard composite nano ceramic film cladding for use on gear and shaft surface of gearbox |
CN101210325A (en) * | 2007-12-25 | 2008-07-02 | 浙江工业大学 | Nano composite anti-wear coating composition used for hot forging die and application thereof |
CN101338426A (en) * | 2008-08-07 | 2009-01-07 | 沈阳大陆激光成套设备有限公司 | Laser ceramic alloying strengthen process for pick head of coal winning machine and coal cutter |
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