CN201626977U - Device for rapidly preparing metal ceramic coatings by laser induction hybrid melt injection - Google Patents
Device for rapidly preparing metal ceramic coatings by laser induction hybrid melt injection Download PDFInfo
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- CN201626977U CN201626977U CN2010201244227U CN201020124422U CN201626977U CN 201626977 U CN201626977 U CN 201626977U CN 2010201244227 U CN2010201244227 U CN 2010201244227U CN 201020124422 U CN201020124422 U CN 201020124422U CN 201626977 U CN201626977 U CN 201626977U
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Abstract
A device for rapidly preparing metal ceramic coatings by laser induction hybrid melt injection is characterized in that a computer is respectively connected with a numerical control machine tool, an inductive heating power supply and a laser. The laser is connected with a laser head; a base is placed on the upper surface of the numerical control machine tool; an inductive heating coil is placed on the upper surface of the base; the distance between the surface of the base and the inductive heating coil ranges from 2mm to 10mm; the inductive heating coil is connected with the inductive heating power supply; a power spray nozzle is fixedly connected onto the lateral wall of the laser head; a normal included angle between the power spray nozzle and the base ranges from 30 degrees and 70 degrees; and the perpendicular distance from the tail end of the power spray nozzle to the surface of the base ranges from 10 mm to 15mm. The device has the advantages of capabilities of preheating the base, simultaneously performing laser cladding treatment, solving the problems that conventional preheating methods such as heating furnaces, oxyacetylene flames and the like are slow in preheating speed and easy to cause workpiece damage, can not completely eliminate cracks and the like.
Description
Technical field
The utility model relates to a kind of device for preparing metal-ceramic coating, relates in particular to a kind of laser induction composite and annotates the device of preparation metal-ceramic coating fast.
Background technology
Along with aero-gas turbine develops towards high flow capacity ratio, high thrust-weight ratio, high inlet temperature direction, inlet temperature improves constantly before the turbine, at present near 2000K.Be to improve the work-ing life of elevated temperature heat end pieces such as turbine outer shroud, blade, guarantee the gas turbine safe and stable operation, except that the composition that improves superalloy, preparation technology and blade design, using the protective thermal barrier coating is at present effective means.
At present, the technology at superalloy hot-end component surface preparation thermal barrier coating mainly contains plasma spraying (plasma spraying), electron beam-physical vapor deposition (EB-PVD), laser melting coating (laser cladding) etc.Wherein, the plasma spraying Thermal Barrier Coating Technologies has technical maturity, simple to operate and efficient advantages of higher, but the thermal barrier coating and the base material of preparation are mechanical bond, and its inside exists a large amount of pores and tiny crack, causes easily peeling off in the coating process under arms.The thermal barrier coating of electron beam-physical gas phase deposition technology preparation has columnar crystal structure, its working life increases substantially with respect to plasma sprayed coating, but this technological operation complexity, sedimentation effect is low, technical difficulty is big, the bonding strength of coating and base material is not high yet.The thermal barrier coating of laser melting and coating technique preparation has dense structure, and thinning ratio is low, forms the high metallurgical binding of bonding strength with base material, excellent resistance to high temperature oxidation and thermal shock resistance.But the lower and cladding layer of laser melting coating efficient metallurgical imperfection such as easily cracks and has greatly limited this Industrial Application of Technology scope.
In addition, thermal barrier coating adopts the bilayer structure of ceramic layer-tack coat simple in structure usually, makes each interface layer obvious, and different thermal expansivity easily produces thermal stresses at interlayer, causes coating degradation and inefficacy.The multilayered structure that adopts matrix metal layer, multilayer insulation layer and oxidation prevention layer and ceramic top layer to constitute, though can obtain thicker coating of relative bilayer structure and better antioxidant property, but the thermal shock resistance to coating improves not quite, and complex process, and repeatability is relatively poor with reliability.Therefore, along with improving constantly of thermal barrier coating application requiring, must develop gradient function thermal barrier coating with thermal stresses pooling feature.
In recent years, can be under the high-level efficiency condition, thermal stresses in the coating is reduced to minimum degree, thereby laser induction composite coating technique (the Zhou Shengfeng for preparing high performance flawless coating, HuangYongjun, Zeng Xiaoyan, Hu Qianwu.Microstructure characteristics of Ni-basedWC composite coatings by laser induction hybrid rapid cladding.Materials Scienceand Engineering:A, 2008,480 (1-2): 564-572) caused people's extensive interest.But, do not see bibliographical information about adopting the laser induction composite coating technique to prepare the high and flawless gradient function thermal barrier coating that have a thermal stresses pooling feature of ceramic phase content.
Summary of the invention
The purpose of this utility model has been to provide a kind of laser induction composite to annotate the device of preparation metal-ceramic coating fast, utilize the gradient function thermal barrier coating of this device preparation to have chemical ingredients, weave construction and mechanical property along coat-thickness direction continually varying characteristics in gradient, the thermal stresses of having avoided matrix and ceramic layer thermal expansivity not to match and having caused can increase substantially the thermal shock resistance and the work-ing life of coating.
The utility model is achieved like this, it comprises computer, laser apparatus, light-conducting system, laser head, focusing system, powder jet, twin-bucket automatic powder feeding device, load coil, induction heating power, numerically-controlled machine, base material, magnetizer, airway, it is characterized in that computer linking number controlled machine respectively, induction heating power and laser apparatus, laser apparatus connects laser head, the numerically-controlled machine upper surface is placed with base material, the base material upper surface is placed with load coil, the surface of base material and the distance between the load coil are at 2～10mm, load coil connects induction heating power, the fixedly connected powder jet of laser head sidewall, the angle of powder jet and base material normal direction is 30-70 °, the end of powder jet and substrate surface vertical range are 10-15mm, laser head and powder are made clicks above load coil, the load coil both sides are provided with magnetizer, the powder jet end is connected with twin-bucket automatic powder feeding device, be connected with light-conducting system and focusing system in the laser head successively, laser head top sidewall is connected with airway, and bath is arranged on the load coil.
Technique effect of the present utility model is: (1) can carry out Laser Cladding Treatment in pre-hot substrate, has overcome preheating speeds such as conventional pre-heating mean such as process furnace, oxyacetylene torch and slowly, has easily caused the workpiece damage and can not eliminate problem such as crackle fully; (2) when being carried out thermal pretreatment, base material is non-contact type processing, the preheating speed is fast, can not cause and scratch and the oxidation equivalent damage base material, and base material is after being preheating to 300～1000 ℃, specific absorption to laser beam energy increases substantially, make the energy of laser beam be mainly used in the heating powdered alloy, cover efficient thereby increased substantially laser induction composite; (3) when base material is carried out thermal pretreatment, can determine the position to the preheating zone is sticking, and needn't carry out the integral body heating that kept the integrity of base material microstructure and property to the full extent, therefore the size to base material is unrestricted with the position that needs to handle to base material; (4) can accurately control the powder feeding rate of twin-bucket automatic powder feeding device, realize that ceramic phase is the Gradient distribution of 0～90wt.% along the coat-thickness direction; (5) can obtain pore-free and flawless Thermal Barrier Coatings under the condition of 1～20 times of the simple relatively laser melting and coating technique raising of laser scanning speed, the thermal shock resistance of the relative plasma spraying identical component of its thermal shock resistance material improves 3～10 times.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the synoptic diagram of load coil of the present utility model and base material relative position.
Computer 2, laser apparatus 3, light-conducting system 4, laser head 5, focusing system 6, powder jet 7, loading hopper 8, composite powder 9, twin-bucket automatic powder feeding device 10, load coil 11, induction heating district 12, induction heating power 13, numerically-controlled machine 14, base material 15, coating 16, magnetizer 17, molten bath 18, airway in the drawings, 1,
Embodiment
As shown in Figure 1, the utility model is achieved in that Optical Maser System is made up of laser apparatus 2, light-conducting system 3 and focusing system 5, and they are positioned on the same light path; Light-conducting system 3 links to each other with laser head 4, and focusing system 5 is positioned at laser head 4, and laser beam that laser apparatus 2 sends is transferred to the surface that is focused into circular light spot after the focusing system 5 and is radiated base material 14 through light-conducting system 3; The air outlet of the airway 18 that links to each other with the inert protective gas source is between focusing system 5 and base material 14, and be aligned in the induction heating district 11 on base material 14 surfaces, the automatic powder feeding device is made up of twin-bucket automatic powder feeding device 9 and powder jet 6, wherein, twin-bucket automatic powder feeding device 9 comprises two loading hoppers 7, and powder jet 6, powder jet 6 is fixed on the laser head 4, and moves along Z-direction with laser head 4; Powder jet 6 is 30～70 ° with the angle of base material 14 surface normals, and the vertical range on the end of powder jet 6 and base material 14 surfaces is 10～15mm.When laser induction composite covers, regulate the powder feeding rate of two loading hoppers 7 of twin-bucket automatic powder feeding device 9, and utilize composite powder 8 that powder jet 6 will contain different mass per-cent ceramic phase to be blown into laser induction composite to cover in the molten bath 17 that thermal source forms, composite powder 8 melts in molten bath 17 and spreads out on the surface of base material 14, after laser induction composite covered thermal source and removes, melting layer cooling and solidification and crystallization formed coating 15; Induction heating device is made up of induction heating power 12 and load coil 10, load coil 10 links to each other with induction heating power 12, be used for base material 14 is heated, when laser induction composite covers, as shown in Figure 2, the surface and the distance between the load coil 10 of base material 14 are controlled in 2～10mm scope, for improving the heating efficiency of 10 pairs of base materials 14 of load coil, special-purpose magnetizer 16 is installed on load coil 10, and laser induced Compound Machining numerical control table, NC table is made up of with the base material clamping device computer 1, numerically-controlled machine 13.Computer 1 links to each other with laser apparatus 2, induction heating power 12 and numerically-controlled machine 13, and the laser output of control laser apparatus 2, laser head 4 is along translational motion, the induction heating power of induction heating power 12 and the moving of numerically-controlled machine 13 of Z-direction, and numerically-controlled machine 13 adopts the control of two-axle interlockings and makes the translational motion of X, Y direction.The base material clamping device is fixed on the numerically-controlled machine 13, is used for base material 14 is installed in numerically-controlled machine 13.
Claims (1)
1. a laser induction composite is annotated the device of preparation metal-ceramic coating fast, it comprises computer, laser apparatus, light-conducting system, laser head, focusing system, powder jet, twin-bucket automatic powder feeding device, load coil, induction heating power, numerically-controlled machine, base material, magnetizer, airway, it is characterized in that computer linking number controlled machine respectively, induction heating power and laser apparatus, laser apparatus connects laser head, the numerically-controlled machine upper surface is placed with base material, the base material upper surface is placed with load coil, the surface of base material and the distance between the load coil are at 2～10mm, load coil connects induction heating power, the fixedly connected powder jet of laser head sidewall, the angle of powder jet and base material normal direction is 30-70 °, the end of powder jet and substrate surface vertical range are 10-15mm, laser head and powder are made clicks above load coil, the load coil both sides are provided with magnetizer, the powder jet end is connected with twin-bucket automatic powder feeding device, be connected with light-conducting system and focusing system in the laser head successively, laser head top sidewall is connected with airway, and bath is arranged on the load coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201244227U CN201626977U (en) | 2010-03-05 | 2010-03-05 | Device for rapidly preparing metal ceramic coatings by laser induction hybrid melt injection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201244227U CN201626977U (en) | 2010-03-05 | 2010-03-05 | Device for rapidly preparing metal ceramic coatings by laser induction hybrid melt injection |
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| Publication Number | Publication Date |
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| CN201626977U true CN201626977U (en) | 2010-11-10 |
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| CN2010201244227U Expired - Fee Related CN201626977U (en) | 2010-03-05 | 2010-03-05 | Device for rapidly preparing metal ceramic coatings by laser induction hybrid melt injection |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191495A (en) * | 2010-03-05 | 2011-09-21 | 南昌航空大学 | Method for quickly preparing metal ceramic coating through laser induced composite fusioncast |
| CN103071783A (en) * | 2012-12-26 | 2013-05-01 | 南昌航空大学 | Device for preparing monotectic alloy through laser-strong magnetic field composite fusion casting |
| CN103205750A (en) * | 2013-05-08 | 2013-07-17 | 南昌航空大学 | Method for quantitatively evaluating burning loss degree of Al in laser-induction composite fused NiCrAlY coating layer |
| CN103400165A (en) * | 2013-07-30 | 2013-11-20 | 华南理工大学 | Method and equipment for manufacturing metal part with embedded FRID (Radio Frequency Identification) label with SLM (Selective Laser Melting) |
| CN103993313A (en) * | 2014-05-29 | 2014-08-20 | 西安交通大学 | Preparation process of densely-arranged columnar crystal ceramic coating based on laser remelting technology |
| CN104233168A (en) * | 2013-06-05 | 2014-12-24 | 通用电气公司 | Coating process and coated article |
| CN104742236A (en) * | 2013-12-27 | 2015-07-01 | 南京理工大学 | Powder laying device with induction heating system |
| CN103624259B (en) * | 2013-12-06 | 2015-11-04 | 沈阳航空航天大学 | Based on metal parts laser deposition restorative procedure and the device of the regulation and control of preset gradient temperature field |
| CN104016686B (en) * | 2014-03-07 | 2015-11-11 | 南京理工大学 | A kind of precinct laser melt-shaping equipment for stupalith |
| CN105154875A (en) * | 2015-09-14 | 2015-12-16 | 温州大学 | Laser-induction hybrid cladding processing equipment |
| CN108452991A (en) * | 2018-04-02 | 2018-08-28 | 南昌航空大学 | A kind of Multifunctional spraying integrated box |
| CN108747024A (en) * | 2018-05-17 | 2018-11-06 | 湖南科技大学 | A kind of sensing heating for thick plates and laser compound welding apparatus and method |
| CN110387542A (en) * | 2019-08-23 | 2019-10-29 | 兰州城市学院 | A kind of high abrasion metal-cermic coating Preparation equipment |
| CN111485235A (en) * | 2020-04-07 | 2020-08-04 | 江苏大学 | Method for promoting fine particles to realize intra-crystal distribution in laser shock melt injection process |
| CN114000143A (en) * | 2021-10-28 | 2022-02-01 | 华北电力大学 | Device for rapidly preparing metal ceramic coating through laser induction composite melt injection |
-
2010
- 2010-03-05 CN CN2010201244227U patent/CN201626977U/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191495A (en) * | 2010-03-05 | 2011-09-21 | 南昌航空大学 | Method for quickly preparing metal ceramic coating through laser induced composite fusioncast |
| CN103071783A (en) * | 2012-12-26 | 2013-05-01 | 南昌航空大学 | Device for preparing monotectic alloy through laser-strong magnetic field composite fusion casting |
| CN103071783B (en) * | 2012-12-26 | 2015-05-06 | 南昌航空大学 | Device for preparing monotectic alloy through laser-strong magnetic field composite fusion casting |
| CN103205750A (en) * | 2013-05-08 | 2013-07-17 | 南昌航空大学 | Method for quantitatively evaluating burning loss degree of Al in laser-induction composite fused NiCrAlY coating layer |
| CN103205750B (en) * | 2013-05-08 | 2014-11-19 | 南昌航空大学 | Method for quantitatively evaluating burning loss degree of Al in laser-induction composite fused NiCrAlY coating layer |
| CN104233168A (en) * | 2013-06-05 | 2014-12-24 | 通用电气公司 | Coating process and coated article |
| CN103400165B (en) * | 2013-07-30 | 2016-05-04 | 华南理工大学 | SLM manufactures the method and apparatus with embedded RFID label metal parts |
| CN103400165A (en) * | 2013-07-30 | 2013-11-20 | 华南理工大学 | Method and equipment for manufacturing metal part with embedded FRID (Radio Frequency Identification) label with SLM (Selective Laser Melting) |
| CN103624259B (en) * | 2013-12-06 | 2015-11-04 | 沈阳航空航天大学 | Based on metal parts laser deposition restorative procedure and the device of the regulation and control of preset gradient temperature field |
| CN104742236B (en) * | 2013-12-27 | 2017-04-19 | 南京理工大学 | Powder laying device with induction heating system |
| CN104742236A (en) * | 2013-12-27 | 2015-07-01 | 南京理工大学 | Powder laying device with induction heating system |
| CN104016686B (en) * | 2014-03-07 | 2015-11-11 | 南京理工大学 | A kind of precinct laser melt-shaping equipment for stupalith |
| CN103993313A (en) * | 2014-05-29 | 2014-08-20 | 西安交通大学 | Preparation process of densely-arranged columnar crystal ceramic coating based on laser remelting technology |
| CN105154875A (en) * | 2015-09-14 | 2015-12-16 | 温州大学 | Laser-induction hybrid cladding processing equipment |
| CN105154875B (en) * | 2015-09-14 | 2017-08-11 | 温州大学 | A kind of laser induction composite covers process equipment |
| CN108452991A (en) * | 2018-04-02 | 2018-08-28 | 南昌航空大学 | A kind of Multifunctional spraying integrated box |
| CN108452991B (en) * | 2018-04-02 | 2023-09-12 | 南昌航空大学 | Multifunctional spraying integrated box |
| CN108747024A (en) * | 2018-05-17 | 2018-11-06 | 湖南科技大学 | A kind of sensing heating for thick plates and laser compound welding apparatus and method |
| CN110387542A (en) * | 2019-08-23 | 2019-10-29 | 兰州城市学院 | A kind of high abrasion metal-cermic coating Preparation equipment |
| CN111485235A (en) * | 2020-04-07 | 2020-08-04 | 江苏大学 | Method for promoting fine particles to realize intra-crystal distribution in laser shock melt injection process |
| CN111485235B (en) * | 2020-04-07 | 2022-03-18 | 江苏大学 | Method for promoting fine particles to realize intra-crystal distribution in laser shock melt injection process |
| CN114000143A (en) * | 2021-10-28 | 2022-02-01 | 华北电力大学 | Device for rapidly preparing metal ceramic coating through laser induction composite melt injection |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20140305 |