CN203960316U - A kind of injection and spraying method are prepared composite material device - Google Patents
A kind of injection and spraying method are prepared composite material device Download PDFInfo
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- CN203960316U CN203960316U CN201420397534.8U CN201420397534U CN203960316U CN 203960316 U CN203960316 U CN 203960316U CN 201420397534 U CN201420397534 U CN 201420397534U CN 203960316 U CN203960316 U CN 203960316U
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Abstract
The utility model discloses a kind of injection and spraying method and prepare the device of composite material, comprise deposition substrate (1), in the top of deposition substrate (1), be provided with metal melting equipment (2) and spraying equipment (3), in the bottom of metal melting equipment (2), catheter (4) is housed, at catheter (4), is peripherally equipped with atomizing nozzle (5); The afterbody of spraying equipment (3) is provided with two independently compressed air inlet ports, and one is connected with gas holder (7) through powder feeder (6) by pipeline, and another is connected with gas holder (7) through gas control valve (8) by pipeline; Deposition substrate (1), atomizing nozzle (5), powder feeder (6), gas holder (7) and gas control valve (8) are connected with two-position controller (9) respectively.The utility model is simple in structure, easy and simple to handle, and cost is low, is applicable to extensive output application and mass production, has good popularizing application prospect.
Description
Technical field
The utility model relates to a kind of preparation facilities of metal composite, particularly a kind of device that adopts injection and spraying method to prepare composite material.
Background technology
Matrix material is manually by special method, to be composited by body material and matrix material, it has given full play to material physical and chemical performance separately, form the type material of excellent combination property, be the new subject that current Material Field is with fastest developing speed, application prospect is the widest, all the development of matrix material classified as to emphasis planning all over the world.People are in to the research process of matrix material, and the key that has realized that matrix material is that problem is combined at the interface of body material between plied timber.Reach good, the multiple layer firmly technical requirements of bonding strength, except necessary aximal deformation value, also must have enough compound interfaces.The production method of original complex plate strip has following several types substantially: 1, welding rolling: each of the stainless steel plate that contact surface is cleaned out and mild steel plate are combined, again the seam of surrounding contact position, then through process furnace, heat the method for rolling again, or by stainless steel electrode, welding wire built-up welding certain thickness for mild steel plate, then rolling after process furnace heating.2, explosive welding connection: the contact surface of two blocks of different metal plates is cleaned out and is combined, be placed on after heating in special device, adopt blast technique by contact surface seam, in rolling after process furnace heating.3, centrifugal casting method: low-carbon (LC) molten steel is first injected to centrifugal casting machine, when it is cooled to admittedly molten state, again stainless steel water is injected to centrifugal casting circle inner ring, while being frozen into ring-type composition board made-up belt completely, take out, after straightener aligning, send into process furnace and heat rolling again.
Cold air dynamic spraying technology is to take high pressure compressed gas as power, drive minute metallic particle high-speed impact substrate material surface, when the speed of spraying particle surpasses after certain speed, sprayed particle occurs bonding at material surface generation intense plastic strain, at substrate material surface, form coating.In cold air dynamic spraying technology, the temperature of gas is generally less than 850K, and well below the fusing point of spray material, sprayed particle is bonding in solid-state lower generation.Therefore, cold air dynamic spraying technology has other hot-spraying techniqueies and does not possess distinct advantages 1, for example, little to the heat input of substrate, on the structure of substrate without impact; Spraying particle is with solid-state bonding, and it is stable that structure keeps, and is suitable for preparing nanometer and non-crystal structure, intermetallic compound equitemperature sensitive material and phase transformation sensitive material coating; In spraying process, non-oxidation occurs, and is suitable for the spraying of oxysensible reducing metal.But, just because of cold air power spraying and coating, rely on the Particular craft feature of speed completely, also cause cold air dynamic spraying technology self to have a very large shortcoming, be that the bonding needed critical velocity of spraying particle is very high, conventionally more than reaching 600m/s, due to the cooling effect of high velocity air, also make particle and substrate bonding carry out at lower temperature in addition, increased bonding difficulty.Especially when spraying the material that two kinds of performance differences are large or fusing point is high, bonding difficulty is more remarkable.Therefore need the bonding problem that will solve in cold air power spraying and coating technique badly, usual method is that the particle of driving gas or spraying is heated at present, thereby the speed that improves on the one hand air-flow improves the speed of particle to surpass critical velocity, the temperature that improves on the other hand particle increases the deformability of particle, and for example patent US2006027687 adopts microwave heating spraying particle.But the temperature that improves high pressure compressed gas has all proposed very high technical requirements to equipment design and material, and security is difficult to guarantee.And sticky larynx phenomenon easily occurs the temperature that improves particle, easily cause that the variations such as crystal grain length, phase transformation occur spraying particle tissue, affect the performance of coating, and radiation heating efficiency are low, and can be lowered the temperature rapidly by the cooling effect of high velocity air simultaneously; Microwave heating meeting is reflected by metallics, affects actual heats.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of injection and spraying method to prepare the device of composite material, improves intensity and the bonding efficiency of composition metal face, thereby overcomes above-mentioned the deficiencies in the prior art.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
Injection and spraying method are prepared a device for composite material, comprise deposition substrate, are respectively equipped with metal melting equipment and spraying equipment above deposition substrate, in the bottom of metal melting equipment, catheter are housed, at the atomizing nozzle that is peripherally equipped with of catheter; Spraying equipment is positioned at a side of metal melting equipment, and the afterbody of spraying equipment is provided with two independently compressed air inlet ports, and one is connected with gas holder through powder feeder by pipeline, and another is connected with gas holder through gas control valve by pipeline; Deposition substrate, atomizing nozzle, powder feeder, gas holder and gas control valve are connected with two-position controller respectively.
Above-mentioned injection and spraying method are prepared in the device of composite material, and described metal melting equipment is crucible, and spraying equipment is spray gun, and the nozzle of this spray gun is superonic flow nozzzle.
The beneficial effects of the utility model: compared with prior art, technological merit of the present utility model is:
(1), metal atomization jet apparatus and cold air driven spray painter have been arranged simultaneously, deposition substrate is after metal injection deposition, because metal deposition layer has higher temperature, the hardness of metal deposition layer reduces greatly, when composite metal particles high speed impact is on metal deposition layer time, there is strong embedding phenomenon, composite metal particles embeds metal deposition layer, form good metallurgical bonding layer, greatly improved the intensity at composite bed interface and the bonding efficiency of composition metal.
(2) deposition substrate is after metal injection deposition, the density of settled layer metal is lower, by follow-up high pressure gas, carry the high-speed impact of metal powder granulates, the density of settled layer metal interface is significantly improved, thereby greatly improved the performance of settled layer metal.
(3) cold air dynamic spraying technology in the past need to spray the pressure of gas and the temperature of deposition substrate reaches the object that strengthens bond effect and intensity by increase, the utility model directly adds cold air power spraying and coating after by metal injection, can utilize the temperature of metal injection, without increasing the spraying pressure of gas and the temperature of deposition substrate, not only saved the energy, reduced cost, and reduced the technical requirements to equipment design and material, security is guaranteed.
(4) the loose and bubble that the utility model formed in metal jet atomization process in early stage, the high-speed impact that carries metal powder granulates by high pressure gas in follow-up cold air power spraying and coating process has been realized and has been filled and improve, and has improved to a certain extent the quality of metal refining.
The utility model is simple in structure, easy and simple to handle, and cost is low, can carry out extensive output application and mass production, has good popularizing application prospect.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present utility model.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Embodiment
As shown in Figure 1, device of the present utility model comprises the deposition substrate 1 of using for receiving jet atomization metal, above deposition substrate 1, be respectively equipped with metal melting equipment 2 and spraying equipment 3, metal melting equipment 2 in this example adopts crucible, spraying equipment 3 adopts spray gun, and the designs of nozzles of spray gun is supersonic nozzle.In the bottom of crucible, catheter 4 is housed, at the some atomizing nozzles 5 of being peripherally equipped with of catheter 4; Spray gun is positioned at a side of crucible, and the afterbody of spray gun is provided with two independently compressed air inlet ports, and one is connected with gas holder 7 through powder feeder 6 by pipeline, and another is connected with gas holder 7 through gas control valve 8 by pipeline; Deposition substrate 1, atomizing nozzle 5, powder feeder 6, gas holder 7 and gas control valve 8 are connected with two-position controller 9 respectively, by 9 pairs of deposition substrate 1 of two-position controller, atomizing nozzle 5, powder feeder 6, gas holder 7 and gas control valve 8 etc., automatically control.
Principle of work: metal melting in the crucible as metal melting equipment 2 forms after molten metal 10, by catheter 4, flow out downwards, in the process flowing out, be subject to being arranged on the jet atomization of the atomizing nozzle 5 of catheter 4 peripheries, form tiny metal atomization drop 11, metal atomization drop 11 is injected in deposition substrate 1 with higher speed, effect due to high-speed impact and rapid cooling, there is moment and solidify in molten metal 10, form metal deposition layer 12, along with deposition substrate 1 is ceaselessly moved, metal deposition layer 12 is constantly deposited in deposition substrate 1.Gas holder 7 provides the carrier gas of high drive gas and composite metal powder particle, according to different situations, the pressure-controlling of high drive gas is at 1.5-5MPa, in powder feeder 6, be equipped with and need compound metal powder granulates, its median size is controlled at 20-80 μ m, carrier gas is carried after powder feeder 6 needs compound metal powder granulates to enter in the spray gun as spraying equipment 3, driving gas enters equally in the spray gun as spraying equipment 3 after gas control valve 8, in spray gun, driving gas interacts with needing compound metal powder granulates 13, more than the speed of the compound metal powder granulates of need is accelerated to supersonic speed, by the superonic flow nozzzle ejection supersonic speed gas-solid two-phase of spray gun, act on and on metal deposition layer 12, form composite tie layer 14.
Embodiment 1.Above deposition substrate, arrange crucible and spray gun.Originally, deposition substrate is moved from right to left with the speed of 10mm/s, and jet atomization metal is straight carbon steel, and metal atomization temperature is 1600 ℃, and the metal deposition layer thickness that atomised jet forms is 12mm, metal atomization pressure 1.5MPa.After metal deposition layer forms, deposition substrate moves to spray gun below, composition metal is soft steel, the median size of composite metal particles is 50 μ m, before spraying, the temperature of metal deposition layer is 900 ℃ of left and right, the pressure-controlling of spray gun inner high voltage pressurized gas is at 2.0MPa, and the thickness of composite tie layer is 3mm.
Embodiment 2.Above deposition substrate, arrange crucible and spray gun originally, deposition substrate is moved from right to left with the speed of 12mm/s, and jet atomization metal is straight carbon steel, and metal atomization temperature is 1590 ℃, the metal deposition layer thickness that atomised jet forms is 10mm, and metal atomization pressure is 1.2MPa.After metal deposition layer forms, deposition substrate moves to spray gun below, composition metal is soft steel, the median size of composite metal particles is 60 μ m, before spraying, the temperature of metal deposition layer is 1000 ℃ of left and right, the pressure-controlling of spray gun inner high voltage pressurized gas is at 1.8MPa, composite tie layer thickness be 2mm.
Embodiment 3.Above deposition substrate, arrange crucible and spray gun.Originally, deposition substrate is moved from right to left with the speed of 13mm/s, and jet atomization metal is straight carbon steel, and metal atomization temperature is 1620 ℃, and the metal deposition layer thickness that atomised jet forms is 15mm, and metal atomization pressure is 1.0MPa.After metal deposition layer forms, deposition substrate moves to spray gun below, composition metal is soft steel, the median size of composite metal particles is 70 μ m, before spraying, the metal temperature of metal deposition layer is 950 ℃ of left and right, the pressure-controlling of spray gun inner high voltage pressurized gas is at 1.5MPa, and the thickness of composite tie layer is 1.5mm.
Embodiment of the present utility model is not limited to above-described embodiment, within the various variations of making under the prerequisite that does not depart from the utility model aim all belong to protection domain of the present utility model.
Claims (2)
1. one kind is sprayed and spraying method is prepared the device of composite material, comprise deposition substrate (1), it is characterized in that: in the top of deposition substrate (1), be provided with metal melting equipment (2) and spraying equipment (3), in the bottom of metal melting equipment (2), catheter (4) is housed, at catheter (4), is peripherally equipped with atomizing nozzle (5); Spraying equipment (3) is positioned at a side of metal melting equipment (2), the afterbody of spraying equipment (3) is provided with two independently compressed air inlet ports, one is connected with gas holder (7) through powder feeder (6) by pipeline, and another is connected with gas holder (7) through gas control valve (8) by pipeline; Deposition substrate (1), atomizing nozzle (5), powder feeder (6), gas holder (7) and gas control valve (8) are connected with two-position controller (9) respectively.
2. injection according to claim 1 and spraying method are prepared the device of composite material, it is characterized in that: described metal melting equipment (2) is crucible, and spraying equipment (3) is spray gun, and the nozzle of spray gun is superonic flow nozzzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397534.8U CN203960316U (en) | 2014-07-12 | 2014-07-12 | A kind of injection and spraying method are prepared composite material device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420397534.8U CN203960316U (en) | 2014-07-12 | 2014-07-12 | A kind of injection and spraying method are prepared composite material device |
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| CN203960316U true CN203960316U (en) | 2014-11-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087891A (en) * | 2014-07-12 | 2014-10-08 | 卢玉锋 | Method and device for preparing composite metal material by virtue of injection and spray-coating process |
| CN104878342A (en) * | 2015-05-18 | 2015-09-02 | 广东省工业技术研究院(广州有色金属研究院) | Method and device for preparing tungsten powder reinforced aluminum matrix composite |
| CN108754389A (en) * | 2018-05-25 | 2018-11-06 | 任三兵 | A kind of aeroponics and spray coating method prepare the method and device of metallic composite |
| CN109972071A (en) * | 2019-05-15 | 2019-07-05 | 宁波大智机械科技股份有限公司 | A kind of spray equipment and application have the thermal jet Zn system of the spraying zinc device |
-
2014
- 2014-07-12 CN CN201420397534.8U patent/CN203960316U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087891A (en) * | 2014-07-12 | 2014-10-08 | 卢玉锋 | Method and device for preparing composite metal material by virtue of injection and spray-coating process |
| CN104878342A (en) * | 2015-05-18 | 2015-09-02 | 广东省工业技术研究院(广州有色金属研究院) | Method and device for preparing tungsten powder reinforced aluminum matrix composite |
| CN108754389A (en) * | 2018-05-25 | 2018-11-06 | 任三兵 | A kind of aeroponics and spray coating method prepare the method and device of metallic composite |
| CN109972071A (en) * | 2019-05-15 | 2019-07-05 | 宁波大智机械科技股份有限公司 | A kind of spray equipment and application have the thermal jet Zn system of the spraying zinc device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20180712 |