CN104233173A - Plasma spraying execution system - Google Patents
Plasma spraying execution system Download PDFInfo
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- CN104233173A CN104233173A CN201410465099.2A CN201410465099A CN104233173A CN 104233173 A CN104233173 A CN 104233173A CN 201410465099 A CN201410465099 A CN 201410465099A CN 104233173 A CN104233173 A CN 104233173A
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Abstract
The invention relates to a plasma spraying execution system. The plasma spraying execution system comprises an ignition fuel gas channel, a primary gas channel, a powder feeding channel, an air channel and a spraying gun, wherein the ignition fuel gas channel is jointed with the primary gas channel and then accessed onto the spraying gun; the primary gas channel is connected to the powder feeding channel by virtue of a pipeline and then accessed and jointed onto the spraying gun; and the air channel is accessed onto the spraying gun. The plasma spraying execution system has the advantages of reasonable structural design, convenience in operation, high operation control sensitivity, and the like, can be used for realizing flexible and quick spraying and processing by utilizing automatic control, is high in device safety performance, capable of changing the material supply flow rate according to the actual processing requirements, and suitable for different processing conditions.
Description
Technical field
The present invention relates to plasma spraying processing technique field, specifically a kind of plasma spraying executive system.
Background technology
Plasma spraying is the technology of a kind of material surface strengthening and surface modification, and matrix surface can be made to have wear-resisting, anti-corrosion, high temperature oxidation resisting, electrical isolation, heat insulation, radioprotective, the performance such as anti-attrition and sealing.There is following characteristic: 1. ultrahigh-temperature characteristic, be convenient to the spraying carrying out materials with high melting point; 2. the speed of jet particle is high, and coating is fine and close, and cohesive strength is high; 3. owing to using rare gas element as working gas, so spray material is not oxidizable.And unreasonable due to circuit design of traditional plasma spray system, cause that to control sensitivity poor, adjustability is poor, manipulates convenient, fast not, and safety performance is relatively low.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of reasonable in design, simple operation, manipulate highly sensitive, the control realization of automatization device that is sensitive, spray process efficiently can be utilized, i.e. a kind of plasma spraying executive system.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of plasma spraying executive system, comprise igniting blast tube, main gas passage, powder feeding passage, air passageways and spray gun, be linked on spray gun after described igniting blast tube and main gas passage converge, described main gas passage and powder feeding passage are connected by pipeline and converge and be linked on spray gun, and described air passageways is linked on spray gun.The gas passed in igniting blast tube is hydrogen, provides combustion gas, automatically close after spray gun has been lighted a fire when spray gun is lighted a fire; What pass in main gas passage is mixed gas, i.e. argon gas and nitrogen, can prevent the oxidation of spray material like this; After igniting blast tube is lighted a fire to spray gun conveying hydrogen, igniting blast tube is closed, main gas passage feeds gas, powder feeding passage main gas passage auxiliary under feed the powders such as pottery, alloy, metal to spray gun, air passageways is air-supplied in spray gun simultaneously, to guarantee that the abundant of powder is heated, be sprayed on workpiece surface eventually through spray gun, reach the object changing workpiece performance.
Described igniting blast tube comprises an air inlet port, a magnetic valve, No. two magnetic valves, a check valve, No. two check valves, throttling valve, a needle-valve and a under meter, a described magnetic valve, a check valve is connected into the first branch road by pipeline, described No. two magnetic valves, No. two check valves, throttling valve is connected into the second branch road by pipeline, described first branch road is connected by pipeline with an air inlet port with the one end after the second branch circuit parallel connection, described first branch road is connected by pipeline with a needle-valve with the other end after the second branch circuit parallel connection, the input terminus of a described under meter is connected by pipeline with a needle-valve, the output terminal of a described under meter is in parallel with main gas passage to be linked on spray gun.Due to the high risk of hydrogen, therefore adopt a check valve, No. two check valves prevent the backflow of hydrogen, principle of work is: hydrogen injects from an air inlet port, utilize a magnetic valve, the break-make of No. two magnetic valves flows through pipeline with what switch hydrogen, i.e. the first branch road or the second branch road, to change the flow of hydrogen, first branch road, the combination of a needle-valve and the second branch road, the combination of a needle-valve is compared, the flow range of the hydrogen of final output is different, like this can according to the igniting demand of reality by a magnetic valve, the break-make of No. two magnetic valves switches, manipulate convenient and swift, the work output of hydrogen is presented on a under meter.
Described main gas passage comprises No. two air inlet ports, No. three air inlet ports, a pressure controller, No. three magnetic valves, No. two pressure controllers, No. four magnetic valves, No. five magnetic valves, No. two needle-valves, No. two under meters and No. three pressure controllers, described No. two air inlet ports, No. three magnetic valves are connected into the 3rd branch road by pipeline, and a described pressure controller is accessed at No. two air inlet ports by pipeline, between No. three magnetic valves, described No. three air inlet ports, No. four magnetic valves are connected into the 4th branch road by pipeline, and described No. two pressure controllers are accessed at No. three air inlet ports by pipeline, between No. four magnetic valves, described 3rd branch road, 4th branch road by being linked on No. five magnetic valves after pipeline parallel connection, described No. two needle-valves, No. two under meters connected by pipeline with No. three pressure controllers after one end be connected with No. five magnetic valves, described No. two needle-valves, No. two under meters and No. three pressure controllers connected by pipeline after the other end in parallelly with the output terminal of a under meter be linked on spray gun, described powder feeding passage is connected with No. five magnetic valves.What No. two inlet end confessions entered is argon gas, what No. three inlet end confessions entered is nitrogen, needing by a pressure controller for fashionable, No. two pressure controllers detect argon gas, the pressure of nitrogen, then, at No. three magnetic valves, after No. four magnetic valves are opened, argon gas, nitrogen is mixed to form main gas, import to No. five magnetic valve places, main gas is on the one hand by No. two needle-valves, No. two under meters and No. three pressure controllers are delivered on spray gun, and the supply flow rate of main gas is changed by No. two needle-valves, be passed in powder feeding passage on the other hand, and powder is delivered in spray gun, ready for spraying.
Described powder feeding passage comprises reducing valve and powder feeding machine, described reducing valve connected by pipeline with powder feeding machine after one end be connected by pipeline with No. five magnetic valves, described reducing valve connected by pipeline with powder feeding machine after the other end be connected by pipeline with spray gun.Enter into after in powder feeding passage at main gas, powder is transported in spray gun, to meet the materials demand of spray process.
Described air passageways comprises No. four air inlet ports, air outlet, No. six magnetic valves, and described No. four air inlet ports, air outlet, No. six magnetic valves are linked on spray gun after being connected by pipeline successively.Air injects from No. four air inlet ports, successively through No. six magnetic valves, an air outlet and enter on spray gun, with the combustion needs of satisfied reality.
The invention has the beneficial effects as follows: the present invention has reasonable in design, simple operation and manipulation sensitivity advantages of higher, can utilize that the control realization of automatization is sensitive, spray process efficiently, equipment safety performance is higher, the flow of material supply can be changed according to the process requirements of reality, be suitable for different processing conditionss.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is further illustrated.
Fig. 1 is fundamental diagram of the present invention.
Embodiment
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below the present invention being set forth further.
As shown in Figure 1, a kind of plasma spraying executive system, comprise igniting blast tube, main gas passage, powder feeding passage, air passageways and spray gun 24, be linked on spray gun 24 after described igniting blast tube and main gas passage converge, described main gas passage and powder feeding passage are connected by pipeline and converge and be linked on spray gun 24, and described air passageways is linked on spray gun 24.The gas passed in igniting blast tube is hydrogen, provides combustion gas, automatically close after spray gun 24 has been lighted a fire when spray gun 24 is lighted a fire; What pass in main gas passage is mixed gas, i.e. argon gas and nitrogen, can prevent the oxidation of spray material like this; After igniting blast tube carries hydrogen to light a fire to spray gun 24, igniting blast tube is closed, main gas passage feeds gas, powder feeding passage main gas passage auxiliary under feed the powders such as pottery, alloy, metal to spray gun 24, air passageways is air-supplied in spray gun 24 simultaneously, to guarantee that the abundant of powder is heated, be sprayed on workpiece surface eventually through spray gun 24, reach the object changing workpiece performance.
Described igniting blast tube comprises an air inlet port one, a magnetic valve 7, No. two magnetic valves 8, a check valve 9, No. two check valves 10, throttling valve 11, a needle-valve 12 and a under meter 13, a described magnetic valve 7, a check valve 9 is connected into the first branch road by pipeline, described No. two magnetic valves 8, No. two check valves 10, throttling valve 11 is connected into the second branch road by pipeline, described first branch road is connected by pipeline with an air inlet port one with the one end after the second branch circuit parallel connection, described first branch road is connected by pipeline with a needle-valve 12 with the other end after the second branch circuit parallel connection, the input terminus of a described under meter 13 is connected by pipeline with a needle-valve 12, the output terminal of a described under meter 13 is in parallel with main gas passage to be linked on spray gun 24.Due to the high risk of hydrogen, therefore adopt a check valve 9, No. two check valves 10 prevent the backflow of hydrogen, principle of work is: hydrogen injects from an air inlet port one, utilize a magnetic valve 7, the break-make of No. two magnetic valves 8 flows through pipeline with what switch hydrogen, i.e. the first branch road or the second branch road, to change the flow of hydrogen, first branch road, the combination of a needle-valve 12 and the second branch road, the combination of a needle-valve 12 is compared, the flow range of the hydrogen of final output is different, like this can according to the igniting demand of reality by a magnetic valve 7, the break-make of No. two magnetic valves 8 switches, manipulate convenient and swift, the work output of hydrogen is presented on a under meter 13.
Described main gas passage comprises No. two air inlet ports 2, No. three air inlet ports 3, a pressure controller 14, No. three magnetic valves 15, No. two pressure controllers 16, No. four magnetic valves 17, No. five magnetic valves 18, No. two needle-valves 19, No. two under meters 20 and No. three pressure controllers 21, described No. two air inlet ports 2, No. three magnetic valves 15 are connected into the 3rd branch road by pipeline, and a described pressure controller 14 is accessed at No. two air inlet ports 2 by pipeline, between No. three magnetic valves 15, described No. three air inlet ports 3, No. four magnetic valves 17 are connected into the 4th branch road by pipeline, and described No. two pressure controllers 16 are accessed at No. three air inlet ports 3 by pipeline, between No. four magnetic valves 17, described 3rd branch road, 4th branch road by being linked on No. five magnetic valves 18 after pipeline parallel connection, described No. two needle-valves 19, No. two under meters 20 connected by pipeline with No. three pressure controllers 21 after one end be connected with No. five magnetic valves 18, described No. two needle-valves 19, No. two under meters 20 and No. three pressure controllers 21 connected by pipeline after the other end in parallelly with the output terminal of a under meter 13 be linked on spray gun 24, described powder feeding passage is connected with No. five magnetic valves 18.What No. two air inlet ports 2 fed is argon gas, what No. three air inlet ports 3 fed is nitrogen, needing by a pressure controller 14 for fashionable, No. two pressure controllers 16 detect argon gas, the pressure of nitrogen, then, at No. three magnetic valves 15, after No. four magnetic valves 17 are opened, argon gas, nitrogen is mixed to form main gas, import to No. five magnetic valve 18 places, main gas is on the one hand by No. two needle-valves 19, No. two under meters 20 and No. three pressure controllers 21 are delivered on spray gun 24, and the supply flow rate of main gas is changed by No. two needle-valves 19, be passed in powder feeding passage on the other hand, and powder is delivered in spray gun 24, ready for spraying.
Described powder feeding passage comprises reducing valve 22 and powder feeding machine 4, described reducing valve 22 connected by pipeline with powder feeding machine 4 after one end be connected by pipeline with No. five magnetic valves 18, described reducing valve 22 connected by pipeline with powder feeding machine 4 after the other end be connected by pipeline with spray gun 24.Enter into after in powder feeding passage at main gas, powder is transported in spray gun 24, to meet the materials demand of spray process.
Described air passageways comprises No. four air inlet ports 5, air outlet 6, No. six magnetic valves 23, and described No. four air inlet ports 5, air outlet 6, No. six magnetic valves 23 are linked on spray gun 24 after being connected by pipeline successively.Air injects from No. four air inlet ports 5, enters on spray gun 24, with the combustion needs of satisfied reality successively through No. six magnetic valves 23, air outlet 6.
During work, gas in corresponding gas tank is linked into an air inlet port one, No. two air inlet ports 2, No. three air inlet ports 3, on No. four air inlet ports 5, according to actual process requirements, optionally control a magnetic valve 7, the break-make of No. two magnetic valves 8, to change the different flow of hydrogen conveying, ignite at spray gun 24 place Hydrogen Ignition, to be fired complete after, close a corresponding magnetic valve 7, No. two magnetic valves 8, instantaneous unlatching No. three magnetic valves 15, No. four magnetic valves 17, No. five magnetic valves 18, argon gas and nitrogen are mixed to form main gas, on the one hand by No. two needle-valves 19, No. two under meters 20 and No. three pressure controllers 21 are injected in spray gun 24, be linked on powder feeding passage by pipeline on the other hand, thus be injected in spray gun 24 together with powder, simultaneously, air is by No. six magnetic valves 23, an air outlet 6 and enter on spray gun 24, meet the condition of plasma spraying processing like this, powder can be sprayed on the surface of workpiece to be repaired, to improve the wear resisting property of workpiece and to improve intensity.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification sheets; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in claimed this practicality invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a plasma spraying executive system, comprise igniting blast tube, main gas passage, powder feeding passage, air passageways and spray gun (24), it is characterized in that: be linked into after described igniting blast tube and main gas passage converge on spray gun (24), described main gas passage and powder feeding passage are connected by pipeline and converge and be linked on spray gun (24), and described air passageways is linked on spray gun (24);
Described igniting blast tube comprises an air inlet port (1), a magnetic valve (7), No. two magnetic valves (8), a check valve (9), No. two check valves (10), throttling valve (11), a needle-valve (12) and a under meter (13), a described magnetic valve (7), a check valve (9) is connected into the first branch road by pipeline, described No. two magnetic valves (8), No. two check valves (10), throttling valve (11) is connected into the second branch road by pipeline, described first branch road is connected by pipeline with an air inlet port (1) with the one end after the second branch circuit parallel connection, described first branch road is connected by pipeline with a needle-valve (12) with the other end after the second branch circuit parallel connection, the input terminus of a described under meter (13) is connected by pipeline with a needle-valve (12), the output terminal of a described under meter (13) is in parallel with main gas passage to be linked on spray gun (24),
Described main gas passage comprises No. two air inlet ports (2), No. three air inlet ports (3), a pressure controller (14), No. three magnetic valves (15), No. two pressure controllers (16), No. four magnetic valves (17), No. five magnetic valves (18), No. two needle-valves (19), No. two under meters (20) and No. three pressure controllers (21), described No. two air inlet ports (2), No. three magnetic valves (15) are connected into the 3rd branch road by pipeline, and a described pressure controller (14) is accessed No. two air inlet ports (2) by pipeline, between No. three magnetic valves (15), described No. three air inlet ports (3), No. four magnetic valves (17) are connected into the 4th branch road by pipeline, and described No. two pressure controllers (16) are accessed No. three air inlet ports (3) by pipeline, between No. four magnetic valves (17), described 3rd branch road, 4th branch road by being linked on No. five magnetic valves (18) after pipeline parallel connection, described No. two needle-valves (19), No. two under meters (20) connected by pipeline with No. three pressure controllers (21) after one end be connected with No. five magnetic valves (18), described No. two needle-valves (19), No. two under meters (20) and No. three pressure controllers (21) connected by pipeline after the other end in parallelly with the output terminal of a under meter (13) be linked on spray gun (24), described powder feeding passage is connected with No. five magnetic valves (18).
2. a kind of plasma spraying executive system according to claim 1, it is characterized in that: described powder feeding passage comprises reducing valve (22) and powder feeding machine (4), described reducing valve (22) connected by pipeline with powder feeding machine (4) after one end be connected by pipeline with No. five magnetic valves (18), described reducing valve (22) connected by pipeline with powder feeding machine (4) after the other end be connected by pipeline with spray gun (24).
3. a kind of plasma spraying executive system according to claim 1, it is characterized in that: described air passageways comprises No. four air inlet ports (5), an air outlet (6), No. six magnetic valves (23), described No. four air inlet ports (5), air outlet (6), No. six magnetic valves (23) are linked on spray gun (24) after being connected by pipeline successively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410465099.2A CN104233173B (en) | 2014-09-12 | 2014-09-12 | A kind of plasma spraying performs system |
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| CN201410465099.2A CN104233173B (en) | 2014-09-12 | 2014-09-12 | A kind of plasma spraying performs system |
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| CN104233173A true CN104233173A (en) | 2014-12-24 |
| CN104233173B CN104233173B (en) | 2016-09-21 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19812441A1 (en) * | 1998-03-21 | 1999-09-23 | Snmc E & C Tero Lab | Method and apparatus for raising the energy level of particles of a powder spray material, and applications of the method |
| CN101956154A (en) * | 2010-09-19 | 2011-01-26 | 大连海事大学 | Ultralow-voltage plasma spraying equipment |
| US20130334176A1 (en) * | 2009-11-04 | 2013-12-19 | Mario Felkel | Plasma spray nozzle with internal injection |
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2014
- 2014-09-12 CN CN201410465099.2A patent/CN104233173B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19812441A1 (en) * | 1998-03-21 | 1999-09-23 | Snmc E & C Tero Lab | Method and apparatus for raising the energy level of particles of a powder spray material, and applications of the method |
| US20130334176A1 (en) * | 2009-11-04 | 2013-12-19 | Mario Felkel | Plasma spray nozzle with internal injection |
| CN101956154A (en) * | 2010-09-19 | 2011-01-26 | 大连海事大学 | Ultralow-voltage plasma spraying equipment |
Non-Patent Citations (1)
| Title |
|---|
| 杜学芳: ""超音速火焰喷涂控制系统的设计"", 《中国优秀硕士学位论文全文数据库》, no. 12, 31 December 2009 (2009-12-31), pages 6 - 12 * |
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| CN104233173B (en) | 2016-09-21 |
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