CN202951588U - Spiral-flow type supersonic arc spray gun - Google Patents
Spiral-flow type supersonic arc spray gun Download PDFInfo
- Publication number
- CN202951588U CN202951588U CN 201220669548 CN201220669548U CN202951588U CN 202951588 U CN202951588 U CN 202951588U CN 201220669548 CN201220669548 CN 201220669548 CN 201220669548 U CN201220669548 U CN 201220669548U CN 202951588 U CN202951588 U CN 202951588U
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- spiral
- flow
- flow type
- rifle body
- type supersonic
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Abstract
The utility model discloses a spiral-flow type supersonic arc spray gun. The spiral-flow type supersonic arc spray gun comprises a gun body, and a conductive nozzle connected with a guide wire pipe, wherein airflow holes are uniformly distributed in an radial airflow channel arranged in the gun body, a spiral flow ring is connected with the gun body by a screw thread, spiral flow holes are uniformly distributed in the periphery of the spiral flow ring, an air accumulation hood is fixed with the spiral flow ring by a screw thread, a ceramic spray nozzle is compacted in the spiral flow ring by the air accumulation hood, and an inner chamber of the ceramic spray nozzle and an inner chamber of the air accumulation hood are combined to form a Laval spray nozzle. According to the technical scheme, the spiral-flow atomization and the supersonic atomization are combined, the effect and the stability of the jet flow atomization are enhanced by the spiral flow structure and the Laval spray nozzle, the secondary acceleration of the jet flow is realized, and the speed of the jet flow is further enhanced, so that the spray grain hole atomization effect is enhanced to achieve the nano-refining, the flying speed achieves the supersonic speed, and further a manufactured coating is obviously improved. The spiral-flow type supersonic arc spray gun is suitable for both coating devices of precise parts and large-area coating preparation.
Description
Technical field:
The utility model relates to a kind of spray gun, is specially adapted to welding field and uses.
Background technology:
" a kind of Supersonic High Speed Electric Arc Spraying device " patent No. 97208364.2 that State Patent Office is authorized, this device has the power supply of control, wire feeder, compressed air feedway and spray gun, the main body of spray gun is a Laval nozzle, have two on its cavity and can make to conduct electricity the passage that ozzle tiltedly penetrates, wire therefrom passes, as from the consumption electrode, pressure-air stream is sent into Laval nozzle by air intake.Its shortcoming is, facts have proved, existing supersonic electric arc spraying gun still exists that atomizing effect is bad, fluidic beam concentration is poor, spray stream is unstable, spraying particle velocity is low, easily cause particle to splash and the problem such as reunion, and comprise that coating porosity is high, rough surface, spraying particle are thick etc., and coating quality is not high, thereby limited its coating performance prepared, further improve.
Summary of the invention:
Task of the present utility model is the combination that proposes a kind of cyclone structure and Laval nozzle, has strengthened jet atomization effect and stability, makes the coating performance of preparation obtain a kind of spiral-flow type supersonic electric arc spraying gun obviously promoted.
Task of the present utility model completes like this, a kind of spiral-flow type supersonic electric arc spraying gun, it comprises on rifle body, wire leading pipe and is connected with ignition tip, it is characterized in that: on the inner radial air flow passage arranged of described rifle body, be evenly distributed with airflow hole, cyclone ring is connected with the rifle body by screw thread, be evenly distributed with whirl hole on described cyclone ring circumference, the gather qi together cover is fixed by screw thread and cyclone ring, ceramic nozzle is pressed in described cyclone ring by the gather qi together cover, described ceramic nozzle inner chamber and described gather qi together cover combination of lumens Laval nozzle.Described rifle body is connected by bolt with external connection body, between external connection body and rifle body, is provided with sealing ring.Described airflow hole quantity and described whirl hole quantity are more than at least 3.The inner airflow hole endoporus arranged of described whirl hole and described rifle body is tangent.
The utlity model has following effect: the technical program combines swirling flow atomizing and supersonic atomization, effect and the stability of jet atomization have been strengthened by cyclone structure and Laval nozzle, the secondary of having realized again jet accelerates, the speed of jet is further enhanced, thereby make spraying grain hole atomizing effect stronger, reached the nanometer refinement, flying speed has reached supersonic speed, the coating of preparation can obviously be promoted, the utility model can be suitable for the coating apparatus of precision component, is suitable for again large-area coating preparation.
The accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model; Fig. 2 is the cyclone structure schematic diagram.
Drawing explanation: 1, rifle body 2, fixed thread pipe 3, cyclone ring 4, ignition tip 5, ceramic nozzle 6, gather qi together cover 7, external connection body 8, spraying wire positive pole 9, spraying wire negative pole.
The specific embodiment:
Describe embodiment in detail in conjunction with above accompanying drawing, wire leading pipe 2 is assemblied in rifle body 1 as shown in Figure 1, be connected with ignition tip 4 on wire leading pipe, cyclone ring 3 is connected with the rifle body by screw thread, gather qi together cover 6 is fixed by screw thread and cyclone ring, ceramic nozzle 5 is pressed in cyclone ring by the gather qi together cover, ceramic nozzle inner chamber and gather qi together cover combination of lumens Laval nozzle structure, ceramic nozzle and front end are connected to respectively spraying wire anodal 8 and spraying wire negative pole 9, external connection body 7 is connected with the rifle body by bolt, with extraneous spray gun fixture, be connected, be provided with sealing ring between external connection body 7 and rifle body 1.
As shown in Figure 2: gas channel is to be provided with one section radially a-b gas channel by rifle body 1 inside, be evenly distributed with airflow hole on described radial air flow passage, the quantity of airflow hole can be 3-6, the eddy flow passage is positioned at cyclone ring inside by b-c, along the cyclone ring even circumferential, distribute, quantity can be 3-6 whirl hole, and the airflow hole endoporus on described whirl hole and rifle body is tangent, by above structure, forms the rotational flow gas passage.Supersonic airstream forms Laval nozzle by ceramic nozzle 5 inner chambers and gather qi together cover 6 inner chambers.
The course of work switches on power the spraying wire shown in Fig. 1 anodal 8 and spraying wire negative pole 9 respectively, set up electric arc in the inner chamber Lavalle structure that rear two spraying wires of switching on are comprised of ceramic nozzle 5 and gather qi together cover 6, and outwards sprayed by the air-flow through cyclone structure and the acceleration of Lavalle structure secondary, make that the spraying particle atomizing effect is good, the spraying particle flying speed reaches supersonic speed, be ejected into work substrate surface, form fine and close high-quality coating.Outstanding feature of the present invention is, gas passage is comprised of rifle body 1 and the inner special structures of cyclone ring 3, and as shown in Figure 2, the high-voltage high-speed airflow in rifle body 1 enters smoothly eddy flow passage D-shaped according to a, b, c and becomes the high-speed rotary air-flow.Wherein, a-b is that the radial air flow passage is positioned at rotary fluid structure rifle body 1, the gas channel of b-c is positioned at cyclone ring 3, the eddy flow passage is positioned at rotary fluid structure rifle body 1, this design, make air-flow strengthen stability and the convergence of air-flow after the special gas cyclone passage formed by rifle body 1 and cyclone ring 3, then through by ceramic nozzle 5 and gather qi together cover 6, forming supersonic airstream, and make the particle of fusing realize powerful atomization, boundling and supersonic flight, thereby obtained the high-quality coating of compact nanometer.
Claims (4)
1. a spiral-flow type supersonic electric arc spraying gun, it comprises on rifle body, wire leading pipe and is connected with ignition tip, it is characterized in that: on the inner radial air flow passage arranged of described rifle body, be evenly distributed with airflow hole, cyclone ring is connected with the rifle body by screw thread, be evenly distributed with whirl hole on described cyclone ring circumference, the gather qi together cover is fixed by screw thread and cyclone ring, and ceramic nozzle is pressed in described cyclone ring by the gather qi together cover, described ceramic nozzle inner chamber and described gather qi together cover combination of lumens Laval nozzle.
2. a kind of spiral-flow type supersonic electric arc spraying gun according to claim 1, it is characterized in that: described rifle body is connected by bolt with external connection body, between external connection body and rifle body, is provided with sealing ring.
3. a kind of spiral-flow type supersonic electric arc spraying gun according to claim 1, it is characterized in that: described airflow hole quantity and described whirl hole quantity are more than at least 3.
4. a kind of spiral-flow type supersonic electric arc spraying gun according to claim 3 is characterized in that: the inner airflow hole endoporus arranged of described whirl hole and described rifle body is tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669548 CN202951588U (en) | 2012-12-07 | 2012-12-07 | Spiral-flow type supersonic arc spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220669548 CN202951588U (en) | 2012-12-07 | 2012-12-07 | Spiral-flow type supersonic arc spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202951588U true CN202951588U (en) | 2013-05-29 |
Family
ID=48457184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220669548 Expired - Fee Related CN202951588U (en) | 2012-12-07 | 2012-12-07 | Spiral-flow type supersonic arc spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202951588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974486A (en) * | 2012-12-07 | 2013-03-20 | 新乡市布瑞林特机械再制造有限责任公司 | Spiral-flow type supersonic speed electric arc spraying gun |
-
2012
- 2012-12-07 CN CN 201220669548 patent/CN202951588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974486A (en) * | 2012-12-07 | 2013-03-20 | 新乡市布瑞林特机械再制造有限责任公司 | Spiral-flow type supersonic speed electric arc spraying gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20131207 |