CN2369773Y - High speed electric arc spray gun - Google Patents
High speed electric arc spray gun Download PDFInfo
- Publication number
- CN2369773Y CN2369773Y CN 99207827 CN99207827U CN2369773Y CN 2369773 Y CN2369773 Y CN 2369773Y CN 99207827 CN99207827 CN 99207827 CN 99207827 U CN99207827 U CN 99207827U CN 2369773 Y CN2369773 Y CN 2369773Y
- Authority
- CN
- China
- Prior art keywords
- high velocity
- arc spraying
- compressed air
- air joint
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a high speed electric arc spray gun to solve the problem of the low flying speed of the atomization particles of the existing spray gun. The high speed electric arc spray gun consists of a handle and an aft closure connected with the gun body. The compressed air joint penetrating through the aft closure is connected with the spout in the cavity of the gun body. The air spout is positioned at the opposite side of the compressed air joint and connected with the gun body. Two conductive contacts penetrating through the aft closure respectively are connected with two current contact nozzles insulated to be fixed in the cavity of the gun body. The utility model can be used widely in various locations for spray painting.
Description
The utility model relates to a kind of high velocity arc spraying gun.
Arc spray gun plays crucial effects to the quality of spraying in electric arc spraying, in the technology that the common arc gum of known usefulness sprays, (atomization gas flow velocity degree is 150-250m/s in distance spout port 80mm scope because the particle flying speed after the little molten drop of metal of arc-melting is atomized is lower, the flying speed of particle is 50-180m/s in working range), the atomizing effect of the little molten drop of metal is poor, thereby the coating that obtains is all not very good at aspects such as bond strength, porosity and surface roughnesses.
It is bigger that the purpose of this utility model provides a kind of spraying particle flying speed, and the little molten drop atomizing effect of metal can obtain the high velocity arc spraying gun of more satisfactory coating preferably.
For achieving the above object, the utility model is taked following design: a kind of high velocity arc spraying gun, comprise the handle and the bonnet that join with the rifle body, and compressed air joint passes described bonnet and links to each other with the endoceliac jet pipe of described rifle; Two conductive contacts pass described bonnet and are fixed in endoceliac two ignition tips of described rifle with insulation respectively and link to each other.
In order further to improve the flying speed of spraying particle, make the little molten drop atomizing effect of metal better, the utility model also is equipped with nozzle, and the offside that nozzle is positioned at described compressed air joint links to each other with described rifle body;
The utility model is owing to adopted above-mentioned design, thereby realized improving the speed of spraying particle with the supersonic atomization air-flow, more than the atomization gas flow velocity Du Keda 600m/s, the flying speed of particle can reach 250-350m/s in working range in distance spout port 80mm scope; The spraying particle granularity is the 1/3-1/8 of original granularity; Bond Strength of Coating improves 1.5-2.2 doubly; The deposition efficiency of spraying has brought up to 75% by original 60%.
Simple in structure, the easy operating of the utility model has interchangeability with common arc spray gun, utilizes common electric arc spraying equipment only to change spray gun and just can realize High Speed Electric Arc Spraying, and be useful for general execute-in-place.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model
As shown in Figure 1, the handle 5 of high velocity arc spraying gun and bonnet 2 join with rifle body 4; Jet pipe 3 in compressed air joint 1 passes bonnet 2 and is fixed on rifle body 4 chambeies links to each other, according to aerodynamic principle, the steady flow segment of one section overstriking is arranged in the cavity of compressed air joint 1, jet pipe 3 is the convergent-divergent pipe, its throat diameter is 8mm, and jet pipe 3 ports are 80mm apart from arc district center distance; Two conductive contacts 8 pass bonnet 2 and link to each other with two ignition tips 6 in insulation is fixed in rifle body 4 chambeies respectively, and the angle between two ignition tips 6 is 35 °;
In order further to improve the flying speed of spraying particle, make the little molten drop atomizing effect of metal better, as shown in Figure 1, also be equipped with nozzle 7 in the foregoing description, nozzle 7 links to each other with rifle body 4, and its connecting portion is at the offside of compressed air joint 1, nozzle 7 is for shrinking shape, and outlet diameter is 13mm;
In the above-described embodiments, the throat diameter of jet pipe 3 can be 7-9mm; Jet pipe 3 ports can be 65-95mm apart from the distance of arc district center; The outlet diameter of nozzle 7 can be 10-15mm; Angle between two ignition tips 6 can be 30 °-40 °.
The course of work of the present utility model is: two one metal wire materials are evenly sent in the ignition tip that has positive and negative electrode by wire-feed motor, and produce electric arc in its port part short circuit and make it be fused into little molten drop, supersonic airstream through forming by jet pipe and nozzle atomizes and arrives working surface with high velocity jet, forms the coating of high-quality.
Claims (7)
1, a kind of high velocity arc spraying gun comprises the handle and the bonnet that join with the rifle body, it is characterized in that: compressed air joint passes described bonnet and links to each other with the endoceliac jet pipe of described rifle; Two conductive contacts pass described bonnet and are fixed in endoceliac two ignition tips of described rifle with insulation respectively and link to each other.
2, high velocity arc spraying gun according to claim 1 is characterized in that: described rifle body is provided with a nozzle, and the offside that this nozzle is positioned at described compressed air joint links to each other with described rifle body.
3, high velocity arc spraying gun according to claim 1 is characterized in that: described jet pipe is the convergent-divergent pipe, and its throat diameter is 7-9mm.
4, high velocity arc spraying gun according to claim 2 is characterized in that: described nozzle is for shrinking shape, and outlet diameter is 10-15mm.
5, according to claim 1 or 2 or 3 or 4 described high velocity arc spraying guns, it is characterized in that: described spout port is 65-95mm apart from arc district center distance.
6, according to claim 1 or 2 or 3 or 4 described high velocity arc spraying guns, it is characterized in that: the angle between described two ignition tips is 30 °-40 °.
7, according to claim 1 or 2 or 3 or 4 described high velocity arc spraying guns, it is characterized in that: the steady flow segment that one section overstriking is arranged in the described compressed air joint cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99207827 CN2369773Y (en) | 1999-04-13 | 1999-04-13 | High speed electric arc spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99207827 CN2369773Y (en) | 1999-04-13 | 1999-04-13 | High speed electric arc spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2369773Y true CN2369773Y (en) | 2000-03-22 |
Family
ID=34001716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99207827 Expired - Fee Related CN2369773Y (en) | 1999-04-13 | 1999-04-13 | High speed electric arc spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2369773Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318148C (en) * | 2004-06-23 | 2007-05-30 | 哈尔滨工业大学 | Narrow gap electric arc spraying gun |
| CN110038747A (en) * | 2019-04-17 | 2019-07-23 | 广东工业大学 | A kind of arc pistol |
-
1999
- 1999-04-13 CN CN 99207827 patent/CN2369773Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318148C (en) * | 2004-06-23 | 2007-05-30 | 哈尔滨工业大学 | Narrow gap electric arc spraying gun |
| CN110038747A (en) * | 2019-04-17 | 2019-07-23 | 广东工业大学 | A kind of arc pistol |
| CN110038747B (en) * | 2019-04-17 | 2022-04-15 | 广东工业大学 | Electric arc spray gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |