CN206494962U - Spray tip - Google Patents
Spray tip Download PDFInfo
- Publication number
- CN206494962U CN206494962U CN201621481392.9U CN201621481392U CN206494962U CN 206494962 U CN206494962 U CN 206494962U CN 201621481392 U CN201621481392 U CN 201621481392U CN 206494962 U CN206494962 U CN 206494962U
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- CN
- China
- Prior art keywords
- nozzle head
- ceramic rod
- acetylene
- oxygen
- air cap
- 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.)
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Abstract
The utility model discloses a kind of spray tip, the spray tip on nozzle head, the nozzle head including being provided with oxygen outlet, acetylene hole and ceramic rod hole, and wherein ceramic rod hole position is in the center of nozzle head, and the front end of the nozzle head is provided with air cap；The nozzle head is fixed with air cap by spray gun；The ceramic rod hole position is realized ceramic rod continuous uniform passing through nozzle head in nozzle head center；The oxygen outlet is to send into oxygen inside nozzle head；The acetylene hole is to send into acetylene inside nozzle head, with forming fuel gas after oxygen mix；The compressed air apertures are to be passed through compressed air the ceramic rod material of fusing is atomized into tiny smelting and painting to matrix to form ceramic coating；The nozzle head and air cap are fixed for ceramic rod flame spraying by spray gun, and its described spray tip can realize that anchoring strength of coating is high, porosity is low, hardness is high, oxide content is small, wear-corrosion resistance is good and other effects.
Description
Technical field
The utility model is related to a kind of spray tip, is particularly suitable for ceramic rod flame spraying project, belongs to spray gun fittings skill
Art field.
Background technology
Ceramic rod flame spraying is that ceramic round bar termination is fused into ceramics liquid drop by high temperature oxy-acetylene flame, is then sprayed again
The surface of part is mapped to, uniform, the fine and close, ceramic coating of function admirable is formed.There is technique to be simple and convenient to operate for it, coating
The advantages of excellent performance, wide applicable surface, be a kind of practical and effective ceramic spraying technology.
Heating fusing to ceramic material realizes that spray gun introduces acetylene, oxygen by air valve respectively by flame gun
After gas and compressed air, acetylene and oxygen mix combustion flame is produced in nozzle exit.Drive mechanism in rifle passes through roller
Drive bar to send into flame continually by nozzle center hole, fusing is heated in flame.After compressed air is by air cap
The high speed steam flow of taper is formed, the material of fusing is departed from from bar end, and is atomized into trickle particle, in flame and air-flow
Promotion under, be ejected into substrate surface formation coating.Because the ignition temperature of acetylene and oxygen is up to 3500 DEG C, so general eutectic
The ceramic material of point can be melted, and spraying of the prior art is unsatisfactory, and the bond strength of coating is low, porosity is high, hard
The low, oxide content of degree is big, the problems such as easily corrode.
The content of the invention
The utility model provides a kind of spray tip, and undesirable to solve conventional spray paint effect, service life is short to ask
Topic, realizes that coating prepared by spraying has bond strength height, porosity is low, hardness is high, oxide content is small, abrasion and corrosion resistance
Can be good the advantages of.It is the technical scheme overall structure advantages of simple, safe and reliable, easy to use.The technical scheme is by changing
Oxygen, acetylene hole site, change after air cap size makes oxygen, acetylene torch injection and reach a best angle, realize and improve
Muzzle temperature and such a purpose of particle temperature.
To achieve these goals, the technical solution of the utility model is as follows：A kind of spray tip, it is characterised in that institute
Spray tip is stated including being provided with oxygen outlet, acetylene hole and ceramic rod hole, wherein ceramic rod hole position on nozzle head, the nozzle head
In the center of nozzle head, the front end of the nozzle head is provided with air cap.
As a kind of improvement of the present utility model, the rear end of the air cap is provided with compressed air apertures.
As a kind of improvement of the present utility model, the angle of inclination of the oxygen outlet is 14.5 ° ~ 15.5 °.By changing oxygen
Stomata angle makes oxygen, acetylene torch reach best combustion effect.
As a kind of improvement of the present utility model, acetylene hole angle of inclination is 14.5 ° ~ 15.5 °.Ensure each acetylene
The position in hole is perfectly aligned with oxygen outlet, is sufficiently mixed oxygen, acetylene gas, is fully burnt in combustion chamber；
As a kind of improvement of the present utility model, the length of the air cap is 21.5 ~ 22.5mm.Foot can so be increased
Enough combustion spaces, can guarantee that ceramic rod fully melts in flame kernel again.
As a kind of improvement of the present utility model, the air cap outlet aperture is 7.5 ~ 8.5mm.Reduce outlet diameter with
Increase ceramic particle jet velocity, reach more preferable spraying effect.
Relative to prior art, advantage of the present utility model is as follows：
（1）The technical scheme global design is ingenious, simple and reasonable, safe and reliable, easy to operate；
（2）The technical scheme can reach an optimal burned angle compared to traditional spray tip, form high
Temperature, the particle flux of high speed, reach more preferable spraying effect.
（3）The coating that the technical scheme sprays preparation after improvement has bond strength height, porosity is low, hardness is high, oxygen
The advantages of compound content is small, wear-corrosion resistance is good, its prepare ceramic coating have good wearability can, with good
Application prospect, can be applicable on a large scale.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model spray tip；
Fig. 2 is the utility model jet area figure；
In figure：1 is nozzle head, and 2 be air cap, and 3 be ceramic rod hole, and 4 be oxygen outlet, and 5 be acetylene hole, and 6 be compressed air
Hole.7 be oxygen, acetylene gas mixture outlet opening.
Embodiment
The utility model is further described with embodiment with reference to Figure of description, but the embodiment is only used for this reality
With new rather than limitation the utility model.
Embodiment 1：Referring to Fig. 1, Fig. 2, a kind of spray tip, the spray tip includes nozzle head 1, the nozzle head 1
On be provided with oxygen outlet 4, acetylene hole 5 and ceramic rod hole 3, wherein ceramic rod hole 3 is located at the center of nozzle head body, described
The front end of nozzle head is provided with air cap, and the rear end of the air cap is provided with compressed air apertures 6；The nozzle head and air cap
It is fixed on spray gun；The ceramic rod hole is realized passes through nozzle head by ceramic rod continuous uniform；The oxygen outlet is by oxygen
Send into inside nozzle head；The acetylene hole is to send into acetylene inside nozzle head, with forming fuel gas after oxygen mix；It is described
Compressed air apertures are to be passed through compressed air the ceramic rod material of fusing is atomized into tiny smelting and painting to form ceramics to matrix
Coating；In the technical scheme, the angle of inclination of the oxygen outlet is 14.5 ° ~ 15.5 °, by change oxygen orifice angle make oxygen,
Acetylene torch reaches best combustion effect；Acetylene hole angle of inclination is 14.5 ° ~ 15.5 °.Ensure the position in each acetylene hole
It is perfectly aligned with oxygen outlet, oxygen, acetylene gas are sufficiently mixed, is fully burnt in combustion chamber；The length of the air cap
For 21.5 ~ 22.5mm.Enough combustion spaces can so be increased, can guarantee that ceramic rod fully melts in flame kernel again；Institute
Air cap outlet aperture is stated for 7.5 ~ 8.5mm.Reduce outlet diameter to increase ceramic particle jet velocity, reach more preferable spraying
Effect.
Operation principle：Referring to Fig. 1, Fig. 2, nozzle head and air cap are fixed together to form chamber by spray gun, and spray gun leads to
Air valve is crossed to introduce respectively after acetylene, oxygen and compressed air, acetylene and oxygen mix in nozzle exit generation combustion flame, rifle
Interior drive mechanism drives bar to send into flame continually by nozzle center hole by roller, and fusing is heated in flame,
Compressed air makes the material of fusing depart from from bar end by the high speed steam flow of formation taper after air cap, and is atomized into thin
Micro- particle, under the promotion of flame and air-flow, is ejected into substrate surface formation coating.
It should be noted that above-described embodiment is only preferred embodiment of the present utility model, it is not for limiting this reality
With new protection domain, the equivalent substitution or replacement made on the basis of the above belong to protection model of the present utility model
Enclose, protection domain of the present utility model is defined by claims.
Claims (1)
1. a kind of spray tip, it is characterised in that the spray tip includes nozzle head and air cap, the nozzle head and air
Cap is fixed on spray gun；Oxygen outlet, acetylene hole and ceramic rod hole are provided with the nozzle head, wherein ceramic rod hole position is in nozzle
The center of head；The rear end of the air cap is provided with compressed air apertures；The angle of inclination of the oxygen outlet be 14.5 ° ~
15.5°；Acetylene hole angle of inclination is 14.5 ° ~ 15.5 °；The length of the air cap is 21.5 ~ 22.5mm；The air
Cap outlet aperture is 7.5 ~ 8.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621481392.9U CN206494962U (en) | 2016-12-30 | 2016-12-30 | Spray tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621481392.9U CN206494962U (en) | 2016-12-30 | 2016-12-30 | Spray tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206494962U true CN206494962U (en) | 2017-09-15 |
Family
ID=59802850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621481392.9U Active CN206494962U (en) | 2016-12-30 | 2016-12-30 | Spray tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206494962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020077960A1 (en) * | 2018-10-18 | 2020-04-23 | 江苏新春兴再生资源有限责任公司 | Side blowing lance for smelting furnace and use method |
-
2016
- 2016-12-30 CN CN201621481392.9U patent/CN206494962U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020077960A1 (en) * | 2018-10-18 | 2020-04-23 | 江苏新春兴再生资源有限责任公司 | Side blowing lance for smelting furnace and use method |
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| GR01 | Patent grant |