CN105772242A - Heat resistant abrasion resistant spray nozzle - Google Patents
Heat resistant abrasion resistant spray nozzle Download PDFInfo
- Publication number
- CN105772242A CN105772242A CN201410786484.7A CN201410786484A CN105772242A CN 105772242 A CN105772242 A CN 105772242A CN 201410786484 A CN201410786484 A CN 201410786484A CN 105772242 A CN105772242 A CN 105772242A
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- CN
- China
- Prior art keywords
- bellmouth
- nozzle
- hole
- spray nozzle
- diamond
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- 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 invention discloses a heat resistant abrasion resistant spray nozzle which comprises a nozzle body and a nozzle inner hole, wherein the nozzle inner hole comprises a cylindrical hole, a first conical hole and a second conical hole; the diameters of the cylindrical hole, the first conical hole and the second conical hole gradually become large; the taper of the first conical hole is larger than the taper of the second conical hole; and a diamond-like coating is compounded on the inner surfaces of the cylindrical hole, the first conical hole and the second conical hole. According to the spray nozzle provided by the invention, the nozzle inner hole is divided into the cylindrical hole, the first conical hole and the second conical hole, and the surface of the inner hole is coated with a diamond-like thin film, so that the erosion resistance of the nozzle is greatly improved.
Description
Technical field
The invention belongs to jet atomization device field, relate to a kind of spray nozzle, be specifically related to a kind of spray nozzle with excellent antiwear and heat resistance.
Background technology
Spray nozzle is the critical component in spraying, sand blasting unit, the working environment of spray nozzle is comparatively severe, during work, the working surface of nozzle can be produced strong erosion effect by the spray slurry of High Temperature High Pressure, and therefore plain nozzle useful life longevity is poor, and replacement frequency is high.This phenomenon special type sprays in (such as metal, ceramic spraying) especially pronounced, for that purpose it is necessary to redesign spray nozzle to strengthen its useful life longevity, it is to avoid frequently change.
Summary of the invention
In view of this, it is an object of the invention to provide one high temperature resistant, anticorrosive, it is adaptable to the extraordinary spraying nozzle of metal or ceramic spraying.
For this, the present invention provides following technical scheme:
A kind of heat-resistant abrasion spray nozzle, including nozzle body and nozzle bore, described nozzle bore includes post holes, the first bellmouth and the second bellmouth, the aperture of described post holes, the first bellmouth and the second bellmouth becomes larger and the tapering of the first bellmouth is more than the second bellmouth, and described post holes, the first bellmouth and the second bellmouth inner surface are compounded with diamond-like coating.
Preferred as this programme, the tapering of described first bellmouth is 1.8-2.5, and the tapering of the second bellmouth is 1.2-1.5.
Preferred as this programme, the thickness respectively 8-12 μm of described post holes, the first bellmouth and the second bellmouth inner surface diamond-like coating, 10-15 μm and 18-30 μm.
Preferred as this programme, described nozzle body material is silicon carbide ceramics.
Preferred as this programme, described diamond-like coating is hydrogenated diamond-like carbon film.
The beneficial effects of the present invention is: the spraying nozzle nozzle bore of the present invention includes post holes, the first bellmouth and the second bellmouth, significantly reduce the spray paint erosion effect to shower nozzle when ensureing spraying rate and pressure；The present invention is coated with one layer of diamond like carbon film at post holes, the first bellmouth and the second bellmouth inner surface further, and the anti-erosion property of shower nozzle is greatly improved；The present invention optimizes the thickness of each several part coating further combined with each several part erosion mechanism, reduces product cost when guaranteeing service life.
Accompanying drawing explanation
In order to make the purpose of the present invention, technical scheme and beneficial effect clearly, the present invention provides drawings described below to illustrate:
Fig. 1 is heat-resistant of the present invention abrasion spray nozzle structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Embodiment 1:
As shown in Figure 1, the heat-resistant abrasion spray nozzle of the present embodiment, including nozzle body 1 and nozzle bore 2, in described nozzle, 2 holes include post holes the 3, first bellmouth 4 and the second bellmouth 5, the aperture of described post holes the 3, first bellmouth 4 and the second bellmouth 5 becomes larger and the tapering of the first bellmouth 2 is more than the second bellmouth 5, and described post holes the 3, first bellmouth 4 and the second bellmouth 5 inner surface are compounded with diamond-like coating.
In the present embodiment, the tapering of described first bellmouth 4 is 1.8-2.5, and the tapering of the second bellmouth 5 is 1.2-1.5.
In the present embodiment, the thickness respectively 8-12 μm of described post holes the 3, first bellmouth 4 and the second bellmouth 5 inner surface diamond-like coating, 10-15 μm and 18-30 μm.
In the present embodiment, described nozzle body 1 material is silicon carbide ceramics.
In the present embodiment, described diamond-like coating is hydrogenated diamond-like carbon film.
It should be noted that, the size of nozzle body 1, post holes the 3, first bellmouth 4 and the second bellmouth 5 is not specially required by the present embodiment, but the aperture of post holes 3 is preferably 1-2mm, the first bellmouth 4 basal diameter is preferably 20-30mm, and the second bellmouth 5 diameter is preferably 35-45mm.
The spraying nozzle nozzle bore of the present invention is divided into post holes, the first bellmouth and the second bellmouth, and bore area is coated with one layer of diamond like carbon film, and the anti-erosion property of shower nozzle is greatly improved.
What finally illustrate is, preferred embodiment above is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail by above preferred embodiment, but skilled artisan would appreciate that, in the form and details it can be made various change, without departing from claims of the present invention limited range.
Claims (5)
1. a heat-resistant abrasion spray nozzle, including nozzle body (1) and nozzle bore (2), it is characterized in that: described nozzle bore (2) includes post holes (3), the first bellmouth (4) and the second bellmouth (5), the aperture of described post holes (3), the first bellmouth (4) and the second bellmouth (5) becomes larger and the tapering of the first bellmouth (4) is more than the second bellmouth (5), and described post holes (3), the first bellmouth (4) and the second bellmouth (5) inner surface are compounded with diamond-like coating.
2. according to claim 1 heat-resistant abrasion spray nozzle, it is characterised in that: the tapering of described first bellmouth (4) is 1.8-2.5, and the tapering of the second bellmouth (5) is 1.2-1.5.
3. according to claim 1 heat-resistant abrasion spray nozzle, it is characterised in that: the thickness respectively 8-12 μm of described post holes (3), the first bellmouth (4) and the second bellmouth (5) inner surface diamond-like coating, 10-15 μm with 18-30 μm.
4. according to claim 1 heat-resistant abrasion spray nozzle, it is characterised in that: described nozzle body (1) material is silicon carbide ceramics.
5. according to claim 1 heat-resistant abrasion spray nozzle, it is characterised in that: described diamond-like coating is hydrogenated diamond-like carbon film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410786484.7A CN105772242A (en) | 2014-12-18 | 2014-12-18 | Heat resistant abrasion resistant spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410786484.7A CN105772242A (en) | 2014-12-18 | 2014-12-18 | Heat resistant abrasion resistant spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105772242A true CN105772242A (en) | 2016-07-20 |
Family
ID=56373433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410786484.7A Pending CN105772242A (en) | 2014-12-18 | 2014-12-18 | Heat resistant abrasion resistant spray nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105772242A (en) |
-
2014
- 2014-12-18 CN CN201410786484.7A patent/CN105772242A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |