CN202846376U - Ceramic sandblast nozzle with groove at conical opening - Google Patents
Ceramic sandblast nozzle with groove at conical opening Download PDFInfo
- Publication number
- CN202846376U CN202846376U CN 201220565464 CN201220565464U CN202846376U CN 202846376 U CN202846376 U CN 202846376U CN 201220565464 CN201220565464 CN 201220565464 CN 201220565464 U CN201220565464 U CN 201220565464U CN 202846376 U CN202846376 U CN 202846376U
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- ceramic
- sandblast nozzle
- groove
- entrance
- inlet
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Abstract
The utility model belongs to the manufacturing field, and particularly relates to a ceramic sandblast nozzle with a groove at a conical opening. The ceramic sandblast nozzle comprises a sandblast nozzle body, and is characterized in that an inlet of the body is shaped like a cone with a wide front part and a narrow rear part. The ceramic sandblast nozzle has the beneficial effects that according to the gas-solid two-phase flowing theory and the erosive wear of the ceramic sandblast nozzle, the conical inlet of the sandblast nozzle is designed, the wear resistance of the sandblast nozzle can be improved at certain extent through the structure, the service life is prolonged, and the groove arranged at the inlet inside the body can increase the roughness value of the wall surface of the inlet section, so that the radial speed of the abrasive at a boundary layer can be reduced, the axial speed is increased, and the use is convenient.
Description
(1) technical field
The utility model belongs to the manufacturing field, particularly a kind of cone mouth fluting ceramic sand jet.
(2) background technology
Blast nozzle requires to have high anti-wear performance, and except the material of making blast nozzle, the inner hole structure of blast nozzle is the key factor that affects its wearability, and at present, the finished product blast nozzle generally adopts the uniform internal diameter through-hole structure both at home and abroad, and its service life is short.
(3) summary of the invention
The utility model is in order to remedy the deficiencies in the prior art, and a kind of cone mouth fluting ceramic sand jet of easy to use, long service life is provided.
The utility model is achieved by the following technical solution:
A kind of cone mouth fluting ceramic sand jet comprises the body of blast nozzle, and its special character is: the entrance of this body is front wide and rear narrow taper.
The porch of described body arranges some grooves, and its groove width and groove depth are 1mm, for increasing the roughness value of entrance wall.
The cone angle of described entrance is 30 °, according to Gas-solid Two-phase Flow theory and ceramic sand jet Erosion wear characteristics, has designed the entrance of blast nozzle taper, and this structure has improved the wearability of blast nozzle to a certain extent.
The beneficial effects of the utility model are: the theoretical and ceramic sand jet Erosion wear characteristics according to Gas-solid Two-phase Flow, designed the entrance of the taper of blast nozzle, this structure has improved the wearability of blast nozzle to a certain extent, increase the service life, by in the body interior porch groove being set, to increase the roughness value of entrance wall, reduce the radial velocity of boundary layer abrasive material with this, increase axial velocity, easy to use.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is that master of the present utility model looks schematic diagram;
Accompanying drawing 2 is that schematic diagram is looked on the right side of the present utility model;
Among the figure, 1 body, 2 entrances, 3 grooves.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises the body 1 of blast nozzle, and the entrance 2 of this body 1 inside is front wide and rear narrow taper.Entrance 2 places of described body 1 inside arrange some grooves 3, and this groove 3 can be 2, and its groove width and groove depth are 1mm, for increasing the roughness value of entrance wall.The cone angle of described entrance 2 is 30 °, according to Gas-solid Two-phase Flow theory and ceramic sand jet Erosion wear characteristics, has designed the entrance 2 of blast nozzle taper, and this structure has improved the wearability of blast nozzle to a certain extent.
Actual use and the experimental study of ceramic sand jet show, the position of blast nozzle serious wear appears at abrasive material entrance 2 and the exit of blast nozzle, therefore change the version of blast nozzle entrance 2, improves its service life.
In order to address the above problem, the utility model is theoretical and ceramic sand jet Erosion wear characteristics according to Gas-solid Two-phase Flow, designed the entrance 2 of the taper of blast nozzle, this structure has improved the wearability of blast nozzle to a certain extent, but the shortcoming of conical entrance 2 blast nozzles is that the radially erosion speed of entrance 2 place's abrasive materials is larger, and hydraulically rough surface can reduce the radial velocity of boundary layer abrasive material, increase axial velocity, considered that large-area hydraulically rough surface can increase the energy loss of fluid, therefore the utility model only increases the roughness value of conical entrance 2 walls, namely at this section fluting, groove width and groove depth are 1mm.
This device is made graphite jig according to cylindrical and interior hole shape, adopt the boron carbide ceramics hot pressed sintering to form, be installed on the spray gun of sand-blasting machine, carry out the sandblast operation from different sand-blasting machines is supporting, this device can be widely used in the industries such as surface peening, removing surface and surface modification, wearability is good, long service life.
Claims (3)
1. cone mouth fluting ceramic sand jet comprises the body (1) of blast nozzle, and it is characterized in that: the entrance (2) of this body (1) is front wide and rear narrow taper.
2. cone mouth according to claim 1 fluting ceramic sand jet, it is characterized in that: the entrance (2) of this body (1) locates to arrange some grooves (3).
3. cone mouth according to claim 1 and 2 fluting ceramic sand jet, it is characterized in that: the cone angle of entrance (2) is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565464 CN202846376U (en) | 2012-10-31 | 2012-10-31 | Ceramic sandblast nozzle with groove at conical opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565464 CN202846376U (en) | 2012-10-31 | 2012-10-31 | Ceramic sandblast nozzle with groove at conical opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202846376U true CN202846376U (en) | 2013-04-03 |
Family
ID=47977612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220565464 Expired - Fee Related CN202846376U (en) | 2012-10-31 | 2012-10-31 | Ceramic sandblast nozzle with groove at conical opening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202846376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229688A (en) * | 2022-07-27 | 2022-10-25 | 怀化伯立迅科技有限公司 | Prevent mirror surface injection rifle head of static |
-
2012
- 2012-10-31 CN CN 201220565464 patent/CN202846376U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229688A (en) * | 2022-07-27 | 2022-10-25 | 怀化伯立迅科技有限公司 | Prevent mirror surface injection rifle head of static |
| CN115229688B (en) * | 2022-07-27 | 2023-12-05 | 怀化伯立迅科技有限公司 | Antistatic mirror surface spray gun head |
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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: 20130403 Termination date: 20131031 |