CN105081982A - Water-jet machining device - Google Patents
Water-jet machining device Download PDFInfo
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- CN105081982A CN105081982A CN201410187092.9A CN201410187092A CN105081982A CN 105081982 A CN105081982 A CN 105081982A CN 201410187092 A CN201410187092 A CN 201410187092A CN 105081982 A CN105081982 A CN 105081982A
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Abstract
The invention provides a water-jet machining device. The water-jet machining device comprises a pressure supply system, an injection system and a material supply system, wherein the pressure supply system and the material supply system are connected to the injection system respectively, the injection system comprises a sand mixing cavity and a nozzle, the sand mixing cavity is used for mixing high-pressure water with grinding materials to form a mixed solution, the injection system further comprises a shaping tube, the first inlet of the shaping tube is communicated with the outlet of the sand mixing cavity, the outlet of the shaping tube is communicated with the nozzle, and the sand mixing cavity is used for injecting the mixed solution into the shaping tube at low speed from the outlet of the sand mixing cavity to form a central water jet; and the pressure supply system comprises a buffering medium supply mechanism, the buffering medium supply mechanism is communicated with the second inlet of the shaping tube; the buffering medium supply mechanism is used for injecting a buffering medium into the shaping tube, the buffering medium wraps the peripheral side of the central water jet, and the central water jet wrapped with the buffering medium is ejected out from the nozzle to act on the machined workpiece. According to the water-jet machining device provided by the invention, the wear rates of the nozzle and the sand mixing cavity are reduced, and the maintenance cost is reduced.
Description
Technical field
The present invention relates to water jet machining technical field, particularly relate to a kind of water jet machining device.
Background technology
Water jet machining comprises the abrasive waterjet cutting of pure water water jet machining and additional abrasive material.Pure water water jet machining is to the wearing and tearing of nozzle well below abrasive waterjet cutting, but the working (machining) efficiency of pure water water jet is well below the working (machining) efficiency of abrasive waterjet cutting.
Nozzle and the mulling chamber wear rate of general water jet machining device are higher, cause the main cause of high wear rate be doping abrasive material water jet when high-voltage high-speed by nozzle and mulling chamber time, the inwall in abrasive material meeting direct friction nozzle and mulling chamber, thus cause the wearing and tearing of mulling chamber and nozzle, finally affect working ability.This just needs to change mulling chamber and nozzle frequently, and maintenance cost is higher.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of water jet machining device, reduce the wear rate in nozzle and mulling chamber, maintenance cost is low.
For achieving the above object, the present invention adopts following technical scheme:
A kind of water jet machining device, comprise for pressing system, spraying system and feeding system, described pressing system and the described feeding system of supplying is connected to described spraying system respectively, and described spraying system comprises mulling chamber and nozzle, mixed liquor is formed after water under high pressure mixes with abrasive material by described mulling chamber
Described spraying system also comprises shaping tube, first entrance of described shaping tube and the outlet in described mulling chamber, the outlet of described shaping tube is communicated with described nozzle, described mixed liquor is injected in described shaping tube from the outlet in described mulling chamber with middle pressure by described mulling chamber, forms center water jet;
The described pressing system that supplies also comprises buffer medium feed mechanism, described buffer medium feed mechanism is connected with the second entrance of described shaping tube, buffer medium is injected in described shaping tube with described middle pressure by described buffer medium feed mechanism, described buffer medium is wrapped in all sides of described center water jet, and the center water jet being enclosed with buffer medium acts on processed workpiece from described nozzle injection.
Wherein in an embodiment, described buffer medium is liquid, gas or gas-liquid mixed mixture.
Wherein in an embodiment, described buffer medium is the mixture of pure water or air or pure water and air.
Wherein in an embodiment, the internal diameter of the outlet of described shaping tube diminishes gradually along the axial direction of described shaping tube, thus makes the flow velocity of described center water jet become large gradually along the axial direction of described shaping tube.
Wherein in an embodiment, the inwall of the outlet of described shaping tube is smooth inner wall.
Wherein in an embodiment, the inwall of the outlet of described shaping tube is provided with spiral morpheme groove.
Wherein in an embodiment, the hole shape shape of described nozzle is circle, rectangle, square, ellipse or triangle.
Wherein in an embodiment, the shape of described nozzle is circular, and the internal diameter of described nozzle is 1 micron-100 microns.
Wherein in an embodiment, the internal diameter of the outlet in described mulling chamber is more than 2 times of the internal diameter of described nozzle.
Wherein in an embodiment, described nozzle is linear narrow structure.
Wherein in an embodiment, the external diameter of described nozzle is less than 3 millimeters, and the internal diameter of described nozzle is less than 50 microns, and the length of described nozzle is greater than 100 millimeters.
Wherein in an embodiment, described nozzle is flexible bending structure or rigid curved structure.
Wherein in an embodiment, the material of described nozzle is tungsten carbide, diamond or sapphire.
Wherein in an embodiment, the force value of described middle pressure is less than 400 MPas.
The invention has the beneficial effects as follows:
Water jet machining device of the present invention, by buffer medium being wrapped in all sides of center water jet in shaping tube, avoiding abrasive material and contacting with direct between nozzle and shaping tube, thus reducing the wear rate of nozzle.Mixed liquor low speed penetrates with middle pressure by mulling chamber, because the flow velocity of mixed liquor in mulling chamber is lower, thus reduces the wearing and tearing of abrasive material to mulling chamber.Water jet machining device of the present invention, by using buffer medium and contracted flow effect, effectively controlling the wearing and tearing of abrasive material to mulling chamber and nozzle, making the uniformity of processing obtain accurate control, reduce maintenance cost.
Accompanying drawing explanation
Fig. 1 is the system block diagram of water jet machining device one embodiment of the present invention;
Fig. 2 is the structural representation of the spraying system embodiment one of water jet machining device of the present invention;
Fig. 3 is the structural representation of the spraying system embodiment two of water jet machining device of the present invention;
Fig. 4 is the structural representation of the spraying system embodiment three of water jet machining device of the present invention;
Fig. 5 is the structural representation of the spraying system embodiment four of water jet machining device of the present invention;
Fig. 6 is the simulation result schematic diagram being enclosed with buffer medium center water jet of the present invention;
Fig. 7 is the velocity simulation result schematic diagram of center of the present invention water jet along the axial direction of shaping tube;
Fig. 8 is the velocity simulation result schematic diagram of center of the present invention water jet along the radial direction of nozzle.
Detailed description of the invention
In order to make technical scheme of the present invention clearly, below in conjunction with accompanying drawing, water jet machining device of the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain that the present invention is not intended to limit the present invention.
See Fig. 1 to Fig. 8, as shown in Figure 1, water jet machining device of the present invention comprises for pressing system 100, spraying system 200 and feeding system 300, and is connected to spraying system 200 respectively for pressing system 100 and feeding system 300.Wherein, water supply installation 110, pressurized equipment, energy storage device, pressure control mechanism, high-pressure water tank, power source and buffering media feed mechanism 120 is comprised for pressing system 100; Feeding system 300 comprises control valve, feeding abrasive material mechanism 310 and abrasive material storehouse, and control valve and abrasive material storehouse are connected to feeding abrasive material mechanism 310 respectively; Spraying system 200 comprises mulling chamber 210, shaping tube 220 and nozzle 230, and shaping tube 220 is arranged between mulling chamber 210 and nozzle 230, namely the outlet in mulling chamber 210 is connected with the first entrance 221 of shaping tube, and the outlet 223 of shaping tube is connected with the entrance of nozzle 230.
Water supply installation 110 is connected with high-pressure water tank with pressurized equipment, energy storage device successively, and pressurized equipment is connected with pressure control mechanism respectively with energy storage device.The low-pressure water that pressurized equipment is used for water supply installation to provide forms water under high pressure, and energy storage device is used for the hydraulic pressure of stable high voltage water, and high-pressure water tank is for storing water under high pressure, and high-pressure water tank is connected with mulling chamber 210, for being injected in mulling chamber 210 by water under high pressure.
Feeding abrasive material mechanism 310 is connected with mulling chamber 210, for being incident upon in mulling chamber 210 by abrasive material.Abrasive material forms mixed liquor after mixing fully in mulling chamber 210 with water under high pressure, then mixed liquor is injected in shaping tube 220 from the outlet low speed in mulling chamber 210 with middle pressure by mulling chamber 210, formation center water jet, wherein, the speed of center water jet is far longer than the speed of mixed liquor.Like this, because the flow velocity of mixed liquor is lower, reduce the friction between abrasive material and mulling chamber 210 inwall in mixed liquor, thus reduce the wear rate in mulling chamber 210.
The input of buffer medium feed mechanism 120 is connected with power source, and the output of buffer medium feed mechanism 120 is connected with the second entrance 222 of shaping tube 220, for being injected in shaping tube 220 by buffer medium.In the present embodiment, buffer medium is injected in shaping tube 220 with middle pressure by buffer medium feed mechanism 120.Buffer medium is wrapped in all sides of center water jet, and the center water jet being enclosed with buffer medium penetrates from nozzle 230 and acts on processed workpiece.
As shown in Figure 6, when the center water jet being enclosed with buffer medium penetrates from nozzle 230, avoid nozzle 230 and contact with the direct of center water jet containing abrasive material, thus reduce the wear rate of nozzle 230.It should be understood that the speed being enclosed with the center water jet of buffer medium sprayed from nozzle 230 is greater than the speed of the center water jet penetrated from mulling chamber 210, the working ability of this water jet machining device can be ensured like this.
Preferably, the force value of middle pressure is less than 400 MPas, like this can economize energy, reduces the requirement to equipment.Traditional water jet machining employing pure water water jet machining replacement abrasive waterjet cutting reduces the wearing and tearing to nozzle 230 and mulling chamber 210, but in order to ensure working ability, to the requirement of pressure more and more higher (more than 400 MPas), which results in energy loss.Adopt force value to be less than the middle pressure of 400 MPas in the present embodiment, save the energy.
By buffer medium being wrapped in all sides of center water jet in shaping tube 220, avoiding abrasive material and contacting with direct between nozzle 230 and shaping tube 220, thus reducing the wear rate of nozzle 230.Mixed liquor low speed penetrates by mulling chamber 210, because the flow velocity of mixed liquor in mulling chamber 210 is lower, thus reduces the wearing and tearing of abrasive material to mulling chamber 210.By using buffer medium and contracted flow effect, effectively controlling the wearing and tearing of abrasive material to mulling chamber 210 and nozzle 230, making the uniformity of processing obtain accurate control, reduce maintenance cost.
As a kind of embodiment, buffer medium can be liquid, gas or gas-liquid mixture.Preferably, buffer medium can be the mixture of pure water or air or pure water and air.Such as, when buffer medium is pure water, pure water is wrapped in all sides of center water jet.Now center water jet is positioned at center, does not directly contact with the inwall of shaping tube 220, and the wearing and tearing of shaping tube 220 depend primarily on the frictional dissipation between pure water and shaping tube 220 inwall.This avoid the center water jet containing abrasive material to contact with the direct of inwall of shaping tube 220, thus improve the antiwear property of shaping tube 220.Then, center water jet ejection that pure water wraps up by nozzle 230, to avoid between center water jet containing abrasive material and the inwall of nozzle 230 direct contacts, and reduces the wear rate of nozzle 230.
Certainly, buffer medium can also be other liquid beyond other gases such as air or pure water, or buffer medium is gas-liquid mixture.Such as, buffer medium is gas-liquid mixture, and now, liquid is wrapped in all sides of center water jet, and gas wrapping is in all sides of liquid, and gas directly contacts with the inwall of shaping tube 220, reduces the wear rate of shaping tube 220.
As shown in Figure 8, the center water jet containing abrasive material does not directly contact with the inwall of nozzle 230, and buffer medium is wrapped in all sides of center water jet, and buffer medium directly contacts with the inwall of nozzle 230.Although the flow velocity of buffer medium in nozzle 230 is greater than the flow velocity of center water jet, but not containing abrasive material in buffer medium, so just greatly reduce the wear rate of nozzle 230, extend the service life of nozzle 230, improve the working (machining) efficiency of this water jet machining device and the uniformity of processing.
As a kind of embodiment, the internal diameter of the outlet 223 of shaping tube diminishes gradually along the axial direction of shaping tube 220, due to mass conservation law and contracted flow effect, makes the flow velocity of center water jet become large gradually along the axial direction of shaping tube 220.It should be understood that the axial direction of shaping tube 220 refers to the direction of the first entrance 221 to the outlet 223 of shaping tube of shaping tube.Like this, the speed of speed at nozzle 230 place being enclosed with the center water jet of buffer medium increases, even if only use middle pressure (pressure is less than 400 MPas), the speed when center water jet being enclosed with buffer medium penetrates from nozzle 230 still can reach speed during high pressure (pressure is greater than 400 MPas).Like this, the speed of the mixed liquor in mulling chamber 210 is lower, reduces the wear rate in mulling chamber 210, is then improved the speed of center water jet gradually by contracted flow effect, ensure that the working ability of water jet machining device.
As shown in Figure 7, get the mid point of the length of shaping tube 220 as initial point, the axial direction of shaping tube 220 is as y-axis, the radial direction of shaping tube 220 is as x-axis, set up rectangular coordinate system, be the positive direction of y-axis from initial point to direction, mulling chamber 210, from initial point to nozzle, 230 directions are the negative direction of y-axis.As can be seen from Figure 7, along the positive direction of y-axis, the caliber of shaping tube 220 becomes large gradually, and in shaping tube 220, the flow velocity of center water jet is less.Along the negative direction of y-axis, the caliber of shaping tube 220 diminishes gradually, and due to mass conservation law and contracted flow effect, the flow velocity of center water jet increases gradually.
Meanwhile, the force value due to middle pressure is less than 400 MPas, therefore, by suitable adjustment concentricity and pressure, can ensure the long distance parcel of buffer medium centering edema with the heart involved jet, thus reduce the wear rate of shaping tube 220.
As a kind of embodiment, the hole shape shape of nozzle 230 can be circle, rectangle, square, ellipse or triangle.Certainly, the hole shape shape of nozzle 230 can also be other shapes.More preferably, the hole shape shape of nozzle 230 is circular, and the shape of the outlet in mulling chamber 210 is also circular, and the internal diameter of the outlet in mulling chamber 210 is more than 2 times of the internal diameter of nozzle 230.Can ensure that mulling chamber 210 is with low speed injection center water jet like this, reduce the wear rate in mulling chamber 210, nozzle 230 is enclosed with the center water jet of buffer medium with the injection of higher speed, while the wear rate reducing nozzle 230, ensures the working ability of water jet machining device.
Preferably, the internal diameter of nozzle 230 is 1 micron-100 microns.The diameter of the nozzle 230 of general water jet machining device is more than 200 microns, and because the internal diameter of nozzle 230 is less, the wearing and tearing of nozzle 230 are faster, and the life-span of general nozzle 230 is less than 200 hours.And in the present embodiment, use due to buffer medium reduces the wear rate of nozzle 230, the water jet machining device of the present embodiment can realize the internal diameter of nozzle 230 much smaller than 200 microns, simultaneously relative to general abrasive water-jet device, the service life of nozzle 230 obtains prolongation, makes it can compete mutually with precision processing technologies such as laser.It should be noted that and now require to use ultra-fine abrasive material, preferably, the diameter of abrasive material is less than 30% of outgoing water jet diameter.
More preferably, the material of nozzle 230 can use tungsten carbide, diamond or jewel etc.Traditional water jet machining device, in order to reduce the wearing and tearing of nozzle 230, usually can use the nozzle material than higher-end, and as diamond, but the cost of diamond nozzle is higher.In the present embodiment, owing to reducing the wear rate of nozzle 230, the material of nozzle will be not limited to use diamond.
Embodiment one
As shown in Figure 2, the inwall of the outlet 223 of shaping tube is smooth inner wall, and the length of nozzle 230 is shorter.In mulling chamber 210, abrasive material and the mixed mixed liquor of water under high pressure are ejected by the outlet in mulling chamber 210, form center water jet.In mulling chamber 210, the flow velocity of mixed liquor is lower, and in mulling chamber 210, the flow velocity of mixed liquor is far smaller than the flow velocity of center water jet.In traditional high pressure mulling chamber, the flow velocity of mixed liquor is greater than 400 metre per second (m/s)s, and in the present embodiment, in mulling chamber 210, the flow velocity of mixed liquor is lower than 20 metre per second (m/s)s.Make abrasive material like this to the wearing and tearing of the inwall in mulling chamber 210 much smaller than traditional high pressure mulling chamber, reduce the wear rate in mulling chamber 210.
The center water jet that mulling chamber 210 ejects enters shaping tube 220 from the first entrance 221 of shaping tube, and along with the internal diameter of the outlet 223 of shaping tube diminishes gradually, the flow velocity of center water jet increases gradually.Meanwhile, the buffer medium injected from the second entrance 222 of shaping tube is wrapped in all sides of center water jet, avoids water jet containing abrasive material to the friction between the inwall of shaping tube 220 and nozzle 230, reduces the wear rate of shaping tube 220 and nozzle 230.
Due to the alleviation of the wear problem of nozzle 230, therefore the diameter of nozzle 230 can reach 1 micron-100 microns, which improves the resolution ratio of this water jet machining device and the uniformity of processing, reduces the cost of maintenance.
Embodiment two
As shown in Figure 3, in order to strengthen the parcel degree of buffer medium centering edema with the heart involved jet further, the inwall of the outlet 223 of shaping tube can be designed to the Non-smooth surface inwall with geometry.Preferably, the inwall of the outlet 223 of shaping tube being provided with spiral morpheme groove 224, making buffer medium just produce helical effect before merging with center water jet, for improving the stability of parcel.Experimental simulation result can be found out, maintains the stability of center water jet better, improve the kinetic energy of center water jet with the shaping tube 220 of spiral morpheme groove 224 than the shaping tube 220 of smooth structure.
Embodiment three
As shown in Figure 4, in the present embodiment, nozzle 230 is linear narrow structure, and passes through the external diameter of Control Nozzle 230, makes this nozzle 230 can go deep into narrow space and processes.Preferably, the external diameter of nozzle 230 is less than 3 millimeters, and internal diameter is less than 50 microns, and the length of nozzle 230 is greater than 100 millimeters.In conventional art, because the inwall of abrasive material with nozzle 230 directly contacts, abrasive material can cause the life-span of nozzle 230 greatly to decline to the wearing and tearing of nozzle 230, and therefore the length of nozzle 230 is shorter.In the present embodiment, because buffer medium reduces the wear rate of nozzle 230, just can longer by the Design of length of nozzle 230, the diameter design of nozzle 230 less.In the present embodiment, the material of nozzle 230 is tungsten carbide, and the hole shape shape of nozzle 230 is circular.Certainly, the material of nozzle 230 also can use diamond or sapphire, and the hole shape shape of nozzle 230 also can be non-circular.In the present embodiment, the inwall of the outlet of shaping tube 220 can be smooth inner wall, also can for being provided with the Non-smooth surface inwall of spiral morpheme groove etc.
Embodiment four
As shown in Figure 5, in the present embodiment, nozzle 230 is flexible bending structure or rigid curved structure, for the water jet machining of non-straight hole.Nozzle 230 refers to that nozzle 230 can use high voltage bearing flexible conduit for flexible bending structure.In conventional art, warp architecture is punctured fast by causing the tube wall of nozzle 230.In the present embodiment, due to the use of buffer medium, avoid the situation that nozzle 230 that high-pressure water jet causes is breakdown, make nozzle 230 to adopt warp architecture.In the present embodiment, the inwall of the outlet of shaping tube 220 can for having smooth inner wall, also can for being provided with the Non-smooth surface inwall of spiral morpheme groove etc.
Water jet machining device of the present invention, by buffer medium being wrapped in all sides of center water jet in shaping tube, avoiding abrasive material and contacting with direct between nozzle and shaping tube, thus reducing the wear rate of nozzle.Mixed liquor low speed penetrates by mulling chamber, because the flow velocity of mixed liquor in mulling chamber is lower, thus reduces the wearing and tearing of abrasive material to mulling chamber.Water jet machining device of the present invention, by using buffer medium and contracted flow effect, effectively controlling the wearing and tearing of abrasive material to mulling chamber and nozzle, making the uniformity of processing obtain accurate control, reduce maintenance cost.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (14)
1. a water jet machining device, comprise for pressing system, spraying system and feeding system, described pressing system and the described feeding system of supplying is connected to described spraying system respectively, described spraying system comprises mulling chamber and nozzle, form mixed liquor after water under high pressure mixes with abrasive material by described mulling chamber, it is characterized in that:
Described spraying system also comprises shaping tube, first entrance of described shaping tube and the outlet in described mulling chamber, the outlet of described shaping tube is communicated with described nozzle, described mixed liquor is injected in described shaping tube from the outlet in described mulling chamber with middle pressure by described mulling chamber, forms center water jet;
The described pressing system that supplies also comprises buffer medium feed mechanism, described buffer medium feed mechanism is connected with the second entrance of described shaping tube, buffer medium is injected in described shaping tube with described middle pressure by described buffer medium feed mechanism, described buffer medium is wrapped in all sides of described center water jet, and the center water jet being enclosed with buffer medium acts on processed workpiece from described nozzle injection.
2. water jet machining device according to claim 1, is characterized in that:
Described buffer medium is liquid, gas or gas-liquid mixture.
3. water jet machining device according to claim 1, is characterized in that:
Described buffer medium is the mixture of pure water or air or pure water and air.
4. water jet machining device according to claim 1, is characterized in that:
The internal diameter of the outlet of described shaping tube diminishes gradually along the axial direction of described shaping tube, thus makes the flow velocity of described center water jet become large gradually along the axial direction of described shaping tube.
5. water jet machining device according to claim 4, is characterized in that:
The inwall of the outlet of described shaping tube is smooth inner wall.
6. water jet machining device according to claim 4, is characterized in that:
The inwall of the outlet of described shaping tube is provided with spiral morpheme groove.
7. water jet machining device according to claim 1, is characterized in that:
The hole shape shape of described nozzle is circle, rectangle, square, ellipse or triangle.
8. water jet machining device according to claim 1, is characterized in that:
The shape of described nozzle is circular, and the internal diameter of described nozzle is 1 micron-100 microns.
9. water jet machining device according to claim 8, is characterized in that:
The internal diameter of the outlet in described mulling chamber is more than 2 times of the internal diameter of described nozzle.
10. the water jet machining device according to any one of claim 1-9, is characterized in that:
Described nozzle is linear narrow structure.
11. water jet machining devices according to claim 10, is characterized in that:
The external diameter of described nozzle is less than 3 millimeters, and the internal diameter of described nozzle is less than 50 microns, and the length of described nozzle is greater than 100 millimeters.
12. water jet machining devices according to any one of claim 1-9, is characterized in that:
Described nozzle is flexible bending structure or rigid curved structure.
13. water jet machining devices according to claim 1, is characterized in that:
The material of described nozzle is tungsten carbide, diamond or sapphire.
14. water jet machining devices according to claim 1, is characterized in that:
The force value of described middle pressure is less than 400 MPas.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187092.9A CN105081982A (en) | 2014-05-04 | 2014-05-04 | Water-jet machining device |
| PCT/CN2015/082190 WO2015169263A2 (en) | 2014-05-04 | 2015-06-24 | Water jet machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410187092.9A CN105081982A (en) | 2014-05-04 | 2014-05-04 | Water-jet machining device |
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| Publication Number | Publication Date |
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| CN105081982A true CN105081982A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410187092.9A Pending CN105081982A (en) | 2014-05-04 | 2014-05-04 | Water-jet machining device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105081982A (en) |
| WO (1) | WO2015169263A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105773431A (en) * | 2016-03-14 | 2016-07-20 | 刘媛婷 | Abrasive water jet metallic surface cleaning system |
| CN107671733A (en) * | 2017-11-22 | 2018-02-09 | 河南理工大学 | A kind of abrasive material gas fluidic device and method that abrasive material reduction nozzle wear is wrapped up in using ice |
| CN108115578A (en) * | 2017-12-21 | 2018-06-05 | 纪新刚 | A kind of spiral-flow type injection structure and its spray gun |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110153900A (en) * | 2019-06-20 | 2019-08-23 | 内蒙古尾得选矿科技有限公司 | Sand water mixes spray apparatus in a kind of roller |
| CN115141917B (en) * | 2022-07-05 | 2023-11-14 | 华东理工大学 | Multi-medium synergistic water jet surface strengthening spraying device and method |
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| CN107671733A (en) * | 2017-11-22 | 2018-02-09 | 河南理工大学 | A kind of abrasive material gas fluidic device and method that abrasive material reduction nozzle wear is wrapped up in using ice |
| CN108115578A (en) * | 2017-12-21 | 2018-06-05 | 纪新刚 | A kind of spiral-flow type injection structure and its spray gun |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015169263A3 (en) | 2016-01-07 |
| WO2015169263A2 (en) | 2015-11-12 |
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