CN2712548Y - Abrasive nozzle for high-pressure water jet cutting machine - Google Patents
Abrasive nozzle for high-pressure water jet cutting machine Download PDFInfo
- Publication number
- CN2712548Y CN2712548Y CN 200420068217 CN200420068217U CN2712548Y CN 2712548 Y CN2712548 Y CN 2712548Y CN 200420068217 CN200420068217 CN 200420068217 CN 200420068217 U CN200420068217 U CN 200420068217U CN 2712548 Y CN2712548 Y CN 2712548Y
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- Prior art keywords
- jet
- abrasive
- nozzle
- pressure water
- cutting machine
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Abstract
The utility model discloses a high pressure water jet is abrasive material nozzle for cutting machine, it is by the inner tube of powder metallurgy sintered material preparation with inlay the overcoat that the cover reprocessing formed on the inner tube and constitute. The inner pipe is preferably a hard alloy inner pipe formed by hollow die drawing, and the outer sleeve is preferably made of non-metal materials such as plastics and nylon or metal materials such as steel and copper. The utility model discloses a nozzle hole surface finish Ra of abrasive nozzle is less than 1.6, and the concentricity deviation of hole and excircle only is 0.005mm, and hole circle the central axis's straightness accuracy deviation is less than 0.02mm, and wear resistance is good, low in cost, and the price is only 0.05 ~ 0.2 times of like product.
Description
Technical field
The utility model relates to the high-pressure water jet cutting technique, particularly the high-pressure water-jet cutting machine abrasive jet.
Background technology
The high-pressure water jet cutting technique is that usual pressure water is ejected from nozzle through the high pressure that booster adds to 150～380MPa again, the technology that the kinetic energy of dependence high-speed water jet cuts.It has advantages such as narrow, the no burr of joint-cutting, no thermal stress, no dust, the cutting of easy realization abnormity, for with traditional cutting method can't or unmanageable material, as composite, stone material, special glass, high hardness material etc., the high-pressure water jet cutting almost is unique economically viable method.For strengthening the cutting power of water jet, often after (operating) water nozzle, add abrasive material, this abrasive material is inhaled volume by high-speed water jet, and in abrasive jet, form mixture with water, be accelerated the back and from abrasive jet, eject the formation abradant jet, its cutting power is several times to tens times of pure water jet, therefore is widely applied to fields such as aviation, military project, nonferrous metallurgy, petrochemical industry, machinery, building materials and light industry.As everyone knows, abrasive material to be quickened to form abradant jet effectively, key is the concentricity that will guarantee abrasive jet and (operating) water nozzle endoporus, lower the cutting power of abrasive material greatly if decentraction will cause high-speed water jet to be ejected on the inwall of abrasive jet, this point adopts usually guarantees that the machining accuracy of abrasive jet and (operating) water nozzle installing hole realizes; In addition, the Concentricity tolerance that also requires abrasive jet endoporus and cylindrical is less than 0.01mm, and the linearity deviation of endoporus central axis is less than 0.05mm.The abrasive of high-pressure water-jet cutting machine nozzle 6 that uses mostly is the good single powder metallurgy sintered material of anti-wear performance at present, makes (as shown in Figure 3) as carbide alloy, and its processing technology is compression molding, sintering, repaiies endoporus, finish grindes cylindrical.But the diameter of bore of abrasive jet has only about 0.7～1.2mm, and draw ratio is 40～80, and the interior hole forming of nozzle is to adopt central plug in die press technology for forming, because the effect of charging external force, its helical form flexural deformation is unavoidable.After sintering is finished, eliminate this distortion and often will adopt expensive manufacturing process such as laser, electric spark.Simultaneously, because sintering produces distortion inevitably, the endoporus of nozzle and cylindrical concentricity be big (even can reach 0.3mm), must carry out grinding to foreign round with the endoporus location.Because the nozzle endoporus is little, the location clamping force is also less, and the grinding force of carbide alloy is bigger, can only carry out grinding with microfeed, thereby cause the process-cycle long, the cost height.At present, what the sale price of market of single abrasive jet was homemade is about 200～300 yuan, import be about 500～1300 yuan.
Summary of the invention
The purpose of this utility model is to overcome the defective of above-mentioned prior art, under the prerequisite that does not change abrasive jet wear-resistant surface material, provides a kind of abrasive jet of new construction, solves the expensive problem of abrasive jet.
The technical scheme of Cai Yonging is for achieving the above object: the structure of mosaic of pipe and overcoat in abrasive jet is designed to, it is to be fixed in the overcoat that is finish-machined to again on the outer wall of inner tube by the interior pipe that is used as the abrasive jet passage of powder metallurgy sintered material making and edge cover to constitute.
Pipe can guarantee the high-wearing feature of nozzle and the precision of endoporus, and cut down finished cost to adopt Guan Weijia in the carbide alloy that hollow die drawing system forms in of the present utility model.
Overcoat of the present utility model preferably adopts plastics, or nylon, or steel, or the overcoat of copper work, to reduce difficulty of processing, saves cost.
Advantage of the present utility model is the endoporus of abrasive jet and the concentricity height of cylindrical, and deviation only is 0.005mm; The surface smoothness Ra of nozzle endoporus is less than 1.6, the linearity height of endoporus central axis, and deviation is less than 0.02mm; Anti-wear performance is good, and is cheap, and price only is 0.05～0.2 times of like product.
Description of drawings
Fig. 1 is the utility model abrasive jet structure chart.
Fig. 2 is the installation site schematic diagram of the utility model abrasive jet and (operating) water nozzle.
Fig. 3 is the structure chart of prior art abrasive jet.
The specific embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
Abrasive jet of the present utility model is made up of interior pipe 1 and overcoat 2.Interior pipe 1 adopts powder metallurgy sintered material to make, such as carbide alloy, to guarantee its high-wear resistance.In pipe 1 can adopt the mold pressing of prior art after sintering technology make, but need carry out polishing processing to endoporus.For avoiding the endoporus bending that distortion brought of endoporus central authorities plug in die press technology for forming, interior pipe 1 preferably adopts hollow die drawing system technology to make when selecting for use carbide alloy to make, behind the sintering, the linearity deviation of endoporus central axis is less than 0.02mm, Ra is less than 1.6 for bore area fineness, can satisfy instructions for use fully, endoporus must not reprocessed, but the concentricity of the interior effective endoporus of making the abrasive jet passage and cylindrical is still bigger.Be the endoporus of assurance abrasive jet finished product and the concentricity requirement of cylindrical, overcoat 2 edges are enclosed within back reprocessing on the interior pipe 1, promptly directly internally do not manage 1 and carry out any processing of removing material, but after securely edge packaged overcoat 2, the endoporus with interior pipe 1 was that benchmark is processed overcoat 2 again.The material of overcoat 2 can adopt nonmetallic materials and metal materials such as steel, copper such as plastics, nylon, because overcoat 2 is not the such high hardness powder metallurgy agglomerated material of carbide alloy, so its processing is simple, with low cost, the yield rate height.The best processing sequence of the utility model is: inlay overcoat, finish turning cylindrical behind hollow die drawing system, the sintering.Installation situation of the present utility model as shown in Figure 2, water under high pressure 3 is by (operating) water nozzle 4 ejection at a high speed, interstitial area between (operating) water nozzle 4 and abrasive jet forms parital vacuum, abrasive material inhaled from abrasive material import 5 involve in and mix with water, water and abrasive material spray at a high speed from jet hole further mix fluidisation in the interior pipe 1 of abrasive jet after then, cut.
Claims (3)
1. a high-pressure water-jet cutting machine abrasive jet is characterized in that it is to be made of the overcoat (2) that interior pipe (1) and edge cover as the abrasive jet passage are fixed on interior pipe (1) outer wall.
2. high-pressure water-jet cutting machine abrasive jet according to claim 1 is characterized in that interior pipe (1) is to manage in the carbide alloy that hollow die drawing system forms.
3. high-pressure water-jet cutting machine abrasive jet according to claim 1 is characterized in that overcoat (2) is plastics, or nylon, or steel, or the overcoat of copper work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420068217 CN2712548Y (en) | 2004-07-23 | 2004-07-23 | Abrasive nozzle for high-pressure water jet cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420068217 CN2712548Y (en) | 2004-07-23 | 2004-07-23 | Abrasive nozzle for high-pressure water jet cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2712548Y true CN2712548Y (en) | 2005-07-27 |
Family
ID=34873722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420068217 Expired - Lifetime CN2712548Y (en) | 2004-07-23 | 2004-07-23 | Abrasive nozzle for high-pressure water jet cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2712548Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116479A (en) * | 2017-05-15 | 2017-09-01 | 四川大学 | Nozzle is combined for the numerical control wet chemical etch that optical element is processed |
| CN112661514A (en) * | 2021-01-08 | 2021-04-16 | 厦门钨业股份有限公司 | Preparation method and mold of water jet sand pipe for ultrahigh pressure water cutting |
-
2004
- 2004-07-23 CN CN 200420068217 patent/CN2712548Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116479A (en) * | 2017-05-15 | 2017-09-01 | 四川大学 | Nozzle is combined for the numerical control wet chemical etch that optical element is processed |
| CN107116479B (en) * | 2017-05-15 | 2018-11-20 | 四川大学 | Numerical control wet chemical etch for optical element processing combines nozzle |
| CN112661514A (en) * | 2021-01-08 | 2021-04-16 | 厦门钨业股份有限公司 | Preparation method and mold of water jet sand pipe for ultrahigh pressure water cutting |
| CN112661514B (en) * | 2021-01-08 | 2022-08-19 | 厦门钨业股份有限公司 | Preparation method and mold of water jet sand pipe for ultrahigh pressure water cutting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN NONFERROUS HEAVY MACHINERY CO., LTD. Free format text: FORMER OWNER: CHANGSHA MINE INST. Effective date: 20070713 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070713 Address after: 410013, Hunan Changsha high tech Development Zone torch city MO Group North five floor Patentee after: Hunan Nonferrous Heavy Machinery Co., Ltd. Address before: Yuelu District City, Hunan province 410012 Changsha Lushan Road No. 236 Patentee before: Changsha Mine Research Institute |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140723 Granted publication date: 20050727 |