CN2276240Y - Internal powder conveying combined spray nozzle for plasma arc powder spray welding gun - Google Patents
Internal powder conveying combined spray nozzle for plasma arc powder spray welding gun Download PDFInfo
- Publication number
- CN2276240Y CN2276240Y CN 96236467 CN96236467U CN2276240Y CN 2276240 Y CN2276240 Y CN 2276240Y CN 96236467 CN96236467 CN 96236467 CN 96236467 U CN96236467 U CN 96236467U CN 2276240 Y CN2276240 Y CN 2276240Y
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- CN
- China
- Prior art keywords
- nozzle
- plasma arc
- convex shoulder
- powder
- duct
- 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.)
- Expired - Fee Related
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- Plasma Technology (AREA)
- Arc Welding In General (AREA)
Abstract
The utility model relates to an inward power conveying combined nozzle for a plasma arc spray welding gun, which comprises an inner nozzle, an outer water sleeve, two water inflow and outflow pipes, and two symmetrical powder conveying pipes. All the components are welded into a whole piece by using silver solder; a stair-shaped hole canal is arranged on the center of the inner nozzle; a convex shoulder is arranged on the outside of the inner nozzle; two oblique cylindrical through holes which have a certain included angle between the axial lines are arranged symmetrically on the convex shoulder; two circular holes which are communicated with blind holes are arranged on the convex shoulder; the connection parts between the components are designed on the outer surface of the combined nozzle. Thus, the reachability of weld seams is good; the operation of welding is convenient; in addition, the inner nozzle has a simple structural design and can be processed conveniently by using a machine.
Description
The utility model belongs to the operation welding technology field, further relates to the plasma arc dust gun and makes up nozzle with internal powder conveying.
The plasma arc powder spray gun is to produce the high temperature compressed plasma-arc of powder surfacing with internal powder conveying combination nozzle; Carry the surfacing alloy powder to plasma arc flame stream center heat fused with the melted alloy powder is sprayed onto the critical component of surface of the work to be welded from the compression duct of making up nozzle.Internal powder conveying combination nozzle also is a consumable accessory in the plasma arc powder spray gun.The nozzle of processing with internal powder conveying combination nozzle drawing (in January, 1981) according to the plasma arc powder spray gun of using in second petrolem machinery factory, Shanghai and the production of Xi'an auto parts machinery one factory is used for surfacing, find that this nozzle depositing that to chew structure in the vital part one in (1) internal powder conveying combination nozzle too complicated, mechanical processing difficulty is big; (2) all adopt silver brazing to be connected between each part of internal powder conveying combination nozzle.Because it is unreasonable to chew structural design in the vital part, make it with the attachment weld of powder feeding pipe (one of combination nozzle component parts) not at the outer surface that makes up nozzle, cause the accessibility of weld seam poor.When soldering, very easily produce pore and pricker closes bad defective, influence normal surfacing process from the outside seepage cooling water of fault location thereby cause making up nozzle.
The purpose of this utility model is to treating that the ion powder spray gun provides a kind of simple in structure, is easy to machining; The attachment weld accessibility is good between each part of combination nozzle, is convenient to silver soldering; Send the combination nozzle in service-strong is novel.
The utility model comprises the powder feeding pipe of a Nei Zui, an outer water jacket, two water inlet pipe and water outlet pipes and two symmetries.The Nei Zui center is provided with a stairstepping duct, in chew the outside and be provided with a convex shoulder, symmetry has two cylindrical oblique through holes that form an angle between axis on the convex shoulder, and the downside of convex shoulder is avoided oblique lead to the hole site and had two blind holes, also has two circular holes that communicate with blind hole on the convex shoulder.
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is an overall structure schematic diagram of the present utility model.
Figure is a vertical view of the present utility model.
Fig. 3 chews structural representation in of the present utility model.
The plasma arc powder spray gun with novel internal powder conveying combination nozzle with silver brazing with a Nei Zui, an outer water jacket, two powder feeding pipe and two water inlet pipe and water outlet pipe 2 solderings at a composition, thereby it has the characteristics of composite structure.
Most important part chews 3 in being in the internal powder conveying combination nozzle.Its top is processed with external screw thread, and the lower gun body in it and the plasma arc powder spray gun is fused.In 3 centers of chewing be a stepped bore road.Top, duct is cylindrical ion air chamber.Next being that an inverted drift angle is 60 ° a truncated cone-shaped ion air compressor air chamber, next is a narrow duct of minor diameter again.The outlet of stepped bore road then is a tubaeform circular hole road.Its medium-small diameter narrowed aperture road b and the 9 common plasma arc compression ducts of forming, tubaeform duct.Surfacing electric arc passes through from the compressor duct, and the arc column of the electric arc constraint in duct by compression can't be expanded arbitrarily, makes the arc column diameter form high-temperature plasma electric arc less than the compression channel diameter.In interior 9 the outside of chewing a convex shoulder is arranged.Symmetry has two cylindrical oblique through holes 11 that axis becomes 90 °～120 ° of angles on convex shoulder, as the powder feeding passage of carrying the surfacing alloy powder to plasma arc flame stream center.The outlet of the oblique through hole 11 of opening is positioned on the inwall of chewing tubaeform duct 9.Two oblique through-bore axis with in chew stairstepping duct center line intersection point be arranged in tubaeform duct 9, to guarantee that the surfacing alloy powder can be transported to arc flame stream center symmetrically and realize chewing internal powder conveying.Chew the position that the convex shoulder downside is avoided oblique through hole interior, have two crescent blind 10.In addition, on convex shoulder, also have two circular holes that communicate with crescent blind hole 10, as the intake-outlet of cooling water.The external diameter of outer water jacket with in to chew the external diameter of convex shoulder identical, chew 3 bottom in it is enclosed within.Outer water jacket and in chew between two parts and to constitute an annular water flowing cavity 8.The water flowing cavity with in chew that two crescent blind holes 10 of 3 convex shoulders are common to constitute combination nozzle cooling water flow circulation passage.In being inserted in, two powder feeding pipe 7 chew oblique through hole import department on the convex shoulder.In being inserted in, chew two 2 of water inlet pipe and water outlet pipes the oral area of flow hole on the convex shoulder.Silver brazing is all adopted in connection between each part.
Because the utility model internal powder conveying combination nozzle all designs the junction between each part at the outer surface that makes up nozzle, the accessibility of weld seam is good, makes silver brazing easy to operate, has avoided soldering pore and pricker to close bad defective fully.In addition because strength member in the novel internal powder conveying combination nozzle-in the structural design of the powder feeding passage chewed and cooling water flow circulation passage simple, make very convenient that the machining of all parts of nozzle becomes.
Claims (4)
1, the plasma arc powder spray gun makes up nozzle with internal powder conveying, the powder feeding pipe that comprises a Nei Zui, an outer water jacket, two water inlet pipe and water outlet pipes and two symmetries, it is characterized in that: described Nei Zui center is provided with a stairstepping duct, in chew the outside and be provided with a convex shoulder, symmetry has two cylindrical oblique through holes that form an angle between axis on the convex shoulder, and the downside of convex shoulder is avoided lead to the hole site and had two circular holes that communicate with blind hole.
2, plasma arc powder spray gun according to claim 1 makes up nozzle with internal powder conveying, it is characterized in that: angle is 90 °～120 ° between described oblique through-bore axis.
3, plasma arc powder spray gun according to claim 1 makes up nozzle with internal powder conveying, it is characterized in that: the outlet of described oblique through hole is positioned on the tubaeform duct inwall of chewing the stairstepping duct, the axis of two oblique through holes with in chew stairstepping duct center line intersection point be positioned among the loudspeaker duct.
4, plasma arc powder spray gun according to claim 1 makes up nozzle with internal powder conveying, it is characterized in that: described blind hole is split into crescent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96236467 CN2276240Y (en) | 1996-12-04 | 1996-12-04 | Internal powder conveying combined spray nozzle for plasma arc powder spray welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96236467 CN2276240Y (en) | 1996-12-04 | 1996-12-04 | Internal powder conveying combined spray nozzle for plasma arc powder spray welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2276240Y true CN2276240Y (en) | 1998-03-11 |
Family
ID=33912285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96236467 Expired - Fee Related CN2276240Y (en) | 1996-12-04 | 1996-12-04 | Internal powder conveying combined spray nozzle for plasma arc powder spray welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2276240Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805902A (en) * | 2010-03-09 | 2010-08-18 | 河南省煤科院耐磨技术有限公司 | Handheld air-cooled plasma torch |
| CN102489847A (en) * | 2011-11-24 | 2012-06-13 | 重庆理工大学 | Automatic paraxial powder feeding welding gun for alloy powder filling argon tungsten-arc welding |
| CN103533738A (en) * | 2013-10-21 | 2014-01-22 | 芜湖鼎恒材料技术有限公司 | Nozzle of plasma spray gun |
| CN103563491A (en) * | 2011-03-25 | 2014-02-05 | 伊利诺斯工具制品有限公司 | Plasma torch systems having improved plasma nozzles |
| CN105376923A (en) * | 2015-11-12 | 2016-03-02 | 华中科技大学 | Atom generator capable of improving atomic beam density |
| CN105430864A (en) * | 2015-11-12 | 2016-03-23 | 华中科技大学 | Atom generator |
| CN107971607A (en) * | 2017-12-28 | 2018-05-01 | 大连威尔博合金科技有限公司 | A kind of metal dust and ceramic powders mixing build-up welding apparatus |
| CN112676684A (en) * | 2020-12-30 | 2021-04-20 | 佛山科学技术学院 | Nozzle of plasma spray welding gun |
-
1996
- 1996-12-04 CN CN 96236467 patent/CN2276240Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805902A (en) * | 2010-03-09 | 2010-08-18 | 河南省煤科院耐磨技术有限公司 | Handheld air-cooled plasma torch |
| CN101805902B (en) * | 2010-03-09 | 2011-09-07 | 河南省煤科院耐磨技术有限公司 | Handheld air-cooled plasma torch |
| CN103563491A (en) * | 2011-03-25 | 2014-02-05 | 伊利诺斯工具制品有限公司 | Plasma torch systems having improved plasma nozzles |
| US11160156B2 (en) | 2011-03-25 | 2021-10-26 | Illinois Tool Works Inc. | Plasma torch systems having improved plasma nozzles |
| CN102489847A (en) * | 2011-11-24 | 2012-06-13 | 重庆理工大学 | Automatic paraxial powder feeding welding gun for alloy powder filling argon tungsten-arc welding |
| CN103533738A (en) * | 2013-10-21 | 2014-01-22 | 芜湖鼎恒材料技术有限公司 | Nozzle of plasma spray gun |
| CN105376923A (en) * | 2015-11-12 | 2016-03-02 | 华中科技大学 | Atom generator capable of improving atomic beam density |
| CN105430864A (en) * | 2015-11-12 | 2016-03-23 | 华中科技大学 | Atom generator |
| CN105430864B (en) * | 2015-11-12 | 2017-12-12 | 华中科技大学 | A kind of atomic generator |
| CN107971607A (en) * | 2017-12-28 | 2018-05-01 | 大连威尔博合金科技有限公司 | A kind of metal dust and ceramic powders mixing build-up welding apparatus |
| CN112676684A (en) * | 2020-12-30 | 2021-04-20 | 佛山科学技术学院 | Nozzle of plasma spray welding gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |