CN103537388A - Long-life spray gun powder feeding tube - Google Patents
Long-life spray gun powder feeding tube Download PDFInfo
- Publication number
- CN103537388A CN103537388A CN201310496955.6A CN201310496955A CN103537388A CN 103537388 A CN103537388 A CN 103537388A CN 201310496955 A CN201310496955 A CN 201310496955A CN 103537388 A CN103537388 A CN 103537388A
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- China
- Prior art keywords
- powder feeding
- feeding tube
- feeding pipe
- main body
- spray gun
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
- B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
- B05B7/226—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc the material being originally a particulate material
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Coating By Spraying Or Casting (AREA)
- Nozzles (AREA)
Abstract
The invention relates to a long-life spray gun powder feeding tube comprising a powder feeding tube. The center of the powder feeding tube is provided with an axial feeding hole, and the lower end face of the powder feeding tube is provided with a material inlet in a conical shape; the conical material inlet increases the exposed area of the material inlet, material can be fed conveniently, the upper portion of the material port is communicated with the feeding hole, and the lower portion of the powder feeding tube is a feeding end; the lower portion of the feeding end is provided with an annular clamping groove used for fixing the feeding end, the center of the feeding end is a hexagonal prism outer surface, and the upper portion of the feeding end is provided with outer threads; the center of the powder feeding tube is a supporting rod, and the upper portion of the powder feeding tube is a spraying head; a hollow prism is embedded at the center of the spraying head. The long-life spray gun powder feeding tube adopts tungsten carbide, tungsten copper and nickel-chrome alloy steel, high temperature resistance of the powder feeding tube is improved effectively, the radiating area of the powder feeding tube is increased through the hollow prism inserted in the center of the powder feeding tube, the life of the powder feeding tube is prolonged, influences on spraying quality due to frequent power feeding tube change are avoided, and spraying efficiency is improved.
Description
Technical field
The present invention relates to electric arc spraying processing technique field, specifically a kind of long-life spray gun powder feeding pipe.
Background technology
Deng particle spraying, utilize plasma arc to carry out, ion arc is compression arc, compares with free electric arc, and its arc column is thin, and current density is large, and gas ionization degree is high, therefore has temperature high, concentration of energy, the feature such as arc stbility is good.Yet plasma arc temperature is high, the characteristic of concentration of energy is also to spray gun, and especially powder feeding pipes has proposed extremely resistant to elevated temperatures requirement.Traditional powder feeding pipe adopts common steel alloy or resistant to elevated temperatures material, utilizes integrated form to make, yet common steel alloy resistance to elevated temperatures is poor, and the life-span is short, and pin portion is easily burnt by high temperature or is oxidized; Exotic material manufacturing cost is high, is difficult to popularize.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of long-life spray gun powder feeding pipe.
The present invention solves its technical problem and realizes by the following technical solutions:
A spray gun powder feeding pipe, comprises powder feeding pipe main body, and the central authorities of described powder feeding pipe main body are provided with axial feedhole, and powder feeding pipe main body lower surface is provided with charge door; Described charge door is taper, and the charge door of taper has increased the exposed area of charge door, has facilitated and has fed in raw material, and charge door top communicates with feedhole, and powder feeding pipe lower body part is feed end; Described feed end bottom is provided with annular slot, and annular slot is used for fixedly feed end, and feed end middle part is six prism outer surfaces, and feed end top is provided with external screw thread; Described powder feeding pipe main body middle part is support bar, and the top of described powder feeding pipe main body is injector head, and the diameter of injector head is less approximately 1 to 2 millimeters than the diameter of support bar; Described injector head middle part is inlaid with hollow prism.
Described injector head adopts tungsten carbide to make, and tungsten carbide fusing point is high, high temperature resistant, has strengthened the serviceability of injector head; Described hollow prism adopts tungsten copper to make, and tungsten copper is high temperature resistant, and thermal diffusivity is good, and manufacturing cost is low compared with tungsten carbide, is not reducing under the prerequisite of injector head serviceability, has improved the heat dispersion of injector head, has reduced the manufacturing cost of injector head; Described powder feeding pipe main body adopts nickel-chrome alloy steel to make, and nichrome stiffness is good, good corrosion resistance, good heat resistance, guaranteed feed end in reinforced process not by strong wear.
The invention has the beneficial effects as follows: the present invention adopts the tungsten carbide material that fusing point is high, can effectively improve the heat-resisting quantity of powder feeding pipe, the hollow prism inserting at the middle part of powder feeding pipe has not only increased the area of dissipation of powder feeding pipe, reduced the use cost of tungsten carbide material, and because copper has good thermal conductivity, so the hollow prism that adopts Tungsten-copper Composites to make can also conduct the heat that to remain in tungsten carbide in time, the cooling of help powder feeding pipe, extend the service life of powder feeding pipe, avoided the impact of frequent replacing powder feeding pipe on coating quality, improved the efficiency of spraying.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is front view of the present invention;
Fig. 2 is cutaway view of the present invention;
Fig. 3 is top view of the present invention;
Fig. 4 is upward view of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figures 1 to 4, a kind of long-life spray gun powder feeding pipe, comprises powder feeding pipe main body 5, and the central authorities of described powder feeding pipe main body 5 are provided with axial feedhole 8, and powder feeding pipe main body 5 lower surfaces are provided with charge door 1; Described charge door 1 is taper, the charge door 1 of taper has increased the exposed area of charge door 1, facilitated reinforced, the top of charge door 1 communicates with feedhole 8, the bottom of powder feeding pipe main body 5 is feed end, and during work, powder enters from feed end, from injector head 6 ejections, because powder is to be accompanied by plasma arc process from powder feeding pipe under the state of melting, so the temperature of powder feeding pipe can sharply raise; The bottom of described feed end is provided with annular slot 2, and annular slot 2 is for fixing feed end, and the middle part of feed end is provided with six prism outer surfaces 3, and the top of feed end is provided with external screw thread 4; The middle part of described powder feeding pipe main body 5 is support bar 9, and the top of described powder feeding pipe main body 5 is injector head 6, and the diameter of injector head 6 is less approximately 1 to 2 millimeters than the diameter of support bar 9; Described injector head 6 middle parts are inserted with hollow prism 7.
Described injector head 6 adopts tungsten carbide to make, and tungsten carbide fusing point is high, high temperature resistant, has strengthened the serviceability of injector head 6; Described hollow prism 7 adopts tungsten copper to make, and tungsten copper is high temperature resistant, and thermal diffusivity is good, and manufacturing cost is low compared with tungsten carbide, is not reducing under the prerequisite of powder feeding pipe 5 serviceabilities, has improved the heat dispersion of injector head, has reduced the manufacturing cost of powder feeding pipe 5; Described powder feeding pipe main body 5 adopts nickel-chrome alloy steels to make, and nichrome stiffness is good, good corrosion resistance, good heat resistance, guaranteed feed end in reinforced process not by strong wear.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. a long-life spray gun powder feeding pipe, comprises powder feeding pipe main body, it is characterized in that: the central authorities of described powder feeding pipe main body are provided with axial feedhole, and powder feeding pipe main body lower surface is provided with charge door; Described charge door is taper, and charge door top communicates with feedhole, and powder feeding pipe lower body part is feed end; Described feed end lower outside is provided with annular slot, and feed end middle part is provided with six prism outer surfaces, and feed end top is provided with external screw thread; Described powder feeding pipe main body middle part is support bar; Described powder feeding pipe main body top is injector head, and the diameter of injector head is less approximately 1 to 2 millimeters than the diameter of support bar; Described injector head middle part is inlaid with hollow prism.
2. a kind of long-life spray gun powder feeding pipe according to claim 1, is characterized in that: described injector head adopts tungsten carbide to make; Described hollow prism adopts tungsten copper to make; Described powder feeding pipe main body adopts nickel-chrome alloy steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310496955.6A CN103537388B (en) | 2013-10-21 | 2013-10-21 | A kind of spray gun powder conveying pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310496955.6A CN103537388B (en) | 2013-10-21 | 2013-10-21 | A kind of spray gun powder conveying pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103537388A true CN103537388A (en) | 2014-01-29 |
| CN103537388B CN103537388B (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310496955.6A Active CN103537388B (en) | 2013-10-21 | 2013-10-21 | A kind of spray gun powder conveying pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN103537388B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893985A (en) * | 1997-03-14 | 1999-04-13 | The Lincoln Electric Company | Plasma arc torch |
| CN1448223A (en) * | 2003-04-28 | 2003-10-15 | 西安交通大学 | Hollow cathode central axial powder-feeding plasma spraying gun |
| CN1481939A (en) * | 2002-09-12 | 2004-03-17 | 中国科学院力学研究所 | Fistular cathodic axial powder feeding plasma painting gun |
| CN201404887Y (en) * | 2009-05-18 | 2010-02-17 | 常州兆邦液压成套设备有限公司 | Powder-feeding nozzle of ceramic spray gun |
| CN101912831A (en) * | 2010-08-17 | 2010-12-15 | 陈志刚 | Multifunctional shower nozzle |
-
2013
- 2013-10-21 CN CN201310496955.6A patent/CN103537388B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893985A (en) * | 1997-03-14 | 1999-04-13 | The Lincoln Electric Company | Plasma arc torch |
| CN1481939A (en) * | 2002-09-12 | 2004-03-17 | 中国科学院力学研究所 | Fistular cathodic axial powder feeding plasma painting gun |
| CN1448223A (en) * | 2003-04-28 | 2003-10-15 | 西安交通大学 | Hollow cathode central axial powder-feeding plasma spraying gun |
| CN201404887Y (en) * | 2009-05-18 | 2010-02-17 | 常州兆邦液压成套设备有限公司 | Powder-feeding nozzle of ceramic spray gun |
| CN101912831A (en) * | 2010-08-17 | 2010-12-15 | 陈志刚 | Multifunctional shower nozzle |
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| Publication number | Publication date |
|---|---|
| CN103537388B (en) | 2016-06-08 |
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| ASS | Succession or assignment of patent right |
Owner name: WUHU DINGHAN REMANUFACTURING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WUHU DINGHENG MATERIAL TECHNOLOGY CO., LTD. Effective date: 20150828 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20150828 Address after: 241000 Anhui City, Yijiang Province, Wuhu national hi tech Zone in the Southern District Science and Technology Park (SME Venture Park) Venture Park, building 9, comprehensive Applicant after: WUHU DINGHAN REMANUFACTURING TECHNOLOGY CO., LTD. Address before: 241000 Wuhu high tech Industrial Development Zone in Southern District of small and medium enterprises in the park, building No. 11, Anhui Applicant before: Wuhu Dingheng Materials Technology Co., Ltd. |
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