CN103533737A - Cathode head of plasma spray gun - Google Patents
Cathode head of plasma spray gun Download PDFInfo
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- CN103533737A CN103533737A CN201310499587.0A CN201310499587A CN103533737A CN 103533737 A CN103533737 A CN 103533737A CN 201310499587 A CN201310499587 A CN 201310499587A CN 103533737 A CN103533737 A CN 103533737A
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- cathode head
- cathode taps
- main body
- cathode
- heat dissipation
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Abstract
The invention relates to a cathode head of a plasma spray gun, which comprises a cathode head main body, wherein a blind hole is formed in the center of the lower end part of the cathode head main body, reduces utilization of a material and heat gather in the cathode head, and increases the heat dissipation area of the cathode head; a chamfer is arranged on the external edge of the blind hole; an annular clamp groove is formed on the outer side of the lower part of the cathode head main body to facilitate fixing the cathode head; a conical surface is arranged at the middle upper part of the cathode head main body; and a circular table is arranged at the upper part of the conical surface. The cathode head has the advantages of reasonable structural design, stable working performance, good heat dissipation performance, long service life and the like; compared with a cathode head without a heat dissipation hole at the lower end part, the service life is prolonged by approximately 30%; since tungsten carbide and tungsten copper are used in the cathode head, the high-temperature resistance of the cathode head is improved; since the tungsten copper has good heat dissipation capability, so that heat gathered in the cathode head can be dissipated effectively; the service life of the cathode head is prolonged; and the influence of frequent cathode head replacement on the spray efficiency and spray quality is reduced.
Description
Technical field
The present invention relates to plasma torch technical field, specifically a kind of cathode taps of plasma torch.
Background technology
Plasma is called again electricity slurry, the ionized gas shape material that the positron-electron that the atom after being deprived of by portions of electronics and atomic group are ionized rear generation forms.Its conventional producing method is: anode head connects positive source, cathode taps connects power cathode, makes cathode taps contact with anode head during beginning, between the two logical direct current, when cathode taps and anode head slowly space out, the electronics of cathode taps transmitting produces ion torch by air breakdown.High-temperature plasma gas is from nozzle ejection, and volume expands rapidly, forms high temperature and high speed plasma jet.Due to plasma jet extreme temperatures, general cathode taps is easy to be burned, and changing prosaically cathode taps not only wastes time and energy, and more affects the spraying effect of plasma spraying.
Number of patent application is that 200710138379.2 cathode taps adopts the mode of logical cooling water to lower the temperature to cathode taps, yet this mode project organization is complicated, and cost is higher, and leans on the inner loop of cooling water cooling, and cooling effect is limited.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of cathode taps of plasma torch.
The present invention solves its technical problem and realizes by the following technical solutions:
A cathode taps for plasma torch, comprises cathode taps main body, and described cathode taps main body bottom central authorities are provided with blind hole, and blind hole has reduced the use of material, has reduced the gathering of heat in cathode taps, has increased the area of dissipation of cathode taps.The outward flange of described blind hole is provided with chamfering, and described cathode taps lower body part outside is provided with annular slot, so that fixed negative pole head.The middle and upper part of cathode taps main body is provided with taper seat, and described conical surface top is provided with round platform, and the design of taper seat and round platform is shunk the cross section on cathode taps top gradually, is conducive to plasma jet in the generation on cathode taps top and concentrates.Below the side of described taper seat, round platform, the upper bottom surface of round platform and taper seat, within the scope of 1 to 2 millimeter, be all inlaid with tungsten carbide, described cathode taps main body adopts Tungsten-copper Composites to make, the use of tungsten carbide and tungsten copper has improved the thermal endurance of cathode taps, has extended the life-span of cathode taps.
The invention has the beneficial effects as follows: the present invention has the advantages such as reasonable in design, stable work in work, perfect heat-dissipating, long service life, compares without the cathode taps of louvre with bottom, has extended 30% left and right useful life.Because cathode taps top studs with tungsten carbide, tungsten carbide has high fusing point and fabulous heat-resisting quantity, so when work, cathode taps outer surface is difficult for being gone out pit by the calcination of arc flame stream, strengthened the useful life of cathode taps, in addition, described cathode taps main body adopts Tungsten-copper Composites to make, and tungsten copper thermal diffusivity is good, high temperature resistant, can effectively the dissipation of heat being gathered in cathode taps be gone out, extend the useful life of cathode taps, reduce the frequent impact of cathode taps on spray efficiency and coating quality of changing.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is cutaway view of the present invention;
Fig. 2 is front view of the present invention;
Fig. 3 is vertical view of the present invention.
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 Figure 1, Figure 2, Figure 3 shows, a kind of cathode taps of plasma torch, comprises cathode taps main body 6, described cathode taps main body 6 bottom central authorities are provided with blind hole 1, blind hole 1 has reduced the use of material, has reduced the gathering of heat in cathode taps, has increased the area of dissipation of cathode taps.The outward flange of described blind hole 1 is provided with chamfering 2, and described cathode taps main body 6 lower outsides are provided with annular slot 3, so that fixed negative pole head.The middle and upper part of cathode taps main body 6 is provided with taper seat 4, and described taper seat 4 tops are provided with round platform 5, and the design of taper seat 4 and round platform 5 is shunk the cross section on cathode taps top gradually, is conducive to plasma jet in the generation on cathode taps top and concentrates.
Within the scope of 1 to 2 millimeter of the side of described taper seat 4, round platform 5, the upper bottom surface of round platform 5 and taper seat 4 below, be all inlaid with tungsten carbide, described cathode taps main body 6 adopts Tungsten-copper Composites to make, the use of tungsten carbide and tungsten copper has improved the thermal endurance of cathode taps, extend the life-span of cathode taps, reduced the frequent impact of cathode taps on spray efficiency and coating quality of changing.
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 specification, 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 cathode taps for plasma torch, comprises cathode taps main body, it is characterized in that: described cathode taps main body bottom central authorities are provided with blind hole; The outward flange of described blind hole is provided with chamfering; Described cathode taps lower body part outside is provided with annular slot, and the middle and upper part of cathode taps main body is provided with taper seat; Described conical surface top is provided with circular cone.
2. the cathode taps of a kind of plasma torch according to claim 1, is characterized in that: below the side of described taper seat, round platform, the upper bottom surface of round platform and taper seat, within the scope of 1 to 2 millimeter, be all inlaid with tungsten carbide; Described cathode taps main body adopts Tungsten-copper Composites to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310499587.0A CN103533737A (en) | 2013-10-21 | 2013-10-21 | Cathode head of plasma spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310499587.0A CN103533737A (en) | 2013-10-21 | 2013-10-21 | Cathode head of plasma spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103533737A true CN103533737A (en) | 2014-01-22 |
Family
ID=49935304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310499587.0A Pending CN103533737A (en) | 2013-10-21 | 2013-10-21 | Cathode head of plasma spray gun |
Country Status (1)
| Country | Link |
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| CN (1) | CN103533737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050458A (en) * | 2019-12-09 | 2020-04-21 | 重庆大学 | Direct current arc cathode head with inner hole having micro-rib structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2199272A5 (en) * | 1972-09-07 | 1974-04-05 | Siemens Ag | |
| CN87103361A (en) * | 1986-05-06 | 1988-06-29 | 珀金-埃尔默公司 | The gas distribution ring that is used for plasma gun |
| CN1134217A (en) * | 1993-11-02 | 1996-10-23 | 株式会社小松制作所 | Plasma torch |
| CN1775453A (en) * | 2005-11-30 | 2006-05-24 | 陈铮 | Copper alloy electrode for resistance weld and its manufacturing method |
| CN2790102Y (en) * | 2005-01-28 | 2006-06-21 | 周国清 | Discharging device for plasma cutting torch |
| CN102601677A (en) * | 2012-03-30 | 2012-07-25 | 大连理工大学 | Atmospheric cold plasma jet auxiliary cutting method |
| CN103277231A (en) * | 2013-03-18 | 2013-09-04 | 中国人民解放军空军工程大学 | Aero-engine air rotational flow plasma igniter |
-
2013
- 2013-10-21 CN CN201310499587.0A patent/CN103533737A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2199272A5 (en) * | 1972-09-07 | 1974-04-05 | Siemens Ag | |
| CN87103361A (en) * | 1986-05-06 | 1988-06-29 | 珀金-埃尔默公司 | The gas distribution ring that is used for plasma gun |
| CN1134217A (en) * | 1993-11-02 | 1996-10-23 | 株式会社小松制作所 | Plasma torch |
| CN2790102Y (en) * | 2005-01-28 | 2006-06-21 | 周国清 | Discharging device for plasma cutting torch |
| CN1775453A (en) * | 2005-11-30 | 2006-05-24 | 陈铮 | Copper alloy electrode for resistance weld and its manufacturing method |
| CN102601677A (en) * | 2012-03-30 | 2012-07-25 | 大连理工大学 | Atmospheric cold plasma jet auxiliary cutting method |
| CN103277231A (en) * | 2013-03-18 | 2013-09-04 | 中国人民解放军空军工程大学 | Aero-engine air rotational flow plasma igniter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050458A (en) * | 2019-12-09 | 2020-04-21 | 重庆大学 | Direct current arc cathode head with inner hole having micro-rib structure |
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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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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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Application publication date: 20140122 |