JPS632231Y2 - - Google Patents
Info
- Publication number
- JPS632231Y2 JPS632231Y2 JP1981020187U JP2018781U JPS632231Y2 JP S632231 Y2 JPS632231 Y2 JP S632231Y2 JP 1981020187 U JP1981020187 U JP 1981020187U JP 2018781 U JP2018781 U JP 2018781U JP S632231 Y2 JPS632231 Y2 JP S632231Y2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- gap
- cap
- plasma
- torch
- 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
Links
Landscapes
- Arc Welding In General (AREA)
Description
【考案の詳細な説明】
本考案はプラズマトーチにかゝわり、特にプラ
ズマ切削加工トーチの改良に関するものである。[Detailed Description of the Invention] The present invention relates to a plasma torch, and particularly relates to an improvement of a plasma cutting torch.
従来高温高速のプラズマ炎のアーク流を利用し
て加工材を物理的に融断飛散させるプラズマ切断
が知られているが、プラズマ切断法は、被切断材
が導電性であることを要するが、高温高電流密度
のプラズマ流が容易に得られ、熱効率が高く、切
断能力も高く、金属材料の溶断に適している。 Conventionally, plasma cutting is known, which uses the arc flow of a high-temperature, high-velocity plasma flame to physically melt and scatter the workpiece, but plasma cutting requires that the workpiece be electrically conductive. It can easily generate a high-temperature, high-current-density plasma flow, has high thermal efficiency, and has high cutting ability, making it suitable for cutting metal materials.
プラズマトーチはアークを発生する電極とアー
クの径を絞るノズルの冷却機構を有するが経験に
よると冷却効率の差異によりこれら電極、ノズル
の消耗度に大きく影響を与えるものである。特に
水冷タイプはトーチの構造上、ノズル先端まで十
分冷却できず、ノズルの寿命が短かく、又切断精
度にばらつきを生じ、実作業上ノズルの取替回数
が多く、また事前にノズル寿命を予知できない問
題があつた。 A plasma torch has a cooling mechanism for the electrode that generates the arc and the nozzle that narrows the diameter of the arc, but experience shows that differences in cooling efficiency greatly affect the degree of wear of these electrodes and nozzles. In particular, the water-cooled type cannot cool down to the tip of the nozzle sufficiently due to the structure of the torch, resulting in short nozzle life, uneven cutting accuracy, and the need to replace the nozzle many times during actual work.Also, the nozzle life can be predicted in advance. There was a problem that I couldn't solve.
本考案は、これらの問題を解決するよう完成さ
れたものであつて、プラズマトーチの冷却効率を
向上してノズル寿命を飛躍的に延長し、ノズルの
取替作業回数を少なくするとともに、プラズマア
ーク径が一定で、安定した切削加工を得るプラズ
マトーチを提供するものである。 The present invention was completed to solve these problems, and it improves the cooling efficiency of the plasma torch, dramatically extends the nozzle life, reduces the number of nozzle replacements, and The present invention provides a plasma torch that has a constant diameter and provides stable cutting.
以下本考案を図面について詳述する。 The present invention will be described in detail below with reference to the drawings.
第１図は本考案の部分断面説明図、第２図は本
考案のキヤツプの背面説明図である。 FIG. 1 is a partially sectional explanatory view of the present invention, and FIG. 2 is an explanatory rear view of the cap of the present invention.
図において円筒状ノズル架台１にノズル２がＯ
リング１０を介して固定されている。ノズル２は
中空円錐状に形成されて、電極７を内設しており
電極７はノズル孔８に指向してガス空隙部１２を
形成する。又電極７は水冷却のための冷却管（図
示せず）を設けている。 In the figure, the nozzle 2 is mounted on the cylindrical nozzle stand 1.
It is fixed via a ring 10. The nozzle 2 is formed in the shape of a hollow cone and has an electrode 7 therein, and the electrode 7 is oriented toward the nozzle hole 8 to form a gas gap 12 . The electrode 7 is also provided with a cooling pipe (not shown) for water cooling.
前記ノズル２にはキヤツプ３がすき間１３を介
在するように外装されて基台９にＯリング１１を
介して着脱可能に設けられ、キヤツプ先端はノズ
ル２に密に接して冷却水往路５と冷却水帰路６を
介設する。 A cap 3 is externally mounted on the nozzle 2 with a gap 13 in between, and is removably attached to the base 9 via an O-ring 11. A water return path 6 is provided.
本考案のプラズマトーチのキヤツプ３はその内
側面のトーチ軸方向に複数条の冷却水整流用セパ
レータ４を設けている。キヤツプ３は着脱可能で
あるので、セパレータ４はキヤツプ３の固着状態
で、ノズル２に密着することが望ましい。かくて
キヤツプ３とノズル２のすき間を完全にトーチの
軸方向に遮断する。このためセパレータ４の材質
はゴム糸が良い。 The plasma torch cap 3 of the present invention has a plurality of cooling water rectifying separators 4 provided on its inner surface in the direction of the torch axis. Since the cap 3 is removable, it is desirable that the separator 4 be in close contact with the nozzle 2 while the cap 3 is fixed. In this way, the gap between the cap 3 and the nozzle 2 is completely blocked in the axial direction of the torch. For this reason, the material of the separator 4 is preferably rubber thread.
又セパレータの役割から複数条設けるが、第２
図に示すように４条にすることにより、キヤツプ
３のセツト位置がどの位置であつても冷却水を先
端に誘導することが可能となる。 Also, because of the role of separators, multiple strips are provided, but the second
By having four strips as shown in the figure, it becomes possible to guide the cooling water to the tip no matter where the cap 3 is set.
第３図は第１図のＢ−B′矢視図、第４図は第
１図のＡ−A′矢視図である。図にみるように、
冷却水往路５及び帰路６はすき間１３に開口して
冷却水路を形成している。 3 is a view taken along the line B-B' in FIG. 1, and FIG. 4 is a view taken along the line A-A' in FIG. As shown in the figure,
The cooling water outward path 5 and the return path 6 open into the gap 13 to form a cooling water channel.
更に本考案では、前述の通りキヤツプ３の内側
面のトーチ軸方向に複数条のセパレータ４を設
け、すき間１３をトーチの軸方向に遮断してい
る。 Further, in the present invention, as described above, a plurality of separators 4 are provided on the inner surface of the cap 3 in the direction of the torch axis to block the gap 13 in the direction of the torch axis.
このため、冷却水は、冷却水往路５よりセパレ
ータ８により分割されたすき間１３を通り、ノズ
ル２の先端まで整流誘導され、冷却水復路６に戻
る。 Therefore, the cooling water is rectified and guided from the cooling water outward path 5 through the gap 13 divided by the separator 8 to the tip of the nozzle 2, and then returns to the cooling water return path 6.
本考案の構成は以上の通りであるが、本考案に
よるとプラズマトーチの形状に関係なく、トーチ
の基部に供給された冷却水はノズルとキヤツプと
のすき間をセパレータの整流作用をうけて、ノズ
ル先端部を循環して高効率の冷却を行なうことが
できる。 The configuration of the present invention is as described above.According to the present invention, regardless of the shape of the plasma torch, the cooling water supplied to the base of the torch is rectified by the separator in the gap between the nozzle and the cap, and the cooling water flows through the nozzle. Highly efficient cooling can be achieved by circulating the tip.
実験によると従来法によると600カツトでノズ
ル交換を必要としたが、本考案例によると900カ
ツト以上の連続切断操業が可能である。 According to experiments, with the conventional method, the nozzle had to be replaced after 600 cuts, but with the present invention, continuous cutting operation of 900 cuts or more is possible.
以上本考案を主としてプラズマアーク切断につ
いて説明したが、プラズマジエツト切断のトーチ
にも勿論本考案は適用可能であり、又プラズマ溶
射、プラズマ溶接におけるプラズマガンに適用す
ることも本考案の範囲を逸脱するものではない。 Although the present invention has been mainly explained above regarding plasma arc cutting, it is of course applicable to plasma jet cutting torches, and application to plasma guns for plasma spraying and plasma welding is beyond the scope of the present invention. It's not something you do.
第１図は本考案の部分断面説明図、第２図は本
考案の部分背面図、第３図は第１図のＢ−B′矢
視断面図、第４図は第１図のＡ−A′矢視断面図
である。
１；円筒状ノズル架台、２；ノズル、３；キヤ
ツプ、４；セパレータ、５；冷却水往路、６；冷
却水帰路、７；電極、８；ノズル孔、１２；ガス
空隙部。
Fig. 1 is a partial cross-sectional explanatory diagram of the present invention, Fig. 2 is a partial rear view of the present invention, Fig. 3 is a sectional view taken along the line B-B' in Fig. 1, and Fig. 4 is a -A-- It is a sectional view taken along arrow A'. 1: Cylindrical nozzle mount, 2: Nozzle, 3: Cap, 4: Separator, 5: Cooling water outward path, 6: Cooling water return path, 7: Electrode, 8: Nozzle hole, 12: Gas cavity.
Claims (1)
電極を内設してガス空隙部を形成し、ノズル架台
の外周に冷却管を設け、ノズルにキヤツプを外装
してすき間を設け、該すき間に前記冷却管を開口
して冷却水路を形成し、キヤツプの内側にノズル
に密着するすじ条のセパレータをトーチ軸方向に
複数条固着して、前記すき間を軸方向に遮断した
ことを特徴とするプラズマトーチ。 A nozzle is fixed to a cylindrical nozzle mount, an electrode is placed inside the nozzle to form a gas gap, a cooling pipe is provided around the outer periphery of the nozzle mount, a cap is provided on the nozzle to provide a gap, and the gap is filled with the gas gap. A plasma torch characterized in that a cooling channel is formed by opening a cooling pipe, and a plurality of striped separators are fixed in the axial direction of the torch to the inside of the cap so that the separator is in close contact with the nozzle, thereby blocking the gap in the axial direction. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981020187U JPS632231Y2 (en) | 1981-02-17 | 1981-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981020187U JPS632231Y2 (en) | 1981-02-17 | 1981-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57136582U JPS57136582U (en) | 1982-08-26 |
| JPS632231Y2 true JPS632231Y2 (en) | 1988-01-20 |
Family
ID=29818106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981020187U Expired JPS632231Y2 (en) | 1981-02-17 | 1981-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS632231Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215524U (en) * | 1975-07-21 | 1977-02-03 |
-
1981
- 1981-02-17 JP JP1981020187U patent/JPS632231Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57136582U (en) | 1982-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5756959A (en) | Coolant tube for use in a liquid-cooled electrode disposed in a plasma arc torch | |
| US4055741A (en) | Plasma arc torch | |
| US5660743A (en) | Plasma arc torch having water injection nozzle assembly | |
| CA2174317C (en) | Plasma torch | |
| US3858072A (en) | Plasma torch with axial supply of the stabilizing gas | |
| US5416296A (en) | Electrode for plasma arc torch | |
| RU118821U1 (en) | PROTECTIVE COVER OF THE MOUNT PIECE AND HOLDER OF THE PROTECTIVE COVER OF THE MOUNT, AND ALSO THE ELECTRIC ARC PLASMA BURNER WITH SUCH CAP AND / OR WITH SUCH CAP HOLDER | |
| US4300034A (en) | Gas tungsten arc welding torch | |
| CA1114459A (en) | Method of and welding torch for arc welding | |
| JPS6228084A (en) | Plasma jet torch | |
| JPS5999700A (en) | Ionizable gas arc burner and method of introducing plasma burner into plasma and plasma burner for executing same method | |
| JPS61119000A (en) | Plasma arc torch | |
| US3865173A (en) | Art of casting metals | |
| CA2389437A1 (en) | Plasma torch and method for underwater cutting | |
| US3030490A (en) | Multiple purpose arc torch apparatus | |
| JPS632231Y2 (en) | ||
| US5266776A (en) | Plasma arc cutting and welding tip | |
| JPS632230Y2 (en) | ||
| JPH03174980A (en) | Plasma torch | |
| US5362938A (en) | Plasma arc welding torch having means for "vortexing" plasma gas exiting the welding torch | |
| JPS6281274A (en) | Plasma jet torch | |
| JPH07256462A (en) | Structure of welding part in gas shield arc welding equipment | |
| JP2013052395A (en) | Arc welding torch | |
| JPH0329023Y2 (en) | ||
| RU2038934C1 (en) | Torch for consumable electrode arc welding |