JPS632230Y2 - - Google Patents
Info
- Publication number
- JPS632230Y2 JPS632230Y2 JP1981020186U JP2018681U JPS632230Y2 JP S632230 Y2 JPS632230 Y2 JP S632230Y2 JP 1981020186 U JP1981020186 U JP 1981020186U JP 2018681 U JP2018681 U JP 2018681U JP S632230 Y2 JPS632230 Y2 JP S632230Y2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- gap
- cap
- plasma
- present
- 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
- 239000000498 cooling water Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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、プラズマ切断法によると被切
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 in which the workpiece is physically melted and scattered using the arc flow of a high-temperature, high-velocity plasma flame, but plasma cutting requires that the workpiece be electrically conductive. It can easily generate a plasma flow with high temperature and high current density, has high thermal efficiency and high cutting ability, and is 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 nozzle tip 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 dramatically extends the nozzle life by improving the cooling efficiency of the plasma torch, reducing the number of nozzle replacements, and reducing the plasma arc diameter. The present invention provides a plasma torch that achieves stable cutting with a constant value.
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、第3図は本考案の
要部拡大説明図である。 FIG. 1 is a partially sectional explanatory view of the present invention, FIG. 2 is an explanatory rear view of the cap of the present invention, and FIG. 3 is an enlarged explanatory view of the main parts of the present invention.
図において円筒状ノズル架台10にノズル12
がOリング20を介して固定されている。ノズル
12は中空円錐状に形成されて、電極17を内設
しており、電極17はノズル孔18に指向して、
ガス空隙部22を形成する。又電極17を水冷却
のための冷却管(図示せず)を設けている。 In the figure, a nozzle 12 is mounted on a cylindrical nozzle stand 10.
is fixed via an O-ring 20. The nozzle 12 is formed into a hollow conical shape and has an electrode 17 therein, and the electrode 17 is oriented toward the nozzle hole 18.
A gas gap 22 is formed. A cooling pipe (not shown) is also provided for cooling the electrode 17 with water.
前記ノズル12にはキヤツプ13がすき間24
を介在するように外装されて基台11にOリング
21を介して着脱可能に設けられ、キヤツプ先端
はノズル12に密に接して冷却水往路15と冷却
水帰路16を介設する。 The nozzle 12 has a cap 13 with a gap 24.
The cap is detachably attached to the base 11 via an O-ring 21, and the tip of the cap is in close contact with the nozzle 12, with a cooling water outgoing path 15 and a cooling water return path 16 interposed therebetween.
本考案のプラズマトーチのキヤツプ13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14を設けている。キヤツプ13は着脱
可能であるので、セパレータ14はキヤツプ13
の固着状態で、ノズル12に密着することが望ま
しい。かくてキヤツプ13とノズル12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14の材質はゴム糸が良い。 The plasma torch cap 13 of the present invention has a plurality of cooling water rectifying separators 14 provided on its inner surface in the direction of the torch axis. Since the cap 13 is removable, the separator 14 is attached to the cap 13.
It is desirable that the nozzle 12 be in close contact with the nozzle 12 in a fixed state. In this way, the gap between the cap 13 and the nozzle 12 is completely blocked in the axial direction of the torch. For this reason, the material of the separator 14 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
13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 13 is set.
本考案においては前記ノズル12のノズル孔1
8の円周方向に溝23を刻設して、ノズル12の
先端部の肉厚を薄くして冷却水の循環を可能にす
る冷却水路を形成している。 In the present invention, the nozzle hole 1 of the nozzle 12
A groove 23 is cut in the circumferential direction of the nozzle 12 to reduce the thickness of the tip of the nozzle 12 to form a cooling waterway that enables circulation of cooling water.
溝23は円周方向にノズル12の先端を囲繞す
るように設けるが、実験によるとt=10mm程度が
好ましいが、プラズマアークの発熱量によつて定
めるものとして特に限定するものではない。又l
寸法については冷却水量を減少させない範囲で狭
くし、冷却水の流路を速め、冷却効率を高くす
る。 The groove 23 is provided so as to surround the tip of the nozzle 12 in the circumferential direction, and according to experiments, it is preferable that t=10 mm, but it is not particularly limited as it is determined by the amount of heat generated by the plasma arc. Also l
The dimensions are narrowed within a range that does not reduce the amount of cooling water, and the cooling water flow path is made faster to increase cooling efficiency.
第4図は第1図のB−B′矢視図、第5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15及び帰路16はすき間24に開口
して冷却水路を形成している。 4 is a view taken along the line B-B' in FIG. 1, and FIG. 5 is a view taken along the line A-A' in FIG. As shown in the figure,
The cooling water outward path 15 and the return path 16 open into the gap 24 to form a cooling water channel.
更に本考案では、キヤツプ13の内側面のトー
チ軸方向に複数条のセパレータ14を設け、すき
間24をトーチの軸方向に遮断している。 Further, in the present invention, a plurality of separators 14 are provided on the inner surface of the cap 13 in the direction of the torch axis to block the gap 24 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24を通り、ノズ
ル2先端の溝9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 return path 5 through the gap 24 divided by the separator 8 to the groove 9 at the tip of the nozzle 2.
Return to
本考案の構成は以上の通りであるが、本考案に
よるとプラズマアークの先端形状に関係なく、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 tip of the plasma arc, the cooling water supplied to the base of the torch is rectified by the separator in the gap between the nozzle and the cap.
Highly efficient cooling can be achieved by circulating the nozzle tip.
更にノズル孔近傍の肉厚を減少してプラズマア
ークの加熱をうける部分に溝を刻設して冷却効果
を大にしたので、ノズル先端部の消耗が著しく軽
減され、作業能率は向上し、更にアーク径が一定
に維持できて、安定した切削加工が可能である。 Furthermore, we have reduced the wall thickness near the nozzle hole and carved grooves in the area that is heated by the plasma arc to increase the cooling effect, significantly reducing wear and tear on the nozzle tip and improving work efficiency. The arc diameter can be maintained constant, allowing stable cutting.
実験によると従来例によると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1000カ
ツト以上の連続切削加工が可能となり、その工業
的効果は大である。 According to experiments, the conventional method required nozzle replacement after 600 cuts, but the present invention enables continuous cutting of more than 1,000 cuts, which has great industrial effects.
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図は本考案の要部説明
図、第4図は第1図のB−B′矢視断面図、第5
図は第1図のA−A′矢視断面図である。
10;円筒状ノズル架台、11;基台、12;
ノズル、13;キヤツプ、14;セパレータ、1
8;ノズル孔、22;ガス空隙部、23;溝。
Figure 1 is a partial cross-sectional explanatory diagram of the present invention, Figure 2 is a partial rear view of the present invention, Figure 3 is an explanatory diagram of the main parts of the present invention, and Figure 4 is a cross-sectional view taken along the line B-B' in Figure 1. Figure, 5th
The figure is a sectional view taken along the line A-A' in FIG. 10; Cylindrical nozzle mount, 11; Base, 12;
Nozzle, 13; Cap, 14; Separator, 1
8; nozzle hole, 22; gas gap, 23; groove.
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、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の軸方向に複数条固着して、
前記すき間を軸方向に遮断し、かつ前記ノズル先
端のノズル孔の円周方向に溝を刻設して冷却水路
を形成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. Open the cooling pipe, attach multiple separators with stripes to the inside of the cap in the axial direction of the torch, and stick them tightly to the nozzle.
A plasma torch characterized in that the gap is blocked in the axial direction and a groove is carved in the circumferential direction of the nozzle hole at the tip of the nozzle to form a cooling water channel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981020186U JPS632230Y2 (en) | 1981-02-17 | 1981-02-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981020186U JPS632230Y2 (en) | 1981-02-17 | 1981-02-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57136581U JPS57136581U (en) | 1982-08-26 |
JPS632230Y2 true JPS632230Y2 (en) | 1988-01-20 |
Family
ID=29818105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1981020186U Expired JPS632230Y2 (en) | 1981-02-17 | 1981-02-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS632230Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011000337A1 (en) * | 2009-07-03 | 2011-01-06 | Kjellberg Finsterwalde Plasma Und Maschinen Gmbh | Nozzle for a liquid-cooled plasma torch and plasma torch head having the same |
WO2021142314A2 (en) * | 2020-01-09 | 2021-07-15 | Hypertherm, Inc. | Nozzles for liquid cooled plasma arc cutting torches with clocking-independent passages |
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 JP1981020186U patent/JPS632230Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS57136581U (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 | |
CA2174317C (en) | Plasma torch | |
US5416296A (en) | Electrode for plasma arc torch | |
US4777343A (en) | Plasma arc apparatus | |
CA2674290C (en) | Plasma arc torch cutting component with optimized water cooling | |
US4055741A (en) | Plasma arc torch | |
US5310988A (en) | Electrode for high current density plasma arc torch | |
CA1114459A (en) | Method of and welding torch for arc welding | |
US4343983A (en) | Non-consumable composite welding electrode | |
JPS6228084A (en) | Plasma jet torch | |
JPS632230Y2 (en) | ||
CA2815260A1 (en) | Electrode for plasma cutting torches and use of same | |
JPS632231Y2 (en) | ||
US3030490A (en) | Multiple purpose arc torch apparatus | |
JPS62240170A (en) | Torch | |
GB1598574A (en) | Plasma-arc cutting machine | |
US4864097A (en) | Plasma arc torch with confined and controlled plasma jet column | |
CN106825869B (en) | Argon arc welding gun and device with same | |
JPS63168283A (en) | Plasma mig welding equipment | |
US5266776A (en) | Plasma arc cutting and welding tip | |
JPS6317031B2 (en) | ||
JPS63154273A (en) | Plasma torch | |
JPH03174980A (en) | Plasma torch | |
JPH0329023Y2 (en) | ||
JPH09192844A (en) | Electrode of plasma cutting torch |