CN85200541U - Metals cutting blowpipe with water compressing and air plasma arc - Google Patents
Metals cutting blowpipe with water compressing and air plasma arc Download PDFInfo
- Publication number
- CN85200541U CN85200541U CN 85200541 CN85200541U CN85200541U CN 85200541 U CN85200541 U CN 85200541U CN 85200541 CN85200541 CN 85200541 CN 85200541 U CN85200541 U CN 85200541U CN 85200541 U CN85200541 U CN 85200541U
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- cutting
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- water
- air plasma
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Abstract
The utility model discloses a metals cutting blowpipe with water compressing and air plasma arc to cut various metal and has a quick cutting metal effect with high quality owing to use a multi-head thread water cooling channel, an end face tangential water cooling groove, a water curtain cover structure and a back arranged water cooling device. The cutting blowpipe can cut various metal materials, such as the stainless steel, the cast iron, the aluminium, the copper and the carbon steel in high speed about 300 to 400 meter / hour and with the width of the seam from 4 meter to 6 meter, the notch has no melted residue and has high degree of finish more than v 3, and the cutting quality is better than other plasma cutting blowpipes.
Description
The utility model belongs to a kind of cutting torch of cutting metal.
In existing plasma cutting technique, water arc of folding cutting torch great majority are medium (U.S. Patent No. 3641308) with nitrogen, and all do not have consideration cooling problem to metal material in cutting, so that cut quality is not very good.Though in U.S. Patent No. 4421970, adopted the nozzle face water spray, mainly be sensing device as command range.And when under adopting plasma water, cutting, though can obtain good cut quality, but have 15～20% energy loss, and complex procedures.For existing air plasma arc cutting torch,, all do not adopt the water jet compression arc as U.S. Patent No. 4059743.
The purpose of this utility model is to provide a kind of air plasma cutting torch through the water recompression with favorable cooling effect, to guarantee high-quality, high speed and the cheap cutting to various metal materials.
General air plasma cutting torch is made up of parts such as torch head (comprising: electrode, nozzle, gland), rifle body, insulation sleeve, cathode rods.The torch head (accompanying drawing 1) of the air plasma water arc of folding cutting torch that the utility model provides is made up of electrode (1), top nozzle (2), following nozzle (3) and gland (4).The top nozzle leading section is bull square thread (5), top end face have three with the spray road become tangential groove (6) (accompanying drawing 2), following nozzle inner surface has a cannelure (7), uniform several straight-through apertures (8) (accompanying drawing 3) of nozzle outer face down in cannelure, during work, cooling water is in cooling water cavity enters into the anterior outer rim bull of top nozzle square thread passage, part water enters spray road (9) through tangential slot (6) rotary-cut, and another part water warp nozzle cannelure (7) down vertically is ejected on the workpiece in following nozzle outer face aperture (8).The cooling water of releasing by negative electrode cooling water water draw-off (10) is guided near the cutting torch, keeps (accompanying drawing 4) washed away and cooled off to arc column 30～40 mm distance to the joint-cutting of just having cut.
Air plasma water arc of folding cutting torch major advantage of the present utility model is: have better techno-economic effect than the water arc of folding cutting torch of other gas, general air plasma cutting torch and underwater plasma cutting torch.Because the top nozzle side of employing odontodes head thread water-cooling channel (5), the actual water-cooled area of top nozzle is increased, good effect of heat exchange, prolongation top nozzle service life.Part water enters spray road (9) through top nozzle end face tangential slot (6) rotary-cut; surround arc column; add the compression of hard arc; arc energy is concentrated; reduce the width of joint-cutting; joint-cutting by past 8 mm wide is reduced to 4～6 millimeters, and has protected spray road (9) again, prolongs top nozzle service life.Oneself is ejected into cooling water on the cut workpiece by following nozzle aperture (8), forms the water curtain cover, has fully cooled off cut workpiece, can avoid the destruction and the distortion of workpiece metallographic structure.Simultaneously, electric arc also is suppressed outside nozzle, has strengthened cutting effect, the also corresponding life-span of improving time nozzle.Upper and lower nozzle is all made of red copper, and following nozzle also useful ceramics is made.In addition, the cooling water that releases by negative electrode cooling water water draw-off (10) directly washes away the otch of just having cut, and can prevent sheet deformation, prevents that notch portion is overheated and guarantees the tangent plane perpendicularity.
Cutting torch of the present utility model can be used to cut various metal materials such as stainless steel below 60 millimeters, chrome-nickel steel, copper, aluminium alloy, cast iron, 50～70 kilowatts of .The cutting of carbon steel.Its arc power is at torch cutting speed is the fastest to reach 300～400 meters/hour (being used for 6～8 millimeters carbon steel thin plate material cutting), and cutting back tangent plane does not have molten dross, fineness
More than, be better than other method cutting metal at present.Use this cutting torch to be restricted to bottom line to the heat affecting line on the sheet material after the Metal Cutting, reaching top does not have the heat affecting vestige, and the bottom is no more than 1 millimeter, and sheet material is indeformable substantially, has reached the purpose of high-quality high-speed cutting.
Description of drawings
Fig. 1, the schematic diagram of expression torch head internal structure.
Fig. 2, expression top nozzle ［ 2 ］ front end face schematic diagram.
Fig. 3, expression is nozzle ［ 3 ］ front end face schematic diagram down.
Fig. 4, expression is advanced immediately following cutting torch and is cooled off the negative electrode cooling water water draw-off ［ 10 ］ that cuts body.
Embodiment
Top nozzle adopts red copper to manufacture, and leading section bull square thread is 4～6, and three tangential grooves of preceding top end face are arc, and dark 0.7 millimeter, arc radius 2 millimeter.
Following nozzle adopts red copper or pottery to manufacture, 3 millimeters of the annular groove depths of its inner surface, and wide 2.5 millimeters, uniform 8 hole diameters in outer face are 1 millimeter, aperture is between 10～20 millimeters apart from spray road centre distance.
Claims (2)
1, a kind of air plasma water arc of folding cutting torch of cutting metal, form by parts such as torch head, rifle body, insulation sleeve, cathode rods, technical characterictic of the present utility model is that last nozzle [2] front end of torch head is bull square thread [5], and end face has and sprays [9] tangent groove [6], the following nozzle inner surface that matches with last nozzle has a cannelure [7], uniform several straight-through apertures [8] of nozzle outer face down in cannelure.
2, cutting torch as claimed in claim 1 is characterized in that nozzle makes with red copper, and following nozzle is made with red copper or pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85200541 CN85200541U (en) | 1985-04-01 | 1985-04-01 | Metals cutting blowpipe with water compressing and air plasma arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85200541 CN85200541U (en) | 1985-04-01 | 1985-04-01 | Metals cutting blowpipe with water compressing and air plasma arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85200541U true CN85200541U (en) | 1986-05-21 |
Family
ID=4796846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85200541 Expired - Lifetime CN85200541U (en) | 1985-04-01 | 1985-04-01 | Metals cutting blowpipe with water compressing and air plasma arc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85200541U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8633417B2 (en) | 2010-12-01 | 2014-01-21 | The Esab Group, Inc. | Electrode for plasma torch with novel assembly method and enhanced heat transfer |
| CN115625399A (en) * | 2022-12-22 | 2023-01-20 | 河北凯瑞装备股份有限公司 | Large-diameter elbow beveling machine |
-
1985
- 1985-04-01 CN CN 85200541 patent/CN85200541U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8633417B2 (en) | 2010-12-01 | 2014-01-21 | The Esab Group, Inc. | Electrode for plasma torch with novel assembly method and enhanced heat transfer |
| CN115625399A (en) * | 2022-12-22 | 2023-01-20 | 河北凯瑞装备股份有限公司 | Large-diameter elbow beveling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |