JPH10166156A - Plasma cutting device - Google Patents

Plasma cutting device

Info

Publication number
JPH10166156A
JPH10166156A JP32622896A JP32622896A JPH10166156A JP H10166156 A JPH10166156 A JP H10166156A JP 32622896 A JP32622896 A JP 32622896A JP 32622896 A JP32622896 A JP 32622896A JP H10166156 A JPH10166156 A JP H10166156A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
object
nozzle
cutting
cover
cut
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.)
Pending
Application number
JP32622896A
Other languages
Japanese (ja)
Inventor
Tetsuya Inoue
Takeshi Kato
Hidehiko Maehata
Daisuke Tamakoshi
鉄也 井上
英彦 前畑
剛 加藤
大介 玉越
Original Assignee
Hitachi Zosen Corp
日立造船株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Abstract

PROBLEM TO BE SOLVED: To attain safety of an operator by providing a means for removing waste gas, which is produced in cutting a nonmetallic object such as FRP using a plasma jet, and thereby preventing the waste gas from dispersing.
SOLUTION: The device is provided with a power source 4 for applying a prescribed voltage between a nozzle 2 and an electrode 3, a cover 7 for preventing the dispersion of waste gas 6 produced at the time of cutting an object 5, a suction tube 8 for sucking the waste gas 6, a waste gas treating device 9, and a suction pump 10; at the time of cutting an object 5, the end face 7a of the cover 7 is abutted on the surface of the object 5, with a prescribed voltage applied between the nozzle 2 and the electrode 3 by the power source 4, and with an operating gas 15 supplied to the flow-out hole, so that a plasma jet is generated from the flow-out hole 14, cutting the object 5, while the waste gas 6 produced is prevented by the cover 7 from dispersing.
COPYRIGHT: (C)1998,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、プラズマ切断装置に関する。 The present invention relates to relates to a plasma cutting device.

【0002】 [0002]

【従来の技術】一般に、FRP製の廃船など、非金属の被切断物40を粗切断する際には、プラズマ切断装置、 In general, such an FRP waste vessel, when coarse cutting the object to be cut 40 non-metallic, plasma cutting device,
特に非移行式(ノントランスファープラズマ式ともいう)のプラズマ切断装置41が用いられる。 In particular plasma cutting apparatus 41 of the non-transferred (also referred to as a non-transfer plasma expression) it is used.

【0003】従来、図4に示すように、この種のプラズマ切断装置41は、ノズル(例えば銅製)42およびこのノズル42の先端部に形成した小径の流出孔43に対向するようノズル42内に設けた電極(例えばタングステン製)44を備え、電源部45からノズル42と電極44の間に所定の電圧を印加し、アルゴンなどの作動ガス46を流出孔43に送給することにより、流出孔43 Conventionally, as shown in FIG. 4, a plasma cutting device 41 of this kind, a nozzle (e.g., copper) 42 and the nozzle 42 so as to face the small diameter of the outflow hole 43 formed on the tip of the nozzle 42 to the an electrode (e.g., tungsten) 44 provided, the predetermined voltage is applied from the power supply unit 45 between the nozzle 42 and the electrode 44, by feeding the working gas 46 such as argon to the outflow hole 43, the outflow hole 43
からプラズマジェットを発生させ、これにより被切断物40を切断するものである。 To generate a plasma jet from, thereby is to cut the object to be cut 40.

【0004】 [0004]

【発明が解決しようとする課題】上記プラズマ切断装置41において、FRPなどの非金属製の被切断物40をプラズマジェットを用いて切断する際には、排ガス(ヒューム)が発生する。 In the plasma cutting apparatus 41 [SUMMARY OF THE INVENTION], the non-metallic object to be cut 40, such as FRP when cutting with a plasma jet, the exhaust gas (fume) is generated.

【0005】しかし、上記プラズマ切断装置41では、 However, in the plasma cutting device 41,
排ガスを除去する手段を有しないので、作業者がこれらのものを吸引すると危険である。 It does not have the means for removing the exhaust gas, which is dangerous when the operator sucks these things. そこで本発明は、上記課題を解決し得るプラズマ切断装置の提供を目的とする。 The present invention has an object to provide a plasma cutting apparatus capable of solving the above problems.

【0006】 [0006]

【課題を解決するための手段】本発明における課題を解決するための手段は、金属製のノズルおよびこのノズルの先端部に設けた流出孔に対向するようノズル内に設けた電極を備え、ノズルと電極の間に所定の電圧を印加し、作動ガスを流出孔に送給することにより、流出孔からプラズマジェットを発生させるようにし、ノズルに、 It means for solving the problems in the present invention SUMMARY OF THE INVENTION comprises an electrode provided on the nozzle so as to face the outlet hole provided in the distal end portion of the metal nozzle and the nozzle, the nozzle and a predetermined voltage is applied between the electrodes, by feeding the working gas in the outlet hole, so as to generate a plasma jet from the outflow hole, a nozzle,
被切断物の切断時に発生する排ガスの飛散を防止するカバーが設けられ、このカバーに、排ガスを吸引して所定の場所に導く吸引管が取付けられている。 Provided a cover for preventing scattering of exhaust gas generated at the time of cutting the object to be cut, in the cover, suction pipe for guiding in place by suction gas is attached.

【0007】この構成によれば、被切断物の切断時に、 [0007] According to this arrangement, when cutting the object to be cut,
ノズルと電極の間に所定の電圧を印加し、作動ガスを流出孔に送給することにより、流出孔からプラズマジェットが発生し、被切断物の切断時に発生した排ガスは、カバーによって飛散が防止され、吸引管によって吸引されて所定の場所に排出される。 Preventing a predetermined voltage is applied between the nozzle and the electrode, by feeding working gas to the outflow hole, the plasma jet is generated from the outflow hole, exhaust gas generated when cutting the object to be cut is scattered by the cover is and is sucked by the suction pipe is discharged to a predetermined place.

【0008】また、カバーに、被切断物の表面に当接して転動する車輪を取付けることにより、ノズルを被切断物の表面に沿って自由に移動させることができる。 Further, in the cover, by attaching the wheels which roll in contact with the surface of the object to be cut can be moved freely along the nozzle surface of the object to be cut.

【0009】 [0009]

【発明の実施の形態】以下、本発明の実施の形態に係るプラズマ切断装置を、図面に基づいて説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a plasma cutting apparatus according to an embodiment of the present invention will be described with reference to the drawings.

【0010】まず、本発明の実施の第一形態を図1の断面図に基づいて説明する。 [0010] First, a first embodiment of the present invention will be described with reference to sectional views of FIG. 本発明の実施の第一形態に係るプラズマ切断装置1は、銅製のノズル2と、このノズル2内に設けられた電極3と、ノズル2と電極3の間に所定の電圧を印加するための電源部4と、被切断物5の切断時に発生する排ガス(ヒューム)6の飛散を防止するカバー7と、排ガス6を吸引して所定の場所に導く吸引管8と、この吸引管8に接続された排ガス処理装置(フィルタや活性炭を備えている)9および吸引ポンプ10とから構成されている。 Plasma cutting apparatus 1 according to the first embodiment of the present invention, the copper nozzle 2, an electrode 3 provided in the nozzle 2, for applying a predetermined voltage between the nozzle 2 and the electrode 3 a power supply unit 4, a cover 7 for preventing scattering of the exhaust gas (fume) 6 which occurs when cutting the object to be cut 5, a suction tube 8 for guiding by sucking the exhaust gas 6 in place, connected to the suction tube 8 and a is an exhaust gas treatment apparatus (provided with a filter and activated charcoal) 9 and the suction pump 10.

【0011】ノズル2は、外壁部11が二重構造となっており、その内部には、冷却水12の通る冷却通路13 [0011] nozzle 2, the outer wall portion 11 has a double structure, the inside, the cooling passages through a cooling water 12 13
が形成され、ノズル2の先端部中央には小径の流出孔1 There is formed, the distal end portion center of the nozzle 2 small-diameter outlet hole 1
4が形成され、ノズル2の内部には、前記電極3を配置するとともにアルゴンガスなどの作動ガス15を流出孔14に向けて送給するためのガス通路16が形成されている。 4 is formed, inside the nozzle 2, the gas passage 16 for feeding towards the working gas 15 such as argon gas to the outflow hole 14 with positioning the electrode 3 is formed.

【0012】また電極3は、流出孔14にわずかな隙間を介して対向するようガス通路16に配置されている。 Further electrode 3 is disposed in the gas passage 16 so as to face each other with a slight gap to the outflow hole 14.
前記カバー7はノズル2の途中に摺動(昇降)自在に取付けられ、切断作業時に、その端面7aが被切断物5の表面に当接するよう一側開放の箱型に形成されている。 The cover 7 is slid (lift) in the middle of the nozzle 2 rotatably mounted, at the time of cutting operation, the end face 7a is formed in a box shape of one side opened so as to contact with the surface of the object to be cut 5.

【0013】上記構成において、被切断物5を切断する際には、まず、カバー7を適宜の位置に摺動させてその端面7aを被切断物5の表面に当接させ、電源部4によって、ノズル2と電極3の間に所定の電圧を印加し、作動ガス15を流出孔14に送給することにより、流出孔14からプラズマジェットが発生し、これにより被切断物5が切断される。 [0013] In the above structure, when cutting the object to be cut 5 is first slid cover 7 at an appropriate position is brought into contact with the end face 7a on the surface of the object to be cut 5, the power supply unit 4 , a predetermined voltage is applied between the nozzle 2 and the electrode 3, by delivering the working gas 15 to the outflow hole 14, the outflow hole 14 plasma jet is generated from object to be cut 5 is cut by this .

【0014】このとき、排ガス6が発生するが、カバー7により排ガス6が飛散するのが防止され、また吸引ポンプ10の駆動により、排ガス6が吸引管8に移行して排ガス処理装置9で処理され、所定の場所に排出される。 [0014] At this time, the exhaust gas 6 is generated, the exhaust gas 6 is prevented from scattering by the cover 7, and by driving the suction pump 10, the exhaust gas 6 is shifted to the suction pipe 8 in the exhaust gas processing device 9 treatment It is, is discharged to a predetermined place.

【0015】また、カバー7によって切断時に発生する切断粉の飛散も防止できる。 Further, scattering of cutting chips generated during the cutting by the cover 7 can be prevented. このように、本発明の実施の第一形態によれば、被切断物5の切断時に、排ガス6 Thus, according to a first embodiment of the present invention, when cutting the object to be cut 5, the exhaust gas 6
や切断粉が飛散するのを防止するカバー7を設けたので、切断作業時に作業者がこれらのものを吸引するのを防止でき、安全である。 Since or cutting dust is a cover 7 to prevent the scattering operator during cutting operation can be prevented from sucking these things, it is safe.

【0016】次に図2に基づいて、本発明の実施の第二形態を説明する。 [0016] Next, based on FIG. 2, illustrating a second embodiment of the present invention. 本発明の実施の第二形態に係るプラズマ切断装置1は、カバー7の端面7aにキャスタ20が取付けられたものである。 Plasma cutting apparatus 1 according to a second embodiment of the present invention are those casters 20 attached to the end face 7a of the cover 7. 他の構成は上記実施の第一形態と同様である。 Other structures are the same as the first embodiment described above.

【0017】この構成によれば、被切断物5の切断時に、キャスタ20が被切断物5の表面に当接するようにすることにより、ノズル2を被切断物5の表面に沿って自由に移動させることができる。 According to this arrangement, the movement at the time of cutting the object to be cut 5, by the casters 20 into contact with the surface of the object to be cut 5, freely along the nozzle 2 on the surface of the object to be cut 5 it can be. 他の作用効果は上記実施の第一形態と同様である。 Other effects and advantages are the same as the first embodiment described above.

【0018】次に図3の断面図に基づいて、本発明の実施の第三形態を説明する。 [0018] Then, based on the sectional view of FIG. 3, illustrating a third embodiment of the present invention. 本発明の実施の第三形態に係るプラズマ切断装置1は、カバー7の端面7a全周に、 Plasma cutting apparatus 1 according to a third embodiment of the present invention, the end face 7a of the cover 7 the entire circumference,
ウレタンなどの弾性材料からなる当接部材30を設けたものである。 It is provided with a contact member 30 made of an elastic material such as urethane.

【0019】この構成によれば、被切断物5の切断時に、当接部材30が被切断物5の表面に当接するようにすると、当接部材30は弾性材料かなっているので、被切断物5の表面に密着し、従って、確実に排ガス6の飛散を防止することができる。 According to this structure, when cutting the object to be cut 5, the contact member 30 into contact with the surface of the object to be cut 5, so the contact member 30 is made or an elastic material, object to be cut 5 in close contact with the surface of the, thus, it is possible to reliably prevent scattering of the exhaust gas 6. 他の作用効果は、上記実施の第一形態と同様である。 Other advantages are the same as the first embodiment described above.

【0020】 [0020]

【発明の効果】以上の説明から明らかな通り、本発明は、金属製のノズルに、被切断物の切断時に発生する排ガスの飛散を防止するカバーが設けられ、このカバーに、排ガスを吸引して所定の場所に導く吸引管が取付けられたので、ノズルおよびこのノズルに設けた流出孔に対向するよう設けた電極の間に所定の電圧を印加し、作動ガスを流出孔に送給して流出孔からプラズマジェットを発生させて被切断物を切断する際に、排ガスの飛散を防ぐことができ、作業者にとって安全である。 As is clear from the description above, according to the present invention, the present invention includes a metal nozzle, the cover is provided for preventing scattering of exhaust gas generated at the time of cutting the object to be cut, in the cover, was aspirated exhaust gases since the suction tube leading to place and attached Te, a predetermined voltage is applied between as provided electrodes facing the outlet hole provided in the nozzle and the nozzle, and feeding the working gas in the outlet hole by generating plasma jets from the outflow hole when cutting the object to be cut, it is possible to prevent the scattering of the exhaust gas, which is safe for the operator.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施の第一形態を示すプラズマ切断装置の全体構成を示す断面図である。 It is a cross-sectional view showing the overall configuration of a plasma cutting apparatus according to the first embodiment of the present invention; FIG.

【図2】本発明の実施の第二形態を示すプラズマ切断装置の全体構成を示す断面図である。 It is a cross-sectional view showing the overall configuration of a plasma cutting apparatus according to the second embodiment of the present invention; FIG.

【図3】本発明の実施の第三形態を示すプラズマ切断装置の全体構成を示す断面図である。 3 is a cross-sectional view showing the overall configuration of a plasma cutting apparatus according to the third embodiment of the present invention.

【図4】従来のプラズマ切断装置の断面図である。 4 is a cross-sectional view of a conventional plasma cutting device.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 プラズマ切断装置 2 ノズル 3 電極 4 電源部 5 被切断物 6 排ガス 7 カバー 8 吸引管 9 排ガス処理装置 10 吸引ポンプ 1 Plasma cutting apparatus 2 nozzle 3 electrode 4 Power unit 5 the object 6 gas 7 cover 8 suction pipe 9 the exhaust gas treatment apparatus 10 suction pump

フロントページの続き (72)発明者 前畑 英彦 大阪府大阪市此花区西九条5丁目3番28号 日立造船株式会社内 (72)発明者 加藤 剛 大阪府大阪市此花区西九条5丁目3番28号 日立造船株式会社内 Of the front page Continued (72) inventor Hidehiko Maehata Osaka, Osaka Prefecture Konohana Ward Nishikujo 5-chome No. 3 No. 28 Hitachi Zosen within Co., Ltd. (72) inventor Kato, Tsuyoshi Osaka, Osaka Prefecture Konohana Ward Nishikujo 5-chome 3 No. 28 issue Hitachi Zosen in Corporation

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 金属製のノズルおよびこのノズルの先端部に設けた流出孔に対向するようノズル内に設けた電極を備え、ノズルと電極の間に所定の電圧を印加し、作動ガスを流出孔に送給することにより、流出孔からプラズマジェットを発生させ、これにより被切断物を切断するプラズマ切断装置であって、ノズルに、被切断物の切断時に発生する排ガスの飛散を防止するカバーが設けられ、このカバーに、排ガスを吸引して所定の場所に導く吸引管が取付けられたことを特徴とするプラズマ切断装置。 [Claim 1 further comprising an electrode provided in the nozzle so as to face the metal nozzle and the outflow hole formed in the distal end portion of the nozzle, a predetermined voltage is applied between the nozzle and the electrode, discharging the working gas by feeding the hole, to generate a plasma jet from the outflow hole, thereby a plasma cutting device for cutting the object to be cut, the nozzle, to prevent scattering of the exhaust gas generated when cutting the object to be cut cover It is provided on the cover, a plasma cutting device, wherein a suction pipe for guiding in place by suction gas is attached.
  2. 【請求項2】 カバーに、被切断物の表面に当接して転動する車輪が取付けられたことを特徴とする請求項1記載のプラズマ切断装置。 Wherein the cover, plasma cutting apparatus according to claim 1, wherein the wheels that roll in contact with the surface of the object to be cut is mounted.
JP32622896A 1996-12-06 1996-12-06 Plasma cutting device Pending JPH10166156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32622896A JPH10166156A (en) 1996-12-06 1996-12-06 Plasma cutting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32622896A JPH10166156A (en) 1996-12-06 1996-12-06 Plasma cutting device

Publications (1)

Publication Number Publication Date
JPH10166156A true true JPH10166156A (en) 1998-06-23

Family

ID=18185429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32622896A Pending JPH10166156A (en) 1996-12-06 1996-12-06 Plasma cutting device

Country Status (1)

Country Link
JP (1) JPH10166156A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009097308A1 (en) * 2008-01-28 2009-08-06 Innovative Therapies, Inc. Method and apparatus for manufacturing wound dressing for negative pressure wound therapy
US8435437B2 (en) 2009-09-04 2013-05-07 Abbott Cardiovascular Systems Inc. Setting laser power for laser machining stents from polymer tubing
US8679394B2 (en) 2010-06-10 2014-03-25 Abbott Cardiovascular Systems Inc. Laser system and processing conditions for manufacturing bioabsorbable stents
US9038260B2 (en) 2006-05-26 2015-05-26 Abbott Cardiovascular Systems Inc. Stent with radiopaque markers
US9198785B2 (en) 2010-01-30 2015-12-01 Abbott Cardiovascular Systems Inc. Crush recoverable polymer scaffolds
DE102011053106B4 (en) * 2011-02-25 2016-03-24 Industrieanlagen-Betriebsgesellschaft Mbh Plasma torch and method for machining workpieces
US9532888B2 (en) 2006-01-04 2017-01-03 Abbott Cardiovascular Systems Inc. Stents with radiopaque markers
US9827119B2 (en) 2010-01-30 2017-11-28 Abbott Cardiovascular Systems Inc. Polymer scaffolds having a low crossing profile
US9999527B2 (en) 2015-02-11 2018-06-19 Abbott Cardiovascular Systems Inc. Scaffolds having radiopaque markers
US10070975B2 (en) 2016-11-21 2018-09-11 Abbott Cardiovascular Systems Inc. Stents with radiopaque markers

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9532888B2 (en) 2006-01-04 2017-01-03 Abbott Cardiovascular Systems Inc. Stents with radiopaque markers
US9358325B2 (en) 2006-05-26 2016-06-07 Abbott Cardiovascular Systems Inc. Stents with radiopaque markers
US9694116B2 (en) 2006-05-26 2017-07-04 Abbott Cardiovascular Systems Inc. Stents with radiopaque markers
US9038260B2 (en) 2006-05-26 2015-05-26 Abbott Cardiovascular Systems Inc. Stent with radiopaque markers
WO2009097308A1 (en) * 2008-01-28 2009-08-06 Innovative Therapies, Inc. Method and apparatus for manufacturing wound dressing for negative pressure wound therapy
US8435437B2 (en) 2009-09-04 2013-05-07 Abbott Cardiovascular Systems Inc. Setting laser power for laser machining stents from polymer tubing
US9770351B2 (en) 2010-01-30 2017-09-26 Abbott Cardiovascular Systems Inc. Crush recoverable polymer scaffolds
US9198785B2 (en) 2010-01-30 2015-12-01 Abbott Cardiovascular Systems Inc. Crush recoverable polymer scaffolds
US9867728B2 (en) 2010-01-30 2018-01-16 Abbott Cardiovascular Systems Inc. Method of making a stent
US9763818B2 (en) 2010-01-30 2017-09-19 Abbott Cardiovascular Systems Inc. Method of crimping stent on catheter delivery assembly
US9827119B2 (en) 2010-01-30 2017-11-28 Abbott Cardiovascular Systems Inc. Polymer scaffolds having a low crossing profile
US9744625B2 (en) 2010-06-10 2017-08-29 Abbott Cardiovascular Systems Inc. Laser system and processing conditions for manufacturing bioabsorbable stents
US8679394B2 (en) 2010-06-10 2014-03-25 Abbott Cardiovascular Systems Inc. Laser system and processing conditions for manufacturing bioabsorbable stents
DE102011053106B4 (en) * 2011-02-25 2016-03-24 Industrieanlagen-Betriebsgesellschaft Mbh Plasma torch and method for machining workpieces
US9999527B2 (en) 2015-02-11 2018-06-19 Abbott Cardiovascular Systems Inc. Scaffolds having radiopaque markers
US10070975B2 (en) 2016-11-21 2018-09-11 Abbott Cardiovascular Systems Inc. Stents with radiopaque markers

Similar Documents

Publication Publication Date Title
US4857142A (en) Method and apparatus for controlling simultaneous etching of front and back sides of wafers
US4856419A (en) Process for collecting a contaminated substance and apparatus thereof
US6450869B1 (en) Hand held cutting tool and attachment therefor
US5970574A (en) Apparatus and method for cleaning surfaces by removing and containing waste
US5097108A (en) Conversion convergent nozzle assembly
US5535836A (en) Total recovery drill
US5041710A (en) Conversion convergent nozzle assembly
US5342349A (en) Apparatus and system for coordinating a surgical plume evacuator and power generator
US5015822A (en) Nozzle structure in welding gun
US5762691A (en) Aerodynamic-electrostatic particulate collection system
JPH06108257A (en) Atmospheric pressure blow-off plasma reaction device
US5162632A (en) Plasma torch having heat shield for torch body
US4797528A (en) Vacuum carbon arc metal removal process and apparatus
US3204075A (en) Electric arc torch
US5152453A (en) Laminar barrier inerting for leading and/or trailing shield in welding application
US3775587A (en) Devices for evacuation of impurities forming in welding processes
USD417459S (en) Electrode for a plasma arc torch
USD414788S (en) Nozzle for a plasma arc torch
JP2000317671A (en) Laser welding method and its device
US3729611A (en) Plasma generator
JPH05309510A (en) Electric drill
USD371058S (en) Electrode tip for a plasma arc cutting torch
JP2004001043A (en) Method and device for purging fume in laser beam machining
JPH02164477A (en) Base treatment device
JPH10325A (en) Device for removing volatile organic compound in air by using discharge plasma