JP3249421B2 - Underwater cutting method and device - Google Patents
Underwater cutting method and deviceInfo
- Publication number
- JP3249421B2 JP3249421B2 JP06309597A JP6309597A JP3249421B2 JP 3249421 B2 JP3249421 B2 JP 3249421B2 JP 06309597 A JP06309597 A JP 06309597A JP 6309597 A JP6309597 A JP 6309597A JP 3249421 B2 JP3249421 B2 JP 3249421B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- underwater
- cut
- suction
- box
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 239000012265 solid product Substances 0.000 claims description 25
- 239000000047 product Substances 0.000 claims description 23
- 238000011084 recovery Methods 0.000 claims description 11
- 230000000717 retained effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 238000011109 contamination Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 101100008044 Caenorhabditis elegans cut-1 gene Proteins 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 101100008046 Caenorhabditis elegans cut-2 gene Proteins 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、原子力プラントの
改造工事、原子炉の廃炉解体作業、沈没船の解体作業等
に適用される水中切断方法及び装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for underwater cutting applied to remodeling of a nuclear power plant, demolition of a nuclear reactor, demolition of a sunken ship, and the like.
【０００２】[0002]
【従来の技術】従来の水中切断装置（水中放電切断装
置）を図４により説明すると、保持具３により把持した
放電切断電極２をサーボモータ（図示せず）により被切
断物１の方向（下向き）に送って、被切断物１を水中切
断する。電極２及び被切断物１は、放電加工電源１９に
接続されている。2. Description of the Related Art A conventional underwater cutting device (underwater discharge cutting device) will be described with reference to FIG. 4. The discharge cutting electrode 2 gripped by a holder 3 is moved downward (downward) by a servomotor (not shown). ) To cut the object 1 underwater. The electrode 2 and the object 1 are connected to an electric discharge machining power supply 19.
【０００３】この水中切断時には、２次生成物（スパッ
タ状固形生成物、Ｈ2 を含むガス、ヒューム、水中浮遊
物など）が発生する。この２次生成物は、放電切断電極
２の内部から被切断物１の切断対象個所へ供給された加
圧水ジェットにより除去されて、水中に飛散する。この
水中に飛散した２次生成物のうち、水中に浮遊しない大
粒径のスパッタ状固形生成物（粒径１ｍｍ〜数ｍｍの切
削屑）は、被切断物１の下部に配設したトレイ１５に落
下して回収される。[0003] During this underwater cutting, secondary product (sputter-like solid product, a gas containing H 2, fume, etc. floating materials) occurs. This secondary product is removed from the inside of the discharge cutting electrode 2 by the pressurized water jet supplied to the cutting target portion of the workpiece 1 and scatters in water. Among the secondary products scattered in the water, a sputter-like solid product having a large particle size that does not float in the water (cutting chips having a particle size of 1 mm to several mm) is supplied to a tray 15 disposed below the workpiece 1. It is dropped and collected.
【０００４】また水中に飛散した２次生成物のうち、水
中に浮遊する小粒径の固形生成物、Ｈ2 を含むガス、エ
アロゾル（ヒューム）は、水とともに吸引ノズル１６→
ポンプ１７により吸引された後、タンク１８へ排出され
て、回収される。[0004] Among the secondary products scattered in the water, solid products having a small particle diameter floating in the water, gas containing H 2 , and aerosol (fume) are supplied to the suction nozzle 16 together with the water.
After being sucked by the pump 17, it is discharged to the tank 18 and collected.
【０００５】[0005]
【発明が解決しようとする課題】前記図４に示す従来の
水中切断装置では、放電切断電極２により被切断物１を
水中切断し、このとき発生する２次生成物を加圧水ジェ
ットにより除去しているので、（１）切断対象個所から
除去した２次生成物を完全に回収して、水中切断環境の
汚濁を防止する。（２）２次生成物（特にスパッタ状固
形生成物）の被切断物１への付着を防止する必要があ
る。In the conventional underwater cutting apparatus shown in FIG. 4, the object to be cut 1 is cut underwater by the discharge cutting electrode 2, and the secondary products generated at this time are removed by a pressurized water jet. Therefore, (1) the secondary products removed from the cutting target location are completely recovered to prevent contamination of the underwater cutting environment. (2) It is necessary to prevent the secondary products (particularly, sputtered solid products) from adhering to the workpiece 1.
【０００６】本発明は前記の問題点に鑑み提案するもの
であり、その目的とする処は、水中切断環境の汚濁を
防止でき、水中に浮遊しない大粒径の固形生成物でも
容易に回収できる水中切断方法及びこの水中切断方法を
円滑に実施できる水中切断装置を提供しようとする点に
ある。The present invention has been made in view of the above problems, and has as its object to prevent contamination of an underwater cutting environment and to easily recover a solid product having a large particle size which does not float in water. An object of the present invention is to provide an underwater cutting method and an underwater cutting device capable of smoothly performing the underwater cutting method.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明の水中切断方法は、被切断物の切断対象箇
所を、上部クランプボックス及び下部クランプボックス
によりクランプして包囲し、切断手段により水中切断
し、このとき発生する生成物を加圧水ジェットにより切
断部から除去し、除去した生成物をボックス内の水とと
もに吸引して回収することを特徴としている（請求項
１）。In order to achieve the above object, the underwater cutting method according to the present invention provides a method for cutting an object to be cut.
Place, upper clamp box and lower clamp box
It is characterized in that the product generated at this time is removed from the cut portion by a pressurized water jet, and the removed product is collected by suctioning with the water in the box. (Claim 1).
【０００８】前記請求項１記載の水中切断方法におい
て、水中切断時に発生する生成物のうち、水中に浮遊し
ない固形生成物を吸引回収経路の途中に滞留させて回収
する（請求項２）。また本発明の水中切断装置は、被切
断物の切断対象個所を包囲するクランプ可能な上部クラ
ンプボックス及び下部クランプボックスと、被切断物の
切断対象個所を切断する切断手段と、被切断物の切断対
象個所に加圧水ジェットを供給する加圧水ジェット供給
ノズルと、ボックス内の水を水中切断時に発生する生成
物とともに吸引して回収する吸引回収手段と、吸引回収
手段の途中に設けた固形生成物の滞留部とにより構成し
ている（請求項３）。In the underwater cutting method according to the first aspect, of the products generated during the underwater cutting, a solid product that does not float in the water is collected and retained in the suction and recovery path (claim 2). The underwater cutting apparatus of the present invention, the switching
Clampable upper clamp surrounding the object to be cut
Pump box and lower clamp box, cutting means for cutting the cut target part of the cut object, pressurized water jet supply nozzle for supplying a pressurized water jet to the cut target part of the cut object, and water generated in the box during underwater cutting And suction means for sucking and collecting the solid product together with the product to be collected, and a solid product retention section provided in the middle of the suction and collection means.
【０００９】[0009]
【発明の実施の形態】次に本発明の水中切断方法の実施
に使用する水中切断装置を図１〜図３に示す一実施例に
より説明する。被切断物１は、本水中切断装置と機械的
に一体のクランプ治具（図示せず）により把持固定され
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an underwater cutting apparatus used for carrying out the underwater cutting method of the present invention will be described with reference to an embodiment shown in FIGS. The workpiece 1 is gripped and fixed by a clamp jig (not shown) mechanically integrated with the underwater cutting device.
【００１０】放電切断電極（切断手段）２は、保持具３
により把持され、保持具３は、サーボモータ５の送り機
構４の下端部に取付けられており、これらの放電切断電
極２及び保持具３が上部クランプボックス６の内部に位
置している。サーボモータ５は、上部クランプボックス
６の上面に取付けられており、このサーボモータ５が上
部クランプボックス６外に位置している。The discharge cutting electrode (cutting means) 2 includes a holder 3
The holder 3 is attached to the lower end of the feed mechanism 4 of the servomotor 5, and the discharge cutting electrode 2 and the holder 3 are located inside the upper clamp box 6. The servo motor 5 is mounted on the upper surface of the upper clamp box 6, and the servo motor 5 is located outside the upper clamp box 6.
【００１１】被切断物１の切断部を包囲する上部クラン
プボックス６と下部クランプボックス８とは、ヒンジ機
構１１を介して開閉可能に連結されている。また上部ク
ランプボックス６と下部クランプボックス８との間に開
閉シリンダ１２が介装されている。上部クランプボック
ス６と下部クランプボックス８との被切断物クランプ部
には、クランプボックス６、８と被切断物１との間を流
体密にシールする伸縮可能なスポンジ７が取付けられて
いる。An upper clamp box 6 and a lower clamp box 8 surrounding the cut portion of the workpiece 1 are connected via a hinge mechanism 11 so as to be openable and closable. An opening / closing cylinder 12 is interposed between the upper clamp box 6 and the lower clamp box 8. An expandable sponge 7 that seals the space between the clamp boxes 6 and 8 and the workpiece 1 in a fluid-tight manner is attached to the workpiece clamp portion between the upper clamp box 6 and the lower clamp box 8.
【００１２】上部クランプボックス６のうち、放電切断
電極２の表側近くの上部クランプボックス６部分には、
加圧水ジェット供給ノズル９が取付けられている。下部
クランプボックス８の底部には、吸引ホース１３が取付
けられ、この吸引ホース１３の他端部には、切削屑の滞
留部１５を介して回収ホース１４が取付けられ、この回
収ホース１４の他端部には、吸引ポンプ（図示せず）が
取付けられており、クランプボックス６、８の内部が、
吸引ホース１３と滞留部１５と回収ホース１４とを介し
て吸引ポンプに接続している。In the upper clamp box 6 near the front side of the discharge cutting electrode 2,
A pressurized water jet supply nozzle 9 is attached. A suction hose 13 is attached to the bottom of the lower clamp box 8, and a collection hose 14 is attached to the other end of the suction hose 13 through a retaining portion 15 for cutting chips. A suction pump (not shown) is attached to the part, and the insides of the clamp boxes 6 and 8 are
It is connected to a suction pump via a suction hose 13, a stay 15, and a collection hose 14.
【００１３】放電切断電極２による被切断物１の切断状
況は、上部クランプボックス６の内部に設けた監視カメ
ラ１０により確認可能である。次に前記水中切断装置の
作用を具体的に説明する。図３は、前記水中切断装置が
水中にあって、下部クランプボックス８が開いている状
態を示している。この状態から開閉シリンダ１２を伸長
方向に作動して、下部クランプボックス８をヒンジ機構
１１を中心に上方に回転させ、下部クランプボックス８
を閉じて、被切断物１の切断対象個所を上部クランプボ
ックス６と下部クランプボックス８とにより包囲する。
このとき、上部クランプボックス６と下部クランプボッ
クス８とのスポンジ７を被切断物１に密接させて、ボッ
クス６、８内を密閉する。The state of cutting of the workpiece 1 by the discharge cutting electrode 2 can be confirmed by a monitoring camera 10 provided inside the upper clamp box 6. Next, the operation of the underwater cutting device will be specifically described. FIG. 3 shows a state in which the underwater cutting device is underwater and the lower clamp box 8 is open. From this state, the opening / closing cylinder 12 is operated in the extending direction, and the lower clamp box 8 is rotated upward around the hinge mechanism 11 so that the lower clamp box 8 is rotated.
Is closed, and the portion to be cut of the workpiece 1 is surrounded by the upper clamp box 6 and the lower clamp box 8.
At this time, the sponge 7 of the upper clamp box 6 and the lower clamp box 8 is brought into close contact with the workpiece 1, and the inside of the boxes 6, 8 is sealed.
【００１４】次いでサーボモータ５を駆動して、その回
転を送り機構４を介して保持具３に伝え、保持具３と放
電切断電極２とを被切断物１の方向に下降させて、被切
断物１の切断対象個所を水中切断する。このとき、加圧
水ジェット供給ノズル９から放電切断電極２の表側へ加
圧水ジェットを供給しているので、水中切断時に発生す
る２次生成物、特にスパッタ状固形生成物（溶融金属）
が被切断物１の表面に落下しても、加圧水ジェットによ
り直ちに吹き飛ばされて、放電切断電極２の表側から裏
側へ排除される。そのため、スパッタ状固形生成物が被
切断物１の表面（電極表側表面）に付着・凝固しない。
この点をさらに説明する。Next, the servo motor 5 is driven, the rotation is transmitted to the holder 3 via the feed mechanism 4, and the holder 3 and the discharge cutting electrode 2 are lowered in the direction of the object 1 to be cut. An object 1 to be cut is cut underwater. At this time, since the pressurized water jet is supplied from the pressurized water jet supply nozzle 9 to the front side of the discharge cutting electrode 2, a secondary product generated during underwater cutting, particularly a sputtered solid product (molten metal)
Is dropped by the pressurized water jet immediately even if it falls on the surface of the workpiece 1, and is discharged from the front side to the back side of the discharge cutting electrode 2. Therefore, the sputtered solid product does not adhere to and solidify on the surface of the workpiece 1 (the front surface of the electrode).
This point will be further described.
【００１５】上記スパッタ状固形生成物は、溶融状態で
飛散する。このスパッタ状固形生成物（溶融金属）の表
面は、微視的には水の気化層で覆われており、このスパ
ッタ状固形生成物（溶融金属）が被切断物１の表面に付
着・凝固すると、水中切断後、水中に引き続き残る被切
断物１の表面から剥離して、ルーズパーツになるので、
スパッタ状固形生成物（溶融金属）を被切断物１の表面
に付着・凝固させないようにする必要がある。この点に
ついては上記のように加圧水ジェット供給ノズル９から
放電切断電極２の表側へ加圧水ジェットを供給している
ので、水中切断時に発生する２次生成物、特にスパッタ
状固形生成物（溶融金属）が被切断物１の表面に落下し
ても、加圧水ジェットにより直ちに吹き飛ばされて、放
電切断電極２の表側から裏側へ排除される。そのため、
スパッタ状固形生成物が被切断物１の表面（電極表側表
面）に付着・凝固しない。The sputtered solid product is scattered in a molten state. The surface of the sputtered solid product (molten metal) is microscopically covered with a vaporized layer of water, and the sputtered solid product (molten metal) adheres and solidifies on the surface of the workpiece 1. Then, after being cut underwater, it is peeled off from the surface of the object to be cut 1 which remains in the water and becomes a loose part.
It is necessary to prevent the sputtered solid product (molten metal) from adhering and solidifying on the surface of the workpiece 1. Regarding this point, since the pressurized water jet is supplied from the pressurized water jet supply nozzle 9 to the front side of the discharge cutting electrode 2 as described above, secondary products generated during underwater cutting, particularly sputtered solid products (molten metal) Is dropped by the pressurized water jet immediately even if it falls on the surface of the workpiece 1, and is discharged from the front side to the back side of the discharge cutting electrode 2. for that reason,
The sputtered solid product does not adhere to and solidify on the surface of the workpiece 1 (the front surface of the electrode).
【００１６】またこのとき、放電切断電極２の裏側に排
除したスパッタ状固形生成物を含む２次生成物をボック
ス６、８内の水とともに吸引ホース１３→滞留部１５→
回収ホース１４→吸引ポンプへ吸引して、２次生成物を
回収する。その際、水中切断時に発生するＨ2 を含むガ
スも同時に吸引、回収して、安全性を確保する。また加
圧水ジェットの流量よりも大量の水を吸引して、ボック
ス６、８内の水を外に漏らさないようにする。At this time, the secondary product containing the sputtered solid product removed on the back side of the discharge cutting electrode 2 is sucked together with the water in the boxes 6 and 8 into the suction hose 13 → the stagnant portion 15 →
The collection hose 14 is sucked into the suction pump to collect the secondary product. At this time, the gas containing H 2 generated during underwater cutting is also sucked and collected at the same time to ensure safety. Further, a larger amount of water than the flow rate of the pressurized water jet is sucked to prevent water in the boxes 6 and 8 from leaking out.
【００１７】上記吸引回収経路では、下部クランプボッ
クス８から滞留部１５までの吸引ホース１３の直径を細
くして、吸引ホース１３の流速を大きくしており、水中
に浮遊しない大径粒の固形生成物を滞留部１５に滞留さ
せる一方、滞留部１５から大気側までの回収ホース１４
の直径は、圧損を考慮して、吸引ホース１３の直径より
も少し大きくしている。In the suction / recovery path, the diameter of the suction hose 13 from the lower clamp box 8 to the stagnant portion 15 is reduced to increase the flow rate of the suction hose 13 so that large-diameter solids that do not float in the water are formed. The collection hose 14 extends from the stagnation portion 15 to the atmosphere while the stagnation material is retained in the stagnation portion 15.
Is slightly larger than the diameter of the suction hose 13 in consideration of pressure loss.
【００１８】上記滞留部１５は、水中切断終了後、大気
中に引き上げて、滞留部１５内の大粒径の固形生成物を
回収する。以上、本発明を水中放電切断装置により説明
したが、本発明は他の熱的切断装置（例えばプラズマ切
断装置）にも適用可能である。After the end of underwater cutting, the stagnation section 15 is raised to the atmosphere to collect solid products having a large particle size in the stagnation section 15. As described above, the present invention has been described by using the underwater discharge cutting device, but the present invention is also applicable to other thermal cutting devices (for example, a plasma cutting device).
【００１９】[0019]
【発明の効果】本発明の水中切断方法は前記のように被
切断物の切断対象個所を開閉可能なボックスにより包囲
して、切断手段により水中切断し、このとき発生する生
成物を加圧水ジェットにより切断部から除去し、除去し
た生成物をボックス内の水とともに吸引して回収するの
で、水中切断環境の汚濁を防止できる。According to the underwater cutting method of the present invention, as described above, the object to be cut is surrounded by an openable and closable box and cut underwater by cutting means, and the product generated at this time is compressed by a pressurized water jet. Since it is removed from the cutting part and the removed product is sucked and collected together with the water in the box, contamination of the underwater cutting environment can be prevented.
【００２０】また水中切断時に発生する生成物のうち、
水中に浮遊しない大粒径の固形生成物を吸引回収経路の
途中まで吸引し、そこに滞留させて、回収する。その場
合、水中に浮遊しない大粒径の固形生成物を吸引回収経
路の排出側端部まで吸引して回収しようとすると、吸引
側から排出側までの吸引回収経路の全域において大きな
吸引力を必要とするが、水中に浮遊しない大粒径の固形
生成物を吸引回収経路の途中まで吸引し、そこに滞留さ
せて、回収するので、大粒径の固形生成物でも容易に回
収できる。Among the products generated during underwater cutting,
A solid product having a large particle size that does not float in water is sucked halfway through the suction and recovery path, stays there, and is recovered. In this case, if a large-sized solid product that does not float in water is to be sucked and collected to the discharge side end of the suction and recovery path, a large suction force is required in the entire area of the suction and recovery path from the suction side to the discharge side. However, since a solid product having a large particle size that does not float in water is sucked halfway through the suction and recovery path, stayed there, and collected, even a solid product having a large particle size can be easily collected.
【００２１】また本発明の水中切断装置は、被切断物の
切断部を包囲する開閉可能なボックスと、被切断物の切
断対象個所を切断する切断手段と、被切断物の切断対象
個所に加圧水ジェットを供給する加圧水ジェット供給ノ
ズルと、ボックス内の水を水中切断時に発生する生成物
とともに吸引して回収する吸引回収手段と、吸引回収手
段の途中に設けた固形生成物の滞留部とにより構成した
ので、前記水中切断方法を円滑に実施できる。Further, the underwater cutting apparatus of the present invention comprises an openable / closable box surrounding a cutting portion of the object, a cutting means for cutting a point of the object to be cut, and pressurized water at a point of the object to be cut. It is composed of a pressurized water jet supply nozzle that supplies a jet, suction and recovery means that suctions and recovers water in the box together with products generated during underwater cutting, and a solid product retention section provided in the middle of the suction and recovery means. Therefore, the underwater cutting method can be performed smoothly.
【図１】本発明の水中切断方法の実施に使用する水中切
断装置の一実施例を示す縦断一側面図である。FIG. 1 is a vertical sectional side view showing one embodiment of an underwater cutting device used for carrying out the underwater cutting method of the present invention.
【図２】同水中切断装置の縦断他側面図である。FIG. 2 is another longitudinal side view of the underwater cutting device.
【図３】同水中切断装置のボックス開状態を示す縦断他
側面図である。FIG. 3 is a vertical cross-sectional side view showing a box opened state of the underwater cutting device.
【図４】従来の水中切断装置を示す縦断側面図である。FIG. 4 is a vertical sectional side view showing a conventional underwater cutting device.
１ 被切断物 ２ 切断手段（放電切断電極） ３ 保持具 ４ 送り機構 ５ サーボモータ ６ 上部クランプボックス ７ スポンジ ８ 下部クランプボックス ９ 加圧水ジェット供給ノズル １０ 監視カメラ １１ ヒンジ機構 １２ 開閉シリンダ １３ 吸引ホース １４ 回収ホース １５ 滞留部 REFERENCE SIGNS LIST 1 object to be cut 2 cutting means (discharge cutting electrode) 3 holder 4 feed mechanism 5 servo motor 6 upper clamp box 7 sponge 8 lower clamp box 9 pressurized water jet supply nozzle 10 monitoring camera 11 hinge mechanism 12 opening / closing cylinder 13 suction hose 14 collection Hose 15 Detention part
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−187298（ＪＰ，Ａ) 特開 昭62−174696（ＪＰ，Ａ) 特開 平１−184500（ＪＰ，Ａ) 実開 昭57−63697（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) G21F 9/30 531 G21F 9/30 535 G21F 9/30 ZAB ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-187298 (JP, A) JP-A-62-174696 (JP, A) JP-A-1-184500 (JP, A) 63697 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) G21F 9/30 531 G21F 9/30 535 G21F 9/30 ZAB
Claims (3)
プボックス及び下部クランプボックスによりクランプし
て包囲し、切断手段により水中切断し、このとき発生す
る生成物を加圧水ジェットにより切断部から除去し、除
去した生成物をボックス内の水とともに吸引して回収す
ることを特徴とした水中切断方法。An object to be cut is an upper clamp.
Clamp box and lower clamp box.
Underwater cutting by cutting means , the product generated at this time is removed from the cut portion by a pressurized water jet, and the removed product is suctioned and collected together with the water in the box, and the underwater cutting method is characterized in that .
ち、水中に浮遊しない固形生成物を吸引回収経路の途中
に滞留させて回収する請求項１記載の水中切断方法。2. The underwater cutting method according to claim 1, wherein, of the products generated during the underwater cutting, a solid product that does not float in the water is collected and retained in the middle of the suction and recovery path.
ンプ可能な上部クランプボックス及び下部クランプボッ
クスと、被切断物の切断対象個所を切断する切断手段
と、被切断物の切断対象個所に加圧水ジェットを供給す
る加圧水ジェット供給ノズルと、ボックス内の水を水中
切断時に発生する生成物とともに吸引して回収する吸引
回収手段と、吸引回収手段の途中に設けた固形生成物の
滞留部とにより構成したことを特徴とする水中切断装
置。3. A classifier which surrounds a cutting target portion of an object to be cut.
Upper clamp box and lower clamp box
And a cutting means for cutting a target portion of the object to be cut, a pressurized water jet supply nozzle for supplying a pressurized water jet to the target portion of the cut object, and suction of water in the box together with products generated during underwater cutting. An underwater cutting device, comprising: a suction / recovery means for recovering and collecting; and a solid product retaining section provided in the middle of the suction / recovery means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06309597A JP3249421B2 (en) | 1997-03-17 | 1997-03-17 | Underwater cutting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06309597A JP3249421B2 (en) | 1997-03-17 | 1997-03-17 | Underwater cutting method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10260298A JPH10260298A (en) | 1998-09-29 |
| JP3249421B2 true JP3249421B2 (en) | 2002-01-21 |
Family
ID=13219413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06309597A Expired - Fee Related JP3249421B2 (en) | 1997-03-17 | 1997-03-17 | Underwater cutting method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3249421B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4288223B2 (en) * | 2004-10-18 | 2009-07-01 | 株式会社ソディック | Method for processing arbitrary shape on workpiece made of conductive material and composite processing apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5763697U (en) * | 1980-10-02 | 1982-04-15 | ||
| JPS59187298A (en) * | 1983-04-08 | 1984-10-24 | 株式会社日立製作所 | Highly radioactive solid waste cutting equipment |
| JPH0711593B2 (en) * | 1986-01-29 | 1995-02-08 | 株式会社日立製作所 | Radioactive solid waste cutting device |
| JP2583263B2 (en) * | 1988-01-18 | 1997-02-19 | 株式会社日立製作所 | Highly radioactive solid waste cutting equipment |
-
1997
- 1997-03-17 JP JP06309597A patent/JP3249421B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10260298A (en) | 1998-09-29 |
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