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1. 发明专利

JPS53127346A HIGH SPEED SUBMERGED ARC WELDING METHOD FOR GROOVE 失效
公开(公告)号：JPS53127346A
公开(公告)日：1978-11-07
申请号：JP4205277
申请日：1977-04-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , WADA KOUICHI , HIROMOTO NOBUMI , SATOU MASAHIKO , MORIYA MUNEO
IPC分类号： B23K9/18 , B23K9/00
摘要： PURPOSE:To carry out a high speed welding, maintaining a smooth weld bead, by making perpendiculary cut tip face of the material to be welded as I groove, provided only an adequate gap corresponding the thickness of plate and next, submerging fused tip end of welding wire deeper than the surface of the material to be welded and moreover, welding by using a higher current and lower voltage than usual method.

2. 发明专利

JPS5982168A CUTTING METHOD OF METALLIC PIPE 失效
公开(公告)号：JPS5982168A
公开(公告)日：1984-05-12
申请号：JP19254782
申请日：1982-11-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： TANAKA KISABUROU , OODO TOYOHIKO , SATOU MASAHIKO
IPC分类号： B23K7/00 , B23K7/10 , B23K10/00 , B23K26/00 , B23K26/38 , B23Q11/00 , B23Q11/10
摘要： PURPOSE:To prevent sticking of the resulted product of cutting on the inside surface of a pipe to be cut by filling water roughly full in said pipe and cooling and solidifying quickly the molten metal or slag generated in the stage of cutting the pipe by the water in the pipe. CONSTITUTION:A pipe 1 to be cut is passed through the central position of annular rotators 6 of respective pipe holders 5. Said pipe is held at three or four points by pawls 61 and further the end of the pipe is pressed to a holder 7 for rotating and driving and is held at the center of the revolving shaft by a pawl 71. Water is then passed in the pipe 1 through the hole 8 at the center of the holder 7 from a piping 10 and the outflow of the water 2 is decreased by a weir 11 to fill mostly the inside of the pipe with the water 2. Then, the cutting of the pipe is started by a plasma cutting method and the molten metal or slag 3 generated by the cutting is quickly cooled and solidified by the water 2 in the pipe. The moltem metal or slag is thus released together with the running water to the outside without sticking the resulted product of cutting on the inside surface of the pipe.

3. 发明专利

JPS55147480A WIND RESISTANT NOZZLE FOR GAS SHIELDED WELDING 失效
公开(公告)号：JPS55147480A
公开(公告)日：1980-11-17
申请号：JP5528079
申请日：1979-05-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , WADA KOUICHI , SATOU MASAHIKO , YAMAOKA TAKAYOSHI
IPC分类号： B23K9/29 , B23K9/26
摘要： PURPOSE:To prevent the disturbance of shielding gas flow owing to strong wind and make possible gas shielded welding at all times by forming the nozzle for gas shielded welding to a double barrel system and spouting part of gas as surrounding gas on the outer side of the shielding gas. CONSTITUTION:An end part 3 is mounted to the end of an outer barrel 1 of the nozzle and an inner barrel 6 is inserted to the inner side of the outer barrel. These are then mounted by matching the key 7 and key hole 8 at the top end to assemble the nozzle. This is then connected to a commercially marketed welding torch 15 by means of a screw or quick joint 17. CO2 gas is supplied from the center of the welding torch 15. Part 19 of the supplied gas 18 passes through a branch effluent port 10 and spouts from the surrounding gas spouting ports, thereby forming a surrounding gas curtain 19'. The rest 20 of the gas forms the shielding gas 20' of the weld zone. The shielding gas 20' is protected by the surrounding gas curtain 19' to prevent the entry of the wind from the side into the weld zone and the shielding gas 20' is able to shield the weld zone perfectly from the outside wind and therefore the superior weld zone is formed.

4. 发明专利

JPS59223162A METHOD OF CUTTING METALLIC TUBE 失效
公开(公告)号：JPS59223162A
公开(公告)日：1984-12-14
申请号：JP9828183
申请日：1983-06-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： TANAKA KISABUROU , OODO TOYOHIKO , SATOU MASAHIKO
IPC分类号： B23K7/10 , B23K7/00 , B23Q11/00 , B23Q11/10 , B23K9/00 , B23K7/04
摘要： PURPOSE:To remove cutting scrap easily and automate tube cutting by passing flowing water in a metallic tube which is a laid down material to be cut, placing a copper plate under the surface of the water, and cutting the metallic tube by a torch outside of the tube just above the copper plate while rotating the tube. CONSTITUTION:A metallic tube 1 to be cut is laid down on supporting rollers 2 and rotated holding an end of the tube 1 by a gripper 3. Water 4 flows in the tube 1 from a water inlet 7, and a copper plate 5 is placed under the surface of the water. The copper plate 5 is provided with lower rollers 6 and moved relatively when the tuve 1 rotates to maintain horizontal state. A cutting torch 8 is provided outside the tube just above the copper plate 5, and the tube 1 is cut while rotating. Cutting scrap 9 are cooled by water 4 and reaches on the copper plate 5. Since the copper plate 5 is always cooled by water 4, and has larger heat conductivity compared with steel, the scrap do not adhere to the copper plate 5 and discharged by flowing water.

5. 发明专利

JPS59212175A Carbon dioxide arc welding method with two electrodes 失效
标题翻译：具有两个电极的二氧化碳弧焊方法
公开(公告)号：JPS59212175A
公开(公告)日：1984-12-01
申请号：JP8630083
申请日：1983-05-17
申请人： Mitsubishi Heavy Ind Ltd
发明人： HIROMOTO NOBUMI , NAGAREDA MASAZUMI , SATOU MASAHIKO
IPC分类号： B23K9/16 , B23K9/04 , B23K9/173
CPC分类号： B23K9/04
摘要： PURPOSE:To eliminate the need for bead correction by arranging a DC preceding electrode and an AC succeeding electrode contg. an arc stabilizer in series at a prescribed spacing and transferring the electrodes over the weld zone thereby increasing depth of penetration and stabilizing the build-up with the relieved magnetic blow. CONSTITUTION:A preceding electrode 12 performs deep welding with a welding wire 12a connected to a DC power source 11 in CO2 arc welding. A succeeding electrode 14 apart a prescribed distance therefrom is a cord wire 14a contg. a stabilizer connected to an AC power source 13 and performs welding without causing magnetic blow and without forming a build-up bead. The weld zone is therefore substantially deep, the amt. of welding is increased without need for bead correction and the welding efficiency is improved.
摘要翻译：目的：通过布置直流前电极和交流后续电极来消除对珠校正的需要。电弧稳定器以规定的间隔串联并将电极转移到焊接区上，从而增加穿透深度并且通过缓和的磁力冲击来稳定积聚。构成：前面的电极12通过在二氧化碳电弧焊接中与直流电源11连接的焊丝12a进行深焊。距离其规定距离的后续电极14是帘线14a，连接到AC电源13的稳定器，并且执行焊接而不引起磁打击并且不形成积聚珠。因此，焊接区域基本上是深的。的焊接增加，而不需要焊道校正，并且提高了焊接效率。

6. 发明专利

JPS58173085A VERTICAL WELDING METHOD IN SEMIAUTOMATIC ARC WELDING OF GAS SHIELDED CONSUMABLE ELECTRODE TYPE 失效
公开(公告)号：JPS58173085A
公开(公告)日：1983-10-11
申请号：JP5228882
申请日：1982-04-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： TANAKA KISABUROU , MANABE YUKIO , OKA TAMOTSU , SATOU MASAHIKO
IPC分类号： B23K9/02 , B23K9/16
摘要： PURPOSE:To prevent the sagging down of a molten metal in vertical welding and to obtain a smooth weld bead, by providing an auxiliary nozzle in the inner lower part of a gas nozzle, ejecting a gaseous flow of a high velocity therefrom, and applying the gaseous flow to weld metal from below. CONSTITUTION:An auxiliary nozzle 10 is provided below a torch nozzle 7 in vertical welding in automatic arc welding of a gas shielded consumable electrode type. A high velocity gas 11 such as a gas contg. small amts. of carbon dioxide and oxygen than in an ordinary shielding gas or an inert gas is blown from the nozzle 10 to weld metal 3 from below to prevent the sagging down of the metal 3. Upward directed force is applied to the metal 3 by the blowing of such gaseous flow and the solidification of the metal 3 is accelerated. The good multilayered weld zone free from lack of fusion is obtained by the above- mentioned method.

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