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131. 发明专利

JPS5564984A FOIL SEAM WELDING DEVICE 失效
公开(公告)号：JPS5564984A
公开(公告)日：1980-05-16
申请号：JP13725778
申请日：1978-11-09
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , WADA KOUICHI , YOSHIDA YASUYUKI , OKA TAMOTSU , MANABE YUKIO
IPC分类号： B23K11/06
摘要： PURPOSE:To smoothly perform foil seam welding of thick plate materials by providing more than a pair of rotary auxiliary electrodes before the welding advance direction of a pair of rotary main electrodes which sandwich the base metals by way of foils and stepwise elevating the temperature in the base metal while suppressing the temperature rise of the foils. CONSTITUTION:A pair of rotary auxiliary electrodes 9 which disposed two base metals 1 of plates by way of foils 2 similar to a pair of rotary electrodes 8 which sandwich the butt portions of said base metals 1 by way of the foils 2 are disposed slightly before the welding advance direction of said electrodes 8. Even at the welding of the plates by this device, current may be supplied at the permissible current value or less. While the base metals 1 and foils 2 are passing the electrodes 9, the foils 2 are cooled by the contact with the electrodes 9 whereby their temperature rise is suppressed and with the foils being held kept at a low temperature state only the central part of the base metals 1 is made to a high temperature state. Further while the base metals 1 and foils 2 are passing the electrodes 8, the foils 2 hardly cause temperature rise as compared to that while they are passing the electrodes 9 but the base metals 1 are difficult to receive cooling action from the electrodes 8 and therefore they rise further to a higher temperature state, to the melting point or more of steel, owing to supply current I', in which state welding may be accomplished.

132. 发明专利

JPS5564983A FOIL SEAM WELDING DEVICE 失效
公开(公告)号：JPS5564983A
公开(公告)日：1980-05-16
申请号：JP13725678
申请日：1978-11-09
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , WADA KOUICHI , YOSHIDA YASUYUKI , OKA TAMOTSU , MANABE YUKIO
IPC分类号： B23K11/06
摘要： PURPOSE:To perform foil seam welding in which high temperature cracking is difficult to occur by providing more than a pair of auxiliary roller electrodes of a smaller current supply capacity than that of a pair of main roller electrodes for welding which sandwich the work by way of foils 3 slightly behind said main electrodes. CONSTITUTION:This foil seam welding device has main roller electrodes 2 which sandwich the work 1 by way of foils 3 and more than a pair of auxiliary roller electrodes 4 of a smaller current supply capacity than that of the electrodes 2 installed slightly behind these. Now, the work 1 is fed in or while it is being drawn in by the main roller electrodes 2, current is supplied to the respective roller electrodes 2, 4. As a result of this, the welding similar to conventional foil seam welding is accomplished at the main electrode 2 portions and at the same time the welding nugget W formed here is heated by the postheating current I' flowed between the electrodes 4 behind these. Hence, rapid cooling of the weld zone is reduced and the occurrence of high temperature cracking may be prevented even with welding of the butt joint of relatively thick steel plates.

133. 发明专利

JPS54126649A METHOD AND APPARATUS FOR REMOVING WELDING FUME 失效
公开(公告)号：JPS54126649A
公开(公告)日：1979-10-02
申请号：JP3509778
申请日：1978-03-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , FUKAYA YASUHIRO , NAGAREDA MASAZUMI
IPC分类号： B23K9/32 , B08B15/04
摘要： PURPOSE:To automatically move the hood to the optimum position, and to efficiently, continuously remove the welding fume, by detecting the light emitted from the weld zone while the welding continues, and by controlling the position of the hood covering the weld zone for sucksing the welding fume, according to this detected light signal. CONSTITUTION:When the welding starts, the welding arc 2 emits the light 3 between the welding rod 1 and the metal to be welded, and generates the welding fume. The fume processor 12 is actuated, and the welding fume is cleaned by the fume processor 12 through the hood 10 and the duct 11. When the light 3 emitted from the arc 2 is received by the light detecting plane of the photodetector 4 of the hood 10, an electric current flows through this photodetector 4 and a micro-voltage generates. This voltage is amplified by the amplifier 6a up to the voltage V which then actuates the relay switch 6b; hereby, the DC motor of the truck driver 9 starts and the truck 13 moves forward.

134. 发明专利

JPS5439341A DIFFUSION WELDING OF COPPER AND STAINLESS STEEL 失效
公开(公告)号：JPS5439341A
公开(公告)日：1979-03-26
申请号：JP10592577
申请日：1977-09-05
申请人： MITSUBISHI HEAVY IND LTD
发明人： UTO YOSHIMITSU , OOMAE TAKASHI , FUKAYA YASUHIRO , YOSHIDA YASUYUKI
IPC分类号： B23K20/00 , B23K20/16 , B23K20/227 , B23K35/00
摘要： PURPOSE:To provide a clad palte with a good joint performance with a thin layer of metal or alloy limited in gas content an insert material in diffusion welding of copper and stainless steel.

135. 发明专利

JPS5181752A 失效
公开(公告)号：JPS5181752A
公开(公告)日：1976-07-17
申请号：JP592375
申请日：1975-01-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： NISHIO YASUHIRO , OOMAE TAKASHI , YOSHIDA YASUYUKI , MIURA YUZURU
IPC分类号： B23K31/00

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