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1. 发明专利

JPS57199565A SHORT CIRCUIT TRANSFER ARC WELDING MACHINE 失效
公开(公告)号：JPS57199565A
公开(公告)日：1982-12-07
申请号：JP8464681
申请日：1981-06-02
申请人： TOYOTA MOTOR CO LTD , MITSUBISHI ELECTRIC CORP
发明人： KONDOU MASATSUNE , TABATA YOUICHIROU , MOCHIGURI SHIGEO , MIZUNO KOUJI , SEGAWA HIROHISA , HIRAMOTO MASATAKE
IPC分类号： B23K9/073 , B23K9/06
摘要： PURPOSE:To form weld beads of superior penetration in the stage of welding by a short circuit transfer arc welding machine by forming the current waveform in an arc period to a pulse form thereby increasing the quantity of penetration into base materials. CONSTITUTION:A DC power source 1, a current detector 11, a voltage detector 15 and a electricity conduction controller 30 for welding current consisting of a switching element 2, a switch command circuit 12 and three judgers 16, 17, 20 are provided to a short circuit transfer welding device. Electricity is conducted to the DC power source circuit 1 to short circuit the leading end of a wire electrode 7a to base materials 10, then the electrode 7a is melt cut and an arc is generated. In accordance with the operations of the three judgers by the detected voltage of the detector 15 and the detected current value of the detector 11, the circuit 12 emits a command to the element 2 which in turn controls the current waveform of the arc period to a pulse form, and causes melting of the electrode 7a and the base material 10 by heating, thereby increasing penetration to the base materials and forming superior weld beads.

2. 发明专利

JPS58119468A HOT WIRE TYPE ARC WELDING DEVICE 失效
公开(公告)号：JPS58119468A
公开(公告)日：1983-07-15
申请号：JP158182
申请日：1982-01-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： EGURI SHIGEO , TABATA YOUICHIROU , SHIMIZU TAKAO , MIZUNO KOUJI
IPC分类号： B23K9/12 , B23K9/06 , B23K9/10
摘要： PURPOSE:To preheat the wire smoothly and form the bead stably by detecting voltage between the filler wire and base metal and controlling and adjusting current to make it equal to a set value. CONSTITUTION:Welding current Io is selected and set by a setting device 21. Wire feeding speed Vw corresponding to IO is set by a function generator A22 and its output is inputted to a motor 11 and a function generator B23. The function generatot B23 sets VO according to Vw, and the value is compared by a comparator 24 with potential difference V between a feeding device 10 and base metal 9 detected by a detector B20. A commanding circuit A25 receives output of the comparator A24 and commands off to a switching element 13 if V>VO, commands on if V IO or I IO and to turn on if I

3. 发明专利

JPS57168774A SHORT CIRCUIT TRANSFER ARC WELDING MACHINE 失效
公开(公告)号：JPS57168774A
公开(公告)日：1982-10-18
申请号：JP5393581
申请日：1981-04-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： TABATA YOUICHIROU , MOCHIGURI SHIGEO , MIZUNO KOUJI , SEGAWA HIROHISA , HIRAMOTO MASATAKE
IPC分类号： B23K9/073 , B23K9/06 , B23K9/09
摘要： PURPOSE:To eliminate the unstability of welding work in a short circuit transfer arc welding machine by comparing the detected value of the voltage between a wire and base metals with the prescribed voltage, and controlling the electric charge quantity in the arc discharge period in accordance with the compared value thereby controlling the voltage so as to attain the prescribed value. CONSTITUTION:In a short circuit transfer arc welding mchine which performs welding by repeating short circuit and arc discharge between wire electrode 7 and base metals 10, the electric charge quantity of the current flowing in the arc period is changed over according to the feed rate (v) of the wire 7, and the electric charge quantity of the current is so corrected that an average welding voltage V attains the prset reference average value. In spite of vertical oscillating of a torch 9, the welding is accomplished always in the costant short circuit periods and therefore the influence of hand shaking, etc., is eliminated. In this way, the wire 7 is fed to the torch 9 by a feed motor 8, the leading end of the molten wire electrode 7a is short-circuited to the base metals 10, and the current is supplied until the next regeneration of the arc, whereby the transfer of the molten wire electrode to the base metals 10 is accomplished stably.

4. 发明专利

JPS5756163A Pulse arc welding machine 失效
标题翻译：脉冲电弧焊机
公开(公告)号：JPS5756163A
公开(公告)日：1982-04-03
申请号：JP12998580
申请日：1980-09-18
申请人： Mitsubishi Electric Corp
发明人： MOCHIGURI SHIGEO , TABATA YOUICHIROU
IPC分类号： B23K9/09 , B23K9/06
摘要： PURPOSE: To apply proper quantity of heat input over the entire welding current range by generating the timing pulses synchronized with AC input, dividing down the frequencies thereof to meet the feed speed of a wire, and generating the trigger pulses synchronized with these.
CONSTITUTION: The clock pulses regulating the generation times of trigger pulses (thyristor 71W76) emitted from a trigger circuit 10 are generated by a clock pulse generating circuit 11. Such clock pulses are conducted to a frequency dividing circuit 12, by which the number of pulse is thinned out in such a way that the trigger pulses are generated from the trigger circuit at the frequencies corresponding to the wire feed speed. A switching element is conducted and controlled by such trigger pulses. Thereby, the number of the pulses generated per unit time can be changed and good welded beads are easily obtained.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过产生与AC输入同步的定时脉冲，在整个焊接电流范围内施加适量的热量输入，将其频率除以，以满足导线的进给速度，并产生与这些同步的触发脉冲。构成：通过时钟脉冲发生电路11产生调节从触发电路10发出的触发脉冲（晶闸管71-76）的产生时间的时钟脉冲。这样的时钟脉冲被传送到分频电路12，脉冲以这样的方式被稀疏，使得触发脉冲以对应于送丝速度的频率从触发电路产生。开关元件由这种触发脉冲传导和控制。因此，可以改变每单位时间产生的脉冲数，容易获得良好的焊接珠。

5. 发明专利

JPS5719176A PULSE ARC WELDING MACHINE 失效
公开(公告)号：JPS5719176A
公开(公告)日：1982-02-01
申请号：JP9309080
申请日：1980-07-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： MOCHIGURI SHIGEO , TABATA YOUICHIROU , KOMURA KOUJI , MIZUNO KOUJI , MIZUNO MASANORI
IPC分类号： B23K9/09
摘要： PURPOSE:To provide a pulse arc welding machine which is easy to form pulse waveforms, is small in power source capacity and permits setting of a capacitor at low withstand voltage by connecting a capacitor for forming pulsewaveforms between the output terminals of a DC power source. CONSTITUTION:A wire 10 is fed 11 in the direction of base metals 12; at the same time, switching elements 5, 6 are turned on by control circuits 14, 15, to generate the arc between the wire 10 and the base metals 12, whereby the base metals 12 are welded. Base current is detected 92, and the element 6 is turned on and off by the circuit 15, so that the base current is fixed always at an approximately constant value. Pulselike current is detected 91, and the element 5 is turned on and off by the circuit 14 so that the peak current values attains a prescribed value and so that the correct pulse periods are obtained according to the feed speed of the wire 10. Immediately after the elements 5, 6 are turned on and off, the current is reflowed by way of a flywheel diode 81 or 82, a DC reactor 71 or 72, the wire 10, the welding arc 13 and the base metals 12.

6. 发明专利

JPS5719172A PULSE ARC WELDING DEVICE 失效
公开(公告)号：JPS5719172A
公开(公告)日：1982-02-01
申请号：JP9308380
申请日：1980-07-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： TABATA YOUICHIROU , MIZUNO KOUJI
IPC分类号： B23K9/09
摘要： PURPOSE:To reduce the ripples of pulse current and reduce the arc sound during welding by controlling the 2nd switch group to on in the period when the 1st switch group regulating the electricity conduction period of the pulse current is off. CONSTITUTION:First, the 1st switch group is turned on and when the pulse current detected with a shant 20 attains a prescribed value, the 1st switch group goes off; at the same time, the 2nd switch group goes on. Then, IB rises, and IA attenuates upon releasing of the energy accumulated directly in a reactor 12. When this pulse current attains a prescribed value, the 1st switch group goes on, and the 2nd switch group off. Thereafter, when the on and off of both switch group are repeated in the pulse period, pulse current I is the cmposite of IA and IB, and the repples of the pulse current I are reduced.

7. 发明专利

JPS5719161A PULSE ARC WELDING DEVICE 失效
公开(公告)号：JPS5719161A
公开(公告)日：1982-02-01
申请号：JP9306880
申请日：1980-07-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： KITANI MOTOI , TABATA YOUICHIROU
IPC分类号： B23K9/09
摘要： PURPOSE:To eliminate unstable phenomena owing to fluctuations in arc length and to perform adequate welding by detecting base voltage and determining the differential voltage from a target value thereby changing pulse peak current in a manner as to eliminate the differential voltage and maintaining the base voltage at a prescribed value. CONSTITUTION:When the arc is generated upon starting of welding, the base voltage in the arc is detected by a base voltage detecting circuit 101, and is coneucted to a comparator 103, where it is compared with the target base voltage of a base votage command circuit 105. The differential value thereof is inputted to a pulse width setting circuit 113, by which the pulse width is changed by the circuit 112 in such a manner that the output of the circuit 105 and the base voltage in the arc are made equal, whereby the base voltage is controlled so as to be kept at a prescribed value at all times and the unstable phenomena accompanied with the fluctuation in the arc length occuring in hand shaking are eliminated.

8. 发明专利

JPS56141969A POWER SOURCE FOR PULSE ARC WELDING MACHINE 失效
公开(公告)号：JPS56141969A
公开(公告)日：1981-11-05
申请号：JP4537180
申请日：1980-04-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： TABATA YOUICHIROU , MOCHIGURI SHIGEO , KOMURA KOUJI
IPC分类号： B23K9/09
摘要： PURPOSE:To make base current small, and auxiliary power source compact and inexpensive by making output voltage at the no-load of the auxiliary power source high. CONSTITUTION:The firing time of a thyristor 9 is so adjusted with a dial 11 as to attain more than the critical current value Ic shifting to globule to be determined by the quality of base metals 7 and the diameter of a consumable electrode 4. Thence, the feed speed of the consumable electrode 4 to be determined by the thickness of the base metals 7 and the diameter of the consumable electrode 4 is adjusted with a dial 20. The dial 20 also permits adjustment of the number of pulses per unit time according to the feed speed simultaneously with the feed speed of the consumable electrode 4. The welding method is changed by changing the number of pulses per unit time without changing the firing time of the thyristor 9, according to the thickness of the base metals 7 or the feed speed of the consumable electrode 4. With this method, it does not depend upon the thicknesses of the base metals 7, the globules fixed to relatively small globule diameters drop, arc breakage is difficult to occur, hence, the base current supplied from the auxiliary power source 2 is sufficient with small current.

9. 发明专利

JPS5610649A INSTANTANEOUS WATER BOILER UTILIZING GLOW DISCHARGE 失效
公开(公告)号：JPS5610649A
公开(公告)日：1981-02-03
申请号：JP8567579
申请日：1979-07-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： TABATA YOUICHIROU , MOCHIGURI SHIGEO , KOMURA KOUJI
IPC分类号： F24H1/10 , F24H9/20
摘要： PURPOSE:To always obtain a heated fluid of a predetermined temperature by a method wherein the supply and cut-off of a heated fluid into a heating pipe is effected through a solenoid valve, while the opening of the valve is interlocked with a heated fluid temperature detecting circuit and the closing of the valve is interlocked with a delay circuit for a delay relative to a power source on-off switch. CONSTITUTION:With an on-off switch 37 closed and a heated fluid heated by a glow discharge heating pipe 1, a temperature sensor 12 detects the temperature of the heated fluid with a delay of predetermined length of time. With the detected temperature approaching close to a predetermined temperature, a temperature detecting circuit 33 makes output terminals 34 and 35 conductive, relays 27 and 27a of the first switching means operate to open solenoid valve 32, the heated fluid flows into the discharge heating pipe 1, and a heated fluid of a predetermined temperature is delivered from an outlet pipe 15 from the biginning. Thereafter, opening of the switch 37 stops the main glow discharge, a switch 38 is turned off, the solenoid valve 32 is closed with a predetermined delay, and the heated fluid is kept below a predetermined temperature.

10. 发明专利

JPS54106944A MULTIIPHASE AC GLOW DISCHARGE HEATER 失效
公开(公告)号：JPS54106944A
公开(公告)日：1979-08-22
申请号：JP1394978
申请日：1978-02-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： TABATA YOUICHIROU , MOCHIGURI SHIGEO , KOMURA KOUJI
IPC分类号： H05B7/16 , H05B7/144
摘要： PURPOSE:In an above-titled heater, to enable the circuit operations with only one high-voltage generator circuit by connecting m pieces of thyristors in parallel with the output side of a high-voltage generator circuit and connecting them to corresponding auxiliary electrodes. CONSTITUTION:Slightly before the voltage applied across main elctrodes 1A and 1B reaches the minimum glow discharge sustaining voltage Vo, a gate voltage is applied to a thyristor Sa to turn it on and a high-voltage pulse is fed from a high-voltage generator circuit 14 to an auxiliary electrode 11a. With the thyristor Sa conducting, a pilot glow discharge develops between the main electrode 1A and the auxiliary electrode 11a. With the voltage across the main electrodes 1A and 1B reaching Vo, a glow discharge develops between the main electrodes 1A and 1B. With the voltage across the main electrodes 1A and 1B growing above Vo, the glow discharge serves as a pilot golw discharge to develop a glow discharge between the main electrodes 1A and 1C, with the former electrode 1A working as the cathode.

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