TH41416A3 - Short circuit welding machine - Google Patents

Abstract

DC60 (17/11/42) Arc welding equipment and method by short circuit method. The spaced end of both Two of the two pipe cross-sections that are grooved between the pipe cross-sections of the two methods and equipment, there is an integral part of the electrode with the rod and the sliding wire. The sky enters the groove while the electrodes are sliding along the groove and around the periphery surface. Outside of the pipe cross-section During welding operation Electrodes with a core are Melts surrounding electricity Which consists of the relay part and the plasma part The plasma section is controlled to weld the gap between the pipe cross-section. To place the base curl Root along the furrow Coreed electrodes should be self-shielded electrodes with alloyed parts in the core. To create foundation corrugations, which contribute Assembles are truly similar to the components of the two pipe cross-sections. Equipment and methods There is a selection device to control the polarity of each cycle of the All welding procedures Arc welding equipment and methods by means of short circuit The spaced end of both Two of the two pipe cross-sections that are grooved between the pipe cross-sections of the two methods and equipment, there is an integral part of the electrode with the rod and the sliding wire. The sky enters the groove while the electrodes are sliding along the groove and around the periphery surface. Outside of the pipe cross-section During welding operation Electrodes with a core are Melts surrounding electricity Which consists of the relay part and the plasma part The plasma section is controlled to weld the gap between the pipe cross-section. To place the base curl Root along the furrow Coreed electrodes should be self-shielded electrodes with alloyed parts in the core. To create foundation corrugations, which contribute Assembles are truly similar to the components of the two pipe cross-sections. Equipment and methods There is a selection device to control the polarity of each cycle of the All welding procedures

Claims (3)

1.Device for electric arc welding, the two-gap end of the plate. Two metal slats slit between the two plates by annealing the welding wire are introduced. The melted wire is stored in the grooves to connect the spaced ends. The device consists of: an open power source for generating a series of pulses, wide amplitude. Small in welding cycles with short-circuit transfer parts. And the melting part of the arc with a plasma pulse, that current in each cycle has a specified electrode condition of the wire. Imported in connection with the two such sheets. And alternative pathways for selecting conditions The polarity of the pulse during the cycle between the first and positive state of the wire. And the polar state that Two with such negative wire The power supply includes an inductor connected in the middle with the One that creates such a polar state And the second part that creates that second polar state The first switch For the connection of the first part of the inductor between the wire and the plate, a second switch for connecting the second part of the inductor between the said wire and the plate. And the aforementioned option includes a route for the closure of the first or one of the aforementioned second switches during a given welding cycle 2. Equipment as defined in Clause 1. Where such options include scrolling During the first polar state And the aforementioned second polarity at the beginning of the welding cycle 3. Equipment as defined in Clause 2, where such alternative means include decoders. With the first condition to select one of the aforementioned first or second polarity for the first number of the round. In sequential welding And a second condition to select that other polar condition for the second number Sequenced round edges And a way for switching between first states And the second as mentioned between Welding operations 4. Equipment as specified in Clause 2, where the aforementioned number one is different from The second aforementioned number 5. Equipment as defined in Clause 4, where each such cycle contains the required arc current and includes the shant to detect the actual arc current. And the fault amplifiers for comparison The actual arc current with the required arc current in order to control the amplitude of the said current pulse. 6. The device as defined in claim 5 shall include a pulse width modulator. To create Such current pulses at a frequency greater than approx. 10 kHz 7. Equipment as defined in claim 6, where such power supply is inversely connected with the The output transformer that drives the rectifier 8. Equipment as set out in Clause 7 where such closure will take place at the start of Welding cycles 9. Equipment as specified in Clause 8, where such a wire is a metal-core electrode 1 0. Equipment as specified in Clause 2 where such power supply Is an inverse cycle with Output transformer that drives the rectifier 1 1. Equipment as defined in Clause 10 where such closure will take place at the start of Welding cycles 1 2. Equipment as defined in Clause 1 where the power source is inversely connected with the The output transformer that drives the rectifier 1 3. Equipment as defined in Clause 12 where such closure will take place at the start of Welding cycles 1 4. Equipment as defined in Clause 12 includes a pulse width modulator to generate Such current pulses at a frequency greater than approx. 10 kHz 1. 5. Devices as defined in claim 1, where such shutdown takes place at the start of the Welding cycles 1 6. Equipment as defined in Clause 1 where such optional path includes decoders. With the first condition to select one of the aforementioned first or second polarity for the first number of the round. In sequential welding And a second condition to select that other polar condition for the second number Of rounds arranged in order And a way for switching between first states And the second as mentioned between Welding operations 1 7. Equipment as specified in Clause 16, where the aforementioned number one is different from The second aforementioned number 1 8. Equipment as specified in Clause 17, where the wire is a metal core electrode 1. 9. Equipment as specified in Clause 16, where such wire It is an electrode with metal cores 2 0. The equipment as defined in claim 16 shall include a pulse width modulator to generate Such current pulses at a frequency greater than approx. 10 kHz 2. 1. The device as defined in claim 1, where each such cycle contains the required arc current and includes a shunt to detect the arc current. Really And the fault amplifiers for comparison The actual arc current with the required arc current in order to control the pulse width of that current 2 2. The device as defined in claim 21 shall include a pulse width modulator. To create Such current pulses at frequencies greater than approx. 10 kHz 2. 3. Devices as defined in claim 1 include a pulse width modulator to generate Such current pulses at frequencies greater than approx. 10 kHz. 2 4. Method for electro-arc welding of two-cavity-gap ends of the plate. Two metal sheets slit between the two plates by annealing the welding wire that is brought in. The fused wire is stored in the grooves to connect the spaced ends. The method consists of the steps of: (a) providing a power source generating a series of pulses. A small stream that It consists of a welding cycle with a short-circuit transfer part. And the melting part of the arc with a plasma pulse, that current in each cycle has a specified electrode condition of the wire. (B) Selecting the polarity of the said pulse during the cycle between the first polarity and the wire. That is positive And the second polarity with the said wire is negative. Such power sources include The inductance is connected in the middle to the one that creates such a first polar state. And the second part that creates the image The second terminal (c) the first part of the inductor connection strides the wire and the pad by closing the first (d) switch. Straddle the wire and the pad by closing the second switch and (e) closing either the one or any such second switch at the location where 5. The method specified in Clause 24 will include an additional step of (c) the shift between such first-degree conditions. And that second polar condition at the inception of Welding cycles 2 6. Method as defined in Clause 25, where each such cycle contains the required arc current and includes the actual arc current detection procedure. And real arc current comparison 2 7. The methods set out in claim 26 will include the process of generating pulse currents. 2 8. Methods set out in Clause 26, where the wire is a metal-core electrode 2. 9. Methods set out in Clause 24 shall: This includes an additional step of (c) selecting one of the first or inserted conditions for the number one of the round in Sequential welding And a second condition to select that other polar condition for the second number of Sequential cycles and (d) alternation between first states. And the second, during the welding operation 3 0. Method as specified in Clause 29, where the aforementioned number one is different from The second aforementioned number 3 3. 1. Methods as defined in Clause 24 of Clause 24 include the procedure for generating pulse current. 3 2. Methods set out in Clause 31, where the wire is a metal-core electrode 3. 3. Method as specified in Clause 24. Where such power supply is inversely circuit with Output transformer that drives the rectifier 3 4. Method as specified in claim 24, where the aforementioned selected position is at the start. 3 5. Methods as specified in Clause 24, where the wire is a metal core electrode. 3. 6. Methods for arc welding. Two spaced ends of two metal plates. In the grooves between the two plates, gaps are formed by melting the welded wire to be brought in, and the molten wire is retained in the groove to form a welding basin that covers the gaps between the plates. Shining the said sheet The method consists of the steps of: (a) arrangement of the electrode (b) the movement of the electrodes through the grooves in such a way that the electrodes are (C) the melting of the electrodes by electric wave. The electrocardiogram includes a series of Current pulses composed of cycles in the welding Each of these current pulses will have The specified electrode condition in relation to the metal plate (d) the selection of the polarity of the said pulse in a cycle during the first polarity. With such a positive electrode And the second polarity with the said electrode is negative for Control the temperature of the welding basin in the groove and (e) the alternation of the first polarity. And the second as during the welding cycle At least one round Such an alternating polarity is a function of the cumulative amount of energy being supplied to the wire. Such electric welding And basins in such welding in a polar state And the cumulative amount of energy that was To the said electrode 3 7. Methods set out in Clause 36 of Clause 36 shall include the process of selecting the polarity of the electrode. The pulses in the pass in the said welding during one such polarity And the second polar state To control the melting rate of such electrodes. 3 8. Methods set out in Clause 36, where such electrodes are electrodes. The shield itself. 3. 9. Method as specified in Clause 36, where such electrodes are electrodes. The cores include the alloying elements in axis 4. 0. The methods specified in Clause 36 will include the process of arranging for the conductors. 4 1. Method as specified in Clause 40, where the speed of the aforementioned welding conductor is welded, which is applied to the electrode around the perimeter of the sheet. In accordance with the aforementioned conductors, the conductors will move around the section of the pipe. The background current has a high inductance component. And low level, just above that level It is necessary to support the arc throughout each welding cycle. 4 3. Methods as specified in Clause 36, where such two metal plates are part of a pipe, two pipes. Clause 36, where the said electrocardiogram includes the transfer And the controlled forge The smelting element has a pre-selected area I (t) for melting. The relative constant volume of the electrodes during each welding cycle. 4 5. Method as specified in Clause 36, where the process of melting the electrodes Such electricity includes the use of a pre-selected amount of energy with the said electrodes in During at least one welding cycle And reducing the current to the electrodes before the metal 4 6. Method as set out in Clause 36, where such electrodes limit the energy of such welding electrodes to protect the metal from being melted. 4 7. The method set out in Clause 36 will include an additional step of postponement. The first polar condition And the aforementioned second position at the initiation of the round edge in welding. 4. 8. The method as specified in Clause 36 shall include additional steps of selecting one of Such first or second polarity conditions for the first number of the sequential welding passes and the second condition to select such other polar conditions for the second number of the sequential pass 4 9. Follow-up Method Set out in Clause 48, where the number one is different from The second aforementioned number 5 0. Method, as defined in Clause 36, where each such cycle contains the required arc current and includes the actual arc current detection phase. And real arc current comparison With the arc current required to control the pulse width of that current 5. 1. Methods set out in claim 36, where such power supply will generate alternating current 5. 2. Methods set out in Clause 36, where such power supply is the STT 5 power source. 3. Method as specified in Clause 36, where such metal electrodes are not Need protection against gas from outside