EP0356516A1 - Dispositif d'application de revetements galvaniques - Google Patents

Dispositif d'application de revetements galvaniques Download PDF

Info

Publication number
EP0356516A1
EP0356516A1 EP88904291A EP88904291A EP0356516A1 EP 0356516 A1 EP0356516 A1 EP 0356516A1 EP 88904291 A EP88904291 A EP 88904291A EP 88904291 A EP88904291 A EP 88904291A EP 0356516 A1 EP0356516 A1 EP 0356516A1
Authority
EP
European Patent Office
Prior art keywords
input
output
inputs
voltage
gate
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.)
Withdrawn
Application number
EP88904291A
Other languages
German (de)
English (en)
Other versions
EP0356516A4 (en
Inventor
Vladimir Mikhailovich Kutsenko
Anatoly Pavlovich Dostanko
Alexandr Alexandrovich Khmyl
Viktor Dmitrievich Kolesnik
Viktor Ivanovich Khomich
Leonid Petrovich Anufriev
Leonid Savvich Bertosh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MINSKY RADIOTEKHNICHESKY INSTITUT
Original Assignee
MINSKY RADIOTEKHNICHESKY INSTITUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MINSKY RADIOTEKHNICHESKY INSTITUT filed Critical MINSKY RADIOTEKHNICHESKY INSTITUT
Publication of EP0356516A1 publication Critical patent/EP0356516A1/fr
Publication of EP0356516A4 publication Critical patent/EP0356516A4/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/12—Process control or regulation

Definitions

  • the present invention relates to galvanic technology and relates in particular to devices for applying galvanic coatings.
  • the invention can be successfully used to produce single and multi-layer electroplated coatings.
  • the present invention can be used for electrochemical degreasing and etching.
  • a device for applying galvanic coatings (SU, A, 831883) which has a power transformer, the secondary winding of which has n taps, two changeover switches, in which each input of one of them is connected to the corresponding input of the other changeover switch, and connected to one of the taps of the secondary winding of the power transformer, two logic AND gates, each of which is electrically connected to the associated changeover switch, two pulse generators, each of which is connected on the output side to one of the inputs of the associated logic AND gate, a period setpoint adjuster for pulses of positive and negative polarity, one input of which is combined with the input of each pulse generator and the other input of which is in electrical connection with the additional winding of the power transformer and each of which has two outputs at the other input of the associated logical AND-Eq iedes, two delay lines, each of which has an input to the output of the associated logical AND gate is closed and the other input is electrically connected to the additional winding of the power transformer, two switch-off blocks, each of which
  • the device described does not guarantee the desired uniformity of the coatings to be applied, which also worsens the physical-mechanical properties of the galvanic coatings.
  • this device does not allow galvanic coatings to be produced with a predetermined thickness.
  • the invention has for its object to provide a device for applying galvanic coatings, which has such additional units - and electrical connections that automatically change the amplitude, shape and frequency of pulses of polarizing currents flowing through the galvanic bath positive and negative polarity according to a program entered in advance, enable measurement and stabilization of the current of the galvanic bath.
  • the device for applying galvanic coatings which has a power transformer, the secondary winding of which has n taps, two changeover switches, each input of which is connected to the corresponding input of the other changeover switch and is connected to one of the taps of the secondary winding of the power transformer, two logic AND gates, each with the corresponding one Switch is electrically connected, two pulse generators, each of which has the output connected to one of the inputs of the associated logic AND gate, a period setpoint generator for pulses of positive and negative polarity, one input of which is combined with the input of each pulse generator and the other another input is electrically connected to an additional winding of the power transformer and each of two outputs of the period setpoint adjuster is connected to the other input of the associated logic AND gate, two delay lines, in which one input each of them a n the output of the associated logic AND gate is connected and the other input of each delay line is electrically connected to the additional winding of the power transformer, two switch-off blocks, each of which has the input connected to the output of
  • the device for applying galvanic coatings also has a voltage contains amplitude setpoint generator, the inputs and one output of which are in electrical connection with the additional winding of the power transformer and each of two other outputs is electrically connected to a further input of the corresponding voltage level shaper.
  • the device for applying galvanic coatings additionally contains a voltage shape adjuster, the input and one of the outputs of which are connected to the output or to the input of the voltage amplitude setpoint generator, two other inputs of this adjuster being connected to the additional winding of the power transformer are electrically connected and the other outputs of the adjuster are each connected to a further input of each generator, to a further input of the period setpoint for pulses of positive and negative polarity and to a further input of each delay line.
  • a voltage shape adjuster the input and one of the outputs of which are connected to the output or to the input of the voltage amplitude setpoint generator, two other inputs of this adjuster being connected to the additional winding of the power transformer are electrically connected and the other outputs of the adjuster are each connected to a further input of each generator, to a further input of the period setpoint for pulses of positive and negative polarity and to a further input of each delay line.
  • the device for applying galvanic coatings also has a synchronization part, one input of which is connected to the additional winding of the power transformer and the output of which is connected to the interconnected inputs of the pulse generators, the input of the period setpoint for pulses of positive and negative polarity and is connected to a further input of the voltage amplitude setpoint generator and contains a control panel in which each of two outputs are connected to the respective information input, and each of two other outputs are connected to the respective control input of the voltage amplitude setpoint generator or the voltage form adjuster and the last output of the control panel is connected to another input of the synchronization part.
  • the device for applying galvanic coatings also contains a program cycle setpoint adjuster, one input of which is connected to a Another output of the control panel, the other input of which is connected to the output of the voltage amplitude setpoint generator and the output of which is in electrical connection with another input of the synchronization part.
  • the device for applying galvanic coatings contains an ammeter, the input of which is connected to the outputs of the changeover switch, the one output of which is connected to the input of the control panel and the other of which is connected to the galvanic bath.
  • the device for applying galvanic coatings additionally contains two voltage level correction units, each of which has one input to the corresponding output of the voltage amplitude setpoint generator, the other input to the corresponding output of the period setpoint generator for pulses positive and negative Polarity and a further input of each voltage level correction unit are connected to the output of the ammeter, while the output of each of these voltage level correction units is connected to the input of the associated voltage level shaper.
  • the device for applying galvanic coatings additionally contains a unit for measuring the amount of electricity, the two inputs of which are more positive at the outputs of the synchronization part or the ammeter, the other two inputs at the corresponding outputs of the period setpoint adjuster for pulses and negative polarity are connected and their output is connected to the other input of the control panel.
  • the device for the application of galvanic coatings additionally contains a program actuator, the two inputs of which are connected to the outputs of the unit for measuring the quantity of electricity or the control panel, and a logic OR element, the two inputs of which are each connected to the Outputs of the The program end actuator and the program cycle setpoint adjuster and its output are connected to the input of the synchronizing part.
  • each of the voltage level shapers of the device according to the invention contains logic AND gates, the number of which is equal to that of the control inputs of the corresponding changeover switch, and a decoder, which is connected to one of the inputs of the associated logic AND gate, the others Inputs of the AND gates are combined and serve as the input of the voltage level shaper.
  • the voltage amplitude setpoint generator of the device according to the invention is also expedient for the voltage amplitude setpoint generator of the device according to the invention to be connected in series - a logic OR gate, a main counter, a memory whose other input is combined with the input of the logic OR gate, an additional counter whose output is at the other Input of the logical OR gate is, and contains an auxiliary counter, the input of which is connected to the output of the additional counter.
  • the voltage 'shape adjuster of the device according to the invention - connected in series - to contain a logic OR gate, a counter and a memory, the other input of which is combined with the input of the logic OR gate.
  • the synchronization part of the device according to the invention contains a logic AND gate, to one input of which a flip-flop and to the other input of which a threshold device is connected.
  • a series circuit comprising a resistor, a voltage amplifier, the other input of which is combined with the other terminal of the resistor, and a high-voltage meter and an analog-to-digital main converter.
  • the ammeter can additionally contain a circuit for averaging the maximum voltage, which is connected to the outputs of the analog-digital main converter.
  • the current meter of the device according to the invention additionally contains a voltage mean value meter, the input of which lies at the output of the voltage amplifier.
  • ammeter of the device according to the invention contains an additional analog-to-digital converter, the input of which is connected to the mean voltage meter.
  • each of the voltage level correction units of the device according to the invention has two logic AND gates, one of whose inputs are combined with one another, a code comparison circuit, which is connected to the other input of the associated logic AND gate, two univibrators, in each of which the Input is connected to the associated AND gate, and contains a reversing counter, one input of which is combined with one of the inputs of the code comparison circuit and each of which is connected to the associated univibrator by two other inputs.
  • the unit for measuring the quantity of electricity preferably contains a memory and a comparison circuit connected to it, at the other input of which a comparison signal shaper is connected, two logic AND gates, one input of which is combined with one another and connected to the comparison circuit, a flip-flop which is connected to one of the inputs of the associated logical AND gate is connected, a pulse generator, the input of which is connected to the inputs of the comparison signal former or of the memory and the output of which is connected to further interconnected inputs of the logical AND gate, a reversing counter, in which each of contains two inputs with the associated logical AND gate.
  • the program end controller of the device according to the invention can contain a memory and a comparison circuit connected to it.
  • the voltage amplifier of the ammeter of the device according to the invention may contain a summator, to whose one input a negator is connected and to the other input of which an amplifier of positive signals is connected, and an amplifier of negative signals, which is connected to the input of the negator is switched.
  • the extra-high voltage meter of the ammeter of the device according to the invention is connected to a diode, to the anode of which the output of a differential voltage amplifier and to the cathode of which the input of a switch, a capacitor and one of the inputs of the differential voltage amplifier are connected.
  • the circuit for averaging the maximum voltage of the ammeter has a series circuit comprising a summator, at one of whose inputs a logic AND main element is connected, a main register and an additional register, and a series circuit comprising a flip-flop, an additional logic AND Member, the other input of which is combined with the other inputs of the main register or of the flip-flop, and of a univibrator which is connected to the other input of the additional register, the one input of the logical AND main element to the output of the Main register is set and the other input is combined with the other input of the additional logic AND gate.
  • the voltage average meter contains a two-way rectifier and a low-pass filter connected in series therewith.
  • the present invention offers the possibility of automatically changing the amplitude, shape and frequency of the pulses of a polarizing current of the galvanic bath, which improves the physical-mechanical properties of the galvanic coatings to be applied.
  • the present invention enables measurement and stabilization of the current of the galvanic bath during the application of galvanic coatings, which likewise improves the physical-mechanical properties of the galvanic coatings.
  • the present invention enables the measurement of an amount of electricity that has passed the galvanic bath, which ensures uninterrupted monitoring of the thickness of the galvanic coatings to be applied.
  • the process of applying galvanic coatings can be stopped as soon as the desired amount of electricity that has passed through the galvanic bath has been reached, so that the galvanic coatings are produced with a predetermined thickness.
  • the device according to the invention for applying galvanic coatings contains a control panel 1 (FIG. 1), at whose outputs 2, 3 there are inputs 4 and 5 of a voltage form adjuster 6, at its outputs 7, 8, inputs 9 and 10 of a voltage amplitude -Set value generator 11 and at the output 12 an input 13 of a synchronization part 14 are connected.
  • Output 17 of a program cycle setpoint adjuster 18, the other input 19 of which is combined with input 3 of adjuster 6, and an additional winding of a power transformer 20 are connected to the other inputs 15 and 16 of synchronization part 14.
  • the other inputs 21 and 22 of the adjuster 6 and the program cycle setpoint adjuster 18 are combined with one another and at the off gear 23 of the voltage amplitude setpoint generator 11 is switched, the input 24 of which is located at the output 25 of the voltage shape adjuster 6.
  • the other outputs 26, 27 are connected to the inputs 28 and 29 of the pulse generators 30 and 31, respectively.
  • the outputs 32, 33 of the adjuster 6 are at the inputs 34 and 35 of the delay lines 36 and 37, respectively, and its output 38 is connected to the input 39 of a period setpoint adjuster 40 for pulses of positive and negative polarity.
  • the inputs 41, 42, 43, 44 of the generators 30, 31, of the voltage amplitude setpoint generator 11 and of the setpoint generator 40 are combined with one another and connected to the output 45 of the synchronization part 14.
  • the inputs 48, 49 of a logic AND gate 50 are connected to the output 46 of the generator 30 and to the output 47 of the setpoint adjuster 40.
  • the outputs 56, 57 of the voltage amplitude set point generator 11 are each connected to the inputs 58, 59 of the voltage level shaper 60 or 61 connected.
  • the inputs 62 and 63 of the former 60 and the delay line 37 are combined with one another and connected to the output 64 of the AND gate 50, while the inputs 65 and 66 of the former 61 and the delay line 36 are combined with one another and to the output 67 of the AND gate 55 are connected.
  • the outputs 68.69.70 of the shaper 60 are connected to the control input 71.72 or 73 of a changeover switch 74, while the outputs 75.76.77 of the shaper 61 are connected to the control input 78.79 or 80 of a changeover switch 81.
  • the inputs 82, 83, 84 of the changeover switch 74 are combined with the inputs 85, 86 and 87 of the changeover switch 81, these inputs of the said changeover switches being connected to the associated taps 88, 89 and 90 of the secondary winding of the transformer 20.
  • the outputs 91 and 92 of the changeover switches 74 and 81 are combined with one another and connected to the input 93 of the galvanic bath 94.
  • the input 95 of the switch 74 and the input 96 of the switch 81 are connected to the output 97 or 98 of a switch-off block 99 or 100.
  • Input 101 of switch-off block 99 and input 102 of switch-off block 100 are connected to outputs 103 and 104 of delay line 37 and 36, respectively.
  • the device for applying galvanic coatings contains two voltage level correction units 105, 106 (FIG. 2), the inputs 107, 108 of which are connected to the outputs 56 and 57 of the voltage amplitude setpoint generator 11, and is provided with a current meter 109, the latter Output 110 is connected to the combined inputs 111, 112 and 113 of the units 105, 106 and of the control panel 1.
  • the input 114 of the unit 105 is combined with the input 49 of the AND gate 50 and the input 115 of the unit 106 with the input 54 of the AND gate 55.
  • the output 116 of the unit 105 is connected to the input of the former 60 and the output 117 of the unit 106 is connected to the input 59 of the former 61.
  • the input 118 of the ammeter 109 is connected to the outputs 91, 92 of the changeover switches 74 and 81, while the output 119 is at the input 93 of the galvanic bath 94.
  • the device for applying galvanic coatings contains a unit 120 (FIG. 3) for measuring the amount of electricity, the input 121 of which is located at the output 45 of the synchronization part 14 and the inputs 122, 123 of which are connected to the output 47 or, 52 of the period Setpoint adjuster 40 for pulses of positive and negative polarity are connected.
  • the input 124 of the unit 120 is connected to a further output 125 of the ammeter 109, while the output 126 of this unit 120 is connected to a further input 127 of the control panel 1.
  • the device contains a program end actuator 128 (FIG. 4), the input 129 of which is connected to the output of the unit 120 for measuring the quantity of electricity, and a logic OR gate 130, whose input 131 is connected to the output 132 of the End of program 128 attached is closed.
  • the input 133 of the program end actuator 128 is connected to a further output 134 of the control panel 1.
  • the input 135 and the output 136 of the OR gate 130 are connected to the output 17 of the program cycle setpoint adjuster 18 or to the input 15 of the synchronization part 14.
  • Each of the voltage level formers 60, 61 contains a decoder 137 (FIG. 5) with which the inputs 138, 139, 140 of logic AND elements 141, 142 and 143 are connected. The other inputs 144, 145, 146 of the AND gates 141, 142 and 143 are combined with one another.
  • the voltage amplitude setpoint generator 11 (FIGS. 1, 2, 3, 4) contains a memory 147 (FIG. 6), to the input 148 and output 149 of which a main counter 150 and an additional counter 151 are connected.
  • a logic OR gate 153 is connected to the input 152 of the counter 150.
  • An input 155 of an auxiliary counter 155 is connected to the output 154 of the counter 151, which is combined with the input 157 of the OR gate 153.
  • the other inputs 158 and 159 of the OR gate 153 and the memory 147 are combined with one another.
  • the voltage form adjuster 6 (FIGS. 1, 2, 3, 4) contains a counter 160 (FIG. 7), to the input 161 of which a logic OR gate 162 and to the output of which a memory 163 is connected with its input 164.
  • the other inputs 165 and 166 of the OR gate 162 and the memory 163 are combined with one another.
  • the synchronization part 14 (FIGS. 1, 2, 3, 4) contains an AND gate 167 (FIG. 8), to the inputs 168, 169 of which a flip-flop 170 or a threshold device 171 are connected.
  • the ammeter 109 (FIG. 2) contains a voltage amplifier 172, at whose inputs 173, 174 the connections of a resistor 175 and at whose output 176 the input 178 of the extra-high voltage mass 177 are connected.
  • An analog-digital main converter 179 is connected to the knife 177 with its input 180, the output 181 of which serves as the output 110 of the ammeter 109 (FIG. 2).
  • the ammeter 109 (FIG. 2) contains a circuit 182 (FIG. 10) for averaging the maximum voltage, which is connected to the output 181 and a further output 183 of the analog-digital main converter 179.
  • the ammeter (FIG. 3, 4) contains a voltage average meter 184 (FIG. 11), the input 185 of which is at the output 176 of the voltage amplifier.
  • the current meter 109 can contain an additional analog-to-digital converter 186 (FIG. 12), the input of which is connected to the mean voltage meter 184.
  • Each of the voltage level correction units 105, 106 contains a reversing counter (bidirectional counter) 188 (FIG. 13), to the inputs 189, 190 of which univibrators 191, 192 are connected.
  • Logical AND gates 195 and 196 are connected to the inputs 193, 194 of the univibrators 191 and 192, respectively.
  • the inputs 197, 198 of the AND gates 195 and 196 are connected to a comparison circuit 199, while the outputs 200, 201 of these AND gates 195 and 196 are combined with one another.
  • the input 202 of the comparison circuit 199 is combined with the input 203 of the counter 188.
  • the unit 120 (FIG. 3, 4) for measuring the quantity of electricity contains logic AND gates 204, 205, the inputs 206 and 207 of which are combined with one another and connected to the comparison circuit 208.
  • the inputs 209 and 210 of the logic elements 204 and 205 are combined with one another and connected to the output 211 of a pulse generator 212, and the inputs 213 and 214 are connected to a flip-flop 215.
  • a memory 218 and a comparison signal shaper 219 are connected to the inputs 216 and 217 of the comparison circuit 208.
  • the inputs 220, 221, 222 of the memory 218, the former 219 and the generator 212 are combined with one another.
  • the inputs 224 and 225 of a reversing counter 223 are connected to the AND gates 204, 205.
  • the program end controller 128 (FIG. 4) contains a memory 226 (FIG. 15), to which the input 228 of a comparison circuit 227 is connected.
  • the voltage amplifier 172 (FIG. 9) of the ammeter 109 (FIGS. 2, 3, 4) contains an amplifier 229 (FIG. 16) of positive signals and an amplifier 230 of negative signals, to each of which the inputs 231, 232 of a summator 233 and one, respectively Negators 234 are connected.
  • the other input 235 of the summator 233 is connected to the negator 234.
  • the inputs 236 and 237 of the amplifier 229 are combined with the inputs 238 and 239 of the amplifier 230, respectively.
  • the extra-high voltage meter 177 contains a diode 240 (FIG. 17), to the anode of which the output 241 of a differential voltage amplifier 242 is connected.
  • the cathode of the diode 240, the input 243 of the voltage amplifier 242, the input 244 of a switch 245 and a connection of a capacitor 246 are combined in a connection point 247.
  • the output 248 of switch 245 and the other terminal of capacitor 246 are grounded.
  • the circuit 182 for averaging the maximum voltage of the ammeter 109 (FIG. 3.4) contains a main register 249 (FIG. 18), to the input 250 of which a summer 251 is connected and to the output 252 of which the connected inputs 253 are connected , 254 of the additional register 255 or of the logical AND main element 256 are connected.
  • a univibrator 258 is connected to the other input 257 of register 255, to whose input 259 an additional AND gate 260 is connected.
  • the inputs 261 and 262 of the AND gates 256 and 260 are combined with one another and connected to a flip-flop 263.
  • the input 264 of the summator 251. is with the AND gate. 256 connected.
  • the inputs 265, 266, 267 of the register 249, the AND gate 260 and the flip-flop 263 are combined with one another.
  • the voltage average meter 184 (FIG. 11) of the ammeter 109 (FIG. 3.4) contains a two-way rectifier 268 (FIG. 19), to which a low-pass filter is connected with its input 270.
  • the device for applying galvanic coatings according to FIG. 1 functions as follows.
  • a code corresponding to the amplitude and a code corresponding to the duration of this amplitude are selected on the control panel 1, which arrive from its output 7 at the information input 9 of the voltage amplitude setpoint generator 11, from the output 8 to the control input 10 of the setpoint generator 11 "Write" signal reached.
  • the codes corresponding to the amplitude values and the codes corresponding to the durations of the amplitude values are written for the entire first cycle.
  • a code assigned to the current pulse shape is fed to the information input 4 of the voltage shape adjuster 6 in the first cycle, and a "write" signal is sent from the output 3 of the control panel 1 to the control input 5 of the adjuster 6.
  • the codes 56 and 57 of the voltage amplitude setpoint generator 11 arrive at the inputs 58 and 59 of the voltage level shaper 60 and 61, respectively, corresponding to the amplitudes of positive and negative current pulses.
  • the code corresponding to a voltage form is transmitted by the adjuster 6 as follows: from the outputs 26, 27 the codes corresponding to the so-called gate angles, the line voltage, reach the inputs 28 and 29 of the pulse generator 30 and 31, from the output 38 the code corresponding to the period durations of positive and negative pulses to the input 39 of the period setpoint adjuster 40 for pulses of positive and negative polarity, from the outputs 32,33 the codes corresponding to the "cut" of the trailing edge of the output pulses to the input 34 and 35 respectively the delay line 36 or 37 and from the output 25 the code corresponding to a number of amplitude levels of the output voltage in the first cycle to the input 24 of the setpoint generator 11.
  • the synchronization part 14 When the "START" signals arrive from the output 12 of the control panel 1 in the working regime, the synchronization part 14 is switched on via the input 13. An AC voltage from the additional winding of the power transformer 20 is supplied to the input 16 of the synchronization part 14.
  • the synchronization part 14 forms 45 pulses at the output at which the sine curve of the mains voltage passes through zero. These pulses reach the inputs 41 and 42 of the generators 30 and 31, respectively.
  • the generators 30 and 31 deliver pulses at the outputs 46 and 51, respectively, which are shifted by an amount relative to the pulses at their inputs 41 and 42 the respective codes are determined, which are given to the input 28 or 29. These pulses arrive at the input 48 or 53 of the logic AND gate 50 or 55.
  • the pulses arrive at the input 44 of the period setpoint adjuster 40, through which, depending on the code given at its input 39, high levels are alternately formed at its outputs 47, 52, which determines the duration of the positive and negative current pulses . If the high level is present at the output 47, the logic AND gate 50 is unlocked via the input 49, and a pulse arrives at its input 48 from the output 46 of the generator 30, which pulse from the output 64 of the AND gate 50 to the input 62 of the former 60 is given. According to the code at the input 58 of the former 60, it transmits a pulse from the input 62 to one of the outputs 68, 69 or 70.
  • the pulse reaches a respective control input 71, 72 or 73 of the Switch 74.
  • the switch 74 responds and switches at its output 91 one of the inputs 82, 83 and 84, to which the voltage from the taps 88, 89, 90 of the secondary winding of the transformer 20 is given. This fixes the voltage value at the input 93 of the galvanic bath 94 and, depending on its resistance, the current flowing through the bath.
  • the AND gate 55 is unlocked when the high level is present at its input 54.
  • the pulse passes from its output 67 to the input 65 of the former 61 which, depending on the code at its input 59, passes the pulse to one of the outputs 75, 76 or 77. From there, the pulse arrives at the respective control input 78, 79 or 80 of the changeover switch 81.
  • the changeover switch 81 When the changeover switch 81 responds, the predetermined voltage level appears at its output 92, which is also given to the input 93 of the bath 94.
  • each delay line 36 or 37 ensures delay of the pulse by an amount determined by a code given to input 34 or 35, respectively.
  • the pulse delayed in this way, after it has occurred at output 103 or 104 of delay line 37 or 36, is applied to input 101 or 102 of the associated switch-off block 99 or 100.
  • Each switch-off block 99 or 100 generates a signal that arrives at the input 95 of the switch 74 or at the input 96 of the switch 81.
  • the respective changeover switch 74 or 81 is switched off, as a result of which the trailing edge of the output voltage pulse is generated.
  • the pulses from the output 45 of the synchronization part 14 are simultaneously applied to the input 43 of the setpoint generator 11, which ensures that the duration of the first voltage amplitude is counted (measured). After this counting has ended, the voltage amplitude setpoint generator (11) is switched over, and the outputs of the second Am appear at its outputs 56 and 57 plitude corresponding codes.
  • the device works as described above.
  • the code in the program cycle setpoint adjuster 18 is reduced again by 1. This process continues until the zero code is formed in the program cycle setpoint adjuster 18. At this time, a signal appears at the output 17 of the setpoint adjuster 18, which is given to the input 15 of the synchronization part 14 and switches it off.
  • the device for applying galvanic coatings according to FIG. 2 works analogously to the device described above in FIG. 1 with the difference that the signals from the outputs 56 and 57 of the voltage amplitude setpoint generator 11 to the input 107 and 108 of the voltage level correction unit 105 and 106 arrive. From the output 91, 92 of the associated switch 74 or 81, the voltage pulses are fed to the input 118 of the ammeter 109 and from its output 119 to the input 93 of the bath 94.
  • the code corresponding to a current value hits the interconnected one Inputs 111, 112 of the units 105 and 106, respectively.
  • the associated unit 105 or 106 is switched on by an enable signal supplied at output 47 or 52 of setpoint adjuster 40.
  • the codes arriving at the inputs 107 and 111 are compared therein. If they differ from each other, i.e. the current of bath 94 does not correspond to the specified one, then the code at output 116 of unit 105 is changed. This code goes to the input 58 of the shaper 60, which switches the changeover switch 74 in such a way that the output voltage pulse from the output 91 of the changeover switch 74 changes its size and the current of the bath is brought back to the predetermined value.
  • the other voltage level correction unit 106 functions analogously when the high voltage level is applied to its input 115.
  • the device for applying galvanic coatings according to FIG. 3 acts analogously to the device according to FIG. 2 described above, with the difference that a mean value of the voltage is supplied from the output 125 of the ammeter 109 to the input 124 of the unit 120 for measuring the amount of electricity whose input 122 or 123 receives a release signal from the output 47 or 52 of the set point adjuster 40.
  • the input 121 of the unit 120 is supplied with 14 pulses from the output 45 of the synchronization part.
  • Unit 120 stores the data on every pulse arriving at input 121, i.e. the addition of a current quantity, which is fed to the input 124, with the quantity previously stored, if the current quantity flowing through the bath 94 is positive. However, if this current variable is negative, the code in unit 120 is reduced by a current variable corresponding to each pulse arriving at input 121. Thus, the amount of electricity flowing through the bath 94 is determined. This variable is passed from the output 126 of the unit 120 to the input 127 of the control panel 1 for its display.
  • the device for applying galvanic Uber 4 operates analogously to the above-described device according to FIG. 3, with the difference that before the start of work in the program finisher 128 from the output 134 of the control panel 1 a desired quantity of electricity is written for the relevant process of applying a galvanic coating .
  • a current quantity of electricity is fed to the input 129 of the program actuator 128, where it is compared with the target quantity of electricity. If they agree with one another, a signal appears at the output 132 of the program output device 128, which signal is fed to the input 131 of the logic AND gate 130. From the output of the AND gate 130, the signal arrives at the input 15 of the synchronization part 14 and switches it off.
  • a code assigned to the voltage amplitude reaches the input of the former 60, by means of which the decoder 137 is brought into operation.
  • an enable signal appears at one of the outputs of decoder 137.
  • the input 144, 145, 146 of the logic AND gate 141, 142 or 143 (input 62 of the shaper 60) is given pulses which pass through that of the AND gate 141, 142, 143, at whose other respective input 138 or 139 or 140 an enable signal from the decoder 137 arrives . After passing this AND gate 141 or 142 or 143, this pulse appears at its output and thus reaches one of the outputs 68, 69 or 70 of the former 60.
  • the voltage level shaper 61 also functions analogously to that described above.
  • the voltage amplitude setpoint generator 11 operates as follows.
  • a code is given to the input 9 of the voltage amplitude setpoint generator 11, which code determines the amplitude of the output voltage and the duration of this amplitude and which is recorded in the memory 147.
  • a "write" signal sent to input 10 of the Setpoint generator 11 arrives, is fed to the input 159 of the memory 147 and causes the information to be written into the first address therein.
  • the "write” signal reaches the input 152 of the main counter 150 via the logic OR gate 153.
  • the counter is switched over so that the address code is changed at the input 148 of the memory 147.
  • the subsequent information is written into the second address, whereupon the address of the memory 147 is changed again, etc. until all information has been written.
  • the counter 150 In the working regime, the counter 150 is brought into the initial state, and the first address appears at the input 148 of the memory 147.
  • the codes written to this address and corresponding to the amplitude are transmitted in memory 147 to outputs 56 and 57 of voltage amplitude setpoint generator 11 and the code corresponding to a duration of the amplitude is transmitted from output 149 to additional counter 151.
  • the counter 151 counts down the duration of the predetermined amplitude of the output voltage by changing its state with each pulse that arrives at the input 43 of the setpoint generator 11. At the end of the count, a signal appears at the output 154 of the counter 151, which reaches the input 152 of the counter 150 via the OR gate 153 and switches it over. This changes the address of the memory 147 and the codes of the next amplitude and duration thereof are processed.
  • the output signal of the counter 154 is given to the input 155 of the auxiliary counter 156.
  • a code is written into the counter 156 from the input 24 of the voltage amplitude setpoint generator 11, which code determines a number of amplitude levels of the output voltage in the given cycle.
  • the output of counter 154 changes the code of counter 156 and indicates that the relevant amplitude of the output voltage has ended. After the last amplitude of the output voltage has ended in the given cycle, a cycle: end signal arrives at the output 23 from the counter 156.
  • a code is entered from the input 4 of the voltage form adjuster 6 into the memory 163, which code determines a form of the output voltage in the first cycle.
  • the "write” signal arrives from input 5 of adjuster 6 at input 166 of memory 163 and causes the information in memory 163 to be written into the first address.
  • the "write” signal passes via the logic OR gate 162 to the input 161 of the counter 160, so that the state of the latter is changed.
  • the address code arriving from the counter 160 at the input 164 of the memory 163 undergoes a change, as a result of which the address of the memory 163 changes.
  • the following information is written into the memory 163 at the second address and so on until the end of the program.
  • the counter 160 In the working regime, the counter 160 is brought into the initial state. The information written at the first address in the memory 163 appears at the outputs 25, 26, 27, 32, 33, 38 of the adjuster 6. In the course of the working regime, when a signal appears at the input 21 of the adjuster 6, the counter 160 is switched by this signal via the OR gate 162, so that the address of the memory 163 changes, and at the outputs 25, 26, 27, 32 , 33, 38 of the adjuster 6, codes appear which specify the shape of the output voltage in the following cycle.
  • the device 171 forms pulses when the AC voltage passes the zero value.
  • the flip-flop 170 is initially set to the switched-off state, the signal from the flip-flop 170 being passed to the input 168 of the logic AND gate 167 and blocking it.
  • the flip-flop 170 is reversed, and the enable signal coming from it unlocks the AND gate 167, so that pulses 45 to the output 45 from the AND gate begin to arrive.
  • the flip-flop 170 is switched to the switched-off state and the AND gate 45 is blocked, which is why no more pulses arrive at the input 45.
  • the operation of the ammeter 109 of FIG. 9 is as follows.
  • the current flowing from the input 118 to the output 119 of the ammeter 109 forms a voltage drop across the resistor 175 which is proportional to the current.
  • This voltage is amplified by the voltage amplifier 172 and fed to the input 178 of the extra-high voltage meter 177.
  • the high-voltage meter 177 determines the maximum value of the voltage and transmits it to the input 180 of the analog-digital converter 179.
  • the latter forms a digital code which is proportional to the maximum value of the current flowing through the ammeter 109 and transmits this to the output 110 of the meter 109.
  • the current meter 109 according to FIG. 10 works like the current meter according to FIG. 9, except that the output code of the converter 179 is given to the input 181 of the circuit 182 for averaging the maximum voltage.
  • the measured values of the maximum current are averaged on the signal “end of conversion”, which arrives at converter 189 at input 189 of circuit 182, whereupon the code thus obtained is transmitted to output 110 of knife 109.
  • the current meter 109 shown in FIG. 11 acts analogously to the above-described current meter according to FIG. 9, with the difference that the voltage amplified by the amplifier 176 is also fed to the input 185 of the voltage mean value meter 184 behind the amplifier 176.
  • the meter 184 determines an average voltage value that is proportional to the current and transmits it to the output 125 of the ammeter 109.
  • the ammeter 109 of FIG. 12 functions similarly to the ammeter 109 of FIG. 11 described above, except that the mean voltage value from the meter 184 to Input 187 of the additional analog-digital converter 186 arrives.
  • the digital code passes from the converter 186 to the output 125 of the ammeter.
  • the voltage level correction unit 105 (106) of Fig. 13 operates as follows.
  • the information code is fed via the input 107 of the unit 105 to the input 203 of the reversing counter 188, into which it is entered, and to the coae comparison circuit 199.
  • the code is compared in circuit 199 with the code arriving from input 111.
  • a signal passes from circuit 199 to input 197 or 198 of logic AND gate 195 or 196.
  • an enable signal is present at the input 114 of the unit 105 and is applied to the inputs 200, 201 of the AND gates 195 and 196, then that AND gate 195 or 196 is unlocked at whose input the signal from the circuit 199 is present.
  • a signal arrives from the AND gate 195 or 196 at the input 193, 194 of the associated univibrator 191 or 192, to which it responds and delivers a single pulse at the input 189 or 190 of the reversing counter 188. With this pulse, the code in counter 188 changes by incrementing 1 (one) when the pulse arrives at the up count input, or decreased by one when the pulse arrives at the down count input.
  • the output code of counter 188 is forwarded via output 116 of unit 105.
  • the unit 120 for measuring the amount of electricity in FIG. 14 operates as follows.
  • An average current value is applied to the input 124 of the unit 120 and is written into the memory 218.
  • the input 121 of the unit 120 is supplied with pulses which periodically erase the memory, trigger the comparison signal former 219 and the pulse generator 212.
  • a linearly variable signal appears, which is applied to the input 217 of the comparison circuit 208, to the input 216 thereof the signal arrives from memory 218.
  • an enable signal is present at the output of the comparison circuit 208, which arrives at the inputs 206, 207 of the associated logic AND gates 204 and 205, respectively.
  • a signal reaches the input 122 or 123 of the unit 120, by means of which the flip-flop 215 is switched into one or the other state.
  • an enable signal arrives at the input 219 or 214 of the AND gate 204 or 205 from the flip-flop 215, which unlocks the AND gate 204 or 205.
  • the pulses from the generator 212 are fed to the inputs 209, 210 of the AND gates 204 and 205, respectively, and transmitted to the input 224 or 225 of the reversing counter 223 via the unlocked AND gate.
  • the code in counter 223 is increased or decreased.
  • the code forwarded by the counter 223 via the output 126 is proportional to the amount of electricity which has flowed through the galvanic bath 94 (FIGS. 1, 2, 3, 4) in the direct and reverse direction.
  • a value corresponding to the amount of electricity that must pass through the galvanic bath 94 (FIGS. 1, 2, 3, 4) in the relevant electrochemical process is applied to the input 133 of the program end actuator 128.
  • This value is stored in the memory 226 (FIG. 15), and is passed from there to the input of the comparison circuit 227.
  • a current value of the quantity of electricity is applied to input 129. If the two values to be compared match, a signal appears at the output 132 of the program end actuator 128, which indicates the end of the program.
  • the voltage amplifier 172 (FIG. 16) of the ammeter 109 according to FIG. 9 has the following mode of operation,
  • the difference in the voltages supplied to the inputs 173 and 174 of the amplifier 172 is positive, it is amplified by the amplifier 229 of positive signals, and if the difference is negative, it is amplified by the amplifier 230 of negative signals and subsequently inverted by the negator 234.
  • a positive voltage arrives at the input 231 of the summer 233 from the amplifier 229 or at the input 235 from the negator 234, which voltage sums up and is passed on to the output 176 of the amplifier 172.
  • the maximum voltage meter 177 (FIG. 17) of the ammeter 109 in FIG. 9 operates as follows.
  • the voltage reaches input 178 of knife 177 and is amplified by differential amplifier 242.
  • the switch 245 is open, therefore the positive output voltage of the amplifier 242 unlocks the diode 240 and begins to charge the capacitor 246.
  • the voltage from the capacitor reaches input 234 of the amplifier.
  • the feedback that occurs compensates for a voltage drop across the conductive diode 240, so that the capacitor 246 is charged to the amplitude value of the supplied voltage.
  • the diode is blocked and the voltage across the capacitor remains unchanged.
  • the voltage is forwarded from the capacitor 246 to the output 179 of the knife.
  • the switch 245 is closed, the capacitor 246 discharges through it and the high-voltage meter 177 is prepared for a new measurement.
  • the circuit 182 for averaging the high voltage (FIG. 18) of the ammeter according to FIG. 10 acts as follows.
  • An information code corresponding to the maximum value of the voltage is fed to the input 181 of the circuit 182 and fed into the summator 251.
  • the flip-flop 263 is switched off, which is why the logic AND main element 256 and the additional AND element 260 are blocked.
  • the code passes through the summator 251 without changes and arrives at the input 250 of the main register 249.
  • the pulse arriving at the input 183 of the circuit 182 is applied to the input 265 of the register 249 and enters a code in it, which has come to the input 250.
  • the flip-flop 263 is reversed, the release signal is applied to the input 261 of the AND gate 256, the input 262 of the AND gate 260 and unlocked these AND gates.
  • the code passes via the AND gate 256 to the input 264 of the summer 251.
  • a subsequent code which has come to the input 181 of the circuit is summed in the summer 251 with the previous code and by the second, am Input 183 of circuit 182 incoming pulse written into register 249.
  • this pulse triggers the univibrator 258 via the AND gate 260, the output pulse of which arrives at the input 257 of the additional register 255 and rewrites the code from the register 249 therein.
  • the code is shifted by one digit in the direction of lower-order digits, which is equivalent to dividing the code by 2.
  • the flip-flop 263 is switched off again and the AND gates 256 and 260 are blocked.
  • the next code therefore passes through the summator 251 without changes and is written into the register 249. This results in an averaged value in register 255 from two successive variables. The value obtained in this way is passed on from register 255 to output 110 of circuit 182.
  • the voltage average meter 184 (FIG. 19) of the ammeter of FIG. 11 operates in the following manner.
  • the voltage applied to the input 185 of the voltmeter 184 is rectified by the two-way rectifier 268 and applied to the input 270 of the low-pass filter 269.
  • the filter 269 separates an average value of the voltage, which is transmitted to the output 125 of the knife 184.
  • the present invention can be successfully used to produce single and multi-layer electroplated coatings.
  • the invention can be used for electrochemical degreasing and etching.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Un dispositif d'application de revêtements galvaniques comporte un pupitre de commande (1) auquel sont reliés un bloc de synchronisation (14) relié électriquement à un sélecteur de cycle de programme (18), un sélecteur d'amplitude de tension (11) et un sélecteur de tension (6). Au bloc de synchronisation (14) sont reliés deux générateurs d'impulsion (30, 31) et un sélecteur (40) de périodes d'impulsions de polarité positive et négative, auquel est relié, ainsi qu'à chaque générateur d'impulsion, un circuit logique "ET" correspondant (50, 55). A chaque circuit logique "ET" (50, 55) sont reliées des lignes de temporisation correspondante (37, 36) ainsi qu'un bloc de génération du niveau de tension (60, 61) qui est relié à un interrupteur correspondant (74, 81). les interrupteurs (74, 81) sont reliés à un transformateur de puissance (20) et à un bain galvanique (94), chacun desquels est relié à un bloc de commutation correspondant (99, 100), relié à la ligne de temporisation correspondante (37, 36).
EP19880904291 1988-02-23 1988-02-23 Device for applying galvanic coatings Withdrawn EP0356516A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SU1988/000044 WO1989008157A1 (fr) 1988-02-23 1988-02-23 Dispositif d'application de revetements galvaniques

Publications (2)

Publication Number Publication Date
EP0356516A1 true EP0356516A1 (fr) 1990-03-07
EP0356516A4 EP0356516A4 (en) 1990-09-26

Family

ID=21617203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880904291 Withdrawn EP0356516A4 (en) 1988-02-23 1988-02-23 Device for applying galvanic coatings

Country Status (3)

Country Link
EP (1) EP0356516A4 (fr)
JP (1) JPH02504043A (fr)
WO (1) WO1989008157A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19545231A1 (de) * 1995-11-21 1997-05-22 Atotech Deutschland Gmbh Verfahren zur elektrolytischen Abscheidung von Metallschichten
EP1395690A2 (fr) * 1999-06-18 2004-03-10 Copper Refineries Pty.Ltd: Procede et dispositif de depot electrolytique de metal
AU2007249133B2 (en) * 2007-03-29 2010-07-15 Jx Nippon Mining & Metals Corporation Method of countermeasure against interruption of electric power in electrolytic refining of copper

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116437A1 (en) * 1970-12-01 1972-07-13 Hartkorn Karl Heinz Rectified current feed system - for electrolysis plant electrodes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU911351A1 (ru) * 1980-06-10 1982-03-07 Физико-Механический Институт Ан Усср Импульсный вольтметр
SU1022033A1 (ru) * 1981-05-15 1983-06-07 Предприятие П/Я М-5534 Устройство дл кулонометрического анализа
US4666567A (en) * 1981-07-31 1987-05-19 The Boeing Company Automated alternating polarity pulse electrolytic processing of electrically conductive substances
GB2121548B (en) * 1982-05-21 1985-09-11 Philips Electronic Associated Peak voltage detector circuit
SU1350194A1 (ru) * 1986-03-14 1987-11-07 Кишиневский Сельскохозяйственный Институт Им.М.В.Фрунзе Преобразователь дл питани гальванических ванн периодическим током

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116437A1 (en) * 1970-12-01 1972-07-13 Hartkorn Karl Heinz Rectified current feed system - for electrolysis plant electrodes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8908157A1 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19545231A1 (de) * 1995-11-21 1997-05-22 Atotech Deutschland Gmbh Verfahren zur elektrolytischen Abscheidung von Metallschichten
EP1395690A2 (fr) * 1999-06-18 2004-03-10 Copper Refineries Pty.Ltd: Procede et dispositif de depot electrolytique de metal
EP1395690A4 (fr) * 1999-06-18 2004-03-10 Copper Refineries Pty Ltd Procede et dispositif de depot electrolytique de metal
US6814847B1 (en) 1999-06-18 2004-11-09 Copper Refineries Pty Ltd Method and apparatus for electro-deposition of metal
AU2007249133B2 (en) * 2007-03-29 2010-07-15 Jx Nippon Mining & Metals Corporation Method of countermeasure against interruption of electric power in electrolytic refining of copper

Also Published As

Publication number Publication date
EP0356516A4 (en) 1990-09-26
WO1989008157A1 (fr) 1989-09-08
JPH02504043A (ja) 1990-11-22

Similar Documents

Publication Publication Date Title
DE3125664C2 (fr)
DE1448914A1 (de) Integrationssummierer
DE2216123B2 (de) Verfahren und Anordnung zur Analog-Digital-Umsetzung unter mehrfacher Integration
DE2923026C2 (de) Verfahren zur Analog/Digital-Umsetzung und Anordnung zur Durchführung des Verfahrens
DE2323826B2 (fr)
DE3107580C2 (fr)
DE2421992A1 (de) Vorrichtung zum voreinstellen eines zaehlers
EP0356516A1 (fr) Dispositif d'application de revetements galvaniques
DE1613979B2 (de) Gleichspannungswandler
DE2221717B2 (de) Teilnehmerschaltung für Fernsprechvermittlungsanlagen zur Zuführung des Rufstromes an die Teilnehmerstation und zur Feststellung des Schleifenzustandes
EP0003510B1 (fr) Générateur en forme de rampe pour produire un signal de commande temporisé pour un dispositif électrique d'une boudineuse
DE1816781C2 (de) Digitaler Koordinatenwandler
DE2246040A1 (de) Steuersystem fuer die automatische zeitsteuerung eines vorgeschriebenen ablaufes von vorgaengen
DE918965C (de) Dekadischer, aus Triggerkreisen bestehender Roehrenzaehler
DE2003405C3 (de) Anordnung zur Feststellung der Phasenvoreilung bzw. Phasennacheilung einer elektrischen Wechselgröße in bezug auf eine Bezugsgröße gleicher Frequenz
DE3217376A1 (de) Impulsgenerator
DE815980C (de) Steuervorrichtung fuer Waehler in Fernmeldeanlagen
DE968309C (de) Dekadischer Roehrenzaehler
DE2052967B2 (de) Rundsteuerempfänger
DE1522804C3 (de) Schaltungsanordnung zur Erzeugung von Preiseinheiten in Kopiermaschinen
DE1288132B (de) Elektrische Impulsverzoegerungsschaltung
DE1513466C (de) Verfahren und Anordnung zur Steu erung der Ausgangsspannung eines statischen Gleichrichters
DE1498082C (de) Vorrichtung zum Bestimmen der Bewegungsgröße und -richtung eines Gegenstandes
DE963380C (de) Aus Triggerkreisen bestehender dual-dezimal arbeitender Zaehler
DE1065192B (de) Nach dem Dezimal-System arbeitende elektronische Rechenmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19891030

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI SE

A4 Supplementary search report drawn up and despatched

Effective date: 19900809

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): CH DE FR GB IT LI SE

17Q First examination report despatched

Effective date: 19910917

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19920128