Barrel plating power supply system

A technology of power supply system and barrel plating, which is applied in general control system, control/regulation system, instrument, etc.

Inactive Publication Date: 2014-09-17
BEIJING ZHONG KE SAN HUAN HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reduces plating quality issues caused by drum stalls and / or conductive tip de-energization with timely alarms that prompt operators to respond to faults

Method used

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  • Barrel plating power supply system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In this implementation, the power supply is provided with two cathode outputs, and each of the two cathode outputs has a conductive head to transmit current to the workpiece to be plated. Since the power supply adopts constant current output mode, the sum of the output currents of the two conductive heads is the set output current of the power supply.

[0021] The set constant current output of the power supply is 20A, and the PLC control module records the current data once every 0.1 second.

[0022] The current output on the first conductive head recorded for the first time is I 1 , the current output on the second conductive head is I 1 ′, the current difference between the two conductive heads is ⊿I 1 ; The current output on the first conductive head of the nth record by analogy is I n , the current output on the second conductive head is I n ′, the current difference between the two conductive heads is ⊿I n .

[0023] The inventor found through simulation tes...

Embodiment 2

[0026] In Example 2, the power supply has only one cathode output. In this case, the PLC control module records one current data each time, and then calculates the current difference between the two consecutive records. If the number of times that the current difference is smaller than the preset value reaches a predetermined number of times within the set time period, an alarm prompting that the drum stops rotating will be issued.

[0027] Same as Embodiment 1, the alarm prompt of power-off is also determined by detecting whether the current exceeds a preset fluctuation range. If the PLC control module detects that the number of times that the current exceeds the fluctuation range reaches a predetermined number of times within the set time period, an alarm prompt for power-off will be issued.

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PUM

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Abstract

Provided in the invention is a barrel plating power supply system comprising a power supply, a current measuring apparatus and a programmable logic controller control module. The power supply includes a cathode output and the current is outputted and transmitted to a plated work piece. The current measuring apparatus measures the current outputted by the cathode output. The power supply is in a constant-current output mode. The programmable logic controller control module records the current at a predetermined frequency and calculates the current change. Within a predetermined time period, the programmable logic controller control module calculates a current different between two adjacent records. And when the number of times of the current difference less than a preset value reaches the preset number of times, the barrel plating power supply system sends out fault alarm prompting information for electroplated barrel rotation stopping; and when the number of time of exceeding a preset range by the current reaches the preset number of times within the predetermined time period, the barrel plating power supply system sends out alarm prompting information for electricity separation.

Description

technical field [0001] The invention relates to a barrel plating power supply system, in particular to a power supply system capable of alarming and prompting the failure of the electroplating cylinder to stop and / or the failure of the conductive head to be de-energized. Background technique [0002] In recent years, the application and development of rare earth neodymium-iron-boron (NdFeB) permanent magnets has been very rapid, but the corrosion resistance of NdFeB materials is extremely poor, and they are easily rusted and corroded in humid environments, resulting in a decline in magnet performance. [0003] Electroplating is one of the commonly used anti-corrosion methods for NdFeB materials, which has the advantages of strong protection ability and stable process. Due to the small size of most NdFeB materials, the traditional NdFeB electroplating process usually uses barrel plating. However, in the barrel plating process, there are two problems: the one is that the cyli...

Claims

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Application Information

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IPC IPC(8): G05B19/048
Inventor 魏群力李维科董文雪
Owner BEIJING ZHONG KE SAN HUAN HI TECH
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