Controllable power supply and automatic electrode clamping device for plating inner wall of small deep hole with chromium
A clamping device and automatic clamping technology, applied in the direction of current conduction device, electrolysis process, electrolysis components, etc., can solve the problem of uneven distribution of coating thickness of slender tubes, achieve uniform effective current density, improve processing pass rate, The effect of uniform thickness
Pending Publication Date: 2021-01-08
CHONGQING JIANSHE IND GRP
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Problems solved by technology
[0005] The purpose of the present invention is to overcome the deficiencies of the existing chrome-plated power supply devices, and provide a controllable power supply and electrode automatic clamping device for deep small holes. Through research and test verification, the controllable power supply device can solve the problem The problem of uneven distribution of tube coating thickness
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[0024] The working principle and structure of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings.
[0025] Such as Figure 1 to Figure 3 As shown, a controllable power supply and electrode automatic clamping device for chrome plating on the inner wall of a deep small hole, including an anode rod upper end clamping device 1 and an anode rod lower end clamping device 5 installed on the electroplating machine tool, the anode rod lower end clamping device The device 5 is arranged under the clamping device 1 at the upper end of the anode rod, cooperates with the clamping device 1 at the upper end of the anode rod, and is used to clamp the anode rod 2;
[0026] Such as figure 2 As shown, the structure and function of the clamping device 1 at the upper end of the anode rod and the clamping device 5 at the lower end of the anode rod are consistent, and both include a first cylinder 11, a first piston 12, ...
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The invention discloses a controllable power supply and automatic electrode clamping device for plating an inner wall of a small deep hole with chromium. The device comprises an anode rod upper end clamping device, an anode rod lower end clamping device, a slender tube, a cathode clamping device, a DC source is1 and a DC source is2, wherein the anode rod lower end clamping device is arranged at the lower part and is matched with the anode rod upper end clamping device to clamp an anode rod; the slender tube is arranged outside the anode rod in a sleeving manner, is arranged between the anode rod upper end clamping device and the anode rod lower end clamping device, and is a cathode part for electroplating; the cathode clamping device is used for clamping or loosening the slender tube; positive electrodes of the DC source is1 and the DC source is2 are separately connected with the anode rod upper end clamping device and the anode rod lower end clamping device to transmit current to theanode rod, and negative electrodes of the DC source is1 and the DC source is2 are connected with the cathode clamping device to transmit the current to the slender tube; and the DC source is1 and theDC source is2 supply power from two ends of the anode rod separately, the magnitudes of the current at the two ends are adjustable, so that controllable power supply is achieved.
Description
technical field [0001] The invention relates to the technical field of electroplating, in particular to a controllable power supply and electrode automatic clamping device for chrome plating on the inner wall of a deep small hole. Background technique [0002] The deep hole of a slender tube is under extremely harsh working conditions, and it needs to have extremely high wear resistance and ablation resistance. Common metal materials are difficult to meet the requirements of this working condition, and it is usually necessary to electroplate a layer metal chrome. [0003] On the one hand, since the aspect ratio of the slender tube exceeds 70, during the electroplating process, due to the attenuation of the anode current, the current density at different parts of the inner wall of the deep hole is inconsistent, resulting in differences in the deposition rate of metal chromium at different parts of the inner wall, making the chromium layer at different parts Inconsistent thic...
Claims
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IPC IPC(8): C25D17/06C25D17/00C25D5/02C25D7/04C25D3/04
CPCC25D3/04C25D5/02C25D7/04C25D17/00C25D17/007C25D17/06
Inventor 张必良喻翔刘兵李洪
Owner CHONGQING JIANSHE IND GRP