Metal product electroplating equipment

Abstract

The invention discloses metal product electroplating equipment. The metal product electroplating equipment comprises an electrolytic tank, a supporting piece, a power supply assembly, a connecting piece, a plurality of anode rods, an inert anode, a plurality of groups of cathode assemblies, a motor assembly and an intermediate piece; the inert anode is electrically connected with the positive electrode of the power supply assembly; each cathode assembly comprises a cathode rod, a central roller movably connected to the cathode rod, an accommodating frame connected with the central roller and aclamping part arranged below the accommodating frame; each accommodating frame is provided with a plurality of square frames; and the square frames can be opened and closed around the axial center ofeach central roller, are made of conductive materials and are electrically connected with the negative electrode of the power supply assembly. By arranging the cathode assemblies, the current flowingon a piece to be plated can uniformly sweep the surface of the piece to be plated, so that a plating layer with uniform thickness is formed on the surface of the piece to be plated, and the quality of a metal product is improved.

Description

technical field [0001] The invention belongs to the technical field of metal product surface processing, and in particular relates to a metal product electroplating equipment. Background technique [0002] Existing electroplating equipment for metal products generally uses electrolytic reaction to coat the outer surface of the metal. Electrolysis is the process of passing an electric current through an electrolytic solution or molten electrolyte, causing redox reactions at the cathode and anode. Electrochemical cells can undergo electrolysis when a DC voltage is applied, and the chemical change is that the substance loses or gains electrons (oxidation or reduction). The electrolytic cell is composed of negative and positive electrodes immersed in a solution containing positive and negative ions respectively. The current flows into the negative electrode (cathode), and the positively charged positive ions in the solution migrate to the cathode and combine with electrons to b...

AI Technical Summary

Problems solved by technology

[0003] After the negative electrode of the power supply is connected to the piece to be plated, the voltage drop at the first contact between the piece to be plated and the current increases sharply, and the metal cations in the electroplating solution near the contact point quickly combine with the electrons near the contact point. A large amount of metal is precipitated, and its thickness is far greater than the thickness of the coating on the rest of the piece to be plated, resulting in uneven coating thickness on the surface of the piece to be plated, affecting the quality of metal products

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