Electroplating wastewater treatment equipment Electroplating method of
The last method of brush plating is called brush plating: it is an electroplating method, and not all electroplating methods are immersed in electrolytic solution. This is an electroplating process, and only a small part can be plated, without affecting other parts. Fingerprinting Electroplating equipment In electroplating, it is often necessary to plate rare metals on the plate edge connectors. The protruding contacts or gold fingers on the plate edge are to provide lower contact resistance and higher wear resistance. This process is called finger plating or convex plating.
The utility model also often uses manual or automatic electroplating technology to protrude the nickel plated edge connector of the gold plated nickel sheet from the contact, the gold finger or the protruding part of the plate edge, and now uses lead plating and button plating instead of lead plating and button plating. The plugs and plugs of roller linked selective plating electronic components, such as connectors, integrated circuits, transistors and flexible printed circuits, are all plated with selected materials to obtain good contact resistance and corrosion resistance.
This electroplating method can use manual electroplating lines or automatic electroplating machines. Each type of electroplating machine is very expensive. The electroplating plant must use batch welding for wastewater treatment equipment. The electroplating plant generally punches the two ends of rolled metal foil to the required thickness, cleans it by chemical or mechanical methods, and selectively uses metal sheets, silver sheets Continuous electroplating of tin nickel alloy, etc.
The current is calculated according to the plating area. For example, for the chromium plating process, if the solution is 600L, the maximum allowable current density of the electroplating equipment can reach 100A/dm2 at 60 ℃, and the full load of the plating tank can reach 10dm2, then the maximum output current of the required power supply is 100A/dm2 × 10dm2=1000A, that is, 1000A.18V rectifier power supply shall be configured. After the power size of the power supply is determined.
In addition, the power waveform, cooling mode, size and corrosion resistance of the electroplating machine can also be selected according to the requirements of the electroplating process and the situation of the electroplating site. Cost factors are only balanced. Therefore, the selection of power supply for electroplating equipment is also a subject, which needs to meet three requirements: specifications that meet the requirements of electroplating process, power supply, waveform index, adjustable range of current and voltage values, etc; The reliability of the power supply itself mainly involves reasonable structure, safety, circuit characteristics, cooling mode, etc; Consider the price performance price ratio.
