Plastic plating-Selection of plating equipment is critical to ensuring the quality of plating products
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The selection of electroplating equipment is of key significance to ensuring the quality of electroplating products and improving production efficiency. The program-controllable gantry plating line, circular automatic plating line and barrel plating automatic production line, as well as supporting peripheral equipment such as rectifiers, filters, heat exchangers, ultrasonic cleaners and automatic additive replenishing machines, etc., are introduced in detail.
Automatic plating production line: The automatic hanging plating production line is divided into circular mechanical or hydraulic automatic production line and linear automatic production line
Advantages of early circular lines:
1)High degree of automation, high efficiency, reduced labor intensity, and fewer operators;
2)Lever-type vertical lifting, high utilization rate of plating tank capacity;
3)Short exposure time, smooth operation of the workpiece, about 20~ i00 seconds per arm;
4)Suitable for coating with high quality requirements. A large-volume, single-shaped, and mature electroplating light mechanical circular electroplating production line (commonly known as hanging fish type). Because it is cheap, light, easy to maintain, and high output, it has a good market.
Advantages of linear automatic plating line:
1)High degree of automation, high efficiency, and reduced labor intensity. Reduce operators;
2)It is suitable for electroplating heavy parts and large objects, as well as for electroplating parts of different shapes and batches;
3)It is convenient to change driving working conditions. Flexible plating time control, suitable for plating in a variety of production processes;
4)The plating quality is excellent and stable. Suitable for processes requiring thick coating.
There are also two categories of barrel plating automatic lines: circular mechanical or hydraulic automatic lines and linear gantry automatic lines. Annular mechanical bell-shaped drum suitable for tilting automatic loading and unloading
High-speed plating equipment (plates, wires) and selective plating equipment have developed with the development of economy and the advancement of electronic plating. Automatic production line for high-speed electroplating. Demand for selective plating production lines has increased. Most of them are undertaken by companies with greater technical and manufacturing capabilities.
Auxiliary equipment around electroplating production line
Electroplating power supply is the most important auxiliary equipment in the electroplating production process. Silicon rectifiers and silicon controlled rectifiers are still widely used in China, which are divided into voltage regulator regulation, magnetic saturation reactor regulation and silicon controlled voltage regulation. Silicon rectifiers and silicon controlled rectifiers used for electroplating are both low voltage and high current, generally 12V (18V is selected for chrome plating). Silicon rectifiers with silicon controlled voltage from 100A to 20000A can only be used when the load is high. Electroplating power supplies with good flow and stable current density are also being promoted and applied.
Electroplating solution filtration equipment Filters are one of the key equipment related to the quality of electroplating products. Both filter elements and filter cloth can be produced and selected. Pay attention to the "real" filtration accuracy. There are still some problems in the production of filters:
1)The specifications and high reliability of the filter table used for chromium plating and electroless nickel plating have yet to be studied. Special plastics such as polyvinylidene fluoride (PVDF) and chlorinated polyvinyl chloride (CPVC) and related parts must be introduced. Chrome-plated filters cannot be made of polypropylene plastic.
2)High-quality magnetic pumps to be developed
3)The filtration accuracy provided by the factory now needs to be confirmed by scientific means. Special filter cloth, filter bags and filter papers have yet to be produced.
4)The shaft seal material of centrifugal filters needs to be improved, and the problems of wear resistance and leakage prevention should be solved.
5)The electroplating process is changing with each passing day, and auxiliary equipment must also keep up, such as a special chemical degreasing filter for pretreatment, which can not only separate floating oil on the liquid surface, but also absorb suspended oil droplets. It will greatly improve the quality of electroplating products and improve the quality of phosphating films.
Ultrasonic equipment uses the cavitation effect of ultrasonic waves, which can greatly speed up degreasing and rust removal of pretreatment and shorten treatment time. To improve the degreasing and rust removal effect, heating and cooling equipment Traditional electroplating heating methods mostly use steam or electric heating Currently diesel burners are used to heat the hot water tanks. Chillers are commonly used in summer. Ensure that acidic bright copper and bright tin plating work at standard operating temperatures.
Automatic electroplating solution management system The automatic solution management system is a dynamic detection and control device for solution composition and process parameters
Electroplating and coating composite process application equipment-cathodic electrophoresis With the increase in requirements for decoration and corrosion resistance of plated products, many products require electrodeposition of a layer of coating after multi-color plating. Cathodic electrophoretic paints have begun to be used in large quantities in the electroplating industry.
Electroplating equipment management: management of electroplating hangers, management of electroplating auxiliary equipment, management of anodes, management of electroplating auxiliary equipment, location of electroplating production, scale of electroplating production, equipment for electroplating production, and management of major electroplating equipment.
