Electroplating equipment Working principle of
Electroplating equipment may not be able to accumulate positive ions of metal materials from the solution. If the adverse reaction of the hydroxide ion on the cathode returning to hydrogen has a key impact, the positive ion of the metal material cannot be dissolved on the cathode. According to the experiment, the probability of positive ions of metal materials accumulating from the solution can obtain the necessary regularity from the periodic table of elements. Anodizing is divided into soluble anodizing and insoluble anodizing. Most anodic oxidation is soluble anodic oxidation corresponding to the coating, such as zinc anode for hot galvanizing, silver anode for nickel/silver plating, and tin plated purple lead alloy anode for tin lead alloy.
However, due to the difficulty of anodic oxidation and melting, very few electroplating processes use insoluble anodic oxidation. For example, commonly used platinum or titanium anodes are used for acid-base gilding. The positive ions of the main salt of the plating solution are filled with gold containing aqueous solution with standard configuration. Stainless steel anodizing adopts insoluble anodizing such as pure lead, lead tin aluminum alloy, lead antimony aluminum alloy, etc. The traveling wheel adopts steel core. Polyester vulcanized rubber composite structure, imported induction coil proximity switch, imported soft starter and imported well-known brand brake motor operate stably and stop accurately. Corrosion resistant pump, corrosion resistant column pump and self-priming pump continue to work, with high production efficiency and large production.
Automatic gantry electroplating production line, computer operation automatically returns to the target actual operation, greatly reducing the labor efficiency of employees. The design scheme of the production line is effective, the structure is compact, and the floor area is small, which can greatly improve the office environment. Bidirectional thyristor electroplating power supply has two key methods in power circuit structure:
1. Bi directional thyristors are used at multiple sides of the power frequency transformer for voltage transformation, and then silicon tube polyphase rectifiers are used at the secondary side.
2. Immediately use bidirectional thyristor on the other side of the power frequency transformer for transformer rectifier.
At present, most of the rectifier transformers use three-phase five column core environment-friendly transformers, which saves the balance reactor, and electroplating equipment manufacturers reduce costs and improve efficiency. The power maintenance of bidirectional thyristor is relatively complicated. During maintenance, common fault locations shall be distinguished first. Z can select the AC voltage of the digital multimeter at 2.3V, cut off the operating pole, and accurately measure the operating voltage of the bidirectional thyristor operating pole. Adjust the operating knob. If the working voltage is above or below 0IV (different bidirectional thyristors have different working voltage values), open the operating part and everything is normal, but the bidirectional thyristors are abnormal. If there is no working voltage or the working voltage value is not large, the controller will turn on abnormally. First, check whether the operating frequency entered by the controller and the synchronous operating voltage are normal. Clear the displayed operating frequency. After the common faults of the synchronous operating voltage transformer, the common faults are concentrated on the open board and need to be replaced or repaired.
The key difference between the vertical electroplating process line and the horizontal electroplating process line is that the transportation mode of the circuit board is different, and the maintenance method of the tank body is essentially similar. 7d Stop cleaning the pickling tank for many times and replace the tank solution; Stop checking the tank spray installation for many times, check whether there is blockage, immediately stop dredging, contact the Star Wars Empire with conductive rubber support and anodic oxidation, stop cleaning for many times, scrub with towel, and stop polishing with sandpaper; The barrel plating bath, tin plating purple bath titanium basket and tin basket shall be checked for many times, and the decayed titanium basket and tin basket shall be replaced. Copper balls and tin bars shall be added, and copper balls and tin bars shall be added 7d later. After the tin bars are added, the copper plating bath and tin plating bath shall terminate the titanium electrode. 7d The method of high and low flow should also be adopted to terminate the trial consumption, so that the consumption of new copper balls and tin bars will be stable after the consumption of new copper balls and tin bars is stable. The bath solution shall be cleaned with activated carbon for many times every 130~130 days, the residue in the bath solution shall be filtered out, and the tin bath shall be cleaned for many times.
