Maintenance of PCB electroplating production line

Nov. 01, 2022   |   237 views

In the production process of printed circuit board, there are two kinds of main electroplating equipment, one is horizontal electroplating line, the other is vertical electroplating line. The two different structures of electroplating equipment, mainly the delivery of the circuit board is different, the conveyor board equipment structure is not the same, so the maintenance is also slightly different.

Daily maintenance and maintenance methods

1, tank maintenance and maintenance of vertical electroplating line and horizontal electroplating line is the main difference between the circuit board delivery method is different, and the tank maintenance and maintenance method is essentially the same. 7d to clean the water tank once for the pickling tank, once for cleaning and replacing the tank liquid; The spray device in the tank body is checked once to check whether there is a blockage, and the blockage should be dredge in time; On the copper trough, tin trough conductive support and anode and the contact position of the wire, a clean cleaning can be used to wipe the cloth and sandpaper grinding; The copper bath, tin bath titanium basket, tin basket for a check, replace the rotten titanium basket, tin basket, and add copper ball, tin, in 7 days after adding copper ball, tin, electroplating copper tank, tin tank electrolysis.

7d should also use high and low current mode for trial production, so that the new added copper ball, tin strip after the production performance is stable before production. The copper ball and anode bag should be cleaned every 90. Use active carbon to filter and clean the tank every 120~150 days, filter out impurities in the tank, and clean the tin tank once.

2,Maintenance and maintenance of vertical electroplating line vibration mechanism on vertical electroplating, in order to ensure the uniformity of copper plating surface and the effect of hole copper, the plate will vibrate and sway, and there will be a vibration and sway mechanism on the groove body.

30d to check the reducer, to see whether it is running normally, check its tightness; To check the vibration mounting motor bolts for tightness; Check the wear of vibration rubber, for serious wear, to be replaced in time.

Check the contact situation of the power cables in the junction box, tighten the joints in time if they are loose, and replace the power cables with melted or aging insulation layers to ensure the insulation between the power cables. All bearings on the vibration mechanism should be checked once, the last grease, and the bearings with serious wear should be replaced in time.

3,Maintenance and maintenance of vertical electroplating line driving vertical electroplating line is the use of driving, hanging tools to transmit the circuit board. The crane and the hanging gear should be cleaned once a week (the driving and hanging gear need not be disassembled), so that the appearance of the crane should be kept neat, and the cleaning cloth can be used to wipe, and the sand paper can be used to polish. 30d to carry out an inspection of the hanger, check the damage of the hanger; Check and maintain the motor and reducer, check the whole transmission device to ensure its normal operation. 180d to carry out an in-depth cleaning and maintenance of the driving and hangers, the hangers should be removed from the driving for cleaning.

4, horizontal electroplating line transmission device maintenance and maintenance of the horizontal electroplating line is the conveyor device is the wheel, the use of the wheel rotation will be continuous circuit board into each groove, therefore, the maintenance of the horizontal electroplating line transmission device and vertical electroplating line has some differences. 7d Clean the roller of the horizontal electroplating line once to clean the adhering foreign matter on the roller to ensure the clean surface of the plate when conveying the plate; The actuator should be checked for looseness. The roller is checked every 180d to check whether there is wear and tear of the roller, and the worn roller is replaced in time to ensure that there is no clamping phenomenon when conveying the plate; The transmission gear, transmission shaft and the whole transmission system device should be checked once, and the problems should be repaired in time.

5,Maintenance and maintenance of the circulation filtration system Check the filter cylinder of the circulation filtration system once every 7 days to check whether the filter cylinder has leakage. Clean or replace the filter cotton core every 10 to 15 days. 30d to replace the filter carbon core, to ensure the quality of the filter and the flow of the filter; To clean the filter pump and clean the filter hood and filter net of the air pump. 30d check the contact situation of the power cable joint of the pump motor once. If it is loose, it should be tightened in time. If the wire is old, it should be replaced with a new one to ensure good contact and safe insulation and protect the motor.

6,The maintenance and maintenance of other parts shall be carried out twice on the output power of the power supply for 7d; To check the power supply, electrical control of the heat dissipation, heat sink, dust, clean, prevent its influence on heat dissipation. 30d to check the electrical components of the electrical unit, such as damage and corrosion to timely replacement; Check all connectors. If there is poor contact, virtual connection and welding, repair in time. If there is corrosion and damage, replace in time. Check the contactors and relays, if there is poor contact or contact adhesion, to replace in time; Check the main parameters of capacitors, reactors, resistors and other components, if abnormal, to replace as soon as possible.

For the automatic feeding system, check and calibrate once every 7 days. 7d to clean the scale and dirt on the electric heater, to prevent the internal temperature of the electric heater is too high.,

For each water and gas pipe system, it should be checked once every 7 days to check whether there is running and leaking liquid phenomenon, and the pipeline with running and leaking liquid phenomenon should be repaired and replaced in time.

7,Maintenance discussion before long-term shutdown if the equipment plans to shut down for a long time, it is necessary to maintain it, so that it will not be eroded and aging during the shutdown process. It is necessary to clean the ground, wipe the water on the ground, keep the ground dry, and make the machine, trough, driving and hanging tools to keep clean and dry; All motors are best protected by wrapping them in crisper; All bearings are injected with grease for rust prevention; All the potions in the pipeline are completely clean; The liquid medicine in the filter bucket of the filter machine is put clean; Take out the filter element and clean it; All heaters in the tank should be cleaned to remove dirt and keep dry.

Printed circuit board production application of electroplating equipment, as a result of the production process is different, the manufacturer is different, the device will have certain difference, therefore, will have some differences in maintenance methods, but must be to promptly correct maintenance of equipment, must not because out production schedule, production and way of equipment maintenance and maintenance, only do maintenance correct, timely, In order to ensure the normal operation of the equipment, stable performance, to ensure the production of output and quality.