Different electroplating equipment, maintenance and maintenance methods can be treated differently

At present, with the continuous development of technology, modern electroplating equipment has become an indispensable part of the development of contemporary electroplating enterprises.

If electroplating enterprises want to carry out large-scale and large-scale production and processing of electroplating products in a short period of time, they are inseparable from modern electroplating equipment.

In order to ensure the normal operation of electroplating equipment, timely and effective repair and maintenance of electroplating equipment must be carried out.

1. Hanging plating automatic production line

Hanging plating automatic production lines are roughly divided into two types, namely linear automatic production lines and mechanical automatic production lines.

In the past, in the ring electroplating production line, the more representative production enterprises were Guangdong Chaozhou Machinery Factory and Nanjing Light Industry Machinery Factory. After the reform and opening up, many enterprises from Taiwan and Hong Kong have emerged, and these enterprises have established many electroplating equipment factories in China, bringing advanced production management experience, new technology, and new components, so that the manufacturing level of domestic annular electroplating automatic production line has been greatly improved.

2. Automatic roll plating production line

Automatic roller plating production lines are roughly divided into two types, namely linear gantry automatic production lines and ring mechanical production automatic lines.

Among them, the bell-shaped drum with inclined automatic loading and unloading is suitable for the use of circular mechanical production automatic line.

In addition, the ring mechanical production automatic line is also used to produce standard parts for domestic FAW and FAW.

3. Plating power supply

In the process of electroplating production, the electroplating power supply is the most important auxiliary equipment.

At present, triac rectifiers and silicon rectifiers are still the main auxiliary equipment used in China.

Most of the triac rectifiers and silicon rectifiers have a voltage of 12V and a current of 100~20000A, all of which are low-voltage and high-current equipment. Only when the load is relatively large, the triac rectifier will have a better waveform.

At present, our country is vigorously promoting electroplating power supplies with stable current and voltage, and most electroplating power supplies require the installation of A/D conversion to realize the control of PC computers.

4. Electroplating solution filtration equipment

An important factor in the quality of electroplating products is the filter.

In the past, filters from Japan and the Netherlands were mainly used, but now cartridge pressure filters are mainly used.

The centrifugal pump filter produced by Sanjin Manufacturing in Japan has a very large filter bag and a large filtration capacity. Magnetic pump filter is also a representative work produced in Japan, its filtration capacity is relatively small, at present, more use is cartridge pressure filter, the maximum filtration volume is 20t/h, not long ago Japan developed a new filter, mainly used for chrome plating, electroless nickel plating and chrome plating, whether it is in terms of product materials, or product quality, has been greatly improved.

5. Cooling and heating equipment

The traditional electroplating heating method is mainly electric heating and steam.

Diesel burners manufactured in Sweden, Italy, and Germany, the hot water tank can be heated by the diesel burner, the temperature can be controlled by the thermostat, and the hot water can be transported from the water pipeline to the tank that needs to be heated.

Painting drying box and plating tank are the first equipment to be heated by fuel equipment, which helps to save electricity.

At present, many electroplating companies in our country are using natural gas hot water boilers for hot water circulation heating. The natural gas hot water boiler is equipped with a microcomputer controller, imported burner, and a fully automatic circulation boiler with hot water and hot water circulation pump in the heating pipeline to achieve the purpose of heating and help improve the quality of electroplating products.

In addition, the cooling equipment mainly used by most electroplating companies is the cooling unit.

The main components of the cooling unit are compressor, evaporator, condenser, and expansion valve, which can directly cool the chemical liquid for circulation or circulate the cooling liquid through water, so as to achieve the cooling effect of the unit.

1. Rack

After 1 month of production, the mounting screws in the rack should be retightened.

In order to ensure that the frame remains clean for a long time, the sliding doors, pedestrian walkway railings, stainless steel column surfaces, etc. in the rack should be cleaned every 4 months.

2. Crane

For the reducer, it should be inspected every 700~800h to check whether it produces abnormal noise, and at the same time check and adjust the fastening of the reducer seat.

In order to avoid damage to the shaft, bearing, and housing, it is strictly forbidden to use a hammer to strike when installing pulleys, couplings, and gears.

For the brake mechanism, it should be inspected and debugged every 7000~8000h. For the power cord in the junction box, its contact should be checked every 7000~8000h, and once it is found that there is a loose joint, it should be tightened in time.

For the wire insulation, once there is aging and melting, the power cord should be updated in time, so as to effectively improve the insulation of the power cord. For bearings and housings, they should be checked for lubrication and tightness every 7000~8000h.

For lifting guide wheels, check and adjust its clamping clearance every 600~700h, and consider whether to replace the guide wheels every 10000h according to the actual situation.

For the traverse guide wheel, its installation clearance should be checked and adjusted every 700~800h. For the secondary traverse main and driven wheels, its positioning state and fastening state should be checked every 700~800h, and once there is a loosening phenomenon and displacement, it should be fastened and straightened in time.

For the sling cleat, its fastening should be checked every 10000h, the bolts should be tightened, and the sling should be replaced every 20000h according to the actual situation.

For sensors and sensor pieces, their relative positions should be checked and corrected every 7000~8000h. For two gear racks, the synchronization of their meshing should be checked and adjusted every 2000h.

3. Swing mechanism

For the reducer, its operating status should be checked every 600~700h, and for the fastening of the reducer seat, it should be checked and adjusted every 1000h.

For the brake mechanism, its braking performance should be checked and debugged every 7000~8000h. For the power cord in the junction box, its contact should be checked every 7000~8000h, and once it is found that there is a loose joint, it should be tightened in time.

For the wire insulation, once there is aging and melting, the power cord should be updated in time, so as to effectively improve the insulation of the power cord. For roller bearings, grease should be applied to them every 5000h to replace bearings with serious wear.

For the vibration motor mounting bolts, the wear of the vibration rubber should be checked once every 1000h, and the vibration rubber with serious wear should be replaced.

4. Circulating filtration system

For the pump motor power cable, the contact of its joints should be checked every 1000h, once there is a loose phenomenon, it should be tightened in time, in order to ensure the safe insulation and good contact of the route, the aging wire should be replaced.

For the filter element of the filter, in order to ensure the flow rate of the filter, it should be replaced every 10 days. In order to prevent the float in the flowmeter from rapidly colliding and causing the glass tube to rupture, the ball valve in front of the flowmeter should be opened and closed slowly. At the same time, the reading in the filter pressure gauge should be checked once a day.

Generally speaking, the pressure gauge will not be damaged, unless the diaphragm in the pressure gauge seat is aging, cracking, perforation, etc., resulting in the direct inflow of potion in the pressure gauge, which will corrode and damage the Bourdon copper pipe in the pressure gauge.

In this case, the pressure gauge and diaphragm need to be replaced. If the filter pressure gauge reading is low, the following aspects should be checked, that is, whether the power connector of the pump motor is out of phase and has poor contact; whether the pressure gauge is failing; whether the pump outlet line is blocked; If there is air inflow between the pressure gauge and the diaphragm in the pressure gauge base, if so, the pressure gauge should be removed, water should be added to the diaphragm cavity until it is full, and then the pressure gauge should be installed.

If the filter pressure gauge reading is high, the following aspects should be checked, that is, whether there is a serious scale accumulation phenomenon in the filter element; whether the crystals block the nozzle hole of the water nozzle in the tank; whether the pressure gauge is failing; whether the pump outlet pipeline is blocked, etc.

5. Other parts

Other components, including exhaust systems, heaters, hangers and daggers, cooling coils, troughs, anodes, low-pressure blowers, etc. For these parts, they should also be repaired and maintained.

If the electroplating equipment is to be shut down for a long time, the following maintenance measures should be taken, namely: to ensure that the machine is in a dry environment, the water on the ground should be cleaned;

In order to prevent aging, wrap all motors with plastic wrap; Inject grease into all bearings; Inject grease into all rubber wheel bearings in the crane; wrap all the oil injection parts in the crane with plastic wrap; Clean all pipelines; Clean all heaters and cooling coils.

After a long period of shutdown, before restarting again, all the plastic wrap outsourced in the equipment parts during the shutdown should be removed;

For all the terminals in the motor junction box, check its contact, and replace the wires if there is aging;

For the reducer, the lubrication in the machine should be checked, and whether the reducer will produce noise during the trial operation of the motor. Check the lubrication of all bearings and rubber wheel bearings.

According to the actual situation, consider whether to inject grease; For the oil-sprayed parts in the frame, they should be inspected, and once the paint of some parts peels off and ages, they should be sprayed and repaired.

All fasteners in the rack should be checked for their tightness. In order to keep the plating machine in a clean state, all stainless steel parts surfaces, sliding doors, etc. should be cleaned; For the trough, it should be checked for water leakage, and once there is a water leakage, it should be repaired; Inspect all pipelines, and repair and replace leaking pipe fittings once there is a water leakage problem.

For brake motors, their braking performance should be comprehensively checked, and the reliability and sensitivity of the instruments in the pipeline should be checked.