Surface Treatment Plant

Surface Treatment Plant

Teaching Objectives of Surface Treatment Plant

This system covers a wide range of themes which can be developed.

• Management of the intense currents.
• Temperature control.
• Electrchemistry.
• Handling of pieces.
• Automatic.
• Study of a system with different technologies.
• Goods and people security.
• Maintenance of an automated system.

Technical specifications

A) Operative part:

It is composed of a mobile frame, including:

• Chemical oil cleaning station.
• Rinsing station.
• Acid dipping station.
• Acid zinc plating station.
• Horizontal translation motor.
• Vertical translation motor.
• Jib crane.
• Retention tank.
• Filtering block.
• Electrical cabinet.
• Transparent safety guard of the working area.
• Ventilation hood
• The handling of the jib cranes in the 2 axes Y and Z (horizontal and vertical) is made with a speed of displacement of about 0,2 m/s.
• Temperature control of the chemical oil cleaning bath by waves-train and static relays.
• The feeding of the electrolytic zinc plating bath is made by a current generator of 0-10 A with controlled direct current.
• Supply of the current generator from the single phase network.
• Display of tension and current.

B) Operative part:

An electrical cabinet integrating:

A compact PLC with analogical inputs/outputs and TOR, PID regulation, 2 interfaces of communication.
A interactive exploitation dialog terminal with 2 display lines. 20 characters. communication with the PLC on the serial line, UNI-TELWAY protocol, 12 keys function keyboard.

10 service keys and 12 numerical keys.
Programming made on several application pages and alarms pages.
The power supply and people protection devices : differential circuit-breaker, contactors. fuses, transformer.
Current generator for the electrolytic zinc plating bath.

Technical Functions of Surface Treatment Plant : 

The PLC assures the following functions:

• Management of 5 positions on the Y axis in order to ensure the operations of chemical oil cleaning, rinsing, acid dipping, rinsing and zinc coating.
• Management of 2 positions on axis (high and low).
• Temperature control of the chemical oil cleaning bath.
• Manual run.

Protection Of People And Environment :

• Aspiration of steams above all the tanks.
• No waste to the sewage, the wasted baths will be reconditioned in delivery cans of and sent to approved centres for the treatment.
• The sounding environment is distinctly lower to 70db.
• People security by the transparent surrounding wall locked wit a key.
• Auto-control of the door sensor by a security box.

Essential requirements

• Electric power supply : 3 x 380V + N + E. 16A.
• Sanitary water supply.
• Outside joining for draining of the noxiousness steams by 3m flexible hose.
• Inside Diameter 150 mm.

Dimensions and weight

• Length 2,4m width 0,69 m.
• Height without the hood 1,7 m.
• Height with the hood 2,25 m.
• Weight 326 kg.
• Resonant level < 70 dB(A).