Painting facilities. Liquid facilities
Automatic painting facilities, consist primarily of the following process:
CHEMICAL PRETREATMENT
he purpose of pretreatment is the preparation of metal surfaces, which later will be painted, such preparation is
- Cleaning the parts are dirt, rolling oil, grease protection, distortion products, etc..
-Creating a layer of phosphate or conversion that says:
* Electrical insulation, ie, prevents the electrochemical corrosion of metal.
* chemical combination between the treatment and coating (in some cases).
* roughness on a microscopic scale, which improves the adhesion of coatings.
different methods that can be used in the pretreatment process are:
* Tunnels spray treatment. ( treatment for more )
* Lines immersion baths. ( Bath for more )
* Cabin spear.
* plaforización tanks.
Additionally, equipment may be used to improve the quality of water used in the process:
* demineralized or deionized water.
* osmosis water.
 
Finally, we incorporate the latest technologies to reduce the environmental impact of discharges.
* Debugging liquid and gaseous discharges.
* Flocculation of paint.
* Osmosis recovery of wash water.
* Ion Exchange.
 
Spray treatment tunnels
tunnel undergoes treatment parts through spray nozzles, a degreasing process and a subsequent conversion layer by chemicals, to improve corrosion resistance and paint adhesion.
In the case of complex parts, you can combine online spraying and dipping.
The pieces move along the process, using an overhead conveyor monorail or double rail (power and free).
 
Immersion bath Lines
In the bathroom lines are subjected to pieces by dipping them in vats, a degreasing process and a subsequent conversion layer by chemicals, to improve corrosion resistance and paint adhesion.
This process is normally used for quality requirements to reach every nook and hollow parts.
pieces and dip move along the process, using automatic cars scheduled to travel and lifting movements.
 
In either pre-treatment methods, as outlined above, and depending on material characteristics and needs of paint adhesion, the different processes to be applied are:
- Process least:.
* Degreasing - phosphating or nanotechnology.
* Washing with water from the network.
* Washing with demineralized water or osmosis (if mains water is of poor quality).
* Drying of moisture in an oven.
- Process medium-high:.
* Degreasing.
* Washing with water or demineralized water network.
* Phosphate or conversion (amorphous Phosphate - Conversion nanotechnology reduce environmental impact).
* Washing with water or demineralized water network.
* Passivation.
* Washing with demineralized water or osmosis (if mains water is of poor quality).
* Drying of moisture in an oven.
- Process high:.
* Predesengrase.
*
Degreasing.
* Washing with water from the network.
* Refining or washing with demineralized water.
* Phosphate or conversion (amorphous Phosphate - Conversion nanotechnology reduce environmental impact).
* Washing with demineralized water.
* Washing with demineralized water.
* Painted by cathodic electrodeposition (e-coat).
* Washing with ultrafiltrate (UFR-1).
* Washing with ultrafiltrate (UFR-2).
* Lattice electrodeposited paint oven.
Drying Ovens
The purpose of the stove, is the drying of the pieces from the chemical conversion pretreatment.
They are usually forced convection, but may be infrared.
Can work with any type of energy (gas, diesel, electricity, hot water, steam, thermofluid, etc .).
 
The purpose of paint booths, is to confine the paint mist produced in the application, while collecting the parts not deposited on, keeping the place in good conditions of hygiene and safety. Liquid paint booths can be of several types:
*
Closed heated paint booths (online or static).
* Paint Booths Deluge (online or static).
*
Paint Booths Dry Filter (online or static).
 
 
The object of the oven is the polymerization, crosslinking or curing of the paint applied, establishing the conditions of temperature and time required by the curve of the paint applied.
They are usually forced convection, but can be infrared, ultraviolet, etc.
Can work with any type of energy (gas, diesel, electricity, hot water, steam, thermofluid, etc .).
Depending on the painting process, the furnaces are named as follows:
* Horn of polymer powder coating.
* E-coat ovens lattice.
* Horn liquid paint curing.
 
 
Support
support means, the means used to transfer the pieces to be fast enough for production, between different stages of the process.
More support systems used in automatic installations are:
* Conveyors monorails
* Conveyors double rail encoded (Powe and Free)
* Bridges scheduled / Car ferry
 
 
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