Ferramentas e equipamentos para reparos de pintura

501-36-28 Paint - General Information 501-36-28 DESCRIPTION AND OPERATION Tools and Equipment for Paint Repairs General work equipment In the repair paint shop there is a range of painting tools which make the work of the painter easier and improve the quality of the repair paintwork. Among these are small tools which are used for the following work: ‡ Measuring beakers to measure and mix various paint materials. ‡ Measuring rods with which the required combination amounts of paint and primer filler are gauged and mixed. ‡ Viscosity measuring beaker with a calibrated opening of 4mm, used to set the correct paint viscosity. ‡ Paint filter/paint sieve for filtering foreign bodies out of mixed paint or primer. Care must be taken that the correct filter is used for each paint. ‡ Color sample plates onto which the mixed paint is applied, and the shade is then compared to that of the vehicle. Other aids which should help the painter to find the correct shade are color sample cards and color panels, which are offered by many paint manufacturers. ‡ Dust bonding cloths which are impregnated with a tacky resin and which pick up dust particles particularly well. A surface to be painted must be cleaned with a dust binding cloth immediately before paint is applied. ‡ Compressed air guns are used to remove sanding residues and to dry sanded surfaces. Filler and spray guns NOTE: Regular maintenance, cleaning after use and careful handling of all individual parts of the spray gun are essential for a high-quality paint finish. The spray gun is the most important implement in the paint shop. Application of paint using the spray gun can produce a layer with absolutely constant thickness and a smooth paint surface. Principle of operation TO BE UPDATED LATER Item Description 1 Air supply 2 Paint supply 3 Nozzle needle Because of the construction design and with the aid of compressed air, a spray-ready paint mixture is dragged out of the container to the nozzle by the venturi effect, and is applied to the surface being worked. When the trigger of the spray gun is pressed to the first pressure point, only the compressed air passage opens. If the trigger is pressed further, the nozzle needle displaces and the air stream drags paint with it at high speed. This produces a spray mist consisting of micro-droplets of paint.