DIE CLEANING SYSTEM FOR THE ALUMINIUM EXTRUSION INDUSTRY



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The system has been studied to eliminate the aluminium residue inside the extrusion die canals. The system is made according to the customers’ requirements with a certain number of process basins and various loading and discharging store positions.

The principle function is based on the chemical reaction between aluminium and NaOH (caustic soda) in water.


Operation cycle:

The dies, collected in special baskets, are placed, by an operator in a loading and unloading(take over) position in the inner of the plant. The system recognizes these baskets and puts them, thanks to a full automatic trolley, in the store positions or directly in the process basins if one of them has becoming free.

The operator decides how long the baskets have to remain in the basins. At the end of the cycle, the trolley automatically takes the treated basket out of the process basin and puts it in the rinsing basin.

After the rinsing cycle the trolley takes the basket out and put it in, or the take over position, or if this position is occupied, in one of the store positions. Once the take over position is free, the system automatically takes the treated basket out the store position and deposit it in the take over position. The operator now can take away the treated basket whenever he is able to and can replace it for a new basket with dies that need to be treated.

The control of the system is by means of a PLC which allows the operator to remain outside the plant while in function, avoiding to come in contact with the reaction. The process can be controlled in semi-automatic or in automatic mode. The system is projected with complete respect for environment protection and for the safety working regulations. To make this possible, a system is foreseen for the aspiration and washing of the vapour before to discharge it into the atmosphere.


AUTOMATIC DIE CLEANING SYSTEM CONFIGURATION (Click on the image to expand)



AUTOMATIC TROLLEY FOR THE MOVEMENTS OF THE DIE BASKETS THROUGH THE WHOLE SYSTEM IN COMPLETE AUTOMATIC MODE: