Hood Assembly for Controllably Cooling Extruded Section Members of Aluminium and Other Metal Materials at an Output of an Extruding Line Therefor.

Abstract

An improved hood assembly for controllably cooling extruded section members of aluminium and other metal materials at an output of an extruding line therefor, characterized in that said hood assembly comprises a plurality of air delivery spouts inclined according to angles varying from 20° to 60° with respect to a sliding longitudinal direction of said section member through said cooling line.

1 . An improved hood assembly for controllably cooling extruded section members of aluminium and other metal materials at an output of an extruding line therefor, characterized in that said hood assembly comprises a plurality of air delivery spouts inclined according to angles varying from 20° to 60° with respect to the sliding longitudinal direction of said section member through said cooling line. 
     
     
         2 . An improved hood assembly, according to  claim 1 , characterized in that said hood assembly comprises a plurality of cooling air ducts for sucking air from an outside environment and conveying the sucked air to said hood assembly. 
     
     
         3 . An improved hood assembly, according to  claim 1 , characterized in that said ducts are inclined with an angle of about 45° with respect to said section member feeding direction. 
     
     
         4 . An improved hood assembly, according to  claim 1 , characterized in that said inclination is so arranged that cooling air is projected on said section member with a broadened impact surface and a correspondingly increased section member cooling capability. 
     
     
         5 . An improved hood assembly, according to  claim 1 , characterized in that said improved hood assembly provides a theoretical cooling capability enhanced by 40% thereby providing an improved power saving with a reduction of the hood assembly length and reducing the ventilating power of fan assemblies. 
     
     
         6 . An improved hood assembly, according to  claim 1 , characterized in that said hood assembly comprises a plurality of adjustment gates for adjusting the air flow by a linear type of opening and closing adjustment. 
     
     
         7 . An improved hood assembly, according to  claim 1 , characterized in that said hood comprises water cooling means including a plurality of water nozzles arranged with an inclination of 20/60°, preferably 45°, and delivering cooling water to provide an enhanced and homogeneous cooling down of said section members being extruded. 
     
     
         8 . An improved hood assembly, according to  claim 1 , characterized in that if a water cooling is performed therein, the hood assembly fan, using two fan dedicated manifolds, projects cooling air on said section members to introduce into said hood assembly water used for cooling the extruded section members.