Method of extruding elements, especially made of metal, and a system for extruding elements, especially made of metal

Abstract

A method of extruding elements, especially made of metal, and a system for extruding elements, especially made of metal, are employed for production of elements by means of extrusion. The material is deflected from the infeed wheel tangentially or at an angle within 90° and is caused to flow locally within the area of the die, by the mandrel's rotary action. This method is executed in a system where in the gap's output area there is a wedge to deflect the direction of exit of the material fed by the rotating infeed wheel, and in the space between the friction block and the deflection wedge there is a mandrel caused to cyclically move bidirectionally at frequency of (0.1-10) Hz, whose face contacts the material in the area of transfer into the die.

1 . A method of extruding elements, especially made of metal, by transferring input material in a gap between an infeed wheel and a friction block and extruding it through a die, wherein in an output area the material is deflected from the infeed wheel tangentially or at an angle within 90° and is caused to flow locally within the die area, by the mandrel's rotary action. 
     
     
         2 . A system for extruding elements, especially made of metal, wherein an infeed wheel and a friction block, with a gap for transferring the material between the infeed wheel and the friction block, the gap ending with a shaped die, and in the gap's output area there is a wedge to deflect the direction of exit of the material fed by the rotating infeed wheel and in the space between the friction block and the deflection wedge there is a mandrel caused to cyclically move bidirectionally at frequency of (0.1-10) Hz, whose face contacts the material in the area of transfer into the die. 
     
     
         3 . (canceled) 
     
     
         4 . The system according to  claim 2 , wherein the mandrel is made up by the die. 
     
     
         5 . The system according to  claim 2 , wherein the mandrel is made up by a roller, whose face is situated in the area of the calibrating orifice of the die, with outflow axis deflected from the current the direction of movement of the material, generally perpendicularly. 
     
     
         6 . (canceled) 
     
     
         7 . The system according to  claim 2 , wherein the mandrel is made up by a two-diameter roller, and the face of the end of the roller with smaller diameter is situated in the area of the calibrating orifice of the die. 
     
     
         8 . The system according to  claim 2 , wherein the mandrel's face has shaped inlets and splines.