Casting Chamber

Abstract

A casting chamber ( 1 ) of a die casting machine, includes an inlet ( 2 ) and a casting plunger which is arranged so as to be movable along the longitudinal axis of the casting chamber ( 1 ). The casting chamber ( 1 ) is composed of an inner tube ( 3 ) which is coated with a thermally insulating layer and is shrunk into a steel jacket ( 5 ).

1 . A casting chamber of a die casting machine, comprising a fill opening for metal to be cast and a plunger situated to be displaceable using a driver and controller along a longitudinal axis of the casting chamber, wherein the casting chamber has an inner pipe made of steel, wherein a thermal insulation layer is applied on an external surface of the inner pipe, the thermal insulation layer extending from a face of the casting chamber to a casting mold and the fill opening for molten metal, wherein the inner pipe is enclosed by a steel jacket. 
   
   
       2 . The casting chamber according to  claim 1 , wherein the inner pipe and the steel jacket comprise different metallic materials. 
   
   
       3 . The casting chamber according to  claim 1  wherein the insulation layer is a ceramic material. 
   
   
       4 . The casting chamber according to  claim 3 , wherein a wear protection element is introduced into the inner pipe opposite to the fill opening. 
   
   
       5 . A method for producing a casting chamber according to  claim 1 , comprising the following method steps:
 coating the external surface of the inner pipe made of steel with a thermal insulation layer that extends from a face of the casting chamber to the casting mold and the fill opening for molten metal, and   subsequent shrinking of the coated inner pipe in the steel jacket.   
   
   
       6 . The method according to  claim 5 , wherein before the coating of the inner pipe, a wear protection element is arranged in a side of the inner pipe opposite the fill opening. 
   
   
       7 . The casting member according to  claim 3 , wherein the ceramic material comprises ZrO 2 .