Method for the Production of a Composite Material or a Precursor Product for the Production of a Composite Material

Abstract

The invention relates to a method for the production of a starting product for the production of a composite material having a metallic matrix phase and a reinforcement phase, with the following steps: Providing an extruder device having a die ( 4 ), Feeding the metallic matrix phase in a first portion of the extruder device, Transport of the metallic matrix phase in the direction of the die ( 4 ), Feeding reinforcement particles forming the reinforcement phase in the region of a second portion of the extruder device, Producing a mixture formed from the reinforcement particles and the at least partially melted on metallic matrix phase and further transport of the mixture through the die ( 4 ).

1 . Method for the production of a composite material having a metallic matrix phase and a reinforcement phase or a precursor product for the production of a composite material with the following steps:
 Providing an extruder device with a die ( 4 ),   Feeding the metallic matrix phase in a first portion of the extruder device,   Transport of the metallic matrix phase in the direction of the die ( 4 ),   Feeding reinforcement particles forming the reinforcement phase in the region of a second portion of the extruder device,   Producing a mixture created from the reinforcement particles and the at least partially melted on metallic matrix phase and further transport of the mixture through the die ( 4 ), wherein the mixture is cooled to a temperature below the solidus temperature of the metallic matrix phase before or during passing through the die.   
   
   
       2 . Method according to  claim 1 , wherein the metallic matrix phase and/or the reinforcement particles are fed to the extruder device under an atmosphere of inert gas. 
   
   
       3 . Method according to  claim 1 , wherein the metallic matrix phase is fed in the form of solid metal particles. 
   
   
       4 . Method according to  claim 1 , wherein the metal particles are formed from magnesium, zinc or aluminum or an alloy predominantly contained in one of the preceding metals. 
   
   
       5 . Method according to  claim 1 , wherein the metal particles form a granulate with an average diameter in the range of 1 μm to 10 mm. 
   
   
       6 . Method according to  claim 1 , wherein the reinforcement particles are produced from a metallic and/or non-metallic, inorganic material. 
   
   
       7 . Method according to  claim 1 , wherein the reinforcement particles are present in the form of fibers and/or particles. 
   
   
       8 . Method according to  claim 1 , wherein the fibers have a thickness in the range of 3 to 20 μm. 
   
   
       9 . Method according to  claim 1 , wherein the fibers have a length in the range of 5 μm to 10 mm. 
   
   
       10 . Method according to  claim 1 , wherein the particles have an average diameter in the range of 10 nm to 100 μm. 
   
   
       11 . Method according to  claim 1 , wherein the metal particles are at least partially melted on in the second portion of the extruder device during the transport in the direction of the die ( 4 ). 
   
   
       12 . (canceled) 
   
   
       13 . Method according to  claim 1 , wherein the solidified mixture is broken up into a granulate. 
   
   
       14 . Method according to  claim 1 , wherein a contact time between the at least partially melted on metallic matrix phase and the reinforcement phase is less than 20 minutes, preferably less than 15 minutes. 
   
   
       15 . Method according to  claim 1 , wherein the extruder device has at least one, preferably two, worm shaft(s) for the transport. 
   
   
       16 . Method according to  claim 1 , wherein the extruder device has at least one mixing equipment. 
   
   
       17 . Use of a precursor product produced according to  claim 1  for the production of a molded part produced by a casting method.