Die for producing a casting and method for making the die
OwnerGunter Hubnerinventor
Life of this patent
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Abstract
The invention concerns a die for producing a casting, particularly a component for a motor or other engine, from a reactive molten non-ferrous metal charge using a casting mould and a method for manufacturing the die. The die consists of a casting mould which has a front layer area which comes into contact with the reactive non-ferrous molten metal charge and a top layer area mechanically stabilising the front layer area, the front layer area consisting of a minimum of one rare earth oxide and a minimum of one additional metal oxide, the minimum of one additional metal oxide being selected from the group of oxides of the following metals: titanium and nickel.
Claims27
A die for producing a casting, particularly a component for a motor or other engine, from a reactive non-ferrous molten metal charge with a casting mould which has a front layer area which comes into contact with the reactive non-ferrous molten metal charge and a back-up layer area mechanically stabilising the front layer area, characterized in that the front layer area consists of a minimum of one rare earth oxide and a minimum of one additional metal oxide, the minimum of one additional metal oxide being selected from the group of oxides of the following metals:
- titanium and nickel.
A method for manufacturing a die for the production of a casting, particularly a motor or other engine component, from a reactive non-ferrous molten metal charge, which method includes the following steps:
- Preparation of a wax blank with an external shape which reproduces the casting to be made;
- Formation of a casting mould which has a front layer area which comes into contact with the reactive non-ferrous molten metal charge and a back-up layer area mechanically stabilising the front layer area, the wax blank being coated at least once with a slurry;
- Drying and curing the casting mould;
- Removal of the wax blank from the casting mould and firing of the casting mould;
- and
- Firing of the casting mould;
- the front layer area of the casting mould consisting of a minimum of one rare earth oxide and a minimum of one additional metal oxide, the minimum of one additional metal oxide being selected from the group of oxides of the following metals:
- titanium and nickel.
Dependencies are inferred from the claim text.