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US 11,541,453 B2Granted
Molding tool for molten metal or glass
AssigneeSgl Carbon SE
InventorsOswin Öttinger, Dominik Rivola, Sebastian Schulze
Life of this patent
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Abstract
A molding tool made of carbon or graphite, namely a casting mold or a casting core for the processing of molten metal or to a molding tool for the processing of molten glass, such as for example a blow mold and a method for producing the molding tool.
Claims5
A method for producing a moulding die for molten metal or glass, comprising the following steps:
- a) providing a powdered composition, which consists of carbon particles in a proportion of at least 50 wt. %,
- b) providing a liquid binder,
- c) planarly depositing a layer of the powdered composition provided in a), and locally depositing droplets of the liquid binder provided in b) to said layer, and repeating step c) a discretionary number of times, wherein the step of locally depositing the droplets in subsequent repetitions of said step c) is adjusted according to a desired shape of the moulding die to be produced,
- d) curing or drying the binder and obtaining the moulding die;
- wherein the carbon particles consist of acetylene coke.
2 more elements
Dependencies are inferred from the claim text.