Method for Producing High Temperature-Resistant Objects with Improved Thermomechanical Properties

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This patent describes a method for producing high temperature-resistant objects with improved thermomechanical properties. The process involves creating a temporary form (core) from salt and/or sugar using additive manufacturing (like 3D printing), coating it with high temperature-resistant materials using thermal spray techniques, and then dissolving and removing the temporary core (using water), leaving behind the final high temperature-resistant object. This enables precise, complex geometries and results in objects with enhanced thermal shock resistance and dimensional accuracy.

Use CasesContent extracted from patent full text and abstract with AI.

• Production of crucibles, pouring spouts, and other components in metallurgy that need to withstand high temperatures.
• Manufacturing of ceramic or metal-ceramic filters for filtration of molten metals in foundries.
• Creation of heat shields for the energy industry (e.g., for thermal protection in reactors or turbines).
• Forming molds and complex geometries for the glass industry.
• Manufacturing catalyst carriers for the chemical industry.
• Producing components used for mixing or homogenizing molten metals.
• Making complex high temperature parts used in automotive or aerospace industries.

BenefitsContent extracted from patent full text and abstract with AI.

• Enables the production of high temperature-resistant components with complex shapes and high geometric accuracy that are difficult or impossible using traditional ceramic or metallurgical processes.
• Improves thermomechanical and thermal shock resistance of the resulting objects due to the lamellar coating structure.
• Reduces the number of processing steps and associated costs by directly forming near-net-shape parts and avoiding shrinkage issues seen in traditional sintering or casting methods.
• Allows rapid and flexible prototyping or small batch manufacturing using additive techniques.
• Ecologically and economically favorable, as the temporary core (salt or sugar) is removed using water without burning, and can be recovered and reused.
• Permits local reinforcement of components by controlling coating thickness in targeted areas.

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Patent Abstract

The invention relates to a method for producing high temperature-resistant objects, having the following steps: a) producing a temporary molded body from salt and/or sugar using generative manufacturing processes, b) applying a layer of high temperature-resistant materials onto the temporary molded body using thermal coating methods, and c) removing the temporary molded body, wherein the coating of high temperature-resistant materials is applied onto the temporary molded body such that the materials form the high temperature-resistant object after the temporary molded body is removed in step c).