Electrically decoupled high-temperature thermal insulation
AssigneeSgl Carbon SE
InventorsFrank Eiselt, Bojan Jokanovic
Life of this patent
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Abstract
An insulation element for the thermal insulation of an inductively heatable high-temperature treatment zone. A wall of the insulation element contains a flat material, the resistivity of which is ρF 10-5 to 10-1 Ωm and which encloses a hollow space extending through the insulation element and includes a discontinuity, in which the resistivity ρU is greater than ρF. The discontinuity extends from the external surface of the flat material into the flat material but does not interrupt the flat material over the entire cross section of the flat material.
Claims13
An insulation element for thermally insulating an inductively heatable high-temperature treatment zone,
- wherein a wall of the insulation element comprises a flat material having a specific electrical resistance ρF of 10−5 to 10−1 Ωm,
- wherein the flat material surrounds a cavity extending through the insulation element and includes at least one break,
- wherein the at least one break has a specific electrical resistance ρU≥100×ρF, and
- wherein each break extends from an outer surface of the flat material and into the flat material but does not create a break in the flat material across the entire flat material cross section.
A set of insulation element portions for forming an insulation element comprising the insulation element portions,
- wherein at least one of the insulation element portions comprises a flat material having a specific electrical resistance ρF of 10−5 to 10−1 Ωm,
- wherein the flat material comprises at least one break,
- wherein the at least one break has a specific electrical resistance ρU≥100×ρF, and
- wherein each break extends from an outer surface of the flat material and into the flat material but does not create a break in the flat material across the entire flat material cross section.
A method for producing a flat material that can be used to insulate an inductively heated high-temperature treatment zone, comprising:
- providing a flat material having a specific electrical resistance ρF in a range of 10−5 to 10−1 Ωm, and
- forming at least one break in the flat material by cutting from a main surface of the flat material into the flat material without cutting through the entire flat material;
- wherein the at least one break has a specific electrical resistance ρU≥100×ρF.
Dependencies are inferred from the claim text.