Method of increasing the length of life of heating elements at low temperatures
AssigneeSandvik AB
InventorMats Sundberg
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Abstract
A method of lengthening the useful life of heating elements that are essentially comprised of molybdenum silicide and molybdenum tungsten silicide and different alloys of these basic materials, when the elements are operated at a relatively low temperature, such as a temperature in the range of 400-800° C., The invention is characterised in that the atmosphere surrounding the elements as they operate is caused to have a water content that is less than about one percent by volume.
Claims4
A method of lengthening the useful life of heating elements that are essentially comprised of molybdenum silicide and molybdenum tungsten silicide and different alloys of these basic materials when the elements are operated at a relatively low temperature, such as a temperature in the range of 400-800° C., characterised in that the atmosphere surrounding the elements as they operate is caused to have a water content that is less than about one percent by volume.
2 A method according to claim 1, characterised in that the atmosphere consists of air that has a water content of less than about one percent by volume.
Dependencies are inferred from the claim text.