FIELD: thermometry.
SUBSTANCE: invention relates to thermometry and can be used for measuring temperature in furnaces for annealing in local heating part of article before welding. Disclosed is a composition for measuring temperature in furnaces for annealing in local heating part of the article before welding (chromium-molybdenum steels and chromium-molybdenum-vanadium steels). Composition for signalling given temperature interval contains magnesium oxide, copper nitrate and zinc, wt%: Magnesium oxide 15-25; Copper nitrate 20-35; Zinc Rest.
EFFECT: technical result is increase of accuracy of determining temperature.
1 cl, 1 tbl
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Authors
Dates
2016-06-20—Published
2015-04-20—Filed