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ENAMELING DEFECTS DUE TO THE CAST IRON 1
Author(s) -
Malinovszky A.
Publication year - 1925
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1925.tb16340.x
Subject(s) - enamel paint , crazing , feldspar , metallurgy , cast iron , materials science , mineralogy , composite material , quartz , geology , polymer
Troubles in manufacturing sanitary enameled ware are pinholing, breaking out, blistering, crazing, chipping, lifting, black specks, etc., due to the iron, the chemicals, methods of applying the slush or enamel, furnace temperatures, inexperience, lack of cleanliness, differences of the coefficients between iron and enamel and fitting of ground coat to the enamel, etc. Feldspar is most liable to cause trouble by variations of its constituents. Feldspar containing above 69% of silica should be looked upon with suspicion. Troubles arising from the cast iron are discussed. Results of chemical analyses and microscopic examinations and microphotos before and after enameling are shown.