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Dimensional change in mould space on setting of phosphate bonded investment
Author(s) -
Stevens L.,
Okamoto A.,
Jörgensen K. D.
Publication year - 1985
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.1985.tb02509.x
Subject(s) - thermal expansion , shrinkage , investment (military) , casting , distortion (music) , investment casting , space (punctuation) , materials science , phosphate , composite material , metallurgy , chemistry , mold , computer science , amplifier , optoelectronics , organic chemistry , cmos , politics , political science , law , operating system
A bstract — The effect of setting expansion and of temperature rise during setting of phosphate bonded investment on selected dimensions of an MOD casting mould space was studied. Excessive mould expansion and distortion was demonstrated. It was concluded that investments having zero setting expansion and sufficient thermal expansion to compensate for casting shrinkage should be used with the die‐investing technique. However, such investments are not at present available for all alloys.