 | Franklin D. Jones - Machinery - 1928 - 1254 pages
...time in hours that the steel should be held at this temperature before being removed from the furnace. A normalizing treatment for all tool steels is recommended to obtain a uniform and refined grain structure. Normalizing Plain Carbon Tool Steel NORMAL PITCH. Normal circular pitch of a helical gear is the distance... | |
 | American Society for Testing Materials - Building materials - 1924 - 1192 pages
...recommended practice must be left to the judgment of the individual heat treater or metallurgist. 2. Normalizing. — A normalizing treatment for all tool...steel tool during heating and quenching for hardening. Orange. 1700 926.6 Salmon. 1600 Briqht Red! ru Cherry. » ^ |_I300 Medium £ Cherry. £ Dark I20°... | |
 | Fuel - 1926 - 772 pages
...Steel Sometimes plain carbon tool steels are given a normalizing treatment before hardening, in order to obtain a uniform and refined grain structure, which...operator to predict the behavior and performance of the tool steel during the hardening operation. Table III gives normalizing temperatures for plain carbon... | |
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... highest quality performance of tools for general purposes only. For specific applications where special structural requirements seem to be necessary, deviation from the recommended practice must be left to the judgment of the individual heat treater... 