Use of the nitriding process on H.R. Crown Valve Steel for inlet valves.
| Identifier | ExFiles\Box 154a\1\ scan0262 | |
| Date | 3rd June 1932 | |
| WOR {Arthur Wormald - General Works Manager} (crossed out) c. Rg. {Mr Rowledge} (crossed out) c. Hs. {Lord Ernest Hives - Chair} (crossed out) c. ROY {Mr H. Royce - Buyer} (crossed out) X1474. (handwritten) BY.1/G. 8.6.32. H.R. CROWN VALVE STEEL - ROY. {Mr H. Royce - Buyer} 7/MG. 3.6.32. ------------------------- I am definitely of the opinion that we can use all the valve steel up for inlet valves providing we treat the finished valve by the nitriding process, so that we obtain a hard skin on the spindle of the valve. We instructed this experimentally some time ago, but the matter seems to have been overlooked. [STAMP] RECEIVED 8 JUN 32 BY. {R.W. Bailey - Chief Engineer} By (handwritten signature) | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).