Letter to a spring manufacturer detailing a steel oxidisation process for corrosion resistance.
| Identifier | ExFiles\Box 154\2\ scan0113 | |
| Date | 14th July 1938 | |
| -4- 14th. July, 1938. Messrs. Toledo Woodhead Springs Ltd., Sheffield, 1. facture of ordinary washing boilers. A general outline of the principle is that steel is oxidised in an atmosphere of steam at round about 700°C. It is held sufficiently long to produce a thin continuous coating. It is then transferred to another muffle, and held for a short time at 930°C to transform the mixed oxides formed by the steam into the stable magnetic oxide which is resistant to further corrosion attack. I appreciate that work will have to be done to arrive at the results I have pointed out, but nothing is achieved in this life without effort, but if intelligent effort is made, the result is always a nett gain in the product worked upon. Yours faithfully, FOR ROLLS-ROYCE LIMITED. CHIEF ENGINEER. (CHASSIS). | ||
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).