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).
Casting temperatures and results for various components and dies.
| Identifier | ExFiles\Box 116\2\ scan0111 | |
| Date | 1st November 1938 | |
| COPY. -2- Rm{William Robotham - Chief Engineer}/CTF.3/JH.1.11.38. (c) Ring Bearing as above but tilted - 1 - Cast at 683° 2 - " 683° 3 - " 685° 4 } 5 } - Cast at 685° 6 } 7. - Cast at 660° as an experiment to determine the absolute minimum casting temperature. (d) Merlin Cam Bush - D7848/9 - these castings were made in this material - 1. - Cast at 685° - Casting Cracked. 2. - " 660° 3 - " 670° 11.50 a.m. (e) Standard Billet Die as used in production for AC7 material - 1 - Cast at 720°. 2 - " 715° 3 - " 710° 4 - " 700° 5 - " 690° 6 - " 680° 12.15 p.m. (i) Experimental die producing strip suitable for bending :- 1 - Cast at 710° 2 - " 700° 12.25 p.m. 3 - " 690° | ||