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).
Trial use of Corronil for exhaust manifold tubes and silencers on the Phantom model.
| Identifier | ExFiles\Box 46\1\ Scan142 | |
| Date | 11th May 1927 | |
| His RECEIVED MAY 12 1927 44135 RHO. Hs.{Lord Ernest Hives - Chair} ---- PHANTOM. ------- BY6/H.{Arthur M. Hanbury - Head Complaints} 11.5.27. I have instructed up exhaust manifold tubes in Corronil, also lagging for the silencers in Corronil. It may be that this will prove to be somewhat easier to handle than Calorizing mild steel, and on the other hand, we have not so far succeeded in making a really sound brazed joint in Staybrite or Stainless, so far as the down take pipes are concerned. If Corronil in sheet proves to have the same stiffness and resistance as Staybrite, and is less expensive, it will pay us to adopt it. The difference is in the neighbourhood of 5d. per pound in favour of Corronil. In connection with the down-take pipes, I am not by any means sure this will be successful, as the coefficient of expansion of Corronil is considerably higher than that of steel, and therefore expansion effects, from which we already suffer in steel, will probably be accentuated in Corronil. BY.{R.W. Bailey - Chief Engineer} By | ||