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).
Experiments carried out on the welding of sheet steel water jackets using different treatments and wire types.
| Identifier | ExFiles\Box 36\3\ scan 019 | |
| Date | 23th April 1926 | |
| To C. Hs.{Lord Ernest Hives - Chair} from RHC.{R. H. Coverley - Production Engineer} X3018 RHC{R. H. Coverley - Production Engineer}20/BE. 23.4.26. RE WELDING OF SHEET STEEL WATER JACKETS. We have carried out various experiments on welding sheet steel water jackets which have been treated by the Rustless Iron Co., and by cosletizing. Three types of wire made by the Alloy Welding Processes Ltd.(A.W.P.) were used viz: Swedish Iron wire and two special types referred to as "A" and "B". "A" type wire was plated with nickel and contained 0.16% of carbon and 0.36% of manganese and was quite satisfactory to use. "B" type wire contained a considerably higher percentage of carbon(viz: 0.27%) and 0.76% of manganese. This was not so satisfactory to use as type "A". Samples of type "A" and "B" wire were submitted for analysis and whilst they are not recommended for use the welding appears satisfactory. Sample.1. Jacket was treated by the Rustless Iron Co., and welded with A.W.P. Swedish Iron wire, no difficulty was experienced during the welding of this but a glass hard scale formed locally around the seams when flame was applied, which chips off. Sample.2. Jacket was treated as Sample.1. and welded with special A.W.P. wire types "A" and "B" (seams being stamped to correspond with type of wire used) which affected the jacket in a similar manner to previous sample. Samples 3 & 4. Jackets were treated by cosletizing(bright finish) and welded with A.W.P. Swedish Iron wire respectively. No difficulty was experienced during welding but oxidation took place around seams. Samples 5 & 6. These samples welded quite as well as the previous pieces. -contd- | ||