Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 337
1.5 per cent may be added to iron or steelwithout preventing welding, but more than that makes a brittlealloy. Manganese reduces both the sulphur and oxygen in the ironand adds greatly to its strength. Nick-rl steel may be welded andthe addition of nickel up to 5 per cent is safe, if the amount of… … WELDING 5 Copper. Copper is one of the elemental metals and is foundas an ore and in a pure state. The ore must be smelted and thecopper refined before it is ready for use in the arts like other metals.It is cast and sold in the form of ingots and should be at least 99.5per cent pure and entirely…
Electrical engineering
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