Page 354 - Mechanical Engineer's Data Handbook

342 MECHANICAL ENGINEER’S DATA HANDBOOK

Water, (confinued) neutral he. 208 specific heat capacity. I IO
steam, formula and molecular weight, 140 oxidizing flame, 208 surface emissivity, 137
surface emissivity, 137 oxyacetylene welding, 207 thermal conductivity, I32
thermal conductivity, 131 recommended usage, 214 velocity of sound in, 309
velocity of sound in, 309 bracket welds, 13 Wood alcohol,
viscosity, 156 butt welds, 13, 21 1-12 boiling point, 109
Water based fluids as cutting fluids, 195 factors of safety, 309 latent heat of evaporation, 108
Water uapour, thermal conductivity, 131 fillet welds, 13 Wood’s metal, 237
Watt governer, 75 stress allowable, 216 Work.
Wedge, friction forces, 84 symbols, 213 definition, 58-9
Weirs, liquid flow through, 153 tack welds. 21 I SI equivalents. 292-3
Welding, terminology. 21 5 Worm gears. 99
arc, throat size, 215 Wrought aluminium see Aluminium
edge preparation, 214 weld fatigue failure, 19-20
fillet welds, 21 1-12 weld group properties, 14-15 Xenon, density, 264
fusion joint processes, 21 1 weld stress concentration, 24
gas shielded, 213 Wheels, cast iron, factors of safety, Yield stress, steel, 287
recommended usage, 214 309 Young’s modulus,
resistance seam, 2 12-1 3 White heart cast iron (BS 309). properties, definition. 1
solidfliquid joint processes, 21 I 219 steel testing, 287
solid phase joint processes, 21 I Winches, 67
spot welding, 212 wood, Zinc.
gas, adhesives for, 255 applications, 234
carburizing flame, 208 as clutch and brake material, 86 corrosion resistance, 241
edge preparation, sped and metal densities, 263 density, 263
thickness, 207-8 friction coefficient with cast iron; steel, latent heat of fusion, 108
fillers and fluxes, 209 8% properties pure, 240
flame cutting, 210 properties and permitted stresses, specific heat capacity, I IO
methods, 208-9 250 thermal conductivity. I31