Metallurgy Of Cast Iron

Confined expansion decreasing shrinkage and contrac- <
tion ...............................•............... 394 ;
Views of appliances used to test expansion and contraction........................................398-402, 424 • f
The practicability of utilizing expansion tests of iron to define its grade.................................... 427
•'•*r
Fire Bricks-Composition of and different kinds used................ 44 , ,
Composition which stands heat and friction best....... 44
Fluxes and Their Use-Amount required in fluxing furnaces..................46, 53
The object of fluxing................................. 59
Elements essential in and the different kinds used...... 59
Effects of silica in..................................... 60
Physical character of some grades of.................. 61
Object of roasting..................................... 62
Chemical character of.........................,....... 63
Variation in the grain of pig iron by variation in use of.. 64
Formulas— f^
Best adapted for computing comparative strength of F
standard test bars................................474-477 ;
Lack and need of perfect formulas............476, 477, 530
Fuels-Charcoal as used in making iron...................... 161 *
Charcoal, its freedom from sulphur................... 162 |
Fusibility of Iron, Comparative Tests of— f
Effects of adding phosphorus to molten iron as defined 8"
by immersion test................................230, 232 I
Comparative fusing tests of small sand and chilled roll
castings ....................................312, 332, 335
Immersion tests of small sand and chill rolls......314, 415
Importance of knowing comparative fusibility of different irons........................................... ^23
Conditions necessary to test the........................ 324
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