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Full text of "Metallurgy Of Cast Iron"

6i6
INDEX.
Shrinkage vs. Contraction—                                              PAGE.
Difference in their action.............................. 386
Elements affecting their  application  in   foundry........
........................................   .W4-395* 4*1-4^5
Shrinkage of Iron-Principles  involved  in  causing.....................387, 392
The constant relation existing between expansion and...  31X7 Not increased by hot poured metal, as generally thought 391 The factors causing hard iron to possess greater shrinkage" than   soft   iron.........................391, 394, 395
That period of solidification  which  exacts the greatest
attention and feeding to supply the.................. 393
Metal poured into  iron  moulds  showing  1<-'SS  shrinkage
than  into  sand...................................... 394
The part in which shrinkage will occur, it any exists.404, 485 The necessity for engineers, designers ami draftsmen t<»
understand the principle's of.............,...........  404
Illustration of castings showing typical position of shrink
holes......................................405, 4()(>, 407
Tests to ascertain the percentage of shrinkage occurring
in hard and soft grades of iron...................409-413
The   amount   gray   and   chilled   iron   shrink,-,   per   100
pounds...........................,.,,...........411-413
Silica-Effects of temperatures on, and its refractory nature,26,   c>o Percentage  in  ores  and   fuel   and  amount  absorbed  in
making iron........................................    jn
Amount taken up by iron and carried off in slag......i»h, f>o
Silicon—
How obtained in iron......................., , .,. .j(», ^3 ;t.j
Temperatures   in   furnace   regulating   jirivrnt.•!$»<•   ot,   m
iron........................................... jo, 53^4
Diffusion of, in pig iron and ca>iinR-   ........,,,.,.,.   134
Impracticability of using physical tests in «i«'fwiiinr, ,144, ju'i Percentage of, in different brands of iron. ,,,,,, 145-147, 2?o High temperatures and silicious ores rt'tjuirct! to make
.......................................----147, f 61al  tests  and