Metallurgy Of Cast Iron

KI'FIa 1' o|-' KM'ANSlo.N » >N SH 1< I N K A( IK, K'l't.'. 3^9
ranged that the power of expansion was not sufficient to extend the distance between them, whereas No. 10 had sand ends to compose the mould, which ;j;ave lull freedom for expansion, the. same its in all other tests displayed in Fi^'s. 74 and 75- The fact that hard
' EXPANSION SIDE. •4 1 CONTRACTION SIDE. 12*1 r, r, r , -..,1Tr,,,--j _______ .j „„„„„,, .„„-,.(,., ......... •„,,„-,, ..... rv- j ................. ,™,.,.| ______ ----- „.,., | ...... «..„ ....... .™».»
Test Xo. , i Sulplvur, u.n:;i I.MT c«'iit.
1 ' ..................... u t „_„„,. ..... ,,-._.„„ , ,„„_,„„ Sulphur, I^.^H) I«T cM-nt. 4 | Flrnt Ciwl
a I. _,.,._,„„,„,„ Sulphur, 0,<>2B ji<»r c*«nt.
Htilphur, U.U7fj p«»r crnt, , ( itMMmtt <'a«t
»), {u — - -•, SuJphur, o.iKK p«'r cent.
j« I ...... , ............... ., ..... ................................... ................. ""' 1 Sulphur, ».-ji;s p4>r<-i>nf. § ( <'««(
SulpJuir, O.ii'J.'i IMT ("«inf.
8 f ............... to ........................................ . ....... „.„ ..... ' "~ ....... ~ I. Sulphur, O.IWW 1»T <TMt, ( KnurtU Citut
2 1 i ? ? f ? ? i !iJt'ft<?M
1.17
M«;. 74. -ntvarw
F !-:lKii..\\'»i"N' AMI
^rad</s of iron expand more than soft ones, and the fart that retarding expansion j^ivt'S rise to a. ^»;reater contraction than where free expansion is permitted, arc important as suj^vstinx' for works making sueh spt4-cialticsas chilled rolls, ear-wheels, etc,, in which heavyn-ill>' the .lulls i<»i itttc side xvei rotated as d«.:st.:t ihed on pa^es ,u •„ ,i j and ;i,nds pe!' (on of iron, or a ratio of 7.7 iron to i coke, in onler to deliver the melted iron in the same condition as on an ordinary day. In other words, an additional fuel consumption <>!' a little over 3,h per cent, is needed under the above conditions...................... 3,658 units £