Design and constnlction of(Z‐ M)Fuurnace to purify the rnaterials

Abstract

mis research has been included design, conStruction andlnanufacture thellllal ttrnaces of elect五cal resistance heaters for twospecimens(Al,A2)of(110*110*40 mm)dimensions,and the thell・lalresister of the wires that used for rnelting mate五als of thellllal degrees(550,700° C)Was(3.2Ω ,2.7mm),(1.7Ω ,3.2mm)for the twospecimens(Al)and( A2 )respeCtiVely, which used in systemmelting(Z―M)fOr mate五als pu五ication process.We observed duHngthe work that the properties efflciency of pu五flcation fumaces of Aland A2 at melting point(550C° ,700° C) the length of the melting(4.2mm,7mm)and Shttp thellllal gradatton of(5.7° C/mm),7.2°C/m),reSpectively.We found from the diagraln of thellllal distributionOf the Al the length ofthe zone melting at temperature(555° C)equalto(4.3mm),and the length of the zone melting at a temperature(548°C)Cqual tO(7mm),and thellllal gradation(5.7° C/mm),and fOr theAl specimen the zone melting attemperaturc(680° C)equal to(7mm),and the length ofthe(Z― M)at a temperature(651° C)equal to(12mm),and thellllal gradation was(7.2° C/mm).