Show How to Solder Aluminum To solder aluminum first make a 8 soldering bit from a n piece of or ori i Inches round or square alum aluminum Next tin the parts to be soldered with witha a n composition of ot 81 per c cent nt tin Un 10 le leper per cent aluminum and 3 per cent cop cop- per A After fter the copper has fused fuse the aluminum should be he added little by little stirring the mixture thoroughly nil all the time The tin tit and a small portion of tallow w should be added Do Donot Donot Donot not overheat ovi the composition Popular tar lar Monthly |