METHOD FOR PRODUCING CAST IRON SAMPLE OF DETERMINED CHEMICAL COMPOSITION FIRST FOR SPECTROMETRIC ANALYSIS

摘要

After melting in an electric oven the sample is cast into copper moulds under controlled conditions with the aid of a solidifying additive and (%): 0.02-0.06 Zn, 0.05-0.2 B and 0.02-0.6 Te. Cooled sample is heated to 400-600 deg.C for 1-1.5 hours.