The Care Of Carburizing Compounds

: The Working Of Steel

Of all the opportunities for practicing economy in the heat-treatment

department, there is none that offers greater possibilities for

profitable returns than the systematic cleaning, blending and reworking

of artificial carburizers, or compounds.

The question of whether or not it is practical to take up the work

depends upon the nature of the output. If the sole product of the

hardening department consist
of a 1.10 carbon case or harder,

requiring a strong highly energized material of deep penetrative

power such as that used in the carburizing of ball races, hub-bearings

and the like, it would be best to dispose of the used material to

some concern whose product requires a case with from 0.70 to 0.90

carbon, but where there is a large variety of work the compound

may be so handled that there will be practically no waste.

This is accomplished with one of the most widely known artificial

carburizers by giving all the compound in the plant three distinct

classifications: New, being direct from the maker; half and

half, being one part of new and one part first run; and 2 to 1,

which consists of two parts of old and one part new.