Quenching The Work





In some operations case-hardened work is quenched from the box by

dumping the whole contents into the quenching tank. It is common

practice to leave a sieve or wire basket to catch the work, allowing

the carburizing material to fall to the bottom of the tank where it

can be recovered later and used again as a part of a new mixture.

For best results, however, the steel is allowed to cool down slowly

in the box after which it is removed and hardened by heating and

quenching the same as carbon steel of the same grade. It has absorbed

sufficient carbon so that, in the outer portions at least, it is

a high-carbon steel.





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