DOT Code: 504.687-010

Industry: jewelry-silver.
Alternate Titles: heat treater

Heat treats jewelry fittings to soften fittings for further processing, using electric or gas furnace: Sets automatic controls to specified temperature. Fills steel tray with fittings and places fittings in oven, using tongs. Removes tray after specified time and immerses fittings in water. May clean oxide and scale from fittings by immersing fittings in chemical and water baths. May heat treat ingots, using Bunsen burner or torch, and immerse ingots in alcohol to restore ingot malleability. May open and close gas valves, ignite and extinguish gas flames, and set time clock alarm for heating and cooling periods.

GOE: 06.04.10 STRENGTH: L GED: R2 M1 L1 SVP: 2 DLU: 77