Set up, operate, or tend heating equipment, such as heat-treating furnaces, flame-hardening machines, induction machines, soaking pits, or vacuum equipment to temper, harden, anneal, or heat-treat metal or plastic objects.
1) Reduce heat when processing is complete in order to allow parts to cool in furnaces or machinery.
2) Remove parts from furnaces after specified times, and air dry or cool parts in water, oil brine, or other baths.
3) Set and adjust speeds of reels and conveyors for prescribed time cycles in order to pass parts through continuous furnaces.
4) Set up and operate or tend machines, such as furnaces, baths, flame-hardening machines, and electronic induction machines, that harden, anneal, and heat-treat metal.
5) Start conveyors and open furnace doors to load stock, or signal crane operators to uncover soaking pits and lower ingots into them.
6) Test parts for hardness, using hardness testing equipment, or by examining and feeling samples.
7) Attach wire or metal to winding mechanisms that will pull parts through furnaces.
8) Clean oxides and scales from parts or fittings, using steam sprays or chemical and water baths.
9) Cover parts with charcoal before inserting them in furnaces, in order to prevent discoloration caused by rapid heating.
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11) Insert vacuum tubes into bags, and seal bags around tubes, using tape.
12) Place parts on carts, connect vacuum lines to vacuum tubes, and smooth bags around parts to ensure vacuum.
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13) Adjust controls to maintain temperatures and heating times, using thermal instruments and charts, dials and gauges of furnaces, and color of stock in furnaces to make setting determinations.
14) Determine flame temperatures, current frequencies, heating cycles, and induction heating coils needed, based on degree of hardness required and properties of stock to be treated.
15) Determine types and temperatures of baths and quenching media needed to attain specified part hardness, toughness, and ductility, using heat-treating charts and knowledge of methods, equipment, and metals.
16) Examine parts to ensure metal shades and colors conform to specifications, utilizing knowledge of metal heat-treating.
17) Heat billets, bars, plates, rods, and other stock to specified temperatures preparatory to forging, rolling, or processing, using oil, gas, or electrical furnaces.
18) Load parts into containers and place containers on conveyors to be inserted into furnaces, or insert parts into furnaces.
19) Mount fixtures and industrial coils on machines, using hand tools.
20) Mount workpieces in fixtures, on arbors, or between centers of machines.
21) Move controls to light gas burners and to adjust gas and water flow and flame temperature.
22) Place completed workpieces on conveyors, using cold rods, tongs, or chain hoists, or signal crane operators to transport them to subsequent stations.
23) Position stock in furnaces, using tongs, chain hoists, or pry bars.
24) Read production schedules and work orders to determine processing sequences, furnace temperatures, and heat cycle requirements for objects to be heat-treated.
25) Position parts in plastic bags, and seal bags with irons.
26) Position plastic sheets and molds in plastic bags, heat material under lamps, and force confrontation of sheets to molds by vacuum pressure.
27) Record times that parts are removed from furnaces to document that objects have attained specified temperatures for specified times.
28) Remove parts from autoclaves, and cut away plastic bags.
29) Repair, replace, and maintain furnace equipment as needed, using hand tools.
30) Set up and operate die-quenching machines to prevent parts from warping.
31) Signal forklift operators to deposit or extract containers of parts into and from furnaces and quenching rinse tanks.
32) Stamp heat-treatment identification marks on parts, using hammers and punches.
33) Instruct new workers in machine operation.
Holland / RIASEC Career Code: NA SOC: 51-4191.00