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U.S. Department of Labor
Industry: Government; Labor
Number of terms: 77176
Number of blossaries: 0
Company Profile:
A professional who operates oxygen furnace and auxiliary equipment from pulpit to produce specified types of steel. Respnsibilities include: * Moves controls to position furnace for charging operation. * Observes temperature gauges and recorders, and moves controls to position oxygen lance and regulate flow of oxygen through lance onto charge. * Sets weight indicator gauge according to specified amount of additives to be added to charge. * Starts automatic weighing machine that releases additives, such as fluorspar, lime, and alloys, from bins onto conveyor leading to chute over furnace. * Moves lever to release additives from chute into furnace. * Moves controls to adjust position of oxygen lance in furnace, regulate oxygen flow, or adjust hood draft when sparking or slopping of charge occurs or furnace overheats. * Moves controls to position transfer car, carrying ladle and slag pots, under taphole and to tilt furnace for tapping operation. * Records operation data.
Industry:Professional careers
A professional who operates battery of gas-fired stoves to supply heated airblast to blast furnace. Respnsibilities include: * Turns gas valves and ignites burners in combustion chamber of stove, using torch. * Observes temperature records, and moves controls to close gas and chimney valves when heat inside stove reaches specified temperature. * Opens valves on stove allowing air from blowing engine to pass through hot-blast stove into furnace. * Adjusts stove controls to maintain specified temperature of airblast. * Alternates operation among stoves in battery to provide continuous blast of hot air. * Cleans carbon and dirt from flues to prevent internal explosions. * Inspects cooling and washing equipment for leaks. * Assists furnace crew in casting hot metal and flushing slag from furnace.
Industry:Professional careers
A professional who operates battery of gas-fired stoves to supply heated airblast to blast furnace. Respnsibilities include: * Turns gas valves and ignites burners in combustion chamber of stove, using torch. * Observes temperature records, and moves controls to close gas and chimney valves when heat inside stove reaches specified temperature. * Opens valves on stove allowing air from blowing engine to pass through hot-blast stove into furnace. * Adjusts stove controls to maintain specified temperature of airblast. * Alternates operation among stoves in battery to provide continuous blast of hot air. * Cleans carbon and dirt from flues to prevent internal explosions. * Inspects cooling and washing equipment for leaks. * Assists furnace crew in casting hot metal and flushing slag from furnace.
Industry:Professional careers
A professional who controls scruff and burn-off furnaces and auxiliary equipment to reclaim tin or terne from coating pots, tinplate, and used electrolytic anodes. Respnsibilities include: * Washes scruff with hose to remove flux. * Starts crushing machine, and shovels scruff into machine to reduce scruff to uniform size. * Charges scruff into furnace, and ignites gas burner with torch. * Adjusts heat controls to obtain specified temperature for reclaiming metal from scruff. * Breaks up lumps in scruff, using rake and hoe. * Turns valves to tap furnace and allow reclaimed metal to flow into iron kettle or melting pot. * Heats kettle, and skims foreign metal from top, using ladle. * Adds specified amounts of tin or lead in producing terne. * Pours metal into pig or electrolytic anode molds. * Weighs and records amount of recovered metal. * Marks weight on pigs, and stores pigs in warehouse.
Industry:Professional careers
A professional who tests electrical circuitry and measures temperature and depth level of materials in aluminum reduction pots. Respnsibilities include: * Places contact rods of voltmeter against anode of reduction pot and against lining (cathode) of next pot on line to obtain voltage reading of pot circuit. * Records meter reading, repeats test on next pot, and deducts reading from previous reading to determine any power loss. * Repeats test on each succeeding pot to obtain and record power loss at each point along potline. * Removes concrete sections of floor, using overhead hoist, to expose electrical circuits. * Places prongs of millivoltmeter on ground and electrical connections to measure amount of positive and negative charges entering pot. * Inspects electrical connections, firebrick lining, and wiring to detect damaged, worn, or broken parts, and notifies pot-room supervisor of discrepancies. * Breaks hole in pot crust with crowbar, and inserts thermocouple to measure temperature of contents. * Measures depth of contents, using measuring rod, and records temperature and depth on control form. * Dips ladle into pot to remove sample of aluminum for laboratory analysis, and pours sample into mold. * Records test readings, voltage loss, temperatures, and depth levels on master control form, and submits it to pot-room supervisor.
Industry:Professional careers
A professional who weighs alloy, shot, or strips of metal to obtain specified amounts required by furnace operator, using platform scale. Respnsibilities include: * Cuts bar stock to specified lengths, using power saw. * Stamps code on bar to indicate alloy and heat number. * Places pelletized metal in barrels. * Records weight and kind of metals issued in logbook. * Delivers specified metal to furnace operator, using handtruck or industrial truck. * May verify incoming metal shipments against invoice, store metal, and maintain inventory of metal on hand.
Industry:Professional careers
A professional who controls cupola furnace to melt and refine iron, scrap metal, and other additives to produce gray iron castings. Respnsibilities include: * Closes and props door in bottom of cupola. * Shovels sand into cupola and tamps sand to form wedge-shaped layer on cupola bottom sloping toward taphole. * Kindles fire, using gas torch, to ignite coke bed in cupola, and starts and sets speed of blowers that supply air to cupola. * Signals cupola charger to begin charging metal, coke, and limestone into cupola. * Reads gauges indicating temperature of molten metal in cupola and amount of air flowing into and out of cupola, and adjusts controls accordingly. * Taps molten metal from cupola. * Estimates, from color of slag draining from surface of molten metal, physical properties of metal being melted. * Pulls prop from bottom doors of cupola, when shutting down furnace, to allow residual materials to drop out. * May charge layer of excelsior, rags, and wood over sand bed to protect cupola from initial charge of coke and to ignite fuel.
Industry:Professional careers
A professional who tends furnace that remelts nonferrous alloyed metals used in diecasting process. Respnsibilities include: * Shovels specified proportions of scrap metal and ingots into furnace. * Sprinkles fluxing compound on molten metal to bring impurities to surface. * Skims slag from surface of molten metal, using hand strainer. * May transfer molten metal from furnace to bull ladle, using hand ladle. * May convey molten metal in bull ladle along overhead monorail, and pour metal into retainer of diecasting machine. * May pour molten metal into sand molds, using power hoist. * May clean furnaces and equipment.
Industry:Professional careers
A professional who tests temperature of molten metal for conformance to pouring specifications, using optical or thermocouple pyrometers. Respnsibilities include: * Advises cupola tender or furnace operator when temperature reading varies from specifications. * Records temperature reading on standard form.
Industry:Professional careers
A professional who tests temperature of molten metal for conformance to pouring specifications, using optical or thermocouple pyrometers. Respnsibilities include: * Advises cupola tender or furnace operator when temperature reading varies from specifications. * Records temperature reading on standard form.
Industry:Professional careers