Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Occupations | Controls gas, oil, coal, electric-arc, or electric induction furnace to melt metal prior to casting: Weighs out specified amounts of metal ingots and scrap metal, and charges metal into furnace by hand, using hoist, or by directing crane operator to charge furnace. Loads molten metal into furnace, using transfer ladle. Turns valves to regulate injection of fuel and air into furnace, or moves controls to regulate flow of electricity and water coolant through electrodes to heat furnace to specified temperature. Observes color of metal and instruments, such as voltmeter, ammeter, wattmeter, and pyrometer, and adjusts controls to maintain specified temperature. Sprinkles fluxing agent over surface of molten metal to bring impurities to surface, forming layer of slag. Skims off slag, using strainer. Removes crucible containing molten metal from furnace, using hoist, moves levers to tilt crucible or open crucible door, or breaks clay plug to pour metal into ladle for transportation to molds. Removes test sample of molten metal from crucible, using hand ladle, and pours it into mold. Records data from each melt on form. Positions new electrodes over worn electrodes in electric-arc furnace, using overhead crane, and screws electrodes together, using chain wrench. May transport crucible or ladle to pouring station and pour metal into molds. May be designated according to type of furnace operated as Electric-Arc-Furnace Operator (foundry; smelt. & refin.; steel & rel.); Furnace Operator, Oil Or Gas (foundry); Induction-Furnace Operator (foundry); Tilting-Furnace Operator, Oil Or Gas (foundry). (references) |
| Controls furnace to refine or melt nonferrous ore or metal to specifications: Sets furnace controls to regulate flow of air, gas, oil, or current to heat metal to specified temperature. Observes color, fluidity of molten bath, and appearance of metal on bar, to estimate temperature, or measures temperature, using pyrometer. Inserts end of green pole into furnace to prevent oxidation of copper. Adds reagents to remove impurities, according to type of metal processed. Skims slag with rabble, dross hoe, or ladle. Opens blowers to force air through tuyeres to agitate bath, and stirs bath with wooden pole or iron rod to release oxygen. Seals taphole with fire clay and firebrick. Turns handwheel or moves lever to tilt or turn furnace and taps metal into pots for removal to other furnaces [TAPPER (nonfer. metal; smelt. & refin.)]. Lifts and transfers ladles of melt, using hoist. Sprays dore or silver crystals with water, and dries them with vacuum drier prior to melting. Samples materials and sends samples to laboratory for analysis [RAW SAMPLER (smelt. & refin.)]. Sprays molds with bone ash to prevent metal from adhering to mold. May replace defective parts or clean equipment. May operate puncher to clear tuyere holes and allow air to pass through molten copper in converters to burn off impurities. May be designated according to type of furnace operated or product processed. (references) | |
| Tends automatic or semiautomatic lehrs that anneal flat glass or glassware to relieve internal stresses or to fuse painted designs on glassware: Observes gauges and turns controls to start exhaust fans, to ignite burners, and to regulate lehr temperatures, speed of lehr conveyors, and draft rates. Observes annealed glass for splits, cracks, breaks, and color that indicate improper lehr settings or for fusing of paint to glass. Loads or unloads glass entering or leaving lehr by hoisting flat glass with vacuum-cupped crane or by manually placing glassware on and removing from lehr conveyor. Packs annealed glass by placing flat glass in crates, using vacuum-cupped crane, or inserting glassware in cartons. Maintains record of glass annealed and packed. May adjust height of lehr entranceway curtain to accommodate containers of specific height. May tend hot- or cold-end spray equipment used to coat glassware with surface hardener. May change conveyor gears to alter speed of conveyor and replace defective burners, using handtools. (references) | |
| Controls operation of burners to maintain temperature in furnaces of petroleum-processing units according to specifications: Observes temperature, pressure, and flow gauges to verify operating conditions of units, and records data. Starts furnace and turns valves and switches to increase or decrease flow of fuel oil or gas to burner and still to regulate temperature according to processing schedule. Throws switches to place burner on automatic control. Examines furnace to detect overheating of walls and tubes, and leakage of still bottoms or oil tubes. Observes flame distribution and combustion conditions in furnace, color of burner flame, and gas issuing from stack, and moves air damper control to correct combustion conditions and stop flame impingements. Reports irregularities in operation to REFINERY OPERATOR (petrol. refin.). May remove and clean burners, using handtools, brusher, solvent, or steam. May change recording charts [CHART CHANGER (clerical)]. (references) | |
| Operates furnace to remove moisture, arsenic, or sulfur from ore: Charges top hearth of roaster with ore, regulating rate of charge by means of chute door. Determines speed with which roaster is being charged by weighing sample of charge ore obtained over measured interval of time. Starts rabbles (automatic rakes) that scrape hearth beds continually and move ore from one hearth to next lower one. Regulates draft and temperature of roaster by adjusting dampers and gas pressure. Replaces rabble arms by detaching arm from shaft with bar and removing it with hoist. Replaces defective rabble teeth. Directs workers in removing incrustations from hearth beds. Removes samples of roasted ore for laboratory analysis. May clean arms and rabbles with scrapers and iron bars. May determine oxide content of dried ore by titrating specified amount of flakes and calculating percentage. May replace defective parts and clean equipment. (references) | |
| Controls continuous-process furnace and related equipment to decompose salt cake, forming hydrogen chloride: Starts salt conveyors or shovels salt cake into furnace; turns valves to fill furnace reaction pot with sulfuric acid from supply tank; and sets burners, dampers, and vents to fire furnace to specified temperature and effect liberation of hydrogen chloride. Computes salt and acid requirements, using instrument readings and formulas, and sets feed scales and timers for continuous operation or manually regulates feed and temperature controls to maintain production in conformity with plant standards. Removes scale from furnace walls and agitates salt cake to maintain efficient production, using scrapers and rake. Starts or regulates speed of salt-removal device to prepare furnace for new charge. Maintains log of shift production, gauge readings, and equipment failures. (references) | |
| Operates furnace to heat aluminum slabs and fabricated forms to specified temperature for rolling or processing: Sets furnace controls to regulate temperatures and heating time. Starts conveyors and opens furnace doors to admit slabs, plate, sheet, and coil, or signals OVERHEAD CRANE OPERATOR (any industry) 921.663-010 to uncover soaking pits and lower ingots into them. Observes pyrometer and adjusts rheostat controls to maintain temperature between specified limits. Measures temperature of product to determine necessity for adjusting furnace temperature or timing cycle, using thermal instruments and charts. Removes material from furnace, using crane, or signals OVERHEAD CRANE OPERATOR (any industry) to transfer it to next station. Records time and production data. (references) | |
| Controls oil, gas, or electrical furnace to heat stock, such as billets, bars, plates and rods, preparatory to forging, following work order specifications: Reads dials and gauges, and turns knobs to regulate flow of fuel or electric current to verify and maintain specified temperature within furnace. Positions stock in furnace, using tongs or chain hoist. Observes color of metal or reads pyrometer to determine when stock reaches forging temperature. Pulls stock from furnace and delivers it to forging press or hammer, using tongs or chain hoist. Usually works as member of hammer, press, or upsetter crew. May place heated workpiece on conveyor for transporting to work area. May turn knobs to synchronize speed of feed and takeoff conveyors of automatic furnace. (references) | |
| Controls one or more furnaces or kilns and auxiliary drying equipment to dry coal or ore before or after washing, milling, or pelletizing: Fires furnace or kiln, observes gauges, and adjusts controls to maintain specified temperature. Starts conveyor that feeds materials into drying equipment. Observes operation to detect plugging of equipment, and dislodges material, using crowbar. Observes color of materials to determine moisture content, and adjusts temperature or drying time. Cleans and repairs equipment. May shovel in additives. May weigh and compare samples. May keep production records. (references) | |
| Controls continuous-feed gas, oil, or electric ovens to harden coated electric welding rods: Turns controls to light burners, open steam valves, and start blowers and conveyor lines. Dumps ink into pot and turns positioning screws on ink rolls to mark rods. Observes gauges and adjusts controls to maintain specified conveyor speed and heat and humidity in each baking zone. Observes coated welding rod to detect tool wear or coating flaws and reports findings to supervisor. (references) | |
Source: compiled by the editor from various references; see credits. | |
Crosswords: FURNACE OPERATOR |
| Specialty definitions using "FURNACE OPERATOR": fire regulator, FURNACE HELPER ♦ TEMPERATURE REGULATOR, PYROMETER. (references) |
| Thumbnail | Description & Credit |  | Negroes speed war work for Tennessee Valley Authority. Alonzo Bankston is a furnace operator in the TVA plant producing carbide for use of plants manufacturing synthetic rubber. Credit: Library of Congress. |
Source: pictures compiled by the editor from various references; see picture credits. | |||
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "a-a-c-e-e-f-n-o-o-p-r-r-r-t-u" | |
-5 letters: perforator, procreator, procurator. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)46 55 52 4E 41 43 45 4F 50 45 52 41 54 4F 52 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01000110 01010101 01010010 01001110 01000001 01000011 01000101 00100000 01001111 01010000 01000101 01010010 01000001 01010100 01001111 01010010 |
HTML Code (1990) (references)F U R N A C E   O P E R A T O R |
ISO 10646 (1991-1993) (references)0046 0055 0052 004E 0041 0043 0045 004F 0050 0045 0052 0041 0054 004F 0052 |
Encryption (beginner's substitution cypher): (references)4055524835373924950395235544952 |
| 1. Crosswords 2. Images: Photo Album 3. Anagrams 4. Orthography | 5. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
