- 업종: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who assists pig-machine operator to cast pig iron. Respnsibilities include:
* Observes pouring operations and signals pig-machine operator to stop flow of metal from ladle when molds overflow or mechanical malfunction occurs.
* Knocks pieces of iron and slag from ladle lips, pouring spout, or iron runners, using pole.
* Cleans slag and iron from pouring equipment and pig machine, using bars and sledges.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who directs pouring of slag from ladle through spout into reverberatory furnace used for smelting. Respnsibilities include:
* Raises furnace door, using lever or air hoist.
* Guides overhead crane operator by signal horn and lights in positioning ladle over spout and pouring slag.
* Sprays water on inner walls of spout to remove encrusted slag, or pries slag loose with iron bar.
* Shovels slag into car or furnace.
* Patches cracks in spout with moist clay, smoothing surface with hand or shovel.
* Scatters slurry of silica and clay evenly over inner surface of spout to decrease slag-crust during pouring operation.
* May guide dinkey operator into position over furnace, using hand signals.
* May record amount of slag dumped into furnace on analysis sheet.
Industry:Professional careers
A professional who operates rotating casting wheel to pour molten nonferrous metal, such as copper, lead, or aluminum into molds to form ingots. Respnsibilities include:
* Moves control lever to rotate wheel and position mold under pouring spout of kettle or furnace.
* Pulls lever to remove stopper from bottom of kettle or to tilt ladle to allow metal to flow into mold.
* Rotates wheel to spot successive molds under spout.
* Observes process to ensure that castings are dumped and that molds are returned to starting position.
* May spray empty molds with coating to prevent metal from sticking to mold.
* May skim slag or dross from metal in furnace with rake or hoe.
* May divert stream of metal into bucket, using hose, to obtain samples for laboratory.
* May operate pump to force lead from kettle into mold.
* May skim impurities, using spatula or spoon, and solidify molten lead by regulating flow of water in water-cooled mold.
* May observe furnace gauge to verify that temperature of molten metal meets specifications.
* May change pouring spout, using chain hoist and handtools.
* May operate casting-wheel machine that advances molds automatically at predetermined rate.
Industry:Professional careers
A professional who operates rotating casting wheel to pour molten nonferrous metal, such as copper, lead, or aluminum into molds to form ingots. Respnsibilities include:
* Moves control lever to rotate wheel and position mold under pouring spout of kettle or furnace.
* Pulls lever to remove stopper from bottom of kettle or to tilt ladle to allow metal to flow into mold.
* Rotates wheel to spot successive molds under spout.
* Observes process to ensure that castings are dumped and that molds are returned to starting position.
* May spray empty molds with coating to prevent metal from sticking to mold.
* May skim slag or dross from metal in furnace with rake or hoe.
* May divert stream of metal into bucket, using hose, to obtain samples for laboratory.
* May operate pump to force lead from kettle into mold.
* May skim impurities, using spatula or spoon, and solidify molten lead by regulating flow of water in water-cooled mold.
* May observe furnace gauge to verify that temperature of molten metal meets specifications.
* May change pouring spout, using chain hoist and handtools.
* May operate casting-wheel machine that advances molds automatically at predetermined rate.
Industry:Professional careers
A professional who operates press that forms carbon paste into anodes used in metal-reduction pots. Respnsibilities include:
* Pushes panel buttons to activate hopper, chain conveyor, cooling chamber belt, and power rolls.
* Turns valve to regulate flow of water to carbon cooling chamber.
* Observes signal light on hopper which indicates hopper is filled and paste is discharged into mold.
* Starts mechanical vibrator to pack mix in mold.
* Moves levers to synchronize rotation of index table with dropping of ram to press mix into blocks.
* Adjusts ram stroke to press carbon block to specified size, using wrench.
* Stops press when warning light indicates malfunction or when mold is overheated.
* Removes rejects from conveyor, using pneumatic ram.
Industry:Professional careers
A professional who pours molten metal from ladle into molds to produce metal castings. Respnsibilities include:
* Tilts ladle or opens pouring spout by turning handwheel or moving levers to pour metal into sand molds.
* Skims slag off molten metal, using strainer device, or tilts ladle to dump out slag.
* May move ladle from cupola or furnace to work station, manually or using overhead monorail or chain fall.
* May be designated according to type of ladle used as Pourer, Buggy Ladle; Pourer, Bull Ladle; Pourer, Crane Ladle; Pourer, Crucible.
Industry:Professional careers
A professional who casts refined lead into molds moving along conveyor belt. Respnsibilities include:
* Connects pipelines from kettle to ladle, and preheats pipes, valves, and ladle with gas burner to prevent hardening of metal.
* Controls flow of metal into ladle, and pours lead into molds by tilting ladle.
* Skims oxide from surface of metal in molds.
Industry:Professional careers
A professional who removes, replaces, and adjusts nozzles and cylinders (sleeves) of diecasting machines. Respnsibilities include:
* Disconnects and removes gooseneck (spout) from gooseneck machine, using wrenches, chain falls, and hoist.
* Knocks nozzle loose with bar and hammer.
* Drives replacement nozzle into gooseneck.
* Reinstalls gooseneck in metal pot, aligning nozzle with gate according to scale measurements.
* Removes plunger from sleeve of cold-shot machine, using wrenches, and pushes defective sleeve from machine.
* Installs new sleeve by inserting holding pin, making screw adjustments, and taking scale measurements.
* Periodically inspects nozzle and sleeve adjustments along machine line.
* Assists other workers in adjusting, installing, and removing diecasting machine nozzles and cylinders.
* Keeps records of sleeve and nozzle adjustments and replacements.
* May replace movable gooseneck setup with new parts.
Industry:Professional careers
A professional who pours molten metal from ladle into molds to produce metal castings. Respnsibilities include:
* Tilts ladle or opens pouring spout by turning handwheel or moving levers to pour metal into sand molds.
* Skims slag off molten metal, using strainer device, or tilts ladle to dump out slag.
* May move ladle from cupola or furnace to work station, manually or using overhead monorail or chain fall.
* May be designated according to type of ladle used as Pourer, Buggy Ladle; Pourer, Bull Ladle; Pourer, Crane Ladle; Pourer, Crucible.
Industry:Professional careers
A professional who tends centrifugal casting machine that casts tubular metal products, such as pipes, brakedrums, or bushings. Respnsibilities include:
* Lays specified mold on spinning mechanism.
* Brushes dirt and metal fragments from inside of mold.
* Places and fastens cover on ends of mold.
* Preheats mold with torch.
* Starts machine and sprays insulation on inside surface of rotating mold.
* Pours molten metal into mold, using hand ladle.
* Allows mold to spin for specified time to solidify metal against mold walls.
* Unfastens mold cover and removes casting, using tongs or hydraulic ram.
* May set machine controls to rotate mold at specified speed.
Industry:Professional careers
