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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 makes sand cores used in molds to form holes or hollows in metal castings. Respnsibilities include: * Cleans core box with blast of compressed air. * Dusts parting sand over inside of core box to facilitate removal of finished core. * Partially fills core box with sand by pulling cord that releases sand from overhead chute or by using hands or shovel. * Compacts sand in core box, using hands, hand rammer, and air rammer. * Bends reinforcing wires by hand, and inserts them in sand. * Fills core box and rams sand in tightly. * Inverts core box onto metal plate, and lifts box from sand core. * Patches cracked or chipped places on core and smooths core surfaces, using spoon and trowel. * May bake cores to harden them. * May assemble cores. * May work at bench making small cores and be designated Coremaker, Bench; or make large cores on floor of foundry and be designated Coremaker, Floor.
Industry:Professional careers
A professional who performs duties as described under apprentice master title.
Industry:Professional careers
A professional who casts metal molds to form jewelry articles. Respnsibilities include: * Forms plaster mold of model. * Builds sand mold in flask, using plaster mold as pattern. * Places flask in furnace or heats flask with blowtorch to dry and harden sand mold. * Removes plaster mold from flask. * Melts metal in crucible or furnace, and pours molten metal into channel of sand mold to cast metal mold. * Opens flask and removes metal mold when metal has hardened, using pliers or tongs.
Industry:Professional careers
A professional who casts metal molds to form jewelry articles. Respnsibilities include: * Forms plaster mold of model. * Builds sand mold in flask, using plaster mold as pattern. * Places flask in furnace or heats flask with blowtorch to dry and harden sand mold. * Removes plaster mold from flask. * Melts metal in crucible or furnace, and pours molten metal into channel of sand mold to cast metal mold. * Opens flask and removes metal mold when metal has hardened, using pliers or tongs.
Industry:Professional careers
A professional who forms plaster molds, used to make metal castings, using molder's handtools, patterns, and flasks. Respnsibilities include: * Mixes plaster powder and water according to specified formula. * Places cope and drag on molding table. * Places drag half of pattern in drag. * Pours liquid plaster into drag, removes excess plaster, using straightedge, and allows mold to harden. * Assembles cope half of pattern to drag half of pattern in mold. * Places cope on drag and makes depressions in plaster around drag pattern to ensure accurate joining of mold halves for casting. * Brushes parting agent on surfaces of mold, pattern, and flask, and pours liquid plaster into cope. * Separates cope and drag after specified time and removes pattern. * Repairs cracks and broken edges of mold, using molder's handtools, such as spoon, trowel, and slick. * May cut gates and risers in mold after mold is baked. * May position cores in drag and assemble mold. * May pour molten metal into molds, using hand ladle. * Makes plaster cores by pouring plaster in core box and clamping box shut. * May cast plaster molds from rubber molds, spraying parting agent on mold face and pouring plaster into drag and cope.
Industry:Professional careers
A professional who forms molds used in casting copper. Respnsibilities include: * Assembles metal casting frame on flat car, using wrench. * Seals frame with fire clay, using trowel, and sprays interior of frame and core with bone ash to prevent adherence of molten metal to core. * Pushes car under pouring spout of ladle. * Moves lever to tilt ladle of molten copper and fill frame to indicated level. * Pulls lever to lower core, attached to hydraulic press ram, to imbed core in molten copper. * Turns valve to circulate water through core to solidify copper. * Withdraws core when mold cools, dismantles frame, and removes mold.
Industry:Professional careers
A professional who operates molding machine to form sand molds used in production of metal castings. Respnsibilities include: * Assembles flask, pattern, and follow board on molding table of machine. * Sifts sand over pattern, using riddle, and fills flask with sand by opening hopper or using shovel. * Packs sand around pattern contours, using ramming tool or pneumatic hammer. * Starts machine that compacts sand in flask to form mold. * Cuts pouring spout and vents in mold, using sprue cutter and wire. * Lifts cope half of flask off drag half and removes pattern. * Cleans cavity of mold, using airhose. * Positions cores in drag, and assembles cope and drag. * May set cores in mold cavity. * May install pattern on bed of machine, and adjust pressure of ram. * May be designated by machine operated as Machine Molder, Roll-Over; Machine Molder, Squeeze; or product molded as Molder, Fitting.
Industry:Professional careers
A professional who operates molding machine to form sand molds used in production of metal castings. Respnsibilities include: * Assembles flask, pattern, and follow board on molding table of machine. * Sifts sand over pattern, using riddle, and fills flask with sand by opening hopper or using shovel. * Packs sand around pattern contours, using ramming tool or pneumatic hammer. * Starts machine that compacts sand in flask to form mold. * Cuts pouring spout and vents in mold, using sprue cutter and wire. * Lifts cope half of flask off drag half and removes pattern. * Cleans cavity of mold, using airhose. * Positions cores in drag, and assembles cope and drag. * May set cores in mold cavity. * May install pattern on bed of machine, and adjust pressure of ram. * May be designated by machine operated as Machine Molder, Roll-Over; Machine Molder, Squeeze; or product molded as Molder, Fitting.
Industry:Professional careers
A professional who controls sand-slinging machine to pack sand in mold flask. Respnsibilities include: * Engages controls to move machine along tracks and to position impeller head over flask. * Starts machine, and moves controls to guide impeller head back and forth to direct flow of sand into flask. * Cleans and oils machine. * May replace worn parts in impeller head, using handtools.
Industry:Professional careers
A professional who positions cores in drag of sand mold. * Examines mold and cores for defects, such as cracks and broken surfaces, before mold is closed. * Verifies spacing between mold and cores, using gauges. * May assist in closing mold. * May operate hoist to move and position large cores. * May assemble groups of cores in fixture of automatic core-setting machine.
Industry:Professional careers
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