- المجال: 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
