- 업종: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who forms sand molds to fabricate metal castings, using patterns or match plates, flasks, handtools and power tools, following instructions and applying knowledge of variables, such as metal characteristics, molding sand, pattern contours, and pouring procedures. Respnsibilities include:
* Places flask and drag onto molding board and positions pattern inside drag.
* Sprinkles or sprays parting agent onto pattern and flask, to facilitate removal of pattern from mold, and positions reinforcing wire in flask.
* Sifts sand over pattern, using riddle, and compacts sand around pattern contours.
* Shovels and packs sand into flask, using hand or pneumatic ramming tools.
* Inverts drag, positions cope half of pattern and flask onto drag, and repeats sand molding operation to imbed pattern into cope.
* Lifts cope from drag and removes pattern.
* Cuts runner and sprue hole into mold and repairs damaged impressions, using handtools, such as slick, trowel, spoon, and sprue cutter.
* Positions specified cores into drag and reassembles cope and drag.
* Moves and positions workpieces, such as flasks, patterns, and bottom boards, using overhead crane, or signals overhead crane operator to move and position workpieces.
* Pours molten metal into mold, manually or using crane ladle, or directs metal pourer to fill mold.
* May form and assemble slab cores around pattern to reinforce mold, using handtools and glue.
* May operate ovens or furnaces to melt, skim, and flux metal.
* May form molds at bench and be designated Molder, Bench or form molds on floor and be designated Molder, Floor.
Industry:Professional careers
A professional who performs duties as described under apprentice master title.
Industry:Professional careers
A professional who performs duties as described under apprentice master title.
Industry:Professional careers
A professional who makes molds, using sweep method which is adaptable only in cases where required casting is symmetrical. Respnsibilities include:
* Assembles drag, flask, bottom plate, and spindle (projects through center of flask).
* Shovel sand into flask, and compacts it by hand ramming.
* Attaches sweep (board with bottom edge cut to shape corresponding to casting surface) and rotates it about spindle, until mold impression (usually convex) is swept (scraped) to desired shape.
* Places cope flask on drag, and shovels and compacts sand over drag mold which serves as pattern for cope mold.
* Removes cope mold.
* Scrapes drag mold with smaller sweep to reduce size of mold.
* Smooths and shapes mold surface, using slick and trowel.
* Assembles mold sections for pouring.
* When making parts of large floor or pit mold, usually rectangular in shape, with sides parallel and same impressions running full length of part of mold, draws sweep back and forth along guides to scrape out desired impressions.
Industry:Professional careers
A professional who makes molds, using sweep method which is adaptable only in cases where required casting is symmetrical. Respnsibilities include:
* Assembles drag, flask, bottom plate, and spindle (projects through center of flask).
* Shovel sand into flask, and compacts it by hand ramming.
* Attaches sweep (board with bottom edge cut to shape corresponding to casting surface) and rotates it about spindle, until mold impression (usually convex) is swept (scraped) to desired shape.
* Places cope flask on drag, and shovels and compacts sand over drag mold which serves as pattern for cope mold.
* Removes cope mold.
* Scrapes drag mold with smaller sweep to reduce size of mold.
* Smooths and shapes mold surface, using slick and trowel.
* Assembles mold sections for pouring.
* When making parts of large floor or pit mold, usually rectangular in shape, with sides parallel and same impressions running full length of part of mold, draws sweep back and forth along guides to scrape out desired impressions.
Industry:Professional careers
A professional who sets up and adjusts molding and coremaking machines, such as roll-over, squeeze, coremaking, and shell molding. Respnsibilities include:
* Obtains specified pattern, moves pattern to work station manually or using hoist, and bolts it to bed of mold or core forming machine, using wrenches.
* Adjusts stops, height of squeeze or roll-over mechanism, and height of sand hopper according to size of pattern or core, using handtools.
* Adjusts timing cycle of machines to specified settings.
* Replaces worn parts, such as air lines, gaslines, gaskets, and core box vents, using handtools.
Industry:Professional careers
A professional who sets up and adjusts molding and coremaking machines, such as roll-over, squeeze, coremaking, and shell molding. Respnsibilities include:
* Obtains specified pattern, moves pattern to work station manually or using hoist, and bolts it to bed of mold or core forming machine, using wrenches.
* Adjusts stops, height of squeeze or roll-over mechanism, and height of sand hopper according to size of pattern or core, using handtools.
* Adjusts timing cycle of machines to specified settings.
* Replaces worn parts, such as air lines, gaslines, gaskets, and core box vents, using handtools.
Industry:Professional careers
A professional who performs duties as described under apprentice master title.
Industry:Professional careers
A professional who performs duties as described under apprentice master title.
Industry:Professional careers
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
