- 업종: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tends one station on indexing-type centrifugal casting machine, performing any combination of following tasks involved in casting metal. Respnsibilities include:
* Removes dirt and metal fragments from mold, using brush, water, or airhose.
* Fastens cover on end of mold.
* Starts mold rotating, and sprays insulation on inside surface of mold.
* Pours specified amount of metal into mold, using hand or crane ladle.
* Moves levers on tilting furnace to control flow of metal into pouring ladle.
* Removes cover on end of mold, and pulls casting from mold, using tongs.
* May be designated according to task performed as Dumper, Mold Cleaner; Puller; Sprayer.
Industry:Professional careers
A professional who tends diecasting machine that casts parts, such as automobile trim, carburetor housings, and motor parts from nonferrous metals, such as zinc, aluminum, or magnesium. Respnsibilities include:
* Turns valves to regulate flow of water circulating through dies.
* Blows metal fragments from die surfaces, using airhose, and brushes lubricant over die cavity and plunger.
* Ladles molten metal into chamber by hand when using cold chamber machine.
* Pushes button to close and lock dies and activate plunger that forces molten metal into die cavities.
* Removes casting after dies open automatically, using tongs or pliers.
* Inspects casting for defects, such as cracks or bubbles.
* May measure casting, using fixed gauges.
* May dip castings in water to cool.
* May regulate speed of machine.
Industry:Professional careers
A professional who tends mixing machine that mixes lime and water, and sprays mixture on interior of molds to prevent cast iron from sticking to molds. Respnsibilities include:
* Shovels lime into mixing machine, starts machine, and opens valve to allow water to enter machine to obtain mixture of specified consistency.
* Cleans molds, using airhose.
* Starts pump of spray gun, and sprays molds.
* Observes coating on molds, and adjusts spray gun and consistency of mixture to obtain specified coating.
* Sprays water on molds containing molten iron to cool metal, using hose.
* Removes stuck pigs from molds, using bar.
Industry:Professional careers
A professional who tends machine that extracts core pipe from interior of tubular castings. Respnsibilities include:
* Strikes end of core pipe with sledge to loosen baked sand between casting and core pipe.
* Inserts end of core pipe through holding block and secures pipe between jaws set on dolly.
* Starts machine that pushes and pulls dolly along tracks, pulling out core pipe while casting strikes against holding block.
* Cleans casting, using airhose and wire brush.
Industry:Professional careers
A professional who inspects metal castings for dimensional accuracy and surface defects. Respnsibilities include:
* Measures dimensions of casting, using fixed gauges.
* Examines casting for defects, such as cracks and blowholes.
* Separates and marks defective castings according to salvage operation required.
* May chip surplus metal from casting, using hammer and chisel.
* May tap casting with hammer to determine from sound if casting has been heattreated or to detect defects, such as cracks or thin walls.
Industry:Professional careers
A professional who assists aluminum foundry workers by performing variety of manual tasks. Respnsibilities include:
* Skims dross from furnaces.
* Loads handtrucks with ingots or sorted scrap.
* May sort and weigh metal, charge furnaces, and transport metal.
* May mark heat number on billets.
* May operate tier-lift truck to transport materials.
Industry:Professional careers
A professional who assists casting operator in casting aluminum alloys into ingots. Respnsibilities include:
* Places distributing trough between furnace taphole and mold.
* Positions baffle plates, screens, and control pins in trough, using handtools.
* Takes sample of molten metal for subsequent analysis.
* Skims dross off molten aluminum in holding furnace, using drag rake.
* Inserts thermocouple into mold and records temperature of ingot.
* Examines ingot for cracks, using reflectoscope.
* Stencils identification numbers on ingots.
* Hooks cable to ingot for removal by overhead crane operator.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in crushing, grinding, and concentrating ore preparatory to further processing or shipment. Respnsibilities include:
* Observes meters, gauges, recording instruments, and operation of machines and equipment to detect malfunctions, faulty operation by worker, or need for repairs.
* Orders adjustments and repairs to restore machines and equipment to production specifications.
* Directs dismantling, and inspects parts to determine cause of malfunction or breakdown.
* Demonstrates and explains machine operation and processes to new workers.
* May determine time, duration, and sequence of utilizing ore from silos, and rates of extraction to attain blend of ore specified on work order.
* Performs duties as described under supervisor master title.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in transporting, crushing, and storing ore, skimmings, and other residue.
* Trains workers in operation of equipment.
* Performs duties as described under supervisor master title.
Industry:Professional careers
A professional who operates panelboard to control machinery and equipment, such as conveyor belts, vibrating feeders, rod and ball mills, centrifugal separators, distributors, magnetic separators, and pumps, to grind ore and scrap metal and to separate iron particles from gangue. Respnsibilities include:
* Sets and adjusts automatic controls on panel to regulate feed flow of conveyors, flow of lubricant to rod and ball mill bearings, and flow of water to mills and separators.
* Starts grinding and separating machinery and equipment.
* Observes lights, dials, and gauges, and turns levers or pushes buttons on panel to adjust operating conditions, such as temperature of mill bearings, amount of electric current flowing through mill drive motors, and rate of ore and scrap metal flowing from feeder conveyors.
* Records number of machinery breakdowns and repairs, number of rods and balls charged into mills, and amount of ore and scrap metal processed.
* May pass hand magnet over sludge to determine extent of separation of iron particles from gangue by magnetic separators.
Industry:Professional careers
