- المجال: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who coordinates processes, supervises workers, and sets up machines used to manufacture storage-battery grids and plates. Respnsibilities include:
* Coordinates hand and machine operations, such as lead melting, casting and trimming, paste mixing, grid pasting and drying, and inspection.
* Sets up machines, such as trimming press and pasting machines.
* Adjusts stops, guides, blades and rollers, and changes molds.
* Inspects in-process or finished parts, such as grids, connectors, and wet and dry plates to determine conformance to specifications.
* Observes gauges, thermometers, temperature controls, and operation of machines and equipment to detect malfunctions and directs or makes changes to correct defects.
* Reports mechanical breakdowns to maintenance department.
* Performs other duties as described under supervisor master title.
* May be designated according to operation supervised as Supervisor, Grid-Casting-And-Pasting; Supervisor, Plate Pasting.
Industry:Professional careers
A professional who controls kettles at top of shot tower to melt scrap shot, pure lead, and lead alloys and drops mixture through perforated pans down tower to form shot for shotgun shells. Respnsibilities include:
* Computes in pigs and pounds, amounts of pure lead and lead alloys, containing various percentages of antimony, required to produce mixture of specified antimony content.
* Notifies material handler type and quantity of pigs to load onto conveyor.
* Starts conveyor and turns wheel or moves lever to regulate feed rate of lead pigs and scrap shot into kettle.
* Observes pyrometers and turns knobs to adjust kettle temperature, according to specifications.
* Positions specified shot pan, spreader pan, and cup in fixture beneath kettle spout.
* Turns crank to regulate molten metal flow from kettle into cup.
* Observes falling pellets to detect defects, such as irregular shot size, clogged holes in shot pan, and impurities in lead.
* Adjusts flow of lead to increase or decrease size of pellets.
* Adjusts kettle temperature to burn out impurities.
* Removes pans and dips pans in kettle to melt clogged lead from perforations prior to reuse.
* Shakes shot samples through gauging sieve and estimates production of specified shot size from percentage of pellets passing through sieve.
Industry:Professional careers
A professional who operates one or more centrifugal-casting machines to cast metal parts of costume jewelry. Respnsibilities include:
* Dusts inside of rubber mold with chalkdust compound to facilitate flow of metal during casting and prevent mold from burning.
* Fits halves of molds together and places them on mold setting.
* Places disks under mold to adjust working pressure.
* Positions metal-pressure plate on mold to level mold on machine.
* Sets dial for specified pressure and speed of rotation, closes lid, and starts machine.
* Pours molten metal through funnel into machine, using ladle.
* Stops machine and removes mold.
* Separates halves of mold to remove casting, using pliers.
* May cast wax models of jewelry.
Industry:Professional careers
A professional who casts male dies (punches) used in stamping aircraft parts from sheet metal. Respnsibilities include:
* Operates hoist to position female dies on foundry floor.
* Clamps metal and plywood strips around die to form mold.
* Shapes mold to specified contours with sand, using trowel and related tools.
* Tilts melting pot or uses ladle to pour molten alloy (aluminum, lead, zinc) into sand mold.
* Places metal jig with anchor bolts attached, or similar insert setup, over mold and into molten metal in prescribed manner to attach anchor bolts to punch.
* May smooth dies.
* May preheat dies, using blowtorch or other equipment.
* May apply parting compound to dies.
* May operate furnaces and ovens.
Industry:Professional careers
A professional who operates machine to cast slugs for subsequent swaging into small arms ammunition bullets. Respnsibilities include:
* Slides lead pigs and scrap into melting kettle, turns valves to control fuel-air mixture to furnace and coolant water flow to molds, and starts pump that forces molten metal through pipes to casting wheels adjacent to kettle.
* Starts machine and observes water on heated molds to determine when water sizzles, indicating specified temperature of molds for production casting.
* Examines slugs for such defects as fins, out of miter (halves not matching), partial formation, and pits.
* Adjusts machine controls and replaces worn and warped molds to correct malformation of slugs, using handtools.
* Examines molds, using straightedge and light, to detect incomplete closure and warpage, and straightens warped molds, using hand-powered press.
Industry:Professional careers
A professional who operates machine to cast slugs for subsequent swaging into small arms ammunition bullets. Respnsibilities include:
* Slides lead pigs and scrap into melting kettle, turns valves to control fuel-air mixture to furnace and coolant water flow to molds, and starts pump that forces molten metal through pipes to casting wheels adjacent to kettle.
* Starts machine and observes water on heated molds to determine when water sizzles, indicating specified temperature of molds for production casting.
* Examines slugs for such defects as fins, out of miter (halves not matching), partial formation, and pits.
* Adjusts machine controls and replaces worn and warped molds to correct malformation of slugs, using handtools.
* Examines molds, using straightedge and light, to detect incomplete closure and warpage, and straightens warped molds, using hand-powered press.
Industry:Professional careers
A professional who operates fluoroscope to inspect metal castings for hidden defects, such as excessive porosity and subsurface cracks. Respnsibilities include:
* Aligns castings on table, lowers fluorescent screen over castings, and starts machine.
* Turns dials to adjust fluorescent penetration depth according to density of metal.
* Examines reflections of castings on illuminated lid to locate defects.
* Realigns castings for cross-sectional views, adjusting dials to new focus points.
* Rejects castings not conforming to plant specifications, and places castings aside for salvaging.
* Notifies superior of findings.
* Records number of castings inspected and rejected, using automatic counter.
* Submits minometer pencil worn on person to supervisory personnel for reading to ascertain amount of stray radiation escaping from fluoroscope.
* May inspect casting for defects, using magnetic testing machine.
Industry:Professional careers
A professional who casts pewter alloy to form parts for goblets, candlesticks, and other pewterware. Respnsibilities include:
* Places pewter ingots into cauldron and turns controls to heat cauldron to specified temperature.
* Stirs molten alloy and skims off impurities, using skimmer.
* Sands inside of mold parts to remove glaze residue, using emery cloth; applies new glaze, using paint brush; and sets mold parts aside to dry.
* Assembles mold, wraps mold in heat-resistant cloth, and ladles molten alloy into mold opening.
* Manually rotates mold to distribute alloy in mold and prevent formation of air pockets.
* Strikes mold to separate dried casting from mold, using knocker.
* Repeats casting process until specified number of parts are cast.
* Trims gates and sharp joints from cast parts, using bandsaw.
* Carries trimmed castings to storage area.
* Periodically weighs and mixes alloy ingredients according to formulas and knowledge of ingredient chemical qualities, heats mixture to specified temperature, and fills molds to form ingots from which parts are cast.
* May cast items, using other equipment, such as temporary molds or casting machines.
Industry:Professional careers
A professional who operates one or more automatic single- or multiple-mold casting machines to mold storage battery parts, such as grids, connectors, and posts. Respnsibilities include:
* Loads lead bars or shovels pig lead and scrap lead into melting kettle.
* Ignites burners and sets controls to melt lead and heat molds to specified temperature.
* Smokes or coats mold with compound to prevent sticking, using acetylene torch or spray gun.
* Aligns and adjusts mold halves to ensure casting of grids according to specified thickness, using handtools.
* Turns valves to control flow of lead to ladles and water to mold-cooling sprays.
* Starts machine that automatically pours specified amount of lead from ladle into mold.
* Inspects parts ejected from molds to detect defects or discolorations, and measures and weighs grids, using fixed gauges and scale, to ensure conformance to thickness and weight specifications.
* Adjusts temperatures of lead and molds and flow of lead or water to correct defects.
* Removes lead adhering to mold, using brush or scraper.
* Skims dross from molten lead, using hand ladle.
* May operate single-mold machine equipped with press that automatically trims grids.
* May repair pipe connections and stitch or replace conveyor belt, using handtools.
* May change or adjust molds.
Industry:Professional careers
A professional who operates one or more automatic single- or multiple-mold casting machines to mold storage battery parts, such as grids, connectors, and posts. Respnsibilities include:
* Loads lead bars or shovels pig lead and scrap lead into melting kettle.
* Ignites burners and sets controls to melt lead and heat molds to specified temperature.
* Smokes or coats mold with compound to prevent sticking, using acetylene torch or spray gun.
* Aligns and adjusts mold halves to ensure casting of grids according to specified thickness, using handtools.
* Turns valves to control flow of lead to ladles and water to mold-cooling sprays.
* Starts machine that automatically pours specified amount of lead from ladle into mold.
* Inspects parts ejected from molds to detect defects or discolorations, and measures and weighs grids, using fixed gauges and scale, to ensure conformance to thickness and weight specifications.
* Adjusts temperatures of lead and molds and flow of lead or water to correct defects.
* Removes lead adhering to mold, using brush or scraper.
* Skims dross from molten lead, using hand ladle.
* May operate single-mold machine equipped with press that automatically trims grids.
* May repair pipe connections and stitch or replace conveyor belt, using handtools.
* May change or adjust molds.
Industry:Professional careers
