- 업종: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who operates rotary kiln in which cinnabar (mercuric sulfide ore) is volatilized to obtain free mercury. Respnsibilities include:
* Ignites oil burner and turns fuel and air pressure valves to heat kiln to specified temperature.
* Sets controls to regulate conveyor speed and rotation of kiln.
* Observes gauges and flow of ore into kiln and turns controls to maintain temperature and amount of ore in kiln.
* Lubricates and repairs kiln and equipment.
Industry:Professional careers
A professional who tends table-feeding equipment that regulates flow of finely ground iron ore, coke, and flue dust from storage bins onto sintering machine conveyors. Respnsibilities include:
* Starts table feeder and conveyor and adjusts rheostats to regulate speed of vibrating feeders.
* Moves controls to regulate opening of feed gate according to rate of flow of material onto conveyor.
* Observes equipment to detect malfunctions.
* Clears clogged chutes or feed gates, using bar and shovel.
* Fills sample box with material on conveyor, weighs sample, and records weight.
* Reads weightometer scale and records weights of material being processed.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in producing nonferrous metal castings by permanent-mold process. Respnsibilities include:
* Verifies setup of permanent-mold casting machines.
* Consults with lay-out inspector to check layout of castings and to determine cause of casting defects, such as core shift, mold shift, or pouring temperature.
* Initiates changes in mold and core alignment, pouring temperature, or timing cycle of casting machine to correct defects.
* Trains new workers in departmental or job procedures.
* May perform minor maintenance on permanent-mold casting machines.
* Performs other duties as described under supervisor master title.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in setting up and operating diecasting machines, applying knowledge of diecasting process and properties of molten metal. Respnsibilities include:
* Reads work orders to determine type of diecasting machines to be used.
* Initiates changes in timing of casting cycle, lubrication of dies, cooking of dies, or spacing between dies to correct defects in castings.
* Trains new workers in job duties.
* May supervise operation of melting furnaces and trim presses.
* May adjust thermostats to control temperatures of molten metal.
* May set up diecasting machines for workers.
* May be required to have experience with specific materials or type of machine.
* Performs duties as described under supervisor master title.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in inspecting and measuring metal castings. Respnsibilities include:
* Lays out reference points on sample castings and verifies dimensions against blueprints.
* Inspects rejected castings for defects, such as blowholes, cracks, and rough spots, to determine repairs required to salvage castings.
* May weigh and count castings, and record inspection data on standard form.
* Performs other duties as described under supervisor master title.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in tapping molten aluminum from reduction pots. Respnsibilities include:
* Inserts metal rod into pots and inspects coating deposited on rod to determine amount of metal to tap.
* Moves hand controls to raise and lower anode and to control voltage drop in pot during tapping.
* Records pot number on outside of crucible, using chalk.
* Performs other duties as described under supervisor master title.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in casting molten iron into pigs, and in cleaning blast furnace area, pig machine, and slag pits.
* Coordinates movement of materials into and out of department.
* Performs duties as described under supervisor master title.
Industry:Professional careers
A professional who supervises and coordinates activities of workers engaged in preparing equipment for tapping furnace, teeming (pouring) molten steel in molds, and stripping and weighing ingots.
* Performs duties as described under supervisor master title.
Industry:Professional careers
A professional who sets up diecasting machines that cast parts, such as automobile trim, carburetor housings, and motor parts from nonferrous metals, such as zinc, aluminum, or magnesium. Respnsibilities include:
* Lifts specified die sections into machine, using chain fall or hoist.
* Secures die sections in position and adjusts stroke of ram, using handtools.
* Connects water hoses to cooling system of die.
* Preheats die sections with torch or electric heater.
* Turns valves and sets dials to regulate flow of water circulating through die, timing cycle, and operating speed of machine, based on size and structure of part to be cast and type and temperature of metal being used.
* Starts machine to produce sample casting, and examines casting to verify setup.
* May clean diecasting machines, using high-pressure steam hose and detergent.
* May perform maintenance on machine or dies, such as replacing pipelines or hoses, lubricating machine, or replacing ejector pins in dies.
* May verify machine setups and adjust malfunctioning machines and be designated Die-Casting-Machine Maintainer.
* May dismantle dies for repair by die maker, stamping.
Industry:Professional careers
A professional who operates pig machine to pour molten iron into molds to cast pig iron. Respnsibilities include:
* Starts conveyor that positions mold under spout of pig-machine ladle.
* Moves controls to tilt ladle, allowing molten iron to flow into mold.
* Observes filling operation to detect sticking of molten iron to inside of molds, and signals lime mixer tender to spray additional lime on walls of molds.
* Performs maintenance, such as relining iron runners, repairing pig machine chains, and replacing broken molds, using handtools, bars, and jib crane.
Industry:Professional careers
