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and wall of building. ) drills holes in wall and affixes oil inlet and outlet pipes from storage tank through holes to outside of building. ) removes ashpit and grate bars from furnace and installs burner in opening. ) seals space around burner with plaster. ) connects pipe to storage tank and burner...
and sets furnace temperature for computer control according to work order. ) presses buttons and turns valves to start vacuum pump of terminating chambers and set rate for back-filling chambers with argon gas, preparatory to sputtering gold contacts on carbonized ceramic cores. ) sets thermostats to...
work area; observes water levels in scrubber, venturi-duct pan, and cooling-tower basin; and reads flowmeter and pressure gauges on phosphorus pump, fans, and blower to verify process conditions. ) records or calls readings to operator. ) observes flow of cooling water over top and outer walls of furnace...
, and ignites gas burner with torch. ) adjusts heat controls to obtain specified temperature for reclaiming metal from scruff. ) breaks up lumps in scruff, using rake and hoe. ) turns valves to tap furnace and allow reclaimed metal to flow into iron kettle or melting pot. ) heats kettle, and skims foreign...
to hammer anvil, using tongs or hoist. ) opens and closes electrically controlled furnace doors to assist steel press crew. ) positions and turns workpieces and work aids during forging by heavy forger. ) removes scale from anvil, using broom and airhose. ) cleans work area with broom and shovel and...
. ) determines when molten metal is ready to pour by observing color through glass-covered opening, or by measuring temperature of molten metal with pyrometer. ) moves controls that cause lift to raise mold from lower air lock to vacuum chamber. ) pulls lever that causes furnace to invert and pour molten...