- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who assists extruder operator in extruding thermoplastic materials to form tubes, rods, and film. Respnsibilities include:
* Tapes end of extruded article to reel spindle and starts machine that winds material onto revolving spindle.
* Measures extruded article with measuring wheel and cuts it to specified length, using saw or knife.
* Removes roll or coil from spindle, weighs roll, and records length and weight of roll on shipping tag.
* Saws scrap tubes and rods into lengths for grinding in hammer mill, using bandsaw.
* Starts hammer mill and feeds sawed scrap into mill to grind it for reprocessing.
* May mix thermoplastic materials and pigments, according to formula, for feeding extrusion machine.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who verifies adjustment of pumps used to force cellulose solution through spinnerettes, forming rayon, to ensure that pump speed conforms with plant specifications for prescribed weight of yarn. Respnsibilities include:
* Turns valve to transfer measured amount of solution to container and times flow, using stopwatch.
* Weighs container and solution and records findings.
Industry:Professional careers
A professional who tends machine that extrudes continuous synthetic filaments from resins to be used in making twine. Respnsibilities include:
* Pours resin into loading drum of machine, and pours buckets of color resin into hopper of machine.
* Cleans extruding die or installs new die in machine.
* Observes thermostat heat-control unit and notifies engineer of deviations from prescribed temperature.
* Notifies supervisor when extruded filaments fail to meet specified standards for thickness and color.
* Tends tumbling machine that rotates drums of resin to mix different colors of resins before they are poured into extruder.
Industry:Professional careers
A professional who tends machines and auxiliary equipment that extrude continuous synthetic filaments from liquid polymer. Respnsibilities include:
* Starts metering pumps and observes operation of machines and equipment to ensure continuous flow of filaments extruded through spinnerettes and to detect processing defects, such as drips, filament stains or missing, oversized, or fused filaments.
* Notifies other workers through intercom when defects occur, necessitating interruption of extruding process, to clean spinnerettes.
* Opens cabinet doors to cut threadlines (multifilaments) away from guides, using scissors.
* Lowers pan inside cabinet to catch molten filaments until flow of polymer through packs is stopped.
* Presses metering-pump buttons and turns valves to stop flow of polymer.
* Cuts entangled filaments wrapped around gears of machine, using pliers.
* Restarts metering pumps, notifies other worker to receive threadlines, pulls extruded filaments together below spinnerettes to form threadlines, and inserts threadlines through guides to facilitate drawing process on floor below.
* Observes flow of finish across finish rollers and turns valves to adjust flow to specifications.
* Occasionally removes polymer deposits from spinnerettes and equipment, using silicone spray, brass chisel, and bronze-wool pad.
* Wipes finish rollers with cloths and washes finish trays with water when necessary.
* Marks type of malfunctions on maintenance tag, and attaches tag to machine for subsequent repair.
Industry:Professional careers
A professional who tends machines that form continuous synthetic filaments from liquid polymer and lay tow in cans according to specified pattern. Respnsibilities include:
* Installs pack into machine, using handtools, and turns lever to activate metering pump which controls amount of polymer extruded through pack.
* Catches extruded filaments in compressed-air gun and threads filaments through guides to capstans.
* Separates filaments at spinnerette, by hand, inserts cooling tube into spinnerette, and pushes lever to force air through tube to cool filaments.
* Guides tow over capstans and into device that lays tow into cans according to specified pattern.
* Observes machine operation, panelboard, gauges, and rotameter to detect machine malfunction.
* Turns valves and levers to adjust machines as necessary.
* Cuts windup from capstan.
* Notifies Polymer Department, using telephone, when color of polymer is not according to specifications.
Industry:Professional careers
A professional who sets up and operates hydraulic press to extrude blocks of smokeless powder into strands preparatory to cutting, drying, and bagging. Respnsibilities include:
* Attaches specified dies to compression cylinder of press with thumbscrews or clamps.
* Inserts block in compression cylinder and locks cover in place with thumbscrews.
* Turns ram control valve to extrude powder slowly to avoid explosion.
* Examines extruded lengths for dirt streaks and malformations.
* Positions fiber containers under discharge chute of each die hole, and replaces containers as they are filled.
Industry:Professional careers
A professional who cleans spinnerettes that extrude synthetic fibers. Respnsibilities include:
* Disassembles packs containing spinnerettes.
* Disassembles spinnerettes, washes them in acid bath, and dries them with compressed air.
* Inspects holes in cleaned spinnerettes to detect damage or wear.
* Disassembles, cleans, and reassembles outflow quench sticks. May reassemble cleaned spinnerettes, using wrench.
* May buff surface of spinnerettes, using power buffer.
* May clean clogged spinnerette holes, using ultrasonic vibrator.
Industry:Professional careers
A professional who cleans spinnerettes that extrude synthetic fibers. Respnsibilities include:
* Disassembles packs containing spinnerettes.
* Disassembles spinnerettes, washes them in acid bath, and dries them with compressed air.
* Inspects holes in cleaned spinnerettes to detect damage or wear.
* Disassembles, cleans, and reassembles outflow quench sticks. May reassemble cleaned spinnerettes, using wrench.
* May buff surface of spinnerettes, using power buffer.
* May clean clogged spinnerette holes, using ultrasonic vibrator.
Industry:Professional careers
A professional who wipes jets (spinnerettes) through which filaments of rayon are extruded and ties broken filaments together to facilitate uninterrupted production of acetate rayon. Respnsibilities include:
* Observes cellulose solution emerging from spinnerettes to detect interruption or narrowing of stream, indicating blockage.
* Wipes surface of spinnerette with thumb to remove clogged cellulose particles.
* Catches and ties together strands of rayon if breaks occur in filament.
* Notifies spinner to rethread filaments through machine after repairing breaks or wiping jets.
* Reports permanently clogged, damaged, or worn jets to maintenance personnel.
Industry:Professional careers
A professional who tends manually operated extrusion press and wirecutter that extrudes and cuts paste (black mix) to form dry-cell battery cores. Respnsibilities include:
* Loads press hopper with paste and moves lever to start ram that forces paste through die of prescribed diameter onto cutter.
* Pulls lever to lower wire cutter and cut extruded paste into segments (cores).
* Tilts cutter to dump cores onto tray.
Industry:Professional careers
