- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tends steam oven that heats liquid plastics in glass molds (cells) to form sheets. Respnsibilities include:
* Examines and removes defective molds from handtrucks.
* Loads trucks holding molds into ovens and records time molds entered ovens.
* Turns steam and cold-air valves to maintain specified pressure and temperature in oven.
* Inserts knife into baked sheet or feels sheet to determine that sheet is baked to specifications.
Industry:Professional careers
A professional who removes plastics sheets from glass molds (cells). Respnsibilities include:
* Positions mold on stand or table.
* Inserts wedge between edges of glass plates and pries slates from plastics sheet.
* Stacks plate glass on rack or trucks.
* Records weight of plastics sheets.
* May lower molds into soaking tanks to loosen plastics sheet, using hoist.
Industry:Professional careers
A professional who tends hydraulic presses that compress and bake chipped, rolled, or slabbed plastics materials into cake molds for sheeting. Respnsibilities include:
* Turns valves to regulate pressures and temperatures in baking and cooling presses.
* Turns dial indicator arm to set press-cycle time.
* Pulls hopper lever to fill mold with specified weight of plastics chips.
* Places platen on top of mold and lifts filled mold to roller conveyor.
* Pushes baked molds out of heated press, using bar.
* Pushes filled molds from conveyor and supply rack into baking press.
* Turns valve to close press.
* Observes meters and gauges to verify specified temperatures, pressures, and press-cycle times.
Industry:Professional careers
A professional who tends machine that pulls thermosetting plastics sheeting materials through preheating oven and forming frames to form sheets to specifications. Respnsibilities include:
* Turns dials on control panel to regulate specified temperatures in oven and molds.
* Moves lever to regulate tension on sheeting.
* Observes gauges to verify temperatures.
* Observes width and alignment of sheeting to ensure flanging of sides.
* Positions mold frame laterally in machine to correct alignment.
* Feels stiffness and consistency of molded sheeting to detect machinery malfunctions.
* Signals plastics-spreading-machine operator to synchronize feed of materials into molding process.
* Replaces molds in frame to conform to product specifications.
* Patches tears in film, using gummed tape.
Industry:Professional careers
A professional who tends equipment that fuses granulated polystyrene into pipe coverings, used for insulation. Respnsibilities include:
* Positions funnel into top of mold and dumps or opens chute of overhead hopper to load specified quantities of material.
* Removes funnel and adjusts stripper plate and cutter rim to ensure molding of material into specified sizes and shapes.
* Manually locks mold and opens steam valve to admit heat.
* Observes heat recorder and adjusts valves to attain specified temperature to fuse materials for prescribed period of time.
* Unlocks mold and removes pipe covering, using hoist.
* Moves product to storage area, using handtruck.
* May mold special products, such as toys and games, and be designated Specialty Molder.
Industry:Professional careers
A professional who sets up and operates blow molding machine to mold plastic products according to specifications. Respnsibilities include:
* Turns valves to start flow of water and release air pressure to machine.
* Moves machine controls to set timing unit and temperature of heating unit and start automatic feed mechanism.
* Adjusts machine mandrel and aligns mandrel with mold chamber, using wrenches.
* Starts molding machine that automatically feeds material from mixing unit to mandrel and to mold chamber.
* Closes chamber to mold product under heat and pressure.
* Removes workpiece from mold after timing device opens mold, and trims excess material from workpiece, using knife or bandsaw.
* Regrinds excess material and unsatisfactory workpiece for reuse, using grinding machine.
* May weigh completed workpiece to determine accuracy of machine operation.
Industry:Professional careers
A professional who sets up and operates compression molding machines to mold plastic and carbon, graphite, or copper powder products according to specifications. Respnsibilities include:
* Installs dies on press, using clamps, bolts, and handtools, and coats dies with parting agents, according to work order.
* Sets thermostat to regulate temperature of dies.
* Weighs premixed compounds and dumps compound into die well, spreads fabric on die and dumps compound over fabric, or fills hoppers of machines that automatically supply compound to dies during machine operation, using scoop.
* Presses button or pulls lever to activate machines to compress compounds between dies to form and cure specified products.
* Removes cured products from mold, using handtools and airhose.
* Observes machine operation and examines products ejected by machines to determine whether products meet specifications, using calipers.
* Turns pressure control knobs, bolts, and handwheels to adjust machines.
* May mix catalysts and coloring pigments with plastic compound, using paddle and mixing machine.
* May operate compression molding machines to form product under pressure only and be designated cold-molding-press operator.
* May be designated press operator, carbon products.
Industry:Professional careers
A professional who sets up and operates plodder machine to compress milled soap into bars. Respnsibilities include:
* Unbolts head of machine and inserts specified plate that shapes and sizes bar.
* Opens valves to admit steam into heating coils, water to reduce heat caused by friction on compression screw, and create vacuum to draw soap through machine.
* Unbolts filter cap from machine and changes filter.
* Starts machine.
* Inspects compressed bars for specified color, size, and smoothness.
Industry:Professional careers
A professional who sets up and operates plodder machine to compress milled soap into bars. Respnsibilities include:
* Unbolts head of machine and inserts specified plate that shapes and sizes bar.
* Opens valves to admit steam into heating coils, water to reduce heat caused by friction on compression screw, and create vacuum to draw soap through machine.
* Unbolts filter cap from machine and changes filter.
* Starts machine.
* Inspects compressed bars for specified color, size, and smoothness.
Industry:Professional careers
A professional who sets up and operates machine to compress granulated or powdered ingredients into products, such as medicinal tablets and storage battery pellets. Respnsibilities include:
* Installs dies in machine and adjusts spring tension and ram pressure of air- or hydraulic-powered press, according to specifications, using handtools.
* Presses control button to activate machine.
* Scoops ingredients into hopper or positions canister of powder on top of hopper, using overhead lift.
* Raises lever to stop machine and collects samples of product, according to established frequency, using tweezers.
* Examines, weighs, and tests samples for defects, such as surface chips and pits, soft centers, and excessive brittleness, using micrometers, scale, and hardness tester; or determines dimensions of sample to verify machine setup, using calipers, micrometers, and go-not-go gauges.
* Routes sample to lab for analysis, according to procedure.
* Adjusts machine pressure and tension to remove product flaws and ensure conformity to product specifications.
* Records product information, such as scrap quantity, machine number, and ingredients, used to complete work ticket.
* Places completed work tickets with trays of product awaiting further processing.
* Removes and cleans dies and compression chambers, using swabs.
* May only operate machines and notify supervisor or setup personnel of needed adjustments to machines.
* May pour metal bottom sections of battery and battery pellets into bins of consolidation equipment that operates automatically in conjunction with press machines to insert pellets into cans to form partial assembly of battery.
* May apply heat to pellets to impart desired color prior to assembly into bottom sections of battery, using torch and asbestos squares.
* May be designated compressor, battery pellets.
Industry:Professional careers
