Job Description:

• 1) Determines density and resistance of carbon samples which have been graphitized and inspects graphitized stock after removal from furnace: Marks samples of green stock before graphitization to indicate their position in furnace.

• 2) Receives samples from FURNACE UNLOADER before remaining charge is unloaded.

• 3) Cleans samples with scraper and steel wool and weighs them.

• 4) Measures samples in several places with diameter rule to obtain average diameter.

• 5) Places samples on resistance-testing device, sets meter to allow specified number of amperes to pass through sample, and records readings from millivoltmeter.

• 6) Calculates average density and average resistance from weight, average diameter, and millivolt reading, using slide rule and formula.

• 7) When furnace is unloaded, marks pieces with resistance grade number of samples.

• 8) Inspects cleaned stock for pits, cracks, burrs, and bends.

• 9) Determines extent of damage from cracks and imperfections, and marks salvageable pieces for cutting to next largest possible size.

• 10) Directs workers to remove inspected pieces.