Basic Job Responsibilities of Abrasive Grader Employees
Operate pebble mill to grind emery, rouge, and other abrasives separates them according to fineness by water suspension method. Examine abrasive under microscope to define grinding time required and grinds abrasive in pebble mill. Turn valve to allow ground particles water to flow into agitator tank. Press button to start agitator which stirs particles into suspension. Stop machine determines by microscopic examination when particles of particular grade have settled below tank outlet. Open stopcock to allow particles remaining above the outlet to descend into vat. Repeat separation process for other grades, regrinding as required.
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