ACME

1 acme A-FILES PLC CONTROLLED BARREL LINE INSIDE OF A PLATING BARREL BARREL ZINC PLATING BARREL PLATING IS THE MOST EFFICIENT METHOD FOR FINISHING BULK PARTS AND ANY PIECES THAT DO NOT REQUIRE INDIVIDUAL HANDLING. PARTS ARE PLACED INTO ROTATING PERFORATED POLYPROPOLYNE CYLINDERS [BARRELS]. CURRENT IS APPLIED WITH RED JACKETED COPPER DANGLERS, AND PIECE TO PIECE CONTACT MAINTAINS THE CURRENT DENSITY. THE PLATER NEEDS TO EVALUATE EACH OF THE FOLLOWING ITEMS TO DECIDE IF THE DESIRED FINISH ON A PARTICULAR PART CAN BE BARREL PLATED: FINISH FUNCTION (RELATIVE TO USE OF THE PART), PART CONFIGURATION, PART SIZE, PART WEIGHT, CALCULATED PART SURFACE AREA, AND TOTAL WORKLOAD VOLUME AND SQUARE FOOT SURFACE AREA.

2 THE WORKLOAD CAPACITY IS USUALLY 40-60% OF THE TOTAL INTERIOR BARREL VOLUME. THE MAXIMUM WORKLOAD VOLUME IS USUALLY DETERMINED BASED ON TOTAL SQUARE FOOT SURFACE AREA OF THE LOAD AND THE CAPACITY OF THE BATH CHEMISTRY AND CURRENT REQUIREMENTS TO PLATE TO THE SPECIFICATION. OTHER FACTORS ARE THE WEIGHT OF THE INDIVIDUAL WORKPIECES AND THEIR PROPENSITY TO DAMAGE THE FINISH OR THE SERVICEABILITY OF OTHER PARTS IN THE LOAD. DAMAGE OF THIS TYPE IS USUALLY THE RESULT OF THE WEIGHT, CONFIGURATION, OR EDGE CHARACTERISTICS OF THE PARTS AS THEY TUMBLE IN THE BARREL. HISTORICALLY, AS PART WEIGHT APPROACHES.

3 5 TO 1 POUND EACH THE PROBABILITY OF SUCCESSFUL BARREL PLATING IS DIMINISHED.