System for wet impact plating

Abstract

Abstract A SYSTEM FOR WET IMPACT PLATING OF METAL PARTS UTILIZING A SINGLE TUMBLING BARREL FOR INDEPENDENT PARTS RINSING AND IMPACTING OPERATIONS RESPECTIVELY WHEN INTERCHANGEABLE, SMALLER PERFORATE AND IMPERFORATE BARREL, DOORS ARE SECURED TO A LARGER DOOR OF THE BARREL. RINSING WATER IS SUPPLIED TO THE BARREL WHILE ROTATING WITH THE PERFORATE DOOR IN POSITION. WATER EXPENDITURE IS THEREBY MINIMIZED AND THE RINSING EFFLUENT IS THEREBY EFFECTIVELY SEPARATED FROM THE IMPACTING MEDIUM. A STATIONARY BIN WITH A SCREEN FOR SEPARATING PARTS FROM THE IMPACTING MEDIUM AND AQUEOUS SOLUTIONS IS POSITIONED BENEATH THE BARREL. COMMUNICATING WITH THE BIN IN SELECTIVELY OPERABLE RELATIONSHIP IS A VENTURI EDUCTOR WHICH, TOGETHER WITH A PUMP COMMUNICATING WITH A WATER STORAGE TANK, IS OPEABLE TO RAPIDLY TRANSFER THE IMPACTING MEDIUM TO A HOPPER POSITIONED OVER THE BARREL FOR REUSE WHILE GENERATING SUFFICIENT TURBULENCE TO TEND TO CLEANSE THE IMPACTING MEDIUM OF SPENT PLATING MATERIAL AND PROMOTER CHEMICALS. THESE SPENT MATERIALS PASS, WITH OVERFLOW WATER, THROUGH AN VERFLOW STRAINER IN THE HOPPER TO THE WATER STORAGE TANK WHERE THEY SETTLE AND ARE SUBSEQUENTLY REMOVED. SUBSTANTIALLY ALL WATER IS THEREBY RECOVERED AND REUSED, AND THE FREQUENCY OF IMPACTING MEDIUM RECTIFICATION IS MATERIALLY LESSENED. TWO SEPARATE CHARGES OF IMPACTING MEDIUM ARE USED IN THE SYSTEM, AND SEVERAL TUMBLING BARREL UNITS MAY BE SUPPORTED BY A SINGLE WATER STORAGE TANK WHERE THE WATER LEVEL AND TEMPERATURE ARE CONTROLLED.

Inventors

• 👤 Lester Coch

Bibliographic Details