Design and Development of a Parkerizing Tank

Abstract

The work focused on the development of a 70 litrescapacity Parkerizing tank incorporating electric resistance heating elements. The burning of fuels such as coal, kerosene, and wood is an inefficient process for coating guns and other ferrous metals. For this, an automatically controlled Parkerizing tank was developed and fabrication was done using stainless steel and electric resistance heating elements. It contains two 6kW heaters. The tank has a unique trapezium shape which can permit coating of large parts, with high efficiency and is capable of boiling the phosphate solution in less than 20minutes. From test results, the tank was able to boil 15litres of phosphate manganese solution in 12minutes. All the mild steel engine parts coated in the solution appeared to be dark gray in colour after 6minutes of submerging it in the solution showing that the chemical mixture is accurate.