Powder produced from steel 40Kh10S2M grinding sludge

The technology of powder production from grinding sludge of high-temperature steel 40Kh10S2M is developed. It is shown that processing the grinding sludge of steel 40Kh10S2M in a ball grinder at 60 to 80°C for one hour with subsequent washing with detergents, magnetic separation, and annealing in a restorable medium produces powder with satisfactory technological characteristics. In this processing, the consumption of detergents is decreased, water can be recycled, and extracted oil is sent for recycling. The powder can be densified by adding a plasticizer (polyvinyl alcohol) and granulating the mixture. The technology permits producing compacts with a density of 5.6 to 5.8 g/cm3 at pressure of 800 MPa. The powder is recommended as a raw material for powder metallurgy.