METHOD OF MAKING ANTIFRICTION PRODUCTS

摘要

METHOD OF MAKING ANTIFRICTION PRODUCTS In accordance with the proposed method of making antifriction products, a porous carbon blank is heated up to 1,800 to 2,200.degree.C and impregnated with molten silicon. The impregnation starts at a temperature of 2,100 to 2,200.degree.C for 3 to 5 minutes, then at 1,800 to 2,050.degree.C for 30 to 40 minutes. Thereafter, the blank is cooled down to a temperature of 900 to 800.degree.C at a rate of 30 to 40.degree.C/min, then down to 200 to 150.degree.C at a rate of 50 to 100.degree.C/min. This permits obtaining products with an even phase distribution, whereby their wear resistance and strength are improved.