Impact of austenitization temperature on size of austenitic grain of chrome-molibdenum-vanadium steel has been studied. It has been shown that when austenitization temperature is 850-1050ºС, nominal dia. of austenitic grain in the structure of chrome-molibdenum-vanadium steel changes from 0,063 mm to 0,084 mm.
The article outlines the method of diversification of purchase as a tool to promote competition between suppliers of burned dolomite and to reduce production costs.
Damaged scrap cutters in press-shears РС-1200 were examined, the cause of damage was defined. It has been established that early failure of cuttersis caused by low values of hardness, because the producer did not adhere to heat-treatment procedure.
A number of actions were carried out during the operation of ladles with working lining from periclase-carbonaceous products,aimed both to improve lifetime of the items applied industrially, and to select alternative suppliers of these refractories.