اليوم: 27 سبتمبر، 2022

أسطوانة من الحديد الزهر

Generally classified by manufacturing process: The roll whose working layer is white-faced structure (matrix + carbide) due to the chilling effect of the metal type is called chilled cast iron roll.Cast iron rolls use the above method, but appropriately increase the carbon content of molten iron to obtain a hemp structure (matrix + carbide + graphite), […]