| 简介 |
The present invention relates to a rolling mill- casting roller with a greater resistance to surface adhesion and a propagation of cracks, as well as a method of manufacturing the same. The method comprises the following steps : a liquid metal and a very large quantity of scrap metal into a melting furnace introducing addition elements; melting the charge at about 1200 °C to 1500 °C; conducting a chemical [...] a sample of the charge, so as to correct the chemical composition to form to correct (by the addition of iron alloys or pure metals); adding sulfur to the charge and a new sample of the charge carrying out further [...], the chemical composition; adding at least one rare earth metal in a ladle; transferring the liquid metal from the melting furnace to the ladle; and transferring the contents of the ladle to the casting device, about the semi-finished roll. |
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