Heating manner null of the material in the time of kuratsudo material

摘要

PURPOSE:To prevent a strip from meandering and rupturing by heating strip raw material, needless to say, and clad material coming cut of a rolling mill with a means to bring these materials into contact with heating rolls to perform the heating with the satisfactory efficiency under the small heating equipment space. CONSTITUTION:Before an Al strip 5, for instance, is supplied to rolling rolls 3 and 3', it is wound round the heating rolls 7 and subjected to the solid contact heating. Furthermore, a different metallic strip 6 is the raw material to be rolled and clad unheatably and rewound and superposed on the Al strip 5 as it is and supplied to the rolling rolls 3 and 3'. Then, a different metallic strip 6' is heated to the same temperature as the Al strip or the different temperature with heating rolls 7' in the same way as the Al strip 5 and afterward, supplied to the rolling rolls 3 and 3' superposing on the Al strip 5. Furthermore, at the time of heat-treating and improving the joining property of the clad material coming out of the rolling rolls 3 and 3' before winding up by a winding reel 4, when the heating is performed with the heating rolls, the same effect is obtained and the stable work with the satisfactory efficiency can be performed at the small space.