Apparatus for lubricating edge dam in twin-roll type strip casting machine, and method therefor

摘要

An apparatus and a method for lubricating an edge dam in a twin-roll type strip casting machine are disclosed. A continuous uniform lubrication boundary layer is formed on the friction face between the casting rolls and the edge dam, so that the wear of the edge dam refractory material can be reduced, and that the friction faces of the casting roll can be protected, thereby improving the performance and the durability of the machine. The apparatus includes a lubricant spouting nozzle disposed adjacently to a friction face of the casting roll, and a lubricant supplying device for supplying a lubricant to the lubricant spouting nozzle so as to make the lubricant spouted and adhered on the friction face of the casting roll. Further a lubricant spreading roller is installed at a rear of the lubricant spouting nozzle, for pressing the lubricant onto the friction face of the casting roll with a certain pressure so as to make the lubricant clad on the friction face. The method includes the following steps. A liquid lubricant is spread onto the friction face of the casting roll, and the lubricant is made to be uniformly spread on the friction face with the required width. Thus lubricating layer is formed continuously on the friction face, in a state with a solvent of the liquid lubricant being evaporated.