| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a blast furnace blower wherein a spark as a cause developing the ignition phenomenon, is restrained by protecting the friction of a steel-made member used in the oxygen-enriched air. <P>SOLUTION: On the whole surface of a steel-made moving wings 22 constituting a rotor used in the oxygen-enriched air, a friction protecting layer 24 composed of ablating material, is formed, wherein the ablating material contains boron nitride and further, the friction protecting layer 24 contains a lubricant consisting of a hexagonal crystal based laminar crystal structure. <P>COPYRIGHT: (C)2011,JPO&INPIT |
