| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for agglomerating roll grinding dust by which the roll grinding dust can be stably agglomerated without using a binder while obviating the need for cumbersome steps and high equipment cost. <P>SOLUTION: Metal machining chips previously cut to a length of 30 to 80 mm are mixed, in a proportion of≥10%, preferably≥40%, with the roll grinding dust generated in grinding a metal forming roll, such as a hot roll and a cold roll, and compressive force of≥10 MPa is applied to the resultant mixture to compact it. As the metal machining chips, machining chips of, e.g., a cast billet can be used and the degree of curling represented by [(actual length)-(maximum major axis)]/(actual length) is made to≤0.4. Since water adhering to the roll grinding dust is dehydrated in the course of the pressing step, the need for a prior dehydration step can be obviated. The resultant pressed article can be recycled as an iron source, which has high strength and has no possibility of causing powdering. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
