| 摘要 |
PROBLEM TO BE SOLVED: To continuously perform rough polishing to finish polishing by using an abrasive belt formed by superposing and connecting the surface on which no abrasive grain is adhered of a finish abrasive belt to the surface from which abrasive grains and an adhesive layer are removed of a rough abrasive belt. SOLUTION: A rough abrasive belt 13 (#120) 0.8 mm in thickness (thickness of a base substance 11: 0.3 mm) is bonded to a finish abrasive belt 14 (#400) 0.5 mm in thickness (thickness of a base substance 11: 0.3 mm). In the bonding of the abrasive belts, the abrasive grain and adhesive layer 10 of the rough abrasive belt 13 are removed, and the surface on which no abrasive grain is adhered of the finish abrasive belt 13 is superposed and adhered to the surface from which the abrasive grain and the adhesive layer 10 of the rough abrasive belt 13 is removed. A rough polishing and a finish polishing are continuously performed by use of this belt. Consequently, the working time can be shortened, compared with the separate use of the rough abrasive belt 13 and the finish abrasive belt 14, and the working efficiency can be improved. |
