PURPOSE: To easily eliminate sludge attached to a workpiece with no damage thereto by putting the workpiece with sludge attached thereto together with granule of an inorganic material in a heated container and imparting external force to the container.
CONSTITUTION: Burned ceramic pieces 1 and sand 14 serving as an unwanted attachment eliminating material are put in a container 12 made of a metal or ceramic material. The container 12 is connected through a connecting shaft 16 to a motor 18 so as to impart external force thereto. The container 12 is in turn put in a hot vessel 20 to be heated until the inner temperature rises to or near the melting point of the sludge. Thus, the container 12, kept in the heated condition, is driven for rotation to impart external force, so that the workpieces 1 can move within the container 12. As the result, the sludge can be easily eliminated from the workpieces 1. Thereafter, the workpieces 1 and the sand 14 are taken out to be separated by a screen or the like or to be washed.
| JP2005000835 | WASHING METHOD FOR CYLINDRICAL BASE MATERIAL |
| JPH0957224 | METHOD FOR WASHING ORGANIC OPTICAL COMPONENT |
KODO GIICHI
OKANE MASAAKI
TANAKA YUKIO
