| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of performing the recycling of the scrap made by machining of castings by the use of a safe equipment while taking the protection of global environment into consideration and also capable of producing an inexpensive metal powder and developing new goods by molding the powder. SOLUTION: The scrap made by machining of castings, mostly in a state of coarse particles, is formed into a metal powder of moldable size by using, e.g. a stone mill made of natural rock in order to obtain finer metal powder. Synthetic resin in proportion of <=30% is mixed with the above metal powder to form a raw-material composition, which is manufactured into various products exhibiting the external appearance and mass like those of cast products in an ordinary-temperature atmosphere.
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