| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a counter weight capable of easily manufacturing the counter weight excellent in high strength, high specific gravity and design property at a low cost. SOLUTION: Corresponding partial metal molds 16a-16b and 17a-17b are interconnected to each other, and after two partial weight metal molds 16A and 17A have been respectively assembled, and both weight metal molds 16A and 17A are piled up by communicating with each of inside spaces b and c. Then, after the inside space c has been filled with another cutting waste 19 after the communication, molten steel is cast into the inside spaces b and c. In this way, since a waste material occurred in the case each of the partial weights is manufactured by a welding weight method is used as the filler 19 filled in the partial weight metal molds 16A and 17A and the metal molds, the counter weight W excellent in high strength, high specific gravity and design property can be easily manufactured at a low cost. COPYRIGHT: (C)2006,JPO&NCIPI
|
