| 摘要 |
A die for manufacture of bimetallic articles contains a punch, two remotely located coaxial molds, pressing balls with a holder located between the molds evenly in the circle, a casing, a tightening bushing, and upper and lower plates. The holder is made in the form of screws radially screwed into the casing. The balls are secured at the ends of screws in blind holes provided for this purpose. |
