Abstract: A mold assembly for a thermo-mold continuous casting apparatus which has a casting furnace and a thermo-mold chamber provided with an outlet. The assembly has a first mold member changeably or replaceably mounted within the thermo-mold chamber and being provided with a casting cavity and an enlarged cavity therein. A second mold member is mounted within the thermo-mold chamber and connected to the first mold member. The second mold member is provided with a cavity channel therein communicating with the enlarged cavity of the first mold member, and separating means in the cavity channel for separating the residual metal in the first and second mold members when the casting procedure in the thermo-mold continuous casting apparatus is stopped. An air inlet may be arranged on the thermo-mold chamber to introduce a protective air into the thermo-mold chamber upon changing the first mold member.

Abstract: A safety radiator cap for radiator providing a safety plate or wire made of shape memory alloy. The safety plate or wire bends downward under ambient temperature. High temperature water in the radiator causes the safety plate to extend out due to the memory characteristic of the alloy, and the safety plate thus presses against the neck of the filling hole.