| 摘要 |
PURPOSE:To make a final product accurate in dimensions and to improve its yield by providing a cooling device capable of controlling the flow rate, etc. of a cooling liquid to the front and back of an elongator and making the temperature distribution in the axial direction of a material to be cooled controllable. CONSTITUTION:A titled installation is formed by arranging a cooling device C at the front and/or the back of an elongator 17; the device C is formed by arranging one or more cooling units 2, consisting each of a cooling tube 4 and a water chamber 6, on the pass line of a material to be cooled, so that cooling water is sprayed at an optional flow rate from optional number of nozzles 3. The spraying nozzles 3 are provided to the tube 4 which is formed so that the material such as a hollow tube stock passes through its inside. The water chamber 6 is located at the back of nozzles 3 and is formed so as to supply a cooling liquid to the material. |
