| 摘要 |
PURPOSE:To decrease the abrasion of staves and to prevent the erosion of a cooling pipe and the propagation of cracking in the body of the staves by casting the pipe wound with metallic wires via a heat insulating material on the roughened outside surface into metal. CONSTITUTION:A cooling pipe 1 is preheated to a prescribed temp. and a heat insulating material 5 such as zircon is coated thereon. Metallic wires 2 are wound and fixed in >=1 plies on the pipe coated with the material 5. Such pipe is set in a mold and cast steel 3 is cast in a suitable casting temp. range, whereby the pipe 1 is cast in said steel. Here, the molten metal drops in temp. and the velocity of flow while melting the wires wound in tight contact with each other or spacially at a constant pitch on the material 5, and solidifies without contacting with the pipe by sandiwiching the material 5 without breaking said material. Unpacked parts are eliminated by selecting the section, pitches, the number of plies, etc. of the wires according to casting temps. |
