| 摘要 |
PURPOSE:To prevent slackening of hoop steel and prevent occurrence of scratches on the surface of steel hoop by spouting fluid from each taking-up guide to a hot rolled steel hoop and taking up pressing the hot rolled steel hoop against a mandrel. CONSTITUTION:Each blocker roll 3-1... sends out a hot rolled steel hoop pressing it against a mandrel 2. A fluid chamber 11 is provided inside of each taking-up guide 4-1..., and fluid ducts 12 are attached on both sides to introduce fluid such as water, air etc. Many slits 13... are provided parallel to longitudinal direction on the face that faces the mandrel 2. Fluid is spouted to the hot rolled steel hoop 1, and the steel hoop 1 is taken up while being pressed against the mandrel 2. |
