| 摘要 |
PROBLEM TO BE SOLVED: To provide an efficient method and an apparatus for rotary molding of a metal tube, where the generation of cracks, etc., in the metal tube is prevented and high speed spinning can be conducted. SOLUTION: The method is made by rotary molding of a metal tube, where the metal tube is spun while being cooled by a coolant sprayed thereon. The apparatus is an apparatus for rotary molding of the metal tube, where a metal tube cooling means capable of injecting the coolant on the metal tube is provided. COPYRIGHT: (C)2004,JPO
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