| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a tube of high dimensional accuracy by which one or two or more kinds of deviation in outside diameter, deviation in inside diameter and deviation in circumferential wall thickness are very small, in other words, a highly efficient manufacturing method for the tube of high dimensional accuracy. SOLUTION: When a tube of high dimensional accuracy is reduced while enhancing one or two or more kinds of deviation in outside diameter, deviation in inside diameter or deviation in circumferential wall thickness, a plug 1 is inserted in the tube in a floating condition, and the tube is continuously fed into a die by a tube feeding means 11 on a die 2 inlet side. COPYRIGHT: (C)2005,JPO&NCIPI
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