| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat treating oven which can prevent hot gas from flowing out a heat treating chamber and prevent outer gas from flowing in the chamber without setting additional equipment and has excellent temperature uniformity in the chamber, and to provide a method for producing carbon fibers with the heat treating oven. SOLUTION: This heat treating oven has a heat treating chamber, a hot gas exhaust port and a hot gas supply port disposed on the upper and lower sides of the chamber, respectively. A yarn-feeding and yarn-drawing ports are disposed on the sides of the chamber, and fibers travel in the horizontal direction. Simultaneously blowing hot gas is blown on the lower sides of the fibers. COPYRIGHT: (C)2003,JPO
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