| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and system of cooling a glass tube which is capable of cooling a glass tube up to a predetermined temperature in a range of a cooling distance and mounting position in the same degree as a conventional one even when a tube drawing speed is raised in the formation of a small diameter glass tube by continuously drawing the tube in the horizontal direction. SOLUTION: In the method of cooling the small diameter glass tuber 1 continuously drawn and transported at a fixed speed in the horizontal direction by a plurality of air cooling means 9 and water cooling means 10 arranged along the pipe drawing direction, the cooling performance of the water cooling means 10 in the downstream side is higher than that of the cooling performance of the air cooling means 9 in the upstream side, and the water cooling means 10 in the downstream side is composed of a plurality of mist cooling units 16 to perform the cooling step-wise. COPYRIGHT: (C)2011,JPO&INPIT |
