| 摘要 |
<p>PURPOSE:To prevent the erosion and breakage at high temperature by forming a bellows part from the quartz glass fiber, in the expandable coupling for absorbing the strain due to the heat of a duct, pipe, etc., and the vibration due to a blower, etc. CONSTITUTION:The title expandable coupling absorbs the strain due to the heat of a duct, pipe, etc., and the vibration due to a blower, etc., and the bellows part 1 of the expandable coupling is made of the quartz glass fiber. The quartz glass fiber consists of a cloth, tape, etc., which is formed by weaving the quartz glass fiber containing at least 99.9% SiO2 component. Therefore, the bellows material possesses the superior durability at the high temperature over 540 deg.C. Further, since the need of a heat resisting mat is obviated, the structure of the expandable coupling can be made simple.</p> |
