| 摘要 |
<p>PURPOSE:To prevent the cracking and falling off of the title element and to obtain an excellent hygroscopic characteristic by infiltrating a slurry consisting of a hygroscopic salt, a moisture absorbent, cement, and a modifier into an element having plural air penetrating passages, curing, and then drying the slurry. CONSTITUTION:The element 2 consisting of the fibrous cloth of glass fiber, etc., and having plural independent air penetrating passages 1 is dipped in the slurry consisting of a hygroscopic salt such as LiCl, a moisture absorbent such as silica gel, cement such as portland cement, fine Al powder for imparting a foaming property, and a modifier such as water glass for improving workability, pulled up, and allowed to stand to cure the slurry. The element 2 is then fitted in a metallic barrel 3, and silicone rubber is filled between the element and the metallic barrel to produce a hygroscopic element.</p> |
