| 摘要 |
PURPOSE:To obtain glass having less distortion by drying a glass gel circular in the cross-section contg. liquid while rolling it in a vessel. CONSTITUTION:In a method for manufacturing glass by a sol gel method, the gel contg. liquid is dried by the following way. In other words, the gel which contains liquid and is circular in an outside shape of cross-section is introduced into a vessel wherein the gel is enabled to roll and dried while rolling it by rotating the vessel unidirectionally or like the swing of a pendulum. In case of drying it, the drying is accelerated or can be uniformly performed by blowing gas such as air into the vessel. In this case, it is occasionally desirable that the gas is humidified with water or alcohol. The gel is easily divided because the drying is quickly caused in the unhymidified gas. The humidification is performed, for example by passing the gas in water or alcohol or passing it through a filter contg. water or alcohol. |
