输送气态氯化铝的升华管由横竖两段组成.横段一端和捕集器相衔接,另一端置于竖段升华管的上端.竖段升华管下端支在反应炉炉盖上.竖段升华管原用耐火砖砌制,缝隙大,易发生泄漏,且内表面极粗糙,有碍气流通过.横段升华管历来采用陶瓷管,成本较高,为此于1985年初我们设计了 The sublimation tube for conveying gaseous aluminum chloride is made up of two sections of horizontal and vertical sections, one end of which is connected with the catcher and the other end of which is placed on the upper end of the vertical sublimation pipe, the lower end of the vertical section sublimation pipe is supported on the furnace lid of the reaction furnace. Sublimation tube used refractory bricks, cracks, prone to leakage, and the inner surface is very rough, impede the flow through. Sublimation tube has always been the use of ceramic tubes, the higher cost, for which we designed in early 1985