制剂用多通管接头,一般都用玻璃管制成.由于易碎,按装时常使人误伤,使用亦不方便。近来,我们用聚乙烯塑料管,自制各种多通管接头,既不碎,也不误伤人,使用很方便。在制作过程中,常用酒精灯将塑料管熔融,衔接而成.由于酒精燃烧时,其火焰内含有炭粒,易污染成黄褐色;同时塑料管直接在火焰上熔融易焦 The preparation of multi-way pipe joints, generally made of glass tube.Because of fragile, often caused by accidental injury, use is not convenient. Recently, we use polyethylene plastic pipe, made a variety of multi-way pipe joints, neither broken nor accidental wounding, easy to use. In the production process, the common alcohol lamp will melt the plastic tube, made of convergence. As alcohol burns, the flame contains carbon particles, easy to pollute into brown; at the same time the plastic tube directly in the flame melting easy to focus