Quartz tube for germanium metal zone-melting purification

The utility model belongs to the technical field of germanium production equipment, and particularly discloses a quartz tube for germanium metal zone melting purification, and an edge sealing ring made of polytetrafluoroethylene is arranged outside a tube opening. According to the utility model, the shape of the pipe orifice for connecting the zone-melting quartz tube and the silica gel plug is improved, and a straight opening is changed into the horn mouth, so that the zone-melting quartz tube can be clamped by a user without winding an adhesive tape before being sleeved with a polytetrafluoroethylene edge sealing ring, the effect of fixing and clamping the connection of the pipe orifice and the silica gel plug is achieved, time and labor are saved, and the production cost is saved; the product quality is improved, and potential safety hazards are reduced. 本实用新型属于锗生产设备技术领域，具体公开一种锗金属区域熔炼提纯用的石英管，管口外设置有聚四氟乙烯材质的封边圈。所述石英管的管口为喇叭口状，本发明经过改进区熔石英管与硅胶塞连接的管口形状，把直口型改为喇叭口型，在套聚四氟乙烯封边圈前就不用缠绕胶布，自己就会卡住，起到固定夹紧管口和硅胶塞连接的作用，省时省力，