摘要：【中文】本发明涉及的是光纤通信材料制备技术领域，尤其是一种光纤预制棒熔融成型方法及其制造设备。包括塔架、端部密封装置、抽真空管路、石英砂填充管路、推进装置、加热炉、夹持牵引装置、光纤预制棒冷却装置和测径仪；加热炉安装在塔架上，推进装置安装在加热炉上部的塔架上，夹持装置安装在加热炉下部，光纤预制棒冷却装置安装在夹持装置下部；端部密封装置安装在石英套管上端部，端部密封装置上配有抽真空管路及石英砂填充管路，分别用于对石英套管内抽真空及向石英套管内填充高纯度石英砂；加热炉出口处下部装有测径仪，测径仪通过传感器，测量控制拉制光纤预制棒外径。 【EN】The invention relates to the technical field of optical fiber communication material preparation, in particular to a fusion molding method of an optical fiber preform and manufacturing equipment thereof. The device comprises a tower frame, an end sealing device, a vacuumizing pipeline, a quartz sand filling pipeline, a propelling device, a heating furnace, a clamping and traction device, an optical fiber perform cooling device and a diameter measuring instrument; the heating furnace is arranged on the tower, the propelling device is arranged on the tower on the upper part of the heating furnace, the clamping device is arranged on the lower part of the heating furnace, and the optical fiber perform cooling device is arranged on the lower part of the clamping device; the end sealing device is arranged at the upper end part of the quartz sleeve and is provided with a vacuumizing pipeline and a quartz sand filling pipeline which are respectively used for vacuumizing the quartz sleeve and filling high-purity quartz sand into the quartz sleeve; the lower part of the outlet of the heating furnace is provided with a diameter measuring instrument which measures and controls the outer diameter of the drawn optical fiber preform through a sensor.