Making device and method for soft glass optical fiber preform
A technology for optical fiber preforms and manufacturing devices, which is applied in glass manufacturing equipment, manufacturing tools, etc. It can solve the problems of difficult to obtain core layer preforms, difficult timing and lifting height, and difficult to produce glass rods with excellent optical uniformity. and other problems, to avoid surface devitrification effect, ensure optical uniformity, and achieve the effect of excellent optical uniformity
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[0039] The present invention will be further described below in conjunction with the drawings, but the protection scope of the present invention should not be limited by this.
[0040] Such as Figure 1-2 As shown, a soft glass optical fiber preform manufacturing device based on double crucible laminar flow leakage injection includes a coaxial inner crucible 1 and an outer crucible 2. The outer crucible is longer than the inner crucible to be able to be sealed After completely surrounding the inner crucible, the inner crucible 1 and the outer crucible 2 are respectively provided with a stirring device 3, in the lower part of the inner crucible 1 there is an outlet communicating with the mold 4, the mold 4 is built with a piston And its electric drive mechanism 5, the inner crucible 1 and the outer crucible 2 are placed in a high temperature furnace 6, the mold 4 is placed in the heating element 7, and the mold 4 and the electric drive mechanism 5 are placed on a lifting platform ...
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