An ovd process adjustable deposition system and its adjustment method

Abstract

The invention relates to the technical field of optical fiber preform rod manufacturing, in particular to an OVD process adjustable deposition system and an adjustment method thereof. The system includes two sets of cavity plate assemblies, a deposition amount monitoring device and a control device. Wherein, two sets of cavity plate assemblies form a cavity with an air inlet side and an air outlet side for depositing optical fiber preforms, each set of cavity plate assemblies includes at least two cavity plates that are rotatably connected, and The angle of the cavity plate can be adjusted along with the deposition of the optical fiber preform; the deposition amount monitoring device is used to monitor the deposition amount of the optical fiber preform; the control device is used to adjust the angle of the cavity plate according to the obtained deposition amount Angle to adjust the remaining space of the cavity. This solution can solve the problems in the prior art that more reaction gases and raw materials need to be invested in the initial stage of deposition, and the problems of inconsistent deposition quality throughout the entire cycle.

Description

technical field [0001] The invention relates to the technical field of optical fiber preform rod manufacturing, in particular to an OVD process adjustable deposition system and an adjustment method thereof. Background technique [0002] The process of manufacturing optical fiber preform rods by OVD process is: first, opaque powder rods are deposited on a rotatable core layer quartz rod in the deposition chamber, and then sintered into transparent optical fiber preform rods through a high-temperature heating furnace. [0003] The deposition process is to set up a deposition chamber in the deposition chamber, and the rotating chucks at both ends drive the core layer of quartz rods to rotate together, and multiple hydrogen-oxygen flame torches move in a circular motion while chemically reacting various gaseous raw materials and gases to form solid SiO 2 Tiny particles adhere to the core quartz rod and gradually become an opaque powder rod. The deposition chamber surrounds the ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects existing in the prior art, the object of the present invention is to provide an OVD process adjustable deposition system and its adjustment method, which can solve the problem of needing to invest more reaction gas and raw materials in the initial stage of deposition in the prior art, and the resulting Problems with inconsistent deposition quality throughout the cycle

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