Set of rod shrinkage cage
A cage and melting technology, applied in the direction of manufacturing tools, glass manufacturing equipment, etc., can solve the problems of difficult coincidence of the central axis of the quartz mandrel and the quartz sleeve, and difficulty in the circulation of the quartz mandrel, and achieve good sintering and melting. shrinking effect, wide application range, ensuring the effect of sintering and shrinking effect
Active Publication Date: 2020-02-18
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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Problems solved by technology
However, in actual operation, it is difficult to ensure that the central axis of the quartz core rod coincides with the quartz sleeve, and it is also difficult to ensure that the gap between the outer surface of the quartz core rod and the inner surface of the quartz sleeve remains open.
Method used
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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0021] see Figure 1-Figure 3 , a sleeve rod melting and shrinking cage, used for the centering of the quartz core rod 3 and the quartz sleeve 2, the quartz core rod 3 and the quartz sleeve 2 form a centering part 1, and the sleeve rod melting and shrinking cage includes two groups The centering mechanism 4 is respectively located at both ends of the centering piece 1; the centering mechanism 4 centers and fixes the quartz core rod 3 and the quartz sleeve 2 through expansion, so that the central axes of the quartz core rod 3 and the quartz sleeve 2 coincide ; The centering mechanism 4 is evenly di...
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The invention discloses a sleeve-rod melting condensation holder used for centering a quartz core rod and a quartz sleeve tube, and a centering part is composed of the quartz core rod and the quartz sleeve tube. The sleeve-rod melting condensation holder comprises two groups of centering mechanisms which are located on both ends of the centering part respectively; the centering mechanisms are used for centering and fixing the quartz core rod and the quartz sleeve tube by the way of expansion, and make the axes of the quartz core rod and the quartz sleeve tube coincident; the centering mechanisms are provided with diversion holes for maintaining gap circulation between the outer surface of the quartz core rod and the inner surface of the quartz sleeve tube. The sleeve-rod melting condensation holder can make the axes of the quartz core rod and the quartz sleeve tube still maintain coincident during sintering melting condensation, and also can make the gap between the outer surface of the quartz core rod and the inner surface of the quartz sleeve tube maintain circulating.
Description
technical field [0001] The invention belongs to the field of optical fiber prefabricated rod manufacturing, and in particular relates to a sleeve rod shrinkage holder for keeping the center axes of a quartz core rod and a quartz sleeve tube coincident in a sleeve rod shrinkage process. Background technique [0002] At present, in the optical fiber manufacturing industry, the optical fiber preform is usually formed by high-temperature sintering and shrinkage by a chemically deposited quartz core rod with a small outer diameter and a quartz sleeve with a large inner diameter. During sintering and shrinkage, the quartz core rod is located inside the quartz sleeve, and it must be ensured that the central axis of the quartz core rod and the quartz sleeve coincides so as not to affect the quality of sintering and shrinkage. Moreover, during sintering and shrinkage, the gap between the outer surface of the quartz core rod and the inner surface of the quartz sleeve must be kept in c...
Claims
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IPC IPC(8): C03B37/012
CPCC03B37/0126
Inventor 刘涛赵旭
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD