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Crucible pot for manufacturing ultra-fine continuous glass fiber

A glass fiber and crucible technology, applied in the field of ultra-fine continuous glass fiber production crucibles, can solve the problems of complex design, large platinum alloy occupation, difficult processing, etc. Effect

Active Publication Date: 2009-07-29
NANJING FIBERGLASS RES & DESIGN INST CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] At present, the method used in the production of ultra-fine continuous glass fiber yarn is to use a crucible made of all platinum alloy to melt the glass and carry out fiber molding. The finished crucible must reach a certain volume, resulting in a large amount of platinum alloy, and it is uneconomical to put it into industrial production.
Therefore, the design of the crucible structure is complex and the processing is very difficult.

Method used

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  • Crucible pot for manufacturing ultra-fine continuous glass fiber

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] Referring to Fig. 1, the present invention uses refractory materials to build a crucible 1, and the effective volume of the crucible 1 is 0.5 to 1.5 times of its output. The two plate-shaped lead-in electrodes 2 arranged in the crucible are rectangular or trapezoidal. After the current is introduced into the glass melt through the lead-in electrodes, the glass ball can be melted by the melt itself acting as a resistor to energize and generate heat. The plate electrode 2 is arranged on both sides of the crucible along the center line of the crucible, the bottom of which is 50-100mm away from the upper surface of the crucible bottom brick, and the angle with the vertical line of the bottom brick is 15°-25°, and the distance between the two plate electrodes is 0.8 to 0.9 times the length of the crucible. Through this arrangement, the power line can be arranged in the c...

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Abstract

The invention relates to a crucible for producing a superfine continuous glass fiber, which is characterized in that two plate-like guiding electrodes are arranged in the crucible and are arranged on two sides in the crucible along the central line of the crucible, wherein the bottoms of the guiding electrodes are 50 to 100 millimeters away from the upper surface of the bottom of the crucible; the guiding electrodes are arranged slantways relative to the bottom of the crucible; and the distance between the two plate-like guiding electrodes is 0.8 to 0.9 time of the length of the crucible. The crucible overcomes the defects of a full platinum crucible, not only can satisfy the production requirement of the superfine continuous glass fiber, but also can obviously reduce the investment of noble metal platinum alloys so as to greatly reduce the production cost.

Description

technical field [0001] The invention relates to a crucible for producing ultrafine continuous glass fibers, which belongs to the technical field of glass fiber manufacturing. Background technique [0002] Ultra-fine continuous glass fiber is the thinnest single fiber diameter in the glass fiber product series, and its nominal diameter is 3.5-4 microns. Ultrafine continuous glass fiber yarn has good folding resistance, softness, and high strength. The fabric made of it has excellent properties such as softness, tear resistance, folding resistance, and wear resistance. It is especially suitable for manufacturing glass fibers for construction. Membrane structural materials and other special-purpose fabrics. [0003] Since the base fabric of the membrane structure material is a thicker glass fiber fabric, the requirements for ultra-fine continuous glass fiber are: the nominal diameter of the monofilament is 3.5 to 4 microns, and the number of monofilaments contained in each ult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/09C03B37/095C03B5/02
Inventor 刘劲松许远方巩晶晶王福平
Owner NANJING FIBERGLASS RES & DESIGN INST CO LTD
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