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Leak plate for drawing flat glass fibers and discharge spout thereof as well as flat glass fiber tow

A flat glass fiber, leak nozzle technology, applied in glass manufacturing equipment, manufacturing tools and other directions, can solve the problems of not being able to meet customer needs, not being able to meet customers, performance improvement, etc., to improve deformation, improve physical properties, increase The effect of flow time

Active Publication Date: 2013-07-10
CHONGQING POLYCOMP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technicians have continuously tried to produce flat fiber bushings with a flatness rate of about 2.5. The performance of the products produced is not significantly improved compared with ordinary products, and cannot meet the needs of customers.
[0005] Secondly, the bushings all use nozzles with a single aspect ratio, which produces flat glass fiber strands with a single flatness ratio, and the performance is not significantly improved compared with ordinary products, and cannot meet the needs of customers

Method used

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  • Leak plate for drawing flat glass fibers and discharge spout thereof as well as flat glass fiber tow
  • Leak plate for drawing flat glass fibers and discharge spout thereof as well as flat glass fiber tow
  • Leak plate for drawing flat glass fibers and discharge spout thereof as well as flat glass fiber tow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1 (this embodiment includes two types of leak nozzles)

[0057] The design parameters of the breakout plate are as follows:

[0058] Bottom plate 2: The dispersion strength value of bottom plate 2 is related to the hardness of the bushing plate and the high-temperature creep resistance strength; the higher the value, the better the creep resistance of the plate, but the worse the processing performance. Therefore, in this embodiment, the dispersion strength of the bottom plate 2 is preferably PtRh10, and of course it can be any value of PtRh3-PtRh20. The thickness of the bottom plate 2 is 1.45mm, A of the leak area C on the bottom plate 2 is 16mm, and B is 7mm.

[0059]The first flat nozzle 1a: L1=L2=6.0mm, L3=7mm, L4=6.5mm, W1=1.0mm, W2=1.5mm, W3=2.7mm, W4=1.55mm, H=4.5mm, h=1.5 mm. Then the length-to-width ratio of the leak nozzle M1=4:1, and the ratio of the height of the lower opening of the leak nozzle to the height of the leak nozzle N1=3:1. The sec...

Embodiment 2

[0069] Embodiment 2: (this embodiment only comprises the spout of single specification)

[0070] The design parameters of the breakout plate are as follows:

[0071] Bottom plate 2: The dispersion strength of the bottom plate 2 is preferably PtRh10, the thickness of the bottom plate 2 is 1.45mm, the A of the leak area C on the bottom plate 2 is 16mm, and the B is 7mm.

[0072] The base plate 2 is provided with a flat nozzle with a higher flattening rate in Example 1; that is, the nozzle 1 is the first flat nozzle 1a: L1=L2=6.0mm, L3=7mm, L4=6.5mm, W1=1.0mm, W2=1.5mm, W3=2.7mm, W4=1.55mm, H=4.5mm, h=1.5mm. Then the length-to-width ratio of the leak nozzle M1=4:1, and the ratio of the height of the lower opening of the leak nozzle to the height of the leak nozzle N1=3:1. A first flat spout 1a with a single aspect ratio M1 is set on the bottom plate 2 . Arrangement: The flat leak nozzles 1 are arranged in a row along their own length, with a horizontal spacing X of 7.0m and a ...

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Abstract

The invention provides a discharge spout of a leak plate for drawing flat glass fibers. Leak holes are formed in the discharge spout and comprise an upper open hole communicated with a bottom plate of the leak plate and a lower open hole communicated with the upper open hole; the first cross sectional area of the upper open hole is smaller than the second cross sectional area of the lower open hole. By applying the discharge spout, molten glass flows into the lower open hole from the upper open hole and then the flow speed is reduced to ensure that the flowing time of the molten glass in the lower open hole is increased, then the heat radiation of the molten glass in the lower open hole to the outside is increased, and the heat dissipating capacity is increased to facilitate the formation of glass fibers at the outlets of the leak holes, so that by adopting the discharge spout, the flatness ratio of the produced glass fibers is improved, and then the physical properties of the produced flat glass fiber tow are improved. The invention also provides the leak plate for drawing the flat glass fibers, and the leak plate comprises a bottom plate and the discharge spout which is arranged on the bottom plate. The invention also provides a flat glass fiber tow which is produced by using the leak plate for drawing the flat glass fibers.

Description

technical field [0001] The present invention relates to the technical field of glass fiber production, more specifically, to a bushing for a flat glass fiber drawing bushing, and also to a flat glass fiber drawing bushing with the above-mentioned leaking nozzle. The present invention also provides a Flat glass fiber strands produced using bushings as described above. Background technique [0002] The bushing is a trough container, which is the key molding device in the production of glass fiber. The bottom of the bushing is provided with a nozzle. During production, the high-temperature molten glass flows into the bushing, adjusts to a suitable working temperature through the bushing, then flows out from the nozzle on the bottom plate, and is stretched into continuous glass fibers under the action of a high-speed rotating wire drawing machine. At present, the bushing plate is composed of precious metal platinum-rhodium alloy and dispersion-strengthened platinum-rhodium allo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/08C03B37/022
Inventor 蒋朝军王鑫
Owner CHONGQING POLYCOMP INT