Heating method of polyethylene fibre bundle

A polyethylene fiber and heating method technology, applied in the field of polyethylene fiber bundles, can solve problems affecting the normal production of polyethylene fiber bundles, etc.

Inactive Publication Date: 2012-05-23
杨珍芬
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direction of this hot gas intake would have more serious consequences in another situation, see figure 2 , in the polyethylene fiber production process, in order to improve the production efficiency, the polyethylene fiber bundle passing through the heating box 1 is not a bundle, but a plurality of polyethylene fiber bundles, in the process of the multi-bundle polyethylene fiber bundle passing through the heating box 1 , if more than one filament breaks in one of the polyethylene fiber bundles, then something like figure 2 As in the above, the broken polyethylene fiber is blown by hot gas and entangled with another polyethylene fiber bundle, so that the polyethylene fiber bundle cannot pass through the polyethylene fiber bundle outlet 3 smoothly, and even when the entanglement is serious Affect the normal production of polyethylene fiber bundles

Method used

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  • Heating method of polyethylene fibre bundle
  • Heating method of polyethylene fibre bundle
  • Heating method of polyethylene fibre bundle

Examples

Experimental program
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Embodiment 1

[0034] See image 3 , image 3 It is a schematic diagram of the polyethylene fiber bundle heating method in Example 1 of the present invention.

[0035] In the present invention, the ultra-high molecular weight polyethylene powder is swollen, sprayed, formed into jelly and initially drawn to form a polyethylene fiber bundle precursor. The polyethylene fiber bundle precursor refers to the polyethylene that has just become solid from the liquid state. Generally speaking, polyethylene needs a pre-drawing step after it has just formed a solid state. Usually, the polyethylene fiber after the pre-drawing step The bundle is called a strand.

[0036] In this embodiment, the polyethylene fiber bundle 2 passes through the polyethylene fiber bundle inlet 4 and the polyethylene fiber bundle outlet 3 of the heating box 1 from left to right, there is hot gas inside the heating box 1, and the hot gas can heat the polyethylene fiber bundle 2 for heating.

[0037]Install a nozzle near the ...

Embodiment 2

[0044] See Figure 4 , Figure 4 It is a schematic diagram of the polyethylene fiber bundle heating method in Example 2 of the present invention.

[0045] In this embodiment, the heating of the polyethylene fiber bundle 2 is completed in three heating boxes, respectively: the first heating box 5 , the second heating box 6 and the third heating box 7 . The structure of these three heating boxes is identical, and is similar to the heating box described in Example 1.

[0046] In the first heating box 5, the hot gas adopts hot air, and the temperature of the hot air is 70° C., and the advancing speed of the polyethylene fiber bundle 2 at the polyethylene fiber bundle inlet 4 is 2 m / min. The advancing speed at outlet 3 of the polyethylene fiber bundle of 5 was 2.3 m / min. The length of the box is 1.4 meters and the width is 70 centimeters.

[0047] In the second heating box 6, the hot gas adopts hot air, and the temperature of the hot air is 90° C., and the advancing speed of th...

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Abstract

The invention discloses a heating method of a polyethylene fibre bundle. In the process that the polyethylene fibre bundle passes through a heating box, hot gases are blown towards the polyethylene fibre bundle, and the gas inlet direction of the hot gases is same with the advance direction of the polyethylene fibre bundle. Compared with the prior art, the gas inlet direction of the hot gases forheating the polyethylene fibre bundle is parallel to the advance direction of the polyethylene fibre bundle , if a certain breakage occurs during the advance of the polyethylene fibre bundle, the broken polyethylene fibre can be always approximately parallel to the movement direction of the polyethylene fibre bundle under the blowing of the hot gases, a plurality of fiber bundles can not be mutually entwisted during the fiber bundles coexist, thereby being beneficial to the polyethylene fibre bundle entering or exiting the polyethylene fibre bundle outlet of the heating box and the smooth production of the polyethylene fibre bundle. The invention also provides a polyethylene fibre bundle prepared by the heating method of the polyethylene fibre bundle.

Description

technical field [0001] The invention relates to the field of polyethylene fiber production, in particular to a heating method for polyethylene fiber bundles and polyethylene fiber bundles prepared by the heating method. Background technique [0002] Ultra high molecular weight polyethylene (UHMWPE) fiber is also called high strength high module polyethylene (HSHMPE) fiber or elongation chain polyethylene (ECPE) polyethylene fiber or high performance polyethylene (high performance polyethylene (HPPE) fiber or high modulus polyethylene (high module polyethylene (HMPE) fiber), generally refers to the weight average molecular weight of (1-6) × 10 6 The polyethylene fiber, sometimes weight average molecular weight also can be higher than this value, and this fiber is referred to as polyethylene fiber for short in the present invention. Polyethylene fiber is another high-performance fiber that appears after carbon fiber and aramid fiber. [0003] Due to the properties of high st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D10/02D01D5/12
Inventor 周成程
Owner 杨珍芬
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