WO2025015741A1 - 一种高性能芳纶纸热轧后让纸面舒展平整的制备方法 - Google Patents

一种高性能芳纶纸热轧后让纸面舒展平整的制备方法 Download PDF

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WO2025015741A1
WO2025015741A1 PCT/CN2023/126987 CN2023126987W WO2025015741A1 WO 2025015741 A1 WO2025015741 A1 WO 2025015741A1 CN 2023126987 W CN2023126987 W CN 2023126987W WO 2025015741 A1 WO2025015741 A1 WO 2025015741A1
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Prior art keywords
aramid
paper
roller
hot
hot rolling
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English (en)
French (fr)
Inventor
李永锋
蒋少波
李健灿
黄振宇
蒋泉洪
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Ganzhou Longpont Material Technology Co Ltd
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Ganzhou Longpont Material Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0035—Straightening or flattening
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating

Definitions

  • the invention belongs to the technical field of aramid paper preparation, and specifically relates to a preparation method for high-performance aramid paper which allows the paper surface to be stretched and smooth after hot rolling.
  • Aramid paper has excellent electrical properties, tensile strength and light weight, and is widely used in insulation and honeycomb fields. It is a key national strategic material and an industry that the country focuses on supporting and developing. At present, the field of high-end aramid paper in my country is almost monopolized by foreign countries, and most of it relies mainly on imports. It is widely used in important areas of national economic development, such as high-temperature transformers, cables, wires and nuclear power equipment insulation; high-end electronic appliances and circuit boards; lightweight and rigid honeycomb parts for secondary stress parts such as aerospace, rail transit, yachts and ships, and building materials, as well as protective workwear fabrics for special fire protection, metallurgy, chemical industry, electricity, petroleum, and combat.
  • the purpose of the present invention is to provide a preparation method for high-performance aramid paper to make the paper surface stretch and flat after hot rolling, so as to solve the problem that after the aramid paper is subjected to high temperature and high pressure, there will be a certain range of deviations in thermal shrinkage, which will cause slight deformation of the paper surface, resulting in uneven winding or wrinkles.
  • the present invention provides the following technical solution: a method for preparing high-performance aramid paper to make the paper surface stretch and flat after hot rolling, comprising the following steps:
  • Sp1 Select aramid paper of different thicknesses and divide the aramid paper into thin paper and thick paper;
  • Sp2 hot rolling the aramid thin paper, observing and recording the surface flatness of the hot-rolled aramid thin paper; then, two guide rollers with adjustable upper and lower heights are arranged between the hot rolling mill and the winding frame, aramid thin paper of the same thickness is selected for hot rolling, and the hot-rolled aramid thin paper is brought into contact with the guide rollers, and the surface flatness of the hot-rolled aramid thin paper is observed and recorded, and finally the surface flatness of the aramid thin paper after the two hot rollings is compared;
  • Sp3 Hot-roll the aramid thick paper, observe and record the surface flatness of the hot-rolled aramid thick paper; then, two upper and lower height-adjustable guide rollers are set between the hot rolling mill and the winding frame, and aramid thick paper of the same thickness is selected for hot rolling. The hot-rolled aramid thick paper is brought into contact with the guide rollers, and the surface flatness of the hot-rolled aramid thick paper is observed and recorded. Finally, the surface flatness of the aramid thick paper after the two hot rollings is compared.
  • the thickness of thin paper is 0.04mm-0.08mm, and the basis weight is 24.5g/m2-63g/m2, and the thickness of thick paper is 0.13mm-0.38mm, and the basis weight is 115g/m2-360g/m2;
  • the present invention selects aramid papers of different thicknesses for testing respectively, and the influence of the guide rollers on the stretching and smoothing of the paper surface after hot rolling is obtained by comparing the test results.
  • a three-roller two-roll hot rolling mill is used to hot roll the aramid thin paper, the hot rolling temperature is 200-250° C., and the line pressure is 55-110 N/mm.
  • the aramid thin paper on the unwinding stand passes through the first lap roller, passes over the second lap roller near the entrance of the hot rolling mill conveying chamber, and then passes between the third hot roller and the second hot roller, and then passes between the second hot roller and the first hot roller, and then passes out of the first hot roller and passes between two fixed rollers, and finally passes through multiple lap rollers and is wound on the surface of the winding roller.
  • the stiffness and flatness of the surface of the aramid thin paper after hot rolling are observed, and the surface flatness of the aramid thin paper after hot rolling without adding guide rollers is used as a reference standard, and it is compared with the surface flatness of the aramid thin paper after hot rolling with the guide rollers added.
  • aramid thin paper of the same specification is selected, the aramid thin paper is passed through the first lap roller, passed over the second lap roller near the entrance of the hot rolling mill conveying chamber, and then the aramid thin paper is passed between the third hot roller and the second hot roller, and then between the second hot roller and the first hot roller, and then passes out of the first hot roller and passes between the two fixed rollers.
  • Two upper and lower height-adjustable guide rollers are provided between the hot rolling mill and the winding frame.
  • the height of the guide roller is adjusted to be above the height of the fixed roller, and the hot-rolled aramid thin paper is passed from the surface of the upper guide roller, passed through the bottom of the upper guide roller and passed out from the bottom of the lower guide roller, and finally passed through multiple lap rollers and wound on the surface of the winding roller, and the stiffness and flatness of the surface of the hot-rolled aramid thin paper are observed; the slight deformation of the paper surface of thin paper is greater than that of thick paper, so the contact surface with the adjustable guide roller is as large as possible, and the height of the guide roller is adjusted to be above the height of the fixed roller to increase the contact area between the aramid thin paper and the adjustable guide roller.
  • a three-roller two-roll hot rolling mill is used to hot-roll the aramid thick paper, the hot rolling temperature is 250-300° C., and the line pressure is 110-220 N/mm.
  • the aramid thick paper on the unwinding stand passes through the first lap roller, passes over the second lap roller near the entrance of the hot rolling mill conveying chamber, and then passes through between the third hot roller and the second hot roller, and then passes through between the second hot roller and the first hot roller, and then passes out of the first hot roller and passes between two fixed rollers, and finally passes through multiple lap rollers and is wound around the surface of the winding roller.
  • the stiffness and flatness of the surface of the aramid thick paper after hot rolling are observed, and the surface flatness of the aramid thick paper after hot rolling without adding guide rollers is used as a reference standard, and it is compared with the surface flatness of the aramid thick paper after hot rolling with the guide rollers added.
  • aramid thick paper of the same specification is selected, the aramid thick paper is passed through the first lap roller, passed over the second lap roller near the entrance of the hot rolling mill conveying chamber, and then the aramid thick paper is passed between the third hot roller and the second hot roller, and then between the second hot roller and the first hot roller, and then passes out of the first hot roller and passes between the two fixed rollers.
  • Two upper and lower height-adjustable guide rollers are provided between the hot rolling mill and the winding frame.
  • the height of the guide roller is adjusted to be below the height of the fixed roller, the hot-rolled aramid thick paper passes from the surface of the upper guide roller, and finally passes through multiple lap rollers and is wound on the surface of the winding roller, and the stiffness and flatness of the surface of the aramid thick paper after hot rolling are observed. As the thickness of the thick paper increases, the slight deformation of the paper surface also decreases.
  • the height of the guide roller is adjusted to be below the height of the fixed roller to reduce the contact area between the aramid thick paper and the adjustable guide roller.
  • the guide roller is adjusted to be divided into an upper roller and a lower roller, and the height of the upper roller and the lower roller is adjusted by a lifting device.
  • the height of the guide roller is adjusted multiple times to change the contact area between the guide roller and the hot-rolled aramid paper. The flatness of the aramid paper surface under different contact areas is observed and recorded, and the optimal contact area between the guide roller and the aramid thin paper after hot rolling and the aramid thick paper after hot rolling is found out respectively.
  • a pair of guide rollers capable of upward and downward displacement and multi-angle adjustment are added to the middle section of the winding machine after the aramid paper is hot-rolled to thread the paper, and aramid papers of different thicknesses are hot-rolled respectively.
  • the contact area between the aramid thin paper and the guide roller is changed by adjusting the guide roller, and the contact area between the aramid thick paper and the guide roller is changed.
  • a comparative test is performed, and it is found that adding a pair of guide rollers to thread the aramid paper of different thicknesses in the middle section of the winding machine after the hot rolling has a great influence on the stretching and smoothing of the paper, and the slight deformation of the paper surface of the aramid thin paper is greater than that of the aramid thick paper, and the contact area with the adjustable guide roller is as large as possible, so that the surface of the aramid thin paper after hot rolling is more stretched and smoothed. As the thickness of the thick paper increases, the slight deformation of the paper surface is reduced accordingly, and the contact area with the adjustable guide roller is as small as possible, so that the surface of the aramid thick paper after hot rolling is more stretched and smoothed.
  • FIG1 is a schematic diagram of hot rolling and winding and unwinding of aramid paper according to the present invention.
  • FIG2 is a schematic diagram of the aramid tissue paper of the present invention being wound and unwound through an adjustable guide roller;
  • FIG. 3 is a schematic diagram of the reeling and unreeling of the thick aramid paper of the present invention through an adjustable guide roller.
  • an embodiment of the present invention provides a method for preparing high-performance aramid paper to make the paper surface stretch and flat after hot rolling, comprising the following steps:
  • Sp1 Select aramid paper of different thicknesses and divide the aramid paper into thin paper and thick paper;
  • Sp2 hot rolling the aramid thin paper, observing and recording the surface flatness of the hot-rolled aramid thin paper; then, two guide rollers with adjustable upper and lower heights are arranged between the hot rolling mill and the winding frame, aramid thin paper of the same thickness is selected for hot rolling, and the hot-rolled aramid thin paper is brought into contact with the guide rollers, and the surface flatness of the hot-rolled aramid thin paper is observed and recorded, and finally the surface flatness of the aramid thin paper after the two hot rollings is compared;
  • Sp3 Hot-roll the aramid thick paper, observe and record the surface flatness of the hot-rolled aramid thick paper; then, two upper and lower height-adjustable guide rollers are set between the hot rolling mill and the winding frame, and aramid thick paper of the same thickness is selected for hot rolling. The hot-rolled aramid thick paper is brought into contact with the guide rollers, and the surface flatness of the hot-rolled aramid thick paper is observed and recorded. Finally, the surface flatness of the aramid thick paper after the two hot rollings is compared.
  • the thickness of thin paper is 0.04mm-0.08mm, the basis weight is 24.5g/m2-63g/m2, the thickness of thick paper is 0.13mm-0.38mm, the basis weight is 115g/m2-360g/m2.
  • Aramid paper of different thicknesses is in the middle section of the winder after hot rolling, if a pair of guide rollers are added to thread the paper, the stretching and flatness of the paper will be greatly affected.
  • the present invention selects aramid paper of different thicknesses for testing respectively, and the influence of the guide roller on the stretching and flatness of the paper surface after hot rolling of the aramid paper is obtained by comparing the test results.
  • a three-roller two-roll hot rolling mill is used to hot roll the aramid thin paper, the hot rolling temperature is 200-250°C, and the line pressure is 55-110N/mm.
  • the aramid thin paper on the unwinding stand passes through the first lap roller, passes over the second lap roller near the entrance of the hot rolling mill conveying chamber, and then passes between the third hot roller and the second hot roller, then passes between the second hot roller and the first hot roller, then passes out of the first hot roller and passes between two fixed rollers, and finally passes through multiple lap rollers and is wound on the surface of the winding roller.
  • the stiffness and flatness of the surface of the aramid thin paper after hot rolling are observed.
  • the surface flatness of the aramid thin paper after hot rolling without adding guide rollers is used as a reference standard, and it is compared with the surface flatness of the aramid thin paper after hot rolling with the guide roller added.
  • Select aramid thin paper of the same specification pass the aramid thin paper through the first lap roller, pass over the second lap roller near the entrance of the hot rolling mill conveying chamber, then pass the aramid thin paper between the third hot roller and the second hot roller, then pass between the second hot roller and the first hot roller, then pass out of the first hot roller and pass between the two fixed rollers.
  • Two guide rollers with upper and lower height adjustment are arranged between the hot rolling mill and the winding frame. Adjust the height of the guide roller to above the height of the fixed roller, and pass the hot-rolled aramid thin paper from the surface of the upper guide roller.
  • a three-roller two-roll hot rolling mill is used to hot roll the aramid thick paper, the hot rolling temperature is 250-300°C, and the line pressure is 110-220N/mm.
  • the aramid thick paper on the unwinding stand passes through the first lap roller, passes over the second lap roller near the entrance of the hot rolling mill conveying chamber, and then passes between the third hot roller and the second hot roller, and then passes between the second hot roller and the first hot roller, then passes out of the first hot roller and passes between two fixed rollers, and finally passes through multiple lap rollers and is wound on the surface of the winding roller.
  • the stiffness and flatness of the surface of the aramid thick paper after hot rolling are observed, and the surface flatness of the aramid thick paper after hot rolling without adding guide rollers is used as a reference standard, and it is compared with the surface flatness of the aramid thick paper after hot rolling with the guide rollers added.
  • Select aramid thick paper of the same specification pass the aramid thick paper through the first lap roller, pass over the second lap roller near the entrance of the hot rolling mill conveying chamber, then pass the aramid thick paper between the third hot roller and the second hot roller, then pass between the second hot roller and the first hot roller, then pass out of the first hot roller and pass between the two fixed rollers.
  • Two upper and lower height-adjustable guide rollers are arranged between the hot rolling mill and the winding frame. The height of the guide roller is adjusted to be below the height of the fixed roller.
  • the hot-rolled aramid thick paper passes through the surface of the upper guide roller, and finally passes through multiple lap rollers and is wound on the surface of the winding roller.
  • the stiffness and flatness of the surface of the aramid thick paper after hot rolling are observed. As the thickness of the thick paper increases, the slight deformation of the paper surface also decreases.
  • the height of the guide roller is adjusted to be below the height of the fixed roller to reduce the contact area between the aramid thick paper and the adjustable guide roller.
  • the stiffness and flatness of the surfaces of two rolls of aramid thick paper of the same thickness and specification are observed. The surface of the aramid thick paper in contact with the adjustable guide roller is more stretched and flat.
  • the adjustable guide roller is divided into an upper roller and a lower roller.
  • the height of the upper roller and the lower roller is adjusted by a lifting device.
  • the height of the guide roller is adjusted multiple times to change the contact area between the guide roller and the hot-rolled aramid paper.
  • the flatness of the aramid paper surface under different contact areas is observed and recorded, and the optimal contact area between the guide roller and the aramid thin paper after hot rolling and the aramid thick paper after hot rolling is found out.

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Abstract

一种高性能芳纶纸热轧后让纸面舒展平整的制备方法，包括：选取不同厚度的芳纶纸，将芳纶纸分为薄纸和厚纸，对芳纶薄纸与芳纶厚纸分别进行热轧，观察并记录其表面平整度，然后在热轧机与收卷架之间设置两根上下高度可调节导辊，调节导辊的高度，改变芳纶纸与导辊的接触面积，观察芳纶纸热轧后表面的平整度，与不增加导辊时芳纶纸热轧后表面的平整度进行对比，多次调节导辊的高度，改变导辊分别与芳纶薄纸、芳纶厚纸之间的接触面积，观察并记录不同接触面积下芳纶纸表面的平整度，找出芳纶薄纸、芳纶厚纸与导辊的最佳接触面积。

Description

一种高性能芳纶纸热轧后让纸面舒展平整的制备方法 技术领域
本发明属于芳纶纸制备技术领域，具体为一种高性能芳纶纸热轧后让纸面舒展平整的制备方法。
 背景技术
芳纶纸优越的电气性能、抗张强度和轻量化，被广泛应用到绝缘、蜂窝领域。属于国家关键战略性材料，是国家重点支持和发展的产业。目前，我国高端芳纶纸领域几乎被国外所垄断，大部分主要依靠进口，广泛应用于国民经济发展的重要领域，如高温变压器、电缆、导线和核动力设备绝缘领域；高端电子电器及线路板领域；航空航天、轨道交通、游艇舰船、建筑材料等轻量化大刚性次受力部分的蜂窝制件领域以及特种消防、冶金、化工、电力、石油、作战等防护工装面料领域。
现有技术中，在芳纶纸制备过程中需要经过热轧机的高温高压，使其实现高密度晶体转化，方能实现电气性能、抗张强度的优异性能，但在实际操作过程中，芳纶纸一旦经过高温高压后，受纸的定量、水分匀度、纸内纤维排列以及热轧辊交叉产生应力的影响，热收缩会存在一定范围的偏差使得纸面细微的变形，造成收卷不齐或产生折皱。
 发明内容
本发明的目的在于提供一种高性能芳纶纸热轧后让纸面舒展平整的制备方法，以解决芳纶纸经过高温高压后，热收缩会存在一定范围的偏差使得纸面细微的变形，造成收卷不齐或产生折皱的问题。
为了实现上述目的，本发明提供如下技术方案：一种高性能芳纶纸热轧后让纸面舒展平整的制备方法，包括以下步骤：
Sp1：选取不同厚度的芳纶纸，将芳纶纸分为薄纸和厚纸；
Sp2：对芳纶薄纸进行热轧，观察并记录热轧后的芳纶薄纸的表面平整度；然后在热轧机与收卷架之间设有两根上下高度可调节导辊，选取相同厚度的芳纶薄纸进行热轧，并且将热轧后的芳纶薄纸与导辊接触，观察并记录热轧后的芳纶薄纸的表面平整度，最后将两次热轧后的芳纶薄纸的表面平整度进行对比；
Sp3：对芳纶厚纸进行热轧，观察并记录热轧后的芳纶厚纸的表面平整度；然后在热轧机与收卷架之间设有两根上下高度可调节导辊，选取相同厚度的芳纶厚纸进行热轧，并且将热轧后的芳纶厚纸与导辊接触，观察并记录热轧后的芳纶厚纸的表面平整度，最后将两次热轧后的芳纶厚纸的表面平整度进行对比。
优选的，薄纸厚度在0.04mm-0.08mm，定量在24.5g/㎡-63g/㎡，厚纸厚度在0.13mm-0.38mm，定量在115g/㎡-360g/㎡；不同厚度的芳纶纸在热轧后到收卷机的中间一段，如增加一对导辊来穿纸对纸的舒展平整影响极大，对此本发明选取不同厚度的芳纶纸分别进行测试，通过测试结果对比得出导辊对芳纶纸热轧后的纸面的舒展平整的影响。
优选的，选用三辊二轧热轧机对芳纶薄纸进行热轧，热轧温度在200-250℃，线压力55-110N/mm。
优选的，将放卷架上的芳纶薄纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶薄纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶薄纸表面的挺度与平整度，以不增加导辊的芳纶薄纸热轧后表面平整度作为参照标准，将其与增加导辊后的芳纶薄纸热轧后表面平整度相比较。
优选的，选取同一规格的芳纶薄纸，将芳纶薄纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶薄纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，热轧机与收卷架之间设有两根上下高度可调节导辊，调节导辊的高度，将导辊高度调节至固定辊高度之上，将热轧后的芳纶薄纸从上导辊表面穿入，穿过上导辊底部从下导辊底部穿出，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶薄纸表面的挺度与平整度；簿纸的纸面细微形变大于厚纸，所以与调节导辊的接触面尽量偏大，将导辊高度调节至固定辊高度之上，增大芳纶薄纸与调节导辊的接触面积。
优选的，选用三辊二轧热轧机对芳纶厚纸进行热轧，热轧温度在250-300℃，线压力110-220N/mm。
优选的，将放卷架上的芳纶厚纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶厚纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶厚纸表面的挺度与平整度，以不增加导辊的芳纶厚纸热轧后表面平整度作为参照标准，将其与增加导辊后的芳纶厚纸热轧后表面平整度相比较。
优选的，选取同一规格的芳纶厚纸，将芳纶厚纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶厚纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，热轧机与收卷架之间设有两根上下高度可调节导辊，调节导辊的高度，将导辊高度调节至固定辊高度之下，将热轧后的芳纶厚纸从上导辊表面穿过，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶厚纸表面的挺度与平整度；厚纸因随厚度的增加，纸面细微形变也随之减小，将导辊高度调节至固定辊高度之下，减小芳纶厚纸与调节导辊接触面积。
优选的，调节导辊分为上辊与下辊，通过升降装置调节上辊与下辊的高度，多次调节导辊的高度，改变导辊与热轧后的芳纶纸之间的接触面积，观察并记录不同接触面积下芳纶纸表面的平整度，分别找出芳纶薄纸热轧后，芳纶厚纸热轧后与导辊的最佳接触面积。
本发明的有益效果如下：
本发明中，通过在芳纶纸热轧后到收卷机的中间一段增加一对可上下位移多角度调节导辊来穿纸，分别对不同厚度的芳纶纸进行热轧，并且通过调节导辊改变芳纶薄纸与导辊的接触面积，改变芳纶厚纸与导辊的接触面积，进行对比测试，发现不同厚度的芳纶纸在热轧后到收卷机的中间一段，如增加一对导辊来穿纸对纸的舒展平整影响极大，并且芳纶簿纸的纸面细微形变大于芳纶厚纸，与调节导辊的接触面尽量偏大，使热轧后的芳纶薄纸表面更加舒展和平整，厚纸因随厚度的增加，纸面细微形变也随之减小，与调节导辊的接触面尽量偏小，使热轧后的芳纶厚纸表面更加舒展和平整。
 附图说明
图1为本发明的芳纶纸热轧及收放卷示意图；
图2为本发明的芳纶薄纸经过可调导辊的收放卷示意图；
图3为本发明的芳纶厚纸经过可调导辊的收放卷示意图。
 实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1至图3所示，本发明实施例提供了一种高性能芳纶纸热轧后让纸面舒展平整的制备方法，包括以下步骤：
Sp1：选取不同厚度的芳纶纸，将芳纶纸分为薄纸和厚纸；
Sp2：对芳纶薄纸进行热轧，观察并记录热轧后的芳纶薄纸的表面平整度；然后在热轧机与收卷架之间设有两根上下高度可调节导辊，选取相同厚度的芳纶薄纸进行热轧，并且将热轧后的芳纶薄纸与导辊接触，观察并记录热轧后的芳纶薄纸的表面平整度，最后将两次热轧后的芳纶薄纸的表面平整度进行对比；
Sp3：对芳纶厚纸进行热轧，观察并记录热轧后的芳纶厚纸的表面平整度；然后在热轧机与收卷架之间设有两根上下高度可调节导辊，选取相同厚度的芳纶厚纸进行热轧，并且将热轧后的芳纶厚纸与导辊接触，观察并记录热轧后的芳纶厚纸的表面平整度，最后将两次热轧后的芳纶厚纸的表面平整度进行对比。
薄纸厚度在0.04mm-0.08mm，定量在24.5g/㎡-63g/㎡，厚纸厚度在0.13mm-0.38mm，定量在115g/㎡-360g/㎡。不同厚度的芳纶纸在热轧后到收卷机的中间一段，如增加一对导辊来穿纸对纸的舒展平整影响极大，对此本发明选取不同厚度的芳纶纸分别进行测试，通过测试结果对比得出导辊对芳纶纸热轧后的纸面的舒展平整的影响。
选用三辊二轧热轧机对芳纶薄纸进行热轧，热轧温度在200-250℃，线压力55-110N/mm。
将放卷架上的芳纶薄纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶薄纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶薄纸表面的挺度与平整度。以不增加导辊的芳纶薄纸热轧后表面平整度作为参照标准，将其与增加导辊后的芳纶薄纸热轧后表面平整度相比较。
选取同一规格的芳纶薄纸，将芳纶薄纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶薄纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，热轧机与收卷架之间设有两根上下高度可调节导辊，调节导辊的高度，将导辊高度调节至固定辊高度之上，将热轧后的芳纶薄纸从上导辊表面穿入，穿过上导辊底部从下导辊底部穿出，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶薄纸表面的挺度与平整度；簿纸的纸面细微形变大于厚纸，所以与调节导辊的接触面尽量偏大，将导辊高度调节至固定辊高度之上，增大芳纶薄纸与调节导辊的接触面积，观察两卷同厚度同规格的芳纶薄纸表面的挺度与平整度，与可调节导辊接触的芳纶薄纸表面更加舒展，平整。
选用三辊二轧热轧机对芳纶厚纸进行热轧，热轧温度在250-300℃，线压力110-220N/mm。
将放卷架上的芳纶厚纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶厚纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶厚纸表面的挺度与平整度，以不增加导辊的芳纶厚纸热轧后表面平整度作为参照标准，将其与增加导辊后的芳纶厚纸热轧后表面平整度相比较。
选取同一规格的芳纶厚纸，将芳纶厚纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶厚纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，热轧机与收卷架之间设有两根上下高度可调节导辊，调节导辊的高度，将导辊高度调节至固定辊高度之下，将热轧后的芳纶厚纸从上导辊表面穿过，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶厚纸表面的挺度与平整度；厚纸因随厚度的增加，纸面细微形变也随之减小，将导辊高度调节至固定辊高度之下，减小芳纶厚纸与调节导辊接触面积，观察两卷同厚度同规格的芳纶厚纸表面的挺度与平整度，与可调节导辊接触的芳纶厚纸表面更加舒展和平整。
调节导辊分为上辊与下辊，通过升降装置调节上辊与下辊的高度，多次调节导辊的高度，改变导辊与热轧后的芳纶纸之间的接触面积，观察并记录不同接触面积下芳纶纸表面的平整度，分别找出芳纶薄纸热轧后，芳纶厚纸热轧后与导辊的最佳接触面积。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (9)

  1. 一种高性能芳纶纸热轧后让纸面舒展平整的制备方法，其特征在于：包括以下步骤：
    Sp1：选取不同厚度的芳纶纸，将芳纶纸分为薄纸和厚纸；
    Sp2：对芳纶薄纸进行热轧，观察并记录热轧后的芳纶薄纸的表面平整度；然后在热轧机与收卷架之间设有两根上下高度可调节导辊，选取相同厚度的芳纶薄纸进行热轧，并且将热轧后的芳纶薄纸与导辊接触，观察并记录热轧后的芳纶薄纸的表面平整度，最后将两次热轧后的芳纶薄纸的表面平整度进行对比；
    Sp3：对芳纶厚纸进行热轧，观察并记录热轧后的芳纶厚纸的表面平整度；然后在热轧机与收卷架之间设有两根上下高度可调节导辊，选取相同厚度的芳纶厚纸进行热轧，并且将热轧后的芳纶厚纸与导辊接触，观察并记录热轧后的芳纶厚纸的表面平整度，最后将两次热轧后的芳纶厚纸的表面平整度进行对比。
  2. 根据权利要求1所述的一种芳纶纸热轧后让纸面舒展平整的制备方法，其特征在于：薄纸厚度在0.04mm-0.08mm，定量在24.5g/㎡-63g/㎡，厚纸厚度在0.13mm-0.38mm，定量在115g/㎡-360g/㎡。
  3. 根据权利要求1所述的一种高性能芳纶纸热轧后让纸面舒展平整的制备方法，其特征在于：选用三辊二轧热轧机对芳纶薄纸进行热轧，热轧温度在200-250℃，线压力55-110N/mm。
  4. 根据权利要求3所述的一种芳纶纸热轧后让纸面舒展平整的制备方法，其特征在于：将放卷架上的芳纶薄纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶薄纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶薄纸表面的挺度与平整度。
  5. 根据权利要求4所述的一种芳纶纸热轧后让纸面舒展平整的制备方法，其特征在于：选取同一规格的芳纶薄纸，将芳纶薄纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶薄纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，热轧机与收卷架之间设有两根上下高度可调节导辊，调节导辊的高度，将导辊高度调节至固定辊高度之上，将热轧后的芳纶薄纸从上导辊表面穿入，穿过上导辊底部从下导辊底部穿出，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶薄纸表面的挺度与平整度。
  6. 根据权利要求1所述的一种高性能芳纶纸热轧后让纸面舒展平整的制备方法，其特征在于：选用三辊二轧热轧机对芳纶厚纸进行热轧，热轧温度在250-300℃，线压力110-220N/mm。
  7. 根据权利要求6所述的一种芳纶纸热轧后让纸面舒展平整的制备方法，其特征在于：将放卷架上的芳纶厚纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶厚纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶厚纸表面的挺度与平整度。
  8. 根据权利要求7所述的一种芳纶纸热轧后让纸面舒展平整的制备方法，其特征在于：选取同一规格的芳纶厚纸，将芳纶厚纸通过第一搭辊，靠近热轧机输送腔进口处的第二搭辊上方经过，然后将芳纶厚纸穿过第三热辊与第二热辊之间，再穿过第二热辊与第一热辊之间，然后从第一热辊穿出并且从两根固定辊之间穿过，热轧机与收卷架之间设有两根上下高度可调节导辊，调节导辊的高度，将导辊高度调节至固定辊高度之下，将热轧后的芳纶厚纸从上导辊表面穿过，最后穿过多个搭辊缠绕在收卷辊表面，观察热轧后芳纶厚纸表面的挺度与平整度。
  9. 根据权利要求1所述的一种芳纶纸热轧后让纸面舒展平整的制备方法，其特征在于：调节导辊分为上辊与下辊，通过升降装置调节上辊与下辊的高度，多次调节导辊的高度，改变导辊与热轧后的芳纶纸之间的接触面积，观察并记录不同接触面积下芳纶纸表面的平整度，分别找出芳纶薄纸热轧后，芳纶厚纸热轧后与导辊的最佳接触面积。
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