Manufacturing method for aramid fiber/chinlon composite cord for aircraft tires

A technology for aviation tires and composite cords, applied in the field of tire cords, to achieve the effect of improving adhesion

Active Publication Date: 2014-01-08
ORIENTAL IND SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in view of the strength and elongation requirements of composite cords used in aviation tires, the preparation method of aramid nylon cords needs to be further improved, and the adhesion between the aramid nylon composite cords and rubber also needs to be improved

Method used

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  • Manufacturing method for aramid fiber/chinlon composite cord for aircraft tires
  • Manufacturing method for aramid fiber/chinlon composite cord for aircraft tires
  • Manufacturing method for aramid fiber/chinlon composite cord for aircraft tires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. The process parameters are as follows:

[0021] Table 1 Example 1 of the process parameters of a manufacturing method of aramid / nylon composite cords for aircraft tires

[0022]

[0023]

[0024] 2. The specific production process includes the following steps:

[0025] 1) Aramid raw silk and nylon raw silk blended twisted yarn: choose to use UT60 two-for-one twister to carry out blended twisting of aramid raw silk and nylon 66 raw silk. During the initial twisting, the twisting production is carried out according to the initial twisting process. There are three spindles, the raw silk of the two spindles is aramid raw silk, and the raw silk of the middle spindle is nylon 66 raw silk. According to the process parameters, the twist, the number of winding turns of the capstan, the height of the balloon, etc. are set. During the initial twisting, All the tensioners use flyers. When retwisting, select a spindle position and set parameters such as twist according to ...

Embodiment 2

[0030] 1. The process parameters are as follows:

[0031] Table 2 Example 2 of the process parameters of a manufacturing method of aramid / nylon composite cords for aircraft tires

[0032]

[0033]

[0034] 2. The specific production process includes the following steps:

[0035] 1) Aramid raw silk and nylon raw silk blended twisted yarn: choose to use UT60 two-for-one twister to carry out blended twisting of aramid raw silk and nylon 66 raw silk. During the initial twisting, the twisting production is carried out according to the initial twisting process. There are three spindles, the raw silk of the two spindles is aramid raw silk, and the raw silk of the middle spindle is nylon 66 raw silk. According to the process parameters, the twist, the number of winding turns of the capstan, the height of the balloon, etc. are set. During the initial twisting, All the tensioners use flyers. When retwisting, select a spindle position and set parameters such as twist according to ...

Embodiment 3

[0040] 1. The process parameters are as follows:

[0041] Table 3 Example 3 of a manufacturing method of aramid / nylon composite cords for aircraft tires

[0042]

[0043]

[0044]2. The specific production process includes the following steps:

[0045] 1) Aramid raw silk and nylon raw silk blended twisted yarn: choose to use UT60 two-for-one twister to carry out blended twisting of aramid raw silk and nylon 66 raw silk. During the initial twisting, the twisting production is carried out according to the initial twisting process. There are three spindles, the raw silk of the two spindles is aramid raw silk, and the raw silk of the middle spindle is nylon 66 raw silk. According to the process parameters, the twist, the number of winding turns of the capstan, the height of the balloon, etc. are set. During the initial twisting, The tensioner of the aramid raw yarn is a flyer, and the tensioner of the nylon 66 raw silk is a spindle bar. When re-twisting, select a spindle po...

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Abstract

The invention discloses a manufacturing method for an aramid fiber/chinlon composite cord for aircraft tires. The manufacturing method comprises the steps of 1), first twist: aramid fiber 1500D raw silk and chinlon (66) 1890D raw silk are mixed in the ratio of 2:1 for Z-directional first twist, the first twist is conducted through a two-for-one twister, three spindle positions are arranged, the chinlon (66) 1890D raw silk is arranged between two strands of aramid fiber raw silk, a spindle blade or a flyer is used as a tensioner, the adjusting range of the spindle blade is 0 to 9, the flyer range is 0 to 10, and the control range of a yarn storage angle is 360+/-90 degrees; 2) second twist: S-directional second twist is conducted on the strand obtained through the first twist; 3) gum dipping: gum dipping is conducted on the blended yarn obtained through the second twist through a two-bathing dipping method, the gum solution for one bathing process is 1% -10% epoxy resin glue, and the gum solution for the second bathing process is 1% - 10% sealed isocyanate glue. The adhesive force of the aramid fiber/chinlon composite cord manufactured through the manufacturing method for the aramid fiber/chinlon composite cord for the aircraft tires is measured to be larger than 180 N/cm through the H extraction method.

Description

technical field [0001] The invention relates to a tire cord, in particular to a cord for aviation tires. Background technique [0002] Aviation tires have always been known for their conservativeness, low meridianization rate, and slow application of new technologies and materials. In recent years, with the rapid development of the aerospace industry, the performance of aviation tires has also been greatly improved. In addition to coping with extreme conditions such as heavy load, high speed, large deformation, and high inflation pressure, aviation tires also need to be resistant to impact, puncture, and temperature rise. Strong centrifugal force and huge impact at the moment of landing. In addition, aviation tires must also require light weight. In short, the performance requirements for aviation tires can be described as extremely demanding. Aviation tires are composed of rubber and frame materials like other tires, and the role of frame materials is very important. S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/48D02G3/04D06M15/55D06M13/395D06M101/34D06M101/36
Inventor 李金山曹永怡
Owner ORIENTAL IND SUZHOU
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