All-steel radial tyre bead chafer, and preparation method thereof

A radial and tire technology, which is applied in the field of preparation of all-steel radial tire mouth guard rubber, can solve the problem of excessive heat generation of the rubber compound, reduce heat generation, improve aging resistance, and improve anti-vulcanization reversion performance. Effect

Inactive Publication Date: 2019-06-25
JIANGSU GENERAL SCI TECH
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional spigot protector design mainly uses natural rubber and high-cis-butadiene rubber together to improve the flex resistance of the rubber; it uses high-filling carbon black and high sulfur to improve the hardness and tear resistance of the rubber Performance, but high filling carbon black also brings the problem of excessive heat generation of the compound

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • All-steel radial tyre bead chafer, and preparation method thereof
  • All-steel radial tyre bead chafer, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of all-steel radial tire rim protection rubber, which adopts the following process steps, and the component ratio is calculated in parts by weight:

[0026] (1) One-stage mixing: 50 parts of natural rubber, 20 parts of high-cis-butadiene rubber, 10 parts of low-cis-butadiene rubber, 30 parts of carbon black N330, 3 parts of zinc oxide, pre-dispersed modified aramid Put 1 part of short fiber and 2 parts of 203 resin into BB430 type internal mixer for mastication, the pressure of the top bolt is 5.5MPa, the rotor speed is 50r / min, the temperature of debinding is 160°C, and the time is 100 seconds. For rubber mixing, the parking time should not be less than 8 hours;

[0027] (2) Two-stage mixing: the obtained first-stage compound rubber, 40 parts of carbon black N330, 4 parts of stearic acid, 1 part of anti-aging agent 4020, 1 part of anti-aging agent RD, 2 parts of aromatic oil, and 2 parts of protective wax Put it into a BB430 type internal mixer fo...

Embodiment 2

[0030] A preparation method of all-steel radial tire rim protection rubber, which adopts the following process steps, and the component ratio is calculated in parts by weight:

[0031] (1) One-stage mixing: 20 parts of natural rubber, 50 parts of high-cis-butadiene rubber, 20 parts of low-cis-butadiene rubber, 25 parts of carbon black N375, 6 parts of zinc oxide, modified aramid staple fiber Put 6 parts and 5 parts of 204 resin into BB430 type internal mixer for masticating, the upper bolt pressure is 5.5MPa, the rotor speed is 50r / min, the glue discharge temperature is 160℃, and the time is 100 seconds to obtain a mixed rubber , the parking time is not less than 8 hours;

[0032] (2) Two-stage mixing: the obtained first-stage mixed rubber, 55 parts of carbon black N375, 3 parts of stearic acid, 1 part of anti-aging agent 4020, 2 parts of anti-aging agent RD, 2 parts of anti-aging agent 3100, aromatic oil Put 6 parts and 1 part of protective wax into a BB430 type internal mix...

Embodiment 3

[0035] A preparation method of all-steel radial tire rim protection rubber, which adopts the following process steps, and the component ratio is calculated in parts by weight:

[0036] (1) One-stage mixing: 30 parts of natural rubber, 40 parts of high-cis-butadiene rubber, 30 parts of low-cis-butadiene rubber, 25 parts of carbon black N375, 4 parts of zinc oxide, modified aramid staple fiber Put 4 parts and 3 parts of KORESIN resin into BB430 type internal mixer for mastication, the pressure of the top bolt is 5.5MPa, the rotor speed is 50r / min, the discharge temperature is 160°C, and the time is 100 seconds to obtain a mixed rubber , the parking time is not less than 8 hours;

[0037] (2) Two-stage mixing: the obtained first-stage mixed rubber, 30 parts of carbon black N375, 2 parts of stearic acid, 1 part of anti-aging agent 4020, 1 part of anti-aging agent RD, 1 part of anti-aging agent 3100, naphthene Put 4 parts of oil and 1.2 parts of protective wax into a BB430 type in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an all-steel radial tyre bead chafer, and a preparation method thereof, and belongs to the technical field of rubber. The preparation method comprises following steps: naturalrubber, high cis butadiene rubber, low cis butadiene rubber, carbon black, an anti-aging agent, a tackifying resin, aramid staple fiber, a rubber filling oil, zinc oxide, stearic acid, a protective wax, a promoter, sulfur, an anti-reversion agent and an anti-scorching agent are subjected to first-stage mixing, second-stage mixing, and third-stage mixing so as to obtain the all-steel radial tyre bead chafer. The preparation method is capable of improving the high temperature aging resistance, wear resistance, flexing resistance, and cure reversion resistance of bead chafer of tyres in using process, reducing bead chafer heat generation, and prolonging the service life of tyres.

Description

technical field [0001] The invention relates to disclosing an all-steel radial tire rim protector, and also discloses a preparation method of an all-steel radial tire rim protector, which belongs to the technical field of rubber. Background technique [0002] The spigot protector is located at the bead position of the tire and directly contacts the rim, and mainly plays the role of protecting the carcass cord of the tire frame and the steel wire slit cloth. The bead position of the all-steel radial tire is the concentrated area that bears the load stress, and at the same time, the high-temperature area where frictional transmission of power is required between the bead cover and the rim generates frictional heat, so the bead cover needs to be used in a high-temperature and high-stress environment It has more excellent performance, and prevents the rapid decline in performance of the mouth protection rubber due to high temperature aging or tearing damage under high stress. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L77/10C08L91/00C08L91/06C08K13/02C08K3/04C08K3/22C08K5/09C08K5/39
Inventor 周平赵江华崔玉叶朱凉伟张洪学
Owner JIANGSU GENERAL SCI TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap