CN102626973A - Thinned carcass ply part used in radial tire - Google Patents
Thinned carcass ply part used in radial tire Download PDFInfo
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- CN102626973A CN102626973A CN2012101262021A CN201210126202A CN102626973A CN 102626973 A CN102626973 A CN 102626973A CN 2012101262021 A CN2012101262021 A CN 2012101262021A CN 201210126202 A CN201210126202 A CN 201210126202A CN 102626973 A CN102626973 A CN 102626973A
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- casingply
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- tire
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Abstract
The invention discloses a thinned carcass ply part used in a radial tire, including a carcass ply framework and a rubber overlying layer, the framework material being synthetic fiber ply material including nylon ply or polyester ply, the number of the ply being a single layer or a plurality of layers, and the rubber overlying layer is made of natural rubber or a mixture of natural rubber and synthetic rubber. According to radial tire carcass ply production technology, cord expansion, rolling and rubber applying are carried out to produce a standard-width thinned carcass ply sheet with the thickness of the rubber layer being 3-10% thinner than that of sheet made through traditional process, and then radiation prevulcanization processing is carried out on the thinned carcass ply sheet by adopting an electron accelerator irradiation device to prepare a thinned carcass ply part. The thinned carcass ply part used in a radial tire of the invention, provided with a thinned carcass ply structure, has the advantages of low consumption of rubber raw materials, high Green strength of rubber overlying materials, uniformity of the rubber layer and high stability of structure, thereby enabling greatly improved quality and performance of a produced tire, as well as suitability for preparation of a high-performance tire.
Description
Affiliated technical field
The present invention relates to processing of rubber tire and radiotechnology application, be specifically related to a kind of attenuate casingply parts that are used for radial.
Background technology
In recent years, the fast development of auto industry and highway constantly proposes new requirement to the tire manufacturing industry, along with improving constantly of automotive performance, requires tire quality and performance to match simultaneously.The meridian tyre body curtain cloth layer is stress frame layers of tire by covering the body piles that the glue cord fabric is formed, and has necessary strength and dimensional stability in order to guarantee tire, and each parts of support tire have withstand load, and are shock-resistant, the effect of internal pressure-resistant.Intensity that it had and elasticity can complicacy meet with stresses and repeatedly distortion when tire is used, and relax the vibration and the impact on external road surface.Tire in prior art prepares in the process, and novel light material preparation tyre element commonly used is done the casing ply framework material as substituting steel wire with aramid fiber, or replaced wire loop etc. with single winding aramid fiber.Deformation can take place in casingply in processing, transportation, moulding and final sulfuration typing; The skew or the distortion of cord appear, or the drawing back of glue between cord, for fear of these problems; Conventional solution is the glue amount of covering that increases cord ply; The thickness that this certainly will increase raw material consumption and these parts causes tire weight to increase, and quality of stability and safety in utilization also receive direct influence.In the development of following tire industry, the most urgent problem is Environmental compatibility and security and stability problem.How to pass through the technological innovation and the improvement of tyre industry, reduce noise, minimizing oil consumption, reduction tail gas pollution in the tire running; Through implementing new technology, guarantee the uniformity of tire building block glue-line simultaneously, realize that whole tire weight reduces, and still all plays important effect to usage safety performance to environmental protection.Thickness through attenuate tyre body curtain cloth layer parts can alleviate tire weight, thereby reduces the resistance to rolling of tire.The attenuating of resistance to rolling is directly fuel saving consumption not only, and data show: if tire drag reduces 25%, then fuel consumption can reduce 5%, also can alleviate exhaust emissions indirectly, is beneficial to environmental protection.The development of tyre element thinning technique not only depends on the research and development and the application of new material, also depends on the improvement of each modular construction design and processes technology.Under the prerequisite of guaranteeing the tire serviceability, a kind of thickness of attenuate tyre body curtain cloth layer parts is provided, thereby realizes the radial lightweight, be the embodiment of tire manufacturing technology level, also be the problem that current urgent need is is in the art researched and solved.
Summary of the invention
The purpose of this invention is to provide a kind ofly have attenuate casingply structure, the robber materials consumption is low; Component weight is light; Green's intensity of coating compound is high, the uniformity and the stability of structure of glue-line are strong, makes the whole tire loss of weight of tire and attenuate casingply parts that are used for radial that performance quality is greatly improved.
In order to achieve the above object; The present invention adopts following technical scheme: a kind of attenuate casingply parts that are used for radial; Comprise the casingply skeleton and cover glue-line; Be characterized in: framework material is the synthetic fibers cord tire, comprises nylon cord or polyester cord, and curtain cloth layer is a single or multiple lift; Covering glue-line is natural rubber or natural rubber and elastomeric blend; Carry out cord expansion, calendering and deposited glue according to meridian tyre body curtain cloth layer production technology, process the attenuate casingply sheet material of the normal width of this parts bondline thickness attenuate 3-10% that produces than traditional handicraft, attenuate casingply sheet material is fixed under the permanent tension traction bundle under the electron accelerator on the transmitting device; Adopt irradiation device for electronic accelerator that attenuate casingply sheet material is carried out the radiation presulfurization and handle, be prepared into attenuate casingply parts.
Above-mentioned described employing irradiation device for electronic accelerator carries out the radiation presulfurization to attenuate casingply sheet material to be handled, and is that transmitting device under the casingply sheet material transmitted beam is sent into the electron accelerator irradiation chamber, carries out radiation treatment; The electron accelerator beam energy is 0.3-3.0MeV; Beam intensity is 0.2-100mA, electron beam scanning width 0.6-1.0 rice, and casingply sheet material irradiation absorbed dose of radiation is 5-60kGy; Bundle lower device transmission speed is 4-60m/min; The irradiation atmosphere oxygen environment that exceeds adopts inert gas shielding, processes attenuate casingply parts after accomplishing radiation treatment.
Above-mentioned described irradiation device for electronic accelerator carries out the radiation presulfurization to attenuate casingply sheet material to be handled; Can outside the tire production line, build irradiation device for electronic accelerator in addition and get the radiation of glue realization off-line, also can on the tire production line, realize continuously at beta radiation by supporting irradiation device for electronic accelerator from the casingply production line.
Attenuate principle of the present invention is that the meridian tyre body curtain cloth layer also will bear certain ess-strain except in use bearing the bigger strain in the machine-shaping process.In the conventional tire production technology; Because parts half finished rubber intensity is not high; Leak outside for evading cord, come unglued and the not appearance of first-class problem of cord density between cord; And cause tire in use to produce early stage delamination or explosion, usually adopt the thickness that increases the parts glue-line, to guarantee safety.The present invention is under the prerequisite that does not reduce the tire combination property; Utilize rubber radiation pre-curing technology, that is: do not influence the original production technology of parts, just before the complete heat cure of parts; With electron beam parts are carried out radiation treatment; Make crosslinked that rubber molecule acquires a certain degree through changing irradiation parameters, realize the controllable part sulfuration of component materials, through improving Green's intensity of parts rubber; Guarantee the structural stability of intermediate products, preventing or reducing because of post-production is shifted, distortion is excessive, material creep flows influences product quality.Owing to rubber radiation pre-vulcanization process is arranged as technical guarantee, can implement the attenuate structural design to the casingply parts, both guaranteed the structural stability of parts, reach the parts loss of weight again, the whole light-weighted effect of tire.Compare attenuate casingply bondline thickness attenuate 3-10% with these parts that traditional handicraft is produced.
Through detecting, attenuate casing ply parts are through after the radiation treatment, and more radiation treatment is not greater than 200% for its Green's intensity, and attenuate casingply thickness is reduced to 2.0mm by the 2.2mm of common process, saves 0.15 kilogram of raw material.Through being compared with conventional tire, the tire of attenuate casingply parts preparation carries out performance compare test data such as following table:
| Project name | Attenuate carcass cord glue-line tire is compared with conventional tire |
| Tire weight | Loss of weight 1-10% |
| Dynamic balancing | Promote a grade or fair |
| Uniformity | Promote a grade or fair |
| High speed performance | Promote one or two grade |
| Resistance to rolling | Reduce 1-5% |
| Endurance quality | Meet specification requirement |
| Strength character | Meet specification requirement |
| Air-tightness | Meet specification requirement |
Be combined into attenuate casingply sheet material owing to adopted the synthetic fibers cord tire to roll deposited glue as framework material; And through irradiation device for electronic accelerator the casingply sheet material is carried out the technical scheme that radiation presulfurization Processing of Preparation becomes the casingply parts, the present invention can reach following effect: obviously improved Green's intensity of elastomeric material, rubber sheet is tentatively finalized the design; Reduce the generation of material deformation or mobile phenomenon; Guaranteed the stability of product technology, structure and performance, simultaneously, the whole tire weight saving 1-5% that produces by this parts attenuate; The dynamic balancing of tire, uniformity and high speed performance have certain lifting; Resistance to rolling reduces 1-3%, can effectively improve the performance quality of tire, has reached the object of the invention.
Description of drawings
Fig. 1 is a structural representation of the present invention
The specific embodiment
Embodiment: 215/75R14 radial
Below in conjunction with accompanying drawing the present invention is described in further detail: can find out structure of the present invention from Fig. 1; A kind of attenuate casingply parts that are used for radial; Comprise casingply skeleton 1 and cover glue-line 2; Casing ply skeleton 1 material is a synthetic fibers nylon cord tire, and curtain cloth layer is double-deck, covers the rubber of glue-line 2 for natural rubber or natural rubber and elastomeric blend; Add 5 parts sensitizer pentaerythritol triacrylate (PETA) respectively by the prescription of 100 mass parts, mix in the 50L banbury according to common process.Carry out cord expansion, calendering according to conventional casingply preparation technology, apply glue and rolling, make standard length and width, thickness and be 0.8 double-deck attenuate casingply parts sheet material.The casing ply parts are fixed under the bundle of electron accelerator on the transmitting device, carry out radiation treatment.The electron accelerator beam energy is 0.5MeV, and beam intensity is 60mA, 1.0 meters of electron beam scanning width; Casingply sheet material irradiation absorbed dose of radiation is 60kGy; The irradiation atmosphere oxygen environment that exceeds adopts nitrogen protection, processes attenuate casingply parts after accomplishing radiation treatment.The detection contrast of the tyre performance that tyre performance that attenuate casingply parts are processed and common process are processed, correction data sees the following form:
Testing result shows, the tire of attenuate casingply parts preparation, and its key property data obviously are superior to the tire of common process preparation.
Claims (5)
1. attenuate casingply parts that are used for radial; Comprise casingply skeleton (1) and cover glue-line (2); It is characterized in that: casing ply skeleton (1) material is the synthetic fibers cord tire, comprises nylon cord or polyester cord, and curtain cloth layer is a single or multiple lift; Covering glue-line (2) is natural rubber or natural rubber and elastomeric blend; Carry out cord expansion, calendering and deposited glue according to meridian tyre body curtain cloth layer production technology, process the attenuate casingply sheet material of the normal width of this parts bondline thickness attenuate 3-10% that produces than traditional handicraft, attenuate casingply sheet material is fixed under the permanent tension traction bundle under the electron accelerator on the transmitting device; Adopt irradiation device for electronic accelerator that attenuate casingply sheet material is carried out the radiation presulfurization and handle, be prepared into attenuate casingply parts.
2. according to the attenuate casingply parts of the said radial of claim 1; It is characterized in that: described employing irradiation device for electronic accelerator carries out the radiation presulfurization to attenuate casingply sheet material to be handled, and is that transmitting device under the casingply sheet material transmitted beam is sent into the electron accelerator irradiation chamber, carries out radiation treatment; The electron accelerator beam energy is 0.3-3.0MeV; Beam intensity is 0.2-100mA, electron beam scanning width 0.6-1.0 rice, and casingply sheet material irradiation absorbed dose of radiation is 5-60kGy; Bundle lower device transmission speed is 4-60m/min; The irradiation atmosphere oxygen environment that exceeds adopts inert gas shielding, processes attenuate casingply parts after accomplishing radiation treatment.
3. according to the attenuate casingply parts of the said radial of claim 1; It is characterized in that: said irradiation device for electronic accelerator carries out the radiation presulfurization to attenuate casingply sheet material to be handled; Can on the casingply production line, get glue and realize the off-line radiation through outside the tire production line, building irradiation device for electronic accelerator in addition.
4. according to the attenuate casingply parts of the said radial of claim 1; It is characterized in that: said irradiation device for electronic accelerator carries out the radiation presulfurization to attenuate casingply sheet material to be handled, and can on the tire production line, realize continuously at beta radiation by supporting accelerator irradiation device.
5. the attenuate casingply parts of radial are used to prepare radial in the rubber tyre manufacture field according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101262021A CN102626973A (en) | 2012-04-27 | 2012-04-27 | Thinned carcass ply part used in radial tire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101262021A CN102626973A (en) | 2012-04-27 | 2012-04-27 | Thinned carcass ply part used in radial tire |
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| CN102626973A true CN102626973A (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101262021A Pending CN102626973A (en) | 2012-04-27 | 2012-04-27 | Thinned carcass ply part used in radial tire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965312A (en) * | 2019-12-20 | 2020-04-07 | 中广核达胜加速器技术有限公司 | Method for improving adhesion between polyester cord and rubber coating rubber |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318385A (en) * | 2008-05-07 | 2008-12-10 | 北京市射线应用研究中心 | Radial tyre tyre case cord fabric layer component and manufacturing process |
| US20090020209A1 (en) * | 2006-03-08 | 2009-01-22 | Takao Wada | Rubber Composition for Carcass Ply and/or Belt, Carcass Ply and/or Belt Using Same and Preparation Process of Rubber Composition |
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2012
- 2012-04-27 CN CN2012101262021A patent/CN102626973A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090020209A1 (en) * | 2006-03-08 | 2009-01-22 | Takao Wada | Rubber Composition for Carcass Ply and/or Belt, Carcass Ply and/or Belt Using Same and Preparation Process of Rubber Composition |
| CN101318385A (en) * | 2008-05-07 | 2008-12-10 | 北京市射线应用研究中心 | Radial tyre tyre case cord fabric layer component and manufacturing process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965312A (en) * | 2019-12-20 | 2020-04-07 | 中广核达胜加速器技术有限公司 | Method for improving adhesion between polyester cord and rubber coating rubber |
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Application publication date: 20120808 |