CN106079190B - A kind of all-steel radial tire sulfuration process - Google Patents
A kind of all-steel radial tire sulfuration process Download PDFInfo
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- CN106079190B CN106079190B CN201610502554.0A CN201610502554A CN106079190B CN 106079190 B CN106079190 B CN 106079190B CN 201610502554 A CN201610502554 A CN 201610502554A CN 106079190 B CN106079190 B CN 106079190B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
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Abstract
The present invention relates to a kind of all-steel radial tire sulfuration process, high-temperature medium is passed through in vulcanizer capsule, raise tyre temperature and kept for a period of time, tire is set to complete vulcanization reaction by the heating vulcanization of two phases, the anti-wear performance of tire tread greatly improved, tensile strength, hardness are also improved, and Life of Tyre improves more than 25%；Reducing quality problems, the tire defect rates such as sidewall bubble, the tire shoulder bubble of tire appearance reduces by more than 23%.
Description
Technical field
The present invention relates to a kind of all-steel engineering machinery tyre vulcanizing, specifically, is related to a kind of all-steel radial tire sulphur
Chemical industry skill, belongs to field of rubber technology.
Background technology
The tire industry in China is started late, and initial stage, development speed was slow, fast with national economy since reform and opening-up
Speed, the trend of sustainable growth and economic globalization, tyre industry industry restructuring speed are accelerated, updating and upgrading of a product ability and
Synthesized competitiveness constantly strengthens.In this evolution, our tire research and development means and research and development ability are also very backward, advocating
In the competition for greatly developing environment-friendly type tire, energy-saving tyre, intelligent tire, we also lack the ability of sustainable development.
With understanding of the consumer to tire quality, tire client increasingly focused on the security performance of tire and using the longevity
Life, no longer relies solely on price alternatively foundation, so having higher pursuit to wear-resisting, the security performance of tire.At this
Under kind situation, high speed performance, security performance and the abrasion resistance and service life of tire are just particularly important.According to tire
Industry statistic, China's all-steel load-bearing radial tire be entirely on the basis of Importing Foreign Advanced Technology, by digest and assimilate with
And production domesticization innovation, gradually form the development model of oneself.Its main mode of production does not have big adjustment, and production technology includes
Banburying, extrusion, calendering, steel ring, severing, shaping and vulcanization, wherein sulfuration process are to determine the most essential steps of tyre performance.Wheel
Tire is except pursuing load-carrying ability, riding comfort, it is also necessary to has long service life, determines one of key issue of service life
It is how to improve tire wear performance.Sulfuration process determines tire tread rubber and vulcanizing system crosslink material characteristic, right
Improve tread-rubber anti-wear performance and play key effect.
Tire is the important component of automobile, support automobile all-mass and dynamic loading and transmit various power (drive
Power, brake force, steering force and side force etc.), it is important a support component and walking element.Tire is the fortune of automobile again
One of row material.Proportion is larger in automobile use cost.Therefore, analysis and research influence the factor of Life of Tyre,
Constantly improve tire wear, improve tire used mileage, the use cost for reducing automobile is most important.With running car road
The continuous improvement of situation, the continuous improvement of Tire production quality and structural strength, the improper damage of tire have obtained effective control
System and reduction.Therefore, the abrasion of tire tread has become the principal phenomena of damaged tyres.In tire rolling, because circumferentially being cut
Power and the effect of lateral shear force, cause mutual sliding, the friction between tire and road surface, make tread ply by mechanical stress, heat etc.
The comprehensive function of factor, strand occurs and is broken with cross linked chain, so as to cause the abrasion of tire tread.When study on tire pattern is less than
Safety depth（Generally 2 millimeters）When Life of Tyre terminate.Improving the anti-wear performance of tire tread rubber just can improve wheel
Tire service life and service efficiency.
At present, due to the limitation of vulcanizing equipment and process conditions, the physical property of all-steel radial tire tire tread is low, especially
It is anti-wear performance, tensile strength, difference of hardness, Life of Tyre is short, frequently goes out the problems such as the sidewall of tire appearance bubble, tire shoulder bubble
Existing, tire defect rate is high.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, there is provided a kind of all-steel radial tire sulfuration process, is greatly improved
The anti-wear performance of tire tread, tensile strength, hardness are also improved, and Life of Tyre improves more than 25%；Reduce wheel
Quality problems, the tire defect rates such as the sidewall of tire outward appearance is steeped, tire shoulder bubble reduce by more than 23%.
To solve the above problems, the present invention uses following technical scheme：A kind of all-steel radial tire sulfuration process, in vulcanizer
High-temperature medium is passed through in capsule, tyre temperature is raised and is kept for a period of time, tire is completed sulphur by the heating vulcanization of two phases
Change reaction.
A kind of all-steel radial tire sulfuration process, comprises the following steps：1st, phase heating vulcanization：Vulcanize induction rank including a phase
Section and a presulfurization stage phase；2nd, second phase heating vulcanization：Including second phase vulcanization induction period, the second stage of presulfurization stage and optimum cure
Stage.
The one phase heating vulcanization comprises the following steps：
（1）One phase vulcanized induction period：
180~220 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.6
MPa。
The one phase heating vulcanization comprises the following steps：
（2）The presulfurization stage one phase：
High-temperature medium import and export valve is kept to close, heat-insulation pressure keeping：When temperature drops below 170 DEG C, high temperature is opened
Medium entrance valve, is passed through high-temperature medium, when temperature is more than 170 DEG C, closes high-temperature medium imported valve, continues pressurize；Instead
Discontinuously it is passed through 180~220 DEG C of high-temperature mediums again to be allowed to circulate in capsule, totally 3~6 minutes.
The second phase heating vulcanization comprises the following steps：
（1）Second phase vulcanization induction period：
210~240 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.8
MPa。
The second phase heating vulcanization comprises the following steps：
（2）The second stage of presulfurization stage：
High-temperature medium exits and entrances valve is kept to close, heat-insulation pressure keeping：When temperature drops below 200 DEG C, high temperature is opened
Medium entrance valve, is passed through high-temperature medium, when temperature is more than 200 DEG C, closes high-temperature medium imported valve, continues pressurize；Instead
Discontinuously it is passed through 210~240 DEG C of high-temperature mediums again to be allowed to circulate in capsule, totally 2~5 minutes.
The second phase heating vulcanization comprises the following steps：
（3）The optimum cure stage：
High-temperature medium is no longer passed through in capsule, exits and entrances valve is closed, pressurize 7~45 minutes, tire vulcanize instead
Should, pressure is basically unchanged during this, and temperature drops to 110~120 DEG C.
The high-temperature medium is nitrogen and helium according to 5-6:The mixed gas of 2-3 volume ratios.
The present invention compared with prior art, has advantages below：
1st, the present invention improves the bridging property of tread-rubber and vulcanizing system material, so as to which tire tread greatly improved
Anti-wear performance, Akron abrasion loss 0.18cm3/1.61km, wear hardness are much higher by national standard, and anti-wear performance protrudes；
Tensile strength reaches as high as 24.9Mpa, and hardness is also improved, and Life of Tyre improves more than 25%.
2nd, the compactness of tread-rubber is enhanced, reduces the quality problems such as sidewall bubble, the tire shoulder bubble of tire appearance, tire
Defect rate reduces by more than 23%.
Technical scheme is described further with reference to embodiment.
Embodiment
A kind of embodiment 1, all-steel radial tire sulfuration process, high-temperature medium is passed through in vulcanizer capsule, makes tyre temperature
Raise and kept for a period of time, tire is completed vulcanization reaction by the heating vulcanization of two phases, specifically comprise the following steps：
1st, phase heating vulcanization：Vulcanize induction period and a presulfurization stage phase including a phase；
2nd, second phase heating vulcanization：Including second phase vulcanization induction period, the second stage of presulfurization stage and optimum cure stage.
1st, phase heating vulcanization comprises the following steps：
（1）One phase vulcanized induction period：
180~200 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.6
MPa；
（2）The presulfurization stage one phase：
High-temperature medium exits and entrances valve is kept to close, heat-insulation pressure keeping：When temperature drops below 170 DEG C, high temperature is opened
Medium entrance valve, is passed through high-temperature medium, when temperature is more than 170 DEG C, closes high-temperature medium imported valve, continues pressurize；Instead
Discontinuously it is passed through 180~220 DEG C of high-temperature mediums again to be allowed to circulate in capsule, totally 3~6 minutes；
High-temperature medium is nitrogen and helium according to 5:The mixed gas of 2 volume ratios.
2nd, second phase heating vulcanization comprises the following steps：
（1）Second phase vulcanization induction period：
220~230 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.8
MPa；
（2）The second stage of presulfurization stage：
High-temperature medium import and export valve is kept to close, heat-insulation pressure keeping：When temperature drops below 200 DEG C, high temperature is opened
Medium entrance valve, is passed through high-temperature medium, when temperature is more than 200 DEG C, closes high-temperature medium imported valve, continues pressurize；Instead
Discontinuously it is passed through 210~240 DEG C of high-temperature mediums again to be allowed to circulate in capsule, totally 2~5 minutes；
High-temperature medium is nitrogen and helium according to 5:The mixed gas of 2 volume ratios.
（3）The optimum cure stage：
High-temperature medium is no longer passed through in capsule, exits and entrances valve is closed, pressurize 7~45 minutes, tire vulcanize instead
Should, pressure is basically unchanged during this, and temperature drops to 110~120 DEG C.
Finally, valve is opened, takes out tire, completes vulcanization.
A kind of embodiment 2, all-steel radial tire sulfuration process, high-temperature medium is passed through in vulcanizer capsule, makes tyre temperature
Raise and kept for a period of time, tire is completed vulcanization reaction by the heating vulcanization of two phases, specifically comprise the following steps：
1st, phase heating vulcanization：Vulcanize induction period and a presulfurization stage phase including a phase；
2nd, second phase heating vulcanization：Including second phase vulcanization induction period, the second stage of presulfurization stage and optimum cure stage.
1st, phase heating vulcanization comprises the following steps：
（1）One phase vulcanized induction period：
200~210 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.6
MPa；
（2）The presulfurization stage one phase：
High-temperature medium exits and entrances valve is kept to close, heat-insulation pressure keeping：When temperature drops below 170 DEG C, high temperature is opened
Medium entrance valve, is passed through high-temperature medium, when temperature is more than 170 DEG C, closes high-temperature medium imported valve, continues pressurize；Instead
Discontinuously it is passed through 180~220 DEG C of high-temperature mediums again to be allowed to circulate in capsule, totally 3~6 minutes；
High-temperature medium is nitrogen and helium according to 6:The mixed gas of 3 volume ratios.
2nd, second phase heating vulcanization comprises the following steps：
（1）Second phase vulcanization induction period：
220~230 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.8
MPa；
（2）The second stage of presulfurization stage：
High-temperature medium import and export valve is kept to close, heat-insulation pressure keeping：When temperature drops below 200 DEG C, high temperature is opened
Medium entrance valve, is passed through high-temperature medium, when temperature is more than 200 DEG C, closes high-temperature medium imported valve, continues pressurize；Instead
Discontinuously it is passed through 210~240 DEG C of high-temperature mediums again to be allowed to circulate in capsule, totally 2~5 minutes；
High-temperature medium is nitrogen and helium according to 6:The mixed gas of 3 volume ratios.
（3）The optimum cure stage：
High-temperature medium is no longer passed through in capsule, exits and entrances valve is closed, pressurize 7~45 minutes, tire vulcanize instead
Should, pressure is basically unchanged during this, and temperature drops to 110~120 DEG C.
Finally, valve is opened, takes out tire, completes vulcanization.
A kind of embodiment 3, all-steel radial tire sulfuration process, high-temperature medium is passed through in vulcanizer capsule, makes tyre temperature
Raise and kept for a period of time, tire is completed vulcanization reaction by the heating vulcanization of two phases, specifically comprise the following steps：
1st, phase heating vulcanization：Vulcanize induction period and a presulfurization stage phase including a phase；
2nd, second phase heating vulcanization：Including second phase vulcanization induction period, the second stage of presulfurization stage and optimum cure stage.
1st, phase heating vulcanization comprises the following steps：
（1）One phase vulcanized induction period：
210~220 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.6
MPa；
（2）The presulfurization stage one phase：
High-temperature medium exits and entrances valve is kept to close, heat-insulation pressure keeping：When temperature drops below 170 DEG C, high temperature is opened
Medium entrance valve, is passed through high-temperature medium, when temperature is more than 170 DEG C, closes high-temperature medium imported valve, continues pressurize；Instead
Discontinuously it is passed through 180~220 DEG C of high-temperature mediums again to be allowed to circulate in capsule, totally 3~6 minutes；
High-temperature medium is nitrogen and helium according to 5.5:The mixed gas of 2.5 volume ratios.
2nd, second phase heating vulcanization comprises the following steps：
（1）Second phase vulcanization induction period：
230~240 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.8
MPa；
（2）The second stage of presulfurization stage：
High-temperature medium import and export valve is kept to close, heat-insulation pressure keeping：When temperature drops below 200 DEG C, high temperature is opened
Medium entrance valve, is passed through high-temperature medium, when temperature is more than 200 DEG C, closes high-temperature medium imported valve, continues pressurize；Instead
Discontinuously it is passed through 210~240 DEG C of high-temperature mediums again to be allowed to circulate in capsule, totally 2~5 minutes；
High-temperature medium is nitrogen and helium according to 5.5:The mixed gas of 2.5 volume ratios.
（3）The optimum cure stage：
High-temperature medium is no longer passed through in capsule, exits and entrances valve is closed, pressurize 7~45 minutes, tire vulcanize instead
Should, pressure is basically unchanged during this, and temperature drops to 110~120 DEG C.
Finally, valve is opened, takes out tire, completes vulcanization.
Description of test
According to national standard, physical property survey is carried out respectively to the tread rubber of all-steel radial tire sulfuration process of the present invention production
Examination, physical performance index see the table below 1.
（By taking 12.00R20 tires as an example)
Table 1
As can be seen from Table 1, the tensile strength of the tread rubber of all-steel radial tire sulfuration process production of the present invention reaches as high as
24.9Mpa, and Akron abrasion loss is 0.18cm3/ 1.61km, wear hardness are much higher by national standard, and anti-wear performance is dashed forward
Go out；In addition, hardness is also improved.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The skill of the industry
For art personnel it should be appreciated that the present invention is not limited to the above embodiments, described in above-described embodiment and specification is explanation
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (4)
- A kind of 1. all-steel radial tire sulfuration process, it is characterised in that：High-temperature medium is passed through in vulcanizer capsule, makes tyre temperature Raise and kept for a period of time, tire is completed vulcanization reaction by the heating vulcanization of two phases；Comprise the following steps：1st, phase heating vulcanization：Vulcanize induction period and a presulfurization stage phase including a phase；2nd, the second phase adds Temperature vulcanization：Including second phase vulcanization induction period, the second stage of presulfurization stage and optimum cure stage；The one phase heating vulcanization comprises the following steps：（1）One phase vulcanized induction period：180~220 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.6 Mpa；The one phase heating vulcanization comprises the following steps：（2）The presulfurization stage one phase：High-temperature medium import and export valve is kept to close, heat-insulation pressure keeping：When temperature drops below 170 DEG C, high-temperature medium is opened Imported valve, high-temperature medium is passed through, when temperature is more than 170 DEG C, closes high-temperature medium imported valve, continue pressurize；Between repeatedly It is passed through 180~220 DEG C of high-temperature mediums disconnectedly to be allowed to circulate in capsule, totally 3~6 minutes；The high-temperature medium is nitrogen and helium according to 5-6:The mixed gas of 2-3 volume ratios.
- A kind of 2. all-steel radial tire sulfuration process as claimed in claim 1, it is characterised in that：The second phase heating vulcanization includes Following steps：（1）Second phase vulcanization induction period：210~240 DEG C of high-temperature medium is passed through in tire curing capsule 1~3 minute, makes glue intraluminal pressure up to 2.8 MPa。
- A kind of 3. all-steel radial tire sulfuration process as claimed in claim 1, it is characterised in that：The second phase heating vulcanization includes Following steps：（2）The second stage of presulfurization stage：High-temperature medium exits and entrances valve is kept to close, heat-insulation pressure keeping：When temperature drops below 200 DEG C, high-temperature medium is opened Imported valve, high-temperature medium is passed through, when temperature is more than 200 DEG C, closes high-temperature medium imported valve, continue pressurize；Between repeatedly It is passed through 210~240 DEG C of high-temperature mediums disconnectedly to be allowed to circulate in capsule, totally 2~5 minutes.
- A kind of 4. all-steel radial tire sulfuration process as claimed in claim 1, it is characterised in that：The second phase heating vulcanization includes Following steps：（3）The optimum cure stage：High-temperature medium is no longer passed through in capsule, exits and entrances valve is closed, pressurize 7~45 minutes, tire is carried out vulcanization reaction, this During pressure be basically unchanged, temperature drops to 110~120 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502554.0A CN106079190B (en) | 2016-06-30 | 2016-06-30 | A kind of all-steel radial tire sulfuration process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610502554.0A CN106079190B (en) | 2016-06-30 | 2016-06-30 | A kind of all-steel radial tire sulfuration process |
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| CN106079190A CN106079190A (en) | 2016-11-09 |
| CN106079190B true CN106079190B (en) | 2018-03-30 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0520302B1 (en) * | 2005-07-29 | 2016-02-10 | Pirelli | method and apparatus for vulcanizing tire of vehicle wheels |
| CN102700035B (en) * | 2011-01-17 | 2014-09-24 | 潍坊跃龙橡胶有限公司 | Intermittent hot water circulation pressure stabilization insulation tyre vulcanization technology |
| JP5502040B2 (en) * | 2011-09-09 | 2014-05-28 | 株式会社神戸製鋼所 | Tire vulcanizing method and tire vulcanizing machine |
| CN102363339B (en) * | 2011-11-08 | 2014-04-02 | 双钱集团（如皋）轮胎有限公司 | Tyre rubber vulcanizing technology |
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