CN109666200A - A kind of tread mix and preparation method thereof of cut resistant steel radial tyre - Google Patents
A kind of tread mix and preparation method thereof of cut resistant steel radial tyre Download PDFInfo
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- CN109666200A CN109666200A CN201811584125.8A CN201811584125A CN109666200A CN 109666200 A CN109666200 A CN 109666200A CN 201811584125 A CN201811584125 A CN 201811584125A CN 109666200 A CN109666200 A CN 109666200A
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- styrene
- rubber
- butadiene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/007—Methods for continuous mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of tread mix and preparation method thereof of cut resistant steel radial tyre, which is mainly made of raw rubber and auxiliary agent, and the raw rubber is made of high combinated styrene content butadiene-styrene rubber and butadiene-styrene rubber.Preparation method includes: that rubber master batch is obtained after being kneaded butadiene-styrene rubber, high combinated styrene content butadiene-styrene rubber, zinc oxide, stearic acid, softening agent, carbon black, white carbon black, aromatic naphtha, after addition sulphur, promotor, anti-aging agent, antiscorching agent mill.The tread mix of steel radial tyre of the invention, part butadiene-styrene rubber is substituted by using high combinated styrene content butadiene-styrene rubber, the elasticity modulus of formula is improved by improving the content of styrene in sizing material, elastic energy storage when to make by external impacts reduces, increase hysteresis loss simultaneously, with better cut resistant, thorn resistance energy, the performance of various aspects is excellent in, should be widely promoted and applied.
Description
Technical field
The present invention relates to tyre production fields, a kind of tread mix in particular to cut resistant all-steel radial tire and
Preparation method.
Background technique
All-steel load-bearing radial tire, use scope is very wide, and bearing capacity is strong, puncture resistant, and vacuum tire surface is one layer
Top-quality rubber, appearance tension increases after inflation, and certain pressure is formed in inner surface, improves the self-styled ability to cut, and one
Denier punctures, and gas has all been let out in moment unlike common tire, can continue the regular hour, when having ensured high speed traveling
Safety.Super abrasive, vacuum tire wheel rim are bigger than common wheel diameter, not will receive the influence of brake rim heat under steam.By
In no inner tube of a tyre and lining band, tire is integrated with Wheel sealing, in vehicle when running at high speed, is produced by tire and pavement friction
Raw high temperature reduces tire temperature through the direct rapid heat dissipation speed of steel ring at internal (hot-air), to extend the service life of tire.Oil consumption
It is low.It is able to maintain preferable riding stability and lesser friction, be conducive to damping and improves speed.The polarization of belt is high,
The radial beat eccentricity of wheel is small, and resistance is small.Fuel oil 3% is thus saved, the vehicle of all-steel radial tyre, wearability, peace are used
Quan Xing, comfort, stability are all higher than using conventional tyre.Frequently as off-the-road tyre, mining tyres, long-distance card car wheel
Tire and short-distance truck tire use.
Since the use scope of steel radial tyre itself is than wide, make frequently as off-the-road tyre, mining tyres
With.But off-the-road tyre, mining tyres are often road surface is coarse, there are more turn and ramp, marsh, rubble time in road surface
It works under the severe road surface of cloth, under road conditions severe in this way, often causes the skidding of tire, punctures, damages and acutely grind
Damage, therefore off-the-road tyre, mining tyres must have the cut resistant of height, resistance to performance of stabbing that could guarantee longer use
Service life.It is also higher and higher to the loading demands of engineering machinery, mine vehicle with the development of the industries such as modern mining, building, this
So that the requirement to performances such as cut resistant, the resistance to punctures of tire tread also increases accordingly, needing to reach higher level could expire
The actual use of foot.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of tread mix of the steel radial tyre of cut resistant, the tread mix
Part butadiene-styrene rubber is substituted by using high combinated styrene content butadiene-styrene rubber, is improved by improving the content of styrene in sizing material
The elasticity modulus of formula, so that elastic energy storage when making by external impacts reduces, while increasing hysteresis loss, has more preferably
Cut resistant, thorn resistance energy, the performance of various aspects is excellent in, should be widely promoted and applied.
The second object of the present invention is to provide the preparation method of the tread mix of above-mentioned steel radial tyre, the preparation side
Method operating procedure is simple, and operating procedure is successive close, and operating condition is mild, substantially reduces the operating time, saves operation
Cost is conducive to subsequent further expansion application.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
The embodiment of the invention provides a kind of tread mixes of cut resistant steel radial tyre, mainly by raw rubber and auxiliary agent group
At the raw rubber is made of high combinated styrene content butadiene-styrene rubber and butadiene-styrene rubber.
Wherein, in the high combinated styrene content butadiene-styrene rubber, styrene quality accounts for the high combinated styrene content butadiene-styrene rubber
The 30-40wt% of gross weight；
Preferably, styrene quality accounts for the 31.5wt% of the high combinated styrene content butadiene-styrene rubber gross weight, in addition to this matter
Measuring percentage can also be 32wt%, 33wt%, 34wt%, 35wt%, 36wt% etc..
In the prior art, steel radial tyre use scope is very wide, uses frequently as off-the-road tyre, mining tyres.
But off-the-road tyre, mining tyres often road surface is coarse, there are more turn and ramp in road surface, marsh, rubble throughout
Severe road surface under work, under road conditions severe in this way, often cause the skidding of tire, puncture, damage and sharp wear,
Therefore off-the-road tyre, mining tyres must have the cut resistant of height, resistance to performance of stabbing that could guarantee longer to use the longevity
Life.Also higher and higher to the loading demands of engineering machinery, mine vehicle with the development of the industries such as modern mining, building, this makes
It obtains and the performance requirements such as cut resistant, the resistance to puncture of tire tread is also increased accordingly.
In order to solve the above-mentioned technical problem the present invention, meets higher requirement in terms of the cut resistant of steel radial tyre, mentions
For a kind of tread mix of cut resistant suitable for steel radial tyre, the tread mix is by using high combinated styrene content butylbenzene
Rubber substitutes part butadiene-styrene rubber, the elasticity modulus of formula is improved by improving the content of styrene in sizing material, to make
Elastic energy storage when by external impacts reduces, while increasing hysteresis loss, has better cut resistant, thorn resistance energy, from
And Life of Tyre can be extended by improving all-steel radial tyre made of sizing material of the present invention.
Butadiene-styrene rubber itself is as made of styrene and polymerizing butadiene, and styrene contains in general common butadiene-styrene rubber
Amount is all 23.5wt% or so, and in butadiene-styrene rubber of the present invention, the content of styrene has maintained 30-40wt%, most
In 31.5wt%, the content by improving styrene has the elasticity modulus for the tread mix being prepared for excellent content control
It significantly improves, while the otherwise performance of sizing material is also more excellent.
The formula of above-mentioned tread mix is only applicable to steel radial tyre, and especially also added in formula a certain amount of
White carbon black, white carbon black preferably selects the relatively good white carbon black of dispersibility, more advantageous after adding a certain amount of white carbon black
In the mixed homogeneity of each component, so that the performance for the tread mix being prepared is more excellent.
Preferably as further enforceable mode, the high combinated styrene content fourth containing 10-80wt% in the raw rubber
Benzene rubber, surplus are butadiene-styrene rubber.
Preferably as further enforceable mode, the high combinated styrene content fourth containing 30-60wt% in the raw rubber
Benzene rubber, surplus are butadiene-styrene rubber, carry out 5 with being optimal formula with this dosage between the two, and performance is also most excellent,
The performance of cut resistant effect is most significant.
Preferably as further enforceable mode, the auxiliary agent include: in terms of mass fraction, 30-40 parts of carbon black,
5-35 parts of white carbon black, 2-3 parts of zinc oxide, 1-5 parts of stearic acid, 1-5 parts of anti-aging agent, 3-5 parts of softening agent, 3-5 parts of aromatic naphtha, sulphur
1-2 parts, 0.5-4 parts of promotor and 0.1-0.3 parts of antiscorching agent.
Preferably as further enforceable mode, in terms of mass fraction, 35 parts of carbon black, 10 parts of white carbon black, zinc oxide
2.5 parts, 2 parts of stearic acid, 4 parts of anti-aging agent, 4 parts of softening agent, 4 parts of aromatic naphtha, 1.5 parts of sulphur, 3 parts of promotor and antiscorching agent 0.2
Part.
The embodiment of the present invention additionally provides the preparation side of above-mentioned tread mix in addition to providing the formula of above-mentioned tread mix
Method includes the following steps:
By butadiene-styrene rubber, high combinated styrene content butadiene-styrene rubber, zinc oxide, stearic acid, softening agent, white carbon black, carbon black, aromatic hydrocarbons
Oil obtains rubber master batch after being kneaded, after adding sulphur, promotor, anti-aging agent, antiscorching agent mill.
Preferably as further enforceable mode, butadiene-styrene rubber, high combinated styrene content butadiene-styrene rubber are kneaded 40-
It after 60s, then adds after zinc oxide, stearic acid, softening agent be kneaded 50-60s, finally adds white carbon black, carbon black, aromatic naphtha are kneaded again
After 40-60s, bolt is mentioned, obtains rubber master batch after pressing bolt 60-70s.
Preferably as further enforceable mode, mixing carries out in mixer, and the revolving speed control of mixer exists
Between 50-100rpm.
More preferably, the revolving speed of mixer controls between 75-95rpm.
Preferably as further enforceable mode, mill carries out in open mill, the preliminary roller revolving speed control of open mill
Between 20-30rpm, back roller revolving speed is controlled between 10-20rpm.
More preferably, between open mill preliminary roller revolving speed 22-25rpm, between back roller revolving speed 15-18rpm.
Preferably as further enforceable mode, the roller temperature of open mill is controlled between 50-70 DEG C.
More preferably, the roller temperature of open mill controls between 53-60 DEG C.
Above-mentioned preparation method operating procedure is simple, and operating procedure is successive close, and operating condition is mild, substantially reduces
Operating time saves operating cost, is conducive to subsequent further expansion application.
Actual mechanical process can carry out in accordance with the following steps:
Milling maternal rubber: setting banbury rotating speed is 85prm, and butadiene-styrene rubber, high combinated styrene content fourth are added in mixer
Zinc oxide, stearic acid, softening agent is added after being kneaded 55 seconds in benzene rubber, is kneaded to 115 seconds, white carbon black, carbon black, aromatic naphtha is added,
It is kneaded to 165 seconds, mentions bolt, then press bolt to discharge after 235 seconds up to rubber master batch；
Finished composition is kneaded: setting open mill preliminary roller revolving speed 22rpm, back roller revolving speed 18rpm, roller temperature is 55 DEG C, in open mill
Middle addition rubber master batch, sulphur, promotor, anti-aging agent, antiscorching agent Bao Tong 6 times, are beaten triangle bag 6 times, dumping is up to sizing material.
Compared with prior art, the invention has the benefit that
(1) tread mix of the steel radial tyre of cut resistant of the invention, by using high combinated styrene content butylbenzene rubber
Glue substitutes part butadiene-styrene rubber, and the content by improving styrene in sizing material improves the elasticity modulus of formula, thus make by
Elastic energy storage when to external impacts reduces, while increasing hysteresis loss, has better cut resistant, thorn resistance energy, each
The performance of aspect is excellent in, and be should be widely promoted and is applied；
(2) preparation method of the tread mix of steel radial tyre of the invention, operating procedure is simple, before and after operating procedure
Linking is close, and operating condition is mild, shortens the operating time, saves operating cost, is conducive to subsequent further expansion application.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
Embodiment 1-4, comparative example 1
The preparation method of the tread mix of cut resistant all-steel meridian tire tread carries out in accordance with the following steps:
Milling maternal rubber: setting banbury rotating speed is 85prm, and butadiene-styrene rubber, high combinated styrene content fourth are added in mixer
Zinc oxide, stearic acid, softening agent is added after being kneaded 55 seconds in benzene rubber, is kneaded to 115 seconds, white carbon black, carbon black, aromatic naphtha is added,
It is kneaded to 165 seconds, mentions bolt, then press bolt to discharge after 235 seconds up to rubber master batch；
Finished composition is kneaded: setting open mill preliminary roller revolving speed 22rpm, back roller revolving speed 18rpm, roller temperature is 55 DEG C, in open mill
Middle addition rubber master batch, sulphur, promotor, anti-aging agent, antiscorching agent Bao Tong 6 times, are beaten triangle bag 6 times, dumping is specifically matched up to sizing material
Side is carried out according to such as the following table 1.
1 sizing compound formula of table
In the high combinated styrene content butadiene-styrene rubber of above-described embodiment 1-4, styrene quality accounts for the high combinated styrene content fourth
Benzene rubber gross weight, embodiment 1 is 30wt%, embodiment 2 is 40wt%, embodiment 3 is 35wt%, embodiment 4 is 31.5wt%.
Comparative example 2
The cut resistant oblique wheel that the scheme of embodiment 1 is prepared in specific embodiment in patent CN102585316A
Tire tread sizing material.
Comparative example 3
Concrete operation step and embodiment 4 are consistent, and only in high combinated styrene content butadiene-styrene rubber, styrene quality accounts for described
The 20wt% of high combinated styrene content butadiene-styrene rubber gross weight.
Embodiment 5
Specific formula and above-described embodiment 4 are consistent, and only specific preparation method carries out in accordance with the following steps:
Milling maternal rubber: setting banbury rotating speed is 50prm, and butadiene-styrene rubber, high combinated styrene content fourth are added in mixer
Zinc oxide, stearic acid, softening agent is added after being kneaded 40 seconds in benzene rubber, is kneaded to 100 seconds, white carbon black, carbon black, aromatic naphtha is added,
It is kneaded to 170 seconds, mentions bolt, then press bolt to discharge after 230 seconds up to rubber master batch；
Finished composition is kneaded: setting open mill preliminary roller revolving speed 20rpm, back roller revolving speed 10rpm, roller temperature is 50 DEG C, in open mill
Middle addition rubber master batch, sulphur, promotor, anti-aging agent, antiscorching agent Bao Tong 6 times, are beaten triangle bag 6 times, dumping is up to sizing material.
Embodiment 6
Specific formula and above-described embodiment 4 are consistent, and only specific preparation method carries out in accordance with the following steps:
Milling maternal rubber: setting banbury rotating speed is 100prm, and butadiene-styrene rubber, high combinated styrene content fourth are added in mixer
Zinc oxide, stearic acid, softening agent is added after being kneaded 60 seconds in benzene rubber, is kneaded to 110 seconds, white carbon black, carbon black, aromatic naphtha is added,
It is kneaded to 150 seconds, mentions bolt, then press bolt to discharge after 220 seconds up to rubber master batch；
Finished composition is kneaded: setting open mill preliminary roller revolving speed 30rpm, back roller revolving speed 20rpm, roller temperature is 50 DEG C, in open mill
Middle addition rubber master batch, sulphur, promotor, anti-aging agent, antiscorching agent Bao Tong 6 times, are beaten triangle bag 6 times, dumping is up to sizing material.
Embodiment 7
Specific formula and above-described embodiment 4 are consistent, and only specific preparation method carries out in accordance with the following steps:
Milling maternal rubber: setting banbury rotating speed is 80prm, and butadiene-styrene rubber, high combinated styrene content fourth are added in mixer
Zinc oxide, stearic acid, softening agent is added after being kneaded 70 seconds in benzene rubber, is kneaded to 110 seconds, white carbon black, carbon black, aromatic naphtha is added,
It is kneaded to 150 seconds, mentions bolt, then press bolt to discharge after 220 seconds up to rubber master batch；
Finished composition is kneaded: setting open mill preliminary roller revolving speed 25rpm, back roller revolving speed 13rpm, roller temperature is 50 DEG C, in open mill
Middle addition rubber master batch, sulphur, promotor, anti-aging agent, antiscorching agent Bao Tong 6 times, are beaten triangle bag 6 times, dumping is up to sizing material.
Experimental example 1
Sizing material is vulcanized into 60min at 151 DEG C, specific vulcameter data are as shown in table 2 below.
2 testing result of table
| Test parameter | Comparative example 1 | Comparative example 2 | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| T10 | 9.36 | 3.65 | 15.16 | 15.27 | 15.28 | 15.30 |
| T90 | 28.36 | 10.24 | 24.17 | 25.01 | 24.72 | 24.34 |
Experimental example 2
The physical property being respectively formulated is as shown in table 4.Conditions of vulcanization are as follows: vulcanize 60min at 151 DEG C.
The physical property of 3 vulcanizate of table compares
Work as conditions of vulcanization are as follows: 151 DEG C × 60min (after 100 DEG C × 48h aging), specific test result is as follows shown in table 4.
The physical property of 4 vulcanizate of table compares
After tread mix of the invention be can be seen that by matching to each component from above data, compared with
The bias tire of example 2 is compared, and elasticity is big, and wearability is also more excellent, and bearing capacity is strong, is not easy to be pierced, service life improves
30-50%, acquisition and the unique formula of the present invention and excellent preparation process of such effect are undivided.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from of the invention
Many other change and modification can be made in the case where spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of tread mix of cut resistant steel radial tyre, which is characterized in that be mainly made of raw rubber and auxiliary agent, the life
Glue is made of high combinated styrene content butadiene-styrene rubber and butadiene-styrene rubber；
In the high combinated styrene content butadiene-styrene rubber, styrene quality accounts for the 30- of the high combinated styrene content butadiene-styrene rubber gross weight
40wt%；
Preferably, styrene quality accounts for the 31.5wt% of the high combinated styrene content butadiene-styrene rubber gross weight.
2. tread mix according to claim 1, which is characterized in that the high combination in the raw rubber containing 10-80wt%
Styrene butadiene-styrene rubber, surplus are butadiene-styrene rubber.
3. tread mix according to claim 1, which is characterized in that the high combination in the raw rubber containing 30-60wt%
Styrene butadiene-styrene rubber, surplus are butadiene-styrene rubber.
4. tread mix according to claim 1, which is characterized in that the auxiliary agent includes: the carbon black in terms of mass fraction
30-40 parts, 5-35 parts of white carbon black, 2-3 parts of zinc oxide, 1-5 parts of stearic acid, 1-5 parts of anti-aging agent, 3-5 parts of softening agent, aromatic naphtha 3-
5 parts, 1-2 parts of sulphur, 0.5-4 parts of promotor and 0.1-0.3 parts of antiscorching agent.
5. tread mix according to claim 4, which is characterized in that in terms of mass fraction, 35 parts of carbon black, white carbon black 10
Part, 2.5 parts of zinc oxide, 2 parts of stearic acid, 4 parts of anti-aging agent, 4 parts of softening agent, 4 parts of aromatic naphtha, 1.5 parts of sulphur, 3 parts of promotor and
0.2 part of antiscorching agent.
6. the preparation method of the described in any item tread mixes of claim 1-5, which comprises the steps of:
Butadiene-styrene rubber, high combinated styrene content butadiene-styrene rubber, zinc oxide, stearic acid, softening agent, white carbon black, carbon black, aromatic naphtha are mixed
Rubber master batch is obtained after refining, after adding sulphur, promotor, anti-aging agent, antiscorching agent mill.
7. preparation method according to claim 6, which is characterized in that by butadiene-styrene rubber, high combinated styrene content butadiene-styrene rubber
Be kneaded 40-60s after, then add zinc oxide, stearic acid, softening agent be kneaded 50-60s after, finally add white carbon black, carbon black, aromatic hydrocarbons
After oil is kneaded 40-60s again, bolt is mentioned, obtains rubber master batch after pressing bolt 60-70s.
8. preparation method according to claim 6, which is characterized in that mixing carries out in mixer, the revolving speed of mixer
Control is between 50-100rpm.
9. preparation method according to claim 6, which is characterized in that mill carries out in open mill, the preliminary roller of open mill
Revolving speed controls between 20-30rpm, and back roller revolving speed controls between 10-20rpm.
10. preparation method according to claim 9, which is characterized in that the roller temperature of open mill controls between 50-70 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584125.8A CN109666200A (en) | 2018-12-24 | 2018-12-24 | A kind of tread mix and preparation method thereof of cut resistant steel radial tyre |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584125.8A CN109666200A (en) | 2018-12-24 | 2018-12-24 | A kind of tread mix and preparation method thereof of cut resistant steel radial tyre |
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| CN109666200A true CN109666200A (en) | 2019-04-23 |
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| CN201811584125.8A Pending CN109666200A (en) | 2018-12-24 | 2018-12-24 | A kind of tread mix and preparation method thereof of cut resistant steel radial tyre |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112646245A (en) * | 2020-12-22 | 2021-04-13 | 贵州轮胎股份有限公司 | Flame-retardant all-steel engineering radial tire tread rubber material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585316A (en) * | 2012-04-20 | 2012-07-18 | 贵州轮胎股份有限公司 | Cutting-resistant bias tire tread mix and preparation method thereof |
-
2018
- 2018-12-24 CN CN201811584125.8A patent/CN109666200A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585316A (en) * | 2012-04-20 | 2012-07-18 | 贵州轮胎股份有限公司 | Cutting-resistant bias tire tread mix and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112646245A (en) * | 2020-12-22 | 2021-04-13 | 贵州轮胎股份有限公司 | Flame-retardant all-steel engineering radial tire tread rubber material and preparation method thereof |
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Application publication date: 20190423 |
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| RJ01 | Rejection of invention patent application after publication |