CN115352225A - High-conductivity low-rolling-resistance structural tire and preparation method thereof - Google Patents
High-conductivity low-rolling-resistance structural tire and preparation method thereof Download PDFInfo
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- CN115352225A CN115352225A CN202210697173.8A CN202210697173A CN115352225A CN 115352225 A CN115352225 A CN 115352225A CN 202210697173 A CN202210697173 A CN 202210697173A CN 115352225 A CN115352225 A CN 115352225A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 215
- 239000012790 adhesive layer Substances 0.000 claims abstract description 181
- 238000005096 rolling process Methods 0.000 claims abstract description 80
- 239000003292 glue Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 117
- 239000006229 carbon black Substances 0.000 claims description 117
- 239000011159 matrix material Substances 0.000 claims description 18
- 230000003068 static effect Effects 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 abstract description 44
- 230000001070 adhesive effect Effects 0.000 abstract description 44
- 238000005299 abrasion Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Classifications
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- 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
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C19/08—Electric-charge-dissipating arrangements
-
- 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)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
-
- 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)
- B29D30/08—Building tyres
-
- 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
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C19/08—Electric-charge-dissipating arrangements
- B60C19/084—Electric-charge-dissipating arrangements using conductive carcasses
-
- 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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
-
- 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
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/14—Carcasses built-up with sheets, webs, or films of homogeneous material, e.g. synthetics, sheet metal, rubber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention relates to the technical field of tire manufacturing, in particular to a tire with a high-conductivity low-rolling-resistance structure and a preparation method thereof. The method comprises the following steps of firstly, processing, attaching and compacting a steel wire ring component, an air-tight layer material, a cord ply material and sidewall rubber to prepare a semi-finished green tire; step two, preparing a tire tread steel wire bundle belt layer and a cap belt strip layer, and applying a tire tread rubber component on the cap belt strip layer to obtain a tire tread component; step three, jointing the tread assembly with the semi-finished tire blank to obtain a complete tire blank, and vulcanizing the complete tire blank to obtain a finished tire; the tread rubber component comprises an insulating rubber layer, a conductive rubber layer and a base rubber layer; the conductive adhesive layer is a vertical structure and penetrates through the base adhesive layer and the insulating rubber layer, the cap strip layer is connected with the conductive adhesive layer, a conductive path is formed by the conductive adhesive (chimney adhesive) and the high-conductivity cap strip, the original base adhesive is replaced, and the high-conductivity requirement is met; the base glue can be adjusted in formula to realize low rolling resistance.
Description
Technical Field
The invention relates to the technical field of tire manufacturing, in particular to a tire with a high-conductivity low-rolling-resistance structure and a preparation method thereof.
Background
Most of automobile tires are made of rubber materials, the rubber belongs to insulating materials, most of conventional tire formulas use white carbon black, the resistivity is high, and static charges generated after the tire is in contact friction with the ground are easy to accumulate in the tire and are not easy to be led out. When a person in the automobile touches metal of the automobile after getting off the automobile once static electricity is generated in the driving process of the automobile, the static electricity brought by the automobile begins to discharge to the ground, and if the static electricity is not timely led out, potential safety hazards such as static electricity hitting people or fire disasters can be caused. Thereby causing a road safety accident.
In view of the electrostatic influence, especially in dry northern climates, vehicle static influences driving safety. Therefore, the host plant may have a resistance requirement for the passenger vehicle tires. Conductive rubber (chimney rubber) is added in the development and design of tires to meet the requirements of host factories on tire resistance.
The existing conductive structure design is realized by matching with the existing rolling resistance requirement of a host factory. With the attention on environmental protection, the rolling resistance of the tire is required to be continuously reduced, so that the consumption of white carbon black (poor conductivity) in the formula design is increased, and the conventional conductive structure has risks for realizing low rolling resistance and maintaining conductivity.
Disclosure of Invention
The application provides a tire with high conductivity and low rolling resistance structure and a preparation method, and by providing the high conductivity structure, the rolling resistance optimization space is expanded, the high conductivity is kept, and the problem that the risk of realizing low rolling resistance and keeping conductivity exists in the conventional tire conductivity structure is solved.
In some embodiments of the present application, the cap strip layer is connected to the conductive adhesive layer by penetrating the conductive adhesive layer through the base adhesive layer and the insulating rubber layer, so as to construct an electrostatic conductive path consisting of a vehicle → a rim → an abrasion-resistant adhesive → a sidewall → a cap strip → a conductive adhesive (chimney adhesive) → ground, thereby improving the conductivity of the tire.
In some embodiments of the present application, a dual conductive structure consisting of a vehicle → a rim → an abrasion-resistant adhesive → a sidewall → a base adhesive → a conductive adhesive (chimney adhesive) → ground and a vehicle → a rim → an abrasion-resistant adhesive → a sidewall → a cap strip → a conductive adhesive (chimney adhesive) → ground is constructed by a dual path conductive structure, and a high conductive property is maintained while a rolling resistance optimization space is expanded, and a lower rolling resistance ratio is obtained while a conductive property is improved.
In some embodiments of the application, the requirement of the tire on different rolling resistance rates can be met by dynamically monitoring the preparation process of the base rubber layer in real time, the contact area of the electric rubber layer and the cap belt layer is adjusted in real time, the conductivity of the tire is improved, and static electricity generated in the running process of a vehicle is better eliminated.
Some embodiments of the present application provide a method for preparing a tire with a high-conductivity low-rolling-resistance structure, comprising:
step one, processing, attaching and compacting a steel wire ring component, an air-tight layer material, a cord ply material and sidewall rubber to prepare a semi-finished tire blank;
step two, preparing a tire tread steel wire bundle belt layer and a cap belt strip layer, and applying a tire tread rubber component on the cap belt strip layer to obtain a tire tread component;
step three, jointing the tread assembly with the semi-finished tire blank to obtain a complete tire blank, and vulcanizing the complete tire blank to obtain a finished tire;
the tread rubber component comprises an insulating rubber layer, a conductive rubber layer and a base rubber layer;
the conductive rubber layer is of a vertical structure and penetrates through the base rubber layer and the insulating rubber layer, and the crown band layer is connected with the conductive rubber layer to form a conductive path.
In some embodiments of the present application, the process for preparing the tread rubber component is specifically:
presetting a tire rolling resistance grade matrix A, A (A1, A2, A3, A4), wherein A1 is a first tire rolling resistance preset grade; wherein A2 is a preset level of rolling resistance of the second tire; wherein A3 is a preset rolling resistance grade of the third tire; wherein A4 is a fourth tire rolling resistance preset grade; and A1< A2< A3< A4;
presetting a matrix B and B (B1, B2, B3 and B4) of the addition amount of the white carbon black of the base glue layer, wherein B1 is a first preset addition amount of the white carbon black of the base glue layer; b2 is a second preset adding amount of the white carbon black of the base glue layer; b3 is a first preset adding amount of the white carbon black of the base glue layer; b4 is a fourth preset adding amount of the white carbon black of the base glue layer; and B1< B2< B3< B4;
and setting the addition b of the white carbon black of the base rubber layer according to the rolling resistance grade a of the tire.
In some embodiments of the present application, the amount b of the white carbon black added to the base adhesive layer is specifically:
when the rolling resistance grade a of the tire is a first tire rolling resistance preset grade A1, setting the addition amount B of the white carbon black of the base rubber layer to be smaller than a first preset addition amount B1 of the white carbon black of the base rubber layer, namely B is smaller than B1;
when the rolling resistance grade a of the tire is a second rolling resistance preset grade A2, setting the adding amount B of the white carbon black of the base rubber layer to be between a first preset adding amount B1 of the white carbon black of the base rubber layer and a second preset adding amount B2 of the white carbon black of the base rubber layer, namely B1< B < B2;
when the rolling resistance grade a of the tire is a third rolling resistance preset grade A3, setting the addition amount B of the white carbon black of the base rubber layer to be between a second preset addition amount B2 of the white carbon black of the base rubber layer and a third preset addition amount B3 of the white carbon black of the base rubber layer, namely B2< B < B3;
when the tire rolling resistance grade a is a fourth tire rolling resistance preset grade A4, setting the adding amount B of the white carbon black of the base rubber layer to be between a third preset adding amount B3 of the white carbon black of the base rubber layer and a fourth preset adding amount B4 of the white carbon black of the base rubber layer, namely B3< B < B4.
In some embodiments of the present application, the process of preparing the tread rubber component further comprises:
presetting a width matrix C and C (C1, C2, C3 and C4) of the conductive adhesive layer, wherein C1 is the preset width value of the first conductive adhesive layer; c2 is a preset width value of the second conductive adhesive layer; c3 is a preset width value of the third conductive adhesive layer; c4 is a preset width value of the fourth conductive adhesive layer; and C1< C2< C3< C4;
presetting a tire tread width matrix D, (D1, D2, D3, D4), wherein D1 is a first tire tread width preset value; d2 is a preset value of the width of the second tire tread; d3 is a preset value of the tread width of the third tire; d4 is a preset value of the tread width of the fourth tire; and D1< D2< D3< D4;
the conductive gum layer width c is set based on the tire tread width d.
In some embodiments of the present application, the setting of the width c of the conductive adhesive layer specifically includes:
when the width D of the tire tread is lower than a first preset tire tread width value D1, namely D is smaller than D1, setting the width C of the conductive adhesive layer as a first preset conductive adhesive layer width value C1;
when the tire tread width D is between a first tire tread width preset value D1 and a third tire tread width preset value D2, namely D1< D < D2, setting the width C of the conductive adhesive layer as a second conductive adhesive layer width preset value C2;
when the tire tread width D is between the second tire tread width preset value D2 and the third tire tread width preset value D3, namely D2< D < D3, setting the width C of the conductive adhesive layer as a third conductive adhesive layer width preset value C3;
and when the tire tread width D is between the third tire tread width preset value D3 and the fourth tire tread width preset value D4, namely D3< D < D4, setting the width C of the conductive adhesive layer as a fourth conductive adhesive layer width preset value C4.
In some embodiments of the present application, the process of preparing the tread rubber component further comprises:
presetting conductive adhesive layer and crown band layer contact area matrixes E and E (E1, E2, E3 and E4), wherein E1 is a preset value of the contact area of the first conductive adhesive layer and the crown band layer; e2 is a preset value of the contact area of the second conductive adhesive layer and the cap band layer; e3 is a preset value of the contact area of the third conductive adhesive layer and the cap band layer; e4 is a preset value of the contact area of the fourth conductive adhesive layer and the crown band strip layer; and E1< E2< E3< E4;
and setting the contact area e of the conductive adhesive layer and the cap band layer according to the addition b of the white carbon black of the base adhesive layer.
In some embodiments of the present application, the contact area e between the conductive adhesive layer and the crown band strip layer is specifically set as follows:
the adding amount B of the white carbon black of the base adhesive layer is less than a first preset adding amount B1 of the white carbon black of the base adhesive layer, namely when B is less than B1, the preset value E1 of the contact area of the first conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer;
the adding amount B of the white carbon black of the base adhesive layer is between a first preset adding amount B1 of the white carbon black of the base adhesive layer and a second preset adding amount B2 of the white carbon black of the base adhesive layer, namely when B1 is more than B and less than B2, the preset value E2 of the contact area of the second conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer;
the adding amount B of the white carbon black of the base adhesive layer is between the second preset adding amount B2 of the white carbon black of the base adhesive layer and the third preset adding amount B3 of the white carbon black of the base adhesive layer, namely when B2 is more than B and less than B3, the preset value E3 of the contact area of the third conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer;
the adding amount B of the white carbon black of the base adhesive layer is between the third preset adding amount B3 of the white carbon black of the base adhesive layer and the fourth preset adding amount B4 of the white carbon black of the base adhesive layer, namely when B3 is more than B and less than B4, the preset value E4 of the contact area of the fourth conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer.
In some embodiments of the present application, the process of preparing the tread rubber component further comprises:
acquiring the white carbon black content of the base adhesive layer in real time, and dynamically adjusting the contact area of the conductive adhesive layer and the cap strip layer based on the white carbon black content of the base adhesive layer;
if the white carbon black content of the base adhesive layer obtained in real time is higher than the white carbon black addition matrix of the base adhesive layer, increasing the contact area of the conductive adhesive layer and the cap band layer;
and if the content of the white carbon black of the base adhesive layer obtained in real time is lower than the matrix of the addition amount of the white carbon black of the base adhesive layer, reducing the contact area of the conductive adhesive layer and the crown band strip layer.
In some embodiments of the present application, there is provided a high conductivity low rolling resistance structural tire, comprising:
the tire tread comprises a steel wire ring component, an airtight layer, a cord layer, a tire side, a tire tread rubber component, a tire tread steel wire bundle belt layer and a cap belt layer;
the side wall rubber component comprises an insulating rubber layer, a conductive rubber layer and a base rubber layer.
In some embodiments of the present application, the conductive adhesive layer is a chimney structure, the conductive adhesive layer is a vertical structure and penetrates through the base adhesive layer and the insulating rubber layer, and the cap strip layer is connected with the conductive adhesive layer for eliminating static electricity generated by the tire.
In some embodiments of the application, the conductive adhesive layer penetrates through the base adhesive layer and the insulating rubber layer, so that the cap strip layer is connected with the conductive adhesive layer, an electrostatic conductive path consisting of a vehicle → a rim → an abrasion-resistant adhesive → a sidewall → a cap strip → a conductive adhesive (chimney adhesive) → ground is constructed, and the conductive adhesive (chimney adhesive) and the high-conductivity cap strip form a conductive path to replace the original base adhesive for conduction, so that the high-conductivity requirement is met; the base glue can be adjusted in formula, so that low rolling resistance is realized.
The application selects the known specification 205/55R16 to perform trial production with the current tire, and designs the tread mouth plate. And after the tire is manufactured in a trial manner, a resistance comparison experiment is carried out, the resistance is reduced by 2 orders of magnitude, high conductivity is realized, and meanwhile, the rolling resistance is reduced by 0.3 per mill by adopting low rolling resistance base part glue in a new design.
Drawings
Fig. 1 is a flow chart of a method for manufacturing a tire with a high-conductivity low-rolling-resistance structure in a preferred embodiment of the present application.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1, a method for preparing a tire with a high-conductivity low-rolling-resistance structure according to a preferred embodiment of the present application includes:
step one, processing, attaching and compacting a steel wire ring component, an air-tight layer material, a cord ply material and sidewall rubber to prepare a semi-finished tire blank;
step two, preparing a tire tread steel wire bundle belt layer and a cap belt strip layer, and applying a tire tread rubber component on the cap belt strip layer to obtain a tire tread component;
step three, jointing the tread assembly with the semi-finished tire blank to obtain a complete tire blank, and vulcanizing the complete tire blank to obtain a finished tire;
the tread rubber component comprises an insulating rubber layer, a conductive rubber layer and a base rubber layer;
the conductive rubber layer is of a vertical structure and penetrates through the base rubber layer and the insulating rubber layer, and the crown band layer is connected with the conductive rubber layer to form a conductive path.
It can be understood that, in the above embodiments, the conductive adhesive layer penetrates through the base adhesive layer and the insulating rubber layer, so that the cap strip layer is connected to the conductive adhesive layer, and an electrostatic conductive path consisting of a vehicle → a rim → an abrasion-resistant adhesive → a sidewall → a cap strip → a conductive adhesive (chimney adhesive) → ground is constructed, so that the conductivity of the tire is improved, and the problem that the conductive structure cannot realize low rolling resistance and maintain the conductivity at the present stage is solved.
In some preferred embodiments of the present application, the preparation process of the tread rubber component is specifically as follows:
presetting a tire rolling resistance grade matrix A, A (A1, A2, A3, A4), wherein A1 is a first tire rolling resistance preset grade; wherein A2 is a preset level of rolling resistance of the second tire; wherein A3 is a preset rolling resistance grade of the third tire; wherein A4 is the preset level of the rolling resistance of the fourth tire; and A1< A2< A3< A4;
presetting a matrix B and B (B1, B2, B3 and B4) of the addition amount of the white carbon black of the base glue layer, wherein B1 is a first preset addition amount of the white carbon black of the base glue layer; b2 is a second preset adding amount of the white carbon black of the base glue layer; b3 is a first preset adding amount of the white carbon black of the base glue layer; b4 is a fourth preset adding amount of the white carbon black of the base glue layer; and B1< B2< B3< B4;
and setting the addition b of the white carbon black of the base rubber layer according to the rolling resistance grade a of the tire.
It can be understood that, in the above embodiments, by setting the relationship between the rolling resistance level of the tire and the addition amount of the white carbon black in the base rubber layer, the requirements of different tires on rolling resistance rates are met, the production efficiency of the tire is improved, and the rolling resistance of the tire is reduced.
In some preferred embodiments of the present application, the setting of the white carbon black addition amount b of the base glue layer specifically includes:
when the rolling resistance grade a of the tire is a first tire rolling resistance preset grade A1, setting the addition amount B of the white carbon black of the base rubber layer to be smaller than a first preset addition amount B1 of the white carbon black of the base rubber layer, namely B is smaller than B1;
when the rolling resistance grade a of the tire is a second rolling resistance preset grade A2, setting the adding amount B of the white carbon black of the base rubber layer to be between a first preset adding amount B1 of the white carbon black of the base rubber layer and a second preset adding amount B2 of the white carbon black of the base rubber layer, namely B1< B < B2;
when the rolling resistance grade a of the tire is a third rolling resistance preset grade A3, setting the addition amount B of the white carbon black of the base rubber layer to be between a second preset addition amount B2 of the white carbon black of the base rubber layer and a third preset addition amount B3 of the white carbon black of the base rubber layer, namely B2< B < B3;
when the tire rolling resistance grade a is a fourth tire rolling resistance preset grade A4, setting the adding amount B of the white carbon black of the base rubber layer to be between a third preset adding amount B3 of the white carbon black of the base rubber layer and a fourth preset adding amount B4 of the white carbon black of the base rubber layer, namely B3< B < B4.
It can be understood that, in the above embodiment, by setting the relationship between the rolling resistance grade of the tire and the addition amount of the white carbon black in the base rubber layer, the rolling resistance rate of the tire is reduced by increasing the addition amount of the white carbon black in the base rubber layer, the requirements of different tires on the rolling resistance rate are met, the production efficiency of the tire is increased, and the rolling resistance of the tire is reduced.
In some preferred embodiments of the present application, the process of preparing the tread rubber component further comprises:
presetting a width matrix C and C (C1, C2, C3 and C4) of the conductive adhesive layer, wherein C1 is the preset width value of the first conductive adhesive layer; c2 is a preset width value of the second conductive adhesive layer; c3 is a preset width value of the third conductive adhesive layer; c4 is a preset width value of the fourth conductive adhesive layer; and C1< C2< C3< C4;
presetting a tire tread width matrix D, (D1, D2, D3 and D4), wherein D1 is a first tire tread width preset value; d2 is a preset value of the width of the second tire tread; d3 is a preset value of the tread width of the third tire; d4 is a preset value of the tread width of the fourth tire; and D1< D2< D3< D4;
the conductive gum layer width c is set based on the tire tread width d.
It can be understood that, in the above embodiments, the width of the conductive rubber layer is set based on the tire tread width, since the larger the tire tread width is, the more static electricity generated in the tire during running is, and the higher the conductivity requirement of the conductive path is, and the setting of the width of the conductive rubber layer based on the tire tread width can better improve the conductivity of the conductive rubber layer.
In some preferred embodiments of the present application, the width c of the conductive adhesive layer is specifically set as follows:
when the width D of the tire tread is lower than a first preset tire tread width value D1, namely D is smaller than D1, setting the width C of the conductive adhesive layer as a first preset conductive adhesive layer width value C1;
when the tire tread width D is between a first tire tread width preset value D1 and a third tire tread width preset value D2, namely D1< D < D2, setting the width C of the conductive adhesive layer as a second conductive adhesive layer width preset value C2;
when the tire tread width D is between the second tire tread width preset value D2 and the third tire tread width preset value D3, namely D2< D < D3, setting the width C of the conductive adhesive layer as a third conductive adhesive layer width preset value C3;
and when the tire tread width D is between the third tire tread width preset value D3 and the fourth tire tread width preset value D4, namely D3< D < D4, setting the width C of the conductive adhesive layer as a fourth conductive adhesive layer width preset value C4.
It can be understood that, in the above embodiments, the width of the conductive rubber layer is set based on the tire tread width, since the larger the tire tread width is, the more static electricity generated during the running of the tire is, and the higher the conductivity requirement of the conductive path is, and the width of the conductive rubber layer is set based on the tire tread width, when the tire tread becomes larger, the larger the width of the conductive rubber layer can better improve the conductivity of the tire.
In some preferred embodiments of the present application, the process of preparing the tread rubber component further comprises:
presetting conductive adhesive layer and crown band layer contact area matrixes E and E (E1, E2, E3 and E4), wherein E1 is a preset value of the contact area of the first conductive adhesive layer and the crown band layer; e2 is a preset value of the contact area of the second conductive adhesive layer and the crown band strip layer; e3 is a preset value of the contact area of the third conductive adhesive layer and the crown band strip layer; e4 is a preset value of the contact area of the fourth conductive adhesive layer and the crown band strip layer; and E1< E2< E3< E4;
and setting the contact area e of the conductive adhesive layer and the cap band layer according to the addition b of the white carbon black of the base adhesive layer.
It can be understood that, in the above embodiments, the relationship between the contact area of the conductive adhesive layer and the cap strip layer and the addition amount of the white carbon black of the base adhesive layer is set, and the higher the content of the white carbon black of the base adhesive layer is, the conductivity of the conductive path in the present application, that is, the vehicle → the rim → the abrasion-resistant adhesive → the sidewall → the cap strip → the conductive adhesive (chimney adhesive) → the ground surface, is decreased, and the conductivity of the conductive path in the present application, that is, the vehicle → the rim → the abrasion-resistant adhesive → the sidewall → the base adhesive → the conductive adhesive (chimney adhesive) → the ground surface, is increased by increasing the contact area of the conductive adhesive layer and the cap strip layer.
The rolling resistance optimizing space is expanded, high conductivity is kept, conductivity is improved, and meanwhile lower rolling resistance rate is obtained.
In some preferred embodiments of the present application, the contact area e between the conductive adhesive layer and the cap band layer is specifically set as follows:
the adding amount B of the white carbon black of the base adhesive layer is less than a first preset adding amount B1 of the white carbon black of the base adhesive layer, namely when B is less than B1, the preset value E1 of the contact area of the first conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer;
the adding amount B of the white carbon black of the base adhesive layer is between a first preset adding amount B1 of the white carbon black of the base adhesive layer and a second preset adding amount B2 of the white carbon black of the base adhesive layer, namely when B1 is more than B and less than B2, the preset value E2 of the contact area of the second conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer;
the adding amount B of the white carbon black of the base adhesive layer is between the second preset adding amount B2 of the white carbon black of the base adhesive layer and the third preset adding amount B3 of the white carbon black of the base adhesive layer, namely when B2 is more than B and less than B3, the preset value E3 of the contact area of the third conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer;
the adding amount B of the white carbon black of the base adhesive layer is between the third preset adding amount B3 of the white carbon black of the base adhesive layer and the fourth preset adding amount B4 of the white carbon black of the base adhesive layer, namely when B3 is more than B and less than B4, the preset value E4 of the contact area of the fourth conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer.
In some preferred embodiments of the present application, the process of preparing the tread rubber component further comprises:
acquiring the white carbon black content of the base adhesive layer in real time, and dynamically adjusting the contact area of the conductive adhesive layer and the cap band layer on the basis of the white carbon black content of the base adhesive layer;
if the white carbon black content of the base adhesive layer obtained in real time is higher than the white carbon black addition matrix of the base adhesive layer, increasing the contact area of the conductive adhesive layer and the cap band layer;
and if the content of the white carbon black of the base adhesive layer obtained in real time is lower than the matrix of the addition amount of the white carbon black of the base adhesive layer, reducing the contact area of the conductive adhesive layer and the crown band strip layer.
It can be understood that, in the above embodiment, the relationship between the contact area of the conductive adhesive layer and the cap strip layer and the addition amount of the white carbon black of the base adhesive layer is set, and the higher the content of the white carbon black of the base adhesive layer is, the lower the conductivity of the conductive path in the present application, the vehicle → the rim → the abrasion-resistant adhesive → the sidewall → the cap strip layer → the conductive adhesive (chimney glue) → ground, and the higher the contact area of the conductive adhesive layer and the cap strip layer is, the higher the conductivity of the conductive path in the present application, the higher the conductivity of the vehicle → the rim → the abrasion-resistant adhesive → the sidewall → the base adhesive → the conductive adhesive (chimney glue) → ground path. The rolling resistance optimizing space is expanded, high conductivity is kept, conductivity is improved, and meanwhile lower rolling resistance rate is obtained.
In some preferred embodiments of the present application, there is provided a high conductivity low rolling resistance structural tire, the tire comprising:
the tire tread comprises a steel wire ring component, an airtight layer, a cord layer, a tire side, a tire tread rubber component, a tire tread steel wire bundle belt layer and a cap belt layer;
the side wall rubber component comprises an insulating rubber layer, a conductive rubber layer and a base rubber layer.
In some preferred embodiments of the present application, the conductive adhesive layer is a chimney structure, the conductive adhesive layer is a vertical structure and penetrates through the base adhesive layer and the insulating rubber layer, and the cap strip layer is connected to the conductive adhesive layer for eliminating static electricity generated by the tire.
According to the first concept of the present application, the cap strip layer is connected to the conductive adhesive layer by penetrating the conductive adhesive layer through the base adhesive layer and the insulating rubber layer, so as to construct an electrostatic conductive path consisting of vehicle → rim → abrasion-resistant adhesive → sidewall → cap strip → conductive adhesive (chimney adhesive) → ground, thereby improving the conductivity of the tire.
According to the second concept of the present application, a dual conductive structure consisting of a vehicle → a rim → an abrasion-resistant adhesive → a sidewall → a base adhesive → a conductive adhesive (chimney adhesive) → ground and a vehicle → a rim → an abrasion-resistant adhesive → a sidewall → a cap strip → a conductive adhesive (chimney adhesive) → ground is constructed by a dual path conductive structure, and a high conductive property is maintained while a rolling resistance optimization space is expanded, and a lower rolling resistance ratio is obtained while the conductive property is improved.
According to the third concept of the application, the requirement of the tire on different rolling resistance rates can be met by dynamically monitoring the preparation process of the base rubber layer in real time, the contact area of the electric rubber layer and the crown band layer is adjusted in real time, the conductivity of the tire is improved, and static electricity generated in the running process of the vehicle is better eliminated.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least a portion of the sub-steps or stages of other steps.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A preparation method of a tire with a high-conductivity low-rolling-resistance structure is characterized by comprising the following steps:
step one, processing, attaching and compacting a steel wire ring component, an air-tight layer material, a cord ply material and sidewall rubber to prepare a semi-finished tire blank;
step two, preparing a tire tread steel wire bundle belt layer and a cap belt strip layer, and applying a tire tread rubber component on the cap belt strip layer to obtain a tire tread component;
step three, jointing the tread assembly with the semi-finished tire blank to obtain a complete tire blank, and vulcanizing the complete tire blank to obtain a finished tire;
the tread rubber component comprises an insulating rubber layer, a conductive rubber layer and a base rubber layer;
the conductive rubber layer is of a vertical structure and penetrates through the base rubber layer and the insulating rubber layer, and the crown band layer is connected with the conductive rubber layer to form a conductive path.
2. The method for preparing the tire with the high-conductivity and low-rolling resistance structure as claimed in claim 1, wherein the preparation process of the tread rubber component is specifically as follows:
presetting a tire rolling resistance grade matrix A, A (A1, A2, A3, A4), wherein A1 is a first tire rolling resistance preset grade; wherein A2 is a preset level of rolling resistance of the second tire; wherein A3 is a preset rolling resistance grade of the third tire; wherein A4 is a fourth tire rolling resistance preset grade; and A1< A2< A3< A4;
presetting a matrix B and B (B1, B2, B3 and B4) of the addition amount of the white carbon black of the base glue layer, wherein B1 is a first preset addition amount of the white carbon black of the base glue layer; b2 is a second preset adding amount of the white carbon black of the base glue layer; b3 is a first preset adding amount of the white carbon black of the base glue layer; b4 is a fourth preset adding amount of the white carbon black of the base glue layer; and B1< B2< B3< B4;
and setting the addition b of the white carbon black of the base rubber layer according to the rolling resistance grade a of the tire.
3. The preparation method of the tire with the high-conductivity and low-rolling resistance structure according to claim 2, wherein the addition b of the white carbon black in the base rubber layer is specifically set as follows:
when the rolling resistance grade a of the tire is a first tire rolling resistance preset grade A1, setting the addition amount B of the white carbon black of the base rubber layer to be smaller than a first preset addition amount B1 of the white carbon black of the base rubber layer, namely B is smaller than B1;
when the rolling resistance grade a of the tire is a second rolling resistance preset grade A2, setting the addition amount B of the white carbon black of the base rubber layer to be between a first preset addition amount B1 of the white carbon black of the base rubber layer and a second preset addition amount B2 of the white carbon black of the base rubber layer, namely B1< B < B2;
when the rolling resistance grade a of the tire is a third rolling resistance preset grade A3, setting the addition amount B of the white carbon black of the base rubber layer to be between a second preset addition amount B2 of the white carbon black of the base rubber layer and a third preset addition amount B3 of the white carbon black of the base rubber layer, namely B2< B < B3;
when the tire rolling resistance grade a is a fourth tire rolling resistance preset grade A4, setting the adding amount B of the white carbon black of the base rubber layer to be between a third preset adding amount B3 of the white carbon black of the base rubber layer and a fourth preset adding amount B4 of the white carbon black of the base rubber layer, namely B3< B < B4.
4. The method of manufacturing a tire having a high electrical conductivity and a low rolling resistance as claimed in claim 3, wherein the process of manufacturing the tread rubber component further comprises:
presetting a width matrix C and C (C1, C2, C3 and C4) of the conductive adhesive layer, wherein C1 is the preset width value of the first conductive adhesive layer; c2 is a preset width value of the second conductive adhesive layer; c3 is a preset width value of the third conductive adhesive layer; c4 is the width preset value of the fourth conductive adhesive layer; and C1< C2< C3< C4;
presetting a tire tread width matrix D, (D1, D2, D3, D4), wherein D1 is a first tire tread width preset value; d2 is a preset value of the width of the second tire tread; d3 is a preset value of the tread width of the third tire; d4 is a preset value of the tread width of the fourth tire; and D1< D2< D3< D4;
the conductive gum layer width c is set based on the tire tread width d.
5. The method for preparing a tire with a high conductivity and a low rolling resistance structure according to claim 4, wherein the width c of the conductive adhesive layer is set as follows:
when the width D of the tire tread is lower than a first preset tire tread width value D1, namely D is smaller than D1, setting the width C of the conductive adhesive layer as a first preset conductive adhesive layer width value C1;
when the tire tread width D is between the first tire tread width preset value D1 and the third tire tread width preset value D2, namely D1< D < D2, setting the width C of the conductive adhesive layer as a second conductive adhesive layer width preset value C2;
when the tire tread width D is between the second tire tread width preset value D2 and the third tire tread width preset value D3, namely D2< D < D3, setting the width C of the conductive adhesive layer as a third conductive adhesive layer width preset value C3;
and when the tire tread width D is between the third tire tread width preset value D3 and the fourth tire tread width preset value D4, namely D3< D < D4, setting the width C of the conductive adhesive layer as a fourth conductive adhesive layer width preset value C4.
6. The method of manufacturing a tire having a high electrical conductivity and a low rolling resistance as claimed in claim 5, wherein the process of manufacturing the tread rubber component further comprises:
presetting conductive adhesive layer and crown band layer contact area matrixes E and E (E1, E2, E3 and E4), wherein E1 is a preset value of the contact area of the first conductive adhesive layer and the crown band layer; e2 is a preset value of the contact area of the second conductive adhesive layer and the crown band strip layer; e3 is a preset value of the contact area of the third conductive adhesive layer and the crown band strip layer; e4 is a preset value of the contact area of the fourth conductive adhesive layer and the crown band strip layer; and E1< E2< E3< E4;
and setting the contact area e of the conductive adhesive layer and the cap band layer according to the addition b of the white carbon black of the base adhesive layer.
7. The method for preparing a tire with a high-conductivity and low rolling resistance structure as claimed in claim 6, wherein the contact area e between the conductive rubber layer and the crown band strip layer is set as follows:
when the addition B of the white carbon black of the base adhesive layer is less than a first preset addition B1 of the white carbon black of the base adhesive layer, namely B is less than B1, setting a preset value E1 of the contact area of the first conductive adhesive layer and the cap band layer as the contact area E of the conductive adhesive layer and the cap band layer;
the adding amount B of the white carbon black of the base adhesive layer is between a first preset adding amount B1 of the white carbon black of the base adhesive layer and a second preset adding amount B2 of the white carbon black of the base adhesive layer, namely when B1 is more than B and less than B2, the preset value E2 of the contact area of the second conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer;
the adding amount B of the white carbon black of the base adhesive layer is between the second preset adding amount B2 of the white carbon black of the base adhesive layer and the third preset adding amount B3 of the white carbon black of the base adhesive layer, namely when B2 is more than B and less than B3, the preset value E3 of the contact area of the third conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer;
the adding amount B of the white carbon black of the base adhesive layer is between the third preset adding amount B3 of the white carbon black of the base adhesive layer and the fourth preset adding amount B4 of the white carbon black of the base adhesive layer, namely when B3 is more than B and less than B4, the preset value E4 of the contact area of the fourth conductive adhesive layer and the crown band layer is set as the contact area E of the conductive adhesive layer and the crown band layer.
8. The method of manufacturing a tire having a high electrical conductivity and a low rolling resistance as claimed in claim 7, wherein the process of manufacturing the tread rubber component further comprises:
acquiring the white carbon black content of the base adhesive layer in real time, and dynamically adjusting the contact area of the conductive adhesive layer and the cap strip layer based on the white carbon black content of the base adhesive layer;
if the white carbon black content of the base adhesive layer obtained in real time is higher than the white carbon black addition matrix of the base adhesive layer, increasing the contact area of the conductive adhesive layer and the cap band layer;
and if the content of the white carbon black of the base adhesive layer obtained in real time is lower than the matrix of the addition amount of the white carbon black of the base adhesive layer, reducing the contact area of the conductive adhesive layer and the crown band strip layer.
9. A tire with a high-conductivity and low-rolling-resistance structure, which is prepared by the method for preparing the tire with the high-conductivity and low-rolling-resistance structure as claimed in any one of claims 1 to 8, and is characterized by comprising the following components:
the tire tread comprises a steel wire ring component, an airtight layer, a cord layer, a tire side, a tire tread rubber component, a tire tread steel wire bundle belt layer and a cap belt layer;
the side wall rubber component comprises an insulating rubber layer, a conductive rubber layer and a base rubber layer.
10. The high conductivity low rolling resistance structural tire of claim 9, wherein:
the conductive rubber layer is of a chimney structure, the electric rubber layer is of a vertical structure and penetrates through the base rubber layer and the insulating rubber layer, and the cap strip layer is connected with the conductive rubber layer and used for eliminating static electricity generated by the tire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210697173.8A CN115352225B (en) | 2022-06-20 | 2022-06-20 | Tire with high conductivity and low rolling resistance structure and preparation method thereof |
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| CN202210697173.8A CN115352225B (en) | 2022-06-20 | 2022-06-20 | Tire with high conductivity and low rolling resistance structure and preparation method thereof |
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| CN115352225B CN115352225B (en) | 2024-06-28 |
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| Publication number | Publication date |
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| CN115352225B (en) | 2024-06-28 |
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