CN111070534A - Method for applying belted layer steel cord to all-steel radial tire - Google Patents
Method for applying belted layer steel cord to all-steel radial tire Download PDFInfo
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- CN111070534A CN111070534A CN201911395201.5A CN201911395201A CN111070534A CN 111070534 A CN111070534 A CN 111070534A CN 201911395201 A CN201911395201 A CN 201911395201A CN 111070534 A CN111070534 A CN 111070534A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
- B29C43/245—Adjusting calender parameters, e.g. bank quantity
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- 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
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/28—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
-
- 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)
- B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Tyre Moulding (AREA)
- Tires In General (AREA)
Abstract
The invention provides a method for applying a belted layer steel cord to an all-steel radial tire, which comprises the following steps: preparing materials, carrying out rubber material hot refining, supplying a rubber machine table, calendering the cord fabric, and preparing the belted steel cord. The invention has the beneficial effects that: the 3+8 multiplied by 0.33HT steel wire belongs to a high-strength open steel wire, the rubber permeability is good when the HT steel wire is bonded with rubber, rubber materials are uniformly bonded among all the steel wires, the rolling heat generation and delamination of the tire can be greatly reduced on the basis of ensuring the bearing performance of the tire, the high-speed performance of the tire is effectively improved, and the service life of the tire is prolonged.
Description
Technical Field
The invention relates to the technical field of tire manufacturing, in particular to a method for applying a belted layer steel wire cord to an all-steel radial tire.
Background
The tire is divided into a bias tire, a belted bias tire and a radial tire according to the arrangement angle of the framework material, and the radial tire is gradually replacing the bias theory with good riding comfort, wear resistance and high-speed performance and becomes the development trend of the tire. The development of radial tires also focuses on improving the riding comfort, wear resistance and high speed performance of the tires.
In the prior art, the crown part of the radial tire consists of a crown rubber and a belted layer, wherein the belted layer is also called a buffer layer and has the functions of dispersing the vibration and impact on a tire body, improving the rigidity of the belted layer, reducing heat generation and effectively improving the high-speed performance of the tire. The 3+9+15 x 0.22+0.15W steel wires are commonly used in the belted layer of the domestic tire enterprise, the steel wires belong to tight molded line contact steel wires, when the steel wires are manufactured, firstly, 3 steel wires are twisted into a core strand with a certain twist, the second layer is wrapped by 9 steel wires, the outer layer is wound by 15 steel wires, and finally, an outer winding steel wire is added for hooping. The steel wire has the defects that when the steel wire is bonded with rubber, the rubber permeability is poor, a large amount of air is reserved among steel wire strands, a large amount of heat is generated by friction among various steel wires of a core strand during running of a tire, the temperature of a tire crown and a tire shoulder part is increased, and the air is expanded to cause local delamination.
Disclosure of Invention
An object of the present invention is to provide a method of applying a belt steel cord to an all-steel radial tire to solve the problems set forth in the above-described background art.
In order to achieve the purpose, the invention provides the following technical scheme: a method of applying a belt steel cord to an all-steel radial tire, comprising the steps of:
s1: preparing materials, namely preparing corresponding sizing materials according to the planned requirement of cord fabric calendering, checking and checking that sizing material cards meet the quality requirement, and keeping using the sizing materials according to the production sequence; the thickness of the strip-passing film accords with the specification of 10 mm;
s2: sizing material hot refining: the heating time of the rubber material on the open mill is controlled to be 3-3.5 minutes; the refining machine station needs to keep close connection with the glue supply machine station and the heat refining machine station, and the glue pouring operation is continued so that the glue materials are fully refined and mixed to achieve a good refining degree; the reasonable rubber material buffer storage is controlled to prevent the over-refining of the rubber material and control the temperature rise; the cooling water flow is controlled to keep the roller and the sizing material to be fully cooled, so that the excessive temperature of the sizing material is avoided;
s3: a glue supply machine station: the reasonable rubber material buffer storage is controlled to prevent the over-refining of the rubber material and control the temperature rise; the cooling water cooling loop keeps the open state to fully cool the sizing material; the glue supply temperature of the glue material is 85 +/-5 ℃ within a control range;
s4: the method comprises the following steps of rolling the cord fabric, detecting the tension adjustment condition on the steel cord fabric by using the existing load sensor, wherein the display quantity of a tension adjustment signal is 600-1200 Kg, and the return water of a cooling roller needs to be kept between the ambient temperature of a workshop and less than or equal to 40 ℃ so as to prevent moisture from condensing on the cooling drum and achieve a good cooling effect, controlling the pressure of a pressure roller oil cylinder, ensuring that the pressure is 40Kgf at the minimum under the condition of uniform cord thread density, and rolling speed: starting the vehicle for 0-7 m/min, and normally for 7-30 m/min;
s5: preparing a belted steel wire cord, namely adjusting the original 3+9+15 multiplied by 0.22+0.15W common closed structure of the steel radial tire belted layer steel wire cord into a 3+8 multiplied by 0.33HT high-strength open structure, adjusting the rolling density from 48 pieces/100 mm to 45 pieces/100 mm, adjusting the diameter of the 3+8 multiplied by 0.33HT high-strength open steel wire cord to be small, properly reducing the rolling thickness of the steel cord fabric, and adjusting the rolling thickness of the steel cord fabric from 2.4mm to 2.2 mm.
Preferably, in the third step, the temperature of the cooling water is 20 +/-5 ℃ (the annual fluctuation range is less than or equal to 3 ℃).
Preferably, in step four, the pressure of the pressure roller: 48 +/-3 Kpa, the tension of the single filament led off by the spindle is 1.2-1.5 +/-0.05 Kg, the maximum tension is 1.5Kg, and the high-elongation cord is 0-0 +/-0.05 Kg.
Preferably, in the fifth step, the 3+8 × 0.33HT steel cord has no outer winding, the same twisting direction and the filaments are in line contact with each other, thereby improving the fatigue resistance and high speed performance of the steel cord.
Compared with the prior art, the invention has the beneficial effects that:
1. the steel wire cord of the belted layer of the all-steel radial tire is adjusted to be a 3+8 high-strength open structure from an original 3+9+15 common closed structure, the calendering density is adjusted to be 45/100 mm from 48/100 mm, the permeability of rubber in the steel wire is improved, the adhesion of the steel wire and the rubber is improved, and the high-speed performance of the tire is improved by 10 percent;
2. the 3+8 high-strength open type steel wire has small wire diameter, so that the calendering thickness of the steel wire cord fabric can be properly reduced, and the problem that the shoulder space ratio is reduced by 5 percent due to overhigh heat generation caused by over-thick material is avoided;
3.3 +8 open type high-strength steel wires are adopted, the calendering thickness of the steel wire cord fabric is adjusted to 2.2mm from the original 2.4mm, the production cost is reduced by 10%, and the service life of the tire is prolonged by more than 5%.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The invention provides a technical scheme that: a method of applying a belt steel cord to an all-steel radial tire, comprising the steps of:
s1: preparing materials, namely preparing corresponding sizing materials according to the planned requirement of cord fabric calendering, checking and checking that sizing material cards meet the quality requirement, and keeping using the sizing materials according to the production sequence; the thickness of the strip-passing film accords with the specification of 10 mm;
s2: rubber materials are subjected to heat refining, and the heat refining time of the rubber materials on an open mill is controlled to be 3 minutes; the refining machine station needs to keep close connection with the glue supply machine station and the heat refining machine station, and the glue pouring operation is continued so that the glue materials are fully refined and mixed to achieve a good refining degree; the reasonable rubber material buffer storage is controlled to prevent the over-refining of the rubber material and control the temperature rise; the cooling water flow is controlled to keep the roller and the sizing material to be fully cooled, so that the excessive temperature of the sizing material is avoided;
s3: the glue supply machine station controls reasonable glue stock buffer storage to prevent over-smelting of glue stock and control temperature rise; the cooling water cooling loop keeps the open state to fully cool the sizing material; the glue supply temperature of the glue stock is 85 ℃ within the control range;
s4: the curtain cloth is rolled, the tension adjustment condition on the steel wire curtain cloth is detected by using the existing load sensor, the display quantity of a tension adjustment signal is 600Kg, the return water of a cooling roller must be kept between the ambient temperature of a workshop and less than or equal to 40 ℃ to prevent moisture from condensing on the cooling drum and have good cooling effect, the pressure of a pressure roller oil cylinder is controlled, the minimum pressure of 40Kgf and the rolling speed are ensured under the condition of uniform cord thread density: starting the vehicle for 2m/min and normally 7 m/min;
s5: preparing a belted steel wire cord, namely adjusting the original 3+9+15 multiplied by 0.22+0.15W common closed structure of the steel radial tire belted layer steel wire cord into a 3+8 multiplied by 0.33HT high-strength open structure, adjusting the rolling density from 48 pieces/100 mm to 45 pieces/100 mm, adjusting the diameter of the 3+8 multiplied by 0.33HT high-strength open steel wire cord to be small, properly reducing the rolling thickness of the steel cord fabric, and adjusting the rolling thickness of the steel cord fabric from 2.4mm to 2.2 mm.
Wherein, in the third step, the temperature of the cooling water is 20 plus or minus 5 ℃ (the annual fluctuation range is less than or equal to 3 ℃); in step four, the pressure of the pressure roller: 48 +/-3 Kpa, the tension of the single filament led off by the spindle is 1.2-1.5 +/-0.05 Kg, the maximum tension is 1.5Kg, and the high-elongation cord is 0-0 +/-0.05 Kg; in the fifth step, the 3+8 multiplied by 0.33HT steel cord has no outer winding wires, the twisting direction is the same, and the single wires are in line contact, thereby improving the fatigue resistance and the high-speed performance of the steel cord.
Example two
The invention provides a technical scheme that: a method of applying a belt steel cord to an all-steel radial tire, comprising the steps of:
s1: preparing materials, namely preparing corresponding sizing materials according to the planned requirement of cord fabric calendering, checking and checking that sizing material cards meet the quality requirement, and keeping using the sizing materials according to the production sequence; the thickness of the strip-passing film accords with the specification of 10 mm;
s2: rubber materials are subjected to heat refining, and the heat refining time of the rubber materials on an open mill is controlled to be 3.1 minutes; the refining machine station needs to keep close connection with the glue supply machine station and the heat refining machine station, and the glue pouring operation is continued so that the glue materials are fully refined and mixed to achieve a good refining degree; the reasonable rubber material buffer storage is controlled to prevent the over-refining of the rubber material and control the temperature rise; the cooling water flow is controlled to keep the roller and the sizing material to be fully cooled, so that the excessive temperature of the sizing material is avoided;
s3: the glue supply machine station controls reasonable glue stock buffer storage to prevent over-smelting of glue stock and control temperature rise; the cooling water cooling loop keeps the open state to fully cool the sizing material; the glue supply temperature of the glue stock is 86 ℃ within the control range;
s4: the curtain cloth is rolled, the tension adjustment condition on the steel wire curtain cloth is detected by using the existing load sensor, the display quantity of a tension adjustment signal is 800Kg, the return water of a cooling roller must be kept between the ambient temperature of a workshop and less than or equal to 40 ℃ to prevent moisture from condensing on the cooling drum and have good cooling effect, the pressure of a pressure roller oil cylinder is controlled, the minimum pressure of 40Kgf and the rolling speed are ensured under the condition of uniform cord thread density: starting the vehicle for 3m/min and normally 15 m/min;
s5: preparing a belted steel wire cord, namely adjusting the original 3+9+15 multiplied by 0.22+0.15W common closed structure of the steel radial tire belted layer steel wire cord into a 3+8 multiplied by 0.33HT high-strength open structure, adjusting the rolling density from 48 pieces/100 mm to 45 pieces/100 mm, adjusting the diameter of the 3+8 multiplied by 0.33HT high-strength open steel wire cord to be small, properly reducing the rolling thickness of the steel cord fabric, and adjusting the rolling thickness of the steel cord fabric from 2.4mm to 2.2 mm.
Wherein, in the third step, the temperature of the cooling water is 20 plus or minus 5 ℃ (the annual fluctuation range is less than or equal to 3 ℃); in step four, the pressure of the pressure roller: 48 +/-3 Kpa, the tension of the single filament led off by the spindle is 1.2-1.5 +/-0.05 Kg, the maximum tension is 1.5Kg, and the high-elongation cord is 0-0 +/-0.05 Kg; in the fifth step, the 3+8 multiplied by 0.33HT steel cord has no outer winding wires, the twisting direction is the same, and the single wires are in line contact, thereby improving the fatigue resistance and the high-speed performance of the steel cord.
EXAMPLE III
The invention provides a technical scheme that: a method of applying a belt steel cord to an all-steel radial tire, comprising the steps of:
s1: preparing materials, namely preparing corresponding sizing materials according to the planned requirement of cord fabric calendering, checking and checking that sizing material cards meet the quality requirement, and keeping using the sizing materials according to the production sequence; the thickness of the strip-passing film accords with the specification of 10 mm;
s2: rubber materials are subjected to heat refining, and the heat refining time of the rubber materials on an open mill is controlled to be 3.3 minutes; the refining machine station needs to keep close connection with the glue supply machine station and the heat refining machine station, and the glue pouring operation is continued so that the glue materials are fully refined and mixed to achieve a good refining degree; the reasonable rubber material buffer storage is controlled to prevent the over-refining of the rubber material and control the temperature rise; the cooling water flow is controlled to keep the roller and the sizing material to be fully cooled, so that the excessive temperature of the sizing material is avoided;
s3: the glue supply machine station controls reasonable glue stock buffer storage to prevent over-smelting of glue stock and control temperature rise; the cooling water cooling loop keeps the open state to fully cool the sizing material; the glue supply temperature of the glue stock is 88 ℃ within the control range;
s4: the curtain cloth is rolled, the tension adjustment condition on the steel wire curtain cloth is detected by using the existing load sensor, the tension adjustment signal display quantity is 1000Kg, the return water of the cooling roller must be kept between the ambient temperature of a workshop and less than or equal to 40 ℃ to prevent moisture from condensing on the cooling drum and have good cooling effect, the pressure of a pressure roller oil cylinder is controlled, the minimum pressure is 40Kgf under the condition of ensuring the uniform cord thread density, and the rolling speed is as follows: starting the vehicle at 5m/min and at 26 m/min;
s5: preparing a belted steel wire cord, namely adjusting the original 3+9+15 multiplied by 0.22+0.15W common closed structure of the steel radial tire belted layer steel wire cord into a 3+8 multiplied by 0.33HT high-strength open structure, adjusting the rolling density from 48 pieces/100 mm to 45 pieces/100 mm, adjusting the diameter of the 3+8 multiplied by 0.33HT high-strength open steel wire cord to be small, properly reducing the rolling thickness of the steel cord fabric, and adjusting the rolling thickness of the steel cord fabric from 2.4mm to 2.2 mm.
Wherein, in the third step, the temperature of the cooling water is 20 plus or minus 5 ℃ (the annual fluctuation range is less than or equal to 3 ℃); in step four, the pressure of the pressure roller: 48 +/-3 Kpa, the tension of the single filament led off by the spindle is 1.2-1.5 +/-0.05 Kg, the maximum tension is 1.5Kg, and the high-elongation cord is 0-0 +/-0.05 Kg; in the fifth step, the 3+8 multiplied by 0.33HT steel cord has no outer winding wires, the twisting direction is the same, and the single wires are in line contact, thereby improving the fatigue resistance and the high-speed performance of the steel cord.
Example four
The invention provides a technical scheme that: a method of applying a belt steel cord to an all-steel radial tire, comprising the steps of:
s1: preparing materials, namely preparing corresponding sizing materials according to the planned requirement of cord fabric calendering, checking and checking that sizing material cards meet the quality requirement, and keeping using the sizing materials according to the production sequence; the thickness of the strip-passing film accords with the specification of 10 mm;
s2: rubber materials are subjected to heat refining, and the heat refining time of the rubber materials on an open mill is controlled to be 3.5 minutes; the refining machine station needs to keep close connection with the glue supply machine station and the heat refining machine station, and the glue pouring operation is continued so that the glue materials are fully refined and mixed to achieve a good refining degree; the reasonable rubber material buffer storage is controlled to prevent the over-refining of the rubber material and control the temperature rise; the cooling water flow is controlled to keep the roller and the sizing material to be fully cooled, so that the excessive temperature of the sizing material is avoided;
s3: the glue supply machine station controls reasonable glue stock buffer storage to prevent over-smelting of glue stock and control temperature rise; the cooling water cooling loop keeps the open state to fully cool the sizing material; the glue supply temperature of the glue stock is 90 ℃ within a control range;
s4: curtain cloth calendering, detect the tension adjustment situation on the steel wire curtain cloth with the existing load cell, the tension adjustment signal display quantity is 1200Kg, the backwater of the cooling roll, must keep between ambient temperature of workshop and ≤ 40 deg.C, in order to prevent the condensation of moisture and good cooling effect on the cooling drum, control the pressure of the oil cylinder of the pressure roll, guarantee the minimum 40Kgf of pressure under the condition of uniform cord thread density, calendering speed: starting the vehicle for 7m/min and normally for 30 m/min;
s5: preparing a belted steel wire cord, namely adjusting the original 3+9+15 multiplied by 0.22+0.15W common closed structure of the steel radial tire belted layer steel wire cord into a 3+8 multiplied by 0.33HT high-strength open structure, adjusting the rolling density from 48 pieces/100 mm to 45 pieces/100 mm, adjusting the diameter of the 3+8 multiplied by 0.33HT high-strength open steel wire cord to be small, properly reducing the rolling thickness of the steel cord fabric, and adjusting the rolling thickness of the steel cord fabric from 2.4mm to 2.2 mm.
Wherein, in the third step, the temperature of the cooling water is 20 plus or minus 5 ℃ (the annual fluctuation range is less than or equal to 3 ℃); in step four, the pressure of the pressure roller: 48 +/-3 Kpa, the tension of the single filament led off by the spindle is 1.2-1.5 +/-0.05 Kg, the maximum tension is 1.5Kg, and the high-elongation cord is 0-0 +/-0.05 Kg; in the fifth step, the 3+8 multiplied by 0.33HT steel cord has no outer winding wires, the twisting direction is the same, and the single wires are in line contact, thereby improving the fatigue resistance and the high-speed performance of the steel cord.
The performance indexes of the 3+9+ 15X 0.22+0.15W steel cord and the 3+ 8X 0.33HT steel cord are compared and shown in Table 1
TABLE 1
The results of the 3+9+ 15X 0.22+0.15W steel cords and the 3+ 8X 0.33HT steel cords are compared in Table 2
TABLE 2
Comparison of the processing properties of the 3+9+ 15X 0.22+0.15W steel cord and the 3+ 8X 0.33HT steel cord at calendering, see Table 3
TABLE 3
The 3+8 multiplied by 0.33HT steel wire cord fabric and the 3+9+15 multiplied by 0.22+0.15W steel wire cord fabric are adopted as tire belt layers to manufacture and produce 11.00R2018PR tires for comparing the durability and the high-speed performance of finished products, and the table 4 shows
TABLE 4
Taking 11.00R2018PR as an example, the mass of a single tire adopting 3+8 × 0.33HT steel wire cord fabric as a belt ply is reduced by about 10% compared with the mass of a single tire adopting 3+9+15 × 0.22+0.15W steel wire cord fabric as the belt ply, the raw material cost of the single tire is reduced by 15.8 yuan, and the economic benefit is remarkable. See Table 5
TABLE 5
The invention has the advantages that: the 3+8 multiplied by 0.33HT steel wire belongs to a high-strength open steel wire, the rubber permeability is good when the HT steel wire is bonded with rubber, rubber materials are uniformly bonded among all the steel wires, the rolling heat generation and delamination of the tire can be greatly reduced on the basis of ensuring the bearing performance of the tire, the high-speed performance of the tire is effectively improved, and the service life of the tire is prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A method of applying a belt steel cord to an all-steel radial tire, characterized by comprising the steps of:
s1: preparing materials, namely preparing corresponding sizing materials according to the planned requirement of cord fabric calendering, checking and checking that sizing material cards meet the quality requirement, and keeping using the sizing materials according to the production sequence; the thickness of the strip-passing film accords with the specification of 10 mm;
s2: carrying out rubber material hot refining, wherein the hot refining time of the rubber material on an open mill is controlled to be 3-3.5 minutes; the refining machine station needs to keep close connection with the glue supply machine station and the heat refining machine station, and the glue pouring operation is continued so that the glue materials are fully refined and mixed to achieve a good refining degree; the reasonable rubber material buffer storage is controlled to prevent the over-refining of the rubber material and control the temperature rise; the cooling water flow is controlled to keep the roller and the sizing material to be fully cooled, so that the excessive temperature of the sizing material is avoided;
s3: the glue supply machine station controls reasonable glue stock buffer storage to prevent over-smelting of glue stock and control temperature rise; the cooling water cooling loop keeps the open state to fully cool the sizing material; the glue supply temperature of the glue material is 85 +/-5 ℃ within a control range;
s4: the method comprises the following steps of rolling the cord fabric, detecting the tension adjustment condition on the steel cord fabric by using the existing load sensor, wherein the display quantity of a tension adjustment signal is 600-1200 Kg, and the return water of a cooling roller needs to be kept between the ambient temperature of a workshop and less than or equal to 40 ℃ so as to prevent moisture from condensing on the cooling drum and achieve a good cooling effect, controlling the pressure of a pressure roller oil cylinder, ensuring that the pressure is 40Kgf at the minimum under the condition of uniform cord thread density, and rolling speed: starting the vehicle for 0-7 m/min, and normally for 7-30 m/min;
s5: preparing a belted steel wire cord, namely adjusting the original 3+9+15 multiplied by 0.22+0.15W common closed structure of the steel radial tire belted layer steel wire cord into a 3+8 multiplied by 0.33HT high-strength open structure, adjusting the rolling density from 48 pieces/100 mm to 45 pieces/100 mm, adjusting the diameter of the 3+8 multiplied by 0.33HT high-strength open steel wire cord to be small, properly reducing the rolling thickness of the steel cord fabric, and adjusting the rolling thickness of the steel cord fabric from 2.4mm to 2.2 mm.
2. Method of applying belt steel cords to all-steel radial tires according to claim 1, characterized in that: in the third step, the temperature of the cooling water is 20 plus or minus 5 ℃ (the annual fluctuation range is less than or equal to 3 ℃).
3. Method of applying belt steel cords to all-steel radial tires according to claim 1, characterized in that: in step four, the pressure of the pressure roller: 48 +/-3 Kpa, the tension of the single filament led off by the spindle is 1.2-1.5 +/-0.05 Kg, the maximum tension is 1.5Kg, and the high-elongation cord is 0-0 +/-0.05 Kg.
4. Method of applying belt steel cords to all-steel radial tires according to claim 1, characterized in that: in the fifth step, the 3+8 multiplied by 0.33HT steel cord has no outer winding wires, the twisting direction is the same, and the single wires are in line contact, thereby improving the fatigue resistance and the high-speed performance of the steel cord.
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| CN201911395201.5A CN111070534A (en) | 2019-12-30 | 2019-12-30 | Method for applying belted layer steel cord to all-steel radial tire |
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| CN201911395201.5A CN111070534A (en) | 2019-12-30 | 2019-12-30 | Method for applying belted layer steel cord to all-steel radial tire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114919337A (en) * | 2022-04-28 | 2022-08-19 | 山东玲珑轮胎股份有限公司 | Engineering tire with novel structure and preparation method thereof |
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| 张勋民，曾清，杨利伟: "3+8×0.33HT高强度钢丝帘线在标准型全钢载重子午线轮胎带束层中的应用", 《轮胎工业》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114919337A (en) * | 2022-04-28 | 2022-08-19 | 山东玲珑轮胎股份有限公司 | Engineering tire with novel structure and preparation method thereof |
| CN114919337B (en) * | 2022-04-28 | 2024-02-13 | 山东玲珑轮胎股份有限公司 | Engineering tire and preparation method thereof |
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Application publication date: 20200428 |