CA1151022A - Method for manufacturing a steel cord - Google Patents
Method for manufacturing a steel cordInfo
- Publication number
- CA1151022A CA1151022A CA000356574A CA356574A CA1151022A CA 1151022 A CA1151022 A CA 1151022A CA 000356574 A CA000356574 A CA 000356574A CA 356574 A CA356574 A CA 356574A CA 1151022 A CA1151022 A CA 1151022A
- Authority
- CA
- Canada
- Prior art keywords
- rubber
- steel cord
- steel
- cord
- unvulcanized
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
- D07B7/14—Machine details; Auxiliary devices for coating or wrapping ropes, cables, or component strands thereof
- D07B7/145—Coating or filling-up interstices
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0606—Reinforcing cords for rubber or plastic articles
- D07B1/062—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration
- D07B1/0633—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the strand configuration having a multiple-layer configuration
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2001—Wires or filaments
- D07B2201/201—Wires or filaments characterised by a coating
- D07B2201/2011—Wires or filaments characterised by a coating comprising metals
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2024—Strands twisted
- D07B2201/2027—Compact winding
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2042—Strands characterised by a coating
- D07B2201/2044—Strands characterised by a coating comprising polymers
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3021—Metals
- D07B2205/3085—Alloys, i.e. non ferrous
- D07B2205/3089—Brass, i.e. copper (Cu) and zinc (Zn) alloys
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2046—Tire cords
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Ropes Or Cables (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Tyre Moulding (AREA)
- Wire Processing (AREA)
- Tires In General (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
This invention provides method for manufacturing a steel cord in which a steel cord formed of a plurality of steel filaments, at least outermost filaments of which are in linear contact with one another is treated with rubber solution prepared by dissolving an unvulcanized rubber in a solvent having a compatibility with rubber at a consistency of 1 to 20%, before rubberizing said steel cord by calendering. The steel cord thus obtained has excellent fatigue resistance and also corrosion resistance.
This invention provides method for manufacturing a steel cord in which a steel cord formed of a plurality of steel filaments, at least outermost filaments of which are in linear contact with one another is treated with rubber solution prepared by dissolving an unvulcanized rubber in a solvent having a compatibility with rubber at a consistency of 1 to 20%, before rubberizing said steel cord by calendering. The steel cord thus obtained has excellent fatigue resistance and also corrosion resistance.
Description
This invention relates to a method for manufacturing a steel cord for use in reinforcing rubber articles, such as tires and more particularly to a method for manufacturing a steel cord having excellent fatigue resistance and corrosion resistance.
Recently, radial tires using steel cords as belt material or carcass material have been developed. The wear resistance of tires has been found to be remarkably improved as well as tread rubber quality. Thus, the life of tires has been considerably extended. As the steel cord for such tires, steel cords of so-called twisted in multiple structure prepared by twisting at least a few strands which are in turn made by twisting at least two filaments, are widely used for high pro-ductivity.
However, such steel cords have the problem of fatigue due to fretting, because the individual filaments are in point contact with one another. Thus, there is a risk that tires formed with these cords lose their usefulness due to the fatigue of the steel cord before the tires have completely worn out.
Consequently, a steel cord where the individual fila-ments thereof are in linear contact with one another, for example, a steel cord of twisted layer structure, has been pro-posed to improve the fatigue resistance of the steel cord.
However, it is known that the tires having steel cords have the disadvantage that, when the tires are scarred on their surfaces, the steel cords are susceptible to rusting due to, for example, rain water entering through the scars. Alter-natively the gas J~ 2 -llS102Z
generated during rubber vulcanization or water vapor vaporized from the water present in the rubber caused by heat generation during driving, can corrode the steel cords at the inside clearances in the steel cord even without any scarring.
To overcome the aforesaid disadvantages it has been proposed to modify the quality of the plating material, apply a resin coating to steel cord, or apply a rustproof agent thereto (Japanese Patent Publication No. 3121/78, etc.). How-ever, these procedures are not satisfactory because inter alia the adhesion of the cords to rubber presents a problem.
It is also known to fill the clearances between the individual cords with unvulcanized rubber by winding filaments around injection-molded rubber, as in Japanese Utility Model Publication No. 40188/72. This procedure has the disadvantage that the manufacturing steps are so complicated that productiv-ity is reduced. With steel cords of twisted layer or simple twisted structure where the filaments are in linear contact with each other, it is hard to fill the clearances with rubber according to such a procedure as above, and since the filaments are in linear contact with one another, it is hard to permeate the rubber even to the inside of cord in the calendering step.
Thus steel cords of excellent fatigue resistance and at the same time corrosion resistance have not yet been obtained.
~lS10~2 According to the present invention there is provided a method for manufacturing a steel cord having excellent fati-gue resistance and corrosion resistance, in which a steel cord formed of a plurality of steel filaments at least outermost layer filaments of which are in linear contact with one another, is treated with a rubber solution obtained by dissolving an un-vulcanized rubber in a solvent having a compatibility with rub-ber at a consistency of 1-20~ before rubberizing by calendering.
The present invention will be illustrated by way of the accompanying drawings in which:
Figs. 1 and 2 are cross-sections of a steel cord to be used in accordance with one embodiment of the present inven-tion and formed of a plurality of steel filaments, the filaments at least in the outermost layer being in linear contact with one another;
Fig. 3 is a schematic view of the process according to one embodiment of the present invention; and Fig. 4 is a graph of strength retainability against a number of bendings of various steel cards.
2Q The surface of the steel filament can be subjected to the necessary treatment for adhesion to rubber. For example, the surface can be plated by brass or zinc or by these metals also containing nickel or cobalt, or by a ternary alloy of copper-cobalt-zinc.
The unvulcanized rubber to be used in the method of the present invention may be natural rubber or synthetic rubber such as synthetic polyisoprene rubber, polybutadiene rubber, or styrene-butadiene rubber, but preferably is the same type of rub-ber as that of the coating rubber. Particularly preferable are natural rubber and synthetic polyisoprene rubber.
The solvent having a compatibility with the rubber used in the method of the present invention is preferably in~ustrial grade gasoline Nos. 1-4, alcohol and ether, and more preferably rubber gasoline of industrial grade gasoline No. 2.
~ _ 4a -The concentration of the rubber dipping solution used in the process of the present invention is 1-20%, preferably 1-15%. Below 1%, an insufficient amount of rubber is deposited in the inside clearances in the steel cord, whereas above 20%, the rubber permeates to the inside of the steel cord with great difficulty. Thus, either case is not preferable.
In the present invention, the rubber dipping solution may be admixed, if necessary, with an antioxidant, filler, vulcanizing agent, vulcanization promotor, vulcanization pro-moting additive, etc., as used in the rubber industry.
Referring specifically to Fig. 3 a steel cord 1 is unwound from feed roll 2 and dipped in a rubber dippinq solution 7 in a tank 6 passing around guide rolls 3, 4 and 5. The dip-ped steel cord 1' is continuously rubberized by calender rolls 8. ~efore rubberizing the dipped steel cord 1', the cord can be wound around a roll and stored.
In the foregoing manner, a steel cord having excellent fatigue resistance and a corrosion resistance can be readily and cheaply produced.
The present invention will be described in more detail by way of the following Examples.
Example 1 Twisted layer structure steel cord of [(1 x 3 + 9 +
15) x 0.175 + 1 x 0.15] each filament of which is brass-plated, as shown in Fig. 1, was used. Rubber solutions were prepared by dissolving an unvulcanized rubber composition shown in Table 1 in rubber gasoline to provide the concentrations there-of of 5, 10 and 15%. Dipping time was 2 seconds each, and after the dipping drying was carried out, and then the result-ing dried steel cord was rubberized by calendering with the unvulcanized rubber composition of Table 1 and finally said rubberized steel cord was vulcanized.
.
~lS102Z
Table l Natural rubber lO0 parts by weight HAF carbon black 50 "
Aroma oil lO "
Stearic acid 3 "
N-phenyl-N'-isopropyl-p-phenylene-diamine l.0 "
N-oxydiethylene-2-benzothiazyl-sulphenamide 0.5 "
Cobalt stearate 4 "
Sulfur 2.5 "
The resulting steel cords were cut in the cross-sectional direction by a diamond cutter, and the cross-section was observed under a microscope to evaluate the permeation degree of the rubber to the inside.
Then, the corrosion resistance of the steel cords thus obtained was determined by a bending fatigue test in which cotton was fixed to a predetermined position on the steel cord under 10% load of cord strength at 80 runs/min. and about l cc of water was injected into the cotton by a syringe every 24 hours. The results are shown in Table 2. For comparison, the steel cords without treatment with the rubber solution were similarly determined.
Table 2 Steel cord species State of rubber Number of bending permeation till cord fracture No dipping treatment ~ ly permeated 247,305 Treatment in 5% Completely 887,763 rubber permeated Treatment in 10% Substantially com-rubber solution pletely permeated 792,542 __ .......... _ .
Treatment in 15% Partially leaving 564,273 rubber solution vacant space :115102Z
It is clear from Table 2 that, in case of the steel cords manufactured according to the present invention, the rub-ber is permeated to the inside of the cords, and thus the corrosion resistance and the fatigue resistance are improved at least twice compared with those of the convention steel cords.
Example 2 Simply twisted structure steel cords of (1 x 5 x 0.25) each filament of which is brass-plated as shown in Fig. 2 was used for evaluation in the same manner as in Example 1. The results are shown in Table 3.
Table 3 Steel cord species State of rubber Number of bending permeation till cord fracture No dipping treatment Hardly permeated 11,927 Treatment in 5% Completely 20,173 rubber solution permeated As is clear in Table 3, the steel cords of the pre-sent invention have considerably improved corrosion resistance and fatigue resistance.
Example 3 Twisted layer structure steel cords of [(1 x 3 + 9 +
15) x 0.175 + 1 x 0.15] each filament of which is brass-plated, as used in Example 1, and twisted layer structure steel cords of [(1 x 3 + 9 + 15) x 0.175 + 1 x 0.15] each filament of which is plated by a ternary alloy of copper-cobalt-zinc (65/5/30 by weight) were treated with 5% rubber solution and then rubber-ized and finally vulcanized in the same manner as in Example 1.
The resulting rubberized steel cord layers were sampled as pieces of 220 mm of length and 50 mm of width, and these samples were subjected to a bending test under conditions of 5% NaCl spraying at a spray pressure of 1 kg/cm2 by a saline water sprayer, a bath temperature of 40C, and a bending angle . ..
llS1022 of 40 cpm. Then, the sample pieces were subjected to a draw-ing test, and the bending fatigue resistance of the cords was evaluated in terms of percent strength retainability on the basis of the cord strength measured before the bending test.
The results were shown in Fig. 4. For comparison, two types of the cords without the dipping treatment were also evaluated.
As clear from Fig. 4, the steel cords of the present invention had a considerably improved fatigue resistance, and particularly the fatigue resistance is synergistically improved in the case of the ternary alloy-plated steel cord.
Recently, radial tires using steel cords as belt material or carcass material have been developed. The wear resistance of tires has been found to be remarkably improved as well as tread rubber quality. Thus, the life of tires has been considerably extended. As the steel cord for such tires, steel cords of so-called twisted in multiple structure prepared by twisting at least a few strands which are in turn made by twisting at least two filaments, are widely used for high pro-ductivity.
However, such steel cords have the problem of fatigue due to fretting, because the individual filaments are in point contact with one another. Thus, there is a risk that tires formed with these cords lose their usefulness due to the fatigue of the steel cord before the tires have completely worn out.
Consequently, a steel cord where the individual fila-ments thereof are in linear contact with one another, for example, a steel cord of twisted layer structure, has been pro-posed to improve the fatigue resistance of the steel cord.
However, it is known that the tires having steel cords have the disadvantage that, when the tires are scarred on their surfaces, the steel cords are susceptible to rusting due to, for example, rain water entering through the scars. Alter-natively the gas J~ 2 -llS102Z
generated during rubber vulcanization or water vapor vaporized from the water present in the rubber caused by heat generation during driving, can corrode the steel cords at the inside clearances in the steel cord even without any scarring.
To overcome the aforesaid disadvantages it has been proposed to modify the quality of the plating material, apply a resin coating to steel cord, or apply a rustproof agent thereto (Japanese Patent Publication No. 3121/78, etc.). How-ever, these procedures are not satisfactory because inter alia the adhesion of the cords to rubber presents a problem.
It is also known to fill the clearances between the individual cords with unvulcanized rubber by winding filaments around injection-molded rubber, as in Japanese Utility Model Publication No. 40188/72. This procedure has the disadvantage that the manufacturing steps are so complicated that productiv-ity is reduced. With steel cords of twisted layer or simple twisted structure where the filaments are in linear contact with each other, it is hard to fill the clearances with rubber according to such a procedure as above, and since the filaments are in linear contact with one another, it is hard to permeate the rubber even to the inside of cord in the calendering step.
Thus steel cords of excellent fatigue resistance and at the same time corrosion resistance have not yet been obtained.
~lS10~2 According to the present invention there is provided a method for manufacturing a steel cord having excellent fati-gue resistance and corrosion resistance, in which a steel cord formed of a plurality of steel filaments at least outermost layer filaments of which are in linear contact with one another, is treated with a rubber solution obtained by dissolving an un-vulcanized rubber in a solvent having a compatibility with rub-ber at a consistency of 1-20~ before rubberizing by calendering.
The present invention will be illustrated by way of the accompanying drawings in which:
Figs. 1 and 2 are cross-sections of a steel cord to be used in accordance with one embodiment of the present inven-tion and formed of a plurality of steel filaments, the filaments at least in the outermost layer being in linear contact with one another;
Fig. 3 is a schematic view of the process according to one embodiment of the present invention; and Fig. 4 is a graph of strength retainability against a number of bendings of various steel cards.
2Q The surface of the steel filament can be subjected to the necessary treatment for adhesion to rubber. For example, the surface can be plated by brass or zinc or by these metals also containing nickel or cobalt, or by a ternary alloy of copper-cobalt-zinc.
The unvulcanized rubber to be used in the method of the present invention may be natural rubber or synthetic rubber such as synthetic polyisoprene rubber, polybutadiene rubber, or styrene-butadiene rubber, but preferably is the same type of rub-ber as that of the coating rubber. Particularly preferable are natural rubber and synthetic polyisoprene rubber.
The solvent having a compatibility with the rubber used in the method of the present invention is preferably in~ustrial grade gasoline Nos. 1-4, alcohol and ether, and more preferably rubber gasoline of industrial grade gasoline No. 2.
~ _ 4a -The concentration of the rubber dipping solution used in the process of the present invention is 1-20%, preferably 1-15%. Below 1%, an insufficient amount of rubber is deposited in the inside clearances in the steel cord, whereas above 20%, the rubber permeates to the inside of the steel cord with great difficulty. Thus, either case is not preferable.
In the present invention, the rubber dipping solution may be admixed, if necessary, with an antioxidant, filler, vulcanizing agent, vulcanization promotor, vulcanization pro-moting additive, etc., as used in the rubber industry.
Referring specifically to Fig. 3 a steel cord 1 is unwound from feed roll 2 and dipped in a rubber dippinq solution 7 in a tank 6 passing around guide rolls 3, 4 and 5. The dip-ped steel cord 1' is continuously rubberized by calender rolls 8. ~efore rubberizing the dipped steel cord 1', the cord can be wound around a roll and stored.
In the foregoing manner, a steel cord having excellent fatigue resistance and a corrosion resistance can be readily and cheaply produced.
The present invention will be described in more detail by way of the following Examples.
Example 1 Twisted layer structure steel cord of [(1 x 3 + 9 +
15) x 0.175 + 1 x 0.15] each filament of which is brass-plated, as shown in Fig. 1, was used. Rubber solutions were prepared by dissolving an unvulcanized rubber composition shown in Table 1 in rubber gasoline to provide the concentrations there-of of 5, 10 and 15%. Dipping time was 2 seconds each, and after the dipping drying was carried out, and then the result-ing dried steel cord was rubberized by calendering with the unvulcanized rubber composition of Table 1 and finally said rubberized steel cord was vulcanized.
.
~lS102Z
Table l Natural rubber lO0 parts by weight HAF carbon black 50 "
Aroma oil lO "
Stearic acid 3 "
N-phenyl-N'-isopropyl-p-phenylene-diamine l.0 "
N-oxydiethylene-2-benzothiazyl-sulphenamide 0.5 "
Cobalt stearate 4 "
Sulfur 2.5 "
The resulting steel cords were cut in the cross-sectional direction by a diamond cutter, and the cross-section was observed under a microscope to evaluate the permeation degree of the rubber to the inside.
Then, the corrosion resistance of the steel cords thus obtained was determined by a bending fatigue test in which cotton was fixed to a predetermined position on the steel cord under 10% load of cord strength at 80 runs/min. and about l cc of water was injected into the cotton by a syringe every 24 hours. The results are shown in Table 2. For comparison, the steel cords without treatment with the rubber solution were similarly determined.
Table 2 Steel cord species State of rubber Number of bending permeation till cord fracture No dipping treatment ~ ly permeated 247,305 Treatment in 5% Completely 887,763 rubber permeated Treatment in 10% Substantially com-rubber solution pletely permeated 792,542 __ .......... _ .
Treatment in 15% Partially leaving 564,273 rubber solution vacant space :115102Z
It is clear from Table 2 that, in case of the steel cords manufactured according to the present invention, the rub-ber is permeated to the inside of the cords, and thus the corrosion resistance and the fatigue resistance are improved at least twice compared with those of the convention steel cords.
Example 2 Simply twisted structure steel cords of (1 x 5 x 0.25) each filament of which is brass-plated as shown in Fig. 2 was used for evaluation in the same manner as in Example 1. The results are shown in Table 3.
Table 3 Steel cord species State of rubber Number of bending permeation till cord fracture No dipping treatment Hardly permeated 11,927 Treatment in 5% Completely 20,173 rubber solution permeated As is clear in Table 3, the steel cords of the pre-sent invention have considerably improved corrosion resistance and fatigue resistance.
Example 3 Twisted layer structure steel cords of [(1 x 3 + 9 +
15) x 0.175 + 1 x 0.15] each filament of which is brass-plated, as used in Example 1, and twisted layer structure steel cords of [(1 x 3 + 9 + 15) x 0.175 + 1 x 0.15] each filament of which is plated by a ternary alloy of copper-cobalt-zinc (65/5/30 by weight) were treated with 5% rubber solution and then rubber-ized and finally vulcanized in the same manner as in Example 1.
The resulting rubberized steel cord layers were sampled as pieces of 220 mm of length and 50 mm of width, and these samples were subjected to a bending test under conditions of 5% NaCl spraying at a spray pressure of 1 kg/cm2 by a saline water sprayer, a bath temperature of 40C, and a bending angle . ..
llS1022 of 40 cpm. Then, the sample pieces were subjected to a draw-ing test, and the bending fatigue resistance of the cords was evaluated in terms of percent strength retainability on the basis of the cord strength measured before the bending test.
The results were shown in Fig. 4. For comparison, two types of the cords without the dipping treatment were also evaluated.
As clear from Fig. 4, the steel cords of the present invention had a considerably improved fatigue resistance, and particularly the fatigue resistance is synergistically improved in the case of the ternary alloy-plated steel cord.
Claims (8)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method for manufacturing a steel cord which com-prises treating a steel cord formed of a plurality of steel fi-laments at least outermost filaments of which are in linear con-tact with one another, with a rubber solution of an unvulcanized rubber in a solvent having a compatibility with rubber at a consistency of 1 to 20%, before rubberizing said steel cord by calendering.
2. A method according to claim 1, wherein the steel filament is plated with a ternary alloy of copper-cobalt-zinc.
3. A method according to claim 1 or 2, wherein the unvulcanized rubber is natural rubber.
4. A method according to claim 1 or 2, wherein the unvulcanized rubber is synthetic rubber.
5. A method according to claim 1 or 2, wherein the unvulcanized rubber is polyisoprene rubber, polybutadiene rub-ber or styrene-butadiene rubber.
6. A method according to claim 1 or 2, wherein the unvulcanized rubber is natural rubber or synthetic polyisoprene rubber.
7. A method according to claim 1 or 2, wherein the solvent having a compatibility with the rubber is any of indus-trial grade gasoline Nos. 1 to 4, alcohol and ether.
8. A method according to claim 1 or 2, wherein the concentration of the rubber solution is 1 to 15%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP90948/79 | 1979-07-19 | ||
| JP9094879A JPS5615488A (en) | 1979-07-19 | 1979-07-19 | Production of steel cord with excellent antiifatigue and corrosion resistant property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1151022A true CA1151022A (en) | 1983-08-02 |
Family
ID=14012685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000356574A Expired CA1151022A (en) | 1979-07-19 | 1980-07-18 | Method for manufacturing a steel cord |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5615488A (en) |
| CA (1) | CA1151022A (en) |
| DE (1) | DE3027277C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130327467A1 (en) * | 2011-02-14 | 2013-12-12 | Continental Reifen Deutchland GmbH | Method for producing a pneumatic vehicle tire |
| CN109311348A (en) * | 2016-06-17 | 2019-02-05 | 株式会社普利司通 | The processing method of tire enhancing plies cords |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57144105A (en) * | 1981-02-27 | 1982-09-06 | Bridgestone Corp | Pneumatic tire with improved steel cord |
| JPS63132944A (en) * | 1986-11-21 | 1988-06-04 | Toyo Tire & Rubber Co Ltd | Composite material of steel cord with rubber |
| DE3850246T2 (en) * | 1987-10-26 | 1995-01-26 | Sumitomo Electric Industries | METAL AND COMPOSITE OF METAL WITH RUBBER. |
| EP1141098A1 (en) | 1998-10-15 | 2001-10-10 | Continental Aktiengesellschaft | Composite of a vulcanizable rubber composition and cured rubber product |
| US20150368478A1 (en) * | 2012-12-26 | 2015-12-24 | Nv Bekaert Sa | Corrosion inhibiting reagent and resin coated bead wire |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1100929B (en) * | 1954-11-22 | 1961-03-02 | Dunlop Gummi Cie Ag Deutsche | Process for the production of weft threadless rubber calendered cord inserts for further processing in the rubber industry |
| JPS4920941A (en) * | 1972-06-17 | 1974-02-23 | ||
| US3857726A (en) * | 1973-07-05 | 1974-12-31 | Gen Tire & Rubber Co | Adhesive dip for bonding rubber to bright steel wire |
| CA1098269A (en) * | 1975-12-29 | 1981-03-31 | Grover W. Rye | Solid or molten reagent treatment of metal tire cord |
| DE2704190A1 (en) * | 1977-02-02 | 1978-08-03 | Continental Gummi Werke Ag | Protecting metal reinforcements adhering to rubber against corrosion - by short pretreatment with aq. alkali nitrite solns. |
-
1979
- 1979-07-19 JP JP9094879A patent/JPS5615488A/en active Pending
-
1980
- 1980-07-18 DE DE19803027277 patent/DE3027277C2/en not_active Expired
- 1980-07-18 CA CA000356574A patent/CA1151022A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130327467A1 (en) * | 2011-02-14 | 2013-12-12 | Continental Reifen Deutchland GmbH | Method for producing a pneumatic vehicle tire |
| US10272628B2 (en) * | 2011-02-14 | 2019-04-30 | Continental Reifen Deutschland Gmbh | Method for producing a pneumatic vehicle tire |
| CN109311348A (en) * | 2016-06-17 | 2019-02-05 | 株式会社普利司通 | The processing method of tire enhancing plies cords |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5615488A (en) | 1981-02-14 |
| DE3027277C2 (en) | 1985-06-13 |
| DE3027277A1 (en) | 1981-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1144436A (en) | Steel wire reinforcing elements | |
| US4330592A (en) | Composite materials of steel cords and rubber and a method of producing the same | |
| EP2476802B1 (en) | Brass-plated steel cord and steel cord-rubber composite, and tire using the same | |
| EP0188036B1 (en) | Rubber adherable steel reinforcing elements with composite surface coating | |
| EP3006621B1 (en) | Metal cord and rubber composite-body | |
| CA1151022A (en) | Method for manufacturing a steel cord | |
| US2434688A (en) | Regenerated keratin | |
| US4929512A (en) | Metal and composite material made of the metal and rubber | |
| US4966216A (en) | Heavy duty radial tires with metallic carcass ply | |
| KR100389813B1 (en) | Wire rod with a film layer formed on its surface and its manufacturing method, and composite member of elastomeric material using the same | |
| JPH078917B2 (en) | Brass-coated steel element with improved rubber adhesion properties | |
| GB2039580A (en) | Coated steel wire | |
| CA2946266C (en) | Brass-plated steel wire for reinforcing rubber article | |
| US7152644B2 (en) | Rubber reinforcing steel cord, manufacturing method of rubber reinforcing steel cord and pneumatic tire | |
| US6203932B1 (en) | Steel wire for reinforcement of rubber articles, method of manufacturing the same, and steel cord using the same | |
| CA1277630C (en) | Rubber reinforcing material comprising a zinc-plated alloy filament | |
| US5196464A (en) | Rubber compositions | |
| JPS5845365B2 (en) | Tires with improved durability | |
| US20020192489A1 (en) | Method of treating metallic cord | |
| CA2946263C (en) | Brass-plated steel wire for reinforcing rubber article | |
| JP2014162894A (en) | Rubber composition, method of producing rubber-metal composite, rubber-metal composite, tire, industrial belt and rubber roller | |
| NO811236L (en) | Skim stocks. | |
| CN115702271A (en) | Brass coated steel cord with increased surface iron content | |
| US3819399A (en) | Treating metal clad steel wire for application of organic adhesive | |
| JP4351756B2 (en) | Surface treated metal components for reinforced structures for products made from elastomeric materials and products containing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |