US20120103044A1 - Bead wire manufacturing method and manufacturing apparatus - Google Patents

Bead wire manufacturing method and manufacturing apparatus Download PDF

Info

Publication number
US20120103044A1
US20120103044A1 US13/380,998 US201013380998A US2012103044A1 US 20120103044 A1 US20120103044 A1 US 20120103044A1 US 201013380998 A US201013380998 A US 201013380998A US 2012103044 A1 US2012103044 A1 US 2012103044A1
Authority
US
United States
Prior art keywords
wire rod
wiredrawing
wire
bluing
heating
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.)
Abandoned
Application number
US13/380,998
Other languages
English (en)
Inventor
Chikara Takagi
Hidetoshi Shibuya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Shoji Co Ltd
Original Assignee
Fuji Shoji Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Shoji Co Ltd filed Critical Fuji Shoji Co Ltd
Assigned to FUJI SHOJI CO., LTD. reassignment FUJI SHOJI CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAKAGI, CHIKARA, SHIBUYA, HIDETOSHI
Publication of US20120103044A1 publication Critical patent/US20120103044A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of rods or wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/003—Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C9/00—Cooling, heating or lubricating drawing material
    • 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)
    • B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0607—Wires
    • 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)
    • B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
    • B29D2030/483—Treating the bead cores to increase rubber adhesion
    • 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)
    • B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
    • B29D2030/487—Forming devices for manufacturing the beads

Definitions

  • the present invention relates to a manufacturing method and a manufacturing apparatus for manufacturing bead wires used in automotive tyres.
  • a manufacturing process for bead wires which are used in the production of bead cores as reinforcements in automotive tyres comprises a wiredrawing line and a plating line. Specifically, it comprises a wiredrawing line in which a rolled wire rod with micro pearlite structures having been subjected to a patenting treatment is wiredrawn to a predetermined wire diameter by repeating a wiredrawing and a patenting treatment, and a plating line in which the wire rod having been wiredrawn to the predetermined wire diameter is given a bluing treatment to recapture the ductility therein and is further given a plating on the surface thereof with cupper, bronze, brass or the like for a bead wire.
  • Patent Document 1 and Patent Document 2 describe manufacturing methods and manufacturing apparatuses for bead wires (wire rods) of this kind.
  • FIG. 6 shows a prior art manufacturing process for bead wires.
  • a wire rod uncoiled from a supply stand 1 has oxide film removed from its surface at a descaling step 2 and then, is made to pass through a coating liquid adhesion step 3 to adhere lubrication coating liquid to the surface thereof.
  • an area reduction working and a cooling are repeated through a plurality of wiredrawing steps 4 each including an area reduction working step 4 a and a cooling step 4 b , and the wire rod having been machined to be reduced in area to a predetermined wire diameter is coiled by a coiler 5 .
  • the wire rod which was wiredrawn in the wiredrawing line L 1 to the predetermined wire diameter is uncoiled from a supply stand 1 , is blued at a bluing step 6 , and then, scales which have been adhered to the surface of the wire rod through the bluing are removed at an acid pickling step 7 a .
  • the wire rod is water washed at a water washing step 7 b , thereafter is subjected to a plating treatment with copper, bronze, zinc, brass or the like at a plating step 8 , and then, is coiled by a coiler 5 after passing through a water washing step 7 c and a hot water washing step 7 d , whereby a bead wire for tyres is manufactured.
  • a wiredrawing line is constructed to process wire rods one by one, whereas a plating line is constructed to treat wiredrawn wire rods simultaneously by a unit of twenty to thirty-something in view of equipment cost and productivity. Accordingly, in the plating line, the wire rods in the number of twenty to thirty-something are uncoiled from coilers and are fed to pass through a bluing step and a plating step to be wound by coilers thereafter. For this reason, there is required a large-scale bluing facility which has a capability of keeping the wires rods of twenty to thirty-something in a temperature range of 350° C. to 480° C. This causes the expense to the facility to rise as well as causes wastefulness that substantially the same energy is consumed even where wire rods of a fewer number are treated due to a decrease in production volume.
  • the present invention has been made in order to solve the foregoing problems in the prior art, and an object thereof is to provide bead wire manufacturing method and manufacturing apparatus which are capable of effectively utilizing the temperature retained in a wire rod by performing a bluing without cooling down the wire rod having been raised by wiredrawing to a high temperature and which are little in energy loss.
  • the feature of the invention in a bead wire manufacturing method resides in comprising a descaling step of removing oxide on the surface of a wire rod, a coating liquid adhesion step of adhering a coating liquid to the wire rod from which the oxide has been removed, wiredrawing steps of performing area reduction workings on the wire rod with the coating liquid adhered thereto, and a bluing step of bluing the wire rod having been raised to a high temperature through the area reduction working, in a temperature range of 350° C. to 480° C.
  • the wiredrawing steps comprise area reduction steps of performing the area reduction workings by wiredrawing the wire rod and cooling steps of cooling the wire rod having been subjected to the area reduction workings and that the cooling step is omitted from the wiredrawing step right before the bluing step.
  • the feature of the invention in the bead wire manufacturing method according to Claim 3 resides in that in Claim 1 or 2 , the method further comprises a plating step of plating the wire rod having been blued at the bluing step.
  • the feature of the invention in the bead wire manufacturing method according to Claim 4 resides in that in any one of Claims 1 to 3 , the wire rod is made of a high carbon steel containing carbon in a range of 0.59°% or more to 1.1% or less in weight percent and having two-phase structures of ferrite and cementite.
  • the feature of the invention in a bead wire manufacturing apparatus resides in comprising a wiredrawing line for wiredrawing a wire rod made of a high carbon steel to a predetermined wire diameter suitable for bead wire and a plating line for plating the wire rod having been wiredrawn to the predetermined diameter, wherein the wiredrawing line comprises a descaling device for removing oxide on the surface of the wire rod, a coating liquid adhesion device for adhering a coating liquid to the wire rod, wiredrawing devices for performing area reduction workings on the wire rod, and a bluing device for bluing the wire rod having been raised to a high temperature through the area reduction working, in a temperature range of 350° C. to 480° C.
  • the feature of the invention in the bead wire manufacturing apparatus according to Claim 6 resides in that in Claim 5 , the wiredrawing line is constructed to process the wire rods one by one, while the plating line is constructed to process the wire rods having been wiredrawn by the wiredrawing line, simultaneously by a unit of several tens.
  • the feature of the invention in the bead wire manufacturing apparatus according to Claim 7 resides in that in Claim 5 or 6 , the bluing device is provided with a heating device for heating to the temperature range the wire rod having been raised to the high temperature through the area reduction working.
  • the heating device is provided with a rotatable heating drum for winding therearound the wire rod having been raised to the high temperature through the area reduction working and a heating coil built in the heating drum for heating the wire rod having been wound around the heating drum.
  • the heating device is provided with a heating furnace for performing an electric current heating or an induction heating on the wire rod having been heated through the wiredrawing.
  • the bluing step is provided for bluing the wire rod, having been raised to the high temperature through the area reduction working at the wiredrawing step, in the temperature range of 350° C. to 480° C., it is possible to perform the bluing by effectively utilizing the working-generated heat retained in the wire rod having been raised to the high temperature through the area reduction working, so that the bluing can be done efficiently at a little energy loss.
  • the wiredrawing steps comprise the area reduction working steps of performing the area reduction workings by wiredrawing the wire rod and the cooling steps of cooling the wire rod having been subjected to the area reduction workings, and the cooling step is omitted from the wiredrawing step right before the bluing step.
  • the wire rod having been raised to the high temperature through the area reduction working at the area reduction working step can be cooled to be sent out to the next area reduction working step, so that the wire rod can be restrained from becoming fragile.
  • the wire rod having been raised to the high temperature through the area reduction working is sent to the bluing step as it is at the high temperature without being cooled down, the bluing can be done by effectively utilizing the working-generated heat retained in the wire rod.
  • the method further comprises the plating step of plating the wire rod having been blued at the bluing step, the adhesion force of a bead wire with surrounding rubber can be enhanced thanks to the plating on the wire rod.
  • the wire rod is made of the high carbon steel containing carbon in the range of 0.59% or more to 1.1% or less in weight percent and having the two-phase structures of ferrite and cementite.
  • a tensile strength required for bead wires can be secured through the area reduction workings at the wiredrawing steps.
  • the wiredrawing line is provided with the bluing device for bluing in the temperature range of 350° C. to 480° C. the wire rod having been raised to the high temperature through the area reduction working by the wiredrawing device.
  • the bluing can be done by effectively utilizing the working-generated heat retained in the wire rod which has been raised to the high temperature through the area reduction working by the wiredrawing device, so that the bead wire manufacturing apparatus being small in energy loss can be realized.
  • the wiredrawing line is constructed to process the wire rods one by one, while the plating line is constructed to process the wire rods having been wiredrawn in the wiredrawing line, simultaneously by a unit of several tens.
  • the bluing device is sufficient to be a small and simple device which is required to blue one wire rod only, so that the cost taken for the bluing can be reduced.
  • the bluing device is provided with the heating device for heating the wire rod having been raised to the high temperature through the area reduction working, up to the temperature range of 350° C. to 480° C.
  • the heating device is sufficient to be a small and simple device which is required to blue one wire rod only, so that the cost taken for the bluing can be reduced, and hence, that the facility expense for the bead wire manufacturing apparatus can be reduced.
  • the heating device is provided with the rotatable heating drum for winding therearound the wire rod having been raised to the high temperature through the area reduction working and the heating coil built in the heating drum for heating the wire rod having been wound around the heating drum.
  • the wire rod having been raised to the high temperature through the area reduction working can easily be heated up to the predetermined temperature by the heating drum which has been heated by the heating coil.
  • the heating device is provided with the heating furnace for performing the electric current heating or the induction heating on the wire rod having been heated through the wiredrawing.
  • the wire rod having been raised to the high temperature through the area reduction working can easily be heated by the small and simple heating furnace to the predetermined temperature.
  • FIG. 1 is a process chart showing a manufacturing process for manufacturing bead wires in one embodiment according to the present invention.
  • FIG. 2 is an external view showing respective one examples of wiredrawing devices and a bluing device.
  • FIG. 3 is a sectional view showing specific examples of the wiredrawing devices and the bluing device.
  • FIG. 4 is a sectional view taken along the line 4 - 4 in FIG. 3 .
  • FIG. 5 is a sectional view showing specific examples of a wiredrawing device and a bluing device in a second embodiment according to the present invention.
  • FIG. 6 is a process chart showing a bead wire manufacturing method in the prior art.
  • FIG. 1 shows a manufacturer process for manufacturing bead wires.
  • the manufacturing process comprises a wiredrawing line L 1 for wiredrawing a wire rod made of a high carbon steel to a predetermined wire diameter suitable for bead wires and a plating line L 2 for plating the wire rod which has been wiredrawn to the predetermined diameter.
  • the wire rod made of the high carbon steel which is uncoiled from a supply stand 11 is subjected to a descaling step 12 to remove an oxide film from its surface, then is made to pass through a coating liquid adhesion step 13 to adhere lubrication coating liquid to the surface of the wire rod, and thereafter, is made to pass through a drying furnace (not shown) for drying the lubrication coating liquid.
  • a drying furnace not shown
  • a bluing is carried out at a bluing step 17 in a temperature range of 350° C. to 480° C.
  • the wire rod heated to the predetermined temperature range through the bluing is cooled down at a cooling step 18 to a temperature close to the room temperature for coiling and is wound by a coiler 19 into a coil fashion.
  • the wire rod when the wire rod is subjected to the area reduction working at the area reduction working step 14 of the wiredrawing step 16 , the wire rod rises to a high temperature due to working-generated heat. If the area reduction working were repeated at such a high temperature, the wire rod would become hard and fragile and hence would become easier to break. Therefore, the rod wire at a high temperature is cooled at a cooling step 15 and is fed to the next wiredrawing step 16 . However, at a final wiredrawing step 16 , in other words, at a wiredrawing step 16 just before the bluing step 17 , the cooling step 15 is omitted. As a result, the wire rod on which the area reduction working was carried out at the final wiredrawing step 16 is fed to the bluing step 17 as it is at the high temperature without being cooled down, and is blued in the temperature range of 350 to 480° C.
  • a raw material for bead wire is made of a high carbon steel containing carbon in a range of 0.59% or more through 1.1% or less in weight percent and having two-phase structures of ferrite and cementite. Then, the high carbon steel wire of a diameter in a range of 5.5-6.5 mm for example is wiredrawn to a final wire diameter in a range of 2.20-0.94 mm in diameter suitable for bead wire by being repetitively subjected to the area reduction workings in the wiredrawing line L 1 .
  • the wire rod which has been wiredrawn to the predetermined diameter and has been blued in the wiredrawing line L 1 is uncoiled from a supply stand 21 .
  • the scale adhered to the surface of the wire rod through the aforementioned bluing is removed at an acid pickling step 22 , and the wire rod is water washed at a water washing step 23 .
  • the wire rod is fed to pass through an water washing step 25 and a hot-water washing step 26 and is coiled into a coiler 27 as a bead wire, whereby the bead wire is manufactured.
  • the descaling step 12 , the coating liquid adhesion step 13 , the area reduction working steps 14 , the cooling steps 15 , the wiredrawing steps 16 , the bluing step 17 , the cooling step 18 , the acid pickling step 22 , the water washing step 23 , the plating step 24 , the water washing step 25 , and the hot-water washing step 26 which are all aforementioned constitute a descaling device, a coating liquid adhesion device, area reduction working devices, cooling devices, wiredrawing devices, a bluing device, a cooling device, an acid pickling tub, a water washing tub, a plating tub, a water washing tub, and a hot-water washing tub in the bead wire manufacturing apparatus, respectively.
  • the wire rods are processed one by one, whereas in the plating line L 2 , the wire rods which were wiredrawn in the wiredrawing line L 1 are simultaneously processed by a unit of twenty to thirty-something, that is, by a unit of several tens.
  • a plurality of lines may be arranged, if need be.
  • the bluing step 17 can use a small and simple equipment which is required to blue one wire rod.
  • the wire rod which has risen to a high temperature through the area reduction working at the final wiredrawing step 16 is fed to the bluing step 17 as it is at the high temperature without being cooled down, the bluing of the wire rod can be done by effectively utilizing the working-generated heat generated through the area reduction working. Therefore, it becomes possible to carry out the bluing efficiently at a little energy loss.
  • FIGS. 2 and 3 show specific examples of the wiredrawing devices 16 and the bluing device 17 in the wiredrawing line L 1 .
  • the wire rod W which has been subjected to the area reduction working by the area reduction working device 14 with a die is spirally wound around, and in contact with, the outer circumference of a rotatable cooling drum 31 (refer to FIG. 3 ) constituting the cooling device 15 by a predetermined number of turns.
  • the wire rod W is cooled down to a temperature close to the room temperature through the heat exchange function between itself and the cooling drum 31 .
  • the wire rod W cooled down by the cooling device 15 is fed to the next wiredrawing device 16 to have the area reduction working repetitively carried out thereon.
  • the wire rod W on which the area reduction working has been carried out by the final wiredrawing device 16 to the final diameter is fed to a heating device 40 constituting the bluing device 17 , as a shown in FIG. 3 , and is heated to a temperature (in a range of 350 to 480° C.) suitable for bluing. That is, the wire rod W which has risen to the high temperature through the area reduction working by the final wiredrawing device 16 is fed to the bluing device 17 as it is at the high temperature without being cooled down.
  • the heating device 40 is provided with a heating drum 41 taking a ring shape, and the wire rod W fed from the final wiredrawing device 16 is spirally wound around, and in contact with, the outer circumference of the heating drum 41 by a predetermined number of turns.
  • a rotational shaft 42 is connected to a lower end of the heating drum 41 concentrically with the heating drum 41 .
  • the rotational shaft 42 is rotatably supported in a support table 44 through bearings 43 about a vertical axis.
  • a gear 45 A is fixed on the rotational shaft 42 , and a drive motor 46 is connected to a gear 45 B meshing with the gear 45 A, so that the heating drum 41 is rotationally driven by the drive motor 46 .
  • the heating drum 41 has a plurality of heater coils 47 built (embeded) therein to be arranged on a circumference thereof, and these heater coils 47 are connected to a conductive cable (not shown) passing through the rotational shaft 42 and is connected to a heater power supply through a slip spring 48 .
  • the heater coils 47 are heated by the heater power supply, and the heating drum 41 is heated by the heater coils 47 . Therefore, the wire rod W can be heated to a predetermined temperature suitable for bluing through the heat exchange function between the heating drum 41 and the wire rod W which is spirally wound around the circumference of the heating drum 41 .
  • the heating temperature conveyed to the wire rod W can be controlled in dependence on the number of turns of the wire rod W around the heating drum 41 as well as on the time during which it is held turned therearound.
  • the heating device 40 constituting the bluing device 17 suffices to be a small and simple device which is required to blue one wire rod, the bluing can be done by the heating device 40 being low in cost. Furthermore, the wire rod W which has risen to the high temperature through the area reduction working by the final wiredrawing device 16 is fed to the heating device 40 (the bluing device 17 ) as it is at the high temperature without being cooled down. As a result, the amount of heat that is required to heat the wire rod W up to the temperature suitable for bluing suffices to be a little. In this manner, since the bluing can be done by effectively utilizing the working-generated heat retained in the wire rod W, it can be realized to carry out the bluing efficiently at a little energy loss.
  • Numeral 49 in FIG. 3 denotes heat insulation means for insulating the heating drum 41 so that heat therefrom is not conveyed to the bearings 43 supporting the rotational shaft 42 .
  • the heat insulation means 49 can be constructed as, for example, means for supplying cooling water to a boundary portion between the heating drum 41 and the rotational shaft 42 .
  • the cooling drum 31 of the cooling device 15 takes a ring shape, and a rotational shaft 32 connected to a lower end of the cooling drum 31 is rotatably supported in a support table 34 through bearings 33 about a vertical axis.
  • a gear 35 A is fixed on the rotational shaft 32
  • a drive motor 36 is connected to a gear 35 B meshing with the gear 35 A, so that the cooling drum 31 can be rotationally driven by the drive motor 36 .
  • the cooling drum 31 has a cooling space portion 37 taking an annular shape, for example, and the cooling space portion 37 is formed to be supplied with a cooling medium such as water or the like.
  • the cooling drum 31 is cooled down by the cooling medium supplied to the cooling space portion 37 , so that the wire rod W is cooled down to a temperature close to the room temperature through the heat exchange function between the cooling drum 31 and the high temperature wire rod W spirally wounded around the outer circumference of the cooling drum 31 .
  • the cooling temperature conveyed to the wire rod W can be controlled in dependence on the number of turns of the wire rod W around the cooling drum 31 as well as on the time during which it is held turned therearound.
  • the wire rod W having been heated through the bluing is cooled down by the cooling device 18 (refer to FIG. 2 ) for coiling into the coiler 19 .
  • the cooling device 18 is constructed by a cooling drum which is similar to the cooling device 15 shown in FIG. 3 .
  • a rotational shaft for the cooling drum in this device suffices to be one that is rotatable freely only.
  • the wire rod W having risen to high temperatures through the area reduction working at each area reduction working device 14 is cooled down by each cooling drum 31 and is fed to the next area reduction working device 14 , while the wire rod W having risen to a high temperature through the area reduction working at the final area reduction device 14 is heated by the heating drum 41 to be blued in the temperature range of 350 to 480° C.
  • the wire rod W having been subjected to the area reduction working by the final wiredrawing device 16 in other words, by the wiredrawing device 16 just before the bluing device 17 is blued by being fed to the bluing device 17 as it is at the high temperature without being cooled down.
  • the heating device 40 constituting the bluing device 17 suffices to be a small and simple device which is required to blue one wire rod.
  • the bluing can be done by effectively utilizing the working-generated heat that is retained in the wire rod W having risen to the high temperature through the area reduction working at the final wiredrawing device 16 , and therefore, it is possible to carry out the bluing efficiently at a little energy loss.
  • FIG. 5 shows a second embodiment according to the present invention. It differs from the first embodiment in that while the wire rod W in the first embodiment is heated and blued by being wound around the outer circumference of the heating drum 41 , the wire rod W in the second embodiment is blued by passing through a heating device comprising a heating furnace 50 for electric current heating or induction heating.
  • the second embodiment also differs in that since it is unable to draw the wire rod W as the heating drum 41 in the bluing device 17 does, a cooling device 18 for cooling down the blued wire rod W is given a function of drawing the wire rod W.
  • the second embodiment is the same as the first embodiment in other respects. Therefore, the following description will be mainly made regarding the respects in which the second embodiment differs from the first embodiment, and description of the same components will be omitted as being designated by the same reference numerals.
  • the wire rod W which has been subjected to the area reduction working to a final diameter by a final wiredrawing device 16 is heated to a temperature range of 350 to 480° C. to be blued as a result of being made to pass at a predetermined speed through the heating device comprising the heating furnace 50 for electric current heating or induction heating.
  • a cooling device 18 for cooling the wire rod W having been blued is provided with a cooling drum 31 taking a ring shape, and the wire rod W is spirally wound around, and in contact with, the outer circumference of the cooling drum 31 .
  • a rotational shaft 32 is concentrically connected to the lower end of the cooling drum 31 and is rotatably supported in a support table 34 through bearings 33 about a vertical axis.
  • a gear 35 A is fixed on the rotational shaft 32 , and a drive motor 36 is connected to a gear 35 B meshing with the gear 35 A, so that the cooling drum 31 is rotationally driven by the drive motor 36 .
  • a cooling space portion 37 is formed in the cooling drum 31 , and a cooling medium such as water or the like is supplied to the cooling space portion 37 to cool down the cooling drum 31 . Therefore, the wire rod W is cooled down to a temperature close to the room temperature through the heat exchange function between the cooling drum 31 and the high temperature wire rod W which is spirally wound around the outer circumference of the cooling drum 31 .
  • the wire rod W passing through the wiredrawing line L 1 is drawn and is fed to pass at a predetermined speed through the heating furnace 50 for electric current heating or induction heating, whereby the wire rod W is blued.
  • the blued wire rod W is spirally wound around the cooling drum 31 of the cooling device 18 , and heat exchange is carried out between the cooling drum 31 and the blued wire rod W. Consequently, the wire rod W having been heated by the heating furnace 50 is cooled down.
  • the heating furnace 50 which performs the electric current heating or the induction heating on the wire rod W for bluing suffices to be a small and simple device that is required to blue one wire rod.
  • the bluing can be done by effectively utilizing the working-generated heat that is retained in the wire rod W having risen to the high temperature through the area reduction working, and therefore, it becomes possible to perform the bluing efficiently at a little energy loss.
  • the blued wire rod is bronze-plated.
  • the plating can be done as zinc-plating, copper-plating, brass-plating or the like.
  • the cooling devices 15 ( 18 ) are constructed by the cooling drums 31 and that the heating device 40 constituting the bluing device 17 is constructed by the heating drum 41 or the heating furnace 50 such as electric current heating furnace, induction heating furnace or the like.
  • the present invention is not necessarily limited to the constructions described in the embodiments.
  • the present invention has been described based on the embodiments.
  • the present invention is not limited to the constructions described in the embodiments and can take various forms without departing from the gist of the present invention described in the patent claims.
  • Bead wire manufacturing method and manufacturing apparatus according to the present invention are suitable for manufacturing bead wires which are used in producing bead cores being reinforcements for automotive tyres.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Extraction Processes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Wire Processing (AREA)
US13/380,998 2009-07-27 2010-06-08 Bead wire manufacturing method and manufacturing apparatus Abandoned US20120103044A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009-174341 2009-07-27
JP2009174341 2009-07-27
PCT/JP2010/059654 WO2011013445A1 (ja) 2009-07-27 2010-06-08 ビードワイヤ製造方法および製造装置

Publications (1)

Publication Number Publication Date
US20120103044A1 true US20120103044A1 (en) 2012-05-03

Family

ID=43529109

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/380,998 Abandoned US20120103044A1 (en) 2009-07-27 2010-06-08 Bead wire manufacturing method and manufacturing apparatus

Country Status (7)

Country Link
US (1) US20120103044A1 (enrdf_load_stackoverflow)
JP (1) JPWO2011013445A1 (enrdf_load_stackoverflow)
KR (1) KR20120037412A (enrdf_load_stackoverflow)
CN (1) CN102470416A (enrdf_load_stackoverflow)
DE (1) DE112010003085T8 (enrdf_load_stackoverflow)
IN (1) IN2012DN01206A (enrdf_load_stackoverflow)
WO (1) WO2011013445A1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433752A (zh) * 2013-07-25 2013-12-11 张家港市胜达钢绳有限公司 一种轮胎钢丝生产装置
US20170021402A1 (en) * 2015-07-23 2017-01-26 Ford Motor Company Device for scraping debris from metal wire
CN114247768A (zh) * 2021-12-30 2022-03-29 重庆市庆港钢纤维有限公司 一种生产端钩型钢纤维的设备及方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5653738B2 (ja) * 2010-12-10 2015-01-14 株式会社ブリヂストン 高炭素鋼線の製造方法およびその製造装置
JP6334541B2 (ja) 2013-08-26 2018-05-30 不二商事株式会社 汚れ除去装置および除去方法
JP6490572B2 (ja) * 2015-12-22 2019-03-27 株式会社ブリヂストン タイヤ製造装置及びタイヤ製造方法
CN106079503B (zh) * 2016-06-30 2018-03-30 潍坊市跃龙橡胶有限公司 一种全钢载重子午线轮胎的三角胶热贴压平工艺
CN111152122A (zh) * 2020-01-19 2020-05-15 宾科汽车紧固件（昆山）有限公司 一种用于棒料的搓光方法及装置

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US651461A (en) * 1899-10-14 1900-06-12 John Jenkins Annealing and bluing furnace.
US2606650A (en) * 1945-04-23 1952-08-12 Martin E Evans Continuous wire drawing machine
US2868680A (en) * 1952-03-03 1959-01-13 Devex Corp Method of pickling and coating stainless steel in the same bath
US3630057A (en) * 1968-04-19 1971-12-28 Boehler & Co Ag Geb Process and apparatus for manufacturing copper-plated steel wire
JPS5897419A (ja) * 1981-12-02 1983-06-09 Hitachi Cable Ltd 伸線加工方法および装置
JPH062049A (ja) * 1992-06-17 1994-01-11 Kanai Hiroyuki ビードワイヤの製造方法およびその装置
JPH1080716A (ja) * 1996-09-05 1998-03-31 Nippon Steel Corp 伸び特性に優れた高強度高炭素鋼線の製造方法
US20060086436A1 (en) * 2004-10-25 2006-04-27 Steve Galloway Tempered plated wire and methods of manufacture
US20060123862A1 (en) * 2002-12-23 2006-06-15 Federico Pavan Metal wire coated with a layer of metal material intended to reinforce elastomeric materials and methods for producing the same
JP2008284581A (ja) * 2007-05-16 2008-11-27 Kobe Steel Ltd 線材の製造方法および伸線設備
US20090007997A1 (en) * 2007-07-05 2009-01-08 Thomas Wilson Tyl Methods and Systems for Preventing Iron Oxide Formulation and Decarburization During Steel Tempering
US20090308503A1 (en) * 2006-07-14 2009-12-17 Tyl Thomas W Rod or wire manufacturing system, related methods, and related products
US20120064357A1 (en) * 2009-06-05 2012-03-15 Fuji Shoji Co., Ltd. Tyre bead wire and process for production thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2562967B2 (ja) * 1989-06-23 1996-12-11 東京製綱株式会社 鋼線の電気めっき方法
JP2618564B2 (ja) * 1992-06-24 1997-06-11 新日本製鐵株式会社 Ｐｃ鋼材の製造方法
JPH084836B2 (ja) * 1993-04-26 1996-01-24 株式会社小島電機製作所 ワイヤ加温装置
JP4145136B2 (ja) * 2002-12-16 2008-09-03 日鉄東海鋼線株式会社 鋼線の連続処理方法
JP2006028664A (ja) * 2004-07-14 2006-02-02 Times Engineering:Kk 防錆被覆鋼撚線の製造方法
JP2007167878A (ja) * 2005-12-20 2007-07-05 Kobe Steel Ltd 高炭素鋼線の製造方法
JP5052029B2 (ja) * 2006-04-11 2012-10-17 株式会社ブリヂストン 軽量で延性に優れたビード用ワイヤおよびその製造方法ならびに軽量タイヤ

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US651461A (en) * 1899-10-14 1900-06-12 John Jenkins Annealing and bluing furnace.
US2606650A (en) * 1945-04-23 1952-08-12 Martin E Evans Continuous wire drawing machine
US2868680A (en) * 1952-03-03 1959-01-13 Devex Corp Method of pickling and coating stainless steel in the same bath
US3630057A (en) * 1968-04-19 1971-12-28 Boehler & Co Ag Geb Process and apparatus for manufacturing copper-plated steel wire
JPS5897419A (ja) * 1981-12-02 1983-06-09 Hitachi Cable Ltd 伸線加工方法および装置
JPH062049A (ja) * 1992-06-17 1994-01-11 Kanai Hiroyuki ビードワイヤの製造方法およびその装置
JPH1080716A (ja) * 1996-09-05 1998-03-31 Nippon Steel Corp 伸び特性に優れた高強度高炭素鋼線の製造方法
US20060123862A1 (en) * 2002-12-23 2006-06-15 Federico Pavan Metal wire coated with a layer of metal material intended to reinforce elastomeric materials and methods for producing the same
US20060086436A1 (en) * 2004-10-25 2006-04-27 Steve Galloway Tempered plated wire and methods of manufacture
US20090308503A1 (en) * 2006-07-14 2009-12-17 Tyl Thomas W Rod or wire manufacturing system, related methods, and related products
JP2008284581A (ja) * 2007-05-16 2008-11-27 Kobe Steel Ltd 線材の製造方法および伸線設備
US20090007997A1 (en) * 2007-07-05 2009-01-08 Thomas Wilson Tyl Methods and Systems for Preventing Iron Oxide Formulation and Decarburization During Steel Tempering
US20120064357A1 (en) * 2009-06-05 2012-03-15 Fuji Shoji Co., Ltd. Tyre bead wire and process for production thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433752A (zh) * 2013-07-25 2013-12-11 张家港市胜达钢绳有限公司 一种轮胎钢丝生产装置
US20170021402A1 (en) * 2015-07-23 2017-01-26 Ford Motor Company Device for scraping debris from metal wire
US10279384B2 (en) * 2015-07-23 2019-05-07 Ford Motor Company Device for scraping debris from metal wire
US11027321B2 (en) 2015-07-23 2021-06-08 Ford Motor Company Device for scraping debris from metal wire
CN114247768A (zh) * 2021-12-30 2022-03-29 重庆市庆港钢纤维有限公司 一种生产端钩型钢纤维的设备及方法

Also Published As

Publication number Publication date
CN102470416A (zh) 2012-05-23
DE112010003085T5 (de) 2012-09-27
IN2012DN01206A (enrdf_load_stackoverflow) 2015-04-10
WO2011013445A1 (ja) 2011-02-03
JPWO2011013445A1 (ja) 2013-01-07
DE112010003085T8 (de) 2012-10-11
KR20120037412A (ko) 2012-04-19

Similar Documents

Publication Publication Date Title
US20120103044A1 (en) Bead wire manufacturing method and manufacturing apparatus
CN86101419A (zh) 多线感应加热
CN102820101B (zh) 大长度矩形空心导线加工方法
CN111627618B (zh) 一种汽车油冷驱动电机用漆包线生产加工工艺
CN102449179A (zh) 胎圈钢丝及其生产方法
CN201473564U (zh) 电磁感应加热装置
US3630057A (en) Process and apparatus for manufacturing copper-plated steel wire
CN110382128A (zh) 电线及其制造方法
CN1833813A (zh) 线状铜母材的制造方法以及卷绕装置
CN112658050A (zh) 一种铜包铝线的加工工艺
CN103433752A (zh) 一种轮胎钢丝生产装置
US3171876A (en) Apparatus for continuously heat treating wire and the like
CN108779541B (zh) 将有色金属及其合金的线材转换成高伸长率和退火状态的线的方法
CN103779066B (zh) 阳极化线圈及其制造方法
CN202717821U (zh) 轴类线材在线光亮退火生产线
CN214348630U (zh) 一种节能高效的金属线材热轧生产线
CN101733617B (zh) 双金属包覆方法
CN113913890A (zh) 回火胎圈钢丝的一体化生产方法和生产线
CN212442630U (zh) 用于拉拔焊丝的防断裂拉丝机
CN203830438U (zh) 一种前置式铜杆在线中间退火节能拉丝机
CN202671586U (zh) 针布高频感应退火装置
CN112474796B (zh) 一种节能高效的金属线材热轧生产线及其生产工艺
CN106399985A (zh) 一种金属线材动态磷化装置及方法
CN112071510A (zh) 自动化电缆成型方法及设备
CN119811789B (zh) 一种铝电磁线及其生产方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: FUJI SHOJI CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKAGI, CHIKARA;SHIBUYA, HIDETOSHI;SIGNING DATES FROM 20111205 TO 20111209;REEL/FRAME:027461/0694

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION