CN102686337A - Process for producing copper alloy wire containing active element - Google Patents
Process for producing copper alloy wire containing active element Download PDFInfo
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- CN102686337A CN102686337A CN201180005192XA CN201180005192A CN102686337A CN 102686337 A CN102686337 A CN 102686337A CN 201180005192X A CN201180005192X A CN 201180005192XA CN 201180005192 A CN201180005192 A CN 201180005192A CN 102686337 A CN102686337 A CN 102686337A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/059—Mould materials or platings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Continuous Casting (AREA)
Abstract
Disclosed is a process for producing a copper alloy wire containing an active element, the process comprising: a molten-copper formation step in which a raw copper material is melted to form molten copper; an active-element addition step in which an active element is added to the molten copper; a holding step in which the molten copper is held in a casting furnace; and a casting step in which a cast is continuously produced with a casting die connected to the casting furnace. The casting die has been connected to the casting furnace through a heat insulation member on the vertically lower side of the casting furnace. In the casting step, a pressure is applied toward the inside of the casting die to supply the molten copper to the casting die, and the molten copper is cooled and solidified in the casting die.
Description
Technical field
The present invention relates to be made up of the copper alloy that contains Cr, Zr, Si etc., Electric slips the manufacturing approach of the middle high-intensity copper alloy wires that use such as lead.
The application is incorporated herein its content based on advocating priority 2010-14397 number in the special hope of the Japan of japanese publication on January 26th, 2010.
Background technology
In the past, slip the raw material of lead etc. as Electric, fine copper or contain the copper wires of the copper alloy etc. of Sn is widely used.These copper wires for example use patent documentation 1 and the continuous casting machine shown in the patent documentation 2 to make.In patent documentation 1 and the continuous casting machine shown in the patent documentation 2, foundry furnace directly is connected with casting mold, in casting mold, solidifies the ingot casting that obtains to pulling out above horizontal direction, the vertical direction or below the vertical direction.
In this continuous casting machine,, therefore be particularly suitable for making wire rod owing to can make ingot casting continuously than minor diameter.
In recent years, as the lead that slips of used for high-speed railway such as the Shinkansen, require by with specific strength is higher and copper alloy that electric conductivity is good constitutes mutually in the past wire rod.
Wherein, as intensity height and the good copper alloy of electric conductivity, can enumerate the copper alloy that for example contains Cr, Zr, Si etc.Contain in the copper alloy of these elements, through carrying out suitable heat treatment, the precipitate particle is dispersed in the parent phase of copper, can realize the raising of intensity and guaranteeing of electric conductivity.
The wire rod of the copper alloy of this Cr of containing, Zr, Si etc. was made in the past as follows: make the big ingot casting of sectional area that is called cake or billet, this ingot casting is carried out hot-working, cold working, thus the wire rod of manufactured copper alloy.
Yet, make the big ingot casting of sectional area, when then carrying out hot-working or cold working and make wire rod, the length of resulting wire rod receives the restriction of ingot casting size, therefore can not obtain long wire rod.In addition, the problem that has the production efficiency difference.
Therefore, the wire rod that in patent documentation 3, discloses the copper alloy that will contain Cr, Zr etc. in the horizontal direction, above the vertical direction or pull out below the vertical direction, thereby make the technological thought of the wire rod of minor diameter continuously.That is, proposed through the wire rod of the copper alloy that contains Cr, Zr etc. being cast like patent documentation 1, the continuous casting machine shown in 2.
In addition, the technology of making the wire rod of the copper alloy that contains Cr, Zr through the horizontal continuous casting machine that uses heated mold is disclosed in patent documentation 4.
Yet in the continuous casting machine of patent documentation 1 and patent documentation 2 expressions, casting mold is made up of the excellent graphite (graphite) of solid lubrication property usually, and the casting mold that is made up of this graphite directly contacts with the motlten metal in the foundry furnace.
Wherein, elements such as Cr, Zr, Si are the reactive high active element with graphite.Therefore, elements (active element) such as the Cr in casting mold and the molten copper, Zr, Si reactions generates carbide, and the bonding or casting mold of ingot casting that is cast and casting mold shifts to an earlier date loss, thereby can not cast long-term and stably.
In addition, in the horizontal continuous casting machine of patent documentation 1,2 records,, can receive the influence of gravity when therefore in casting mold, solidifying owing on general horizontal direction, pull out ingot casting.In addition, between casting mold and ingot casting, produce the gap that is called air-gap owing to solidification shrinkage, in horizontal continuous casting machine, different with lower side air-gap amount at the upper side of ingot casting.Therefore, different with the lower side cooling velocity at the upper side of ingot casting, the quality of the ingot casting that is made up of the copper alloy that contains Cr, Zr, Si etc. might be unstable.In addition, as stated, owing to produce the loss in advance of the bonding or casting mold of ingot casting and casting mold, the surface quality variation of ingot casting perhaps becomes difficult from pulling out of casting mold, thereby can not stably cast.
In patent documentation 3, the wire rod that discloses the copper alloy that will contain Cr, Zr etc. is in the horizontal direction, vertical direction top or vertical direction below pull out, thus the thought of making the wire rod of minor diameter continuously.Yet, as stated, in continuous casing in the past, can not make the wire rod of the copper alloy that contains Cr, Zr, Si etc. continuously.
In addition, in patent documentation 4, disclose, suppressed the reaction of graphite and Cr, Zr isoreactivity element, made the wire rod of the copper alloy that contains Cr, Zr etc. through horizontal continuous casting machine continuously through using heated mold.Yet because graphite casting mould itself contacts with the molten copper of high temperature, it is severe that oxidation loss becomes.In addition, when using heated mold,, therefore there is the problem that to enhance productivity owing to be difficult for increasing the speed of pulling out of ingot casting.Further, in this patent documentation 4,, therefore also there be influence, the instability quality problem that receives gravity owing to pull out ingot casting in general horizontal direction.
Patent documentation 1: japanese kokai publication hei 06-226406 communique
Patent documentation 2: japanese kokai publication sho 61-209757 communique
Patent documentation 3: TOHKEMY 2006-138015 communique
Patent documentation 4: the special fair 08-000956 communique of Japan
Summary of the invention
In view of this, the objective of the invention is to, the manufacturing approach of can be effectively and stably making the copper alloy wire that contains active element of the copper alloy wire that is made up of the copper alloy that contains Cr, Zr, Si isoreactivity metal is provided.
In order to solve this problem, to reach above-mentioned purpose, a scheme of the present invention has following necessary condition.
The manufacturing approach of the copper alloy wire that contains active element that a scheme of the present invention relates to has: the molten copper that the copper raw material fusion is generated molten copper generates operation; The active element that in said molten copper, adds active element adds operation; Said molten copper is remained on the maintenance operation in the foundry furnace; With the casting process of making ingot casting through the casting mold that is connected with said foundry furnace continuously; Said casting mold is connected with the vertical direction lower side of said foundry furnace through heat insulating member; In said casting process; In said casting mold, exert pressure and said molten copper is supplied in the said casting mold, in said casting mold, make said molten copper cooling, solidify.
The said copper alloy wire that contains active element is made up of the copper alloy that contains active element.
In the manufacturing approach of the copper alloy wire that contains active element that a scheme of the present invention relates to, can also the temperature of said casting mold be remained on below 450 ℃.
The temperature of the said molten copper of said heat insulating member part can also be set at the fusing point that is higher than said molten copper.
In said casting process, can also make the head of molten copper in the foundry furnace of upper end of the said casting mold of distance is more than the 100mm.
The sectional area ratio Sf/Sc of the sectional area Sf of the sectional area Sc of the horizontal direction of said casting mold and the horizontal direction of said foundry furnace can also be for more than 5.
Continuous melting furnace can also be set at the leading portion of said foundry furnace and keep stove, will generate the said molten copper that generates in the operation at said molten copper and supply to continuously in the said foundry furnace.
In the manufacturing approach of the copper alloy wire that contains active element that a scheme of the present invention relates to,, can prevent that therefore casting mold is heated to the molten copper equal temperature inner with foundry furnace owing between casting mold and foundry furnace, set heat insulating member.Therefore, can suppress the reaction of casting mold and Cr, Zr, Si isoreactivity element.In addition,, also can near the temperature maintenance of the molten copper the casting mold in the foundry furnace be got highly, can stably cast even suppress the temperature of casting mold lower.
Further, in casting process, in casting mold, exert pressure and molten copper is supplied in the casting mold, make molten copper in casting mold, cool off, solidify.Therefore, as stated,, also can supply with molten copper effectively to casting mold, can stably cast by foundry furnace even between foundry furnace and casting mold, accompany heat insulating member.In addition, because casting mold is provided in the vertical direction lower side of foundry furnace, utilize the head that remains on the molten copper in the foundry furnace can be effectively to exerting pressure in the casting mold.
Wherein, the temperature of preferred casting mold, be that the temperature at maximum temperature position in the casting mold remains on below 450 ℃.
At this moment, remain on below 450 ℃, can suppress the loss that shifts to an earlier date of casting mold through cooling casting mold, the temperature that will form maximum temperature position in the casting mold, and can inhibition and the reaction of Cr, Zr, Si isoreactivity element.When particularly the part of casting mold is made up of graphite, can suppress the oxidation loss of casting mold effectively.In addition, casting mold is connected through heat insulating member with foundry furnace, even therefore casting mold is remained on below 450 ℃, can prevent that also the temperature of molten copper in the foundry furnace from reducing, and can stably cast.
The temperature of the said molten copper of said heat insulating member part is preferably set to the fusing point that is higher than said molten copper.
At this moment, the flowability of the molten copper in the heat insulating member part can be kept,, molten copper can be in casting mold, supplied with effectively through the head pressure of the molten copper in the foundry furnace.In addition, casting mold is connected through heat insulating member with foundry furnace, even therefore will be set at the fusing point that is higher than molten copper through the temperature of the inner molten copper of heat insulating member, casting mold can not expose at high temperature yet.Therefore, can suppress casting mold loss in advance and with the reaction of active element.
In said casting process, the head of molten copper is more than the 100mm in the foundry furnace of the upper end of the said casting mold of preferred distance.
At this moment, can in casting mold, supply with molten copper effectively, can stably cast.In addition, the generation of micro-pore can be suppressed, high-quality ingot casting can be made.
The sectional area ratio Sf/Sc of the sectional area Sf of the sectional area Sc of the horizontal direction of casting mold and the horizontal direction of foundry furnace is preferably more than 5.
At this moment, can suppress the liquid level change of molten copper in the foundry furnace when casting mold is pulled out ingot casting less.Therefore, the head pressure of molten copper is stable, can make high-quality ingot casting.
Preferably the leading portion at foundry furnace is provided with continuous melting furnace and keeps stove, will generate the molten copper that generates in the operation at molten copper and supply in the foundry furnace continuously.
At this moment, because molten copper is supplied in the foundry furnace continuously, therefore can make long ingot casting.In addition, can create the raw-material ingot casting of wire rod effectively.
According to a scheme of the present invention, can be effectively and stably make the copper alloy wire that constitutes by the copper alloy that contains Cr, Zr, Si isoreactivity metal.
Description of drawings
Fig. 1 is the brief description figure of an example of the continuous casting apparatus that in the embodiment of the manufacturing approach of the copper alloy wire that contains active element that a scheme of the present invention relates to, uses.
The key diagram of the foundry furnace that Fig. 2 possesses for continuous casting apparatus shown in Figure 1.
Fig. 3 is the amplification key diagram of the coupling part of foundry furnace and casting mold.
The flow chart of the embodiment of the manufacturing approach of the copper alloy wire that contains active element that Fig. 4 relates to for a scheme of the present invention.
Fig. 5 is another the routine figure that is illustrated in the continuous casting apparatus that uses in the embodiment of manufacturing approach of the copper alloy wire that contains active element that a scheme of the present invention relates to.
The specific embodiment
Below, the embodiment of the manufacturing approach of the copper alloy wire that contains active element that a scheme of the present invention is related to reference to accompanying drawing describes.
The copper alloy wire of in the manufacturing approach of this embodiment, making that contains active element contain conduct and constitute after state the Cr, Zr, Si etc. of reactive high active element of the graphite (graphite) of graphite sleeve 31.And, referring to the reactive high element of graphite (graphite), the carbide standard free energy of formation is low, compare the more stable element of material that generates behind the carbide with element simple substance.
In this embodiment; The copper alloy wire that contains active element by contain more than the Cr:0.25 quality % below the 0.45 quality %, more than the Zr:0.05 quality % below the 0.15 quality %, more than the Si:0.01 quality % below the 0.05 quality %, the Cu-Cr-Zr-Si alloy that remainder contains Cu and unavoidable impurities constitutes.
In addition, the line footpath (diameter) of copper alloy wire that contains active element is 30mm in this embodiment for below the above 40mm of 10mm.
Then, the continuous casting apparatus that uses in the manufacturing approach to the copper alloy wire that contains active element of this embodiment describes.Fig. 1 representes to make the continuous casting apparatus 10 of the raw-material ingot casting W that becomes the copper alloy wire that contains active element.
This continuous casting apparatus 10 possesses calciner 11, maintenance stove 13, Conveying Chute 15, foundry furnace 20, casting mold 30 and pulls out the pinch roll 17 of the ingot casting W that is made.
Calciner 11 makes the stove of molten copper for heating fusion copper raw material, possesses the raw material input port 11A that drops into copper raw material and molten copper outlet 11B that the molten copper that will make is discharged.
In addition, be equipped with at the rear section side of this calciner 11 and keep stove 13, calciner 11 with keep stove 13 through being connected chute 12 connections.
Keeping stove 13 is will be by the temporary maintenance of molten copper of calciner 11 supplies and the stove of insulation.Be provided with the interpolation equipment (adding set) (not shown) that adds Cr, Zr, Si isoreactivity element at this maintenance stove 13.In addition, in order to prevent the oxidation of active element, this keeps in the stove 13 is inert gas atmosphere.
Conveying Chute 15 is that the molten copper that adds Cr, Zr, Si isoreactivity element and carry out the composition adjustment is transported to the device in the foundry furnace 20 of back segment.In this embodiment, the inside of Conveying Chute 15 is inert atmosphere.
In this foundry furnace 20, be set at 20000mm along the sectional area Sf in the cross section of the inner horizontal direction of the furnace main body that stores molten copper 23
2≤Sf≤34600mm
2Scope in.Further, in this foundry furnace 20, be equipped with and be used to detect the level transducer (not shown) that stores at the liquid level position of the inner molten copper of furnace main body 23.
As shown in Figure 3, casting mold 30 has the cylindrical shape that possesses the casting hole 36 that on direction of principal axis, connects.Casting mold 30 possesses the graphite sleeve 31 and the cooling jacket 32 that is positioned at the outer circumferential side of this graphite sleeve 31 on the inner peripheral surface that is arranged on casting hole 36.Be useful on the water channel 33 of circulation cooling water in the set inside of cooling jacket 32, with cooling graphite sleeve 31.
This casting mold 30 is connected with the vertical direction lower side of foundry furnace 20, and as shown in Figures 2 and 3, the plug hole 26 that is adapted to foundry furnace 20 is communicated with the casting hole 36 of casting mold 30.The diameter of the casting hole 36 of casting mold 30 is set to below following, the preferred above 40mm of 10mm of 50mm.In this embodiment, the diameter of casting hole 36 is set to 30mm.
The sectional area ratio Sf/Sc of the sectional area Sf of the sectional area Sc of the horizontal direction of casting mold 30 and the horizontal direction of foundry furnace 20 is set to (Sf/Sc >=5) more than 5.This sectional area ratio Sf/Sc is preferably (Sf/Sc >=10) more than 10.
And, between the furnace main body 23 of the graphite sleeve 31 of casting mold 30 and foundry furnace 20, be equipped with heat insulating member 40, in this embodiment, outside the outside, bottom surface that heat insulating member 40 is configured in chamber 21 and the bottom surface of furnace main body 23 between.In addition, this heat insulating member 40 forms the tubular with through hole 46, and the inner peripheral surface of through hole 46 is configured to link to each other with the inner peripheral surface of the plug hole 26 of the casting hole 36 of casting mold 30 and foundry furnace 20.
Heat insulating member 40 is for example by Al
2O
3, SiO
2Constitute on pottery, its thermal conductivity factor is below the 40W/ (mK) at normal temperatures, and thickness is set to below the above 60mm of 5mm.
Then, the manufacturing approach to the copper alloy wire that contains active element of this embodiment of using above-mentioned continuous casting apparatus 10 describes.
As shown in Figure 4, this manufacturing approach that contains the copper alloy wire of active element has: the molten copper that the copper raw material fusion is generated molten copper generates operation S01; The active element that in resulting molten copper, adds active element adds operation S02; Molten copper is carried operation S03 from the molten copper that keeps stove 13 to be transported to foundry furnace 20; The molten copper that is added with active element is remained on the maintenance operation S04 in the foundry furnace 20; With the casting process S05 that makes ingot casting W through the casting mold 30 that is connected with this foundry furnace 20 continuously.
(molten copper generates operation S01)
At first, as copper raw material, it is above and less than the negative electrode of the fine copper (4NCu) of 99.999 quality % to prepare purity and be 99.99 quality %.11A puts in the calciner 11 from the raw material input port with this 4NCu negative electrode, heats fusion and makes molten copper at calciner 11.Then, resulting molten copper supplies to maintenance stove 13 from molten copper outlet 11B through connecting chute 12.
(active element adds operation S02)
In keeping stove 13, in the time of the temporary transient molten copper that keeps being supplied to, the temperature of molten copper is controlled at for example 1100～1400 ℃ through firing equipments such as heater or load coil (heater) (not shown).Then, add Cr, Zr, Si isoreactivity element in the molten copper in keeping stove 13, the composition of adjustment molten copper.At this moment, keeping in the stove 13 is inert gas atmosphere, suppresses the oxidation of Cr, Zr, Si isoreactivity element.
(molten copper is carried operation S03)
The molten copper that will in keeping stove 13, be added with Cr, Zr, Si isoreactivity element supplies to foundry furnace 20 through Conveying Chute 15.As stated, the inside of this Conveying Chute 15 is inert gas atmosphere, prevents the oxidation of molten copper and active element.
(keeping operation S04)
In this foundry furnace 20, keep being added with the molten copper of Cr, Zr, Si isoreactivity element, and the temperature of molten copper is controlled at for example 1100～1400 ℃ through firing equipments such as pharoid (heater) 24.And the liquid level position that stores the molten copper in the furnace main body 23 of this foundry furnace 20 can detect through level transducer, keeps certain mode that the conveying capacity of the molten copper that comes self-sustaining stove 13 is adjusted with liquid level position.
(casting process S05)
Then, the molten copper that stores in foundry furnace 20 is supplied in the casting hole 36 of casting mold 30 through plug hole 26.Supply to molten copper in the casting mold 30 in graphite sleeve 31 partial coagulations, make ingot casting W by the lower end side of casting hole 36 through cooling jacket 32 coolings.And the speed of pulling out of ingot casting W can be controlled through pinch roll 17, in this embodiment, pulls out ingot casting W intermittently.
The speed of pulling out of ingot casting W among the casting process S05 is adjusted to below the above 600mm/min of 200mm/min.In addition, molten copper is adjusted to more than 0.5t/ hour below 10t/ hour to the feed speed of foundry furnace 20.
In addition; In this casting process S05; The head pressure that stores the molten copper in the furnace main body 23 of foundry furnace 20 acts in the casting mold 30; In this embodiment, the liquid level of the molten copper in the furnace main body 23 is controlled so that be more than the 100mm apart from the head of the molten copper in the furnace main body 23 of the upper end 30a of casting mold 30.
Further, in this casting process S05, the temperature of the upper part 31a of the graphite sleeve 31 of casting mold 30 is set to below 450 ℃, and the molten copper temperature of heat insulating member 40 parts is set to the fusing point that is higher than molten copper.
The ingot casting W that so obtains cools off through cooling device (not shown) and is rolled into coiled type.In this embodiment, for example the long ingot casting W more than 950 ℃ is cooled to normal temperature with the above cooling velocity of 50 ℃/min through cooling device, thereby carries out the solution treatment of ingot casting W.
Then, through the ingot casting W that is cooled to normal temperature is implemented heat treatment, cold working etc., make the copper alloy wire that contains active element with predetermined characteristic.
Manufacturing approach according to the copper alloy wire that contains active element of this embodiment with this operation; Owing between the furnace main body 23 of the graphite sleeve 31 of casting mold 30 and foundry furnace 20, be equipped with heat insulating member 40, can prevent that therefore furnace main body 23 interior molten coppers from directly contacting with the graphite sleeve 31 of casting mold 30.Therefore, can suppress the reaction of graphite sleeve 31 and Cr, Zr, Si isoreactivity element.Thus, the bonding of graphite sleeve 31 and ingot casting W can be prevented, the deterioration of graphite sleeve 31 can be prevented.In addition, can suppress the oxidation loss of graphite sleeve 31, can cast long-term and stably.
And; Because casting mold 30 is provided in the vertical direction lower side of foundry furnace 20; In casting process S05; In casting mold 30, make the molten copper cooling when can make the head pressure of the molten copper in the furnace main body 23 that remains on foundry furnace 20 act in the casting mold 30, solidify, also can molten copper be supplied in the casting hole 36 of casting mold 30 effectively, can stably cast even accompany heat insulating member 40.Particularly in this embodiment, in casting process S05, be more than the 100mm apart from the head of the molten copper in the furnace main body 23 of casting mold 30 upper ends, therefore supply molten copper to casting mold 30 in effectively can stably be cast.In addition, the generation of micro-pore can be suppressed, high-quality ingot casting W can be made.
In addition, owing to can the temperature of the upper part 31a of the graphite sleeve 31 of casting mold 30 be remained on below 450 ℃, when can suppress the loss in advance of graphite sleeve 31, can inhibition and the reaction of Cr, Zr, Si isoreactivity element.In addition, owing to be connected with the furnace main body 23 of foundry furnace 20,, can prevent that also the temperature of the molten copper in the foundry furnace 20 from reducing even therefore cooling casting mold 30 is so that the temperature of casting mold 30 is below 450 ℃ through the graphite sleeve 31 of heat insulating member 40 with casting mold 30.
Further; Because the molten copper temperature of heat insulating member 40 parts is set to the fusing point that is higher than molten copper; The flowability that therefore can keep the molten copper in heat insulating member 40 parts is utilized the head pressure of the molten copper in the foundry furnace 20, can molten copper be supplied in the casting mold 30 effectively.In addition; Through heat insulating member 40 casting mold 30 is connected with foundry furnace 20; Therefore even the molten copper temperature with heat insulating member 40 parts is set at the fusing point that is higher than molten copper, casting mold 30 can not expose at high temperature yet, can suppress casting mold 30 loss in advance and with the reaction of active element.
Particularly in this embodiment; The thermal conductivity factor of heat insulating member 40 is below the 40W/ (mK) at normal temperatures; Therefore the thickness of heat insulating member 40 is set to below the above 60mm of 5mm, can suppress the heat transfer between the furnace main body 23 of graphite sleeve 31 and foundry furnace 20 of casting mold 30 effectively.
The sectional area ratio Sf/Sc of the sectional area Sf of the sectional area Sc of the horizontal direction of the casting hole 36 of casting mold 30 and the horizontal direction of foundry furnace 20 is set to and satisfies Sf/Sc >=5, preferred Sf/Sc >=10.Therefore, in casting process S05, can suppress the liquid level change of the molten copper in the furnace main body 23 less, the head pressure of molten copper becomes stable.Thus, can make high-quality ingot casting W.
Further, calciner 11 is set, keeps stove 13 and is connected chute 12 at the leading portion of foundry furnace 20, the molten copper that in molten copper generation operation S01, generates supplies in the foundry furnace 20 continuously.Therefore, can make ingot casting W effectively.
In addition, in this embodiment,, therefore can prevent the oxidation of molten copper and Cr, Zr, Si isoreactivity element, can make high-quality ingot casting W because the inside of calciner 11, maintenance stove 13, Conveying Chute 15, foundry furnace 20 is inert gas atmosphere.
More than embodiment of the present invention is illustrated, yet the present invention is not limited to this, in the scope that does not break away from technological thought of the present invention, can suitably change.
For example, in this embodiment, the situation of resulting ingot casting W quenching being carried out solution treatment is illustrated, yet is not limited thereto.For example, can also solution treatment be then implemented in ingot casting W cooling, perhaps do not implemented solution treatment itself.
In addition, use possesses calciner 11, keeps stove 13 to be illustrated with the continuous casting apparatus that is connected chute 12 10, yet is not limited thereto.For example as shown in Figure 5, can also generate molten copper through batch (-type) calciner 111, through Conveying Chute 15 molten copper is supplied to foundry furnace 20.At this moment, in batch (-type) calciner 111, can carry out the composition adjustment.That is, molten copper be can carry out simultaneously and operation S01 and active element interpolation operation S02 generated.In addition, through many batch (-type) calciners 111 are connected with foundry furnace 20, to foundry furnace 20 alternative supply molten coppers, can make long ingot casting W thus by batch (-type) calciner 111.
In this embodiment; Contain more than the Cr:0.25 quality % below the 0.45 quality % to making, more than the Zr:0.05 quality % below the 0.15 quality %, more than the Si:0.01 quality % below the 0.05 quality %; The situation of copper alloy wire that remainder contains the Cu-Cr-Zr-Si alloy of Cu and unavoidable impurities is illustrated, yet is not limited thereto.For example, copper alloy wire can contain any one or the two or more active elements among Cr, Zr, the Si, can also contain other element.
To the diameter of the casting hole 36 of casting mold 30 is that situation below the 50mm, below the preferred above 40mm of 10mm is illustrated, yet is not limited thereto.
In addition, the speed of pulling out of the ingot casting W in the casting process, molten copper are not done qualification to the feed speed of foundry furnace 20 in this embodiment.
To as shown in the figure being illustrated of situation of plug hole 26 and casting hole 36 only is set respectively, yet be not limited thereto.A plurality of plug holes 26 and casting hole 36 for example can also be set, make polylith ingot casting W simultaneously.
Situation to pulling out ingot casting W intermittently is illustrated, yet is not limited thereto.For example can also pull straight ingot casting W.
In addition, to calciner 11, to keep the inside of stove 13, Conveying Chute 15 and foundry furnace 20 be that the situation of inert gas atmosphere is illustrated, yet be not limited thereto.For example, can also form the oxidation that vacuum (decompression) state prevents molten copper, reactive metal.
The situation that casting mold 30 is possessed graphite sleeve 31 is illustrated, yet is not limited thereto.For example casting mold 30 can also constitute through other material that boron nitride (BN) etc. has a solid lubrication property.
The situation that the inner peripheral surface of the through hole 46 of heat insulating member 40 is configured to link to each other with the inner peripheral surface of the casting hole 36 of casting mold 30 is illustrated, yet is not limited thereto.For example, the inner peripheral surface of through hole 46 can also form to compare to diametric(al) foreign side with the inner peripheral surface of casting hole 36 and retreat.That is, the diameter of through hole 46 can also be greater than the diameter of casting hole 36.
In addition, the component parts of casting mold 30 is not defined in this embodiment.For example, configuration of the structure of cooling jacket 32, water-cooled pipe arrangement (water channel 33) etc. can be carried out suitable design alteration.
Utilizability on the industry
According to a scheme of the present invention, can be effectively and stably make the copper alloy wire that constitutes by the copper alloy that contains reactive metal.Contain the copper alloy wire of reactive metal because intensity height and electric conductivity are good, what for example can be used for used for high-speed railway slips lead etc.A scheme of the present invention goes for the manufacturing process of this copper alloy wire.
Symbol description
W ingot casting, 11 calciners, 13 keep upper end, 40 heat insulating members, the S01 molten copper of stove, 20 foundry furnaces, 30 casting molds, 30a casting mold to generate operation, the S02 active element adds operation, S04 maintenance operation, S05 casting process.
Claims (6)
1. manufacturing approach that contains the copper alloy wire of active element is characterized in that having:
The molten copper that the copper raw material fusion is generated molten copper generates operation;
The active element that in said molten copper, adds active element adds operation;
Said molten copper is remained on the maintenance operation in the foundry furnace; With
Make the casting process of ingot casting continuously through the casting mold that is connected with said foundry furnace,
Said casting mold is connected with the vertical direction lower side of said foundry furnace through heat insulating member,
In said casting process, in said casting mold, exert pressure and said molten copper is supplied in the said casting mold, in said casting mold, make said molten copper cooling, solidify.
2. the manufacturing approach that contains the copper alloy wire of active element according to claim 1 is characterized in that the temperature of said casting mold remains on below 450 ℃.
3. the manufacturing approach that contains the copper alloy wire of active element according to claim 1 and 2 is characterized in that, the temperature of the said molten copper of said heat insulating member part is set at the fusing point that is higher than said molten copper.
4. according to any described manufacturing approach that contains the copper alloy wire of active element in the claim 1～3, it is characterized in that in said casting process, the head of molten copper is more than the 100mm in the foundry furnace of the upper end of the said casting mold of distance.
5. according to any described manufacturing approach that contains the copper alloy wire of active element in the claim 1～4; It is characterized in that the sectional area ratio Sf/Sc of the sectional area Sf of the sectional area Sc of the horizontal direction of said casting mold and the horizontal direction of said foundry furnace is more than 5.
6. according to any described manufacturing approach that contains the copper alloy wire of active element in the claim 1～5; It is characterized in that; Leading portion at said foundry furnace is provided with continuous melting furnace and keeps stove, will generate the said molten copper that generates in the operation at said molten copper and supply to continuously in the said foundry furnace.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010014397 | 2010-01-26 | ||
| JP2010-014397 | 2010-01-26 | ||
| PCT/JP2011/051433 WO2011093310A1 (en) | 2010-01-26 | 2011-01-26 | Process for producing copper alloy wire containing active element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102686337A true CN102686337A (en) | 2012-09-19 |
| CN102686337B CN102686337B (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180005192.XA Active CN102686337B (en) | 2010-01-26 | 2011-01-26 | Process for producing copper alloy wire containing active element |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2529860A4 (en) |
| JP (1) | JP5613907B2 (en) |
| CN (1) | CN102686337B (en) |
| TW (1) | TWI520799B (en) |
| WO (1) | WO2011093310A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143690A (en) * | 2013-04-02 | 2013-06-12 | 安泰科技股份有限公司 | Continuous casting device and method for directly preparing metal rod or wire |
| CN105829554A (en) * | 2013-12-17 | 2016-08-03 | 三菱综合材料株式会社 | Method for producing ca-containing copper alloy |
| CN107138698A (en) * | 2017-05-05 | 2017-09-08 | 哈尔滨工业大学 | A kind of metal or alloy wire rod preparation facilities and the method that metal or alloy wire rod is prepared with the device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2866962B1 (en) | 2012-06-29 | 2017-01-18 | Le Bronze Industriel | Crucible for a machine for continuously casting a bar or a coil of a metal alloy |
| CN104190891B (en) * | 2014-09-10 | 2016-04-06 | 西安工业大学 | Prepare the device of minor diameter metal single crystal wire rod |
| JP6753647B2 (en) * | 2015-01-07 | 2020-09-09 | 大豊工業株式会社 | Copper alloys for plain bearings and plain bearings |
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- 2011-01-26 CN CN201180005192.XA patent/CN102686337B/en active Active
- 2011-01-26 JP JP2011551866A patent/JP5613907B2/en active Active
- 2011-01-26 TW TW100102869A patent/TWI520799B/en not_active IP Right Cessation
- 2011-01-26 WO PCT/JP2011/051433 patent/WO2011093310A1/en active Application Filing
- 2011-01-26 EP EP11737023.9A patent/EP2529860A4/en not_active Withdrawn
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| JPH02307649A (en) * | 1989-05-22 | 1990-12-20 | Shinnitsutou Kinzoku Kk | Method and device for continuously casting copper and copper alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103143690A (en) * | 2013-04-02 | 2013-06-12 | 安泰科技股份有限公司 | Continuous casting device and method for directly preparing metal rod or wire |
| CN105829554A (en) * | 2013-12-17 | 2016-08-03 | 三菱综合材料株式会社 | Method for producing ca-containing copper alloy |
| CN105829554B (en) * | 2013-12-17 | 2018-12-18 | 三菱综合材料株式会社 | The manufacturing method of the copper alloy containing Ca |
| CN107138698A (en) * | 2017-05-05 | 2017-09-08 | 哈尔滨工业大学 | A kind of metal or alloy wire rod preparation facilities and the method that metal or alloy wire rod is prepared with the device |
| CN107138698B (en) * | 2017-05-05 | 2019-04-16 | 哈尔滨工业大学 | A kind of metal or alloy wire rod preparation facilities and the method for preparing metal or alloy wire rod with the device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2011093310A1 (en) | 2013-06-06 |
| JP5613907B2 (en) | 2014-10-29 |
| TW201201925A (en) | 2012-01-16 |
| TWI520799B (en) | 2016-02-11 |
| EP2529860A4 (en) | 2017-02-22 |
| WO2011093310A1 (en) | 2011-08-04 |
| EP2529860A1 (en) | 2012-12-05 |
| CN102686337B (en) | 2015-06-17 |
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