CN110512115A - High strength and high flexibility conductive copper titanium alloy rod bar and preparation method thereof - Google Patents
High strength and high flexibility conductive copper titanium alloy rod bar and preparation method thereof Download PDFInfo
- Publication number
- CN110512115A CN110512115A CN201910929997.1A CN201910929997A CN110512115A CN 110512115 A CN110512115 A CN 110512115A CN 201910929997 A CN201910929997 A CN 201910929997A CN 110512115 A CN110512115 A CN 110512115A
- Authority
- CN
- China
- Prior art keywords
- temperature
- copper
- titanium alloy
- added
- preparation
- 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.)
- Granted
Links
Classifications
-
- 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
- B22D11/051—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having oscillating walls
-
- 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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
-
- 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
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
A kind of high strength and high flexibility conductive copper titanium alloy rod bar and preparation method thereof, high strength and high flexibility conductive copper titanium alloy rod bar is made of following chemical component: Ti:1.0-6.0%, Ni:0.1~3.0%, Al:0.1-2.0%, Si:0.1-1.0%, Cr:0.1~1.0%, Zr:0.1~1.0%, B:0.01~0.2%, Mg:0.01-0.5%, P:0.01-0.1%, surplus is the impurity that Cu and total amount are not more than 0.3%, and above-mentioned percentage is mass percent；Preparation method is produced by the way of hot extrusion, and step includes: ingredient, melting, D.C.casting casting, squeezes, solid solution → cold drawing → solid solution-cold drawing → finished product → aging technique.Inventive formulation science, preparation process advantages of simple, preparation process Environmental Safety, and cost is relatively low, the high strength and high flexibility copper-titanium alloy bar of preparation has excellent intensity, elasticity and conductivity, and intensity reaches the performance requirement of QBe2.0 in 980~1200MPa, finished product conductivity greatly improves simultaneously, can substitute part beryllium-bronze elastic element.
Description
Technical field
The invention belongs to Cu alloy material and fabricating technology fields, are related to a kind of high strength and high flexibility conductive copper titanium alloy bar
Material and preparation method thereof.
Background technique
Elastic alloy belongs to indispensable material in precision instrumentation and precision machinery.Electronic information, automobile and logical
The fast development of news industry and army's industry, promotes to be mainly used for connector, spring connector, switch, contact chip etc.
Elastic conduction alloy dosage is increasing.
Now widely used high-strength high-elasticity conductive copper alloy is mainly Cu-Be serial (beryllium-bronze), and beryllium-bronze is most
Pipe have very high intensity, elasticity, wearability and fatigue durability and it is good it is conductive, thermally conductive, without magnetic and impact no-spark etc.
Performance, but the element problem of beryllium-bronze manufacture is also outstanding day by day, as stress relaxation-resistant ability is poor under high temperature, high-temperature electric conduction
The degree of deformation of element is big etc. after stability is low and timeliness.Furthermore, it is most important that there are toxic dusts in production for beryllium-bronze
Problem, and its toxicity of compound is larger, sucking human body can cause the diseases such as cancer.With constantly mentioning for people's environmental consciousness
The production cost of height, beryllium-bronze is being continuously increased.
Cu-Ti alloy has a high-intensitive, consistency and elasticity at present, excellent wearability, fatigue durability, corrosion resistance, can
Weldering property and machining property, these mechanical properties can compare favourably with beryllium-bronze, and compared with beryllium-bronze Cu-Ti alloy height
Warm nature can be more excellent, and abundant raw materials, cost is relatively low, and therefore, Cu-Ti alloy is that become substitution beryllium-bronze most potential
One of material.For the preparation of copper-titanium alloy in existing patent, vacuum melting or PM technique are mainly used, and main
Based on Cu-Ti bianry alloy, conductivity is lower, and application range is restricted, such as Patent No. CN201910262285.9
Chinese patent " a kind of superhigh intensity copper-titanium alloy and preparation method thereof ", alloy includes component and its mass percent are as follows: Cu powder:
55~58%, Ti powder: 42~45%.Preparation method are as follows: by the composition proportion of superhigh intensity copper-titanium alloy, Cu powder and Ti powder are mixed equal
It is even, it is pressed after mixture is made, pressure is 35~100MPa, 10~30min of pressure maintaining, and alloy green compact are made；It will close
Golden green compact are sintered under inert gas atmosphere, with the heating rate of 5~10 DEG C/min, from room temperature to sintering temperature 1085~
1150 DEG C, cooling is come out of the stove after being sintered 10~60min, and superhigh intensity copper-titanium alloy is made.The patent uses PM technique system
Copper titanium bianry alloy is obtained, finished product hardness is in 270~320HV.There are also the Chinese patents " one of Patent No. CN201811313033.6
Kind Novel high-elasticity copper-titanium alloy and its tissue modulation method ", 2.0~2.4%Ti bianry alloy is made using vacuum melting, is added
Add trace alloying element Cr or Co, product intensity is in 1100~1200MPa.Although above-mentioned two patents are in finished product hardness or intensity
On increase, but the conductivity of finished product there is no increase.
Therefore need to prepare needs of the new high strength and high flexibility conduction copper-titanium alloy of one kind to meet market.
Summary of the invention
First technical problem to be solved by this invention is to provide one kind and has excellent performance, can substitute part beryllium-bronze elasticity
The high strength and high flexibility conductive copper titanium alloy rod bar of element.
Second technical problem to be solved by this invention is to provide a kind of system of high strength and high flexibility conductive copper titanium alloy rod bar
Preparation Method has the characteristics that simple preparation process, preparation process Environmental Safety and cost is relatively low, the high strength and high flexibility copper titanium of preparation
Alloy bar material has excellent intensity, elasticity and conductivity.
The present invention solves technical solution used by above-mentioned first technical problem are as follows: a kind of high strength and high flexibility conductive copper titanium conjunction
Golden bar, it is characterised in that: the high strength and high flexibility conductive copper titanium alloy rod bar is made of following chemical component: Ti:1.0-
6.0%, Ni:0.1~3.0%, Al:0.1-2.0%, Si:0.1-1.0%, Cr:0.1~1.0%, Zr:0.1~1.0%, B:
0.01~0.2%, Mg:0.01-0.5%, P:0.01-0.1%, surplus is the impurity that Cu and total amount are not more than 0.3%, above-mentioned
Percentage is mass percent.
It is preferred that the high strength and high flexibility conductive copper titanium alloy rod bar is made of following chemical component: Ti:2.0-4.0%,
Ni:0.5~3.0%, Al:0.1-1.5%, Si:0.3-0.8%, Cr:0.1~1.0%, Zr:0.3~0.6%, B:0.01~
0.1%, Mg:0.05-0.1%, P:0.01-0.05%, surplus are the impurity that Cu and total amount are not more than 0.3%, above-mentioned percentage
Than for mass percent.
Further, the Ti is added in a manner of copper-titanium alloy, and the Ti content in copper-titanium alloy is 50%~70%, is added
Amount is the 3.0%~8% of raw material total amount；P is added with P-Cu alloy, and P content is 10~15% in P-Cu alloy, and additional amount is original
Expect that the 0.1-0.5% of total amount, B are added with Al-B intermediate alloy, the content of B is 3%~8% in Al-B intermediate alloy, additional amount
For the 0.03-0.3% of raw material total amount.
The present invention solves technical solution used by above-mentioned second technical problem are as follows: a kind of above-mentioned high strength and high flexibility conductive copper
The preparation method of titanium alloy rod bar, it is characterised in that the following steps are included:
1) ingredient: electrolysis is weighed by the chemical component and mass percent of the titanium alloy bar of conductive copper containing high strength and high flexibility first
Copper Cu, metallic nickel Ni, metal Cr, metal Zr, metal Al, metal Si, magnesium metal, Cu-Ti intermediate alloy, Cu-P intermediate alloy,
Al-B intermediate alloy；
2) melting: cathode copper Cu and metallic nickel being put into heat in melting furnace and melted, charcoal covering is added in fusion process,
30~60min is kept the temperature after copper Cu and metallic nickel Ni fusing to be electrolysed, is added after being warming up to 1350~1400 DEG C and is coated with copper tube
Metal Cr, keep the temperature 15~30min, metal Si and a certain amount of ice crystal be then added, accelerate burn-off rate, measure melt temperature
Degree, temperature are added metal Al and Al-B alloy at 1200~1300 DEG C, keep the temperature 10~20min, then begin to fishing slag, add
After entering coverture, inflation is warming up to 1250~1350 DEG C, and Cu-Ti intermediate alloy is added, and keeps the temperature 5~45min；Then be added with
The metal Zr of copper tube package, keeps the temperature 4~6min；Temperature is measured between 1250~1350 DEG C, addition magnesium metal, heat preservation 5~
10min adds Cu-P intermediate alloy, keeps the temperature 5~10min.
3) D.C.casting is cast: control melt temperature starts control copper liquid and flows out to crystallizer between 1350~1450 DEG C
When 2/3rds or so, start dragger, cast work is started with 40~60mm/min, opens vibration, the frequency 20 of vibrator
It~50 times/min, 2~5mm of amplitude, then steps up casting speed and increases cooling water intensity, until enter the speed stabilizing stage,
The casting speed in speed stabilizing stage is controlled in 80-120mm/min, and hydraulic pressure control is between 70~170Kpa；The knot that whole process is answered
Brilliant device liquid level is maintained away from crystallizer 10-20mm suitable for reading, obtains D.C.casting round billet；
4) D.C.casting round billet is squeezed after keeping the temperature 60~120min through being heated to 850~950 DEG C in band controlled atmosphere furnace
Pressure obtains squeezing bar stock, squeezes bar stock through peeling and obtains the bar stock of any surface finish, pore-free, slag inclusion, bar stock is through solid solution → cold drawing
→ solid solution-cold drawing → finished product → aging technique obtains final products.
Preferably, the coverture of the step 2) is the glass and borax that mass ratio is 1:1, coverture needs pre- before being added
It first toasts, previously baked temperature is 340~360 DEG C, and the previously baked time is 0.5~1.5h.
Further, the D.C.casting furnace zone protective gas of the D.C.casting casting of the step 3).
Further, the diameter of the extruding bar stock of the step 4) is 28-33mm.
Further, the temperature of the solid solution of the step 4) is 860~880 DEG C, and the time is 1.5~2.5h；Cold-drawing process
Passage cold working amount is not more than 19~21%, and total deformation is not more than 75~85%；Aging technique are as follows: the annealing with Ar gas shielded
It is air-cooled after heat preservation 1h~7h at 370~450 DEG C of furnace.
Finally, the temperature of the solid solution of the step 4) is 870 DEG C, time 2h；The passage cold working amount of cold-drawing process is not
Greater than 20%, total deformation is not more than 80%.
Compared with the prior art, the advantages of the present invention are as follows: Ti element is added in a manner of intermediate alloy, it is polynary with copper titanium
Based on alloy Cu-Ti-Ni, it using coverture or protective gas melting, can be effectively controlled the scaling loss of Ti, Ti content made to tend to be steady
Fixed, the fluctuation of Ti is 0.1~0.3%, while fusion process has no toxic side effect, and production environment meets environmental requirement.The present invention matches
Fang Kexue, preparation process advantages of simple, preparation process Environmental Safety, and cost is relatively low, the high strength and high flexibility copper-titanium alloy stick of preparation
Material has excellent intensity, elasticity and conductivity, and wherein intensity reaches the performance requirement of QBe2.0 in 980~1200MPa,
Finished product conductivity greatly improves, and can substitute part beryllium-bronze elastic element.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
Embodiment 1
A kind of high strength and high flexibility conductive copper titanium alloy bar, it be by following substance according to chemical composition with the proportion of mass percent
Composition, Ti:2.0%, Ni:2.5%, Al:1.0%, Si:0.4%, Cr:0.3%, Zr:0.1%, B:0.01%, Mg:0.1%,
P:0.01%, surplus are the impurity that Cu and total amount are not more than 0.3%.
Wherein Ti is added in a manner of copper-titanium alloy, and copper-titanium alloy is commercially available copper-titanium alloy, and Ti content is 50%~70%,
Additional amount is the 4% of raw material total amount；P uses commercially available P-Cu alloy, and P content is 10~15% in P-Cu alloy, and additional amount is original
Expect that 0.1%, B of total amount uses commercially available Al-B intermediate alloy, the content of B is 3%~8% in Al-B intermediate alloy, and additional amount is
The 0.3% of raw material total amount.
Specific preparation method the following steps are included:
(1) ingredient: high strength and high flexibility conductive copper titanium alloy bar is produced by the way of hot extrusion, is led first by containing high strength and high flexibility
The chemical component and mass percent of electrolytic copper titanium alloy bar weigh cathode copper Cu, metallic nickel Ni, metal Cr, metal Zr, metal
Al, metal Si, magnesium metal, Cu-Ti intermediate alloy, Cu-P intermediate alloy and Al-B intermediate alloy；
Wherein D.C.casting furnace zone protective gas, and melting furnace must be cleaned, and prevent impurity from polluting；
(2) melting: cathode copper Cu and metallic nickel are put into heat in melting furnace and melted, charcoal is added in fusion process and covers
Lid keeps the temperature 30~60min after copper Cu and metallic nickel Ni fusing to be electrolysed, is added after being warming up to 1350~1400 DEG C with copper tube packet
The metal Cr covered keeps the temperature 15~30min, metal Si and a certain amount of ice crystal is then added, accelerate burn-off rate, measures melt
Temperature, temperature are added metal Al and Al-B alloy at 1200~1300 DEG C, keep the temperature 10~20min, then begin to fishing slag,
After coverture is added, inflation is warming up to 1250~1350 DEG C, and Cu-Ti intermediate alloy is added, and keeps the temperature 5~45min；Then it is added
With the metal Zr that copper tube coats, 5min is kept the temperature；Temperature is measured between 1250~1350 DEG C, addition magnesium metal, heat preservation 5~
10min adds Cu-P intermediate alloy, keeps the temperature 5~10min；
Wherein coverture is the glass and borax that mass ratio is 1:1, and coverture needs previously baked, previously baked temperature before being added
Degree is 340~360 DEG C, and the previously baked time is 0.5~1.5h；
(3) D.C.casting is cast: control melt temperature starts control copper liquid and flows out to crystallizer between 1350~1450 DEG C
When 2/3rds or so, start dragger, cast work is started with 40~60mm/min, opens vibration, the frequency 20 of vibrator
~50 times/min, 2~5mm of amplitude.Then it steps up casting speed and increases cooling water intensity, until enter the speed stabilizing stage,
The casting speed in speed stabilizing stage should be controlled in 80-120mm/min, and between 70~170Kpa, whole process should be infused hydraulic pressure control
Meaning copper liquid flow, as far as possible level stability in holding crystallizer, liquid level are maintained apart from crystallizer about 10-20mm or so suitable for reading
It is advisable, obtainsD.C.casting round billet；
(4) D.C.casting round billet squeezes after being heated to 850~950 DEG C of 60~120min of heat preservation in band controlled atmosphere furnace, obtains
To squeeze bar stock, squeeze bar stock diameter be 28-33mm, extruded stock through peeling obtain any surface finish, pore-free, slag inclusion stick
Base, bar stock obtain final products through solid solution → cold drawing → solid solution-cold drawing → finished product → aging technique；
The temperature being wherein dissolved is 870 DEG C, time 2h；The passage cold working amount of cold-drawing process is not more than 20%, total change
Shape amount is not more than 80%；Aging technique are as follows: air-cooled after heat preservation 1h~7h at 370~450 DEG C of annealing furnace with Ar gas shielded；
(5) timeliness finished product is subjected to Erichsen test and conductivity test is tested, obtained tensile strength and elongation percentage, lead
Electric rate, elasticity modulus.
Embodiment 2
A kind of high strength and high flexibility conductive copper titanium alloy bar, it be by following substance according to chemical composition with the proportion of mass percent
Composition: Ti:3.0%, Ni:1.5%, Al:0.6%, Si:0.6%, Cr:0.3%, Zr:0.1%, B:0.05%, Mg:0.1%,
P:0.01%, surplus are the impurity that Cu and total amount are not more than 0.3%.
Wherein Ti is added in a manner of copper-titanium alloy, and Ti is 50%~70% in copper-titanium alloy, and additional amount is raw material total amount
6%；P uses commercially available P-Cu alloy, and P content is 10~15% in P-Cu alloy, and additional amount is that 0.1%, B of raw material total amount is adopted
With commercially available Al-B intermediate alloy, the content of B is 3%~8% in Al-B intermediate alloy, and additional amount is the 0.15% of raw material total amount.
The preparation method of the high strength and high flexibility conductive copper titanium alloy bar of the present embodiment, comprising the following steps:
(1) ingredient: high strength and high flexibility conductive copper titanium alloy bar is produced by the way of hot extrusion, is led first by containing high strength and high flexibility
The chemical component and mass percent of electrolytic copper titanium alloy bar weigh cathode copper Cu, metallic nickel Ni, metal Cr, metal Zr, metal
Al, metal Si, magnesium metal, Cu-Ti intermediate alloy, Cu-P intermediate alloy；Al-B intermediate alloy.
Wherein D.C.casting furnace zone protective gas, and melting furnace must be cleaned, and prevent impurity from polluting；
(2) melting: cathode copper Cu and metallic nickel are put into heat in melting furnace and melted, charcoal is added in fusion process and covers
Lid keeps the temperature 30~60min after copper Cu and metallic nickel Ni fusing to be electrolysed, is added after being warming up to 1350~1400 DEG C with copper tube packet
The metal Cr covered keeps the temperature 15~30min, metal Si and a certain amount of ice crystal is then added, accelerate burn-off rate, measures melt
Temperature, temperature are added metal Al and Al-B alloy at 1200~1300 DEG C, keep the temperature 10~20min, then begin to fishing slag,
After coverture is added, inflation is warming up to 1250~1350 DEG C, and Cu-Ti intermediate alloy is added, and keeps the temperature 5~45min；Then it is added
With the metal Zr that copper tube coats, 5min is kept the temperature；Temperature is measured between 1250~1350 DEG C, addition magnesium metal, heat preservation 5~
10min adds Cu-P intermediate alloy, keeps the temperature 5~10min；
Wherein coverture is the glass and borax that mass ratio is 1:1, and coverture needs previously baked, previously baked temperature before being added
Degree is 340~360 DEG C, and the previously baked time is 0.5~1.5h；
(3) D.C.casting is cast: control melt temperature starts control copper liquid and flows out to crystallizer between 1350~1450 DEG C
When 2/3rds or so, start dragger, cast work is started with 40~60mm/min, opens vibration, the frequency 20 of vibrator
~50 times/min, 2~5mm of amplitude.Then it steps up casting speed and increases cooling water intensity, until enter the speed stabilizing stage,
The casting speed in speed stabilizing stage should be controlled in 80-120mm/min, and hydraulic pressure control is between 70~170Kpa；Whole process should be infused
Meaning copper liquid flow, as far as possible level stability in holding crystallizer, liquid level are maintained apart from crystallizer about 10-20mm or so suitable for reading
It is advisable, obtainsD.C.casting round billet；
(4) D.C.casting round billet squeezes after being heated to 850~950 DEG C of 60~120min of heat preservation in band controlled atmosphere furnace, obtains
To bar stock is squeezed, squeeze bar stock and through peeling obtain the bar stock of any surface finish, pore-free, slag inclusion, Gu bar stock through solid solution → cold drawing →
Molten-cold drawing → finished product → aging technique obtains final products；
The temperature being wherein dissolved is 870 DEG C, time 2h；The passage cold working amount of cold-drawing process is not more than 20%, total change
Shape amount is not more than 80%；Aging technique are as follows: air-cooled after heat preservation 1h~7h at 370~450 DEG C of annealing furnace with Ar gas shielded；
(5) timeliness finished product is subjected to Erichsen test and conductivity test is tested, obtained tensile strength and elongation percentage, lead
Electric rate, elasticity modulus.
Embodiment 3
A kind of high strength and high flexibility conductive copper titanium alloy bar, it be by following substance according to chemical composition with the proportion of mass percent
Composition, Ti:3.3%, Ni:0.7%, Al:1.5%, Si:0.5%, Cr:0.2%, Zr:0.4%, B:0.05%, Mg:0.1%,
P:0.05%, surplus are the impurity that Cu and total amount are not more than 0.3%.
Wherein Ti is added in a manner of copper-titanium alloy, and Ti is 50%~70% in copper-titanium alloy, and additional amount is raw material total amount
7%；P uses commercially available P-Cu alloy, and P content is 10~15% in the P-Cu alloy, and additional amount is raw material total amount
0.1%, B use commercially available Al-B intermediate alloy, and the content of B is 3%~8% in the Al-B intermediate alloy, and additional amount is raw material
The 0.17% of total amount.
The preparation method of the high strength and high flexibility conductive copper titanium alloy bar of the present embodiment, comprising the following steps:
(1) ingredient: high strength and high flexibility conductive copper titanium alloy bar is produced by the way of hot extrusion, is led first by containing high strength and high flexibility
The chemical component and mass percent of electrolytic copper titanium alloy bar weigh cathode copper Cu, metallic nickel Ni, metal Cr, metal Zr, metal
Al, metal Si, magnesium metal, Cu-Ti intermediate alloy, Cu-P intermediate alloy；Al-B intermediate alloy.
Wherein D.C.casting furnace zone protective gas, and melting furnace must be cleaned, and prevent impurity from polluting；
(2) melting: cathode copper Cu and metallic nickel are put into heat in melting furnace and melted, charcoal is added in fusion process and covers
Lid keeps the temperature 30~60min after copper Cu and metallic nickel Ni fusing to be electrolysed, is added after being warming up to 1350~1400 DEG C with copper tube packet
The metal Cr covered keeps the temperature 15~30min, metal Si and a certain amount of ice crystal is then added, accelerate burn-off rate, measures melt
Temperature, temperature are added metal Al and Al-B alloy at 1200~1300 DEG C, keep the temperature 10~20min, then begin to fishing slag,
After coverture is added, inflation is warming up to 1250~1350 DEG C, and Cu-Ti intermediate alloy is added, and keeps the temperature 5~45min；Then it is added
With the metal Zr that copper tube coats, 5min is kept the temperature；Temperature is measured between 1250~1350 DEG C, addition magnesium metal, heat preservation 5~
10min adds Cu-P intermediate alloy, keeps the temperature 5~10min；
Wherein coverture is the glass and borax that mass ratio is 1:1, and coverture needs previously baked, previously baked temperature before being added
Degree is 340~360 DEG C, and the previously baked time is 0.5~1.5h；
(3) D.C.casting is cast: control melt temperature starts control copper liquid and flows out to crystallizer between 1350~1450 DEG C
When 2/3rds or so, start dragger, cast work is started with 40~60mm/min, opens vibration, the frequency 20 of vibrator
~50 times/min, 2~5mm of amplitude.Then it steps up casting speed and increases cooling water intensity, until enter the speed stabilizing stage,
The casting speed in speed stabilizing stage should be controlled in 80-120mm/min, and hydraulic pressure control is between 70~170Kpa；Whole process should be infused
Meaning copper liquid flow, as far as possible level stability in holding crystallizer, liquid level are maintained apart from crystallizer about 10-20mm or so suitable for reading
It is advisable, obtainsD.C.casting round billet；
(4) D.C.casting round billet squeezes after being heated to 850~950 DEG C of 60~120min of heat preservation in band controlled atmosphere furnace, obtains
To bar stock is squeezed, squeeze bar stock and through peeling obtain the bar stock of any surface finish, pore-free, slag inclusion, Gu bar stock through solid solution → cold drawing →
Molten-cold drawing → finished product → aging technique obtains final products；
The temperature being wherein dissolved is 870 DEG C, time 2h；The passage cold working amount of cold-drawing process is not more than 20%, total change
Shape amount is not more than 80%；Aging technique are as follows: air-cooled after heat preservation 1h~7h at 370~450 DEG C of annealing furnace with Ar gas shielded；
(5) timeliness finished product is subjected to Erichsen test and conductivity test is tested, obtained tensile strength and elongation percentage, lead
Electric rate, elasticity modulus.
Table 1 is the performance test results of the copper-titanium alloy gold bar of above three embodiments preparation:
1 particular product performance parameters of table
As can be seen from Table 1, high strength and high flexibility copper-titanium alloy bar prepared by the present invention has excellent intensity, elasticity and leads
Electric rate, wherein intensity reaches the performance requirement of QBe2.0 in 980~1200MPa, while finished product conductivity greatly improves, and can replace
For part beryllium-bronze elastic element.
Claims (9)
1. a kind of high strength and high flexibility conductive copper titanium alloy rod bar, it is characterised in that: the high strength and high flexibility conductive copper titanium alloy rod bar be by
Following chemical component composition: Ti:1.0-6.0%, Ni:0.1~3.0%, Al:0.1-2.0%, Si:0.1-1.0%, Cr:0.1
~1.0%, Zr:0.1~1.0%, B:0.01~0.2%, Mg:0.01-0.5%, P:0.01-0.1%, surplus is for Cu and always
Amount is not more than 0.3% impurity, and above-mentioned percentage is mass percent.
2. high strength and high flexibility conductive copper titanium alloy rod bar according to claim 1, it is characterised in that: the chemical component group
At: Ti:2.0-4.0%, Ni:0.5~3.0%, Al:0.1-1.5%, Si:0.3-0.8%, Cr:0.1~1.0%, Zr:0.3
~0.6%, B:0.01~0.1%, Mg:0.05-0.1%, P:0.01-0.05%, surplus is Cu and total amount is not more than 0.3%
Impurity, above-mentioned percentage be mass percent.
3. high strength and high flexibility conductive copper titanium alloy rod bar according to claim 2, it is characterised in that: the Ti is with copper-titanium alloy
Mode be added, the Ti content in copper-titanium alloy be 50%~70%, additional amount be raw material total amount 3.0%~8%；P is with P-
Cu alloy is added, and P content is 10~15% in P-Cu alloy, and additional amount is the 0.1-0.5% of raw material total amount, B with Al-B among
Alloy is added, and the content of B is 3%~8% in Al-B intermediate alloy, and additional amount is the 0.03-0.3% of raw material total amount.
4. the preparation method of high strength and high flexibility conductive copper titanium alloy rod bar described in a kind of claims 1 or 2 or 3, it is characterised in that
The following steps are included:
1) ingredient: cathode copper is weighed by the chemical component and mass percent of the titanium alloy bar of conductive copper containing high strength and high flexibility first
Cu, metallic nickel Ni, metal Cr, metal Zr, metal Al, metal Si, magnesium metal, Cu-Ti intermediate alloy, Cu-P intermediate alloy, Al-
B intermediate alloy；
2) melting: cathode copper Cu and metallic nickel are put into heat in melting furnace and melted, charcoal covering is added in fusion process, to electricity
30~60min is kept the temperature after solving copper Cu and metallic nickel Ni fusing, the gold coated with copper tube is added after being warming up to 1350~1400 DEG C
Belong to Cr, keep the temperature 15~30min, metal Si and a certain amount of ice crystal is then added, accelerate burn-off rate, measure melt temperature,
Metal Al and Al-B alloy is added at 1200~1300 DEG C in temperature, keeps the temperature 10~20min, then begins to fishing slag, and addition is covered
After lid agent, inflation is warming up to 1250~1350 DEG C, and Cu-Ti intermediate alloy is added, and keeps the temperature 5~45min；Then it is added with red copper
The metal Zr of pipe cladding, keeps the temperature 4~6min；Temperature is measured between 1250~1350 DEG C, addition magnesium metal, heat preservation 5~
10min adds Cu-P intermediate alloy, keeps the temperature 5~10min.
3) D.C.casting is cast: control melt temperature starts to control copper liquid and flows out to crystallizer three and divide between 1350~1450 DEG C
Two or so when, start dragger, with 40~60mm/min start cast work, open vibration, the frequency 20~50 of vibrator
Then secondary/min, 2~5mm of amplitude step up casting speed and increase cooling water intensity, until entering speed stabilizing stage, speed stabilizing
The casting speed in stage is controlled in 80-120mm/min, and hydraulic pressure control is between 70~170Kpa；The crystallizer that whole process is answered
Liquid level is maintained away from crystallizer 10-20mm suitable for reading, obtains D.C.casting round billet；
4) D.C.casting round billet is squeezed after keeping the temperature 60~120min, is obtained through being heated to 850~950 DEG C in band controlled atmosphere furnace
To bar stock is squeezed, squeeze bar stock and through peeling obtain the bar stock of any surface finish, pore-free, slag inclusion, Gu bar stock through solid solution → cold drawing →
Molten-cold drawing → finished product → aging technique obtains final products.
5. preparation method according to claim 1, it is characterised in that: the coverture of the step 2) is that mass ratio is 1:1
Glass and borax, coverture needs previously baked before being added, previously baked temperature is 340~360 DEG C, and the previously baked time is
0.5~1.5h.
6. preparation method according to claim 1, it is characterised in that: the D.C.casting furnace of the D.C.casting casting of the step 3)
Band protective gas.
7. preparation method according to claim 1, it is characterised in that: the diameter of the extruding bar stock of the step 4) is 28-
33mm。
8. preparation method according to claim 1, it is characterised in that: the temperature of the solid solution of the step 4) is 860~880
DEG C, the time is 1.5~2.5h；The passage cold working amount of cold-drawing process is not more than 19~21%, total deformation no more than 75~
85%；Aging technique are as follows: air-cooled after heat preservation 1h~7h at 370~450 DEG C of annealing furnace with Ar gas shielded.
9. preparation method according to claim 8, it is characterised in that: the temperature of the solid solution of the step 4) is 870 DEG C, when
Between be 2h；The passage cold working amount of cold-drawing process is not more than 20%, and total deformation is not more than 80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910929997.1A CN110512115B (en) | 2019-09-29 | 2019-09-29 | High-strength high-elasticity conductive copper-titanium alloy bar and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910929997.1A CN110512115B (en) | 2019-09-29 | 2019-09-29 | High-strength high-elasticity conductive copper-titanium alloy bar and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110512115A true CN110512115A (en) | 2019-11-29 |
| CN110512115B CN110512115B (en) | 2021-08-17 |
Family
ID=68632860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910929997.1A Active CN110512115B (en) | 2019-09-29 | 2019-09-29 | High-strength high-elasticity conductive copper-titanium alloy bar and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110512115B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111471880A (en) * | 2020-04-28 | 2020-07-31 | 太原晋西春雷铜业有限公司 | Ingot casting preparation method for reducing Cu-Ni-Si-Mg alloy casting slag inclusion |
| CN111992684A (en) * | 2020-07-07 | 2020-11-27 | 宁波博威新材料有限公司 | Preparation method of titanium bronze alloy cast ingot |
| CN112458332A (en) * | 2020-10-13 | 2021-03-09 | 宁波博威合金材料股份有限公司 | Titanium bronze alloy bar and preparation method and application thereof |
| CN112609104A (en) * | 2020-10-20 | 2021-04-06 | 陕西斯瑞新材料股份有限公司 | Novel semi-continuous metal casting process of heat-resistant copper alloy and application thereof |
| CN112708799A (en) * | 2020-12-21 | 2021-04-27 | 江西理工大学 | High-strength conductive softening-resistant copper alloy and preparation method thereof |
| CN112877553A (en) * | 2021-01-12 | 2021-06-01 | 宁波金田铜业(集团)股份有限公司 | Preparation method of copper-titanium alloy bar wire |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1582428A (en) * | 1977-12-12 | 1981-01-07 | Bicc Ltd | Copper alloy |
| JPS6077947A (en) * | 1983-10-04 | 1985-05-02 | Masamichi Miki | Copper-base functional alloy |
| WO2004070070A1 (en) * | 2003-02-05 | 2004-08-19 | Sumitomo Metal Industries, Ltd. | Cu ALLOY AND METHOD FOR PRODUCTION THEREOF |
| CN1688732A (en) * | 2002-09-13 | 2005-10-26 | 奥林公司 | Age-hardening copper-base alloy and processing |
| JP2005317463A (en) * | 2004-04-30 | 2005-11-10 | Nikko Metal Manufacturing Co Ltd | Material and terminal for high frequency signal transmission |
| CN101423906A (en) * | 2008-11-07 | 2009-05-06 | 中铝洛阳铜业有限公司 | High elasticity and high conductivity beryllium-free copper alloy material and processing technique |
| CN101748309A (en) * | 2008-11-28 | 2010-06-23 | 同和金属技术有限公司 | Copper alloy plate and method for producing same |
| CN104073678A (en) * | 2013-03-25 | 2014-10-01 | 同和金属技术有限公司 | Cu-Ti based copper alloy sheet material and method for producing the same, and electric current carrying component |
| JP2015190044A (en) * | 2014-03-28 | 2015-11-02 | Ｄｏｗａメタルテック株式会社 | Cu-Ti-BASED COPPER ALLOY SHEET MATERIAL, MANUFACTURING METHOD THEREFOR, AND ELECTRIFICATION COMPONENT |
| CN105568047A (en) * | 2015-12-29 | 2016-05-11 | 宁波博威合金材料股份有限公司 | High-strength, high-elasticity and high-conductivity copper alloy |
| CN107267796A (en) * | 2016-03-31 | 2017-10-20 | Ｊｘ金属株式会社 | Titanium copper paper tinsel and its manufacture method |
| CN108506331A (en) * | 2017-02-25 | 2018-09-07 | 威兰德-沃克公开股份有限公司 | The sliding members that copper alloy is constituted |
| CN108950292A (en) * | 2018-07-24 | 2018-12-07 | 西安理工大学 | A kind of electrically conductive elastic Cu-Ti-Ni-Al alloy and preparation method thereof |
| JP6485859B2 (en) * | 2015-02-27 | 2019-03-20 | 国立大学法人東北大学 | Titanium copper alloy material with surface coating and method for producing the same |
-
2019
- 2019-09-29 CN CN201910929997.1A patent/CN110512115B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1582428A (en) * | 1977-12-12 | 1981-01-07 | Bicc Ltd | Copper alloy |
| JPS6077947A (en) * | 1983-10-04 | 1985-05-02 | Masamichi Miki | Copper-base functional alloy |
| CN1688732A (en) * | 2002-09-13 | 2005-10-26 | 奥林公司 | Age-hardening copper-base alloy and processing |
| WO2004070070A1 (en) * | 2003-02-05 | 2004-08-19 | Sumitomo Metal Industries, Ltd. | Cu ALLOY AND METHOD FOR PRODUCTION THEREOF |
| JP2005317463A (en) * | 2004-04-30 | 2005-11-10 | Nikko Metal Manufacturing Co Ltd | Material and terminal for high frequency signal transmission |
| CN101423906A (en) * | 2008-11-07 | 2009-05-06 | 中铝洛阳铜业有限公司 | High elasticity and high conductivity beryllium-free copper alloy material and processing technique |
| CN101748309A (en) * | 2008-11-28 | 2010-06-23 | 同和金属技术有限公司 | Copper alloy plate and method for producing same |
| CN104073678A (en) * | 2013-03-25 | 2014-10-01 | 同和金属技术有限公司 | Cu-Ti based copper alloy sheet material and method for producing the same, and electric current carrying component |
| JP2015190044A (en) * | 2014-03-28 | 2015-11-02 | Ｄｏｗａメタルテック株式会社 | Cu-Ti-BASED COPPER ALLOY SHEET MATERIAL, MANUFACTURING METHOD THEREFOR, AND ELECTRIFICATION COMPONENT |
| JP6368518B2 (en) * | 2014-03-28 | 2018-08-01 | Ｄｏｗａメタルテック株式会社 | Cu-Ti copper alloy sheet, method for producing the same, and energized component |
| JP6485859B2 (en) * | 2015-02-27 | 2019-03-20 | 国立大学法人東北大学 | Titanium copper alloy material with surface coating and method for producing the same |
| CN105568047A (en) * | 2015-12-29 | 2016-05-11 | 宁波博威合金材料股份有限公司 | High-strength, high-elasticity and high-conductivity copper alloy |
| CN107267796A (en) * | 2016-03-31 | 2017-10-20 | Ｊｘ金属株式会社 | Titanium copper paper tinsel and its manufacture method |
| CN108506331A (en) * | 2017-02-25 | 2018-09-07 | 威兰德-沃克公开股份有限公司 | The sliding members that copper alloy is constituted |
| CN108950292A (en) * | 2018-07-24 | 2018-12-07 | 西安理工大学 | A kind of electrically conductive elastic Cu-Ti-Ni-Al alloy and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111471880A (en) * | 2020-04-28 | 2020-07-31 | 太原晋西春雷铜业有限公司 | Ingot casting preparation method for reducing Cu-Ni-Si-Mg alloy casting slag inclusion |
| CN111992684A (en) * | 2020-07-07 | 2020-11-27 | 宁波博威新材料有限公司 | Preparation method of titanium bronze alloy cast ingot |
| CN112458332A (en) * | 2020-10-13 | 2021-03-09 | 宁波博威合金材料股份有限公司 | Titanium bronze alloy bar and preparation method and application thereof |
| CN112458332B (en) * | 2020-10-13 | 2022-01-11 | 宁波博威合金材料股份有限公司 | Titanium bronze alloy bar and preparation method and application thereof |
| CN112609104A (en) * | 2020-10-20 | 2021-04-06 | 陕西斯瑞新材料股份有限公司 | Novel semi-continuous metal casting process of heat-resistant copper alloy and application thereof |
| CN112609104B (en) * | 2020-10-20 | 2021-09-17 | 陕西斯瑞新材料股份有限公司 | Semi-continuous metal casting process of heat-resistant copper alloy and application thereof |
| CN112708799A (en) * | 2020-12-21 | 2021-04-27 | 江西理工大学 | High-strength conductive softening-resistant copper alloy and preparation method thereof |
| CN112877553A (en) * | 2021-01-12 | 2021-06-01 | 宁波金田铜业(集团)股份有限公司 | Preparation method of copper-titanium alloy bar wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110512115B (en) | 2021-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110512115A (en) | High strength and high flexibility conductive copper titanium alloy rod bar and preparation method thereof | |
| CN108677041A (en) | 7055 aluminium alloy flats of one kind row and its production technology and application | |
| RU2203339C2 (en) | Titanium aluminide-based alloy | |
| CN1759974A (en) | Mesothermal copper based solder without cadmium, and preparation method | |
| CN102925753B (en) | Nickel-copper alloy with high strength and high corrosion resistance and manufacturing method thereof | |
| CN103074515A (en) | Novel high-conductivity free-cutting selenium copper alloy material and preparation method thereof | |
| CN100408255C (en) | Cadmium-free silver solder containing indium and cerium | |
| CN111519057B (en) | Method for prolonging service life of die for preparing aluminum alloy | |
| CN109465569A (en) | A kind of high temperature brazing titanium based solder and preparation method | |
| CN105033500B (en) | Silver-less solder and preparation method without excessive phenomenon when a kind of welding copper and copper alloy | |
| CN107858567B (en) | A kind of birmastic and preparation method thereof for exempting from heat treatment | |
| CN102248323A (en) | Silver-based cadmium-free medium-temperature solder and preparation method thereof | |
| CN110527865A (en) | A kind of preparation of high-strength high-conductivity copper selenium complex alloy material and deformation method | |
| CN102888528B (en) | Graphite-containing packfong alloy easy for cutting and preparation technology thereof | |
| CN106834797B (en) | A kind of formula and preparation method thereof of adonic dusty material | |
| CN112877553B (en) | Preparation method of copper-titanium alloy bar wire | |
| CN108754237A (en) | A kind of method for preparing powder metallurgy of Ni-Cr-Al-Fe systems high temperature alloy | |
| CN105755310B (en) | A kind of method for improving tin bronze hot-workability | |
| CN102816948A (en) | Copper alloy | |
| CN103757476A (en) | Magnesium-bismuth brass alloy material and preparation method thereof | |
| CN102628123B (en) | Preparation method of high-conduction and high-elasticity alloy rod for wind power equipment | |
| CN109536756A (en) | High-strength abrasion-proof Pb-free copper-alloy material, preparation method and piston shoes | |
| CN105834613B (en) | A kind of solder being exclusively used in four-way valve high frequency brazing | |
| CN106987739B (en) | Copper alloy and preparation method thereof for high ferro contact line | |
| CN102094157B (en) | A kind of tantalum base large amorphous alloy and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |