CN106399749B - A kind of high strength and high flexibility cupro-nickel Si system alloy material and preparation method thereof - Google Patents

A kind of high strength and high flexibility cupro-nickel Si system alloy material and preparation method thereof Download PDF

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CN106399749B
CN106399749B CN201610874673.9A CN201610874673A CN106399749B CN 106399749 B CN106399749 B CN 106399749B CN 201610874673 A CN201610874673 A CN 201610874673A CN 106399749 B CN106399749 B CN 106399749B
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alloy
temperature
nickel
alloy material
solution treatment
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CN106399749A (en
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刘峰
黄国杰
马吉苗
彭丽军
米绪军
邵烨
解浩峰
廖骏骏
李艳锋
冯雪
尹向前
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China Youyan Technology Group Co ltd
NINGBO XINGYE SHENGTAI GROUP CO Ltd
NINGBO XINGYE XINTAI NEW ELECTRONIC MATERIAL CO Ltd
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Ningbo Xingye Xintai New Electronic Material Co Ltd
NINGBO XINGYE SHENGTAI GROUP CO Ltd
Beijing General Research Institute for Non Ferrous Metals
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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
    • 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
    • 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
    • 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 cupro-nickel Si system alloy material and preparation method thereof.The percentage by weight of the material forms：Ni 0.5~3.0%, Co 0.3~3.0%, Si 0.25~1.5%, Mg 0.01~0.05%, B 0.002~0.005%, mischmetal (Sc：Y：La=1:3:5) 0.02~0.05%, the wherein mass ratio of nickel and cobalt is 0.5~6.0, and remaining is Cu, wherein also comprise at least tetra- kinds of element one or two of Cr, Ti, Ag, Zr, alloying element total content is 0.02~0.5%, and it passes through melting and casting, hot rolling, milling face, roughing, intermediate annealing, in roll, the material is prepared in high temperature quick solid solution treatment, finish rolling and Ageing Treatment.The high strength and high flexibility cupro-nickel Si system alloy material of the present invention, fully meets the requirement of great scale integrated circuit high-density lead frame terminal and high-end electronic component precision plug terminal to Cu alloy material.

Description

A kind of high strength and high flexibility cupro-nickel Si system alloy material and preparation method thereof
Technical field
The present invention relates to a kind of high strength and high flexibility cupro-nickel Si system alloy material and preparation method thereof, belongs to non-ferrous metals processing neck Domain.
Background technology
High strength and high flexibility acid bronze alloy is by the performance such as its high intensity, excellent elasticity, endurance, elastic hysteresis be small, extensively Ground is used in the industries such as medical treatment, aviation and navigation navigation instrument, machine-building, instrument and instrument manufacturing.On domestic market Copper-Nickel-Aluminium Alloy mainly based on the materials such as tin-phosphor bronze and beryllium-bronze, due to Sn-P-Cu alloy elastic performance and it is anti-should Power relaxation property is poor, most of to be applied in the use environment relatively low to elastic performance requirement.
Beraloy is the alloy that a kind of Precipitation is strengthened, have after fixation rates high intensity, hardness, Elastic limit, and stability is good, have anti-corrosion, wear-resisting, endurance, low temperature resistant, nonmagnetic, electrical and thermal conductivity is good, impact when The series of advantages such as spark will not be produced, " king of coloured elastomeric material " is described as, can be widely applied to electronic apparatus, communication instrument The multiple fields such as device, Aero-Space, petrochemical industry, metallurgical mine, vehicle appliance, machine-building, it has also become the development of the national economy In indispensable essential industry material.Beryllium-bronze can be divided into high beryllium copper (Be according to beryllium content height：It is 1.6-2.2%) and low Beryllium copper (Be：0.15-0.7%) the class of alloy two, wherein high beallon belongs to high strength type elastic alloy, low beryllium content copper alloy belongs to Conductivity type elastic alloy.In late 1990s, with developing rapidly for automobile industry, the dosage of electronic component obtains quickly Increase, to the performance requirement of beraloy also more and more higher, especially the control system position in automobile engine nacelle part, Its operating temperature is higher, and shakes severe, it is desirable to and beraloy has higher high temperature resistant and stress relaxation resistance power, This causes high intensity beryllium-bronze can not meet the requirement of automobile high-current relay and high temperature connector.2003, Brush Wellman companies have developed a kind of with high-strength by adjusting Ni, Be constituent content ratio and production technology in low-beryllium bronze alloy (tensile strength is more than 1000MPa, and conductance is more than for degree, high conductivity and the alloy of high resistance to stress relaxed type beraloy -390 85%) 40%IACS, 150 DEG C of insulation 1000h stress relaxation-resistant are more than, breaching C17200 alloys has the low conductance of high intensity Rate and C17510 alloys have the low intensive performance bottleneck of high conductivity, are successfully applied in automobile high-current relay and connector Field.
Beryllium-bronze is due to the health of this hypertoxic element containing beryllium, in process of production serious harm people.Each cubic metre As long as there is the dust of one milligram of beryllium in air, it will make one to catch acute pneumonia-berylliosis of lung disease, the group of the compound of beryllium in animal The colloid substance knitted and form solubility in blood plasma, make histoorgan that various lesions occur, beryllium is also possible to draw in lung and bone Send out cancer.In addition, beryllium-bronze under higher than 200 DEG C environment in use, its intensity, elasticity drastically decline, stress relaxation rate is up to More than 40%, cause the change of the arc extinguishing ability, spring load characteristic of relay in the operating condition, elastic performance drastically reduces, very To operational failure.Further, since the complex manufacturing of beraloy, structure property is sensitive to heat treatment, in technological operation Difference easily cause that grain size is uneven, hardening constituent separates out uneven, easily occur during causing alloy under arms The service life that crackle reduces material is short.Cu-Ti, Cu-Ni-Al, Cu- that the former Soviet Union, the U.S., Japan and China develop in succession The new no beryllium elastic copper alloy such as Ni-Sn, " Ka Milong ", " card thick forest ", MHII15-20 and spedex alloy.These alloys all have There is at a relatively high intensity (>=1000MPa), and higher intensity and stable elastic performance are remained in that at 150 DEG C, but The conductance of these alloys is than relatively low, no more than 15%IACS, less than high beraloy.
In the recent period, Japanese JX days ore metal Co., Ltd. is by adjusting the working process parameter and microstructure form of alloy (CN 101646791, CN 101646792, CN103052728, CN103361512 etc.), develops a series of different conditions High strength and high flexibility Cu-Ni-Co-Si systems conductivity type copper alloy, its performance meet varying environment close to even more than low beryllium alloy performance Under requirement.Therefore, high-strength, high-elastic, conductive, high resistance to stress relaxation environmentally friendly high-performance elastic copper is developed to close Gold is very significant for enrich China's high property copper alloy system.
The content of the invention
The main object of the present invention is to make up the deficiency of existing copper alloy property, develops a kind of high strength and high flexibility cupro-nickel silicon systems Alloy material and preparation method thereof.
A kind of high strength and high flexibility cupro-nickel Si system alloy material, the percentage by weight composition of the material are：Ni 0.5~3.0%, Co 0.3~3.0%, Si 0.25~1.5%, Mg 0.01~0.05%, B 0.002~0.005%, mischmetal (Sc：Y： La, the weight ratio preferably 1 between three elements:3:5) 0.02~0.05%, wherein Ni and Co mass ratio are 0.5~6.0, Remaining is Cu, also comprises at least tetra- kinds of element one or two of Cr, Ti, Ag, Zr in alloy in addition, and alloying element total content is 0.02~0.5%, preferably 0.05~0.3%, the average grain size of the Cu alloy material is 2 μm~10 μm, and crystal grain chi Very little standard deviation meet σ be less than 1.0 μm, can be observed on the horizontal and vertical section of Cu alloy material particle diameter for 2nm~ 10nm Ni2Si and Co2Si precipitated phases (merge and are referred to as (Ni, Co)2Si precipitated phases) individual number density be 5 × 1013~5 × 1014 Individual/mm3, wherein particle diameter is 2nm~5nm (Ni, Co)2Si precipitated phases number density and particle diameter are 5nm~10nm (Ni, Co)2Si is analysed The ratio for going out phase number density is 1~3.
Added alloys producing：
Nickel, cobalt：Nickel, cobalt element mainly form Ni in ag(e)ing process with element silicon2Si and Co2Si precipitated phases, with nickel, The difference of cobalt element content, the quantity of two kinds of precipitated phases change, but because nickel, cobalt element physical characteristic are more similar, Ni2Si and Co2Si precipitated phases have the phase same sex in characteristic aspects such as form, sizes.Therefore, two class precipitated phases are referred to as (Ni, Co)2Si precipitated phases.
Magnesium：Magnesium elements are main in ag(e)ing process to play refinement Ni2Si and Co2Si precipitated phases, the disperse of precipitated phase is promoted to analyse Go out, effectively improve the stress relaxation-resistant and yield strength of alloy.
Boron：From copper-boron binary phase diagraml, in 1013 DEG C of eutectic temperature, maxima solubility of the boron in copper is 0.05wt%, as the decline of temperature is rapidly decreased to zero, but boron does not form compound with copper, mainly assembles in crystal boundary, reduces The plastic deformation ability of alloy.In addition, add micro boron element in the alloy, because boron element radius with copper differs larger, Easily cause strict distortion of lattice, significantly improve the elastic performance of alloy.
Mischmetal：The effect of rare earth is added in copper alloy：(1) rare earth can effectively with the oxygen in alloy, sulphur, lead and The elements such as bismuth are combined, and are generated high melting compound, are played a part of the impurity such as deoxidation, desulfurization；(2) can be with copper or other alloys Element forms high melting compound, with high melting compound or originally as forming core core, the tissue of refining alloy.When into alloy When adding single rare earth element, because rare earth element has the chemical property of ripple living, it can occur with copper and other elements rapidly Reaction, during melting and casting, for semicontinuous big ingot casting, it is easy to occur that structure property is uneven to be showed As.Because the fusing point of rare-earth elements of lanthanum, scandium and yttrium three is respectively 799 DEG C, 1541 DEG C and 1522 DEG C, by the alloy Three kinds of rare earth elements of compound addition, are easily combined with impurity element first with lanthanum element, the impurity elements such as alloy oxygen, sulphur are entered Row removal of impurities is handled；And then the characteristics of using scandium and higher yttrium fusing point, lasting, stable change is carried out to the tissue of alloy Matter acts on, and ensures the uniformity of alloy grain size.
Chromium, zirconium, silver and titanium：The addition of four kinds of elements of the above mainly with (Ni, Co)2Si phases act synergistically, and improve and close The combination property of gold.Silver element adds in fine copper alloy mainly plays solid solution, but adds in Cu-Ni-Co-Si systems alloy Add, can promote (Ni, Co)2While Si phases separate out, and can suppresses growing up for precipitated phase, has been obviously improved the reinforcing of silver element Effect.On the one hand chromium, zirconium and titanium elements can promote (Ni, Co)2While Si phases separate out, and can suppresses growing up for precipitated phase, On the other hand, three kinds of elements can separate out the precipitated phase of simple substance or form hardening constituent with copper, but by three kinds of nickel, cobalt and silicon element analysis The influence for going out and spreading, the Precipitating Feature of three kinds of precipitated phases can be obviously improved the comprehensive of alloy also there occurs significant change Energy.
The control of alloy grain and precipitate size：Disclosed in CN103361512 alloys, the crystallite dimension for increasing alloy can Effectively to improve the stress relaxation resistance of alloy.But high strength and high flexibility copper alloy service condition often below 200 DEG C, The motion of dislocation mainly turns into the barrier for hindering dislocation motion in transgranular generation, crystal boundary under this environment, and crystal boundary is more, and dislocation is got over Hardly possible motion.In addition, the size and uniformity of precipitated phase also can effectively hinder the motion of dislocation, precipitate size is smaller, and effect is got over Substantially.Therefore, by using high temperature quick solid solution treatment technology in this patent, in the premise that guarantee alloying element can be dissolved completely Under, ensure that alloy has rational crystallite dimension.In addition, by the regulation and control of follow-up system of ageing treatment, can obtain preferably Precipitate size and the spread.
It is a further object of the present invention to provide the preparation method of above-mentioned high strength and high flexibility cupro-nickel Si system alloy material.
A kind of preparation method of high strength and high flexibility cupro-nickel Si system alloy material, comprises the following steps：A. according to mass percent Carry out dispensing, feed intake, melting and casting, b. hot rollings, c. milling faces, d. roughing, e. intermediate annealing process, roll in f., g. high temperature is fast Fast solution treatment, h. finish rolling, i. Ageing Treatments.
In step a, founding is carried out using antivacuum intermediate frequency furnace, the temperature of described melting is 1250~1300 DEG C, The temperature control of the casting is at 1180~1230 DEG C.
Before melting, cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloys, Cu-3%B intermediate alloys and magnesium ingot or addition copper chromium intermediate alloy, pure titanium, One or both of fine silver and copper zirconium intermediate alloy, temperature is risen to 1250~1300 DEG C, after melt is completely melt, uniformly Stirring, casting temperature are controlled at 1180~1230 DEG C, are cast after being incubated 20min.
In step b, above-mentioned alloy cast ingot is heated in stepping batch-type furnace, temperature is 920~950 DEG C, during insulation Between be 2~6h, then carry out hot rolling again, finishing temperature control then carries out water cooling at 800~850 DEG C.
In step d, the sheet alloy behind milling face is subjected to roughing, cold processing ratio is 80~90%.
In step e, by after cold rolling sheet material place bell-type annealing furnace carry out intermediate annealing process, annealing temperature be 600~ 700 DEG C, soaking time is 6~10h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
In step f, rolled during the sheet alloy after annealing is carried out, cold processing ratio is 70~80%.
In step g, by after cold rolling sheet alloy carry out high temperature quick solid solution treatment, solid solution temperature be 950 DEG C~ 1050 DEG C, 8~12m/min of annealing speed, 50~70 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
In step h, the alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio is 10~50%.
In step i, sheet material after cold rolling is placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 350~550 DEG C, soaking time is 1~6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
Advantages of the present invention：The present invention passes through thermodynamic software, high temperature quick solid solution treatment and the supporting place of corresponding timeliness Reason technology carries out composition design and optimization and the regulation and control of microstructure to copper alloy, obtain a kind of fine microstructures uniformly, precipitated phase The high strength and high flexibility cupro-nickel Si system alloy material of Dispersed precipitate, its chemical composition are：Ni 0.5~3.0%, Co 0.3~3.0%, Si 0.25~1.5%, Mg 0.01~0.05%, B 0.002~0.005%, mischmetal (Sc：Y：La=1:3:5)0.02 ~0.05%, the wherein mass ratio of nickel and cobalt is 0.5~6.0, and remaining is Cu, wherein also comprising at least tetra- kinds of Cr, Ti, Ag, Zr Element is one or two kinds of, and alloying element total content is 0.02~0.5%, preferably 0.05~0.3%.The Cu alloy material is put down Equal crystallite dimension is 2 μm~10 μm, and the standard deviation of crystallite dimension meets that σ is less than 1.0 μm, Cu alloy material transverse direction and The Ni that particle diameter is 2nm~10nm can be observed on longitudinal cross-section2Si and Co2Si precipitated phases (merge and are referred to as (Ni, Co)2Si is separated out Phase) individual number density be 5 × 1013~5 × 1014Individual/mm3, wherein particle diameter is 2nm~5nm (Ni, Co)2Si precipitated phase numbers are close Degree and particle diameter are 5nm~10nm (Ni, Co)2The ratio of Si precipitated phase number densitys is 1~3.By melting and casting, hot rolling, Milling face, roughing, intermediate annealing, in roll, the material is prepared in high temperature quick solid solution treatment, finish rolling and Ageing Treatment.The present invention High strength and high flexibility cupro-nickel Si system alloy material tensile strength sigmab800~950MPa, yield strength σ0.2750~850MPa, modeling Property elongation percentage δ 4~10%, 40~50%IACS of conductance, 125~135GPa of elastic modulus E, at room temperature 100h resistance to stress Relaxation rate 95~99%, fully meets great scale integrated circuit high-density lead frame terminal and high-end electronic component is accurate Requirement of the plug terminal to Cu alloy material.
Below by embodiment, the present invention will be further described, but is not meant to the scope of the present invention Limitation.
Embodiment
The high strength and high flexibility cupro-nickel Si system alloy material of the present invention, it contains the chemical composition Ni0.5 of following percetage by weight ~3.0%, Co 0.3~3.0%, Si 0.25~1.5%, Mg 0.01~0.05%, B 0.002~0.005%, mixing are dilute Soil (Sc：Y：La=1:3:5) 0.02~0.05%, wherein Ni and Co mass ratio are 0.5~6.0, and remaining is Cu, wherein also extremely Including tetra- kinds of element one or two of Cr, Ti, Ag, Zr less, alloying element total content is 0.02~0.5%, preferably 0.05~ 0.3%.The average grain size of the Cu alloy material is 2 μm~10 μm, and the standard deviation of crystallite dimension meets that σ is less than 1.0 μm, the Ni that particle diameter is 2nm~10nm can be observed on the horizontal and vertical section of Cu alloy material2Si and Co2Si is separated out Phase (merges and is referred to as (Ni, Co)2Si precipitated phases) individual number density be 5 × 1013~5 × 1014Individual/mm3, wherein particle diameter be 2nm~ 5nm(Ni、Co)2Si precipitated phases number density and particle diameter are 5nm~10nm (Ni, Co)2The ratio of Si precipitated phase number densitys is 1 ~3.
The preparation of above-mentioned high strength and high flexibility cupro-nickel Si system alloy material and processing method, including following technological process：A. according to Mass percent carries out dispensing, fed intake, melting and casting, b. hot rollings, c. milling faces, d. roughing, e. intermediate annealing process, in f. Roll, g. high temperature quick solid solution treatments, h. finish rolling, i. Ageing Treatments.Wherein, specific feeding sequence is：Before melting, non-real Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in empty induction furnace, after above material melts, continues to add Cu- mischmetals In intermediate alloy, Cu-3%B intermediate alloys and magnesium ingot or addition copper chromium intermediate alloy, pure titanium, fine silver and copper zirconium intermediate alloy One or two, temperature is risen to 1250~1300 DEG C, after melt is completely melt, uniform stirring, the temperature control of casting exists 1180~1230 DEG C, cast after being incubated 20min；Hot-rolled temperature is 920~950 DEG C, and soaking time is 2~6h, finishing temperature control System is at 800~850 DEG C；The working modulus of roughing is 80~90%；It is 600 DEG C~700 DEG C to make annealing treatment temperature, soaking time 6 ~10h, the type of cooling are the mixed gas of hydrogen and nitrogen.In the working modulus rolled be 70~80%；High temperature quick solid solution treatment, Solid solution temperature is 950 DEG C~1050 DEG C, 8~12m/min of annealing speed, 50~70 DEG C/s of cooling velocity, and the type of cooling is The mixed gas of nitrogen and hydrogen；The working modulus of finish rolling is 10~50%；Aging temp is 350~550 DEG C, soaking time 1 ~6h, the type of cooling are the mixed gas of hydrogen and nitrogen.
Embodiment 1
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy and Cu-3%B intermediate alloys.The composition of alloy is shown in Table 1 embodiment 1.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys and magnesium ingot, temperature is risen to 1250 DEG C, treats melt After being completely melt, uniform stirring, the temperature control of casting is cast at 1180 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 920 DEG C, soaking time For 6h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 800 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 80%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 700 DEG C, soaking time 6h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 80%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1050 DEG C, annealing speed 8m/min, 70 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 10%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 350 DEG C, Soaking time is 6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 1 in 2.
Embodiment 2
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy and Cu-3%B intermediate alloys.The composition of alloy is shown in Table 1 embodiment 2.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys and magnesium ingot, temperature is risen to 1275 DEG C, treats melt After being completely melt, uniform stirring, the temperature control of casting is cast at 1220 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 935 DEG C, soaking time For 4h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 825 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 85%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 650 DEG C, soaking time 8h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1000 DEG C, annealing speed 10m/min, 60 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 30%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 450 DEG C, Soaking time is 4h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 2 in 2.
Embodiment 3
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy and Cu-3%B intermediate alloys.The composition of alloy is shown in Table 1 embodiment 3.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys and magnesium ingot, temperature is risen to 1300 DEG C, treats melt After being completely melt, uniform stirring, the temperature control of casting is cast at 1230 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 950 DEG C, soaking time For 2h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 850 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 90%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 600 DEG C, soaking time 10h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 70%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 950 DEG C, annealing speed 12m/min, 50 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 50%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 550 DEG C, Soaking time is 1h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 3 in 2.
Embodiment 4
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy and Cu-3%B intermediate alloys.The composition of alloy is shown in Table 1 embodiment 4.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys and magnesium ingot, temperature is risen to 1260 DEG C, treats melt After being completely melt, uniform stirring, the temperature control of casting is cast at 1200 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 920 DEG C, soaking time For 4h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 800 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 85%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 600 DEG C, soaking time 8h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1000 DEG C, annealing speed 12m/min, 60 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 20%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 400 DEG C, Soaking time is 4h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 4 in 2.
Embodiment 5
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy and Cu-3%B intermediate alloys.The composition of alloy is shown in Table 1 embodiment 5.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys and magnesium ingot, temperature is risen to 1280 DEG C, treats melt After being completely melt, uniform stirring, the temperature control of casting is cast at 1210 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 950 DEG C, soaking time For 2h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 820 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 85%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 650 DEG C, soaking time 8h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1050 DEG C, annealing speed 12m/min, 50 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 30%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 400 DEG C, Soaking time is 6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 5 in 2.
Embodiment 6
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy and Cu-3%B intermediate alloys.The composition of alloy is shown in Table 1 embodiment 6.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys and magnesium ingot, temperature is risen to 1250 DEG C, treats melt After being completely melt, uniform stirring, the temperature control of casting is cast at 1200 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 920 DEG C, soaking time For 4h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 800 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 85%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 600 DEG C, soaking time 8h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1000 DEG C, annealing speed 12m/min, 50 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 30%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 400 DEG C, Soaking time is 6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 6 in 2.
Embodiment 7
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy, Cu-3%B intermediate alloys and fine silver.The composition of alloy is shown in Table 1 embodiment 7.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot and fine silver, temperature is risen to 1270 DEG C, treated After melt is completely melt, uniform stirring, the temperature control of casting is cast at 1200 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 950 DEG C, soaking time For 4h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 820 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 80%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 600 DEG C, soaking time 10h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1000 DEG C, annealing speed 12m/min, 70 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 40%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 450 DEG C, Soaking time is 6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 7 in 2.
Embodiment 8
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy, Cu-3%B intermediate alloys, fine silver and copper zirconium intermediate alloy.The composition of alloy is shown in Table 1 embodiment 8.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot, fine silver and copper zirconium intermediate alloy, by temperature 1300 DEG C are risen to, after melt is completely melt, uniform stirring, the temperature control of casting is cast at 1220 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 940 DEG C, soaking time For 4h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 850 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 90%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 650 DEG C, soaking time 6h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 70%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1000 DEG C, annealing speed 10m/min, 60 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 50%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 450 DEG C, Soaking time is 6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 8 in 2.
Embodiment 9
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy, Cu-3%B intermediate alloys and copper chromium intermediate alloy.The composition of alloy is shown in Table 1 embodiment 9.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot and copper chromium intermediate alloy, temperature is risen to 1250 DEG C, after melt is completely melt, uniform stirring, the temperature control of casting is cast at 1220 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 950 DEG C, soaking time For 4h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 850 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 80%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 700 DEG C, soaking time 6h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1000 DEG C, annealing speed 10m/min, 60 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 30%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 450 DEG C, Soaking time is 6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 9 in 2.
Embodiment 10
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy, Cu-3%B intermediate alloys, copper chromium intermediate alloy and pure titanium.The composition of alloy is shown in Table 1 embodiment 10.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot, copper chromium intermediate alloy and pure titanium, by temperature 1270 DEG C are risen to, after melt is completely melt, uniform stirring, the temperature control of casting is cast at 1200 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 950 DEG C, soaking time For 6h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 820 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 80%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 600 DEG C, soaking time 6h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 950 DEG C, annealing speed 10m/min, 50 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 10%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 450 DEG C, Soaking time is 6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 10 in 2.
Embodiment 11
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy, Cu-3%B intermediate alloys, copper chromium and copper zirconium intermediate alloy.The composition of alloy is shown in Table 1 embodiment 11.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot, copper chromium and copper zirconium intermediate alloy, by temperature 1300 DEG C are risen to, after melt is completely melt, uniform stirring, the temperature control of casting is cast at 1200 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 950 DEG C, soaking time For 6h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 850 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 90%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 600 DEG C, soaking time 6h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1000 DEG C, annealing speed 10m/min, 70 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 30%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 450 DEG C, Soaking time is 6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 11 in 2.
Embodiment 12
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy, Cu-3%B intermediate alloys and pure titanium.The composition of alloy is shown in Table 1 embodiment 12.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot and pure titanium, temperature is risen to 1300 DEG C, treated After melt is completely melt, uniform stirring, the temperature control of casting is cast at 1200 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 950 DEG C, soaking time For 6h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 830 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 80%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 630 DEG C, soaking time 6h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 950 DEG C, annealing speed 10m/min, 70 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 40%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 400 DEG C, Soaking time is 2h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 12 in 2.
Embodiment 13
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy, Cu-3%B intermediate alloys and copper zirconium intermediate alloy.The composition of alloy is shown in Table 1 embodiment 13.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot and copper zirconium intermediate alloy, temperature is risen to 1250 DEG C, after melt is completely melt, uniform stirring, the temperature control of casting is cast at 1180 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 920 DEG C, soaking time For 6h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 800 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 85%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 630 DEG C, soaking time 6h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 950 DEG C, annealing speed 10m/min, 70 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 50%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 500 DEG C, Soaking time is 3h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 13 in 2.
Embodiment 14
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy, Cu-3%B intermediate alloys, copper chromium intermediate alloy and pure titanium.The composition of alloy is shown in Table 1 embodiment 14.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot, copper chromium intermediate alloy and pure titanium, by temperature 1270 DEG C are risen to, after melt is completely melt, uniform stirring, the temperature control of casting is cast at 1200 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 950 DEG C, soaking time For 6h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 820 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 80%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 650 DEG C, soaking time 6h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 75%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 1000 DEG C, annealing speed 10m/min, 60 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 50%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 500 DEG C, Soaking time is 4h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 14 in 2.
Embodiment 15
The alloy of the present invention uses following raw material melting：Cathode copper, pure cobalt, electrolytic nickel, pure silicon, magnesium ingot, Cu- mischmetals Intermediate alloy, Cu-3%B intermediate alloys, fine silver and pure titanium.The composition of alloy is shown in Table 1 embodiment 15.
1. melting：Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in non-vacuum induction furnace, treats that above material melts Afterwards, continue to add Cu- mischmetals intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot, fine silver and pure titanium, temperature is risen to 1250 DEG C, after melt is completely melt, uniform stirring, the temperature control of casting is cast at 1200 DEG C after being incubated 20min.
2. hot rolling：Above-mentioned alloy cast ingot is placed in stepping batch-type furnace and heated, temperature is 950 DEG C, soaking time For 6h, hot rolling is then carried out again, and finishing temperature control then carries out water cooling at 820 DEG C.
3. roughing：Sheet alloy behind milling face is subjected to roughing, cold processing ratio 80%.
4. intermediate annealing process：Sheet material after cold rolling is placed into bell-type annealing furnace and carries out intermediate annealing process, annealing temperature For 650 DEG C, soaking time 6h, the type of cooling is the mixed gas of hydrogen and nitrogen.
Rolled in 5.：Rolled during sheet alloy after annealing is carried out, cold processing ratio 80%.
6. high temperature quick solid solution treatment：Sheet alloy after cold rolling is subjected to high temperature quick solid solution treatment, solution treatment temperature Spend for 950 DEG C, annealing speed 10m/min, 60 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen.
7. finish rolling：Alloy strip steel rolled stock after solution treatment is subjected to finish rolling, cold processing ratio 50%.
8. Ageing Treatment：Sheet material after cold rolling to be placed into bell-type annealing furnace and carries out Ageing Treatment, aging temp is 350 DEG C, Soaking time is 6h, and the type of cooling is the mixed gas of hydrogen and nitrogen.
By above melting and casting, hot rolling, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, After the working processes such as finish rolling, Ageing Treatment, its performance is shown in Table the embodiment 15 in 2.
The embodiment 1-15 of table 1 alloying component formula (wt%)
The embodiment 1-15 of table 2 alloy property table
Remarks：(1) N (2nm~10nm)：Particle diameter is the individual number density of 2nm~10nm (Ni, Co) 2Si precipitated phases；
(2)λ：The individual number density that particle diameter is the individual number density of 2nm~5nm precipitated phases and particle diameter is 5nm~10nm precipitated phases Ratio.
The present invention relates to a kind of high strength and high flexibility cupro-nickel Si system alloy material and preparation method thereof.The percentage by weight of the material Form and be：Ni 0.5~3.0%, Co 0.3~3.0%, Si 0.25~1.5%, Mg 0.01~0.05%, B 0.002~ 0.005%, mischmetal (Sc：Y：La=1:3:5) 0.02~0.05%, the wherein mass ratio of nickel and cobalt is 0.5~6.0, its Remaining is Cu, wherein also comprise at least tetra- kinds of element one or two of Cr, Ti, Ag, Zr, alloying element total content is 0.02~ 0.5%, preferably 0.05~0.3%.The average grain size of the Cu alloy material is 2 μm~10 μm, and the mark of crystallite dimension Quasi- deviation meets that σ is less than 1 μm, and it is 2nm~10nm's that particle diameter can be observed on the horizontal and vertical section of Cu alloy material (Ni、Co)2The individual number density of Si precipitated phases is 5 × 1013~5 × 1014Individual/mm3, wherein particle diameter is 2nm~5nm (Ni, Co)2Si Precipitated phase number density and particle diameter are 5nm~10nm (Ni, Co)2The ratio of Si precipitated phase number densitys is 1~3.The present invention's The tensile strength sigma of high strength and high flexibility cupro-nickel Si system alloy materialb800~950MPa, yield strength σ0.2750~850MPa, plasticity Elongation percentage δ 4~10%, 40~50%IACS of electrical conductivity, 125~135GPa of elastic modulus E, at room temperature 100h resistance to stress pine Relaxation rate 95~99%, fully meets great scale integrated circuit high-density lead frame terminal and high-end electronic component precision connects Requirement of the insertion terminal to Cu alloy material.

Claims (5)

  1. A kind of 1. high strength and high flexibility cupro-nickel Si system alloy material, it is characterised in that：Successively by dispensing, feed intake, melting and casting, heat Roll, milling face, roughing, intermediate annealing process, in roll, high temperature quick solid solution treatment, finish rolling, Ageing Treatment alloy material weight Percentage forms：Ni 0.5 ~ 3.0%, Co 0.3 ~ 3.0%, Si 0.25 ~ 1.5%, Mg 0.01 ~ 0.05%, B 0.002 ~ 0.005%, mischmetal 0.02 ~ 0.05%, wherein mischmetal component ratio are Sc：Y：La=1：3：5, Ni and Co mass ratio For 0.5 ~ 6.0, remaining is Cu；The average grain size of the alloy material is 2 μm ~ 10 μm, and the standard deviation of crystallite dimension Difference meets that σ is less than 1.0 μm, and Ni of the particle diameter for the nm of 2 nm ~ 10 can be observed on the horizontal and vertical section of alloy material2Si And Co2The individual number density of Si precipitated phases is 5 × 1013~5×1014Individual/mm3, wherein particle diameter is the nm of 2 nm ~ 5 Ni2Si and Co2Si Precipitated phase number density and particle diameter are the nm of 5 nm ~ 10 Ni2Si and Co2The ratio of Si precipitated phase number densitys is 1 ~ 3.
  2. 2. high strength and high flexibility cupro-nickel Si system alloy material according to claim 1, it is characterised in that：The alloy material is also at least Including one or both of tetra- kinds of elements of Cr, Ti, Ag, Zr, and contained above-mentioned element is the 0.02 ~ 0.5% of total content.
  3. A kind of 3. preparation method of high strength and high flexibility cupro-nickel Si system alloy material, it is characterised in that：Percentage by weight forms：Ni 0.5 ~ 3.0%, Co 0.3 ~ 3.0%, Si 0.25 ~ 1.5%, Mg 0.01 ~ 0.05%, B 0.002 ~ 0.005%, mischmetal 0.02 ~ 0.05%, wherein mischmetal component ratio is Sc：Y：La=1：3：5, wherein Ni and Co mass ratio are 0.5 ~ 6.0, wherein also Including one or both of tetra- kinds of elements of Cr, Ti, Ag, Zr that content is 0.02 ~ 0.5%, remaining for Cu alloy material system Preparation Method comprises the following steps：a：Dispensing is carried out according to mass percent, is fed intake, melting and casting, antivacuum in the step Cathode copper, electrolytic nickel, pure cobalt, pure silicon are added in intermediate frequency furnace, after above material melts, it is dilute to continue addition Cu- mixing Native intermediate alloy, Cu-3%B intermediate alloys, magnesium ingot and at least add in copper chromium, copper zirconium intermediate alloy, fine silver and pure titanium one Kind or two kinds, temperature is risen to 1250~1300 DEG C, after melt is completely melt, cast after uniform stirring；b：Hot rolling, it is described The temperature of hot rolling is 920~950 DEG C, and soaking time is 2~6h, and the finishing temperature after hot rolling is 800~850 DEG C；c：Milling face；d： Roughing；e：Intermediate annealing process, described intermediate annealing process temperature are 600~700 DEG C, and soaking time is 6~10 h, cooling Mode is the mixed gas of hydrogen and nitrogen；f：In roll；g：High temperature quick solid solution treatment, described high temperature quick solid solution treatment temperature Spend for 950~1050 DEG C, 50~70 DEG C/s of cooling velocity, the type of cooling is the mixed gas of nitrogen and hydrogen；h：Finish rolling；i：When Effect processing, aging temperature are 350~550 DEG C, and soaking time is 1~6h.
  4. 4. the preparation method of high strength and high flexibility cupro-nickel Si system alloy material according to claim 3, it is characterised in that：The casting The temperature made is 1180 ~ 1230 DEG C.
  5. 5. the preparation method of high strength and high flexibility cupro-nickel Si system alloy material according to claim 3, it is characterised in that：Described Roughing working modulus is 80~90%, and working modulus is rolled in described for 70~80%.
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