CN108330320A - A kind of high-performance Cu-Ni-Si alloy lead frames materials and preparation method thereof - Google Patents
A kind of high-performance Cu-Ni-Si alloy lead frames materials and preparation method thereof Download PDFInfo
- Publication number
- CN108330320A CN108330320A CN201810148287.0A CN201810148287A CN108330320A CN 108330320 A CN108330320 A CN 108330320A CN 201810148287 A CN201810148287 A CN 201810148287A CN 108330320 A CN108330320 A CN 108330320A
- Authority
- CN
- China
- Prior art keywords
- alloy
- temperature
- performance
- lead frames
- treatment
- 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
-
- 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
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- 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-performance Cu Ni Si alloy lead frames materials, including following components in percentage by weight：4.0~9.0% nickel, 1.0~1.5% silicon, 0.1~0.4% silver, 0.05~0.10% phosphorus, surplus are copper and inevitable impurity element.A kind of preparation method of high-performance Cu Ni Si alloy lead frames materials of the present invention, its scope of design by expanding Ni, Si content, increase the quantity of alloy second phase of in-situ preparation in process of setting, and precipitated phase is precipitated to realize the promotion of intensity by the solid-state phase changes in heat treatment, the Cu Ni Si alloys of tensile strength and conductivity in optimal proportion are prepared, to meet the performance requirement of large scale integrated circuit copper alloy.
Description
Technical field
The present invention relates to Cu alloy material technical field, specifically a kind of Cu-Ni-Si alloy lead wires of high Ni, Si content
Frame material and preparation method thereof.
Background technology
With the continuous development of microelectronics industry, smart home, wearable device weed out the old and bring forth the new and high-performance computer
Change is accelerated increasingly, and hyundai electronics industry not only has higher requirements to the line optimization of integrated circuit, making technology, as integrated
The indispensable blaster fuse frame material of circuit package, because it carries multiple of fixed chip, information output and circuit heat dissipation etc.
Business.How research hotspot that its intensity, thermal conductivity and electric conductivity have become copper alloy field is improved conscientiously.Currently, existing
The circuit lead frame copper alloy mainly developed in technology has three kinds of Cu-Fe-P, Cu-Cr-Zr and Cu-Ni-Si alloy.
Wherein, Cu-Ni-Si alloys are widely used with its balanced electric conductivity with hardness number.
But the intensity index of copper alloy and conductive capability have shifting correlation, i.e.,：Ensure preferably to lead
Electric rate is it is necessary to making sacrifices to strength character.In Cu-Ni-Si systems alloy, nickel and silicon addition can excessively inhibit alloy
Electric conductivity, therefore, the total addition level of nickel and silicon in Cu-Ni-Si systems alloy are usually not more than more 5wt%.But Ni-Si additive amounts compared with
When few, the intensity of alloy will be relatively low, this is because：Cu-Ni-Si systems alloy is mainly generated with the precipitated phase being precipitated in timeliness
Precipitation strength as strengthening mechanism.When Ni-Si additive amounts are less, the negligible amounts of precipitated phase are generated, final alloy is most
Whole tensile strength will be relatively low.Therefore, the key point of alloy preparation technology is the premise for ensureing to significantly reduce electric conductivity
Under, farthest improve its intensity.
Chinese patent on April 24th, 2012（Publication number：CN 104630671 A）Disclosed one kind high property used for lead frame
The heat treatment of energy copper alloy plate strip and processing technology pass through the techniques such as continuous casting, hot rolling, continuous annealing, cold rolling, ageing treatment, system
Though standby alloy conductivity maintains 60 ~ 70%IACS, the tensile strength of alloy is only 450MPa or so.Chinese patent
On September 1st, 2015（Publication number：CN 105525135A）A kind of disclosed high-strength Cu-Ni-Si alloy of less anisotropy index
And its preparation process, the technique accurately control the techniques such as texture features and control cold rolling by process annealing, grade and stage
Lower rate, obtains lateral shear band, effectively improves anisotropy.But the total content of Ni, Si are 2.5 ~ 4wt% in its alloy, are not had
Have and generate sufficient amount of precipitated phase, therefore, the raising of tensile strength is very limited.
Invention content
It is asked to solve the technology that Cu-Ni-Si alloy conductives rate in the prior art cannot be taken into account simultaneously with tensile strength
Topic.In view of partial solid solubilities of the Si in Cu matrixes, the strong of alloy only cannot be obtained by the precipitated phase being precipitated in timeliness
The problem of degree is further promoted.The present invention provides a kind of preparation method of high-performance Cu-Ni-Si alloy lead frames materials,
Its scope of design by expanding Ni, Si content, increases the quantity of alloy second phase of in-situ preparation in process of setting, and rely on
Precipitated phase is precipitated to realize the promotion of intensity in solid-state phase changes in heat treatment, has prepared tensile strength and conductivity and has matched in optimal
The Cu-Ni-Si alloys of ratio, to meet the performance requirement of large scale integrated circuit copper alloy.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of high-performance Cu-Ni-Si alloys
Blaster fuse frame material, including following components in percentage by weight：4.0~9.0% nickel, 1.0~1.5% silicon, 0.1~0.4%
Silver, 0.05~0.10% phosphorus, surplus be copper and inevitable impurity element.The weight ratio of the silicon and nickel is 1：（4~6）.
A kind of preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：It is matched according to above-mentioned weight percent, weighs silico briquette, nickel block, copper billet, silver powder and phosphorus powder respectively, put into vacuum
Melting is carried out in non-consumable electrode arc melting stove, it is 5 × 10 to be evacuated to pressure in stove-2Pa is then charged in argon gas to stove
Pressure is 45kPa, and control in-furnace temperature is increased to 1220~1290 DEG C of progress meltings, obtains liquid alloy, spare；
（2）Mold：By step（1）Liquid alloy obtained is poured to cast from and is placed in the ingot mould of ultrasound field in advance, and control pours temperature
Degree is 1100~1250 DEG C, and ingot casting is made, spare；
（3）Hot rolling-press quenching：By step（2）Ingot casting obtained is heated to 840~920 DEG C, keeps the temperature 10~20min, then into
The processing of row hot rolling deformation, control hot rolling deformation amount is 40~70%, and press quenching, and slab is made, spare；
（4）Solution treatment：By step（3）Slab obtained is placed in heat-treatment furnace, is carried out grade and stage processing, is then carried out water
It quenches；
（5）Milling face：To step（4）Slab after water quenching carries out milling surface treatment, is lacked with removing alloy surface oxide and heat treatment
It falls into；
（6）Cold rolling-timeliness：To step（5）Slab after milling surface treatment carries out cold-rolling treatment, and control deflection is 20~80%, cold
It is 0.1 s to roll rate-1, ageing treatment is carried out later, controlled at 400~550 DEG C, keeps the temperature 0.5~7h, then natural cooling
To room temperature to get finished product blaster fuse frame material.
Further, in step（1）In, used silico briquette, nickel block and copper billet carry out over cleaning and table before melting
Face removes oxide process.
Further, in step（2）In, the power frequency of the ultrasound field is 40~120KHz, and is cast in liquid alloy
Before, ingot mould need to be previously heated to 195~205 DEG C, and smoked benzene processing is carried out to the inner surface of ingot mould.
Further, in step（3）In, the rolling rate when hot rolling deformation is handled is 0.1~1s-1, finishing temperature
It is 740~800 DEG C.
Further, in step（4）In, the specific method of the grade and stage processing is：First control in heat-treatment furnace
Temperature is warming up to 750~800 DEG C with the heating rate of 50~120 DEG C/min and carries out 8~20min of heat preservation, and then with 5~10
DEG C/heating rate of min is warming up to 860~960 DEG C, carry out 10~30min of heat preservation.
Further, in step（5）In, the single side milling amount of the milling surface treatment is 0.3~0.5mm, and unilateral milling amount is 1.5
~5.0mm.
Beneficial effects of the present invention：
（1）A kind of Cu-Ni-Si alloy lead frames material provided by the invention be added on the basis of Cu-Ni-Si alloys phosphorus,
Silver.Via the effect of the microalloying between several components, the excellent lead frame of tensile property and conductivity is constituted
Frame material copper alloy.In alloy compositions, the addition of nickel can fully improve the elongation percentage of alloy and anti-softening temperature；Silver
The conductivity of alloy can be greatly improved by being added, while can also further increase the elongation percentage of alloy；The addition of phosphorus is conducive to close
The refining and degasification of gold.Since nickel and silicon addition can excessively inhibit the electric conductivity of alloy, so the alloy of the present invention specifically selects
The addition for selecting nickel and silicon is 4.0~9.0% and 1.0~1.5%.By limiting the ingredient and its each component of alloy in the present invention
Per distribution ratio makes each component comprehensive function, significantly improves the comprehensive performance of Cu-Ni-Si alloy materials, makes finished product Cu-Ni-Si
The tensile strength of alloy reaches 720~880MPa, and conductivity reaches 58~79%IACS, and elongation percentage is not less than 9%, and softening temperature is not
Less than 540 DEG C, it can preferably meet requirement of the circuit lead frame material to Cu-Ni-Si alloy properties.
（2）A kind of Cu-Ni-Si alloy lead frames material of the present invention, relationship is assembled in existing Cu-Ni-Si alloys
On the basis of, Ni and Si percentage compositions are substantially increased, the purpose is to utilize generated in-situ Ni in process of setting3The second of Si
Mutually strengthen, and δ-Ni are precipitated by the solid-state phase changes in heat treatment2Precipitation strength caused by Si phases realizes that alloy material is strong
The promotion of degree, simultaneously as the precipitation of Ni, Si atom, makes the conductivity of alloy also be improved.
（3）The present invention has abandoned the rolling and quenching technique that normative heat treatment method prepares copper alloy band in preparation process,
After hot rolling, using the cooling system of press quenching device make strip surface cover one layer flow under the laminar condition 1 ~
The water layer of 2mm, improves quenching rate, be effectively improved in conventional quenching means after strip coiling be sent to cooling bath cooling when, band
The inconsistent disadvantage of inside and outside temperature drop of volume.The process characteristic of solution treatment is that the first order selects lower conventional solid solution temperature,
Second level temperature is higher, and the first order is relatively low to the heating speed between the solid solubility temperature of the second level, so as to polynary compared with low melting point
Eutectic phase can dissolve, and improve solute atoms solid solubility, to obtain more fully precipitating reinforcing effect.In conjunction with cold rolling-when
Effect means, to prepare the Cu-Ni-Si alloys of tensile strength and conductivity in optimal proportion, to meet large-scale integrated
The performance requirement of circuit copper alloy.
Specific implementation mode
Only invention is further described in detail for following embodiments, but does not constitute any limitation of the invention.
A kind of high-performance Cu-Ni-Si alloy lead frames materials, consist of the following components in percentage by weight：1.0~
1.5% silicon, 4.0~9.0% nickel, 0.1~0.4% silver, 0.05~0.10% phosphorus, surplus are copper and inevitable impurity
Element.The weight ratio of the silicon and nickel is 1：（4~6）.
A kind of preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：The silicon, nickel, copper billet for meeting proportioning are first weighed, to its surface clean, removes oxide, then weigh suitable silver
Powder, phosphorus powder put into carry out melting in vacuum non-consumable electrode arc melting stove immediately, and it is 5 × 10 to be evacuated to pressure-2Pa,
It is 45kPa to be subsequently charged with pressure in argon gas to stove, and later, control in-furnace temperature is increased to 1220~1290 DEG C of progress meltings, obtains
It is spare to liquid alloy；
（2）Mold：The ingot mould for being placed on the ultrasound field that power frequency is 40~120KHz is previously heated to 195~205 DEG C, and to ingot
The inner surface of mould carries out smoked benzene processing, later, by step（1）Obtained liquid alloy, which pours, to be cast from ingot mould, cast temperature control
At 1100~1250 DEG C, ingot casting is made, it is spare；
（3）Hot rolling-press quenching：By step（2）Obtained ingot casting is heated to 840~920 DEG C, keeps the temperature 10~20min, carries out heat
Deformation process is rolled, rolling rate control is in 0.1~1s-1, hot rolling deformation amount 40~70%, finishing temperature is 740~800 DEG C, and
Line quenches, and obtains slab, spare；
（4）Solution treatment：By step（3）Slab be placed in heat-treatment furnace, rapid classification solution treatment is carried out, at grade and stage
The specific method of reason is：The temperature first controlled in heat-treatment furnace is warming up to 750~800 with the heating rate of 50~120 DEG C/min
DEG C 8~20min of heat preservation is carried out, and then 860~960 DEG C are warming up to the heating rate of 5~10 DEG C/min, carries out heat preservation 10
~30min then carries out water quenching；
（5）Milling face：By step（4）Alloy after solution treatment carries out milling face, and the single side milling amount of milling surface treatment is 0.3~0.5mm,
Unilateral milling amount is 1.5~5.0mm, to remove oxide on surface and heat treating fault；
（6）Cold rolling-timeliness：By step（5）Plank behind milling face carries out cold-rolling treatment, and deflection is 20~80%, cold rolling rate control
It is made as 0.1~1s-1.Ageing treatment is carried out later, and temperature is 400~550 DEG C, keeps the temperature 0.5~7h, room is air-cooled to after completion of prescription
Temperature is to get finished product blaster fuse frame material.
Embodiment 1
A kind of high-performance Cu-Ni-Si alloy lead frames materials, are made of, 1.0% silicon following components in percentage by weight,
4.0% nickel, 0.1% silver, 0.05% phosphorus, surplus are copper and inevitable impurity element.
The preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：First weigh mass percent be 1.0% silicon, 4.0% nickel, 94.85% copper billet its surface clean is gone
Except oxide, then 0.1% silver powder, 0.05% phosphorus powder are weighed, puts into vacuum non-consumable electrode arc melting stove carry out immediately
Melting, and it is 5 × 10 to be evacuated to pressure-2Pa, it is 45kPa to be subsequently charged with pressure in argon gas to stove, later, controls in-furnace temperature
1220 DEG C of progress meltings are increased to, liquid alloy is obtained, it is spare；
（2）Mold：The ingot mould for being placed on the ultrasound field that power frequency is 40KHz is previously heated to 195 DEG C, and to the inner surface of ingot mould
Smoked benzene processing is carried out, later, by step（1）Obtained liquid alloy, which pours, to be cast from ingot mould, and cast temperature is controlled at 1100 DEG C, system
Ingot casting is obtained, it is spare；
（3）Hot rolling-press quenching：By step（2）Obtained ingot casting is heated to 840 DEG C, keeps the temperature 10min, carries out at hot rolling deformation
Reason, rolling rate control is in 1s-1, hot rolling deformation amount 40%, and press quenching, finishing temperature are 740 DEG C, obtain slab, it is spare；
（4）Solution treatment：By step（3）Slab be placed in heat-treatment furnace, carry out rapid classification solution treatment, first control temperature
50 DEG C/min rises to 750 DEG C, keeps the temperature 8min, then be warming up to 860 DEG C with 5 DEG C/min, keeps the temperature 10min；Then carry out water quenching；
（5）Milling face：By step（4）Alloy after solution treatment carries out milling face, removes oxide on surface and heat treating fault, milling face
The single side milling amount of processing is 0.3mm, and unilateral milling amount is 1.5mm；
（6）Cold rolling-timeliness：By step（5）Plank behind milling face carries out cold-rolling treatment, deflection 20%, and cold rolling rate control is
1 s-1, ageing treatment is carried out later, and temperature is 400 DEG C, keeps the temperature 0.5h, room temperature is air-cooled to get finished product lead after completion of prescription
Frame material.
To Cu-Ni-Si alloy lead frames material manufactured in the present embodiment carry out tensile strength, conductivity, elongation percentage and
The measurement of the equal alloy properties of softening temperature, result are as shown in table 1 below.
Embodiment 2
A kind of high-performance Cu-Ni-Si alloy lead frames materials, are made of following components in percentage by weight, 1.0% silicon,
5.0% nickel, 0.2% silver, 0.06% phosphorus, surplus be copper and inevitable impurity element.
The preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：First weigh mass percent be 1.0% silicon, 5.0% nickel, 93.74% copper billet its surface clean is gone
Except oxide, then 0.2% silver powder, 0.06% phosphorus powder are weighed, puts into vacuum non-consumable electrode arc melting stove carry out immediately
Melting, and it is 5 × 10 to be evacuated to pressure-2Pa, it is 45kPa to be subsequently charged with pressure in argon gas to stove, later, controls in-furnace temperature
1230 DEG C of progress meltings are increased to, liquid alloy is obtained, it is spare；
（2）Mold：The ingot mould for being placed on the ultrasound field that power frequency is 50KHz is previously heated to 200 DEG C, and to the inner surface of ingot mould
Smoked benzene processing is carried out, later, by step（1）Obtained liquid alloy, which pours, to be cast from ingot mould, and cast temperature is controlled at 1120 DEG C, system
Ingot casting is obtained, it is spare；
（3）Hot rolling-press quenching：By step（2）Obtained ingot casting is heated to 850 DEG C, keeps the temperature 10min, carries out at hot rolling deformation
Reason, rolling rate control is in 0.9s-1, hot rolling deformation amount 50%, and press quenching, finishing temperature are 750 DEG C, obtain slab, it is standby
With；
（4）Solution treatment：By step（3）Slab be placed in heat-treatment furnace, carry out rapid classification solution treatment, control temperature 60
DEG C/min rises to 760 DEG C, 10min is kept the temperature, then 870 DEG C are warming up to 6 DEG C/min, keeps the temperature 12min；Then carry out water quenching；
（5）Milling face：By step（4）Alloy after solution treatment carries out milling face, removes oxide on surface and heat treating fault, milling face
The single side milling amount of processing is 0.3mm, and unilateral milling amount is 2.0mm；
（6）Cold rolling-timeliness：By step（5）Plank behind milling face carries out cold-rolling treatment, deflection 30%, and cold rolling rate control is
0.8s-1, ageing treatment is carried out later, and temperature is 450 DEG C, keeps the temperature 2h, room temperature is air-cooled to get finished product lead frame after completion of prescription
Frame material.
To Cu-Ni-Si alloy lead frames material manufactured in the present embodiment carry out tensile strength, conductivity, elongation percentage and
The measurement of the equal alloy properties of softening temperature, result are as shown in table 1 below.
Embodiment 3
A kind of high-performance Cu-Ni-Si alloy lead frames materials, are made of following components in percentage by weight, 1.2% silicon,
6.0% nickel, 0.2% silver, 0.07% phosphorus, surplus be copper and inevitable impurity element.
The preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：First weigh mass percent be 1.2% silicon, 6.0% nickel, 92.53% copper billet its surface clean is gone
Except oxide, then 0.2% silver powder, 0.07% phosphorus powder are weighed, puts into vacuum non-consumable electrode arc melting stove carry out immediately
Melting, and it is 5 × 10 to be evacuated to pressure-2Pa, it is 45kPa to be subsequently charged with pressure in argon gas to stove, later, controls in-furnace temperature
1240 DEG C of progress meltings are increased to, liquid alloy is obtained, it is spare；
（2）Mold：The ingot mould for being placed on the ultrasound field that power frequency is 60KHz is previously heated to 198 DEG C, and to the inner surface of ingot mould
Smoked benzene processing is carried out, later, by step（1）Obtained liquid alloy, which pours, to be cast from ingot mould, and cast temperature is controlled at 1140 DEG C, system
Ingot casting is obtained, it is spare；
（3）Hot rolling-press quenching：By step（2）Obtained ingot casting is heated to 860 DEG C, keeps the temperature 10min, carries out at hot rolling deformation
Reason, rolling rate control is in 0.8s-1, hot rolling deformation amount 50%, and press quenching, finishing temperature are 760 DEG C, obtain slab, it is standby
With；
（4）Solution treatment：By step（3）Slab be placed in heat-treatment furnace, carry out rapid classification solution treatment, control temperature 70
DEG C/min rises to 770 DEG C, 12min is kept the temperature, then 870 DEG C are warming up to 6 DEG C/min, keeps the temperature 12min；Then carry out water quenching；
（5）Milling face：By step（4）Alloy after solution treatment carries out milling face, removes oxide on surface and heat treating fault, milling face
The single side milling amount of processing is 0.4mm, and unilateral milling amount is 2.0mm；
（6）Cold rolling-timeliness：By step（5）Plank behind milling face carries out cold-rolling treatment, deflection 40%, and cold rolling rate control is
0.6s-1, ageing treatment is carried out later, and temperature is 450 DEG C, keeps the temperature 3h, room temperature is air-cooled to get finished product lead frame after completion of prescription
Frame material.
To Cu-Ni-Si alloy lead frames material manufactured in the present embodiment carry out tensile strength, conductivity, elongation percentage and
The measurement of the equal alloy properties of softening temperature, result are as shown in table 1 below.
Embodiment 4
A kind of high-performance Cu-Ni-Si alloy lead frames materials, are made of following components in percentage by weight, 1.3% silicon,
6.5% nickel, 0.3% silver, 0.08% phosphorus, surplus be copper and inevitable impurity element.
The preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：First weigh mass percent be 1.3% silicon, 6.5% nickel, 91.82% copper billet its surface clean is gone
Except oxide, then 0.3% silver powder, 0.08% phosphorus powder are weighed, puts into vacuum non-consumable electrode arc melting stove carry out immediately
Melting, and it is 5 × 10 to be evacuated to pressure-2Pa, it is 45kPa to be subsequently charged with pressure in argon gas to stove, later, controls in-furnace temperature
1250 DEG C of progress meltings are increased to, liquid alloy is obtained, it is spare；
（2）Mold：The ingot mould for being placed on the ultrasound field that power frequency is 70KHz is previously heated to 205 DEG C, and to the inner surface of ingot mould
Smoked benzene processing is carried out, later, by step（1）Obtained liquid alloy, which pours, to be cast from ingot mould, and cast temperature is controlled at 1150 DEG C, system
Ingot casting is obtained, it is spare；
（3）Hot rolling-press quenching：By step（2）Obtained ingot casting is heated to 870 DEG C, keeps the temperature 15min, carries out at hot rolling deformation
Reason, rolling rate control is in 0.7s-1, hot rolling deformation amount 60%, and press quenching, finishing temperature are 770 DEG C, obtain slab, it is standby
With；
（4）Solution treatment：By step（3）Slab be placed in heat-treatment furnace, carry out rapid classification solution treatment, control temperature 80
DEG C/min rises to 780 DEG C, 12min is kept the temperature, then 890 DEG C are warming up to 6 DEG C/min, keeps the temperature 15min；Then carry out water quenching；
（5）Milling face：By step（4）Alloy after solution treatment carries out milling face, removes oxide on surface and heat treating fault, milling face
The single side milling amount of processing is 0.4mm, and unilateral milling amount is 3.0mm；
（6）Cold rolling-timeliness：By step（5）Plank behind milling face carries out cold-rolling treatment, deflection 50%, and cold rolling rate control is
0.5s-1, ageing treatment is carried out later, and temperature is 470 DEG C, keeps the temperature 2h, room temperature is air-cooled to get finished product lead frame after completion of prescription
Frame material.
To Cu-Ni-Si alloy lead frames material manufactured in the present embodiment carry out tensile strength, conductivity, elongation percentage and
The measurement of the equal alloy properties of softening temperature, result are as shown in table 1 below.
Embodiment 5
A kind of high-performance Cu-Ni-Si alloy lead frames materials, are made of following components in percentage by weight, 1.4% silicon,
7.0% nickel, 0.4% silver, 0.09% phosphorus, surplus be copper and inevitable impurity element.
The preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：First weigh mass percent be 1.4% silicon, 7.0% nickel, 91.11% copper billet its surface clean is gone
Except oxide, then 0.4% silver powder, 0.09% phosphorus powder are weighed, puts into vacuum non-consumable electrode arc melting stove carry out immediately
Melting, and it is 5 × 10 to be evacuated to pressure-2Pa, it is 45kPa to be subsequently charged with pressure in argon gas to stove, later, controls in-furnace temperature
1260 DEG C of progress meltings are increased to, liquid alloy is obtained, it is spare；
（2）Mold：The ingot mould for being placed on the ultrasound field that power frequency is 80KHz is previously heated to 200 DEG C, and to the inner surface of ingot mould
Smoked benzene processing is carried out, later, by step（1）Obtained liquid alloy, which pours, to be cast from ingot mould, and cast temperature is controlled at 1180 DEG C, system
Ingot casting is obtained, it is spare；
（3）Hot rolling-press quenching：By step（2）Obtained ingot casting is heated to 880 DEG C, keeps the temperature 15min, carries out at hot rolling deformation
Reason, rolling rate control is in 0.5s-1, hot rolling deformation amount 60%, and press quenching, finishing temperature are 780 DEG C, obtain slab, it is standby
With；
（4）Solution treatment：By step（3）Slab be placed in heat-treatment furnace, carry out rapid classification solution treatment, control temperature 90
DEG C/min rises to 790 DEG C, 15min is kept the temperature, then 900 DEG C are warming up to 8 DEG C/min, keeps the temperature 20min；Then carry out water quenching；
（5）Milling face：By step（4）Alloy after solution treatment carries out milling face, removes oxide on surface and heat treating fault, milling face
The single side milling amount of processing is 0.4mm, and unilateral milling amount is 4.0mm；
（6）Cold rolling-timeliness：By step（5）Plank behind milling face carries out cold-rolling treatment, deflection 60%, and cold rolling rate control is
0.3s-1, ageing treatment is carried out later, and temperature is 500 DEG C, keeps the temperature 2h, room temperature is air-cooled to get finished product lead frame after completion of prescription
Frame material.
To Cu-Ni-Si alloy lead frames material manufactured in the present embodiment carry out tensile strength, conductivity, elongation percentage and
The measurement of the equal alloy properties of softening temperature, result are as shown in table 1 below.
Embodiment 6
A kind of high-performance Cu-Ni-Si alloy lead frames materials, are made of following components in percentage by weight, 1.5% silicon,
6.0% nickel, 0.4% silver, 0.1% phosphorus, surplus be copper and inevitable impurity element.
The preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：First weigh mass percent be 1.5% silicon, 6.0% nickel, 92.0% copper billet, to its surface clean, removal
Oxide, then 0.4% silver powder, 0.1% phosphorus powder are weighed, it puts into vacuum non-consumable electrode arc melting stove melted immediately
Refining, and it is 5 × 10 to be evacuated to pressure-2Pa, it is 45kPa to be subsequently charged with pressure in argon gas to stove, later, controls in-furnace temperature liter
Up to 1270 DEG C progress meltings, obtain liquid alloy, spare；
（2）Mold：The ingot mould for being placed on the ultrasound field that power frequency is 100KHz is previously heated to 205 DEG C, and to the interior table of ingot mould
Face carries out smoked benzene processing, later, by step（1）Obtained liquid alloy, which pours, to be cast from ingot mould, and cast temperature is controlled at 1200 DEG C,
Ingot casting is made, it is spare；
（3）Hot rolling-press quenching：By step（2）Obtained ingot casting is heated to 900 DEG C, keeps the temperature 15min, carries out at hot rolling deformation
Reason, rolling rate control is in 0.1s-1, hot rolling deformation amount 70%, and press quenching, finishing temperature are 790 DEG C, obtain slab, it is standby
With；
（4）Solution treatment：By step（3）Slab be placed in heat-treatment furnace, carry out rapid classification solution treatment, control temperature
100 DEG C/min rises to 790 DEG C, keeps the temperature 20min, then be warming up to 920 DEG C with 8 DEG C/min, keeps the temperature 25min；Then carry out water quenching；
（5）Milling face：By step（4）Alloy after solution treatment carries out milling face, removes oxide on surface and heat treating fault, milling face
The single side milling amount of processing is 0.5mm, and unilateral milling amount is 5.0mm；
（6）Cold rolling-timeliness：By step（5）Plank behind milling face carries out cold-rolling treatment, deflection 70%, and cold rolling rate control is
0.2s-1, ageing treatment is carried out later, and temperature is 520 DEG C, keeps the temperature 2h, room temperature is air-cooled to get finished product lead frame after completion of prescription
Frame material.
To Cu-Ni-Si alloy lead frames material manufactured in the present embodiment carry out tensile strength, conductivity, elongation percentage and
The measurement of the equal alloy properties of softening temperature, result are as shown in table 1 below.
Embodiment 7
A kind of high-performance Cu-Ni-Si alloy lead frames materials, are made of following components in percentage by weight, 1.5% silicon,
7.5% nickel, 0.4% silver, 0.1% phosphorus, surplus be copper and inevitable impurity element.
The preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：First weigh mass percent be 1.5% silicon, 7.5% nickel, 90.5% copper billet, to its surface clean, removal
Oxide, then 0.4% silver powder, 0.1% phosphorus powder are weighed, it puts into vacuum non-consumable electrode arc melting stove melted immediately
Refining, and it is 5 × 10 to be evacuated to pressure-2Pa, it is 45kPa to be subsequently charged with pressure in argon gas to stove, later, controls in-furnace temperature liter
Up to 1280 DEG C progress meltings, obtain liquid alloy, spare；
（2）Mold：The ingot mould for being placed on the ultrasound field that power frequency is 100KHz is previously heated to 200 DEG C, and to the interior table of ingot mould
Face carries out smoked benzene processing, later, by step（1）Obtained liquid alloy, which pours, to be cast from ingot mould, and cast temperature is controlled at 1250 DEG C,
Ingot casting is made, it is spare；
（3）Hot rolling-press quenching：By step（2）Obtained ingot casting is heated to 910 DEG C, keeps the temperature 20min, carries out at hot rolling deformation
Reason, rolling rate control is in 0.1s-1, hot rolling deformation amount 70%, and press quenching, finishing temperature are 790 DEG C, obtain slab, it is standby
With；
（4）Solution treatment：By step（3）Slab be placed in heat-treatment furnace, carry out rapid classification solution treatment, control temperature
100 DEG C/min rises to 800 DEG C, keeps the temperature 20min, then be warming up to 960 DEG C with 10 DEG C/min, keeps the temperature 30min；Then carry out water quenching；
（5）Milling face：By step（4）Alloy after solution treatment carries out milling face, removes oxide on surface and heat treating fault, milling face
The single side milling amount of processing is 0.5mm, and unilateral milling amount is 5.0mm；
（6）Cold rolling-timeliness：By step（5）Plank behind milling face carries out cold-rolling treatment, deflection 80%, and cold rolling rate control is
0.1s-1, ageing treatment is carried out later, and temperature is 550 DEG C, keeps the temperature 4h, room temperature is air-cooled to get finished product lead frame after completion of prescription
Frame material.
To Cu-Ni-Si alloy lead frames material manufactured in the present embodiment carry out tensile strength, conductivity, elongation percentage and
The measurement of the equal alloy properties of softening temperature, result are as shown in table 1 below.
Embodiment 8
A kind of high-performance Cu-Ni-Si alloy lead frames materials, are made of following components in percentage by weight, 1.5% silicon,
9.0% nickel, 0.4% silver, 0.1% phosphorus, surplus be copper and inevitable impurity element.
The preparation method of high-performance Cu-Ni-Si alloy lead frames materials, includes the following steps：
（1）Melting：First weigh mass percent be 1.5% silicon, 9.0% nickel, 89.0% copper billet, to its surface clean, removal
Oxide, then 0.4% silver powder, 0.1% phosphorus powder are weighed, it puts into vacuum non-consumable electrode arc melting stove melted immediately
Refining, and it is 5 × 10 to be evacuated to pressure-2Pa, it is 45kPa to be subsequently charged with pressure in argon gas to stove, later, controls in-furnace temperature liter
Up to 1290 DEG C progress meltings, obtain liquid alloy, spare；
（2）Mold：The ingot mould for being placed on the ultrasound field that power frequency is 120KHz is previously heated to 205 DEG C, and to the interior table of ingot mould
Face carries out smoked benzene processing, later, by step（1）Obtained liquid alloy, which pours, to be cast from ingot mould, and cast temperature is controlled at 1250 DEG C,
Ingot casting is made, it is spare；
（3）Hot rolling-press quenching：By step（2）Obtained ingot casting is heated to 920 DEG C, keeps the temperature 20min, carries out at hot rolling deformation
Reason, rolling rate control is in 0.1s-1, hot rolling deformation amount 70%, and press quenching, finishing temperature are 800 DEG C, obtain slab, it is standby
With；
（4）Solution treatment：By step（3）Slab be placed in heat-treatment furnace, carry out rapid classification solution treatment, control temperature
120 DEG C/min rises to 800 DEG C, keeps the temperature 20min, then be warming up to 960 DEG C with 10 DEG C/min, keeps the temperature 30min；Then carry out water quenching；
（5）Milling face：By step（4）Alloy after solution treatment carries out milling face, removes oxide on surface and heat treating fault, milling face
The single side milling amount of processing is 0.5mm, and unilateral milling amount is 5.0mm；
（6）Cold rolling-timeliness：By step（5）Plank behind milling face carries out cold-rolling treatment, deflection 80%, and cold rolling rate control is
0.1s-1, ageing treatment is carried out later, and temperature is 550 DEG C, keeps the temperature 6h, room temperature is air-cooled to get finished product lead frame after completion of prescription
Frame material.
To Cu-Ni-Si alloy lead frames material manufactured in the present embodiment carry out tensile strength, conductivity, elongation percentage and
The measurement of the equal alloy properties of softening temperature, result are as shown in table 1 below.
1 primary alloy constituent of the present invention of table and performance
Claims (8)
1. a kind of high-performance Cu-Ni-Si alloy lead frames materials, which is characterized in that including following components in percentage by weight：
4.0~9.0% nickel, 1.0~1.5% silicon, 0.1~0.4% silver, 0.05~0.10% phosphorus, surplus is for copper and unavoidably
Impurity element.
2. according to a kind of high-performance Cu-Ni-Si alloy lead frames materials described in claim 1, it is characterised in that：It is described
The weight ratio of silicon and nickel is 1：（4~6）.
3. a kind of preparation method of high-performance Cu-Ni-Si alloy lead frames materials according to claim 1 or 2, special
Sign is, includes the following steps：
（1）Melting：It is matched according to above-mentioned weight percent, weighs silico briquette, nickel block, copper billet, silver powder and phosphorus powder respectively, put into vacuum
Melting is carried out in non-consumable electrode arc melting stove, it is 5 × 10 to be evacuated to pressure in stove-2Pa is then charged in argon gas to stove
Pressure is 45kPa, and control in-furnace temperature is increased to 1220~1290 DEG C of progress meltings, obtains liquid alloy, spare；
（2）Mold：By step（1）Liquid alloy obtained is poured to cast from and is placed in the ingot mould of ultrasound field in advance, and control pours temperature
Degree is 1100~1250 DEG C, and ingot casting is made, spare；
（3）Hot rolling-press quenching：By step（2）Ingot casting obtained is heated to 840~920 DEG C, keeps the temperature 10~20min, then into
The processing of row hot rolling deformation, control hot rolling deformation amount is 40~70%, and press quenching, and slab is made, spare；
（4）Solution treatment：By step（3）Slab obtained is placed in heat-treatment furnace, is carried out grade and stage processing, is then carried out water
It quenches；
（5）Milling face：To step（4）Slab after water quenching carries out milling surface treatment, is lacked with removing alloy surface oxide and heat treatment
It falls into；
（6）Cold rolling-timeliness：To step（5）Slab after milling surface treatment carries out cold-rolling treatment, and control deflection is 20~80%, cold
It is 0.1 s to roll rate-1, ageing treatment is carried out later, controlled at 400~550 DEG C, keeps the temperature 0.5~7h, then natural cooling
To room temperature to get finished product blaster fuse frame material.
4. a kind of preparation method of high-performance Cu-Ni-Si alloy lead frames materials according to claim 3, feature
It is：In step（1）In, used silico briquette, nickel block and copper billet carry out over cleaning and surface remove oxide before melting
Processing.
5. a kind of preparation method of high-performance Cu-Ni-Si alloy lead frames materials according to claim 3, feature
It is：In step（2）In, the power frequency of the ultrasound field is 40~120KHz, and before liquid alloy casting, need to be pre- by ingot mould
195~205 DEG C are first heated to, and smoked benzene processing is carried out to the inner surface of ingot mould.
6. a kind of preparation method of high-performance Cu-Ni-Si alloy lead frames materials according to claim 3, feature
It is：In step（3）In, the rolling rate when hot rolling deformation is handled is 0.1~1s-1, finishing temperature is 740~800 DEG C.
7. a kind of preparation method of high-performance Cu-Ni-Si alloy lead frames materials according to claim 3, feature
It is, in step（4）In, the specific method of the grade and stage processing is：The temperature in heat-treatment furnace is first controlled with 50~120
DEG C/heating rate of min is warming up to 750~800 DEG C and carries out 8~20min of heat preservation, and then with the heating speed of 5~10 DEG C/min
Rate is warming up to 860~960 DEG C, carries out 10~30min of heat preservation.
8. a kind of preparation method of high-performance Cu-Ni-Si alloy lead frames materials according to claim 3, feature
It is：In step（5）In, the single side milling amount of the milling surface treatment is 0.3~0.5mm, and unilateral milling amount is 1.5~5.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148287.0A CN108330320B (en) | 2018-02-13 | 2018-02-13 | A kind of high-performance Cu-Ni-Si alloy lead frames material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148287.0A CN108330320B (en) | 2018-02-13 | 2018-02-13 | A kind of high-performance Cu-Ni-Si alloy lead frames material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108330320A true CN108330320A (en) | 2018-07-27 |
| CN108330320B CN108330320B (en) | 2019-09-06 |
Family
ID=62929632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810148287.0A Expired - Fee Related CN108330320B (en) | 2018-02-13 | 2018-02-13 | A kind of high-performance Cu-Ni-Si alloy lead frames material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108330320B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215439A (en) * | 2021-04-16 | 2021-08-06 | 安徽绿能技术研究院有限公司 | High-strength copper alloy plate and production process thereof |
| CN114606409A (en) * | 2022-03-31 | 2022-06-10 | 江苏恒盈电子科技有限公司 | Heat-resistant semiconductor lead frame for signal amplifier and preparation method thereof |
| CN114959322A (en) * | 2022-04-25 | 2022-08-30 | 西北工业大学 | Method for preparing Cu-Ni-Si alloy by utilizing orthogonal three-dimensional ultrasound |
| CN115896538A (en) * | 2022-10-27 | 2023-04-04 | 中色奥博特铜铝业有限公司 | High-performance copper-nickel-silicon-chromium alloy plate and processing method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046843A (en) * | 2014-06-30 | 2014-09-17 | 中色奥博特铜铝业有限公司 | Copper-nickel-silicon alloy material containing rare-earth cerium, lead frame strip and preparation method thereof |
-
2018
- 2018-02-13 CN CN201810148287.0A patent/CN108330320B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046843A (en) * | 2014-06-30 | 2014-09-17 | 中色奥博特铜铝业有限公司 | Copper-nickel-silicon alloy material containing rare-earth cerium, lead frame strip and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113215439A (en) * | 2021-04-16 | 2021-08-06 | 安徽绿能技术研究院有限公司 | High-strength copper alloy plate and production process thereof |
| CN114606409A (en) * | 2022-03-31 | 2022-06-10 | 江苏恒盈电子科技有限公司 | Heat-resistant semiconductor lead frame for signal amplifier and preparation method thereof |
| CN114606409B (en) * | 2022-03-31 | 2023-06-23 | 江苏恒盈电子科技有限公司 | Heat-resistant semiconductor lead frame for signal amplifier and preparation method thereof |
| CN114959322A (en) * | 2022-04-25 | 2022-08-30 | 西北工业大学 | Method for preparing Cu-Ni-Si alloy by utilizing orthogonal three-dimensional ultrasound |
| CN114959322B (en) * | 2022-04-25 | 2022-11-25 | 西北工业大学 | Method for preparing Cu-Ni-Si alloy by utilizing orthogonal three-dimensional ultrasound |
| CN115896538A (en) * | 2022-10-27 | 2023-04-04 | 中色奥博特铜铝业有限公司 | High-performance copper-nickel-silicon-chromium alloy plate and processing method and application thereof |
| CN115896538B (en) * | 2022-10-27 | 2024-04-26 | 中色正锐(山东)铜业有限公司 | High-performance copper-nickel-silicon-chromium alloy plate and processing method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108330320B (en) | 2019-09-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108330320B (en) | A kind of high-performance Cu-Ni-Si alloy lead frames material and preparation method thereof | |
| CN110616342B (en) | Short-process continuous preparation method of high-performance copper-chromium alloy wire | |
| CN101956103B (en) | High strength alloy round aluminium rod and production method thereof | |
| CN104975211B (en) | Strength aluminum alloy conductive monofilament in a kind of high conductivity heat treatment type | |
| CN104178660B (en) | A kind of high intensity Cu-Ni-Si alloy and preparation method thereof | |
| CN100425717C (en) | Copper alloy for lead-wire frame and its production | |
| CN107988512A (en) | A kind of high strength and high flexibility cupro-nickel silicon cobalt system lead frame processing technology | |
| CN101265536A (en) | High-strength high-conductivity copper alloy and preparation method thereof | |
| CN106756202A (en) | A kind of blaster fuse frame material complicated pluralism Cu alloy material and preparation method thereof | |
| CN103243231B (en) | High-strength high-conductivity copper base alloy and preparation method thereof | |
| CN107653386A (en) | A kind of preparation method of Cu Cr Nb alloys | |
| CN102610294B (en) | Manufacturing method of energy-saving strong-strength aluminum alloy wire | |
| CN108220662A (en) | A kind of carbon microalloy Cu-Fe based materials and preparation method | |
| CN104561642B (en) | Ultrathin high-conductivity Cr-Zr-Cu wire and preparation method thereof | |
| CN111363953B (en) | High-strength medium-conductivity copper-iron-phosphorus-zinc-magnesium alloy foil and processing method thereof | |
| CN106282646A (en) | A kind of processing method of quasiconductor welding copper cash | |
| CN108559877A (en) | The processing technology of 6 line aluminium alloy cut deals of charging pile conductive pieces | |
| CN111304486A (en) | Copper-iron-phosphorus-zinc-tin alloy foil and production process thereof | |
| CN106756205B (en) | A kind of copper alloy material for lead frame and preparation method thereof | |
| CN102747238A (en) | Production method of microalloyed tin bronze alloy | |
| CN107159739A (en) | A kind of preparation method of Cu Ni Si Mg alloy strip steel rolled stocks | |
| CN105112715A (en) | CuZnNiSi alloy, preparation method thereof and method for preparing strips using the same | |
| CN102392205A (en) | Method for preparing precision copper part | |
| CN102690971B (en) | High-strength copper alloy strip and preparation method thereof | |
| CN101717875A (en) | Chromium bronze alloy material 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190906 Termination date: 20210213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |