CN108588477A - A kind of high-strength conductive elasticity Cu-Ti-Ni-Y alloys and preparation method thereof - Google Patents
A kind of high-strength conductive elasticity Cu-Ti-Ni-Y alloys and preparation method thereof Download PDFInfo
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C9/00—Alloys based on copper
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- 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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- 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
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Abstract
It is composed of the following components by mass percentage the invention discloses a kind of high-strength conductive elasticity Cu Ti Ni y alloys：Cu 92.55 95.5%, Y 0.01 0.15%, Ti 2.0 3.5%, Ni 2.5 3.8%, the sum of the above components mass percent are 100%.The invention also discloses a kind of preparation method of high-strength conductive elasticity Cu Ti Ni y alloys, concrete operation step is as follows：Copper billet, titanium sponge, nickel block and yttrium block are subjected to melting, solution treatment, ageing treatment.Compared with the preparation of existing high-strength conductive elastic copper alloy, preparation method simple possible of the invention, the Cu Ti Ni y alloy excellent combination properties of acquisition.The alloy rigidity, conductivity and elasticity modulus are respectively 260~280HV, 25~30%IACS and 140~160GPa.
Description
Technical field
The invention belongs to technical field of metal material, and in particular to a kind of high-strength conductive elasticity Cu-Ti-Ni-Y alloys,
Further relate to a kind of preparation method of high-strength conductive elasticity Cu-Ti-Ni-Y alloys.
Background technology
High-strength conducting elasticity acid bronze alloy is indispensable material in precision instrumentation and precision machinery manufacture, extensively
Applied to fields such as automobile, mobile phone, electronics, electric power.As electronic product is to miniaturization, multi-functional, high reliability, environmental protection and length
The development in service life direction also proposed higher performance requirement to electrically conductive elastic copper alloy.It is bent with good processing performance, height
It takes intensity, reliable elastic property and high elastic limit etc., high-strength conducting elastic copper alloy and is widely used in electric connector
In the manufacture of connector.Copper alloy for socket connectors mainly have brass, tin-phosphor bronze, packfong, iron phosphor bronze etc. at present.By performance
Can be divided into high-strength alloy, in strong alloy, inexpensive brass.Wherein representative materials be beryllium-bronze because its electric conductivity, intensity,
The excellent combination properties such as wearability, corrosion resistance, but beryllium-bronze will produce the nitrous oxide containing beryllium in process of production, harm
Health pollutes environment, is a kind of non-environmental protection type alloy, and the production technology of beryllium-bronze is more complex, of high cost, while beryllium
Stability when bronze works at relatively high temperatures is poor.Recent domestic constantly seeks the novel environment friendly of alternative beryllium-bronze
Copper alloy, therefore develop a kind of mechanical property, electric conductivity, elasticity and the excellent alloy of high-temperature behavior and have important engineering
Meaning and practical value.
Invention content
The main purpose of the present invention is to provide a kind of simple production process, of low cost, environmentally protective, intensity is high, leads
Electrical and good Cu-Ti-Ni-Y alloys of elasticity and preparation method thereof, it is poor to solve Cu-Ti alloy conductives rate in the prior art
The problem of.It is a further object to provide a kind of preparation methods of electrically conductive elastic Cu-Ti-Ni-Y alloys.
The first technical solution of the present invention is a kind of high-strength conductive elasticity Cu-Ti-Ni-Y alloys, by matter
It is composed of the following components to measure percentage：Cu92.55-95.49%, Y0.01-0.15%, Ti2.0-3.5%, Ni2.5-3.8%,
The sum of the above components mass percent is 100%.
Second of technical solution of the present invention is a kind of preparation of high-strength conductive elasticity Cu-Ti-Ni-Y alloys
Method is as follows：
Step 1, following material is weighed by mass percentage：Copper billet 92.55-95.49%, yttrium block 0.01-0.15%, sponge
Titanium 2.0-3.5% and nickel block 2.5-3.8%, the sum of the above components mass percent are 100%；
Step 2, copper billet, titanium sponge, nickel block and yttrium block are put into Magnesia crucible, are melted in vacuum induction melting furnace
Refining is put into water jacketed copper crucible after the completion of melting and pours into a mould, obtains alloy cast ingot；
Step 3, alloy cast ingot is put into open-type vacuum-atmosphere tube type stove, is passed through protective gas, carried out at solid solution
Reason then carries out hardening processing, obtains alloy cast ingot after solution treatment；
Step 4, alloy cast ingot after solution treatment is placed in again in open-type vacuum-atmosphere tube type stove, is passed through protection gas
Body keeps the temperature 1-8 hours, with stove cooled to room temperature after heat preservation after furnace temperature is raised to 380-580 DEG C.
The features of the present invention also characterized in that
The melting vacuum degree of step 2 is not less than 10-3Pa。
The solid solution temperature of step 3 is 780-980 DEG C, keeps the temperature 3-6 hours.
The hardening water temperature of step 3 is 20-30 DEG C.
The copper billet purity of step 1 is not less than 99.9%, and nickel block purity is not less than 99.9%, and yttrium block purity is not less than
99.9%, titanium sponge purity is not less than 99.9%.
The protective gas of step 3 and step 4 is argon gas.
The beneficial effects of the invention are as follows：A kind of high-strength conductive elasticity Cu-Ti-Ni-Y alloys of the present invention, Ni elements
The Ti atoms that being introduced into can make to be dissolved in matrix form intermetallic compound with Ni atoms, to improve alloy rigidity, improve and close
The introducing of golden conductivity, Y can play the role of crystal grain thinning, be vented slagging-off, and Y and Cu can form various metals between change
Object is closed, alloy substrate is further enhanced.Pass through the method for simple thermal treatment, you can obtain high-strength conducting sprung copper of good performance
Alloy.
Description of the drawings
Fig. 1 is a kind of preparation method flow chart of high-strength conductive elasticity Cu-Ti-Ni-Y alloys of the present invention；
Fig. 2 is a kind of high-strength conductive elasticity Cu-Ti-Ni-Y alloy microscopic structure photos of the present invention.
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present invention provides a kind of high-strength conductive elasticity Cu-Ti-Ni-Y alloys, by mass percentage by following components group
At：Cu 92.55-95.49%, Y 0.01-0.15%, Ti 2.0-3.5%, Ni 2.5-3.8%, the above components quality hundred
It is 100% to divide the sum of ratio.
A kind of preparation flow of high-strength conductive elasticity Cu-Ti-Ni-Y alloys is as shown in Figure 1, include following operating procedure：
Step 1, following material is weighed by mass percentage：Copper billet 92.55-95.49%, pure of the purity not less than 99.9%
Yttrium block 0.01-0.15% of the degree not less than 99.9%, titanium sponge 2.0-3.5% of the purity not less than 99.9% and purity are not less than
99.9% nickel block 2.5-3.8%, the sum of the above components mass percent are 100%；
Step 2, the copper billet, titanium sponge, nickel block and yttrium block are put into Magnesia crucible, in vacuum induction melting furnace into
Row melting, vacuum degree are not less than 10-3Pa is put into water jacketed copper crucible after the completion of melting and pours into a mould, obtains alloy cast ingot；
Step 3, the alloy cast ingot is put into open-type vacuum-atmosphere tube type stove, is passed through protective gas argon gas, carried out
Solution treatment, solid solution temperature are 780-980 DEG C, keep the temperature 3-6 hours, then carry out Water Quenching, and water quenching water temperature is 20-30
DEG C, obtain alloy cast ingot after solution treatment；
Step 4, alloy cast ingot after the solution treatment is placed in again in open-type vacuum-atmosphere tube type stove, is passed through guarantor
Gases argon is protected, after furnace temperature is raised to 380-580 DEG C, keeps the temperature 1-8 hours, with stove cooled to room temperature after heat preservation, i.e.,
Obtain high-strength conductive elasticity Cu-Ti-Ni-Y alloys.
Embodiment 1
Step 1, following material is weighed：Copper billet 9.255kg of the purity not less than 99.9%, purity are not less than 99.9% yttrium
The titanium sponge 0.35kg of block 0.015kg, purity not less than 99.9% and purity are not less than 99.9% nickel block 0.38kg；
Step 2, the copper billet, titanium sponge, nickel block and yttrium block are put into Magnesia crucible, in vacuum induction melting furnace into
Row melting, vacuum degree are not less than 10-3Pa is put into water jacketed copper crucible after the completion of melting and pours into a mould, obtains alloy cast ingot；
Step 3, the alloy cast ingot is put into open-type vacuum-atmosphere tube type stove, is passed through protective gas argon gas, carried out
Solution treatment, solid solution temperature are 780-980 DEG C, keep the temperature 3-6 hours, then carry out Water Quenching, and water quenching water temperature is 20-30
DEG C, obtain alloy cast ingot after solution treatment；
Step 4, alloy cast ingot after the solution treatment is placed in again in open-type vacuum-atmosphere tube type stove, is passed through guarantor
Gases argon is protected, after furnace temperature is raised to 380-580 DEG C, keeps the temperature 1-8 hours, with stove cooled to room temperature after heat preservation, i.e.,
Obtain high-strength conductive elasticity Cu-Ti-Ni-Y alloys.
Embodiment 2
Step 1, following material is weighed：Copper billet 9.549kg of the purity not less than 99.9%, purity are not less than 99.9% yttrium
The titanium sponge 0.2kg of block 0.001kg, purity not less than 99.9% and purity are not less than 99.9% nickel block 0.25kg；
Step 2, the copper billet, titanium sponge, nickel block and yttrium block are put into Magnesia crucible, in vacuum induction melting furnace into
Row melting, vacuum degree are not less than 10-3Pa is put into water jacketed copper crucible after the completion of melting and pours into a mould, obtains alloy cast ingot；
Step 3, the alloy cast ingot is put into open-type vacuum-atmosphere tube type stove, is passed through protective gas argon gas, carried out
Solution treatment, solid solution temperature are 780-980 DEG C, keep the temperature 3-6 hours, then carry out Water Quenching, and water quenching water temperature is 20-30
DEG C, obtain alloy cast ingot after solution treatment；
Step 4, alloy cast ingot after the solution treatment is placed in again in open-type vacuum-atmosphere tube type stove, is passed through guarantor
Gases argon is protected, after furnace temperature is raised to 380-580 DEG C, keeps the temperature 1-8 hours, with stove cooled to room temperature after heat preservation, i.e.,
Obtain high-strength conductive elasticity Cu-Ti-Ni-Y alloys.
Embodiment 3
Step 1, following material is weighed：Copper billet 9.3kg of the purity not less than 99.9%, purity are not less than 99.9% yttrium block
The titanium sponge 0.3kg of 0.1kg, purity not less than 99.9% and purity are not less than 99.9% nickel block 0.3kg；
Step 2, the copper billet, titanium sponge, nickel block and yttrium block are put into Magnesia crucible, in vacuum induction melting furnace into
Row melting, vacuum degree are not less than 10-3Pa is put into water jacketed copper crucible after the completion of melting and pours into a mould, obtains alloy cast ingot；
Step 3, the alloy cast ingot is put into open-type vacuum-atmosphere tube type stove, is passed through protective gas argon gas, carried out
Isothermal holding, holding temperature are 780-980 DEG C, keep the temperature 3-6 hours, then carry out hardening processing, and hardening water temperature is 20-30 DEG C,
Obtain alloy cast ingot after solution treatment；
Step 4, alloy cast ingot after the solution treatment is placed in again in open-type vacuum-atmosphere tube type stove, is passed through guarantor
Gases argon is protected, after furnace temperature is raised to 380-580 DEG C, keeps the temperature 1-8 hours, with stove cooled to room temperature after heat preservation, i.e.,
Obtain high-strength conductive elasticity Cu-Ti-Ni-Y alloys.
Embodiment 4
Step 1, following material is weighed：Copper billet 15.56kg of the purity not less than 99.9%, purity are not less than 99.9% yttrium
The titanium sponge 0.56kg of block 0.015kg, purity not less than 99.9% and purity are not less than 99.9% nickel block 0.49kg；
Step 2, the copper billet, titanium sponge, nickel block and yttrium block are put into Magnesia crucible, in vacuum induction melting furnace into
Row melting, vacuum degree are not less than 10-3Pa is put into water jacketed copper crucible after the completion of melting and pours into a mould, obtains alloy cast ingot；
Step 3, the alloy cast ingot is put into open-type vacuum-atmosphere tube type stove, is passed through protective gas argon gas, carried out
Solution treatment, solid solution temperature are 780-980 DEG C, keep the temperature 3-6 hours, then carry out Water Quenching, and water quenching water temperature is 20-30
DEG C, obtain alloy cast ingot after solution treatment；
Step 4, alloy cast ingot after the solution treatment is placed in again in open-type vacuum-atmosphere tube type stove, is passed through guarantor
Gases argon is protected, after furnace temperature is raised to 380-580 DEG C, keeps the temperature 1-8 hours, with stove cooled to room temperature after heat preservation, i.e.,
Obtain high-strength conductive elasticity Cu-Ti-Ni-Y alloys.
Embodiment 5
Step 1, following material is weighed：Copper billet 915.38kg of the purity not less than 99.9%, purity are not less than 99.9%
The titanium sponge 0.54kg of yttrium block 0.017kg, purity not less than 99.9% and purity are not less than 99.9% nickel block 0.51kg；
Step 2, the copper billet, titanium sponge, nickel block and yttrium block are put into Magnesia crucible, in vacuum induction melting furnace into
Row melting, vacuum degree are not less than 10-3Pa is put into water jacketed copper crucible after the completion of melting and pours into a mould, obtains alloy cast ingot；
Step 3, the alloy cast ingot is put into open-type vacuum-atmosphere tube type stove, is passed through protective gas argon gas, carried out
Solution treatment, solid solution temperature are 780-980 DEG C, keep the temperature 3-6 hours, then carry out Water Quenching, and water quenching water temperature is 20-30
DEG C, obtain alloy cast ingot after solution treatment；
Step 4, alloy cast ingot after the solution treatment is placed in again in open-type vacuum-atmosphere tube type stove, is passed through guarantor
Gases argon is protected, after furnace temperature is raised to 380-580 DEG C, keeps the temperature 1-8 hours, with stove cooled to room temperature after heat preservation, i.e.,
Obtain high-strength conductive elasticity Cu-Ti-Ni-Y alloys.
Embodiment 6
Step 1, following material is weighed：Copper billet 14.96kg of the purity not less than 99.9%, purity are not less than 99.9% yttrium
The titanium sponge 0.51kg of block 0.011kg, purity not less than 99.9% and purity are not less than 99.9% nickel block 0.53kg；
Step 2, the copper billet, titanium sponge, nickel block and yttrium block are put into Magnesia crucible, in vacuum induction melting furnace into
Row melting, vacuum degree are not less than 10-3Pa is put into water jacketed copper crucible after the completion of melting and pours into a mould, obtains alloy cast ingot；
Step 3, the alloy cast ingot is put into open-type vacuum-atmosphere tube type stove, is passed through protective gas argon gas, carried out
Solution treatment, solid solution temperature are 780-980 DEG C, keep the temperature 3-6 hours, then carry out Water Quenching, and water quenching water temperature is 20-30
DEG C, obtain alloy cast ingot after solution treatment；
Step 4, alloy cast ingot after the solution treatment is placed in again in open-type vacuum-atmosphere tube type stove, is passed through guarantor
Gases argon is protected, after furnace temperature is raised to 380-580 DEG C, keeps the temperature 1-8 hours, with stove cooled to room temperature after heat preservation, i.e.,
Obtain high-strength conductive elasticity Cu-Ti-Ni-Y alloys.
Fig. 2 is Cu-Ti-Ni-Y alloy microscopic structure photos, it can be seen that alloy grain size is smaller, and intra-die has
Intensive graininess precipitated phase occurs, in crystal boundary and the transgranular precipitated phase for being dispersed with spheroidal.
1 embodiment of table is compared with Cu-Ti alloy property parameters
By embodiment 1 to embodiment 3, it is apparent that Cu-Ti-Ni-Y alloys and Cu-Ti prepared by the method for the present invention
Alloy compares, and hardness is in a slight decrease, but elasticity modulus is significantly increased with conductivity, Cu-Ti-Ni-Y prepared by embodiment 1
17.13% and 86.06% has been respectively increased in alloy elastic modulus and conductivity.Cu-Ti-Ni-Y alloy bullets prepared by embodiment 2
9.59% and 61.28% has been respectively increased in property modulus and conductivity.Embodiment 3 prepare Cu-Ti-Ni-Y alloy elastics modulus and
10.48% and 68.76% has been respectively increased in conductivity.
Claims (7)
1. a kind of high-strength conductive elasticity Cu-Ti-Ni-Y alloys, which is characterized in that composed of the following components by mass percentage：
Cu 92.55-95.5%, Y 0.01-0.15%, Ti 2.0-3.5%, Ni 2.5-3.8%, the above components mass percent
The sum of be 100%.
2. a kind of preparation method of high-strength conductive elasticity Cu-Ti-Ni-Y alloys, which is characterized in that concrete operation step is as follows：
Step 1, following material is weighed by mass percentage：Copper billet 92.55-95.49%, yttrium block 0.01-0.15%, titanium sponge
2.0-3.5% and nickel block 2.5-3.8%, the sum of the above components mass percent are 100%；
Step 2, the copper billet, titanium sponge, nickel block and yttrium block are put into Magnesia crucible, are melted in vacuum induction melting furnace
Refining is put into water jacketed copper crucible after the completion of melting and pours into a mould, obtains alloy cast ingot；
Step 3, the alloy cast ingot is put into open-type vacuum-atmosphere tube type stove, is passed through protective gas, carried out at solid solution
Reason, then carries out Water Quenching, obtains alloy cast ingot after solution treatment；
Step 4, alloy cast ingot after the solution treatment is placed in again in open-type vacuum-atmosphere tube type stove, is passed through protection gas
Body keeps the temperature 1-8 hours after furnace temperature is raised to 380-580 DEG C, with stove cooled to room temperature after heat preservation, obtains high-strength lead
Electric elasticity Cu-Ti-Ni-Y alloys.
3. a kind of preparation method of high-strength conductive elasticity Cu-Ti-Ni-Y alloys according to claim 2, feature exist
In the melting vacuum degree described in step 2 is not less than 10-3Pa。
4. a kind of preparation method of high-strength conductive elasticity Cu-Ti-Ni-Y alloys according to claim 2, feature exist
In the solid solution temperature described in step 3 is 780-980 DEG C, keeps the temperature 3-6 hours.
5. a kind of preparation method of high-strength conductive elasticity Cu-Ti-Ni-Y alloys according to claim 2, feature exist
In the water quenching water temperature described in step 3 is 20-30 DEG C.
6. a kind of preparation method of high-strength conductive elasticity Cu-Ti-Ni-Y alloys according to claim 2, feature exist
In, the copper billet purity described in step 1 is not less than 99.9%, and nickel block purity is not less than 99.9%, and yttrium block purity is not less than 99.9%,
Titanium sponge purity is not less than 99.9%.
7. a kind of preparation method of high-strength conductive elasticity Cu-Ti-Ni-Y alloys according to claim 2, feature exist
In the protective gas described in step 3 and step 4 is argon gas.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042270A (en) * | 2019-04-24 | 2019-07-23 | 宁波金田铜业(集团)股份有限公司 | The preparation method of Ultra-fine grain copper titanium alloy wire |
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| CN101748308A (en) * | 2008-11-28 | 2010-06-23 | 同和金属技术有限公司 | CU-Ti system copper alloy plate and manufacture method thereof |
| CN102822362A (en) * | 2010-03-25 | 2012-12-12 | Jx日矿日石金属株式会社 | High-strength copper titanium plate and production method therefor |
| CN104178660A (en) * | 2014-08-29 | 2014-12-03 | 河南科技大学 | High-strength Cu-Ni-Si alloy and preparation method thereof |
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| JPS60184655A (en) * | 1984-03-02 | 1985-09-20 | Hitachi Metals Ltd | High-strength copper alloy having high electric conductivity |
| CN101748308A (en) * | 2008-11-28 | 2010-06-23 | 同和金属技术有限公司 | CU-Ti system copper alloy plate and manufacture method thereof |
| CN102822362A (en) * | 2010-03-25 | 2012-12-12 | Jx日矿日石金属株式会社 | High-strength copper titanium plate and production method therefor |
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| CN110042270A (en) * | 2019-04-24 | 2019-07-23 | 宁波金田铜业(集团)股份有限公司 | The preparation method of Ultra-fine grain copper titanium alloy wire |
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