CN105970017A - Copper alloy conductive screw for nuclear power and preparation method thereof - Google Patents
Copper alloy conductive screw for nuclear power and preparation method thereof Download PDFInfo
- Publication number
- CN105970017A CN105970017A CN201610325699.8A CN201610325699A CN105970017A CN 105970017 A CN105970017 A CN 105970017A CN 201610325699 A CN201610325699 A CN 201610325699A CN 105970017 A CN105970017 A CN 105970017A
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- copper
- nuclear power
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- copper alloy
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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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Conductive Materials (AREA)
Abstract
The invention relates to a copper alloy conductive screw for nuclear power and a preparation method thereof. The copper alloy conductive screw is formed by alloy including, by weight, 0.14%-0.22% of zirconium, 99.97% or over of zirconium and copper alloy and 0.03% or less of impurities. The copper alloy conductive screw is applicable to the field of half-speed power generators of nuclear power steam turbines, has high core strength and hardness, and can meet the higher quality requirement in the nuclear power industry.
Description
Technical field
The present invention relates to a kind of nuclear power copper alloy contact screw and preparation method thereof.
Background technology
At present, copper alloy is widely used in departments such as machinery, light industry, clock and watch, general
Although logical copper alloy contact screw has a preferable conductive performance, but although surface strength relatively
Height, but core strength is inadequate, is therefore not used to the nuclear power the strictest to core strength requirement
Industry.
Summary of the invention
The technical problem to be solved is to provide one and can be applicable to nuclear power steamer Half Speed
Electrical generator fields, as the copper zirconium alloy and preparation method thereof of contact screw, has high core
Intensity and hardness, and high electrical conductivity.The present invention solves the technical side of above-mentioned technical problem
Case is as follows: nuclear power copper alloy contact screw is in terms of the percentage composition of alloy gross weight: zirconium accounts for
0.14～0.22%, zirconium+copper >=99.97%, impurity content≤0.03%；Its preparation method includes
Following steps:
1) by the zirconium that percentage by weight is 0.1～0.25%, 99.7～99.9% copper be placed on one
Rise and cast, obtain copper-zircaloy ingot casting；
2) by step 1) in described copper-zircaloy ingot casting of obtaining amputate rising head the clean outer layer of car
Oxide skin, obtains pure ingot casting base；
3) by step 2) in the described ingot casting base that obtains forge, to form copper-zircaloy
Rod base；
4) by step 3) in copper-zirconium alloy bar base of obtaining carry out solution heat treatment, consolidate
Excellent base after molten；
5) by step 4) in excellent base after the solid solution that obtains carry out secondary forging, obtain secondary
Forging rod base；
6) by step 5) in obtain secondary forging rod base carry out aging strengthening model, led
Electricity screw blank；
7) by step 6) in the contact screw blank that obtains be machined out by drawing, obtain
Contact screw product.
In step 1) in, described in carry out casting be to carry out in vacuum melting furnace, relative vacuum
Degree is less than-133 handkerchiefs, and smelting temperature is 1220～1320 DEG C, smelting time 3～5 hours.
In step 3) in, described in carry out forging be that ingot casting base is heated to 930～970 DEG C, protect
Temperature is forged after 1～3 hour again.
In step 4) in, described in carry out solution heat treatment be uniformly to be added by copper-zirconium alloy bar base
Hot to 920～960 DEG C, water-cooled after being incubated 30～90 minutes.
In step 5) in, described in carry out secondary forging be by solid solution after excellent base be uniformly heated to
440～500 DEG C, forge after being incubated 1～4 hour, forging deformation amount >=30%.
In step 6) in, described in carry out aging strengthening model be by secondary forging rod base uniformly heat
To 400～440 DEG C, air cooling after being incubated 3～6 hours.
Technique effect:
The present invention provide a kind of nuclear power copper alloy contact screw be one have high conductivity,
High intensity and the alloy material of high rigidity, also can guarantee that core while ensureing surface property
Can so that it is the nuclear power work the strictest to material homogeneity and core strength requirement can be used in
Industry.
Accompanying drawing illustrates: Fig. 1 is the test result of embodiment 1～4.
Detailed description of the invention
Principle and feature to the present invention are described below, and example is served only for explaining this
Bright, it is not intended to limit the scope of the present invention.
Embodiment 1:
In terms of the percentage composition of copper zirconium alloy gross weight: zirconium accounts for 0.15%, copper accounts for 99.82%, miscellaneous
Matter content 0.03%.
Preparation method: copper, zirconium are put into vacuum melting furnace, after 1220 DEG C of fusings, waters
Form alloy pig；Prepared alloy pig is used successively forge hot (heating-up temperature 950 DEG C, insulation
3 hours time), solid solution (heating-up temperature 940 DEG C, temperature retention time 80 minutes), secondary
Forging (heating-up temperature 480 DEG C, temperature retention time 2 hours, deflection 45%), timeliness (heating
Temperature 440 DEG C, temperature retention time 3 hours) treatment process, makeAbout
177kg weight copper zirconium alloy rod.
Embodiment 2:
In terms of the percentage composition of copper zirconium alloy gross weight: zirconium accounts for 0.18%, copper accounts for 99.80%, miscellaneous
Matter content 0.02%.
Preparation method: copper, zirconium are put into vacuum melting furnace, after 1280 DEG C of fusings, waters
Form alloy pig；Prepared alloy pig is used successively forge hot (heating-up temperature 970 DEG C, insulation
1.5 hours time), solid solution (heating-up temperature 950 DEG C, temperature retention time 75 minutes), two
Secondary forging (heating-up temperature 500 DEG C, temperature retention time 1 hour, deflection 40%), timeliness (add
Hot temperature 420 DEG C, temperature retention time 5 hours) treatment process, makeAbout
177kg weight copper zirconium alloy rod.
Embodiment 3:
In terms of the percentage composition of copper zirconium alloy gross weight: zirconium accounts for 0.20%, copper accounts for 99.78%, miscellaneous
Matter content 0.02%.
Preparation method: copper, zirconium are put into vacuum melting furnace, after 1250 DEG C of fusings, waters
Form alloy pig；Prepared alloy pig is used successively forge hot (heating-up temperature 930 DEG C, insulation
3 hours time), solid solution (heating-up temperature 960 DEG C, temperature retention time 30 minutes), secondary
Forging (heating-up temperature 440 DEG C, temperature retention time 4 hours, deflection 35%), timeliness (heating
Temperature 400 DEG C, temperature retention time 6 hours) treatment process, makeAbout
177kg weight copper zirconium alloy rod.
Embodiment 4:
In terms of the percentage composition of copper zirconium alloy gross weight: zirconium accounts for 0.22%, copper accounts for 99.75%, miscellaneous
Matter content 0.03%.
Preparation method: copper, zirconium are put into vacuum melting furnace, after 1320 DEG C of fusings, waters
Form alloy pig；Prepared alloy pig is used successively forge hot (heating-up temperature 950 DEG C, insulation
3 hours time), solid solution (heating-up temperature 940 DEG C, temperature retention time 80 minutes), secondary
Forging (heating-up temperature 460 DEG C, temperature retention time 3 hours, deflection 30%), timeliness (heating
Temperature 440 DEG C, temperature retention time 3 hours) treatment process, makeAbout
177kg weight copper zirconium alloy rod.
The present invention by the performance of copper zirconium alloy rod base prepared by embodiment 1～4 according to country
Standard is tested, and sample position is Bang Pi center, test result as shown in Figure 1:
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, all
Within protection scope of the present invention should being included in.
Claims (6)
1. nuclear power copper alloy contact screw and preparation method thereof, it is characterised in that core
Electricity copper alloy contact screw is in terms of the percentage composition of alloy gross weight: zirconium accounts for 0.14～0.22%,
Zirconium+copper >=99.97%, impurity content≤0.03%；Its preparation method comprises the following steps:
1) by the zirconium that percentage by weight is 0.1～0.25%, 99.7～99.9% copper be placed on one
Rise and cast, obtain copper-zircaloy ingot casting；
2) by step 1) in described copper-zircaloy ingot casting of obtaining amputate rising head the clean outer layer of car
Oxide skin, obtains pure ingot casting base；
3) by step 2) in the described ingot casting base that obtains forge, to form copper-zircaloy
Rod base；
4) by step 3) in copper-zirconium alloy bar base of obtaining carry out solution heat treatment, consolidate
Excellent base after molten；
5) by step 4) in excellent base after the solid solution that obtains carry out secondary forging, obtain secondary
Forging rod base；
6) by step 5) in obtain secondary forging rod base carry out aging strengthening model, led
Electricity screw blank；
7) by step 6) in the contact screw blank that obtains be machined out by drawing, obtain
Contact screw product.
The preparation side of a kind of nuclear power copper alloy contact screw the most according to claim 1
Method, it is characterised in that the step 1 in claim 1) in, described in carry out casting be very
Carrying out in empty smelting furnace, relative vacuum degree is less than-133 handkerchiefs, and smelting temperature is 1220～1320
DEG C, smelting time 3～5 hours.
The preparation side of a kind of nuclear power copper alloy contact screw the most according to claim 1
Method, it is characterised in that the step 3 in claim 1) in, described in carry out forging be to cast
Ingot blank is heated to 930～970 DEG C, forges after being incubated 1～3 hour again.
The preparation side of a kind of nuclear power copper alloy contact screw the most according to claim 1
Method, it is characterised in that the step 4 in claim 1) in, described in carry out solution heat treatment
It is that copper-zirconium alloy bar base is heated uniformly to 920～960 DEG C, water after being incubated 30～90 minutes
Cold.
The preparation side of a kind of nuclear power copper alloy contact screw the most according to claim 1
Method, it is characterised in that the step 5 in claim 1) in, described in carry out secondary forging be
Excellent base after solid solution is uniformly heated to 440～500 DEG C, forges after being incubated 1～4 hour,
Forging deformation amount >=30%.
The preparation side of a kind of nuclear power copper alloy contact screw the most according to claim 1
Method, it is characterised in that the step 6 in claim 1) in, described in carry out aging strengthening model
It is that secondary forging rod base is heated uniformly to 400～440 DEG C, air cooling after being incubated 3～6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325699.8A CN105970017A (en) | 2016-05-17 | 2016-05-17 | Copper alloy conductive screw for nuclear power and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325699.8A CN105970017A (en) | 2016-05-17 | 2016-05-17 | Copper alloy conductive screw for nuclear power and preparation method thereof |
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| CN105970017A true CN105970017A (en) | 2016-09-28 |
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| CN201610325699.8A Pending CN105970017A (en) | 2016-05-17 | 2016-05-17 | Copper alloy conductive screw for nuclear power and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117734A (en) * | 2019-06-10 | 2019-08-13 | 瑞安市强达不锈钢标准件有限公司 | A kind of processing technology of bolt |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818109A (en) * | 2006-03-14 | 2006-08-16 | 河南科技大学 | Copper alloy materials with high-strength and conducting performances and production thereof |
| CN101348874A (en) * | 2008-09-08 | 2009-01-21 | 河南科技大学 | High performance copper-based alloy material and preparation thereof |
| CN102392205A (en) * | 2011-11-25 | 2012-03-28 | 汕头华兴冶金设备股份有限公司 | Method for preparing precision copper part |
| CN104232978A (en) * | 2014-09-01 | 2014-12-24 | 航天材料及工艺研究所 | Preparation method of copper-silver-zirconium alloy large-size forged biscuit |
-
2016
- 2016-05-17 CN CN201610325699.8A patent/CN105970017A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818109A (en) * | 2006-03-14 | 2006-08-16 | 河南科技大学 | Copper alloy materials with high-strength and conducting performances and production thereof |
| CN101348874A (en) * | 2008-09-08 | 2009-01-21 | 河南科技大学 | High performance copper-based alloy material and preparation thereof |
| CN102392205A (en) * | 2011-11-25 | 2012-03-28 | 汕头华兴冶金设备股份有限公司 | Method for preparing precision copper part |
| CN104232978A (en) * | 2014-09-01 | 2014-12-24 | 航天材料及工艺研究所 | Preparation method of copper-silver-zirconium alloy large-size forged biscuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117734A (en) * | 2019-06-10 | 2019-08-13 | 瑞安市强达不锈钢标准件有限公司 | A kind of processing technology of bolt |
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