CN102181744A - High-performance beryllium-copper alloy and preparation method thereof - Google Patents
High-performance beryllium-copper alloy and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a high-performance beryllium-copper alloy and a preparation method thereof. The high-performance beryllium copper comprises 1.6-2.2% of beryllium, 0.35-0.65% of cobalt and nickel, 0.03-0.1% of yttrium, 0.03-0.1% of titanium, 0.1-0.3% of boron, 0.1-0.3% of magnesium and the balance of copper in percentage by weight, wherein the beryllium is added in the form of a beryllium-copper immediate alloy and accounts for 3.8-4.2% of the beryllium-copper alloy; the cobalt and the nickel are also respectively added in the form of immediate alloys of a cobalt-copper alloy and a nickel-copper alloy and respectively account for 8-12% of the alloy; the titanium is added in the form of a titanium-copper immediate alloy and accounts for 4-6% of the alloy; and the yttrium is added in the form of a yttrium-copper immediate alloy and accounts for 8-12% of the alloy. By using the invention, the mechanical comprehensive performance is improved, the service life of the material is largely prolonged, and the service life of a beryllium-copper injection plunger head applied to a die casting machine is increased to more than 20000 mold times from the original 8000-12000 mold times.
Description
[technical field]
The present invention relates to alloy material, relate in particular to a kind of high-performance beryllium copper and preparation method thereof.
[background technology]
The beryllium copper forge piece is widely used in mould manufacturing, electronic apparatus, communication Instrument, aerospace, petrochemical complex, controls fields such as gold mine mountain, vehicle appliance, machinofacture.At present, known beryllium copper material prescription is mainly formulated by metallic elements such as Be, Co, Ni, get by sand mold casting again, though berylliumbronze is an over-all properties best material in the copper base alloy, but be limited by present backward production technique and prescription, the over-all properties of beryllium copper still has to be hoisted, and foundry goods single-piece weight can only accomplish below the 200kg, has restricted the application of beryllium copper forge piece greatly.
[summary of the invention]
The present invention is directed to the above-mentioned defective of prior art, a kind of high-performance beryllium copper and preparation method thereof is provided, to promote the over-all properties of alloy.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of high-performance beryllium copper comprises beryllium 1.6-2.2 by weight percentage, and cobalt and nickel is 0.35-0.65 altogether, yttrium 0.03-0.1, titanium 0.03-0.1, boron 0.1-0.3, magnesium 0.1-0.3, the copper of surplus; Wherein, beryllium adds with the form of beryllium copper master alloy, beryllium accounts for the weight percentage of beryllium copper 3.8-4.2, cobalt and nickel also add with the master alloy form of cobalt-copper alloy, corronel respectively, cobalt and nickel account for the weight percentage of the 8-12 of alloy respectively, and titanium adds with titanium copper master alloy form, and titanium accounts for the weight percentage of the 4-6 of alloy, yttrium adds with yttrium copper master alloy form, and yttrium accounts for the weight percentage of the 8-12 of alloy.
Preparation method as above-mentioned high-performance beryllium copper is characterized in that, may further comprise the steps:
(1) melting: the beryllium copper master alloy that adds cobalt copper master alloy, ambrose alloy master alloy, 60%-80% carries out melting and covers boron and magnesium at alloy surface, after treating that metal melts fully, be warming up to 1100-1200 ℃, add remaining beryllium copper and carry out melting, treat that metal melts back adding titanium copper fully, yttrium copper master alloy carries out melting and covers boron and magnesium at alloy surface;
(2) cast: above-mentioned melting gained liquation is poured into pre-profiling in the vibration permanent mold casting device;
(3) forge hot: will pour into a mould the gained alloy pig and under 705-770 ℃ of environment, be incubated, and in forging press, carry out the distortion of 30-35% then and forge;
(4) solution treatment: the foundry goods after the forge hot is incubated under 780-820 ℃ of environment, carries out quench treatment then;
(5) cold forging is handled;
(6) age hardening is handled.
As can be seen from the above technical solutions, the present invention has added micro-Yttrium base rare earth, magnesium, boron, the mechanical integrated performance of material has been improved, result of use is obvious, prolonged the work-ing life of material greatly, the beryllium copper injection plunger that is applied in the pressure die-casting machine is inferior by original 8000-12000 mould, reach more than 20,000 moulds time, add boron and effectively removed the oxide compound in the alloy, reach cleansing soln, degasification, the slagging-off purpose, yield rate significantly promotes, the present invention also adopts the vibration permanent mold casting to improve the foundry goods substance, from bringing up to 800kg of the present invention below the original 200kg.
[description of drawings]
Accompanying drawing is to vibrate permanent mold casting apparatus structure diagrammatic sketch for the present invention.
[embodiment]
The present invention is further detailed explanation below in conjunction with embodiment.
Embodiment one:
High-performance beryllium copper of the present invention comprises beryllium 2 by weight percentage, cobalt and nickel totally 0.45, yttrium 0.08, titanium 0.06, boron 0.1, magnesium 0.1, the copper of surplus; Wherein, beryllium adds with the form of beryllium copper master alloy, beryllium accounts for the weight percentage of beryllium copper 4, cobalt and nickel also add with the master alloy form of cobalt-copper alloy, corronel respectively, cobalt and nickel account for the weight percentage of alloy 10 respectively, and titanium adds with titanium copper master alloy form, and titanium accounts for the weight percentage of alloy 5, yttrium adds with yttrium copper master alloy form, and yttrium accounts for the weight percentage of alloy 10.
Preparation method as above-mentioned high-performance beryllium copper may further comprise the steps:
(1) melting: earlier with electrolytic copper Co-Cu master alloy, Ni-Cu master alloy, 75% beryllium copper master alloy, go into stove, adding boron slag (mixture of borax and MAGNESIUM METAL) covers, heat up, treat that metal melts fully after, be warmed up to 1150 ℃, add remaining beryllium copper, be warming up to 1150 ℃ once more, stop to send electricity, add baked titanium copper, yttrium copper heavy rare earth alloy, stirred two minutes with graphite rod, drag for removing dross, coming out of the stove pours into container with metallic solution, secondary stirring, add straw, removal of impurities, slagging-off, add insulating covering agent and cover, treat just can cast when solution temperature is reduced to 1080 ℃.
Add cobalt copper master alloy, ambrose alloy master alloy, 75% beryllium copper master alloy carries out melting and covers boron and magnesium at alloy surface, after treating that metal melts fully, be warming up to 1150 ℃, add remaining beryllium copper and carry out melting, treat that metal melts back adding titanium copper fully, yttrium copper master alloy carries out melting and covers boron and magnesium at alloy surface;
(2) cast: above-mentioned melting gained liquation is poured in the vibration permanent mold casting device, be poured into rising head fast, treat that liquation rises to sand mold rising head 50mm place, stopped to pour into a mould 20 seconds, and treated that its liquid level shrank, stopped 40 seconds being poured into 120mm then, fill with rising head at last, add the charcoal insulated feeder, treat that the rising head liquid level shrinks fully after, opened shaking platform 3 minutes;
(3) forge hot: roughing is milled the foundry goods on surface, go into the heating of box resistance furnace, temperature rise to 750 ℃, soaking time is every 25.4MM section thickness insulation 1 hour; Reheat is incubated every 25.4MM section thickness insulation 0.5 hour;
The foundry goods that soaking time is enough is taken out and is put into forging press, makes its deformation processing rate reach 3:1;
(4) solution treatment: the foundry goods after the forge hot is warming up to 800 ℃ of insulations 5 hours, shrend cooling rapidly;
(5) cold forging is handled;
(6) age hardening is handled: foundry goods behind the cold forging, be warming up to 200 ℃ of insulations 1 hour earlier, and be warming up to 350 ℃ again, be incubated 3 hours, the air cooling of coming out of the stove.
Embodiment two: high-performance beryllium copper of the present invention comprises beryllium 1.6, cobalt and nickel totally 0.35, yttrium 0.03-0.1, titanium 0.03, boron 0.1, magnesium 0.1, the copper of surplus by weight percentage; Wherein, beryllium adds with the form of beryllium copper master alloy, beryllium accounts for the weight percentage of beryllium copper 3.8, cobalt and nickel also add with the master alloy form of cobalt-copper alloy, corronel respectively, cobalt and nickel account for 8 weight percentage of alloy respectively, and titanium adds with titanium copper master alloy form, and titanium accounts for 4 weight percentage of alloy, yttrium adds with yttrium copper master alloy form, and yttrium accounts for 8 weight percentage of alloy.
Preparation method as above-mentioned high-performance beryllium copper may further comprise the steps:
(1) melting: add cobalt copper master alloy, ambrose alloy master alloy, 60% beryllium copper master alloy carries out melting and covers boron and magnesium at alloy surface, after treating that metal melts fully, be warming up to 1100 ℃, add remaining beryllium copper and carry out melting, treat that metal melts back adding titanium copper fully, yttrium copper master alloy carries out melting and covers boron and magnesium at alloy surface;
(2) cast: above-mentioned melting gained liquation is poured into pre-profiling in the vibration permanent mold casting device;
(3) forge hot: will pour into a mould the gained alloy pig and under 705 ℃ of environment, be incubated, and in forging press, carry out 30% distortion forging then;
(4) solution treatment: the foundry goods after the forge hot is incubated under 780 ℃ of environment, carries out quench treatment then;
(5) cold forging is handled: handle by the traditional method cold forging;
(6) age hardening is handled: handle by the traditional method age hardening.
Embodiment three: high-performance beryllium copper of the present invention comprises beryllium 2.2, cobalt and nickel totally 0.65, yttrium 0.03-0.1, titanium 0.1, boron 0.3, magnesium 0.3, the copper of surplus by weight percentage; Wherein, beryllium adds with the form of beryllium copper master alloy, beryllium accounts for the weight percentage of beryllium copper 4.2, cobalt and nickel also add with the master alloy form of cobalt-copper alloy, corronel respectively, cobalt and nickel account for 12 weight percentage of alloy respectively, and titanium adds with titanium copper master alloy form, and titanium accounts for 6 weight percentage of alloy, yttrium adds with yttrium copper master alloy form, and yttrium accounts for 12 weight percentage of alloy.
Preparation method as above-mentioned high-performance beryllium copper is characterized in that, may further comprise the steps:
(1) melting: add cobalt copper master alloy, ambrose alloy master alloy, 80% beryllium copper master alloy carries out melting and covers boron and magnesium at alloy surface, after treating that metal melts fully, be warming up to 1200 ℃, add remaining beryllium copper and carry out melting, treat that metal melts back adding titanium copper fully, yttrium copper master alloy carries out melting and covers boron and magnesium at alloy surface;
(2) cast: above-mentioned melting gained liquation is poured into pre-profiling in the vibration permanent mold casting device;
(3) forge hot: will pour into a mould the gained alloy pig and under 770 ℃ of environment, be incubated, and in forging press, carry out 35% distortion forging then;
(4) solution treatment: the foundry goods after the forge hot is incubated under 820 ℃ of environment, carries out quench treatment according to traditional method then;
(5) cold forging is handled;
(6) age hardening is handled.
As shown in drawings, above-mentioned vibration permanent mold casting device comprises sand mold rising head 1, graphite assembling die 2, heat-resisting gray iron bed die 3, graphite cushion block 4, shaking platform 5, graphite cushion block 4 is located on the shaking platform 5, heat-resisting gray iron bed die 3 is located at graphite cushion block 4, graphite assembling die 2 is located on the heat-resisting gray iron bed die 3, graphite assembling die external application stirrup is fixed, and adds a cover sand mold rising head 1 above.
Below be copper material of the present invention and the mechanical integrated performance comparison of existing copper material:
| ? | Former beryllium copper material | The present invention |
| Thermal conductance | 105％W/M.K20C | 140％W/M.K20C |
| Softening temperature | 550℃ | 580℃ |
| Electricity is led | 18? IACS﹪ | 25? IAu％ |
| Elastic mould | 128GPa | 150GPa |
| Tensile strength | 1105MPa | 1200MPa |
| Yield strength | 1035MPa | 1113Mpa |
| Unit elongation | 1％ | 1％ |
| Hardness | 38-42HRC | More than the HRC45 |
| Unit weight | Below the 200kg | Can reach 800Kg |
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (2)
1. a high-performance beryllium copper is characterized in that, comprises beryllium 1.6-2.2 by weight percentage, and cobalt and nickel is 0.35-0.65 altogether, yttrium 0.03-0.1, titanium 0.03-0.1, boron 0.1-0.3, magnesium 0.1-0.3, the copper of surplus; Wherein, beryllium adds with the form of beryllium copper master alloy, beryllium accounts for the weight percentage of beryllium copper 3.8-4.2, cobalt and nickel also add with the master alloy form of cobalt-copper alloy, corronel respectively, cobalt and nickel account for the weight percentage of the 8-12 of alloy respectively, and titanium adds with titanium copper master alloy form, and titanium accounts for the weight percentage of the 4-6 of alloy, yttrium adds with yttrium copper master alloy form, and yttrium accounts for the weight percentage of the 8-12 of alloy.
2. the preparation method of high-performance beryllium copper according to claim 1 is characterized in that, may further comprise the steps:
(1) melting: the beryllium copper master alloy that adds cobalt copper master alloy, ambrose alloy master alloy, 60%-80% carries out melting and covers boron and magnesium at alloy surface, after treating that metal melts fully, be warming up to 1100-1200 ℃, add remaining beryllium copper and carry out melting, treat that metal melts back adding titanium copper fully, yttrium copper master alloy carries out melting and covers boron and magnesium at alloy surface;
(2) cast: above-mentioned melting gained liquation is poured into pre-profiling in the vibration permanent mold casting device;
(3) forge hot: will pour into a mould the gained alloy pig and under 705-770 ℃ of environment, be incubated, and in forging press, carry out the distortion of 30-35% then and forge;
(4) solution treatment: the foundry goods after the forge hot is incubated under 780-820 ℃ of environment, carries out quench treatment then;
(5) cold forging is handled;
(6) age hardening is handled.
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Cited By (12)
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| CN103014634A (en) * | 2012-12-18 | 2013-04-03 | 兰州大成科技股份有限公司 | Method for preparing beryllium-copper alloy sheet by adopting continuous multi-arc ion plating physical vapour deposition |
| CN103866155A (en) * | 2014-03-20 | 2014-06-18 | 峨眉山市中山新材料科技有限公司 | Beryllium-copper alloy production and ingot casting process |
| CN104152728A (en) * | 2014-06-05 | 2014-11-19 | 锐展(铜陵)科技有限公司 | Preparation method of high heat-conducting copper alloy wire for automobile wire harness |
| CN104769139A (en) * | 2012-11-02 | 2015-07-08 | 日本碍子株式会社 | Cu-be alloy and method for producing same |
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| CN114959352A (en) * | 2022-06-16 | 2022-08-30 | 宁波兴敖达金属新材料有限公司 | Beryllium bronze alloy for aerospace electrical and green preparation method thereof |
| CN115069977A (en) * | 2022-07-15 | 2022-09-20 | 广东省科学院佛山产业技术研究院有限公司 | Copper-beryllium-cobalt alloy plate for mold and preparation method thereof |
| CN115261666A (en) * | 2022-07-18 | 2022-11-01 | 江西省金叶有色新材料研究院 | Lead-free high-strength high-conductivity beryllium bronze bar and manufacturing method and application thereof |
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| US10094002B2 (en) | 2012-11-02 | 2018-10-09 | Ngk Insulators, Ltd. | Cu—Be alloy and method for producing same |
| CN104769139B (en) * | 2012-11-02 | 2017-06-09 | 日本碍子株式会社 | Cu Be alloys and its manufacture method |
| CN104769139A (en) * | 2012-11-02 | 2015-07-08 | 日本碍子株式会社 | Cu-be alloy and method for producing same |
| CN103014634B (en) * | 2012-12-18 | 2014-07-09 | 兰州大成科技股份有限公司 | Method for preparing beryllium-copper alloy sheet by adopting continuous multi-arc ion plating physical vapour deposition |
| CN103014634A (en) * | 2012-12-18 | 2013-04-03 | 兰州大成科技股份有限公司 | Method for preparing beryllium-copper alloy sheet by adopting continuous multi-arc ion plating physical vapour deposition |
| CN103866155A (en) * | 2014-03-20 | 2014-06-18 | 峨眉山市中山新材料科技有限公司 | Beryllium-copper alloy production and ingot casting process |
| CN104152728A (en) * | 2014-06-05 | 2014-11-19 | 锐展(铜陵)科技有限公司 | Preparation method of high heat-conducting copper alloy wire for automobile wire harness |
| CN105463236A (en) * | 2015-12-02 | 2016-04-06 | 芜湖楚江合金铜材有限公司 | Efficient composite copper alloy wire rod and machining process thereof |
| CN105547029A (en) * | 2015-12-21 | 2016-05-04 | 江苏格林威尔金属材料科技有限公司 | Copper alloy internal groove circular tube used for air conditioner radiator |
| CN113174509A (en) * | 2021-03-15 | 2021-07-27 | 江阴金湾合金材料有限公司 | High-strength beryllium copper alloy bar and preparation process thereof |
| CN113046588A (en) * | 2021-03-15 | 2021-06-29 | 南昌航空大学 | Method for preparing high-performance beryllium copper alloy through mechanical vibration treatment and high-performance beryllium copper alloy |
| CN113046588B (en) * | 2021-03-15 | 2022-01-11 | 南昌航空大学 | Method for preparing high-performance beryllium copper alloy through mechanical vibration treatment and high-performance beryllium copper alloy |
| CN115478190A (en) * | 2021-10-20 | 2022-12-16 | 烟台万隆真空冶金股份有限公司 | Copper alloy for thin strip chilling crystallizer, preparation method thereof and thin strip chilling crystallizer |
| CN114959352A (en) * | 2022-06-16 | 2022-08-30 | 宁波兴敖达金属新材料有限公司 | Beryllium bronze alloy for aerospace electrical and green preparation method thereof |
| CN115069977A (en) * | 2022-07-15 | 2022-09-20 | 广东省科学院佛山产业技术研究院有限公司 | Copper-beryllium-cobalt alloy plate for mold and preparation method thereof |
| CN115261666A (en) * | 2022-07-18 | 2022-11-01 | 江西省金叶有色新材料研究院 | Lead-free high-strength high-conductivity beryllium bronze bar and manufacturing method and application thereof |
| CN115261666B (en) * | 2022-07-18 | 2023-03-31 | 江西省金叶有色新材料研究院 | Lead-free high-strength high-conductivity beryllium bronze bar and manufacturing method and application thereof |
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Application publication date: 20110914 |