CN101974704A - Beryllium-cobalt-copper alloy and manufacturing method thereof - Google Patents
Beryllium-cobalt-copper alloy and manufacturing method thereof Download PDFInfo
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- CN101974704A CN101974704A CN201010529729XA CN201010529729A CN101974704A CN 101974704 A CN101974704 A CN 101974704A CN 201010529729X A CN201010529729X A CN 201010529729XA CN 201010529729 A CN201010529729 A CN 201010529729A CN 101974704 A CN101974704 A CN 101974704A
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Abstract
The invention discloses a beryllium-cobalt-copper alloy which comprises the following components in mass percent: 0.30-0.80% of beryllium, 0.2-2.7% of cobalt, 0.15-0.20% of silicon, 0.2-2.0% of nickel and balance of copper and inevitable trace impurities. The manufacturing method comprises the following steps: (1) taking beryllium, cobalt, silicon, nickel and copper as raw materials; firstly, putting the copper into a furnace for melting until the temperature of the liquid copper reaches 1200-1250 DEG C; subsequently, adding the silicon and the nickel into the liquid copper, adding a covering agent after skimming, and stirring; then, adding the beryllium and the cobalt into the liquid copper, and stirring; (2) regulating the temperature of the liquid beryllium-cobalt-copper alloy to 1150-1200 DEG C, discharging, casting and molding the alloy, and regulating the temperature of the alloy to 915-925 DEG C to obtain a solid beryllium-cobalt-copper alloy casting; and (3) insulating the casting for 1-1.5h at the temperature of 915-925 DEG C, and then, quickly quenching the casting in cold water. The beryllium-cobalt-copper alloy obtained by the invention has good pressure resistance and good heat transfer rate and can resist high temperature.
Description
Technical field
The present invention relates to a kind of alloy and preparation method thereof, a kind of Be-Co-Cu alloy and preparation method thereof particularly, this Be-Co-Cu alloy mainly are the crystallizer neck bushs that uses when being used to make cast steel, also can be used to make the product of other close working conditions environment.
Background technology
At present, people are when cast steel, the precision of cast steel mould, withstand voltage, high temperature resistant, heat transfer rate etc. all there is higher requirement, often need establish one deck precision height, withstand voltage, high temperature resistant, neck bush that heat transfer rate is good at mould, the at present main neck bush that uses some copper alloys, performances such as the neck bush precision of these copper alloys, withstand voltage, high temperature resistant, heat transfer rate and work-ing life all are not fine.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art and a kind of Be-Co-Cu alloy is provided, cast steel with its making is good with the neck bush resistance to pressure, energy is high temperature resistant, heat transfer rate good, long service life, can make the product of other close working conditions of it equally.
Another object of the present invention provides a kind of making method of above-mentioned Be-Co-Cu alloy, and its step is simple, processing condition are less demanding, and manufacturing speed is fast, the good product consistency that makes.
Technical scheme of the present invention is: a kind of Be-Co-Cu alloy, and it comprises the composition of following mass percent: 0.30～0.80% beryllium; 0.2～2.7% cobalt; 0.15～0.20% silicon; 0.2～2.0% nickel; Surplus is copper and inevitable trace impurity.
The further technical scheme of the present invention is: a kind of Be-Co-Cu alloy, and it comprises the composition of following mass percent: 0.30～0.55% beryllium; 1.4～1.7% cobalt; 0.15～0.20% silicon; 0.2% nickel; Surplus is copper and inevitable trace impurity.
The further technical scheme of the present invention is: a kind of Be-Co-Cu alloy, and it comprises the composition of following mass percent: 0.35～0.8% beryllium; 0.2% cobalt; 0.15% silicon; 1.0～2.0% nickel; Surplus is copper and inevitable trace impurity;
The further technical scheme of the present invention is: a kind of Be-Co-Cu alloy, and it comprises the composition of following mass percent: 0.45～0.8% beryllium; 2.4～2.7% cobalt; 0.15% silicon; 0.2% nickel; Surplus is copper and inevitable trace impurity;
Another technical scheme of the present invention is: a kind of making method of Be-Co-Cu alloy, it mainly comprises the steps:
One, melting
Get beryllium, cobalt, silicon, nickel and copper raw material, the mass percent of these raw materials is: 0.30～0.80% beryllium, 0.2～2.7% cobalt, 0.15～0.20% silicon, 0.2～2.0% nickel, surplus are copper and inevitable trace impurity; Earlier copper is put into stove and melt, make copper liquid temperature reach 1200～1250 ℃, then silicon and nickel are joined in the copper liquid, the back of skimming adds insulating covering agent, stirs, and silicon and nickel are all fused in the copper liquid; Again beryllium and cobalt are joined in the copper liquid, stir, beryllium and cobalt are all fused in the copper liquid, obtain liquid Be-Co-Cu alloy;
Two, casting
The liquid Be-Co-Cu alloy temperature that the first step is obtained transfers to 1150～1200 ℃, then liquid Be-Co-Cu alloy is come out of the stove, and is poured into mould, and temperature is transferred to 915～925 ℃, obtains solid-state Be-Co-Cu alloy foundry goods;
Three, solid molten the processing
Is to be incubated 1～1.5 hour under 915～925 ℃ of conditions with the solid-state Be-Co-Cu alloy foundry goods after the casting of second step in temperature, quench fast then in the cold water, obtain the Be-Co-Cu alloy foundry goods of super saturated solid solution, promptly Be-Co-Cu alloy foundry goods at this moment is a kind of supersaturated solid solution.
The present invention further another technical scheme is: the stove described in the first step melting is a vacuum induction furnace; Described insulating covering agent is process incinerating charcoal or cigarette ash or cigarette ash and phosphorus flake graphite powder mixture; After joining silicon and nickel in the copper liquid, be to use the graphite rod after the baking to stir.
The present invention further another technical scheme is: the mould that uses in the casting of second step is the liner cover die that cast steel is used.
Further again another technical scheme of the present invention is: it also comprises the steps:
Four, roughing
Solid-state Be-Co-Cu alloy foundry goods is carried out car, cuts, grinds processing, obtain exquisite Be-Co-Cu alloy foundry goods;
Five, ageing treatment
Be-Co-Cu alloy foundry goods after the processing is incubated 2.5～3.5 hours down at 475～485 ℃, then naturally cooling in air.
Also further another technical scheme of the present invention is: it also comprises the steps:
Six, precision work
Be-Co-Cu alloy foundry goods after the ageing treatment is carried out precision work according to the figure that designs, obtain accurate Be-Co-Cu alloy spare.
The present invention compared with prior art has following characteristics:
The cast steel of making of Be-Co-Cu alloy of the present invention is good with the neck bush resistance to pressure, energy is high temperature resistant, heat transfer rate good, long service life, can make the product of other close working conditions of it equally.
In order to be illustrated more clearly in the present invention, enumerate following examples, but it there is not any restriction to scope of invention.
Embodiment
Embodiment 1
A kind of Be-Co-Cu alloy, it comprises the composition of following mass percent: 0.30～0.55% beryllium; 1.4～1.7% cobalt; 0.15～0.20% silicon; 0.2% nickel; Surplus is copper and inevitable trace impurity.
Its manufacture craft is:
One, melting
Get each composition of above-mentioned proportion by weight, earlier copper (generally adopting electrolytic copper) being put into vacuum induction furnace melts, because the air-breathing property of alloy is strong, vacuum induction furnace can reduce void content and prevent the harm of beryllium (beryllium) oxide compound to human body, make copper liquid temperature reach 1200～1250 ℃, then silicon and nickel are joined in the copper liquid, add insulating covering agent after skimming, insulating covering agent adopts through the incinerating charcoal, also can be that cigarette ash or cigarette ash add an amount of phosphorus flake graphite in powder, fully stir with the graphite rod after the baking, silicon and nickel are all fused in the copper liquid; Again beryllium and cobalt are joined in the copper liquid, fully stir, make beryllium and bore and all fuse in the copper liquid, obtain liquid Be-Co-Cu alloy;
Two, casting
The liquid Be-Co-Cu alloy temperature that the first step is obtained transfers to 1150～1200 ℃, then liquid Be-Co-Cu alloy is come out of the stove, and is poured into mould, and temperature is transferred to 915～925 ℃, obtains solid-state Be-Co-Cu alloy foundry goods; Can select different moulds for use according to purposes during cast, liquid Be-Co-Cu alloy is poured in the corresponding mould, for example, the liner cover die that can select for use cast steel to use, liquid Be-Co-Cu alloy is poured in the liner cover die that cast steel uses, temperature is transferred to 915～925 ℃, obtain the Be-Co-Cu alloy neck bush that solid-state cast steel is used;
Three, solid molten the processing
Is to be incubated 1～1.5 hour under 915～925 ℃ of conditions with the solid-state Be-Co-Cu alloy foundry goods after the casting of second step in temperature, quench fast then in the cold water, can in water, move about simultaneously, better effects if, obtain the Be-Co-Cu alloy foundry goods of super saturated solid solution, promptly Be-Co-Cu alloy foundry goods at this moment is a kind of supersaturated solid solution;
Four, roughing
To solid-state Be-Co-Cu alloy carry out car, cut, processing such as mill, obtain exquisite Be-Co-Cu alloy foundry goods; The Be-Co-Cu alloy neck bush foundry goods of for example cast steel being used carries out processing such as turning mill, obtains exquisite Be-Co-Cu alloy neck bush (being commonly called as copper sheathing);
Five, ageing treatment
Be-Co-Cu alloy after the roughing (perhaps being the Be-Co-Cu alloy foundry goods) is incubated 2.5～3.5 hours down at 475～485 ℃, naturally cooling in air then, obtain good pressure-resistant performance, high temperature resistant, heat transfer rate good, the Be-Co-Cu alloy of long service life (perhaps being the Be-Co-Cu alloy foundry goods).
Six, precision work
Be-Co-Cu alloy foundry goods after the ageing treatment is carried out precision work according to the figure that designs, obtain accurate Be-Co-Cu alloy spare, for example copper sheathing.
Detect data
Get the Be-Co-Cu alloy casting sample that present embodiment obtains and detect, it is as shown in table 1 below to obtain data:
Table 1
Embodiment 2
A kind of Be-Co-Cu alloy, it comprises the composition of following mass percent: 0.35～0.8% beryllium; 0.2% cobalt; 0.15% silicon; 1.0～2.0% nickel; Surplus is copper and inevitable trace impurity;
Its manufacture craft is with embodiment 1.
Detect data
Get the Be-Co-Cu alloy casting sample that present embodiment obtains and detect, it is as shown in table 2 below to obtain data:
Table 2
Embodiment 3
A kind of Be-Co-Cu alloy, it comprises the composition of following mass percent: 0.45～0.8% beryllium; 2.4～2.7% cobalt; 0.15% silicon; 0.2% nickel; Surplus is copper and inevitable trace impurity;
Its manufacture craft is with embodiment 1.
Detect data
Get the Be-Co-Cu alloy casting sample that present embodiment obtains and detect, it is as shown in table 3 below to obtain data:
Table 3
Claims (10)
1. Be-Co-Cu alloy, it is characterized in that: it comprises the composition of following mass percent: 0.30～0.80% beryllium; 0.2～2.7% cobalt; 0.15～0.20% silicon; 0.2～2.0% nickel; Surplus is copper and inevitable trace impurity.
2. Be-Co-Cu alloy according to claim 1 is characterized in that: it comprises the composition of following mass percent: 0.30～0.55% beryllium; 1.4～1.7% brill; 0.15～0.20% silicon; 0.2% nickel; Surplus is copper and inevitable trace impurity.
3. Be-Co-Cu alloy according to claim 1 is characterized in that: it comprises the composition of following mass percent: 0.35～0.8% beryllium; 0.2% cobalt; 0.15% silicon; 1.0～2.0% nickel; Surplus is copper and inevitable trace impurity.
4. Be-Co-Cu alloy according to claim 1 is characterized in that: it comprises the composition of following mass percent: 0.45～0.8% beryllium; 2.4～2.7% cobalt; 0.15% silicon; 0.2% nickel; Surplus is copper and inevitable trace impurity.
5. the making method of a Be-Co-Cu alloy, it is characterized in that: it mainly comprises the steps:
One, melting
Get beryllium, cobalt, silicon, nickel and copper raw material, the mass percent of these raw materials is: 0.30～0.80% beryllium, 0.2～2.7% cobalt, 0.15～0.20% silicon, 0.2～2.0% nickel, surplus are copper and inevitable trace impurity; Earlier copper is put into stove and melt, make copper liquid temperature reach 1200～1250 ℃, then silicon and nickel are joined in the copper liquid, the back of skimming adds insulating covering agent, stirs, and silicon and nickel are all fused in the copper liquid; Again beryllium and cobalt are joined in the copper liquid, stir, beryllium and cobalt are all fused in the copper liquid, obtain liquid Be-Co-Cu alloy;
Two, casting
The liquid Be-Co-Cu alloy temperature that the first step is obtained transfers to 1150～1200 ℃, then liquid Be-Co-Cu alloy is come out of the stove, and is poured into mould, and temperature is transferred to 915～925 ℃, obtains solid-state Be-Co-Cu alloy foundry goods;
Three, solid molten the processing
Is to be incubated 1～1.5 hour under 915～925 ℃ of conditions with the solid-state Be-Co-Cu alloy foundry goods after the casting of second step in temperature, quench fast then in the cold water, obtain the Be-Co-Cu alloy foundry goods of super saturated solid solution, promptly Be-Co-Cu alloy foundry goods at this moment is a kind of supersaturated solid solution.
6. the making method of Be-Co-Cu alloy according to claim 5, it is characterized in that: the stove described in the first step melting is a vacuum induction furnace; Described insulating covering agent is process incinerating charcoal or cigarette ash or cigarette ash and phosphorus flake graphite powder mixture; After joining silicon and nickel in the copper liquid, be to use the graphite rod after the baking to stir.
7. according to the making method of claim 5 or 6 described Be-Co-Cu alloy, it is characterized in that: the mould that uses in the casting of second step is the liner cover die that cast steel is used.
8. according to the making method of claim 5 or 6 described Be-Co-Cu alloy, it is characterized in that: it also comprises the steps:
Four, roughing
Solid-state Be-Co-Cu alloy foundry goods is carried out car, cuts, grinds processing, obtain exquisite Be-Co-Cu alloy foundry goods;
Five, ageing treatment
Be-Co-Cu alloy foundry goods after the processing is incubated 2.5～3.5 hours down at 475～485 ℃, then naturally cooling in air.
9. the making method of Be-Co-Cu alloy according to claim 7, it is characterized in that: it also comprises the steps:
Four, roughing
Solid-state Be-Co-Cu alloy foundry goods is carried out car, cuts, grinds processing, obtain exquisite Be-Co-Cu alloy foundry goods;
Five, ageing treatment
Be-Co-Cu alloy foundry goods after the processing is incubated 2.5～3.5 hours down at 475～485 ℃, then naturally cooling in air.
10. the making method of Be-Co-Cu alloy according to claim 8, it is characterized in that: it also comprises the steps:
Six, precision work
Be-Co-Cu alloy foundry goods after the ageing treatment is carried out precision work according to the figure that designs, obtain accurate Be-Co-Cu alloy spare.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361513A (en) * | 2013-07-17 | 2013-10-23 | 常熟市精工模具制造有限公司 | Non-ferrous metal glass mold and preparation process thereof |
| CN103484700A (en) * | 2013-09-13 | 2014-01-01 | 昆山市巴城镇顺拓工程机械配件厂 | Special alloy preparation technology |
| CN103667785A (en) * | 2013-12-03 | 2014-03-26 | 江苏帕齐尼铜业有限公司 | Copper-cobalt alloy and preparation method thereof |
| CN107805733A (en) * | 2017-11-09 | 2018-03-16 | 河南科技大学 | A kind of polynary height leads beraloy and preparation method thereof |
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550504A (en) * | 2009-05-25 | 2009-10-07 | 扬中市利达合金制品有限公司 | Manufacturing method of high-conductivity low-beryllium bronze band |
-
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- 2010-10-28 CN CN201010529729XA patent/CN101974704A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550504A (en) * | 2009-05-25 | 2009-10-07 | 扬中市利达合金制品有限公司 | Manufacturing method of high-conductivity low-beryllium bronze band |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361513A (en) * | 2013-07-17 | 2013-10-23 | 常熟市精工模具制造有限公司 | Non-ferrous metal glass mold and preparation process thereof |
| CN103484700A (en) * | 2013-09-13 | 2014-01-01 | 昆山市巴城镇顺拓工程机械配件厂 | Special alloy preparation technology |
| CN103667785A (en) * | 2013-12-03 | 2014-03-26 | 江苏帕齐尼铜业有限公司 | Copper-cobalt alloy and preparation method thereof |
| CN107805733A (en) * | 2017-11-09 | 2018-03-16 | 河南科技大学 | A kind of polynary height leads beraloy and preparation method thereof |
| CN107805733B (en) * | 2017-11-09 | 2019-11-19 | 河南科技大学 | A kind of polynary height leads beraloy and preparation method thereof |
| 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 |
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