CN109536773A - A kind of Cu alloy material, preparation method and application - Google Patents
A kind of Cu alloy material, preparation method and application Download PDFInfo
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- CN109536773A CN109536773A CN201811633987.5A CN201811633987A CN109536773A CN 109536773 A CN109536773 A CN 109536773A CN 201811633987 A CN201811633987 A CN 201811633987A CN 109536773 A CN109536773 A CN 109536773A
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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
- C22C9/04—Alloys based on copper with zinc 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
- C22C1/026—Alloys based on aluminium
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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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
Abstract
The invention discloses a kind of Cu alloy materials, preparation method and application, are related to the technical field of copper alloy preparation.The Cu alloy material is made of the element of following mass percent: Zn 26~30%;Al 3.0~4.5%;Fe 0.5~1.3%;Pb 0.5~1.5%;Ni 2.0~4.0%;Si 0.5~1.5%;Co≤1.0%;Surplus is Cu.Preparation method includes: A, preparation five yuan of intermediate alloys of Al-Ni-Si-Fe-Co;B, the supplied materials of five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co is provided, after heating fusing, refining slagging-off, sampling;C, adjustment temperature is to 1070~1150 DEG C, and horizontal casting is at ingot casting, extrusion forming at a temperature of 670~730 DEG C;Or adjustment temperature, to 1070~1150 DEG C, horizontal casting is at tubing.Cylinder liner, valve plate, piston shoes etc. are made of Cu alloy material, tensile strength with higher, excellent sintering resistance energy, good extensibility and the reliable advantage of hardness.
Description
Technical field
The present invention relates to the technical field of copper alloy preparation, be specifically related to a kind of Cu alloy material, and preparation method thereof.
Background technique
Polynary complexity Cu alloy material has excellent comprehensive performance, is widely used in engineering machinery, automobile and other industries.And liquid
In pressure field hydraulic pump and hydraulic motor, there are the high temperature of alternation operation, high pressure liquid pressure oil, and need with steel part high-speed friction etc.
Complicated operation environment proposes more property requirements to Cu alloy material, and there is an urgent need to develop go out except with high-intensitive, high
Outside hardness, wear-resisting and good plasticity, the material of good endurance, sintering resistance energy is also required.Such as: cylinder liner, flow
Disk, piston shoes etc. are the important spare parts of various hydraulic machinery high speed oil pumps, hydraulic motor, and material is copper conjunction under normal circumstances
Gold, in order to guarantee service life that these components work normally in hydraulic pump and hydraulic motor, to its intensity, wearability,
Plasticity, fatigue durability and sintering resistance have high requirement.
Summary of the invention
The purpose of the invention is to overcome the performance of conventional High Intensity wear-resistant copper alloy material insufficient, one kind is provided and was both had
There are high intensity, high rigidity, good plasticity and excellent abrasive resistance, and the Cu alloy material with good sintering resistance, preparation method
And application, it can be applied to the manufacture of the cylinder liner, valve plate, piston shoes of Hydraulic Field.
The present invention provides a kind of Cu alloy material, is made of the element of following mass percent:
Zn 26~30%;
Al 3.0~4.5%;
Fe 0.5~1.3%;
Pb 0.5~1.5%;
Ni 2.0~4.0%;
Si 0.5~1.5%;
Co≤1.0%;
Surplus is Cu.
The embodiment of the present invention also provides a kind of preparation method based on above-mentioned Cu alloy material, includes the following steps:
A, five yuan of intermediate alloys of Al-Ni-Si-Fe-Co are prepared;
B, coming for five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co is provided according to each element composition mass percent
Material, after heating fusing, refining slagging-off then is warming up to 1100~1150 DEG C, stands, sampling, adjusting component, adjustment element form to
Specified mass percent;
C, adjustment temperature is to 1070~1150 DEG C, and horizontal casting is at ingot casting, extrusion forming at a temperature of 670~730 DEG C, or
Temperature is adjusted to 1070~1150 DEG C, horizontal casting is at tubing.
Based on the above technical solution, step A includes the following steps:
A1, the supplied materials of Al, Ni, Si, Fe, Co are provided according to each element composition mass percent;
A2, it first puts in part Al, part Ni and the Fe to furnace of whole, heating fusing;
A3, whole Co, Si and remaining Ni are added;
A4, remaining Al, heating fusing are eventually adding.
Based on the above technical solution, the quality hundred of each element of five yuan of intermediate alloys of Al-Ni-Si-Fe-Co
Divide than being Al 42.0%, Ni 30.5%, Si 11.2%, Fe 8.1%, Co8.2%.
Based on the above technical solution, step A3 includes: that whole Co and Si is added, and heating fusing is added portionwise
Remaining nickel block is melted.
Based on the above technical solution, it in step A3, is added after whole Co and Si, is allowed to drill rod in melt
Interior agitation is so as to its rapid melting, and whether there is or not encrustation phenomenas with drill rod inspection furnace bottom, if there is then continuing heating fusing.
Based on the above technical solution, further include following steps after step A4:
A5, in 1300~1400 DEG C of temperature range 20~30min of inside holding, stand, stirring slagging-off;
A6, sampling, adjustment element are formed to specified mass percent.
Based on the above technical solution, step B includes the following steps:
B1, five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co are provided according to each element composition mass percent
Supplied materials;
B2, five yuan of intermediate alloys of Cu and Al-Ni-Si-Fe-Co are first added, after heating fusing, Zn and Pb is added in slagging-off, is risen
It after temperature fusing, then heats up boiling 2~3 minutes, refines, stand, slagging-off;
B3,1100~1150 DEG C are warming up to, stood, sampling, adjustment element is formed to specified mass percent.
Based on the above technical solution, the supplied materials in step B1 further includes that molding obtained in crumble and B3 is melted down
Material, the step B2 include the following steps:
B2-1, part crumble, refining agent and cosolvent is first added, be rapidly heated fusing, adds Cu and Al-Ni-Si-
Five yuan of intermediate alloys of Fe-Co, heat up melting;
B2-2, crumble is added portionwise, refining agent and part molding foundry returns is added while crumble is added every time;
B2-3, after all material fusing, refining slagging-off is primary;
B2-4, remaining crumble and part molding foundry returns are continuously added, heat up melting;
Remaining molding foundry returns cooling is added after B2-5, the net dross of fishing, Pb and Zn is then added, continues heating fusing;
B2-6, material are all after fusing, and heating boiling 2~3 minutes is added refining agent stirring, refines, stands, and slagging-off removes
After slag plus charcoal covers.
Compared with prior art, the active chemical design considerations of Cu alloy material of the invention and restriction content range
The reasons why it is as follows:
Al: significantly improving the strength of materials, tensile strength, yield strength, slightly reduction plasticity, improves alloy flowability and resistance to
Corrosion reduces the scaling loss of Zn.
Fe: refining alloy tissue can be improved the performances such as the strength of materials, hardness, but can equally reduce material plasticity, unsuitable more
Add.
Pb: the Pb of low melting point mutually exists with independent in the alloy, is distributed on the crystal boundary of material, and when machining can make to cut
Bits be in fragmentation shape, can high-speed cutting, obtain smooth finish surface, be effectively improved the cutting ability of brass;The lead to dissociate in material is soft
Particle has lubricating action, can reduce the coefficient of friction of material, the wearability and self-lubricating property of material be improved, as hydraulic
Components materials'use can prevent high temperature sintering.Pb content is no more than 3%, otherwise no longer significantly improves cutting ability, Er Qiexian
Write intensity, hardness and the elongation percentage for reducing brass.
It can be applied in fields such as hydraulic, engineering machinery, automobile, instrument, there is better processing performance, easily when Precision Machining
Reach better accuracy class, while product has excellent wear-resisting, sintering resistance energy.
Ni: thinning microstructure improves the toughness of alloy, but can expand alpha phase zone, reduce hardness.
Si: moving to left β phase region, significantly improves the strength of materials and hardness, improves wearability, corrosion resistance, while increasing copper
The mobility of liquid reduces shrinkage porosite and generates, improves castability, the leakproofness of hydraulic unit can be improved.
Co: can refine crystal grain, improve fatigue of materials performance.
Meanwhile Cu alloy material of the invention passes through the preparation of five yuan of intermediate alloys of Al-Ni-Si-Fe-Co, reduces Gao Rong
Point element fusing point improves melting efficiency, reduces cost.
Specific embodiment
The embodiment of the present invention provides a kind of Cu alloy material, is made of the element of following mass percent: Zn 26~
30%;Al 3.0~4.5%;Fe 0.5~1.3%;Pb 0.5~1.5%;
Ni 2.0~4.0%;Si 0.5~1.5%;Co≤1.0%;Surplus is Cu.
Based on the mass percent of above-mentioned Cu alloy material, also a kind of preparation method of above-mentioned Cu alloy material of the present invention,
Include the following steps:
A, five yuan of intermediate alloys of Al-Ni-Si-Fe-Co are prepared.As an embodiment of the present invention, Al-Ni-Si-Fe-
The mass percent of each element of five yuan of intermediate alloys of Co is Al 42.0%, Ni 30.5%, Si 11.2%, Fe 8.1%, Co
8.2%, it is melted and is formed in furnace by Al, Ni, Si, Fe, Co.
B, coming for five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co is provided according to each element composition mass percent
Material, after heating fusing, refining slagging-off then is warming up to 1100~1150 DEG C, stands, sampling, adjusting component, adjustment element form to
Specified mass percent.
C, adjustment temperature is to 1070~1150 DEG C, horizontal casting at ingot casting, at a temperature of 670~730 DEG C extrusion forming pipe,
Bar, is suitable for the small-size products such as cylinder liner, piston shoes, or adjustment temperature is to 1070~1150 DEG C, horizontal casting at tubing,
Suitable for the large scales heavy wall components such as valve plate.
Specifically, step A includes the following steps:
A1, the supplied materials of Al, Ni, Si, Fe, Co are provided according to each element composition mass percent.
A2, it first puts in part Al, part Ni and the Fe to furnace of whole, heating fusing.Since Al fusing point is low, take the lead in melting,
Thermit reaction (releasing heat) is generated, the fusing of the high-melting-points simple substance such as Ni, Fe is facilitated;Al additional amount should not be excessive simultaneously, keeps away
Exempt from local temperature it is excessively high, increase scaling loss.Ni with respect to for Fe, fusing point is low, scaling loss is low, and batch is limited for the first time, thus it is preferential plus
Fe。
Further, preferably, being added in 1/2 aluminium ingot to furnace, 2/3 nickel block is put around aluminium ingot, is then existed
Iron block is put above.
A3, whole Co, Si and remaining Ni are added.
Further, whole Co and Si is added, heating fusing is added portionwise remaining nickel block and is melted.Wherein, add
After entering whole Co and Si, be allowed in melt agitation with drill rod so as to its rapid melting, and with drill rod check furnace bottom whether there is or not
Encrustation phenomena, if there is then continuing heating fusing.
A4, remaining Al, heating fusing are eventually adding.
A5, in 1300~1400 DEG C of temperature range 20~30min of inside holding, stand, stirring slagging-off;
A6, sampling, adjustment element are formed to specified mass percent.
Specifically, step B includes the following steps:
B1, five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co are provided according to each element composition mass percent
Supplied materials;
B2, five yuan of intermediate alloys of Cu and Al-Ni-Si-Fe-Co are first added, after heating fusing, Zn and Pb is added in slagging-off, is risen
It after temperature fusing, then heats up boiling 2~3 minutes, refines, stand, slagging-off;
B3,1100~1150 DEG C are warming up to, stood, sampling, adjustment element is formed to specified mass percent.
Supplied materials in step B1 further includes crumble and molding foundry returns.The tailing that foundry returns is following process is formed,
It can be the surplus material for being casting continuously to form ingot casting or tubing, sawed-off, mach leftover pieces.
Step B2 includes the following steps:
B2-1, part crumble, refining agent and cosolvent is first added, be rapidly heated fusing, adds Cu and Al-Ni-Si-
Five yuan of intermediate alloys of Fe-Co, heat up melting;
B2-2, crumble is added portionwise, refining agent and part molding foundry returns is added while crumble is added every time.Crumble compares
Fluffy, volume is big, and density is small, can not once be added;The principle to feed every time is that burner hearth is filled, and concrete operations are: bits are first added
Then material is compacted crumble with the molding foundry returns of relatively consolidation, so that furnace charge is compared consolidation as far as possible, melting can be improved
Speed.
B2-3, after all material fusing, refining slagging-off is primary;
B2-4, remaining crumble and part molding foundry returns are continuously added, heat up melting;
Remaining molding foundry returns cooling is added after B2-5, the net dross of fishing, Pb and Zn is then added, continues heating fusing;
B2-6, material are all after fusing, and heating boiling 2~3 minutes is added refining agent stirring, refines, stands, and slagging-off removes
After slag plus charcoal covers.
The embodiment of the present invention also provide it is a kind of as cylinder liner of the above-mentioned Cu alloy material in hydraulic pump or hydraulic motor,
Application on piston shoes, valve plate.
Below by five embodiments, with illustrating Cu alloy material of the invention preparation process.
Embodiment 1
In the present embodiment, Cu alloy material is made of the element of following mass percent:
Zn 26.83%;Al 3.37%;Fe 0.65%;Pb 0.65%;Ni 2.55%;Si 0.79%;
Co 0.43%;Cu 64.73%.
Step 1: preparing five yuan of intermediate alloys of Al-Ni-Si-Fe-Co in middle frequency furnace.Wherein, Al-Ni-Si-Fe-Co
The mass percent of each element of five yuan of intermediate alloys is Al 42.0%, Ni 30.5%, Si 11.2%, Fe 8.1%, Co
8.2%.Specific step is as follows:
1) supplied materials of Al, Ni, Si, Fe, Co are provided according to each element composition mass percent;
2) it is added in 1/2 aluminium ingot to furnace, 2/3 nickel block is put around aluminium ingot, iron block is then put above, heating is molten
Change;
3) whole Co and Si is added, is allowed to stir in melt so as to its rapid melting with drill rod, and checked with drill rod
Whether there is or not encrustation phenomenas for furnace bottom, melt if there is then continuing heating, remaining nickel block is added portionwise and is melted.It needs to infuse when adding nickel block
Meaning prevents from splashing.
4) remaining Al, heating fusing is added;
5) it in 1300 DEG C of temperature range inside holding 20min, stands, stirring slagging-off;
6) it samples, adjustment element is formed to specified mass percent.
Step 2: providing five yuan of Cu, Zn, Pb, Al-Ni-Si-Fe-Co intermediate conjunctions according to each element composition mass percent
The supplied materials of gold, after heating fusing, refining slagging-off then is warming up to 1100 DEG C, stands, sampling, adjusting component, adjustment element form to
Specified mass percent.It specifically includes:
1) five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co, are provided according to each element composition mass percent
Supplied materials, crumble and molding foundry returns;
2), burner hearth is cleaned out, 150Kg or so crumble, refining agent and cosolvent is first added, be rapidly heated fusing, then
Five yuan of intermediate alloys of Cu and Al-Ni-Si-Fe-Co are added, heat up melting;Wherein, cosolvent uses ice crystal;
According to heating melting situation, crumble is added portionwise, reserves 250Kg or so furnace volume, the same of 200Kg crumble is added every time
When add 1Kg refining agent and part molding foundry returns, crumble is pressed into molten soup;Pay attention to observing crumble fusing situation when melting, if
It was found that there is the case where crumble crust to smash material in time, prevents from putting up a bridge or airtight cause to rush furnace explosion;
After all material fusing, refining slagging-off is primary;
Remaining crumble and part molding foundry returns are continuously added, heat up melting, boils 2 minutes or so, reserves 100Kg or so
Form foundry returns cooling;
Remaining molding foundry returns cooling is added after fishing out net dross, Pb and Zn is then added, continues heating fusing;
Material is all after fusing, and heating boiling 2 minutes, addition refining agent stirring is refined, stood, and slagging-off adds wood after slagging-off
Charcoal covering.
3) 1100 DEG C, are warming up to, is stood, sampling, adjustment element is formed to specified mass percent, until each element is in material
Within the scope of management width as defined in material, ingredient is qualified.
Step 3: adjustment temperature is to 1110 DEG C, horizontal casting is at ingot casting, extrusion forming at a temperature of 700 DEG C.
Embodiment 2
In the present embodiment, Cu alloy material is made of the element of following mass percent: Zn 27.95%;Al
3.54%;Fe 0.72%;Pb 0.71%;Ni 2.83%;Si 0.79%;Co 0.55%;Cu 62.91%.
Step 1: preparing five yuan of intermediate alloys of Al-Ni-Si-Fe-Co in middle frequency furnace.Wherein, Al-Ni-Si-Fe-Co
The mass percent of each element of five yuan of intermediate alloys is Al 42.0%, Ni 30.5%, Si 11.2%, Fe 8.1%, Co
8.2%.Specific step is as follows:
1) supplied materials of Al, Ni, Si, Fe, Co are provided according to each element composition mass percent;
2) it is added in 1/2 aluminium ingot to furnace, 2/3 nickel block is put around aluminium ingot, iron block is then put above, heating is molten
Change;
3) whole Co and Si is added, is allowed to stir in melt so as to its rapid melting with drill rod, and checked with drill rod
Whether there is or not encrustation phenomenas for furnace bottom, melt if there is then continuing heating, remaining nickel block is added portionwise and is melted.It needs to infuse when adding nickel block
Meaning prevents from splashing.
4) remaining Al, heating fusing is added;
5) it in 1350 DEG C of temperature range inside holding 25min, stands, stirring slagging-off;
6) it samples, adjustment element is formed to specified mass percent.
Step 2: providing five yuan of Cu, Zn, Pb, Al-Ni-Si-Fe-Co intermediate conjunctions according to each element composition mass percent
The supplied materials of gold, after heating fusing, refining slagging-off then is warming up to 1125 DEG C, stands, sampling, adjusting component, adjustment element form to
Specified mass percent.It specifically includes:
1) five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co, are provided according to each element composition mass percent
Supplied materials, crumble and molding foundry returns;
2), burner hearth is cleaned out, 150Kg or so crumble, refining agent and cosolvent is first added, be rapidly heated fusing, then
Five yuan of intermediate alloys of Cu and Al-Ni-Si-Fe-Co are added, heat up melting;Wherein, cosolvent uses ice crystal;
According to heating melting situation, crumble is added portionwise, reserves 250Kg or so furnace volume, the same of 200Kg crumble is added every time
When add 1Kg refining agent and part molding foundry returns, crumble is pressed into molten soup;Pay attention to observing crumble fusing situation when melting, if
It was found that there is the case where crumble crust to smash material in time, prevents from putting up a bridge or airtight cause to rush furnace explosion;
After all material fusing, refining slagging-off is primary;
Remaining crumble and part molding foundry returns are continuously added, heat up melting, boils 2 minutes or so, reserves 100Kg or so
Form foundry returns cooling;
Remaining molding foundry returns cooling is added after fishing out net dross, Pb and Zn is then added, continues heating fusing;
Material is all after fusing, and heating boiling 2.5 minutes, addition refining agent stirring is refined, stood, and slagging-off adds after slagging-off
Charcoal covering.
3) 1125 DEG C, are warming up to, is stood, sampling, adjustment element is formed to specified mass percent, until each element is in material
Within the scope of management width as defined in material, ingredient is qualified.
Step 3: adjustment temperature is to 1150 DEG C, horizontal casting is at ingot casting, extrusion forming at a temperature of 730 DEG C.
Embodiment 3
In the present embodiment, Cu alloy material is made of the element of following mass percent:
Zn 28.79%;Al 3.95%;Fe 0.85%;Pb1.1%;Ni 2.98%;Si 0.76%;
Co 0.79%;Cu 60.78%.
Step 1: preparing five yuan of intermediate alloys of Al-Ni-Si-Fe-Co in middle frequency furnace.Wherein, Al-Ni-Si-Fe-Co
The mass percent of each element of five yuan of intermediate alloys is Al 42.0%, Ni 30.5%, Si 11.2%, Fe 8.1%, Co
8.2%.Specific step is as follows:
1) supplied materials of Al, Ni, Si, Fe, Co are provided according to each element composition mass percent;
2) it is added in 1/2 aluminium ingot to furnace, 2/3 nickel block is put around aluminium ingot, iron block is then put above, heating is molten
Change;
3) whole Co and Si is added, is allowed to stir in melt so as to its rapid melting with drill rod, and checked with drill rod
Whether there is or not encrustation phenomenas for furnace bottom, melt if there is then continuing heating, remaining nickel block is added portionwise and is melted.It needs to infuse when adding nickel block
Meaning prevents from splashing.
4) remaining Al, heating fusing is added;
5) it in 1400 DEG C of temperature range inside holding 30min, stands, stirring slagging-off;
6) it samples, adjustment element is formed to specified mass percent.
Step 2: providing five yuan of Cu, Zn, Pb, Al-Ni-Si-Fe-Co intermediate conjunctions according to each element composition mass percent
The supplied materials of gold, after heating fusing, refining slagging-off then is warming up to 1150 DEG C, stands, sampling, adjusting component, adjustment element form to
Specified mass percent.It specifically includes:
1) five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co, are provided according to each element composition mass percent
Supplied materials, crumble and molding foundry returns;
2), burner hearth is cleaned out, 150Kg or so crumble, refining agent and cosolvent is first added, be rapidly heated fusing, then
Five yuan of intermediate alloys of Cu and Al-Ni-Si-Fe-Co are added, heat up melting;Wherein, cosolvent uses ice crystal;
According to heating melting situation, crumble is added portionwise, reserves 250Kg or so furnace volume, the same of 200Kg crumble is added every time
When add 1Kg refining agent and part molding foundry returns, crumble is pressed into molten soup;Pay attention to observing crumble fusing situation when melting, if
It was found that there is the case where crumble crust to smash material in time, prevents from putting up a bridge or airtight cause to rush furnace explosion;
After all material fusing, refining slagging-off is primary;
Remaining crumble and part molding foundry returns are continuously added, heat up melting, boils 2 minutes or so, reserves 100Kg or so
Form foundry returns cooling;
Remaining molding foundry returns cooling is added after fishing out net dross, Pb and Zn is then added, continues heating fusing;
Material is all after fusing, and heating boiling 3 minutes, addition refining agent stirring is refined, stood, and slagging-off adds wood after slagging-off
Charcoal covering.
3) 1150 DEG C, are warming up to, is stood, sampling, adjustment element is formed to specified mass percent, until each element is in material
Within the scope of management width as defined in material, ingredient is qualified.
Step 3: adjustment temperature is to 1070 DEG C, horizontal casting is at ingot casting, extrusion forming at a temperature of 730 DEG C.
Embodiment 4
In the present embodiment, Cu alloy material is made of the element of following mass percent:
Zn 26.96%;Al 3.45%;Fe 0.61%;Pb 0.59%;Ni 2.65%;Si 0.69%;
Co 0.56%;Cu 64.49%.
Step 1: preparing five yuan of intermediate alloys of Al-Ni-Si-Fe-Co in middle frequency furnace.Wherein, Al-Ni-Si-Fe-Co
The mass percent of each element of five yuan of intermediate alloys is Al 42.0%, Ni 30.5%, Si 11.2%, Fe 8.1%, Co
8.2%.Specific step is as follows:
1) supplied materials of Al, Ni, Si, Fe, Co are provided according to each element composition mass percent;
2) it first puts in part Al, part Ni and the Fe to furnace of whole, heating fusing;
3) whole Co and Si is added, is allowed to stir in melt so as to its rapid melting with drill rod, and checked with drill rod
Whether there is or not encrustation phenomenas for furnace bottom, melt if there is then continuing heating, remaining nickel block is added portionwise and is melted
4) remaining Al, heating fusing is added;
5) it in 1400 DEG C of temperature range inside holding 30min, stands, stirring slagging-off;
6) it samples, adjustment element is formed to specified mass percent.
Step 2: providing five yuan of Cu, Zn, Pb, Al-Ni-Si-Fe-Co intermediate conjunctions according to each element composition mass percent
The supplied materials of gold, after heating fusing, refining slagging-off then is warming up to 1150 DEG C, stands, sampling, adjusting component, adjustment element form to
Specified mass percent.It specifically includes:
1) five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co, are provided according to each element composition mass percent
Supplied materials, crumble and molding foundry returns;
2) part crumble, refining agent and cosolvent, is first added, be rapidly heated fusing, adds Cu and Al-Ni-Si-Fe-
Five yuan of intermediate alloys of Co, heat up melting;
According to heating melting situation, crumble is added portionwise, refining agent and part is added to form back while crumble is added every time
Furnace charge;
After all material fusing, refining slagging-off is primary;
Remaining crumble and part molding foundry returns are continuously added, heat up melting;
Remaining molding foundry returns cooling is added after fishing out net dross, Pb and Zn is then added, continues heating fusing;
Material is all after fusing, and heating boiling 3 minutes, addition refining agent stirring is refined, stood, and slagging-off adds wood after slagging-off
Charcoal covering.
3) 1150 DEG C, are warming up to, is stood, sampling, adjustment element is formed to specified mass percent.
Step 3: adjustment temperature is to 1150 DEG C, horizontal casting is at tubing.
Embodiment 5
In the present embodiment, Cu alloy material is made of the element of following mass percent: Zn 28.86%;Al
3.88%;Fe 0.87%;Pb 0.99%;Ni 2.85%;Si 0.82%;Co 0.83%;Cu 60.9%.
Step 1: preparing five yuan of intermediate alloys of Al-Ni-Si-Fe-Co in middle frequency furnace.Wherein, Al-Ni-Si-Fe-Co
The mass percent of each element of five yuan of intermediate alloys is Al 42.0%, Ni30.5%, Si 11.2%, Fe 8.1%, Co
8.2%.Specific step is as follows:
1) supplied materials of Al, Ni, Si, Fe, Co are provided according to each element composition mass percent;
2) it first puts in part Al, part Ni and the Fe to furnace of whole, heating fusing;
3) whole Co and Si is added, is allowed to stir in melt so as to its rapid melting with drill rod, and checked with drill rod
Whether there is or not encrustation phenomenas for furnace bottom, melt if there is then continuing heating, remaining nickel block is added portionwise and is melted
4) remaining Al, heating fusing is added;
5) it in 1400 DEG C of temperature range inside holding 30min, stands, stirring slagging-off;
6) it samples, adjustment element is formed to specified mass percent.
Step 2: providing five yuan of Cu, Zn, Pb, Al-Ni-Si-Fe-Co intermediate conjunctions according to each element composition mass percent
The supplied materials of gold, after heating fusing, refining slagging-off then is warming up to 1150 DEG C, stands, sampling, adjusting component, adjustment element form to
Specified mass percent.It specifically includes:
1) five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co, are provided according to each element composition mass percent
Supplied materials, crumble and molding foundry returns;
2) part crumble, refining agent and cosolvent, is first added, be rapidly heated fusing, adds Cu and Al-Ni-Si-Fe-
Five yuan of intermediate alloys of Co, heat up melting;
According to heating melting situation, crumble is added portionwise, refining agent and part is added to form back while crumble is added every time
Furnace charge;
After all material fusing, refining slagging-off is primary;
Remaining crumble and part molding foundry returns are continuously added, heat up melting;
Remaining molding foundry returns cooling is added after fishing out net dross, Pb and Zn is then added, continues heating fusing;
Material is all after fusing, and heating boiling 3 minutes, addition refining agent stirring is refined, stood, and slagging-off adds wood after slagging-off
Charcoal covering.
3) 1150 DEG C, are warming up to, is stood, sampling, adjustment element is formed to specified mass percent.
Step 3: adjustment temperature is to 1150 DEG C, horizontal casting is at tubing.
The Cu alloy material that embodiment 1,2,3,4,5 is prepared is tried in GB/T230.1-2009, HRB1.5875/100
Hardness test is carried out under the conditions of testing, test result is shown in Table 1.
Table 1
Under GB/T 228B experimental condition, mechanical property test, examination are carried out using GB/T 228.1-2010 test method
It tests and the results are shown in Table 2.
Table 2
Reciprocatingly slide according to ASTM G133 " ball printed line and wear standard test method " and ASTM G99 " pin disk device
Carry out the standard test method that abrasion is played ", wear-resistant and sintering resistance energy test result such as table 3:
Table 3
By Tables 1 and 2 it is found that Cu alloy material hardness provided by the invention can reach HRB82.7~HRB92.9, tension
Intensity can reach 632MPa~736MPa, and yield strength can reach 378MPa~469MPa, and elongation percentage can reach 8.5%~
18.5%, wherein embodiment 1,2,3 is continuous casting+extrusion process, is applied on cylinder liner, piston shoes, and embodiment 4,5 is continuous casting work
Skill is applied on valve plate, elongation percentage difference, but is suitable for respective operating condition.
As shown in Table 3, Cu alloy material provided by the invention is when oil-free, and according to the experimental condition of setting, PV value is reachable
To 42.8~45N/mm2*m/s, when there is oil, PV value can reach 61.7~65.3N/mm2*m/s;In setting load and PV value etc.
Under various experiment conditions, Wear track depth is 0.19~0.33mm, coefficient of friction 0.087~0.092.It is verified through bench test, it is complete
High-pressure oil pump can be met entirely, high-speed motor operating condition uses needs.
Those skilled in the art can carry out various modifications to the embodiment of the present invention and modification, if these modifications and change
For type within the scope of the claims in the present invention and its equivalent technologies, then these modifications and variations are also in protection scope of the present invention
Within.
The prior art that the content being not described in detail in specification is known to the skilled person.
Claims (10)
1. a kind of Cu alloy material, it is characterised in that: be made of the element of following mass percent:
2. a kind of preparation method of Cu alloy material as described in claim 1, which comprises the steps of:
A, five yuan of intermediate alloys of Al-Ni-Si-Fe-Co are prepared;
B, the supplied materials of five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co is provided according to each element composition mass percent,
After heating fusing, refining slagging-off, then 1100~1150 DEG C are warming up to, it stands, sampling, adjusting component, adjustment element is formed to finger
Determine mass percent;
C, adjustment temperature is to 1070~1150 DEG C, and horizontal casting is at ingot casting, extrusion forming at a temperature of 670~730 DEG C;Or adjustment
Temperature is to 1070~1150 DEG C, and horizontal casting is at tubing.
3. the preparation method of Cu alloy material as claimed in claim 2, which is characterized in that step A includes the following steps:
A1, the supplied materials of Al, Ni, Si, Fe, Co are provided according to each element composition mass percent;
A2, it first puts in part Al, part Ni and the Fe to furnace of whole, heating fusing;
A3, whole Co, Si and remaining Ni are added;
A4, remaining Al, heating fusing are eventually adding.
4. the preparation method of Cu alloy material as claimed in claim 2, it is characterised in that: in step A, the Al-Ni-Si-
The mass percent of each element of five yuan of intermediate alloys of Fe-Co is Al 42.0%, Ni 30.5%, Si 11.2%, Fe
8.1%, Co 8.2%.
5. the preparation method of Cu alloy material as claimed in claim 4, which is characterized in that step A3 includes: that whole is added
Co and Si, heating fusing, is added portionwise remaining nickel block and is melted.
6. the preparation method of Cu alloy material as claimed in claim 5, it is characterised in that: in step A3, whole Co is added
It after Si, is allowed to stir in melt so as to its rapid melting with drill rod, and whether there is or not encrustation phenomenas with drill rod inspection furnace bottom, such as
Fruit has, and continues heating fusing.
7. the preparation method of Cu alloy material as claimed in claim 3, which is characterized in that further include as follows after step A4
Step:
A5, in 1300~1400 DEG C of temperature range 20~30min of inside holding, stand, stirring slagging-off;
A6, sampling, adjustment element are formed to specified mass percent.
8. the preparation method of Cu alloy material as claimed in claim 2, which is characterized in that step B includes the following steps:
B1, the supplied materials of five yuan of intermediate alloys of Cu, Zn, Pb, Al-Ni-Si-Fe-Co is provided according to each element composition mass percent;
B2, five yuan of intermediate alloys of Cu and Al-Ni-Si-Fe-Co are first added, after heating fusing, Zn and Pb is added in slagging-off, and heating is molten
It after change, then heats up boiling 2~3 minutes, refines, stand, slagging-off;
B3,1100~1150 DEG C are warming up to, stood, sampling, adjustment element is formed to specified mass percent.
9. the preparation method of Cu alloy material as claimed in claim 8, which is characterized in that the supplied materials in step B1 further includes bits
Material and molding foundry returns, the step B2 include the following steps:
B2-1, part crumble, refining agent and cosolvent is first added, be rapidly heated fusing, adds Cu and Al-Ni-Si-Fe-Co
Five yuan of intermediate alloys, heat up melting;
B2-2, crumble is added portionwise, refining agent and part molding foundry returns is added while crumble is added every time;
B2-3, after all material fusing, refining slagging-off is primary;
B2-4, remaining crumble and part molding foundry returns are continuously added, heat up melting;
Remaining molding foundry returns cooling is added after B2-5, the net dross of fishing, Pb and Zn is then added, continues heating fusing;
B2-6, material are all after fusing, and heating boiling 2~3 minutes is added refining agent stirring, refines, stands, slagging-off, after slagging-off
Charcoal is added to cover.
10. cylinder liner, piston shoes, flow of a kind of Cu alloy material as described in claim 1 in hydraulic pump or hydraulic motor
Application on disk.
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CN113215437A (en) * | 2021-05-04 | 2021-08-06 | 宁波华成阀门有限公司 | Copper material for valve and preparation method of valve |
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JPS5776143A (en) * | 1980-10-30 | 1982-05-13 | Mitsubishi Metal Corp | Mn-si-type intermetallic compound-dispersed high-strength brass having toughness and abrasion-resistance |
SU1812812A1 (en) * | 1990-06-11 | 1996-05-27 | Ревдинский завод по обработке цветных металлов | Alloy based on copper |
CN105018783A (en) * | 2015-07-24 | 2015-11-04 | 武汉泛洲中越合金有限公司 | Copper alloy matrix material and preparation method thereof |
CN105980586A (en) * | 2014-02-04 | 2016-09-28 | 奥托福克斯两合公司 | Lubricant-compatible copper alloy |
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JPS5776143A (en) * | 1980-10-30 | 1982-05-13 | Mitsubishi Metal Corp | Mn-si-type intermetallic compound-dispersed high-strength brass having toughness and abrasion-resistance |
SU1812812A1 (en) * | 1990-06-11 | 1996-05-27 | Ревдинский завод по обработке цветных металлов | Alloy based on copper |
CN105980586A (en) * | 2014-02-04 | 2016-09-28 | 奥托福克斯两合公司 | Lubricant-compatible copper alloy |
CN105018783A (en) * | 2015-07-24 | 2015-11-04 | 武汉泛洲中越合金有限公司 | Copper alloy matrix material and preparation method thereof |
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