CN108004432A - Containing strontium and sodium high abrasion high heat conduction kirsite and its processing technology - Google Patents
Containing strontium and sodium high abrasion high heat conduction kirsite and its processing technology Download PDFInfo
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- CN108004432A CN108004432A CN201711400964.5A CN201711400964A CN108004432A CN 108004432 A CN108004432 A CN 108004432A CN 201711400964 A CN201711400964 A CN 201711400964A CN 108004432 A CN108004432 A CN 108004432A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/165—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon of zinc or cadmium or alloys based thereon
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- Continuous Casting (AREA)
Abstract
The invention discloses one kind to contain strontium and sodium high abrasion high heat conduction kirsite.By weight percentage, alloy composition is：Na:0.8‑1.2wt.%,Sr:0.2‑0.3wt.%,In:4.5‑6.3wt.%,Zr:0.8‑1.2wt.%,Si:0.4‑0.8wt.%,Sn:2.4‑3.6wt.%,Yb:0.2‑0.5wt.%,Nd:0.1‑0.2wt.%,S:0.8 1.0wt.%, surplus are zinc.Relative to traditional kirsite, which has excellent mechanical property and heat conductivility.
Description
Technical field
The present invention relates to technical field of alloy, specifically, is related to a kind of kirsite.
Background technology
Kirsite has good plastic deformation ability and casting fluidity, because its specific stiffness and specific strength are high, fusing point is low,
The advantages that of low cost, easily processed into type is manufactured, is widely used in aerospace, weaponry, petrochemical industry, machinery
The industry-by-industries such as manufacture.Kirsite has many good qualities：Good casting property, can complex-shaped, thin-walled precision part, casting with die casting
Part surface is smooth.It can be surface-treated：Plating, spraying, spray painting, polishing, grinding etc..Fusing is stale-proof with not inhaling iron during die casting
Die mould is lost, not sticking to mould.In mechanical properties, kirsite has higher intensity and wear resistance, and shock resistance plasticity
The property of deformability and easy processing, is all that other materials are irreplaceable.Therefore kirsite be widely used in thin-wall product and
Die-cast product that is high to surface smoothness requirements, need to electroplating.
With the fast development of Chinese economy, requirement of the industry such as the energy, traffic, electric power to Zn-base alloy is increasingly
It is high.Zn-base alloy is widely used in elevator traction machine, forging equipment, textile machine, Machine Manufacture, building material machinery, metallurgy
The industries such as mining machinery, food machinery, printing machinery, engineering machinery, and the turbine especially suitable for middle low speed, axle sleeve, bearing,
The parts such as sliding block, nut.People constantly most seek cost of alloy, and the best of breed of material property and processing performance meets increasingly
The requirement of lifting.At present, zinc alloy material has been carried out by the effort of decades in developed countries such as America and Europe, Japan more
The innovation in orientation.The required high-end kirsite in China is also more from the import of the developed country such as Germany, Sweden.
The mechanical property and heat transfer property of oneself the external new zinc alloy material through exploitation can't be satisfactory, it is impossible to complete
The requirement of full up foot modern industry.Exploitation, which possesses property kirsite, two methods, and one kind is to add alloying element to pass through
Matrix is strengthened in solution strengthening, and another kind is mutually to form Zinc-base compounded material by adding second-phase strength.Strontium and sodium are as conjunction
Alloying element adds in kirsite the elastic performance and heat conductivility that can greatly improve kirsite.
China's Zn content accounts for the 46% of the world, and resource is extremely abundant, and copper, tin are poor, and research and development have high intensity, resist
The good kirsite of burn into rub resistance, damping capacity, possesses important instead of development of the expensive signal bronze to human society
Meaning.Meanwhile China's alkali and alkaline earth metal ions resource not only A wide selection of colours and designs, rich reserves, and quality is excellent, distribution is wide,
It is easy to exploit, this develops new zinc alloy material for China and provides solid material base.With the quick hair of China's industry
Exhibition, develop the kirsite of novel high wear-resistant and high heat conduction has become inevitable.
It is that melt easily aoxidizes burning in smelting process containing strontium and the characteristics of maximum sodium kirsite, generates loose oxide-film
And nitride film.This unsound bath surface compound film cannot prevent the diffusion of oxygen and nitrogen to bath surface, cause
The continuous oxidation and consumption of strontium and sodium in alloy melt in the fusion process.Therefore, one in the smelting containing strontium and sodium kirsite
As alloy preparation carried out using the method for argon gas protection.There is high expensive, casting to some extent to be also easy to produce for this method
The shortcomings of flux is mingled with, equipment is complicated.Therefore it is restricted the development containing strontium and sodium kirsite, exploitation and application.Thus
It is being badly in need of industry and national defence of the large-scale use containing strontium and sodium kirsite, always there is existing yield is few, technique is cumbersome,
The present situation that the urgent needs such as cost height overcome.
Being reached by the method for alloying prevents the oxidation containing strontium and sodium kirsite alloy melt in smelting process, is solution
Certainly one of developing direction of the alloy smelting problem.Alloying ignition-proof and prevent that the mechanism that strontium and sodium volatilize in fusion process from being
Alloying element is added in the alloy to influence the thermodynamics and dynamics process of alloy oxidation, and being formed in alloy surface has protection
The dense oxidation film and nitride film of effect, achieve the purpose that to prevent alloy vigorous oxidation.Compared with argon gas is protected, alloying ignition-proof
Flux can be eliminated to be mingled with, improve the mechanical property of alloy.In addition, the content that various alloying elements are balanced in kirsite may be used also
So that final zinc alloy product will also possess gratifying mechanical strength and heat conductivility at the same time.The letter of smelting processing method
Single, production cost is reduced to equipment requirement than relatively low.So that alloy service life is further improved, easy to industrialize
Large-scale application.
The content of the invention
Present invention aims to overcome that the deficiencies in the prior art, there is provided one kind can under 450-500 degree atmospheric conditions into
Row melting contains strontium and sodium high abrasion high heat conduction kirsite and its processing technology.And finally produced in the alloy of this temperature range melting
Product have the high intensity possessed required for Zn-base alloy, high heat conduction and excellent wear-resisting property.This method also has production
Cost is low, the characteristics of easy to mass produce.
To achieve these goals, the present invention adopts the following technical scheme that：
One kind contains strontium and sodium high abrasion high heat conduction kirsite.By weight percentage, the composition of alloy is：Na:0.8-
1.2wt.%, Sr:0.2-0.3wt.%,In:4.5-6.3wt.%,Zr:0.8-1.2wt.%,Si:0.4-0.8wt.%,Sn:2.4-
3.6wt.%,Yb:0.2-0.5wt.%,Nd:0.1-0.2wt.%,S:0.8-1.0wt.%, surplus are zinc.The kirsite is in melting
Cheng Yinwei volatilizees and the weight that forms the reason such as clinker and lose is in 1.0-3.0wt.% or so.
The preparation method of above-mentioned kirsite, includes the following steps：As above the raw material matched is added under atmosphere protection
In electric induction furnace, and use silicon carbide crucible；Sensing heating forms alloy solution, and fill using galvanomagnetic-effect to 450-500 degree
Divide stirring 10 minutes or so；Alloy liquid is kept the temperature 10 minutes and be poured onto in the same level equipment of heat top in 450-500 degree and is partly connected
Continuous casting, it is 10-12m/min that ingot casting, which moves down speed,.Ingot casting is subjected to deformation process at room temperature, amount is 8- under every time rolling
10%；Every 3 passes need to carry out an intermediate heat-treatment to eliminate processing hardening, and technique is：150 degree, 2.6 hours；Roll
Final Heat Treatment Process after system is：Vacuum solid solution handle 260 degree, 3.4 it is small when；Vacuum aging handle 150 degree, 2.1 it is small when.
Compared with prior art, the present invention has the advantages that：
（1）Patent of the present invention can't fully meet the present situation of existing demand for the intensity and heat conductivility of current kirsite
Provide a kind of novel materialogy solution.Come the element species in preferred alloy and contained by novel materialogy method
Amount, the shortcomings that products obtained therefrom can not only substantially reduce alloying element usage amount, can also obtain extraordinary mechanical property and
Heat conductivility, and excellent yield of alloy can be obtained.
（2）During alloy melting, melt has static (insulation of melt and standing) and dynamic（The stirring of melt）Two kinds of shapes
Formula.What this patent proposed has extremely excellent fire resistance in the quiescent state containing strontium and sodium high abrasion high heat conduction kirsite, can be with
Reach and stand 5 hours without obvious burning under atmospheric environment in 450-500 temperature ranges.In dynamic process,
Such as liquid alloy is stirred, is blown etc. during melt treatment, after its skin covering of the surface is because being vigorously stirred destroyed, remain to
Rapid regeneration, successfully hinders the burning of alloy.Gained alloy surface oxide-film and nitride film have extraordinary plasticity and viscosity,
Alloy surface intactly can be sprawled and covered, is effectively stopped in air intrusion aluminium alloy.And the kirsite is in fusion process
Because volatilization and the weight for forming the reasons such as clinker and losing are less than 3.0wt.% or so.
（3）The kirsite is refined crystal grain after strontium and sodium is added.In addition, there is the alloy low liquid-solid phase to coagulate
Gu temperature range, hot cracking tendency is big when can solve to cast, the technical barriers such as the empty and loose obvious product yield rate of casting is low.
Smelting processing method is simple, and production cost is reduced to equipment requirement than relatively low.While ensureing to possess anti-flammability, also make
Obtain alloy service life to be further improved, easy to industrialize large-scale application.
（4）The material has the room-temperature mechanical property higher than traditional zinc-containing alloy：Tensile strength is 580-720MPa；Pass
System Tensile strength is 400-420MPa.Possesses excellent crocking resistance.Under the conditions of sufficient lubrication, friction coefficient is
0.024-0.035, is not 0.054-0.062 under lubricating condition.Wearability increases substantially, and increases 60- than common kirsite
80%.Bite-resistant ability with higher, can bear the load of higher.It is also equipped with excellent heat conductivility, heat transfer coefficient 130-
140W/m·K.And the heat transfer coefficient of traditional kirsite is less than 80 W/mK.In addition, density of the material than traditional zinc-containing alloy
Reduce 2-3% or so.
Embodiment
Embodiment 1
There are one kind 450 degree of meltings to contain strontium and sodium high abrasion high heat conduction kirsite.By weight percentage, the chemical composition of alloy
For：Na:1.1wt.%,Sr:0.3wt.%,In:5.2wt.%,Zr:0.9wt.%,Si:0.5wt.%,Sn:2.8wt.%,Yb:
0.4wt.%,Nd:0.1wt.%,S:0.9wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to greatly
In electric induction furnace under compression ring border, and use silicon carbide crucible.Sensing heating forms alloy solution, and utilize electromagnetism to 450 degree
Effect is sufficiently stirred 10 minutes or so.Alloy liquid is poured onto in the same level equipment of heat top for 10 minutes in 450 degree of insulations and carries out half
Continuously casting, it is 12m/min that ingot casting, which moves down speed,.Ingot casting is subjected to deformation process at room temperature, amount is 9% under every time rolling；
Every 3 passes need to carry out an intermediate heat-treatment to eliminate processing hardening, and technique is：150 degree, 2.6 hours；After rolling
Final Heat Treatment Process be：Vacuum solid solution handle 260 degree, 3.4 it is small when；Vacuum aging handle 150 degree, 2.1 it is small when.The alloy
It is big can to solve hot cracking tendency during casting, the technical barriers such as the empty and loose obvious product yield rate of casting is low.Smelting processing side
Method is simple, and production cost is than relatively low.While ensureing to possess anti-flammability, also so that alloy service life has and further carries
Height, easy to industrialize large-scale application.The material has the room-temperature mechanical property higher than traditional zinc-containing alloy：Tensile strength is
682MPa；Traditional material tensile strength is 400-420MPa.Possesses excellent crocking resistance.Under the conditions of sufficient lubrication, rub
It is 0.029 to wipe coefficient, is not 0.058 under lubricating condition.Wearability increases substantially, than common kirsite increase by 64%.With more
High bite-resistant ability, can bear the load of higher.It is also equipped with excellent heat conductivility, heat transfer coefficient 132W/mK.And pass
The heat transfer coefficient of system kirsite is less than 80 W/mK.In addition, the material reduces by 2.5% or so than the density of traditional zinc-containing alloy.
The weight that the kirsite loses in fusion process because of the reason such as volatilization and formation clinker is in 1.6wt.% or so.
Embodiment 2
There are one kind 480 degree of meltings to contain strontium and sodium high abrasion high heat conduction kirsite.By weight percentage, the chemical composition of alloy
For：Na:1.0wt.%,Sr:0.2wt.%,In:4.8wt.%,Zr:0.9wt.%,Si:0.5wt.%,Sn:2.9wt.%,Yb:
0.4wt.%,Nd:0.1wt.%,S:0.9wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to greatly
In electric induction furnace under compression ring border, and use silicon carbide crucible.Sensing heating forms alloy solution, and utilize electromagnetism to 480 degree
Effect is sufficiently stirred 10 minutes or so.Alloy liquid is poured onto in the same level equipment of heat top for 10 minutes in 480 degree of insulations and carries out half
Continuously casting, it is 12m/min that ingot casting, which moves down speed,.Ingot casting is subjected to deformation process at room temperature, amount is 9% under every time rolling；
Every 3 passes need to carry out an intermediate heat-treatment to eliminate processing hardening, and technique is：150 degree, 2.6 hours；After rolling
Final Heat Treatment Process be：Vacuum solid solution handle 260 degree, 3.4 it is small when；Vacuum aging handle 150 degree, 2.1 it is small when.The alloy
It is big can to solve hot cracking tendency during casting, the technical barriers such as the empty and loose obvious product yield rate of casting is low.Smelting processing side
Method is simple, and production cost is than relatively low.While ensureing to possess anti-flammability, also so that alloy service life has and further carries
Height, easy to industrialize large-scale application.The material has the room-temperature mechanical property higher than traditional zinc-containing alloy：Tensile strength is
625MPa；Traditional material tensile strength is 400-420MPa.Possesses excellent crocking resistance.Under the conditions of sufficient lubrication, rub
It is 0.029 to wipe coefficient, is not 0.057 under lubricating condition.Wearability increases substantially, than common kirsite increase by 72%.With more
High bite-resistant ability, can bear the load of higher.It is also equipped with excellent heat conductivility, heat transfer coefficient 136W/mK.And pass
The heat transfer coefficient of system kirsite is less than 80 W/mK.In addition, the material reduces by 2.5% or so than the density of traditional zinc-containing alloy.
The weight that the kirsite loses in fusion process because of the reason such as volatilization and formation clinker is in 1.9wt.% or so.
Embodiment 3
There are one kind 490 degree of meltings to contain strontium and sodium high abrasion high heat conduction kirsite.By weight percentage, the chemical composition of alloy
For：Na:1.1wt.%,Sr:0.2wt.%,In:6.2wt.%,Zr:1.1wt.%,Si:0.7wt.%,Sn:2.8wt.%,Yb:
0.3wt.%,Nd:0.1wt.%,S:0.8wt.%, surplus are zinc.The preparation method of alloy：As above the raw material matched is added to greatly
In electric induction furnace under compression ring border, and use silicon carbide crucible.Sensing heating forms alloy solution, and utilize electromagnetism to 490 degree
Effect is sufficiently stirred 10 minutes or so.Alloy liquid is poured onto in the same level equipment of heat top for 10 minutes in 490 degree of insulations and carries out half
Continuously casting, it is 12m/min that ingot casting, which moves down speed,.Ingot casting is subjected to deformation process at room temperature, amount is 8% under every time rolling；
Every 3 passes need to carry out an intermediate heat-treatment to eliminate processing hardening, and technique is：150 degree, 2.6 hours；After rolling
Final Heat Treatment Process be：Vacuum solid solution handle 260 degree, 3.4 it is small when；Vacuum aging handle 150 degree, 2.1 it is small when.The alloy
It is big can to solve hot cracking tendency during casting, the technical barriers such as the empty and loose obvious product yield rate of casting is low.Smelting processing side
Method is simple, and production cost is than relatively low.While ensureing to possess anti-flammability, also so that alloy service life has and further carries
Height, easy to industrialize large-scale application.The material has the room-temperature mechanical property higher than traditional zinc-containing alloy：Tensile strength is
652MPa；Traditional material tensile strength is 400-420MPa.Possesses excellent crocking resistance.Under the conditions of sufficient lubrication, rub
It is 0.031 to wipe coefficient, is not 0.058 under lubricating condition.Wearability increases substantially, than common kirsite increase by 72%.With more
High bite-resistant ability, can bear the load of higher.It is also equipped with excellent heat conductivility, heat transfer coefficient 137W/mK.And pass
The heat transfer coefficient of system kirsite is less than 80 W/mK.In addition, the material reduces by 2.4% or so than the density of traditional zinc-containing alloy.
The weight that the kirsite loses in fusion process because of the reason such as volatilization and formation clinker is in 1.7wt.% or so.
Claims (3)
1. one kind contains strontium and sodium high abrasion high heat conduction kirsite, it is characterised in that by weight percentage, the chemical composition of alloy
For：Na:0.8-1.2wt.%,Sr:0.2-0.3wt.%,In:4.5-6.3wt.%,Zr:0.8-1.2wt.%,Si:0.4-
0.8wt.%,Sn:2.4-3.6wt.%,Yb:0.2-0.5wt.%,Nd:0.1-0.2wt.%,S:0.8-1.0wt.%, surplus are zinc.
2. contain strontium and sodium high abrasion high heat conduction kirsite according to claim 1, it is characterised in that the preparation method bag of alloy
Containing following steps：As above the raw material matched is added in the electric induction furnace under atmosphere protection, and uses silicon carbide crucible；Sensing
450-500 degree is heated to, forms alloy solution, and be sufficiently stirred 10 minutes or so using galvanomagnetic-effect；Alloy liquid is existed
450-500 degree keeps the temperature 10 minutes and is poured onto progress semi-continuous casting in the same level equipment of heat top, and it is 10-12m/ that ingot casting, which moves down speed,
min。
3. contain strontium and sodium high abrasion high heat conduction kirsite according to claim 1, it is characterised in that include following procedure of processing：
Ingot casting is subjected to deformation process at room temperature, amount is 8-10% under every time rolling；Every 3 passes need to carry out among once
Heat treatment is hardened to eliminate processing, and technique is：150 degree, 2.6 hours；Final Heat Treatment Process after rolling is：Vacuum solid solution
Processing 260 degree, 3.4 it is small when；Vacuum aging handle 150 degree, 2.1 it is small when.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400964.5A CN108004432A (en) | 2017-12-22 | 2017-12-22 | Containing strontium and sodium high abrasion high heat conduction kirsite and its processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400964.5A CN108004432A (en) | 2017-12-22 | 2017-12-22 | Containing strontium and sodium high abrasion high heat conduction kirsite and its processing technology |
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| Publication Number | Publication Date |
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| CN108004432A true CN108004432A (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711400964.5A Withdrawn CN108004432A (en) | 2017-12-22 | 2017-12-22 | Containing strontium and sodium high abrasion high heat conduction kirsite and its processing technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128064A (en) * | 2018-09-21 | 2019-01-04 | 北京科技大学 | A kind of biodegradable Zn-Na system kirsite and preparation method thereof |
-
2017
- 2017-12-22 CN CN201711400964.5A patent/CN108004432A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128064A (en) * | 2018-09-21 | 2019-01-04 | 北京科技大学 | A kind of biodegradable Zn-Na system kirsite and preparation method thereof |
| CN109128064B (en) * | 2018-09-21 | 2020-04-28 | 北京科技大学 | Biodegradable Zn-Na series zinc alloy and preparation method thereof |
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Application publication date: 20180508 |
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