CN107653408A - A kind of almag ingot casting and preparation method thereof - Google Patents
A kind of almag ingot casting and preparation method thereof Download PDFInfo
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- CN107653408A CN107653408A CN201710847162.2A CN201710847162A CN107653408A CN 107653408 A CN107653408 A CN 107653408A CN 201710847162 A CN201710847162 A CN 201710847162A CN 107653408 A CN107653408 A CN 107653408A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium 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
- C22C1/10—Alloys containing non-metals
- C22C1/1005—Pretreatment of the non-metallic additives
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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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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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
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
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Abstract
The invention discloses a kind of almag ingot casting and preparation method thereof, the almag ingot casting includes the raw material of following mass percent：Graphene composite material 1.2 2.0%, aluminium 3.8 5.2%, zinc 0.6 0.9%, manganese 0.2 0.4%, Al Ti C B intermediate alloys 0.05 0.15%, inevitable impurity≤0.05%, surplus is magnesium.The preparation method of the almag ingot casting includes smelting technology and Technology for Heating Processing, and its smelting technology includes weighing and baking material, melting, refining and standing, casting, and Technology for Heating Processing includes solution treatment and Ageing Treatment.After the almag ingot casting of gained of the invention is by heat treatment, the corrosion-resistant and mechanical performance of alloy cast ingot can be effectively improved, and crystal grain refinement is uniform in alloy cast ingot tissue, so as to effectively raise the combination property of alloy.
Description
Technical field
The invention belongs to alloy field, and in particular to a kind of almag ingot casting and preparation method thereof.
Background technology
Magnesium alloy is most light structural metallic materials, and its specific strength, specific stiffness are very high, is closed than modulus of elasticity and high-strength aluminium
It is golden, steel alloy roughly the same, while there is good damping capacity.Thus this can be given full play of using magnesium alloy materials
Material effectiveness is good, weight is small, cushioning ability is strong, is easy to the characteristics of shaping, and up to now, magnesium alloy materials exist
The field such as aerospace science field and automobile making has a wide range of applications, with the development of material technology, magnesium alloy materials
Tool must have more wide application prospect and use value.
In these years as the increasingly raising of the China Auto Market level of consumption, the recoverable amount of Chinese automobile have significantly
Lifting, and magnesium alloy use can effectively reduce the total quality of automobile on automobile making material, lift the property of automobile
Can, there are energy-conserving and environment-protective, this has also enlivened the development in magnesium alloy market, in addition, in non-ferrous metal industry, magnesium alloy
It as sub-industry, played an important role, can also be carried by manufacturing industry upgrading in the evolution of Chinese manufacturing
Rise competitiveness.Magnesium alloy work industry is a kind of industry of material intensive type, and it is had a great influence by technical factor, therefore casts magnesium and close
Development of the research of technology for gold for magnesium alloy industry has great importance.
But magnesium alloy also exposes the shortcomings that more in use, for example, the toughness of magnesium alloy and plasticity compared with
Difference, the performance showed at high temperature is bad, and corrosion resistance is not also strong, and these shortcomings limit the use of magnesium alloy, are to carry
The intensity of high magnesium alloy, corrosion resistance etc. are the main contents of current magnesium alloy technical research, and the present invention uses rare earth oxide
The graphene enhancing almag of modification, then Al-Ti-C-B intermediate alloys are added, not only can may be used also with thinning microstructure internal structure
To improve the decay resistance of alloy so that the alloy material combination property prepared is preferable.
The content of the invention
In view of object above, the invention discloses a kind of almag ingot casting and preparation method thereof, by adding rare earth oxygen
The graphene and intermediate alloy of compound modification so that the decay resistance of the alloy of preparation and mechanical performance etc. all make moderate progress.
To achieve these goals, the technical solution adopted by the present invention is：A kind of almag ingot casting, by following quality hundred
Divide the raw material composition of ratio：Graphene composite material 1.2-2.0%, aluminium 3.8-5.2%, zinc 0.6-0.9%, manganese 0.2-0.4%,
Al-Ti-C-B intermediate alloys 0.05-0.15%, inevitable impurity≤0.05%, surplus are magnesium；Wherein, graphene is compound
Material is graphene/samarium oxide composite, and its preparation process is：
A) graphene oxide is handled：Graphene oxide powder is scattered in deionized water, and it is 1- to be configured to mass concentration
1.5mg/mL graphene oxide water solution, then using the ultrasonic cleaner ultrasound 25-30min that power is 60-100W, obtain
To fully decentralized graphene oxide suspension, wherein, the temperature for adjusting ultrasonic cleaner is 20-25 DEG C；
B) preparation of graphene/samarium oxide composite：Add into the graphene oxide suspension obtained by step a)
Enter appropriate samaric nitrate and continue ultrasonic 30-40min, flow back 20-24h at a temperature of being subsequently placed in 100-105 DEG C, and backflow cools after terminating
Sodium borohydride is added to 60-70 DEG C to continue to react 3-4h, well mixed suspension system is carried out vacuum after terminating and taken out by question response
Filter, washing, vacuum drying treatment, are finally placed in 550-600 DEG C of temperature lower calcination 5-8h, it is compound to obtain graphene/samarium oxide again
Material；Wherein, the mass ratio of graphene oxide powder, samaric nitrate and sodium borohydride is 1:(0.2-0.4):10.
Wherein, the advantages of graphene/samarium oxide composite combines graphene and rare earth oxide, both possesses graphene
Enhancing, toughening effect to alloy, also possess the inhibition that rare earth oxide recrystallizes to alloy in fusion process so that
Alloy can obtain tiny globular crystal tissue, so as to refine alloy inner tissue structure.
Al-Ti-C-B intermediate alloys combine the advantages of two kinds of intermediate alloys of Al-Ti-C and Al-Ti-B, overcome both
The shortcomings that, there is superpower grain refining capability, and thinning effect has long-acting type and stability；The power of alloy can be significantly improved
Performance is learned, is effectively improved the process industrial art performance and presentation quality of alloy, improves the use value of alloy.
The preparation method of above-mentioned almag ingot casting includes smelting technology and Technology for Heating Processing；Wherein, the smelting technology
In N2、CO2And SF6Carried out under the conditions of mixed gas protected, step is as follows：
(1) weighing and baking material：By material quality percentage, weigh respectively graphene composite material, magnesium ingot, aluminium ingot, zinc ingot metal,
Magnesium manganese intermediate alloy, Al-Ti-C-B intermediate alloys；And various raw materials are placed in 230-250 DEG C of preheating furnace and preheat 5-8h；
(2) melting：Magnesium ingot after preheating is placed in melting furnace and is heated to 660-680 DEG C and is completely melt to magnesium ingot, then
740-760 DEG C is warming up to, magnesium manganese intermediate alloy and Al-Ti-C-B intermediate alloys are added into the magnesium liquid of fusing；Treat among magnesium manganese
After alloy and Al-Ti-C-B intermediate alloys are completely melt, melt temperature, which gos up, adds preheated graphene during to 740-760 DEG C
Composite, aluminium ingot and zinc ingot metal, stirring obtain hybrid alloys melt to being completely melt；
(3) refine and stand：Hybrid alloys melt obtained by step (2) is warming up to 780 DEG C, skims surface scum, so
After be uniformly mixed after be incubated 15-30min, refine 3-5min at this temperature, skim surface scum after the completion of refining again, return
780 DEG C are risen to, stands 45-60min；
(4) cast：When alloy melt to be mixed is cooled to 700-710 DEG C after standing, to the steel die heated in advance
In poured into a mould, obtain alloy cast ingot；
Described Technology for Heating Processing is：
The alloy cast ingot that melting is obtained carries out 2-4h solution treatment at a temperature of 350-380 DEG C, then in 200-210
10-12h Ageing Treatment is carried out in DEG C temperature.
Mixed gas N in the smelting technology2、CO2And SF6Volume ratio be 50:50:0.3.
The preheating temperature of the steel die is 260-300 DEG C.
Beneficial effects of the present invention：The graphene that the almag ingot casting of the present invention with the addition of rare earth oxide modification is compound
Reinforcing material and Al-Ti-C-B intermediate alloys, then not only can may be used also by melting with after heat treatment with thinning microstructure internal structure
To improve the decay resistance of alloy so that the alloy material combination property prepared is preferable.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.In embodiment, various raw materials are all Marko's ripple
Net product.
Embodiment 1
A kind of almag ingot casting, is made up of the raw material of following mass percent：
Graphene composite material 1.5%, aluminium 3.9%, zinc 0.8%, manganese 0.3%, Al-Ti-C-B intermediate alloys 0.1%, no
Evitable impurity≤0.05%, surplus are magnesium；Wherein, graphene composite material is graphene/samarium oxide composite, and it is made
It is for process：
A) graphene oxide is handled：0.5g graphene oxide powders are dispersed in 400mL deionized waters, then using work(
Rate is 100W ultrasonic cleaner ultrasound 30min, obtains fully decentralized graphene oxide suspension, wherein, regulation
The temperature of ultrasonic cleaner is 25 DEG C；
B) preparation of graphene/samarium oxide composite：Add into the graphene oxide suspension obtained by step a)
Enter 0.15g samaric nitrates and continue ultrasonic 30min, flow back 24h at a temperature of being subsequently placed in 100 DEG C, and backflow is cooled to 65 DEG C and added after terminating
Enter 5g sodium borohydrides to continue to react 4h, well mixed suspension system is filtered by vacuum, washed, vacuum by question response after terminating
Drying process, 550 DEG C of temperature lower calcination 7h are finally placed in again, obtain graphene/samarium oxide composite.
The preparation method of above-mentioned almag ingot casting includes smelting technology and Technology for Heating Processing；Wherein, the smelting technology
In N2、CO2And SF6Carried out under the conditions of mixed gas protected, step is as follows：
(1) weighing and baking material：By material quality percentage, weigh respectively graphene composite material, magnesium ingot, aluminium ingot, zinc ingot metal,
Magnesium manganese intermediate alloy, Al-Ti-C-B intermediate alloys；And various raw materials are placed in 250 DEG C of preheating furnace and preheat 6h；
(2) melting：Magnesium ingot after preheating is placed in melting furnace and is heated to 660 DEG C and is completely melt to magnesium ingot, is then heated up
To 760 DEG C, magnesium manganese intermediate alloy and Al-Ti-C-B intermediate alloys are added into the magnesium liquid of fusing；Treat magnesium manganese intermediate alloy and Al-
After Ti-C-B intermediate alloys are completely melt, melt temperature adds preheated graphene composite material, aluminium ingot when ging up to 760 DEG C
And zinc ingot metal, stirring obtain hybrid alloys melt to being completely melt；
(3) refine and stand：Hybrid alloys melt obtained by step (2) is warming up to 780 DEG C, skims surface scum, so
After be uniformly mixed after be incubated 30min, refine 5min at this temperature, skim surface scum after the completion of refining again, go up extremely
780 DEG C, stand 60min；
(4) cast：When alloy melt to be mixed is cooled to 700 DEG C after standing, to the steel die for being previously heated to 290 DEG C
In poured into a mould, obtain alloy cast ingot；
Described Technology for Heating Processing is：
The alloy cast ingot that melting obtains is carried out to 3h solution treatment at a temperature of 350 DEG C, then entered in 200 DEG C of temperature
Row 10h Ageing Treatment.
Embodiment 2
A kind of almag ingot casting, is made up of the raw material of following mass percent：
Graphene composite material 1.8%, aluminium 4.5%, zinc 0.8%, manganese 0.3%, Al-Ti-C-B intermediate alloys 0.15%,
Inevitable impurity≤0.05%, surplus is magnesium；Wherein, graphene composite material is graphene/samarium oxide composite, its
Preparation process is：
A) graphene oxide is handled：0.5g graphene oxide powders are dispersed in 400mL deionized waters, then using work(
Rate is 100W ultrasonic cleaner ultrasound 30min, obtains fully decentralized graphene oxide suspension, wherein, regulation
The temperature of ultrasonic cleaner is 25 DEG C；
B) preparation of graphene/samarium oxide composite：Add into the graphene oxide suspension obtained by step a)
Enter 0.2g samaric nitrates and continue ultrasonic 35min, flow back 24h at a temperature of being subsequently placed in 100 DEG C, and backflow is cooled to 70 DEG C of additions after terminating
5g sodium borohydrides continue to react 4h, and well mixed suspension system is filtered by vacuum, washed by question response after terminating, vacuum is done
Dry processing, 580 DEG C of temperature lower calcination 8h are finally placed in again, obtain graphene/samarium oxide composite.
The preparation method of above-mentioned almag ingot casting includes smelting technology and Technology for Heating Processing；Wherein, the smelting technology
In N2、CO2And SF6Carried out under the conditions of mixed gas protected, step is as follows：
(1) weighing and baking material：By material quality percentage, weigh respectively graphene composite material, magnesium ingot, aluminium ingot, zinc ingot metal,
Magnesium manganese intermediate alloy, Al-Ti-C-B intermediate alloys；And various raw materials are placed in 240 DEG C of preheating furnace and preheat 8h；
(2) melting：Magnesium ingot after preheating is placed in melting furnace and is heated to 660 DEG C and is completely melt to magnesium ingot, is then heated up
To 760 DEG C, magnesium manganese intermediate alloy and Al-Ti-C-B intermediate alloys are added into the magnesium liquid of fusing；Treat magnesium manganese intermediate alloy and Al-
After Ti-C-B intermediate alloys are completely melt, melt temperature adds preheated graphene composite material, aluminium ingot when ging up to 760 DEG C
And zinc ingot metal, stirring obtain hybrid alloys melt to being completely melt；
(3) refine and stand：Hybrid alloys melt obtained by step (2) is warming up to 780 DEG C, skims surface scum, so
After be uniformly mixed after be incubated 30min, refine 5min at this temperature, skim surface scum after the completion of refining again, go up extremely
780 DEG C, stand 60min；
(4) cast：When alloy melt to be mixed is cooled to 710 DEG C after standing, to the steel die for being previously heated to 300 DEG C
In poured into a mould, obtain alloy cast ingot；
Described Technology for Heating Processing is：
The alloy cast ingot that melting obtains is carried out to 3h solution treatment at a temperature of 350 DEG C, then entered in 200 DEG C of temperature
Row 10h Ageing Treatment.
After testing, the technical parameter of almag ingot casting produced by the present invention is as follows：
Claims (4)
1. a kind of almag ingot casting, it is characterised in that be made up of the raw material of following mass percent：Graphene composite material
1.2-2.0%, aluminium 3.8-5.2%, zinc 0.6-0.9%, manganese 0.2-0.4%, Al-Ti-C-B intermediate alloy 0.05-0.15%, no
Evitable impurity≤0.05%, surplus are magnesium；Wherein, graphene composite material is graphene/samarium oxide composite, and it is made
It is for process：
A) graphene oxide is handled：Graphene oxide powder is scattered in deionized water, and it is 1- to be configured to mass concentration
1.5mg/mL graphene oxide water solution, then using the ultrasonic cleaner ultrasound 25-30min that power is 60-100W, obtain
To fully decentralized graphene oxide suspension, wherein, the temperature for adjusting ultrasonic cleaner is 20-25 DEG C；
B) preparation of graphene/samarium oxide composite：Added into the graphene oxide suspension obtained by step a) suitable
Measure samaric nitrate and continue ultrasonic 30-40min, flowed back 20-24h at a temperature of being subsequently placed in 100-105 DEG C, and backflow is cooled to after terminating
60-70 DEG C adds sodium borohydride and continues to react 3-4h, well mixed suspension system is filtered by vacuum by question response after terminating,
Washing, vacuum drying treatment, are finally placed in 550-600 DEG C of temperature lower calcination 5-8h, obtain graphene/samarium oxide composite wood again
Material；Wherein, the mass ratio of graphene oxide powder, samaric nitrate and sodium borohydride is 1:(0.2-0.4):10.
2. the preparation method of a kind of almag ingot casting described in claim 1, it is characterised in that the preparation method includes molten
Sweetening process and Technology for Heating Processing；Wherein, the smelting technology is in N2、CO2And SF6Carried out under the conditions of mixed gas protected, step is such as
Under：
(1) weighing and baking material：By material quality percentage, graphene composite material, magnesium ingot, aluminium ingot, zinc ingot metal, magnesium manganese are weighed respectively
Intermediate alloy, Al-Ti-C-B intermediate alloys；And various raw materials are placed in 230-250 DEG C of preheating furnace and preheat 5-8h；
(2) melting：Magnesium ingot after preheating is placed in melting furnace and is heated to 660-680 DEG C and is completely melt to magnesium ingot, is then heated up
To 740-760 DEG C, magnesium manganese intermediate alloy and Al-Ti-C-B intermediate alloys are added into the magnesium liquid of fusing；Treat magnesium manganese intermediate alloy
After being completely melt with Al-Ti-C-B intermediate alloys, it is compound that melt temperature gos up to add preheated graphene during to 740-760 DEG C
Material, aluminium ingot and zinc ingot metal, stirring obtain hybrid alloys melt to being completely melt；
(3) refine and stand：Hybrid alloys melt obtained by step (2) is warming up to 780 DEG C, surface scum is skimmed, then stirs
Mix and be incubated 15-30min after being well mixed, refine 3-5min at this temperature, skim surface scum after the completion of refining again, go up extremely
780 DEG C, stand 45-60min；
(4) cast：When alloy melt to be mixed is cooled to 700-710 DEG C after standing, enter into the steel die heated in advance
Row cast, obtains alloy cast ingot；
Described Technology for Heating Processing is：
The alloy cast ingot that melting is obtained carries out 2-4h solution treatment at a temperature of 350-380 DEG C, then in 200-210 DEG C of temperature
10-12h Ageing Treatment is carried out in degree.
A kind of 3. preparation method of almag ingot casting according to claim 4, it is characterised in that：In the smelting technology
Mixed gas N2、CO2And SF6Volume ratio be 50:50:0.3.
A kind of 4. preparation method of almag ingot casting according to claim 4, it is characterised in that：The steel die
Preheating temperature is 260-300 DEG C.
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| CN110684915A (en) * | 2019-10-29 | 2020-01-14 | 东莞市腾美金属科技有限公司 | High-strength magnesium alloy |
| CN111822504A (en) * | 2020-07-02 | 2020-10-27 | 江苏鼎胜新能源材料股份有限公司 | Method for manufacturing medicinal aluminum foil |
| CN114855035A (en) * | 2022-05-26 | 2022-08-05 | 扬州工业职业技术学院 | Heat-resistant high-strength automobile hub aluminum alloy material |
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| CN111822504A (en) * | 2020-07-02 | 2020-10-27 | 江苏鼎胜新能源材料股份有限公司 | Method for manufacturing medicinal aluminum foil |
| CN111822504B (en) * | 2020-07-02 | 2022-04-19 | 江苏鼎胜新能源材料股份有限公司 | Method for manufacturing medicinal aluminum foil |
| CN114855035A (en) * | 2022-05-26 | 2022-08-05 | 扬州工业职业技术学院 | Heat-resistant high-strength automobile hub aluminum alloy material |
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