CN108048765A - A kind of automotive upholstery production magnesium alloy materials and preparation method thereof - Google Patents
A kind of automotive upholstery production magnesium alloy materials and preparation method thereof Download PDFInfo
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- CN108048765A CN108048765A CN201711403600.2A CN201711403600A CN108048765A CN 108048765 A CN108048765 A CN 108048765A CN 201711403600 A CN201711403600 A CN 201711403600A CN 108048765 A CN108048765 A CN 108048765A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/06—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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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 automotive upholstery production magnesium alloy materials and preparation method thereof, which includes the raw material of following parts by weight：Carbon fiber hybrid composite material granular, aluminium, zinc, manganese, silicon, iron, nickel, Al Ti B Re intermediate alloys, surplus are magnesium and inevitable impurity.The automotive upholstery production magnesium alloy materials of gained of the invention add carbon fiber hybrid composite material granular on the basis of magnalium matrix, effectively raise the mechanical performances such as the heat-resisting of magnesium alloy, intensity, wear-resisting, and Al Ti B Re intermediate alloys are added so that uniform high temperature resistance for further improving alloy of crystal grain refinement and intensity in magnesium alloy materials tissue etc., can effectively improve casting and the processing performance of magnesium alloy materials；Meanwhile the addition of carbon fiber hybrid composite material granular causes magnesium alloy materials to achieve the effect that material lightweight, reduces the cost of material and extends service life.
Description
Technical field
The invention belongs to field of alloy material, and in particular to a kind of automotive upholstery production magnesium alloy materials and its preparation
Method.
Background technology
Magnesium alloy is most light structural metallic materials, and specific strength, specific stiffness are very high, is closed than elasticity modulus 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 fields such as aerospace science field and automobile making have 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 with the increasingly raising of the China Auto Market level of consumption, the ownership of Chinese automobile has significantly
Promotion, and magnesium alloy use can effectively reduce the total quality of automobile on automobile making material, promote the property of automobile
Can, there is energy-saving and environment-friendly effect, 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, is affected by technical factor, therefore casts magnesium and close
The research of technology for gold has great importance for the development of magnesium alloy industry.
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, these shortcomings limit the use of magnesium alloy, are to carry
Intensity, heat-resisting quantity of high magnesium alloy etc. are the main contents of current magnesium alloy technical research, the rare earth modification that the present invention uses
Intermediate alloy and carbon fiber hybrid composite material granular enhancing almag, not only can be with thinning microstructure internal structure
The performances such as the high temperature of raising alloy, wear-resisting so that the alloy material better performances prepared.
The content of the invention
In view of object above, the invention discloses a kind of automotive upholstery production magnesium alloy materials, by adding carbon fibre
Tie up hybrid composite particle and the intermediate alloy of rare earth modification so that the machines such as high-temperature behavior, wear-resisting property of the alloy of preparation
Tool performance all makes moderate progress.
To achieve these goals, the technical solution adopted by the present invention is：A kind of automotive upholstery production magnesium alloy material
Material, is made of the raw material of following mass percent：Carbon fiber hybrid composite material granular 3.2-5.5%, aluminium 5.6-6.2%, zinc
0.1-0.2%, manganese 0.32-0.57%, silicon 0.05-0.08%, iron 0.005-0.01%, nickel 0.001-0.002%, Al-Ti-B-
Re intermediate alloys 0.4-0.6%, surplus are magnesium and inevitable impurity；Wherein, the preparation of carbon fiber hybrid composite material granular
Process is：
1) surface preparation is carried out to carbon nano-fiber：A certain amount of carbon nano-fiber is placed in beaker, adds in acid
Mixed liquor, which is placed on, to be shaken in the Ultrasound Instrument sink of 30-50KHz and is taken out after stirring 2-3h, is filtered off sour mixed liquor and is used deionization
Water cleans 3-5 time, and treated that carbon nano-fiber is placed in 60-70 DEG C of drying box that drying to constant weight by general afterwards, for use；Wherein,
Sour mixed liquor component is the mixed solution of 100ml/L HCl and 80ml/L HF；
2) the pretreated carbon nano-fiber of step 1) is put with Effect of Organosilicon-modified Phenol-formaldehyde Resin and alumina ceramic powder
It is taken out after grinding 6-8h in grinder, then the mixture of taking-up is put into homogenizer after stirring 15-20min, added in
Maleic anhydride be grafted compatilizer, continue stir 15-20min after by mixed material be sent into double screw extruder in melt blending, squeeze
Go out carbon fiber hybrid composite material granular；Wherein, carbon nano-fiber, Effect of Organosilicon-modified Phenol-formaldehyde Resin and alumina ceramic powder
Quality parts ratio is 4：(9-10)：(2-3).
The Al-Ti-B-Re intermediate alloys are selected from Al-4Ti-B-La intermediate alloys, Al-4Ti-B-Y intermediate alloys and Al-
One or more in 4Ti-B-Nd intermediate alloys.The preparation method reference papers of its Al-Ti-B-Re intermediate alloy《Al-Ti-
B-Re Master alloy refiners are studied》(Dalian University of Technology, 2007)；Its Al-4Ti-B-La intermediate alloy being prepared etc.
It can not only make in alloy structure that crystal grain refinement is uniform, high temperature resistance and intensity of alloy etc. can also be effectively improved.
The preparation method of above-mentioned automotive upholstery production magnesium alloy materials includes smelting technology and heat treatment process；Its
In, the smelting technology is in N2And SF6It is carried out under the conditions of mixed gas protected, step is as follows：
(1) by material quality percentage, carbon fiber hybrid composite material granular, magnesium ingot, aluminium ingot, zinc ingot metal, electricity are weighed respectively
Xie Meng, silica flour, iron powder, nickel powder and Al-Ti-B-Re intermediate alloys, and various raw materials are placed in 260-280 DEG C of preheating furnace
Preheat 10-15h；
(2) magnesium ingot after preheating is placed in melting furnace and is heated to 670-690 DEG C and is completely melt to magnesium ingot, then to fusing
Magnesium liquid in add in carbon fiber hybrid composite material granular, be heated to after carbon fiber hybrid composite material granular is completely melt, obtain
To mixing magnesium liquid 1,3-5min is kept the temperature at this temperature；
(3) again into the mixing magnesium liquid 1 of the fusing obtained by step (2) add in aluminium ingot, zinc ingot metal, electrolytic manganese, be heated to aluminium ingot,
After zinc ingot metal, electrolytic manganese are completely melt, mixing magnesium liquid 2 is obtained, keeps the temperature 6-8min at this temperature；
(4) Al-Ti-B-Re intermediate alloys are further added in into the mixing magnesium liquid 2 of the fusing obtained by step (3), are added
After heat is completely melt to Al-Ti-B-Re intermediate alloys, mixing magnesium liquid 3 is obtained, keeps the temperature 10-15min at this temperature；
(5) silica flour, iron powder and nickel powder are added in the mixing magnesium liquid 3 of the fusing obtained by most backward step (4), is heated to silicon
After powder, iron powder and nickel powder are completely melt, hybrid alloys melt is obtained, keeps the temperature 5-7min at this temperature；
(6) surface scum of the hybrid alloys melt obtained by step (5) is skimmed, refines 3-5min at this temperature, is refined
It skims surface scum again after finishing, is warming up to 760-780 DEG C, stand 10-15min；
(7) when alloy molten solution to be mixed is cooled to 720-730 DEG C after standing, carried out into the steel die heated in advance
Cast, obtains automotive upholstery production magnesium alloy materials；
The heat treatment process is：
The magnesium alloy materials that melting is obtained carry out the solution treatment of 3-5h at a temperature of 350-380 DEG C, then 150 ±
The ageing treatment of 12h is carried out in 5 DEG C of temperature.
Mixed gas N in the smelting technology2And SF6Volume ratio be 50:1.
The preheating temperature of the steel die is 220-230 DEG C.
After testing, the tensile strength of the automotive upholstery production magnesium alloy materials of gained after alloying is smelted and is heat-treated
For 530-560MPa, yield strength 380-420MPa, hardness 78-80HV, coefficient of friction 0.068-0.073, elongation
For 9.8-10.4%, grain size is 7-8 grades, and service life is 1.6-1.8 times of equivalents.
The carbon fiber hybrid composite material granular of the present invention leads to using Effect of Organosilicon-modified Phenol-formaldehyde Resin as the substrate of composite material
Cross maleic anhydride grafting compatilizer Farraginous carbon fiber and alumina ceramic powder, after testing, the hybrid composite being prepared
It compounds in magnesium alloy substrate, enhancing effect is better than the enhancing effect of homogenous material, is embodied in and fails with good heat resistanceheat resistant
Property, the appropriate and smaller wear rate of hardness etc..
Beneficial effects of the present invention：The automotive upholstery production magnesium alloy materials of gained of the invention are in the base of magnalium matrix
Carbon fiber hybrid composite material granular is added on plinth, effectively raises the mechanical performances such as the heat-resisting of magnesium alloy, intensity, wear-resisting,
And Al-Ti-B-Re intermediate alloys are added so that crystal grain refinement in magnesium alloy materials tissue is uniform to further improve alloy
High temperature resistance and intensity etc., casting and the processing performance of magnesium alloy materials can be effectively improved；Meanwhile carbon fiber hybrid is multiple
The addition of condensation material particle causes magnesium alloy materials to achieve the effect that material lightweight, reduces the cost of material and extends
Service life.
Specific embodiment
The specific 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 Marko's ripple
Net product, wherein carbon nano-fiber are Qingdao nanosecond science and technology limited company of University of Science and Technology of Haier product.
Embodiment 1
A kind of automotive upholstery production magnesium alloy materials, are made of the raw material of following mass percent：Carbon fiber hybrid
Composite material granular 4.8%, aluminium 5.9%, zinc 0.1%, manganese 0.45%, silicon 0.06%, iron 0.005%, nickel 0.001%, Al-
4Ti-B-La intermediate alloys 0.2%, Al-4Ti-B-Y intermediate alloys 0.3%, surplus are magnesium and inevitable impurity；Wherein, carbon
The preparation process of fiber hybrid composite material granular is：
1) surface preparation is carried out to carbon nano-fiber：8 parts of carbon nano-fibers are placed in beaker, add in sour mixed liquor
It is placed on and shakes in the Ultrasound Instrument sink of 40KHz and taken out after stirring 3h, filter off sour mixed liquor and cleaned 5 times with deionized water,
Afterwards will treated that carbon nano-fiber is placed in 65 DEG C of drying boxes that drying to constant weight, for use；Wherein, sour mixed liquor component is
The mixed solution of 100ml/L HCl and 80ml/L HF；
2) by the pretreated carbon nano-fiber of step 1) and 20 parts of Effect of Organosilicon-modified Phenol-formaldehyde Resin and 4 parts of aluminium oxide ceramics
Powder is placed in grinder and is taken out after grinding 8h, then the mixture of taking-up is put into homogenizer after stirring 18min, adds in
Maleic anhydride be grafted compatilizer, continue stir 18min after by mixed material be sent into double screw extruder in melt blending, squeeze out carbon
Fiber hybrid composite material granular.
The preparation method of above-mentioned automotive upholstery production magnesium alloy materials includes smelting technology and heat treatment process；Its
In, the smelting technology is in N2And SF6It is carried out under the conditions of mixed gas protected, step is as follows：
(1) by material quality percentage, carbon fiber hybrid composite material granular, magnesium ingot, aluminium ingot, zinc ingot metal, electricity are weighed respectively
Xie Meng, silica flour, iron powder, nickel powder, Al-Ti-B-La intermediate alloys and Al-4Ti-B-Y intermediate alloys, and various raw materials are placed on
12h is preheated in 270 DEG C of preheating furnace；
(2) magnesium ingot after preheating is placed in melting furnace and is heated to 680 DEG C and is completely melt to magnesium ingot, then to the magnesium of fusing
Carbon fiber hybrid composite material granular is added in liquid, is heated to after carbon fiber hybrid composite material granular is completely melt, is mixed
Magnesium liquid 1 is closed, keeps the temperature 4min at this temperature；
(3) again into the mixing magnesium liquid 1 of the fusing obtained by step (2) add in aluminium ingot, zinc ingot metal, electrolytic manganese, be heated to aluminium ingot,
After zinc ingot metal, electrolytic manganese are completely melt, mixing magnesium liquid 2 is obtained, keeps the temperature 7min at this temperature；
(4) further into the mixing magnesium liquid 2 of the fusing obtained by step (3) add in Al-Ti-B-La intermediate alloys and
Al-4Ti-B-Y intermediate alloys are heated to Al-Ti-B-La intermediate alloys and after Al-4Ti-B-Y intermediate alloys are completely melt, obtain
To mixing magnesium liquid 3,13min is kept the temperature at this temperature；
(5) silica flour, iron powder and nickel powder are added in the mixing magnesium liquid 3 of the fusing obtained by most backward step (4), is heated to silicon
After powder, iron powder and nickel powder are completely melt, hybrid alloys melt is obtained, keeps the temperature 6min at this temperature；
(6) surface scum of the hybrid alloys melt obtained by step (5) is skimmed, 5min is refined at this temperature, has refined
Cheng Houzai skims surface scum, is warming up to 770 DEG C, stands 12min；
(7) alloy molten solution to be mixed is when being cooled to 720 DEG C after standing, to be previously heated in 230 DEG C of steel die into
Row cast, obtains automotive upholstery production magnesium alloy materials；
The heat treatment process is：
The magnesium alloy materials that melting obtains are carried out to the solution treatment of 4h at a temperature of 360 DEG C, then in 150 DEG C of temperature
Carry out the ageing treatment of 12h.
After testing, the tensile strength of the automotive upholstery production magnesium alloy materials of gained after alloying is smelted and is heat-treated
For 542MPa, yield strength 401MPa, hardness 78.3HV, coefficient of friction 0.071, elongation 9.9%, grain size is
8 grades, service life is 1.64 times of equivalents.
Embodiment 2
A kind of automotive upholstery production magnesium alloy materials, are made of the raw material of following mass percent：Carbon fiber hybrid
Composite material granular 5.3%, aluminium 6.1%, zinc 0.15%, manganese 0.53%, silicon 0.07%, iron 0.008%, nickel 0.001%, Al-
4Ti-B-Y intermediate alloys 0.4%, Al-4Ti-B-Nd intermediate alloys 0.2%, surplus are magnesium and inevitable impurity；Wherein, carbon
The preparation process of fiber hybrid composite material granular is：
1) surface preparation is carried out to carbon nano-fiber：8 parts of carbon nano-fibers are placed in beaker, add in sour mixed liquor
It is placed on and shakes in the Ultrasound Instrument sink of 45KHz and taken out after stirring 2.5h, filter off sour mixed liquor and clean 5 with deionized water
It is secondary, afterwards will treated that carbon nano-fiber is placed in 70 DEG C of drying boxes that drying to constant weight, for use；Wherein, sour mixed liquor component
For the mixed solution of 100ml/L HCl and 80ml/L HF；
2) by the pretreated carbon nano-fiber of step 1) and 18 parts of Effect of Organosilicon-modified Phenol-formaldehyde Resin and 4 parts of aluminium oxide ceramics
Powder is placed in grinder and is taken out after grinding 8h, then the mixture of taking-up is put into homogenizer after stirring 20min, adds in
Maleic anhydride be grafted compatilizer, continue stir 20min after by mixed material be sent into double screw extruder in melt blending, squeeze out carbon
Fiber hybrid composite material granular.
The preparation method of above-mentioned automotive upholstery production magnesium alloy materials includes smelting technology and heat treatment process；Its
In, the smelting technology is in N2And SF6It is carried out under the conditions of mixed gas protected, step is as follows：
(1) by material quality percentage, carbon fiber hybrid composite material granular, magnesium ingot, aluminium ingot, zinc ingot metal, electricity are weighed respectively
Xie Meng, silica flour, iron powder, nickel powder, Al-4Ti-B-Y intermediate alloys and Al-4Ti-B-Nd intermediate alloys, and various raw materials are placed
14h is preheated in 280 DEG C of preheating furnace；
(2) magnesium ingot after preheating is placed in melting furnace and is heated to 680 DEG C and is completely melt to magnesium ingot, then to the magnesium of fusing
Carbon fiber hybrid composite material granular is added in liquid, is heated to after carbon fiber hybrid composite material granular is completely melt, is mixed
Magnesium liquid 1 is closed, keeps the temperature 5min at this temperature；
(3) again into the mixing magnesium liquid 1 of the fusing obtained by step (2) add in aluminium ingot, zinc ingot metal, electrolytic manganese, be heated to aluminium ingot,
After zinc ingot metal, electrolytic manganese are completely melt, mixing magnesium liquid 2 is obtained, keeps the temperature 8min at this temperature；
(4) further into the mixing magnesium liquid 2 of the fusing obtained by step (3) add in Al-4Ti-B-Y intermediate alloys and
Al-4Ti-B-Nd intermediate alloys are heated to Al-4Ti-B-Y intermediate alloys and after Al-4Ti-B-Nd intermediate alloys are completely melt,
Mixing magnesium liquid 3 is obtained, keeps the temperature 15min at this temperature；
(5) silica flour, iron powder and nickel powder are added in the mixing magnesium liquid 3 of the fusing obtained by most backward step (4), is heated to silicon
After powder, iron powder and nickel powder are completely melt, hybrid alloys melt is obtained, keeps the temperature 7min at this temperature；
(6) surface scum of the hybrid alloys melt obtained by step (5) is skimmed, 5min is refined at this temperature, has refined
Cheng Houzai skims surface scum, is warming up to 780 DEG C, stands 15min；
(7) alloy molten solution to be mixed is when being cooled to 730 DEG C after standing, to be previously heated in 230 DEG C of steel die into
Row cast, obtains automotive upholstery production magnesium alloy materials；
The heat treatment process is：
The magnesium alloy materials that melting obtains are carried out to the solution treatment of 3h at a temperature of 360 DEG C, then in 150 DEG C of temperature
Carry out the ageing treatment of 12h.
After testing, the tensile strength of the automotive upholstery production magnesium alloy materials of gained after alloying is smelted and is heat-treated
For 550MPa, yield strength 405MPa, hardness 79.1HV, coefficient of friction 0.069, elongation 10.2%, grain size
For 8 grades, service life is 1.73 times of equivalents.
Claims (5)
1. a kind of automotive upholstery production magnesium alloy materials, which is characterized in that be made of the raw material of following mass percent：Carbon
Fiber hybrid composite material granular 3.2-5.5%, aluminium 5.6-6.2%, zinc 0.1-0.2%, manganese 0.32-0.57%, silicon 0.05-
0.08%th, iron 0.005-0.01%, nickel 0.001-0.002%, Al-Ti-B-Re intermediate alloy 0.4-0.6%, surplus for magnesium and
Inevitable impurity；Wherein, the preparation process of carbon fiber hybrid composite material granular is：
1) surface preparation is carried out to carbon nano-fiber：A certain amount of carbon nano-fiber is placed in beaker, adds in acid mixing
Liquid, which is placed on, to be shaken in the Ultrasound Instrument sink of 30-50KHz and is taken out after stirring 2-3h, and the sour mixed liquor of elimination is simultaneously clear with deionized water
Wash 3-5 times, afterwards will treated that carbon nano-fiber is placed in 60-70 DEG C of drying box that drying to constant weight, for use；Wherein, acid is mixed
Close the mixed solution that liquid component is 100ml/L HCl and 80ml/L HF；
2) the pretreated carbon nano-fiber of step 1) with Effect of Organosilicon-modified Phenol-formaldehyde Resin and alumina ceramic powder is placed in and ground
It is taken out after grinding 6-8h in grinding machine, then the mixture of taking-up is put into homogenizer after stirring 15-20min, add in Malaysia
Acid anhydrides be grafted compatilizer, continue stir 15-20min after by mixed material be sent into double screw extruder in melt blending, squeeze out carbon
Fiber hybrid composite material granular；Wherein, the quality of carbon nano-fiber, Effect of Organosilicon-modified Phenol-formaldehyde Resin and alumina ceramic powder
Portion rate is 4：(9-10)：(2-3).
2. a kind of automotive upholstery production magnesium alloy materials according to claim 1, it is characterised in that：The Al-Ti-
B-Re intermediate alloys are in Al-4Ti-B-La intermediate alloys, Al-4Ti-B-Y intermediate alloys and Al-4Ti-B-Nd intermediate alloys
One or more.
3. a kind of automotive upholstery production magnesium alloy materials according to claim 1 or 2, which is characterized in that including with
Lower preparation method, the preparation method include smelting technology and heat treatment process；Wherein, the smelting technology is in N2And SF6Mixing
It is carried out under the conditions of gas shield, step is as follows：
(1) by material quality percentage, weigh respectively carbon fiber hybrid composite material granular, magnesium ingot, aluminium ingot, zinc ingot metal, electrolytic manganese,
Silica flour, iron powder, nickel powder and Al-Ti-B-Re intermediate alloys, and various raw materials are placed in 260-280 DEG C of preheating furnace and are preheated
10-15h；
(2) magnesium ingot after preheating is placed in melting furnace and is heated to 670-690 DEG C and is completely melt to magnesium ingot, then to the magnesium of fusing
Carbon fiber hybrid composite material granular is added in liquid, is heated to after carbon fiber hybrid composite material granular is completely melt, is mixed
Magnesium liquid 1 is closed, keeps the temperature 3-5min at this temperature；
(3) aluminium ingot, zinc ingot metal, electrolytic manganese are added in into the mixing magnesium liquid 1 of the fusing obtained by step (2) again, is heated to aluminium ingot, zinc
After ingot, electrolytic manganese are completely melt, mixing magnesium liquid 2 is obtained, keeps the temperature 6-8min at this temperature；
(4) Al-Ti-B-Re intermediate alloys are further added in into the mixing magnesium liquid 2 of the fusing obtained by step (3), are heated to
After Al-Ti-B-Re intermediate alloys are completely melt, mixing magnesium liquid 3 is obtained, keeps the temperature 10-15min at this temperature；
(5) silica flour, iron powder and nickel powder are added in the mixing magnesium liquid 3 of the fusing obtained by most backward step (4), is heated to silica flour, iron
After powder and nickel powder are completely melt, hybrid alloys melt is obtained, keeps the temperature 5-7min at this temperature；
(6) surface scum of the hybrid alloys melt obtained by step (5) is skimmed, refines 3-5min at this temperature, refining is completed
It skims surface scum again afterwards, is warming up to 760-780 DEG C, stand 10-15min；
(7) when alloy molten solution to be mixed is cooled to 720-730 DEG C after standing, poured into the steel die heated in advance
Note, obtains automotive upholstery production magnesium alloy materials；
The heat treatment process is：
The magnesium alloy materials that melting is obtained carry out the solution treatment of 3-5h at a temperature of 350-380 DEG C, then at 150 ± 5 DEG C
The ageing treatment of 12h is carried out in temperature.
4. a kind of automotive upholstery production magnesium alloy materials according to claim 3, it is characterised in that：The smelter
Mixed gas N in skill2And SF6Volume ratio be 50:1.
5. a kind of automotive upholstery production magnesium alloy materials according to claim 3, it is characterised in that：The steel die
The preheating temperature of tool is 220-230 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550936A (en) * | 2018-12-24 | 2019-04-02 | 南通金源智能技术有限公司 | Magnesium alloy powder and preparation method thereof |
| CN114350993A (en) * | 2021-12-30 | 2022-04-15 | 安徽科蓝特铝业有限公司 | Production process of high-strength aluminum alloy applied to bicycle frame |
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| CN114350993A (en) * | 2021-12-30 | 2022-04-15 | 安徽科蓝特铝业有限公司 | Production process of high-strength aluminum alloy applied to bicycle frame |
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Application publication date: 20180518 |