CN107858571A - A kind of magnesium alkene alloy preparation method - Google Patents
A kind of magnesium alkene alloy preparation method Download PDFInfo
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- CN107858571A CN107858571A CN201711055511.3A CN201711055511A CN107858571A CN 107858571 A CN107858571 A CN 107858571A CN 201711055511 A CN201711055511 A CN 201711055511A CN 107858571 A CN107858571 A CN 107858571A
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- magnesium
- magnesium alloy
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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
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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
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0084—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of magnesium alkene alloy preparation method, belongs to metallurgical technology field, and magnesium alloy application field is extensive, but the chemical property of magnesium alloy is unstable, and poor corrosion resistance, anti-fatigue performance is poor, larger to a certain extent to limit its application field；The present invention can effectively improve the corrosion resistance of magnesium alloy, enhancing anti-fatigue performance, enhancing croop property, magnesium alloy is mixed so as to change the institutional framework of magnesium alloy and grain size under given conditions with graphene, and then improve the mechanical performance of magnesium alloy, magnesium alkene alloy caused by new has excellent corrosion-resistant, antifatigue and creep-resistant property, and effectively reduces production cost.
Description
Technical field
The invention belongs to metallurgical technology field, and in particular to a kind of magnesium alkene alloy preparation method.
Background technology
Magnesium alloy has density small, and perfect heat-dissipating, anti-seismic performance is superior, and specific strength is high, and it is excellent that conductive and heat-conductive ability is strong etc.
Point, had broad application prospects in industrial circles such as automobile, electronics, space flight and aviation and military affairs, but magnesium alloy is chemically
Can be unstable, poor corrosion resistance, anti-fatigue performance is poor, larger to a certain extent to limit its application field.Therefore, such as
What from meet the angle of automobile-used structural material effectively improve magnesium alloy corrosion resistance, enhancing anti-fatigue performance, enhancing creep
Performance is the key technology difficulty for needing to solve in current magnesium alloy materials R and D.
In view of the above-mentioned problems, the corrosion resistance of magnesium alloy is typically improved using the method for surface increase coating, it is antifatigue
Property and creep resistance, but the method for face coat generally can not change the essential characteristics of metal, by long-term use, table
The coating shedding in face, make magnesium alloy exposure in atmosphere, at this moment the corrosion resistance of magnesium alloy, fatigue resistance and creep-resistant property are weak
The problem of just highlight, and the resistance to neutral salt spray ability of current coating is relatively low, and cost is higher, this make its usage time and
Application field is very restricted.
Therefore a kind of new alloy preparation technology is explored, existing magnesium alloy many merits and can enhancing magnesium alloy is corrosion-resistant
Property, fatigue resistance, creep resistance and reduce cost and be particularly important.
The content of the invention
It is resistance to solve to propose in above-mentioned background technology it is an object of the invention to provide a kind of magnesium alkene alloy preparation method
The problem of corrosivity, fatigue resistance and creep resistance；
A kind of magnesium alkene alloy preparation method, this method comprise the following steps.
The first step, one kilogram of graphene-containing 5-10% dispersant is added in one to two kilogram 100 μm of aluminium powder, dried
It is standby after dry.
Second step, the aluminium powder after drying is pressed into the pancake that thickness is 1-5cm with mould on forcing press, it is standby.
3rd step, melts aluminium ingot in vacuum drying oven, and then pancake is pressed into aluminium liquid with instrument, gradually heats 700-
750 DEG C, it is stirred continuously, graphene uniform is distributed in aluminium liquid.
4th step, when temperature reach 700-750 DEG C, 30-60 minutes are persistently melted, aluminium liquid is cast into stainless steel mould,
Sponge bulk alfene block is cast as, it is standby.
5th step, prepare qualified magnesium alloy（The different trades mark）Liquid, it is standby.
6th step, magnesium alloy liquid pressure is heated 700-800 DEG C, by alfene block（200-300 DEG C of preheating）Liquid is pressed into bell jar
In the middle part of body, it is stirred continuously, melts 10-30 minutes.
7th step, stand 30-60 minutes；It is cast as magnesium alloy bar.
In the preparation method of above-mentioned magnesium alkene alloy, it is preferable that in the first step, concrete operations are by graphene point
Powder is even added in aluminium powder and stirred, flash baking.
In the preparation method of above-mentioned magnesium alkene alloy, it is preferable that in the second step, powdery aluminium powder is added in mould
It is uniformly to shakeout.
The beneficial effects of the present invention are a kind of magnesium alkene alloy preparation method is provided, by magnesium alloy with graphene specific
Under conditions of mixing so as to change the institutional framework of magnesium alloy and grain size, and then improve the mechanical performance of magnesium alloy, new production
Raw magnesium alkene alloy has excellent corrosion-resistant, antifatigue and creep-resistant property, and effectively reduces production cost.
Embodiment
In order to which technical characteristic, purpose and the beneficial effect of the present invention is more clearly understood, now to the present invention's
Technical scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
Embodiment I
A kind of preparation method of magnesium alkene alloy is present embodiments provided, preparation method comprises the following steps.
The first step：The dispersant of one kilogram of graphene-containing 5% is added in one kilogram 100 μm of aluminium powder in container, stirred
Uniformly, 8h is dried, it is standby.
Second step, the powdery aluminium powder after drying is slowly added in mould, uniformly spreads out, is then loaded into aluminium powder
Mould is placed on forcing press, starts forcing press, and aluminium powder is pressed into the pancake that thickness is 1cm, standby.
3rd step, 500g aluminium ingots are added in vacuum drying oven and heating, vacuum stove melts aluminium ingot to 600 DEG C, then by
The pancake for the 1cm thickness that two steps press slowly is pressed into aluminium liquid with instrument, is gradually heated up to 700 DEG C, while constantly stirred with stirring rod
Mix, graphene uniform is distributed in aluminium liquid.
4th step, when temperature reaches 700 DEG C, persistently melt 30 minutes, then aluminium liquid be cast into stainless steel mould,
Sponge bulk alfene block is cast as, it is standby.
5th step, prepare qualified magnesium alloy（The different trades mark）Liquid, it is standby.
6th step, magnesium alloy liquid pressure is poured into heating furnace and is warmed to 700 DEG C, alfene block is then preheated to 200 DEG C simultaneously
Slowly entered with bell jar pressure in the middle part of liquid, be stirred continuously, persistently melted 10 minutes.
7th step, it is final to stand 30 minutes；It is cast as magnesium alloy bar.
Embodiment II
A kind of preparation method of magnesium alkene alloy is present embodiments provided, preparation method comprises the following steps.
The first step：The dispersant of one kilogram of graphene-containing 10% is added in two kilograms 100 μm of aluminium powder in container, stirred
Mix uniformly, it is standby after drying.
Second step, the powdery aluminium powder after drying is slowly added in mould, uniformly spreads out, is then loaded into aluminium powder
Mould is placed on forcing press, starts forcing press, and aluminium powder is pressed into the pancake that thickness is 5cm, standby.
3rd step, 500g aluminium ingot is added in vacuum drying oven and heating, vacuum stove melts aluminium ingot to 680 DEG C, then will
The pancake for the 5cm thickness that 3rd step presses slowly is pressed into aluminium liquid with instrument, is gradually heated up to 750 DEG C, is stirred continuously simultaneously, makes stone
Black alkene is evenly distributed in aluminium liquid.
4th step, when temperature reaches 700 DEG C, persistently melt 60 minutes, then aluminium liquid be cast into stainless steel mould,
Sponge bulk alfene block is cast as, it is standby.
5th step, prepare qualified magnesium alloy（The different trades mark）Liquid, it is standby.
6th step, magnesium alloy liquid pressure is poured into heating furnace and is warmed to 800 DEG C, alfene block is then preheated to 300 DEG C simultaneously
Slowly entered with bell jar pressure in the middle part of liquid, be stirred continuously, persistently melted 30 minutes.
7th step, it is final to stand 60 minutes；It is cast as magnesium alloy bar.
Claims (4)
1. a kind of magnesium alkene alloy preparation method, it is characterised in that comprise the following steps：
The first step, one kilogram of graphene-containing 5-10% dispersant is added in one to two kilogram 100 μm of aluminium powder, after drying
It is standby；
Second step, the aluminium powder after drying is pressed into the pancake that thickness is 1-5cm with mould on forcing press, it is standby；
3rd step, melts aluminium ingot in vacuum drying oven, the pancake is pressed into aluminium liquid with instrument, gradually 700-750 DEG C of heating,
It is stirred continuously, graphene uniform is distributed in aluminium liquid；
4th step, when temperature reach 700-750 DEG C, 30-60 minutes are persistently melted, the aluminium liquid is cast into stainless steel mould,
Sponge bulk alfene block is cast as, it is standby；
5th step, magnesium alloy liquid pressure is prepared, it is standby；
6th step, the magnesium alloy liquid pressure is heated 700-800 DEG C, the alfene block is pressed into the middle part of liquid with bell jar, constantly
Stirring, melt 10-30 minutes；
7th step, stand 30-60 minutes；It is cast as magnesium alloy bar.
A kind of 2. magnesium alkene alloy preparation method according to claim 1, it is characterised in that in the first step, specific behaviour
Work is that graphene dispersion agent is added in aluminium powder and stirred, and dries 8h.
3. a kind of magnesium alkene alloy preparation method according to claim 1, it is characterised in that in the second step, aluminium powder adds
Enter into mould, uniformly shakeout.
A kind of 4. magnesium alkene alloy preparation method according to claim 1, it is characterised in that in the 6th step, alfene block
200-300 DEG C is preheating to before in the middle part of press-in liquid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711055511.3A CN107858571A (en) | 2017-11-01 | 2017-11-01 | A kind of magnesium alkene alloy preparation method |
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| CN201711055511.3A CN107858571A (en) | 2017-11-01 | 2017-11-01 | A kind of magnesium alkene alloy preparation method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773980A (en) * | 2014-03-04 | 2014-05-07 | 哈尔滨工业大学 | Preparation method of high-performance graphene nanosheet reinforced magnesium matrix composite |
| CN103773988A (en) * | 2014-03-04 | 2014-05-07 | 哈尔滨工业大学 | Preparation method of graphene enhanced magnesium-based composite material |
| CN105112732A (en) * | 2015-06-25 | 2015-12-02 | 中国航空工业集团公司北京航空材料研究院 | Graphene/aluminium alloy composite |
| CN105112694A (en) * | 2015-06-25 | 2015-12-02 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of magnesium base graphene alloy |
| CN105624457A (en) * | 2016-03-22 | 2016-06-01 | 北京工业大学 | Graphene enhanced magnesium-based composite and preparing method thereof |
| CN105624446A (en) * | 2016-03-22 | 2016-06-01 | 北京工业大学 | Graphene-reinforced magnesium-aluminium matrix composite material and preparation method thereof |
-
2017
- 2017-11-01 CN CN201711055511.3A patent/CN107858571A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773980A (en) * | 2014-03-04 | 2014-05-07 | 哈尔滨工业大学 | Preparation method of high-performance graphene nanosheet reinforced magnesium matrix composite |
| CN103773988A (en) * | 2014-03-04 | 2014-05-07 | 哈尔滨工业大学 | Preparation method of graphene enhanced magnesium-based composite material |
| CN105112732A (en) * | 2015-06-25 | 2015-12-02 | 中国航空工业集团公司北京航空材料研究院 | Graphene/aluminium alloy composite |
| CN105112694A (en) * | 2015-06-25 | 2015-12-02 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of magnesium base graphene alloy |
| CN105624457A (en) * | 2016-03-22 | 2016-06-01 | 北京工业大学 | Graphene enhanced magnesium-based composite and preparing method thereof |
| CN105624446A (en) * | 2016-03-22 | 2016-06-01 | 北京工业大学 | Graphene-reinforced magnesium-aluminium matrix composite material and preparation method thereof |
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Application publication date: 20180330 |