CN106566967A - Inflaming-retarding magnesia-alumina series magnesium alloy and casting method of sand casting of inflaming-retarding magnesia-alumina series magnesium alloy - Google Patents
Inflaming-retarding magnesia-alumina series magnesium alloy and casting method of sand casting of inflaming-retarding magnesia-alumina series magnesium alloy Download PDFInfo
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- CN106566967A CN106566967A CN201610981718.2A CN201610981718A CN106566967A CN 106566967 A CN106566967 A CN 106566967A CN 201610981718 A CN201610981718 A CN 201610981718A CN 106566967 A CN106566967 A CN 106566967A
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- 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
- 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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- 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 an inflaming-retarding magnesia-alumina series magnesium alloy. The magnesium alloy comprises components including, by weight, 0.2%-0.8% of Zn, 7.5%-9.0% of Al, 0.15%-0.5% of Mn, 0-4.5% of Ca, 0-1.5% of Ce, 0-1.5% of La and the balance Mg. The invention further discloses a casting method of a sand casting of the inflaming-retarding magnesia-alumina series magnesium alloy. The casting method includes the following steps that pretreatment is carried out, wherein metal materials are weighed according to weight percentages; preheating is carried out; smelting and pouring are carried out, wherein the metal materials obtained after pretreatment are smelted to be evenly mixed, pouring is carried out after coverage and refining treatment, and the casting is obtained; and heat treatment is carried out, wherein the casting is subject to solution treatment, cooling, aging treatment and cooling, and the sand casting of the inflaming-retarding magnesia-alumina series magnesium alloy is obtained. Compared with the prior art, the ignition point of the magnesia-alumina series magnesium alloy can be effectively improved, and the smelting, pouring and cutting processes are safer.
Description
Technical field
The present invention relates to a kind of magnesium alloy of technical field of metal, specifically a kind of fire-retardant magnalium system magnesium alloy
And its casting method of sand-cast.
Background technology
Magnesium alloy has the advantages that low-density, high specific strength, is widely used in Aero-Space and each big industrial circle.Pass through
Add the alloying elements such as rare earth in magnesium alloy, be capable of achieving the raising of magnesium alloy burning-point, be directed to magnesium alloy materials at present both at home and abroad
The research of fire-retardant aspect is divided into addition Ca, Be, Zn and rare earth this four big class is carried out because of the difference of its addition element
However, finding in practical application, with the addition of flame-retardant alloy element, magnalium system magnesium alloy burning-point is stepped up, but
After addition reaches a certain marginal value, burning-point no longer rises, and has slow downward trend.Simultaneously as alloying element plus
Enter to promote magnalium system magnesium alloy ontology element to generate the such as oxide layer such as MgO, CaO with air reaction, which is preventing magnesium alloy solution
The mechanical property of foundry goods, and foundry goods ontological existence larger fragility are reduced while with air reaction, to fire-retardant magnalium system magnesium
Alloy is totally unfavorable in the engineer applied of every field.Therefore, how to solve fire-retardant magnalium system magnesium alloy to improve and power in burning-point
Performance both sides balance up to standard is learned, burning-point had both been improved, by the fire-retardant magnalium system magnesium alloy that can guarantee that mechanical castings,
It is the key for improving its engineer applied level.
Currently without the explanation or report that find technology similar to the present invention, money similar both at home and abroad is also not yet searched
Material.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of fire-retardant magnalium system magnesium alloy and its sand mold casting
The manufacture method of part；Add Ca elements and rare earth element ce, La in the fire-retardant magnalium system magnesium alloy, solve magnesium alloy air
Hold incendive problem during middle smelting and pouring；Simultaneously using the Technology for Heating Processing for antiflaming magnesium alloy, alloy unit is reduced
Impact of the addition of element to magnesium alloy mechanical property.The processing such as melting, cast, heat treatment is carried out to the alloy of selected components, can
Realize fire resistance and all good fire-retardant magnalium system magnesium alloy of mechanical property.
The present invention is achieved by the following technical solutions：In a first aspect, the present invention provides a kind of fire-retardant magnalium system magnesium closing
Gold, comprising component and percentage by weight be：Zn 0.2～0.8%, Al 7.5～9.0%, Mn 0.15～0.5, Ca 0～4.5%,
Ce 0～1.5%, La 0～1.5%, Mg are surplus.
Second aspect, the present invention provide a kind of casting method of the sand-cast of the fire-retardant magnalium system magnesium alloy, including
Following steps：
Pretreatment：The percentage by weight as described in claim 1 weighs metal material, preheating；Smelting and pouring：By pretreated gold
Category material melting, it is uniform to mix；Pour into a mould Jing after covering, refining treatment, obtain foundry goods；Heat treatment：The foundry goods is carried out at solid solution
Reason, cooling, Ageing Treatment, cooling obtain final product the sand-cast of fire-retardant magnalium system magnesium alloy.
Preferably, in the step of pretreatment, the temperature of the preheating is 220 DEG C, and the time is 6 hours.
Preferably, in the step of smelting and pouring, the coverture for adopting that covers is for JDMF.
Preferably, in the step of smelting and pouring, the refining agent that the refine is adopted is for JDMJ.
Preferably, in the step of smelting and pouring, the temperature of the cast is 690 DEG C～730 DEG C.
Preferably, in the step of heat treatment, the condition of the solution treatment is 14～16 hours at 400～410 DEG C.
Preferably, in the step of heat treatment, the condition of the Ageing Treatment is 15～25 hours at 170～200 DEG C.
Preferably, in the step of heat treatment, the cooling specifically refers to natural cooling in atmosphere.
Compared with prior art, removed using the sand-cast that fire-retardant magnalium system magnesium alloy of the invention is manufactured and effectively improve magnalium
It is, outside magnesium alloy solution and foundry goods fire resistance, also with good comprehensive mechanical property, to meet GB1177-91《Casting magnesium
Alloy》In requirement to magnalium system Mg alloy castings mechanical property.
Description of the drawings
Fig. 1 is the flow chart of the casting method of the sand-cast of the fire-retardant magnalium system magnesium alloy of the present invention.
Specific embodiment
Below embodiments of the invention are elaborated：The present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed embodiment and process, but protection scope of the present invention is not limited to the conjunction that following embodiments are enumerated
Golden composition.
Embodiment 1
Smelting and pouring prepares fire-retardant magnesium of the mass percent for Mg-0.5%Zn-8.2%Al-0.35%Mn-3.0%Ca-0%La-0%Ce
Aluminum system magnesium alloy, comprises the following steps：
Preparation raw material step：Pure magnesium, pure zinc, fine aluminium, Al-Mn intermediate alloys, Mg-Ca intermediate alloys are weighed by mass percentage.
All raw material is preheated at 220 DEG C, temperature retention time 6 hours.
Smelting and pouring step：Recommend using crucible electrical resistance furnace melting, add coverture JDMF to carry out covering, refining agent JDMJ
Refining treatment is carried out, each alloying component is uniformly mixed, removal of inclusions, poured into a mould at 730 DEG C.
Heat treatment step：Solution treatment is carried out at 400 DEG C to foundry goods, process time is 16 hours, air cooling；Enter at 180 DEG C
Row Ageing Treatment, process time are 24 hours.
The sand-cast of the fire-retardant magnalium system magnesium alloy manufacture of the present embodiment possesses outstanding fire resistance, gas-protection-free shape
695 DEG C of magnesium alloy solution initiation temperature under state, single casting sample T6 states under room temperature：σb>=245MPa, δ5≥2.5%。
Embodiment 2
Smelting and pouring prepares mass percent for the fire-retardant of Mg-0.5%Zn-8.2%Al-0.35%Mn-0%Ca-1.0%La-1.0%Ce
Magnalium system magnesium alloy, comprises the following steps：
Preparation raw material step：Weigh by mass percentage pure magnesium, pure zinc, fine aluminium, Al-Mn intermediate alloys, Mg-La intermediate alloys,
Mg-Ce intermediate alloys.All raw material is preheated at 220 DEG C, temperature retention time 6 hours.
Smelting and pouring step：Recommend using crucible electrical resistance furnace melting, add coverture JDMF to carry out covering, refining agent JDMJ
Refining treatment is carried out, each alloying component is uniformly mixed, removal of inclusions, poured into a mould at 720 DEG C.
Heat treatment step：Solution treatment is carried out at 405 DEG C to foundry goods, process time is 15 hours, air cooling；Enter at 190 DEG C
Row Ageing Treatment, process time are 30 hours.
The sand-cast of the fire-retardant magnalium system magnesium alloy manufacture of the present embodiment possesses outstanding fire resistance, gas-protection-free shape
715 DEG C of magnesium alloy solution initiation temperature under state, single casting sample T6 states under room temperature：σb>=250MPa, δ5≥3%。
Comparative example 1
This comparative example is the comparative example of embodiment 1, and the present embodiment is related to a kind of fire-retardant magnalium system magnesium alloy；It is different from embodiment 1
Part is only that the heat resistance casting magnesium alloy does not contain Ca；
The performance detection of the sand-cast of this comparative example magnesium alloy manufacture is as follows：
Magnesium alloy flame-proof performance is general, 608 DEG C of magnesium alloy solution initiation temperature, the casting without casting flaw under gas-protection-free state
Part body sampling performance can be stably reached：Single casting sample T6 states under room temperature：σb>=240MPa, δ5≥2.0%。
Comparative example 2
This comparative example is the comparative example of embodiment 2, and the present embodiment is related to a kind of fire-retardant magnalium system magnesium alloy；It is different from embodiment 2
Part is only that the condition of the heat resistance casting magnesium alloy solution treatment is 20 hours at 420 DEG C；The condition of Ageing Treatment is 250
10 hours at DEG C；
The performance detection of the sand-cast of this comparative example magnesium alloy manufacture is as follows：
Magnesium alloy flame-proof excellent performance, 715 DEG C of magnesium alloy solution initiation temperature, single casting sample under room temperature under gas-protection-free state
T6 states：σb>=200MPa, δ5≥3.5%。
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various modifications or modification within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (9)
1. a kind of fire-retardant magnalium system magnesium alloy, it is characterised in that be comprising component and percentage by weight：
Zn 0.2～0.8%；
Al 7.5～9.0%；
Mn 0.15～0.5；
Ca 0～4.5%；
Ce 0～1.5%；
La 0～1.5%；
Mg is surplus.
2. the casting method of the sand-cast of fire-retardant magnalium system magnesium alloy described in a kind of claim 1, it is characterised in that include as
Lower step：
Pretreatment：Metal material is weighed by weight percentage, is preheated；Smelting and pouring：By pretreated metal material melting,
Even mixing；Pour into a mould Jing after covering, refining treatment, obtain foundry goods；Heat treatment：Solution treatment, cooling are carried out to the foundry goods, at timeliness
Reason, cooling, obtain final product the sand-cast of fire-retardant magnalium system magnesium alloy.
3. the casting method of the sand-cast of fire-retardant magnalium system magnesium alloy according to claim 2, it is characterised in that described pre-
In the step of process, the temperature of the preheating is 220 DEG C, and the time is 6 hours.
4. the casting method of the sand-cast of fire-retardant magnalium system magnesium alloy according to claim 2, it is characterised in that described molten
In the step of refining cast, the coverture for adopting that covers is for JDMF.
5. the casting method of the sand-cast of fire-retardant magnalium system magnesium alloy according to claim 2, it is characterised in that described molten
In the step of refining cast, the refining agent that the refine is adopted is for JDMJ.
6. the casting method of the sand-cast of fire-retardant magnalium system magnesium alloy according to claim 2, it is characterised in that described molten
In the step of refining cast, the temperature of the cast is 690 DEG C～750 DEG C.
7. the casting method of the sand-cast of fire-retardant magnalium system magnesium alloy according to claim 2, it is characterised in that the heat
In the step of process, the condition of the solution treatment is 14～16 hours at 400～410 DEG C.
8. the casting method of the sand-cast of fire-retardant magnalium system magnesium alloy according to claim 2, it is characterised in that the heat
In the step of process, the condition of the Ageing Treatment is 15～25 hours at 170～200 DEG C.
9. the casting method of the sand-cast of fire-retardant magnalium system magnesium alloy according to claim 2, it is characterised in that the heat
In the step of process, the cooling specifically refers to natural cooling in atmosphere.
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| CN201610981718.2A CN106566967A (en) | 2016-11-08 | 2016-11-08 | Inflaming-retarding magnesia-alumina series magnesium alloy and casting method of sand casting of inflaming-retarding magnesia-alumina series magnesium alloy |
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| CN201610981718.2A CN106566967A (en) | 2016-11-08 | 2016-11-08 | Inflaming-retarding magnesia-alumina series magnesium alloy and casting method of sand casting of inflaming-retarding magnesia-alumina series magnesium alloy |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164675A (en) * | 2017-05-27 | 2017-09-15 | 东北大学 | A kind of magnalium zinc cerium alloy and its preparation method and application |
| CN107604272A (en) * | 2017-09-19 | 2018-01-19 | 安徽恒利增材制造科技有限公司 | A kind of magnesium alloy ingot and preparation method thereof |
| CN107604227A (en) * | 2017-09-19 | 2018-01-19 | 安徽恒利增材制造科技有限公司 | A kind of magnesium alloy ingot and preparation method thereof |
| CN107653409A (en) * | 2017-09-19 | 2018-02-02 | 安徽恒利增材制造科技有限公司 | A kind of high intensity zinc-aluminium magnesium alloy ingot and preparation method thereof |
| CN107653408A (en) * | 2017-09-19 | 2018-02-02 | 安徽恒利增材制造科技有限公司 | A kind of almag ingot casting and preparation method thereof |
| CN107675056A (en) * | 2017-09-19 | 2018-02-09 | 安徽恒利增材制造科技有限公司 | A kind of high-strength aluminium-magnesium alloy cast ingot and preparation method thereof |
| CN108315621A (en) * | 2018-01-08 | 2018-07-24 | 上海交通大学 | A kind of antiflaming magnesium alloy semi-solid rheological casting forming method |
| CN108642313A (en) * | 2018-05-25 | 2018-10-12 | 哈尔滨吉星机械工程有限公司 | A method of regenerating magnalium system magnesium alloy waste material using double rare earths |
| CN109207824A (en) * | 2017-06-29 | 2019-01-15 | 比亚迪股份有限公司 | A kind of magnesium alloy and preparation method thereof and mobile phone |
| CN109536798A (en) * | 2017-09-22 | 2019-03-29 | 比亚迪股份有限公司 | A kind of antiflaming magnesium alloy and its preparation method and application |
| CN115449682A (en) * | 2022-09-28 | 2022-12-09 | 广东汇天航空航天科技有限公司 | Magnesium-based alloy compounded by rare earth and alkaline earth elements and preparation method thereof |
| CN115781099A (en) * | 2023-01-29 | 2023-03-14 | 河北钢研德凯科技有限公司 | Welding wire special for argon arc welding of ZM5 alloy casting and preparation method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164675A (en) * | 2017-05-27 | 2017-09-15 | 东北大学 | A kind of magnalium zinc cerium alloy and its preparation method and application |
| CN107164675B (en) * | 2017-05-27 | 2019-02-22 | 东北大学 | A kind of magnalium zinc cerium alloy and its preparation method and application |
| CN109207824A (en) * | 2017-06-29 | 2019-01-15 | 比亚迪股份有限公司 | A kind of magnesium alloy and preparation method thereof and mobile phone |
| CN107653409A (en) * | 2017-09-19 | 2018-02-02 | 安徽恒利增材制造科技有限公司 | A kind of high intensity zinc-aluminium magnesium alloy ingot and preparation method thereof |
| CN107653408A (en) * | 2017-09-19 | 2018-02-02 | 安徽恒利增材制造科技有限公司 | A kind of almag ingot casting and preparation method thereof |
| CN107675056A (en) * | 2017-09-19 | 2018-02-09 | 安徽恒利增材制造科技有限公司 | A kind of high-strength aluminium-magnesium alloy cast ingot and preparation method thereof |
| CN107604227A (en) * | 2017-09-19 | 2018-01-19 | 安徽恒利增材制造科技有限公司 | A kind of magnesium alloy ingot and preparation method thereof |
| CN107604272A (en) * | 2017-09-19 | 2018-01-19 | 安徽恒利增材制造科技有限公司 | A kind of magnesium alloy ingot and preparation method thereof |
| CN109536798A (en) * | 2017-09-22 | 2019-03-29 | 比亚迪股份有限公司 | A kind of antiflaming magnesium alloy and its preparation method and application |
| CN108315621A (en) * | 2018-01-08 | 2018-07-24 | 上海交通大学 | A kind of antiflaming magnesium alloy semi-solid rheological casting forming method |
| CN108642313A (en) * | 2018-05-25 | 2018-10-12 | 哈尔滨吉星机械工程有限公司 | A method of regenerating magnalium system magnesium alloy waste material using double rare earths |
| CN115449682A (en) * | 2022-09-28 | 2022-12-09 | 广东汇天航空航天科技有限公司 | Magnesium-based alloy compounded by rare earth and alkaline earth elements and preparation method thereof |
| WO2024066022A1 (en) * | 2022-09-28 | 2024-04-04 | 广东汇天航空航天科技有限公司 | Rare earth-alkaline earth element compounded magnesium-based alloy and preparation method therefor |
| CN115449682B (en) * | 2022-09-28 | 2024-04-26 | 广东汇天航空航天科技有限公司 | Rare earth and alkaline earth element compounded magnesium-based alloy and preparation method thereof |
| CN115781099A (en) * | 2023-01-29 | 2023-03-14 | 河北钢研德凯科技有限公司 | Welding wire special for argon arc welding of ZM5 alloy casting and preparation method thereof |
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