CN101643871B - Super-high-plasticity high-strength cast magnesium alloy and preparation method thereof - Google Patents
Super-high-plasticity high-strength cast magnesium alloy and preparation method thereof Download PDFInfo
- Publication number
- CN101643871B CN101643871B CN2009100674287A CN200910067428A CN101643871B CN 101643871 B CN101643871 B CN 101643871B CN 2009100674287 A CN2009100674287 A CN 2009100674287A CN 200910067428 A CN200910067428 A CN 200910067428A CN 101643871 B CN101643871 B CN 101643871B
- Authority
- CN
- China
- Prior art keywords
- magnesium
- alloy
- minute
- super
- pure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a super-high-plasticity high-strength cast magnesium alloy and a preparation method thereof. The cast magnesium alloy comprises the following chemical components by mass percent: 0.5-8.05% of tin, 1.0-6.0% of aluminum and the balance of magnesium. The preparation method comprises the following steps: under the protection of gases, melting preheated the pure magnesium at a preset low temperature, adding the tin and the aluminum in a certain proportion into the melt, evenly stirring after completely melting, heating to a high preset temperature to refine and remove slag, and finally casting to form ingots, The cast magnesium alloy has the advantages of super-high plasticity and high strength; and the preparation method has the advantages of simple technique, high reliability, easy popularization and application, and the like.
Description
Technical field
The present invention relates to metal material field, particularly relate to a kind of super-high-plasticity, cast Mg alloy with high strength and preparation method thereof.
Background technology
Magnesium alloy is as the lightest engineering structure metallic substance, special performance with many excellences, good as specific tenacity height, specific rigidity height, electrical and thermal conductivity, have good damping shock absorption and capability of electromagnetic shielding concurrently, good advantages such as regeneration have a good application prospect in fields such as automobile, communication equipment, aviation.Especially aspect lightweight, has the alternate of being difficult to significant advantage.Yet the crystalline structure of magnesium is a close-packed hexagonal, and slip system is few, and plastic deformation ability is poor, has limited its application to a great extent.Cast magnesium alloys can the moulding complicated shape, enjoys favor aborning, but that the shortcoming of cast magnesium alloys is a plasticity is relatively poor.Patent 200610045693.1 and 200710011886.X have provided the approach that improves the magnesium alloy performance respectively.Yet its technology is relatively complicated.In addition, the kind of magnesium alloy is less at present, is difficult to satisfy the requirement of different operating modes, is badly in need of developing a kind of super-high-plasticity, cast Mg alloy with high strength.
Summary of the invention
It is simple, reliable to the purpose of this invention is to provide a kind of technology, and the super-high-plasticity that is easy to apply, cast Mg alloy with high strength and preparation method thereof.
Technical scheme of the present invention is: under gas shield; preheated pure magnesium is melted under predetermined lesser temps, then a certain proportion of tin and aluminium are joined in the melt, stir until completely melted; be warming up to higher preset temperature refining and scarfing cinder again and handle, last casting ingot-forming.
A kind of super-high-plasticity, cast Mg alloy with high strength, the mass percent of the chemical ingredients of this alloy is: tin 0.5-8.0, aluminium 1.0-6.0, all the other are magnesium.
Described tin content mass percent is 2.0-5.0, and aluminium content mass percent is 2.0-4.0;
According to above-mentioned a kind of super-high-plasticity, the preparation method of cast Mg alloy with high strength, this method may further comprise the steps:
(1) gets the raw materials ready according to the magnesium alloy component proportions;
(2) in the gas shield smelting furnace, the pure magnesium ingot that will prepare in proportion is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) that will prepare in proportion respectively and add in the magnesium melt through the pure tin of 200 ℃ of preheatings and fine aluminium, continue to leave standstill insulation 5-10 minute at 650-680 ℃, stirred then 2-20 minute, make composition even;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder is handled, direct casting ingot-forming.
The present invention compares with present existing technology has following characteristics:
It is simple, reliable, easy to operate to the invention provides a kind of technology, and the composition of the cast magnesium alloys that is easy to apply and preparation method.
1) this cast magnesium alloys has super-high-plasticity, has high strength simultaneously, and under as-cast condition, it is that 20-35%, tensile strength are 220-250MPa, repeatedly the rolling deformation rate is greater than 80-85% that the alloy behind the optimizing components can obtain unit elongation.
2) tin and aluminium are as alloying element, and the composition range of the application's patent does not appear in the newspapers;
3) adopt castmethod production, technology is simple;
4) adopt low smelting heat and element homogenizing, rise to high temperature refining and scarfing cinder, at utmost reduce oxidization burning loss and pollution;
Embodiment
Embodiment one
(1) taking by weighing starting material by mass percentage is: pure tin 0.5%, and fine aluminium 1%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-0.5Sn-1Al alloy.
Embodiment two
(1) taking by weighing starting material by mass percentage is: pure tin 2%, and fine aluminium 2%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-2Sn-2Al alloy.
Embodiment three
(1) taking by weighing starting material by mass percentage is: pure tin 3%, and fine aluminium 3%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-3Sn-3Al alloy.This alloy casting performance is: unit elongation greater than 30-35%, tensile strength greater than for 230-250MPa, deformation rate greater than 85%.
Embodiment four
(1) taking by weighing starting material by mass percentage is: pure tin 5%, and fine aluminium 2%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-5Sn-2Al alloy.
Embodiment five
(1) taking by weighing starting material by mass percentage is: pure tin 5%, and fine aluminium 4%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-5Sn-4Al alloy.
Embodiment six
(1) taking by weighing starting material by mass percentage is: pure tin 2%, and fine aluminium 4%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-2Sn-4Al alloy.
Embodiment seven
(1) taking by weighing starting material by mass percentage is: pure tin 8%, and fine aluminium 1%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-8Sn-1Al alloy.
Embodiment eight
(1) taking by weighing starting material by mass percentage is: pure tin 8%, and fine aluminium 6%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-8Sn-6Al alloy.
Embodiment nine
(1) taking by weighing starting material by mass percentage is: pure tin 3%, and fine aluminium 6%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-3Sn-6Al alloy.This alloy casting performance is: unit elongation greater than 20-25%, tensile strength greater than being 240-250MPa.
Embodiment ten
(1) taking by weighing starting material by mass percentage is: pure tin 4%, and fine aluminium 3%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-4Sn-3Al alloy.
Embodiment 11
(1) taking by weighing starting material by mass percentage is: pure tin 3%, and fine aluminium 5%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-3Sn-5Al alloy.This alloy deformation rate is greater than 80%.
Embodiment 12
(1) taking by weighing starting material by mass percentage is: pure tin 2%, and fine aluminium 5%, all the other are magnesium;
(2) in the gas shield smelting furnace, the pure magnesium ingot with above-mentioned content is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) respectively with in above-mentioned content and the pure tins and fine aluminium adding magnesium melt, continue to leave standstill insulation 5-10 minute, stirred then 2-20 minute, make composition even at 650-680 ℃ through 200 ℃ of preheatings;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder was handled, directly casting ingot-forming made the Mg-2Sn-5Al alloy.
Claims (3)
1. a super-high-plasticity, cast Mg alloy with high strength is characterized in that the mass percent of the chemical ingredients of this alloy is: tin 0.5-8.0, and aluminium 1.0-6.0, all the other are magnesium.
2. super-high-plasticity according to claim 1, cast Mg alloy with high strength is characterized in that, described tin content mass percent is 2.0-5.0, and aluminium content mass percent is 2.0-4.0;
3. the preparation method of a kind of super-high-plasticity according to claim 1, cast Mg alloy with high strength is characterized in that, this method may further comprise the steps:
(1) gets the raw materials ready according to the magnesium alloy component proportions;
(2) in the gas shield smelting furnace, the pure magnesium ingot that will prepare in proportion is preheated to 350-400 ℃ in crucible earlier, is warming up to 650-680 ℃ then and melts;
(3) that will prepare in proportion respectively and add in the magnesium melt through the pure tin of 200 ℃ of preheatings and fine aluminium, continue to leave standstill insulation 5-10 minute at 650-680 ℃, stirred then 2-20 minute, make composition even;
(4) add No. 2 flux, temperature is warming up to 730-820 ℃, leave standstill insulation 5-10 minute, the blowing argon gas refining, after scarfing cinder is handled, direct casting ingot-forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100674287A CN101643871B (en) | 2009-08-24 | 2009-08-24 | Super-high-plasticity high-strength cast magnesium alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100674287A CN101643871B (en) | 2009-08-24 | 2009-08-24 | Super-high-plasticity high-strength cast magnesium alloy and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101643871A CN101643871A (en) | 2010-02-10 |
| CN101643871B true CN101643871B (en) | 2011-04-13 |
Family
ID=41655932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100674287A Active CN101643871B (en) | 2009-08-24 | 2009-08-24 | Super-high-plasticity high-strength cast magnesium alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101643871B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781729B (en) * | 2010-02-23 | 2011-07-20 | 南京信息工程大学 | Magnesium-based wear-resistant damping alloy material and preparation method thereof |
| KR101342582B1 (en) * | 2011-10-20 | 2013-12-17 | 포항공과대학교 산학협력단 | Non heat treatable magnesium alloy sheet having less segregation and improved room temperature formability |
| CN102517480A (en) * | 2012-01-08 | 2012-06-27 | 吉林大学 | High-work-hardening magnesium alloy and preparation method thereof |
| CN107287483A (en) * | 2017-05-27 | 2017-10-24 | 重庆科技学院 | High plastic magnesium alloy sheet material and its processing method |
| CN109280827A (en) * | 2017-07-19 | 2019-01-29 | 北京普润医疗器械有限公司 | Anastomosis staple and its preparation method and application |
| CN107460351B (en) * | 2017-07-28 | 2019-03-22 | 河南明镁镁业科技有限公司 | A kind of production method of high cleanliness magnesium alloy |
| CN107398548B (en) * | 2017-07-28 | 2019-04-05 | 河南明镁镁业科技有限公司 | A kind of grain refiner of significant Refining Mg Alloy tissue and its preparation and application method |
| CN108004446A (en) * | 2017-12-11 | 2018-05-08 | 于海松 | The synthesis technique of high-ductility magnesium tin alloy |
| CN110777288A (en) * | 2019-12-13 | 2020-02-11 | 陕西易莱德新材料科技有限公司 | High-strength corrosion-resistant magnesium alloy and preparation method thereof |
| CN113862535A (en) * | 2021-10-08 | 2021-12-31 | 青岛海骊准晶新材料科技有限公司 | Magnesium alloy for low temperature, preparation method and application thereof, and cold chain tray |
-
2009
- 2009-08-24 CN CN2009100674287A patent/CN101643871B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101643871A (en) | 2010-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101643871B (en) | Super-high-plasticity high-strength cast magnesium alloy and preparation method thereof | |
| CN101643872B (en) | High-strength high-plasticity magnesium alloy and preparation method thereof | |
| CN104004949B (en) | The preparation method of a kind of high strength magnesium lithium alloy | |
| CN101353747B (en) | Die-casting heat resisting magnesium alloy and preparation thereof | |
| CN102373350B (en) | Preparation method for special aluminum-silicon-magnesium alloy for advanced car wheel hub | |
| CN101985714A (en) | High-plasticity magnesium alloy and preparation method thereof | |
| CN101928847B (en) | Process for smelting magnesium alloy | |
| CN101748299A (en) | Method for manufacturing cast magnesium alloy | |
| CN103602865A (en) | Copper-containing heat-resistant magnesium-tin alloy and preparation method thereof | |
| CN101220433A (en) | High-alumina magnesium alloy | |
| CN106148787A (en) | Magnesium lithium alloy being suitable to sand casting and preparation method thereof | |
| CN107841665A (en) | A kind of high-strength/tenacity aluminum alloy sheet material of scandium containing rare earth and erbium and preparation method thereof | |
| CN104928549A (en) | High-strength and high-elasticity-modulus casting Mg-RE alloy and preparation method thereof | |
| CN106591637A (en) | Aluminum-niobium-boron intermediate alloy and preparation method thereof | |
| CN101838759A (en) | 4032 alloy alterant and use method thereof | |
| CN102162054B (en) | High-toughness magnesium alloy and preparation method thereof | |
| CN1030617C (en) | Al-Fe alloy using for aluminum steel deoxidation and method for prepn. of same | |
| CN101235454A (en) | Quasi-crystal enhancement Mg-Zn-Er heat-resistant magnesium alloy and preparation method thereof | |
| CN107177764A (en) | A kind of high strength and low cost cast magnesium alloy and preparation method thereof | |
| CN101942578A (en) | Magnesium alloy composite flux, preparation thereof and use thereof | |
| CN109628779B (en) | Method for refining eutectic phase of Mg-Al-Zn magnesium alloy with high alloy content | |
| CN114717453B (en) | High-toughness cast aluminum-silicon alloy and preparation method thereof | |
| CN102268579B (en) | Preparation process of heat-resistant Mg-Sr-Zn-Y alloy | |
| CN102304656A (en) | Rare earth heat resistant magnesium alloy with high corrosion resistance | |
| CN1168840C (en) | Multicomponent heat-resistant magnesium alloy for car and its founding process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |