CN107164672B - A kind of super-high heat-conductive magnesium alloy - Google Patents
A kind of super-high heat-conductive magnesium alloy Download PDFInfo
- Publication number
- CN107164672B CN107164672B CN201710350352.3A CN201710350352A CN107164672B CN 107164672 B CN107164672 B CN 107164672B CN 201710350352 A CN201710350352 A CN 201710350352A CN 107164672 B CN107164672 B CN 107164672B
- Authority
- CN
- China
- Prior art keywords
- pure
- magnesium
- ingot
- magnesium alloy
- casting
- 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
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- 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
- C22C23/04—Alloys based on magnesium with zinc or cadmium as the next major constituent
-
- 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
Abstract
The invention discloses a kind of super-high heat-conductive magnesium alloys, are made of following components content: Zn 0.01~1.0wt%, Cu 0.01~0.095wt% of 0.01~0.2wt%, Ag, remaining is Mg.Super-high heat-conductive magnesium alloy provided by the invention is prepared by fusion process and two step of last handling process.At 20 °C, thermal conductivity is greater than 140W (mK) to the magnesium alloy‑1, tensile strength is greater than 305Mpa, yield strength is greater than 290Mpa, has had both high thermal conductivity and high-intensitive advantage, may be used as the cooling system structure material of power supply in aerospace equipment of new generation, electronic device.
Description
Technical field:
The present invention relates to alloy preparation fields, are specifically related to a kind of super-high heat-conductive magnesium alloy.
Background technique:
With the fast continual development of aerospace, to leading for the cooling system structure material of line related, electronic device
Performance requirements are higher and higher, while must also have that density is small, intensity meets service demand.Therefore, super-high heat-conductive magnesium alloy
With important application background.
The thermal coefficient of pure magnesium is 155W (mK)-1, intensity is about 100MPa or so；After alloying, intensity is substantially
Degree improves, and thermal coefficient significantly reduces.Such as according to U.S.'s magnesium and alloy handbook, the magnesium alloy AZ81 containing aluminium, zinc, at 20 DEG C
Thermal coefficient is 51.1W (mK) -1, is only the 33% of pure magnesium；Magnesium-rare earth WE43, thermal coefficient at 20 DEG C are
51.3W (mK) -1 is also only the 33% of pure magnesium；Current existing high thermal conductivity magnesium alloy, for example, M1A, M1C, M2M, M2S,
ME20M, ZM21M and ZM21N, highest thermal conductivity are 127W (mK) -1, are less than 130W (mK) -1, about pure magnesium
82%, still have big gap apart from super-high heat-conductive magnesium alloy, therefore, how to be made high thermal conductivity and the high-intensitive magnesium alloy to get both at
For the widely applied key of magnesium alloy.
Summary of the invention:
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of super-high heat-conductive magnesium alloys, not only have
Excellent tensile strength, and thermal coefficient is greater than 140W (mK)-1。
To achieve the above object, the invention adopts the following technical scheme:
A kind of super-high heat-conductive magnesium alloy, the magnesium alloy are composed of the following components:
Zn 0.01~0.2wt% of 0.01~1.0wt%, Cu,
0.01~0.095wt% of Ag, remaining is Mg.
As a preferred embodiment of the above technical solution, the content of Zn is 0.3~0.7wt%.
As a preferred embodiment of the above technical solution, the content of Cu is 0.07~0.15wt%.
As a preferred embodiment of the above technical solution, the content of Ag is 0.07~0.095wt%.
The preparation method of super-high heat-conductive magnesium alloy provided by the invention the following steps are included:
(1) it using pure magnesium ingot, pure Zn ingot, cathode copper, pure Ag ingot or Mg-Ag intermediate alloy as raw material, is closed by above-mentioned magnesium
The weight percent of the ingredient of gold is stocked up；
(2) whole pure magnesium ingots are placed in the fusion crucible in melting furnace in a manner of close as far as possible, in protective gas
It is completely melt under protection, magnesium melt temperature is controlled at 680~750 DEG C, the dross of molten surface is cleared up；
(3) preheating furnace is warming up to 160~580 DEG C, pure Zn ingot, cathode copper, pure Ag ingot or Mg-Ag intermediate alloy is put
Enter in the basket that feeds, charging basket is made of mild steel or high chrome, a large amount of aperture is thick with thereon, by above-mentioned raw materials together with holding
The charging basket of these raw materials is put into togerther in preheating furnace, is preheating to 100~580 DEG C；
(4) by pure Zn ingot, cathode copper, pure Ag ingot or the Mg-Ag intermediate alloy after preheating together with holding these raw materials
Charging basket submerges in magnesium melt together, convenient for the dissolution and diffusion of Zn, cathode copper, Ag Mg-Ag intermediate alloy；
(5) magnesium melt temperature is controlled at 700~710 DEG C, it is complete to Zn, cathode copper, pure Ag ingot or Mg-Ag intermediate alloy
After fully dissolved, charging basket is taken out, then keep the temperature 10~30 minutes at 710 DEG C, all alloying elements is made to be evenly distributed on magnesium melt
In；Later, spectrum samples are poured, on-the-spot sample analysis is carried out, charging adjustment are decided whether according to the ingredient of sample and content, until magnesium
Alloy molten solution reaches the ingredient and content of magnesium alloy of the present invention；
(6) magnesium alloy melt is poured into the metal casting mould or sand mold casting mold being fully warmed-up and is solidified
At casting；Or magnesium alloy melt is poured into extrusion casting machine or die casting machine in batches according to casting weight, extrusion casint or
It is cast into casting；Or use low-pressure casting process by magnesium alloy cast at casting.
The process for preparing heat conductive magnesium alloy of the present invention further includes last handling process, wherein last handling process can be divided into two kinds:
One is post-processing to the casting after casting, another kind is post-processed to the billet after casting, therefore, because different
The method that last handling process prepares heat conductive magnesium alloy of the invention is also classified into two kinds, above-mentioned to prepare heat conductive magnesium alloy of the invention
Method be it is one such, be the first heat conductive magnesium alloy of the invention method.
The detailed process of heat conductive magnesium alloy of the present invention is prepared using second of post-processing approach are as follows:
A method of preparing heat conductive magnesium alloy of the invention, wherein fusion process and the first thermally conductive magnesium of the invention
The step of method of alloy (1)-(5) are identical, therefore omit, step (6)-(8) are as follows:
(6) magnesium alloy melt is poured into the metal casting mould or sand mold casting mold being fully warmed-up and is solidified
It is transported in crystallizer at the billet for deformation after unloading processing, or by magnesium alloy melt, is continuously or semi-continuously cast,
It is prepared into the billet for deformation after unloading processing；
(7) billet prepared by above-mentioned steps is subjected to homogenization heat treatment, homogenization heat treatment process is to add billet
Then heat directlys adopt rolling, extruding, drawn or swaged process distortions are processed into plate to 350~400 DEG C, heat preservation 3~20 hours
Material, tubing, profile, bar, wire rod or various forging use extruding or drawing process by billet deformation processing at bar or line
Material, or billet is processed into plate with rolling deformation, or billet is processed into tubing or profile using being squeezed and deformed, or using forging
Billet is forged into forging by press；
(8) by deformation processing at plate, tubing, profile, bar, wire rod or various forging carry out at deformation at room temperature reinforcing
Reason, deformation at room temperature intensive treatment process are the modelings for applying 0.5~5 to plate, tubing, profile, bar, wire rod or various forging
Property deformation.
In the method for preparing heat conductive magnesium alloy of the invention, in the step (2), pure magnesium ingot is in protective gas
It is uniformly to sprinkle sulphur powder in crucible bottom and pure magnesium ingot surface, the amount of sulphur powder is with energy after oxidizing fire in the lower fusing of protection
Oxygen in crucible is completely converted into subject to sulfur dioxide, with crucible cover by crucible, heat temperature raising makes whole pure magnesium ingots exist
It is completely melt under the protection of the nitrogen of sulfur dioxide and remaining after combustion, then opens crucible cover.
Wherein the dosage of sulphur powder can be estimated substantially as follows: the oxidizing fire reaction of sulphur is S+O2=SO2, the atom of S
Amount and O2Molecular weight be all 32, i.e., the dosage of sulphur powder is equal with the oxygen content in the external space with material in crucible；Oxygen is in sky
1/5 is accounted about in gas, and atmospheric density is about 1 grams per liter；Such as the space in crucible other than material is 200 liters, wherein oxygen
Gas be 40 liters, i.e., 40 grams, thus the dosage of sulphur powder be 40 grams.In addition, a small amount of remaining oxygen or sulphur are molten to magnesium alloy
The influence of refining can be ignored.In actual operation, according to the total volume of the volume of crucible and pure magnesium ingot, material in crucible is calculated
Space in addition, and according to the space other than material in crucible, calculate oxygen weight and sulphur powder weight.
In the method for preparing heat conductive magnesium alloy of the invention, in the step (2), the protection that is passed through to melting furnace
Gas preferably contains 0.2~0.5 volume %SF6N2, referred to as protective gas (0.2~0.5%SF6+N2)。
Compared with prior art, the invention has the following advantages that
The present invention rationally adjusts preparation method by rationally adjusting the percentage composition ratio of each element in magnesium alloy, makes
At 20 °C, thermal conductivity is greater than 140W (mK) to the magnesium alloy obtained-1, it is big that tensile strength is greater than 305Mpa, yield strength
In 290Mpa, the cooling system structure material of power supply in aerospace equipment of new generation, electronic device, Er Qieben may be used as
The preparation method operation for inventing use is simpler, and low energy consumption, and preparation cost substantially reduces.
Specific embodiment:
In order to better understand the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solving
The present invention is released, any restriction will not be constituted to the present invention.
Embodiment 1
A kind of super-high heat-conductive magnesium alloy, the magnesium alloy are composed of the following components:
Zn 0.01wt%, Cu 0.03wt%,
Ag 0.05wt%, remaining is Mg.
Preparation method includes the following steps:
(1) it with pure magnesium ingot, pure Zn ingot, cathode copper, pure Ag ingot, is carried out by the weight percent of above-mentioned magnesium alloy ingredient standby
Material；
(2), whole pure magnesium ingots are piled up in a manner of close as far as possible in the fusion crucible in melting furnace, in crucible bottom
One layer of sulphur powder is uniformly sprinkled with pure magnesium ingot surface, the oxygen in crucible can be completely converted by the amount of sulphur powder after oxidizing fire
It subject to sulfur dioxide, is completely melt under the protection of protective gas, magnesium melt temperature is controlled at 680~750 DEG C, by melt table
The dross in face is cleaned out, and is passed through protective gas to melting furnace；
(3), preheating furnace is warming up to 160~580 DEG C, pure Zn ingot, cathode copper, pure Ag ingot is put into charging basket, charging
Basket is made of mild steel or high chrome, a large amount of aperture is thick with thereon, by above-mentioned raw materials together with the charging for holding these raw materials
Basket is put into togerther in preheating furnace, is preheating to 100~580 DEG C；
(4), pure Zn ingot, cathode copper, the pure Ag ingot after preheating together with the charging basket for holding these raw materials are submerged into magnesium
In melt, convenient for the dissolution and diffusion of Zn, cathode copper, Ag；
(5), magnesium melt temperature is controlled at 700~720 DEG C, after Zn, cathode copper, Ag are completely dissolved, takes out charging basket,
10~30 minutes are kept the temperature at 710~720 DEG C again, is evenly distributed on all alloying elements in magnesium melt；Later, casting spectrum examination
Sample carries out on-the-spot sample analysis, decides whether charging adjustment according to the ingredient of sample and content, until magnesium alloy melt reaches the present invention
Magnesium alloy ingredient and content；
(6) magnesium alloy melt is transported in crystallizer, carries out semi-continuous casting, is prepared into for deformation after unloading processing
Billet；
(7) billet prepared by above-mentioned steps is subjected to homogenization heat treatment, homogenization heat treatment process is to add billet
Then heat directlys adopt rolling, extruding, drawn or swaged process distortions are processed into plate to 350~400 DEG C, heat preservation 3~20 hours
Material；
(8), by deformation processing at plate carry out deformation at room temperature intensive treatment, deformation at room temperature intensive treatment process is pair
Plate applies 0.5~5 plastic deformation.
Through detecting, plate produced by the present invention has the following performance at 20 °C: thermal coefficient 142W (mk)-1,
Tensile strength is 320MPa, yield strength 300MPa.
Embodiment 2
A kind of super-high heat-conductive magnesium alloy, the magnesium alloy are composed of the following components:
Zn 1.0wt%, Cu 0.01wt%,
Ag 0.01wt%, remaining is Mg.
Preparation method includes the following steps:
(1) it with pure magnesium ingot, pure Zn ingot, cathode copper, pure Ag ingot, is carried out by the weight percent of the ingredient of above-mentioned magnesium alloy standby
Material；
(2), whole pure magnesium ingots are piled up in a manner of close as far as possible in the fusion crucible in melting furnace, in crucible bottom
One layer of sulphur powder is uniformly sprinkled with pure magnesium ingot surface, the oxygen in crucible can be completely converted by the amount of sulphur powder after oxidizing fire
It subject to sulfur dioxide, is completely melt under the protection of protective gas, magnesium melt temperature is controlled at 680~750 DEG C, by melt table
The dross in face is cleaned out, and is passed through protective gas to melting furnace；
(3), preheating furnace is warming up to 160~580 DEG C, pure Zn ingot, cathode copper, pure Ag ingot is put into charging basket, charging
Basket is made of mild steel or high chrome, a large amount of aperture is thick with thereon, by above-mentioned raw materials together with the charging for holding these raw materials
Basket is put into togerther in preheating furnace, is preheating to 100~580 DEG C；
(4), pure Zn ingot, cathode copper, the pure Ag ingot after preheating together with the charging basket for holding these raw materials are submerged into magnesium
In melt, convenient for the dissolution and diffusion of Zn, cathode copper, Ag；
(5), magnesium melt temperature is controlled at 700~720 DEG C, after Zn, cathode copper, Ag are completely dissolved, takes out charging basket,
10~30 minutes are kept the temperature at 710~720 DEG C again, is evenly distributed on all alloying elements in magnesium melt；Later, casting spectrum examination
Sample carries out on-the-spot sample analysis, decides whether charging adjustment according to the ingredient of sample and content, until magnesium alloy melt reaches the present invention
Magnesium alloy ingredient and content；
(6) magnesium alloy melt is transported in crystallizer, carries out continuously casting, is prepared into the base for deformation after unloading processing
Ingot；
(7) billet prepared by above-mentioned steps is subjected to homogenization heat treatment, homogenization heat treatment process is to add billet
Then heat directlys adopt rolling, extruding, drawn or swaged process distortions are processed into pipe to 350~400 DEG C, heat preservation 3~20 hours
Material；
(8), by deformation processing at tubing carry out deformation at room temperature intensive treatment, deformation at room temperature intensive treatment process is pair
Tubing applies 0.5~5 plastic deformation.
Through detecting, tubing produced by the present invention has the following performance at 20 °C: thermal coefficient 145W (mk)-1,
Tensile strength is 319MPa, yield strength 300MPa.
Embodiment 3
A kind of super-high heat-conductive magnesium alloy, the magnesium alloy are composed of the following components:
Zn 0.5wt%, Cu 0.2wt%,
Ag 0.095wt%, remaining is Mg.
Preparation method includes the following steps:
(1) with pure magnesium ingot, pure Zn ingot, cathode copper, Mg-Ag intermediate alloy, by the weight percent of the ingredient of above-mentioned magnesium alloy
Than stocking up；
(2), whole pure magnesium ingots are piled up in a manner of close as far as possible in the fusion crucible in melting furnace, in crucible bottom
One layer of sulphur powder is uniformly sprinkled with pure magnesium ingot surface, the oxygen in crucible can be completely converted by the amount of sulphur powder after oxidizing fire
It subject to sulfur dioxide, is completely melt under the protection of protective gas, magnesium melt temperature is controlled at 680~750 DEG C, by melt table
The dross in face is cleaned out, and is passed through protective gas to melting furnace；
(3), preheating furnace is warming up to 160~580 DEG C, pure Zn ingot, cathode copper, Mg-Ag intermediate alloy is put into charging basket
In, charging basket is made of mild steel or high chrome, a large amount of aperture is thick with thereon, by above-mentioned raw materials together with holding these raw materials
Charging basket be put into togerther in preheating furnace, be preheating to 100~580 DEG C；
(4), by after preheating pure Zn ingot, cathode copper, Mg-Ag intermediate alloy is together with the charging basket for holding these raw materials
It submerges in magnesium melt, convenient for the dissolution and diffusion of Zn, cathode copper, Mg-Ag intermediate alloy；
(5), magnesium melt temperature is controlled at 700~720 DEG C, after Zn, cathode copper, Mg-Ag intermediate alloy are completely dissolved,
Charging basket is taken out, then keeps the temperature 10~30 minutes at 710~720 DEG C, is evenly distributed on all alloying elements in magnesium melt；It
Afterwards, spectrum samples are poured, on-the-spot sample analysis is carried out, charging adjustment are decided whether according to the ingredient of sample and content, until magnesium alloy
Melt reaches the ingredient and content of magnesium alloy of the invention；
(6) magnesium alloy melt is poured into the metal casting mould or sand mold casting mold being fully warmed-up and is solidified
At the billet for deformation after unloading processing；
(7) billet prepared by above-mentioned steps is subjected to homogenization heat treatment, homogenization heat treatment process is to add billet
Then heat directlys adopt rolling, extruding, drawn or swaged process distortions machine-shaping to 350~400 DEG C, heat preservation 3~20 hours
Material；
(8), by deformation processing at profile carry out deformation at room temperature intensive treatment, deformation at room temperature intensive treatment process is pair
Profile applies 0.5~5 plastic deformation.
Through detecting, profile produced by the present invention has the following performance at 20 °C: thermal coefficient 142W (mk)-1,
Tensile strength is 330MPa, yield strength 305MPa.
Embodiment 4
A kind of super-high heat-conductive magnesium alloy, the magnesium alloy are composed of the following components:
Zn 0.2wt%, Cu 0.1wt%,
Ag 0.05wt%, remaining is Mg.
Preparation method includes the following steps:
(1) with pure magnesium ingot, pure Zn ingot, cathode copper, Mg-Ag intermediate alloy ingot, by the weight hundred of the ingredient of above-mentioned magnesium alloy
Ratio is divided to stock up；
(2), whole pure magnesium ingots are piled up in a manner of close as far as possible in the fusion crucible in melting furnace, in crucible bottom
One layer of sulphur powder is uniformly sprinkled with pure magnesium ingot surface, the oxygen in crucible can be completely converted by the amount of sulphur powder after oxidizing fire
It subject to sulfur dioxide, is completely melt under the protection of protective gas, magnesium melt temperature is controlled at 680~750 DEG C, by melt table
The dross in face is cleaned out, and is passed through protective gas to melting furnace；
(3), preheating furnace is warming up to 160~580 DEG C, pure Zn ingot, cathode copper, Mg-Ag intermediate alloy is put into charging basket
In, charging basket is made of mild steel or high chrome, a large amount of aperture is thick with thereon, by above-mentioned raw materials together with holding these raw materials
Charging basket be put into togerther in preheating furnace, be preheating to 100~580 DEG C；
(4), by after preheating pure Zn ingot, cathode copper, Mg-Ag intermediate alloy is together with the charging basket for holding these raw materials
It submerges in magnesium melt, convenient for the dissolution and diffusion of Zn, cathode copper, Mg-Ag intermediate alloy；
(5), magnesium melt temperature is controlled at 700~720 DEG C, after Zn, cathode copper, Mg-Ag intermediate alloy are completely dissolved,
Charging basket is taken out, then keeps the temperature 10~30 minutes at 710~720 DEG C, is evenly distributed on all alloying elements in magnesium melt；It
Afterwards, spectrum samples are poured, on-the-spot sample analysis is carried out, charging adjustment are decided whether according to the ingredient of sample and content, until magnesium alloy
Melt reaches the ingredient and content of magnesium alloy of the invention；
(6) magnesium alloy melt is poured into the metal casting mould or sand mold casting mold being fully warmed-up and is solidified
At the billet for deformation after unloading processing；
(7) billet prepared by above-mentioned steps is subjected to homogenization heat treatment, homogenization heat treatment process is to add billet
Then heat directlys adopt rolling, extruding, drawn or swaged process distortions are processed into stick to 350~400 DEG C, heat preservation 3~20 hours
Material；
(8), by deformation processing at bar carry out deformation at room temperature intensive treatment, deformation at room temperature intensive treatment process is pair
Bar applies 0.5~5 plastic deformation.
Through detecting, bar produced by the present invention has the following performance at 20 °C: thermal coefficient 148W (mk)-1,
Tensile strength is 320MPa, yield strength 295MPa.
Embodiment 5
A kind of super-high heat-conductive magnesium alloy, the magnesium alloy are composed of the following components:
Zn 0.07wt%, Cu 0.15wt%,
Ag 0.03wt%, remaining is Mg.
Preparation method includes the following steps:
(1) with pure magnesium ingot, pure Zn ingot, cathode copper, Mg-Ag intermediate alloy ingot, by the weight hundred of the ingredient of above-mentioned magnesium alloy
Ratio is divided to stock up；
(2), whole pure magnesium ingots are piled up in a manner of close as far as possible in the fusion crucible in melting furnace, in crucible bottom
One layer of sulphur powder is uniformly sprinkled with pure magnesium ingot surface, the oxygen in crucible can be completely converted by the amount of sulphur powder after oxidizing fire
It subject to sulfur dioxide, is completely melt under the protection of protective gas, magnesium melt temperature is controlled at 680~750 DEG C, by melt table
The dross in face is cleaned out, and is passed through protective gas to melting furnace；
(3), preheating furnace is warming up to 160~580 DEG C, pure Zn ingot, cathode copper, Mg-Ag intermediate alloy is put into charging basket
In, charging basket is made of mild steel or high chrome, a large amount of aperture is thick with thereon, by above-mentioned raw materials together with holding these raw materials
Charging basket be put into togerther in preheating furnace, be preheating to 100~580 DEG C；
(4), by after preheating pure Zn ingot, cathode copper, Mg-Ag intermediate alloy is together with the charging basket for holding these raw materials
It submerges in magnesium melt, convenient for the dissolution and diffusion of Zn, cathode copper, Mg-Ag intermediate alloy；
(5), magnesium melt temperature is controlled at 700~720 DEG C, after Zn, cathode copper, Mg-Ag intermediate alloy are completely dissolved,
Charging basket is taken out, then keeps the temperature 10~30 minutes at 710~720 DEG C, is evenly distributed on all alloying elements in magnesium melt；It
Afterwards, spectrum samples are poured, on-the-spot sample analysis is carried out, charging adjustment are decided whether according to the ingredient of sample and content, until magnesium alloy
Melt reaches the ingredient and content of magnesium alloy of the invention；
(6) magnesium alloy melt is poured into extrusion casting machine or die casting machine in batches according to casting weight, extrusion casint or
It is cast into casting, and casting is post-processed.
Through detecting, casting produced by the present invention has the following performance at 20 °C: thermal coefficient 145W (mk)-1,
Tensile strength is 320MPa, yield strength 310MPa.
Embodiment 6
A kind of super-high heat-conductive magnesium alloy, the magnesium alloy are composed of the following components:
Zn 0.35wt%, Cu 0.12wt%,
Ag 0.08wt%, remaining is Mg.
Preparation method includes the following steps:
(1) with pure magnesium ingot, pure Zn ingot, cathode copper, Mg-Ag intermediate alloy ingot, by the weight hundred of the ingredient of above-mentioned magnesium alloy
Ratio is divided to stock up；
(2), whole pure magnesium ingots are piled up in a manner of close as far as possible in the fusion crucible in melting furnace, in crucible bottom
One layer of sulphur powder is uniformly sprinkled with pure magnesium ingot surface, the oxygen in crucible can be completely converted by the amount of sulphur powder after oxidizing fire
It subject to sulfur dioxide, is completely melt under the protection of protective gas, magnesium melt temperature is controlled at 680~750 DEG C, by melt table
The dross in face is cleaned out, and is passed through protective gas to melting furnace；
(3), preheating furnace is warming up to 160~580 DEG C, pure Zn ingot, cathode copper, Mg-Ag intermediate alloy is put into charging basket
In, charging basket is made of mild steel or high chrome, a large amount of aperture is thick with thereon, by above-mentioned raw materials together with holding these raw materials
Charging basket be put into togerther in preheating furnace, be preheating to 100~580 DEG C；
(4), by after preheating pure Zn ingot, cathode copper, Mg-Ag intermediate alloy is together with the charging basket for holding these raw materials
It submerges in magnesium melt, convenient for the dissolution and diffusion of Zn, cathode copper, Mg-Ag intermediate alloy；
(5), magnesium melt temperature is controlled at 700~720 DEG C, after Zn, cathode copper, Mg-Ag intermediate alloy are completely dissolved,
Charging basket is taken out, then keeps the temperature 10~30 minutes at 710~720 DEG C, is evenly distributed on all alloying elements in magnesium melt；It
Afterwards, spectrum samples are poured, on-the-spot sample analysis is carried out, charging adjustment are decided whether according to the ingredient of sample and content, until magnesium alloy
Melt reaches the ingredient and content of magnesium alloy of the invention；
(6) magnesium alloy melt is poured into extrusion casting machine or die casting machine in batches according to casting weight, extrusion casint or
It is cast into casting, and casting is post-processed.
Through detecting, casting produced by the present invention has the following performance at 20 °C: thermal coefficient 147W (mk)-1,
Tensile strength is 325MPa, yield strength 300MPa.
Claims (3)
1. a kind of super-high heat-conductive magnesium alloy, which is characterized in that the magnesium alloy is composed of the following components:
Zn 0.07~0.15wt% of 0.3~0.7wt%, Cu,
0.01~0.095wt% of Ag, remaining is Mg；
Preparation method includes the following steps:
(1) using pure magnesium ingot, pure Zn ingot, cathode copper, pure Ag ingot or Mg-Ag intermediate alloy as raw material, by above-mentioned magnesium alloy
The weight percent of ingredient is stocked up；
(2) whole pure magnesium ingots are placed in a tightening way in the fusion crucible in melting furnace, it is complete under the protection of protective gas
Magnesium melt temperature is controlled at 680~750 DEG C, clears up the dross of molten surface by running down；
(3) preheating furnace is warming up to 160~580 DEG C, pure Zn ingot, cathode copper, pure Ag ingot or Mg-Ag intermediate alloy is put into and added
In charging basket, charging basket is made of mild steel or high chrome, a large amount of aperture is thick with thereon, by above-mentioned raw materials together with holding these
The charging basket of raw material is put into togerther in preheating furnace, is preheating to 100~580 DEG C；
(4) by pure Zn ingot, cathode copper, pure Ag ingot or the Mg-Ag intermediate alloy after preheating together with the charging for holding these raw materials
Basket submerges in magnesium melt together, convenient for the melting and diffusion of pure Zn ingot, cathode copper, pure Ag ingot or Mg-Ag intermediate alloy；
(5) magnesium melt temperature is controlled at 700~710 DEG C, it is complete to pure Zn ingot, cathode copper, pure Ag ingot or Mg-Ag intermediate alloy
After fully dissolved, charging basket is taken out, then keep the temperature 10~30 minutes at 710 DEG C, all alloying elements is made to be evenly distributed on magnesium melt
In；Later, spectrum samples are poured, on-the-spot sample analysis is carried out, charging adjustment are decided whether according to the ingredient of sample and content, until magnesium
Alloy molten solution reaches the ingredient and content of the magnesium alloy；
(6) magnesium alloy melt is poured into the metal casting mould or sand mold casting mold being fully warmed-up and is frozen into casting
Part；Or magnesium alloy melt is poured into extrusion casting machine or die casting machine in batches according to casting weight, extrusion casint or die casting
At casting；Or use low-pressure casting process by magnesium alloy cast at casting.
2. a kind of super-high heat-conductive magnesium alloy as described in claim 1, which is characterized in that the content of Ag is 0.07~
0.095wt%.
3. a kind of super-high heat-conductive magnesium alloy as described in claim 1, which is characterized in that the thermal coefficient of the magnesium alloy is greater than
140W·(m·K)-1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710350352.3A CN107164672B (en) | 2017-05-18 | 2017-05-18 | A kind of super-high heat-conductive magnesium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710350352.3A CN107164672B (en) | 2017-05-18 | 2017-05-18 | A kind of super-high heat-conductive magnesium alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107164672A CN107164672A (en) | 2017-09-15 |
| CN107164672B true CN107164672B (en) | 2019-10-22 |
Family
ID=59815107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710350352.3A Active CN107164672B (en) | 2017-05-18 | 2017-05-18 | A kind of super-high heat-conductive magnesium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107164672B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113503A (en) * | 2007-09-06 | 2008-01-30 | 北京有色金属研究总院 | Heat conductive magnesium alloy and method for preparing same |
| CN101113504A (en) * | 2007-09-06 | 2008-01-30 | 北京有色金属研究总院 | Heat conductive magnesium alloy and method for preparing same |
| CN101709418A (en) * | 2009-11-23 | 2010-05-19 | 北京有色金属研究总院 | Thermally conductive magnesium alloy and preparation method thereof |
| CN101792878A (en) * | 2009-02-01 | 2010-08-04 | 北京有色金属研究总院 | Heat-conducting and corrosion-resistant magnesium alloy and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB875929A (en) * | 1958-05-16 | 1961-08-23 | Stone & Company Charlton Ltd J | Improvements in or relating to magnesium base alloys |
| CN101225521A (en) * | 2007-01-16 | 2008-07-23 | 维恩克材料技术（北京）有限公司 | Water heater magnesium-alloy anode material having sterilization function |
| CN103774014B (en) * | 2014-01-18 | 2016-03-30 | 中南大学 | A kind of forming technology of middle strength heatproof magnesium alloy slab |
| CN103774015B (en) * | 2014-01-18 | 2016-01-20 | 中南大学 | A kind of forming technology of middle strength heatproof magnesium alloy triangular section |
-
2017
- 2017-05-18 CN CN201710350352.3A patent/CN107164672B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113503A (en) * | 2007-09-06 | 2008-01-30 | 北京有色金属研究总院 | Heat conductive magnesium alloy and method for preparing same |
| CN101113504A (en) * | 2007-09-06 | 2008-01-30 | 北京有色金属研究总院 | Heat conductive magnesium alloy and method for preparing same |
| CN101792878A (en) * | 2009-02-01 | 2010-08-04 | 北京有色金属研究总院 | Heat-conducting and corrosion-resistant magnesium alloy and preparation method thereof |
| CN101709418A (en) * | 2009-11-23 | 2010-05-19 | 北京有色金属研究总院 | Thermally conductive magnesium alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107164672A (en) | 2017-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101709418B (en) | Thermally conductive magnesium alloy and preparation method thereof | |
| CN100513606C (en) | Heat conductive magnesium alloy and method for preparing the same | |
| CN105463269B (en) | High-strength, highly corrosion resistant cast aluminium alloy gold and its compression casting preparation method | |
| CN101792878B (en) | Heat-conducting and corrosion-resistant magnesium alloy and preparation method thereof | |
| CN102127665B (en) | Al-Zn-Mg-Cu-Sc-Zr-RE alloy capable of being used as ultrahigh-strength cast aluminum alloy | |
| KR101080164B1 (en) | Ignition-proof magnesium alloy with excellent mechanical properties and method for manufacturing the ignition-proof magnesium alloy | |
| CN101835915B (en) | Alloy composition and preparation thereof | |
| CN109338176A (en) | A kind of high intensity high thermal conductivity cast aluminium alloy gold and preparation method thereof | |
| CN100575522C (en) | Heat conductive magnesium alloy and preparation method thereof | |
| KR101264219B1 (en) | Mg alloy and the manufacturing method of the same | |
| CN101914713B (en) | Oversized high-strength heatproof magnesium alloy ingot blank semicontinuous casting technique | |
| EP2885437B1 (en) | Al-nb-b master alloy for grain refining | |
| CN100513607C (en) | Heat conductive magnesium alloy and method for preparing the same | |
| JP6229130B2 (en) | Cast aluminum alloy and casting using the same | |
| CN108330362A (en) | A kind of the high-strength temperature-resistant casting Al-Cu alloy and preparation process of low porosity | |
| CN104152761A (en) | Sc-containing Al-Zn-Mg-Cu-Zr alloy and preparation method thereof | |
| CN104152769A (en) | Heat conduction magnesium alloy and manufacturing method thereof | |
| CN102021428B (en) | Sc-RE aluminium alloy material with high strength and heat resistance and preparation method thereof | |
| Alexopoulos et al. | The effect of Cu, Ag, Sm and Sr additions on the statistical distributions of Si particles and tensile properties in A357–T6 alloy castings | |
| CN102277521B (en) | High-temperature high-tenacity single-phase solid-solution magnesium rare earth base alloy and preparation method thereof | |
| CN109666832A (en) | High-intensity thermal deformation resistant magnesium alloy and preparation method thereof | |
| CN107164672B (en) | A kind of super-high heat-conductive magnesium alloy | |
| CN113652565B (en) | Preparation method of high-strength high-thermal-conductivity magnesium alloy | |
| CN104694782B (en) | A kind of preparation method of the wear-resisting extruded zinc alloy of high-strength and high ductility | |
| CN115491558A (en) | Die-casting magnesium alloy and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230327 Address after: 312500, No.1, Aofeng Road, Xinchang Industrial Park, Shaoxing City, Zhejiang Province Patentee after: WANFENG MEIRUIDING NEW MATERIAL TECHNOLOGY CO.,LTD. Address before: 312500 Xinchang Industrial Zone (Houxi), Chengguan Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: Wanfeng Auto Holding Group Co.,Ltd. |
|
| TR01 | Transfer of patent right |