CN107201473A - A kind of magnesium alloy and preparation method thereof, cavity body filter - Google Patents
A kind of magnesium alloy and preparation method thereof, cavity body filter Download PDFInfo
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- CN107201473A CN107201473A CN201710424890.2A CN201710424890A CN107201473A CN 107201473 A CN107201473 A CN 107201473A CN 201710424890 A CN201710424890 A CN 201710424890A CN 107201473 A CN107201473 A CN 107201473A
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- zirconium
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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
- C22C23/06—Alloys based on magnesium with a rare earth metal 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a kind of magnesium alloy and preparation method thereof, cavity body filter.The magnesium alloy includes the component of following percentage by weight：Samarium 1.5~3.5%, zirconium 0.2%~1.0%, silver 0.01%~0.1%, surplus is magnesium.The magnesium alloy of the present invention improves the casting character of magnesium alloy, while enhancing mechanical strength and heat conductivility of magnesium alloy etc. by adding a small amount of samarium, zirconium and silver in magnesium；And the preparation method of the magnesium alloy is simple；The cavity and lid of the cavity body filter of the present invention are made of above-mentioned magnesium alloy in addition, cavity body filter is had the advantages that light weight, good mechanical property, good heat dissipation, are substantially reduced the production cost of wave filter, and are easily assembled, manufacture.
Description
Technical field
The present invention relates to technical field of micro communication, a kind of magnesium alloy and preparation method thereof, cavity filtering are specifically related to
Device.
Background technology
In the base station system of mobile communication, the carrying communication number in particular frequency range is generally launched by transmitting antenna
According to signal of communication, and signal of communication is received by reception antenna.Above-mentioned spy is not only included in the signal received by reception antenna
Determine the signal of communication of the carrying communication data in frequency range, but also including the clutter outside many above-mentioned particular frequency ranges or
Interference signal.The carrying communication number in the particular frequency range of transmitting antenna transmitting is obtained in the signal to be received from reception antenna
According to signal of communication, it usually needs the signal for receiving the reception antenna is filtered by wave filter, by the carrying communicate number
According to signal of communication specific frequency outside clutter or interference signal filter out.
At present, cavity body filter is generally used in base station system.And the cavity body filter generally uses aluminium, copper or aluminium alloy
Make.Because the density of aluminium, copper or aluminium alloy is larger, the weight for the cavity body filter being made from it is also larger, and then makes cavity
Wave filter is unfavorable for transporting, install and dismantling, while also being had higher requirements to the support for installing the cavity body filter.
The content of the invention
In view of this, a kind of magnesium alloy that the present invention is provided and preparation method thereof, cavity body filter, preferably overcome
State the problem of prior art is present and defect, by using with light weight, high heat conduction, high intensity magnesium alloy, with conventional aluminum
Alloy cavity body filter is compared, and substantially reduces cavity body filter production cost, and be easy to the installation, dismounting, fortune of cavity body filter
It is defeated etc..
A kind of magnesium alloy, includes the component of following percentage by weight：Samarium 1.5~3.5%, zirconium 0.2%~1.0%, silver
0.01%~0.1%, surplus is magnesium.
Further, the component of the magnesium alloy also includes impurity；The percentage by weight of the impurity is less than 0.05%；Institute
Stating impurity includes the one or more in iron, nickel and copper.
Present invention also offers a kind of preparation method of magnesium alloy, comprise the following steps：
Step 1: providing raw material：Magnesium ingot, magnesium-samarium intermediate alloy, magnesium-zirconium intermediate alloy and silver-magnesium intermediate alloy, and press
The raw material is weighed according to the percentage by weight of component in above-mentioned magnesium alloy；
Step 2: the magnesium ingot is heated under the protection of argon gas to be completely melt；It is 700~750 to treat magnesium melt temperature
DEG C when, the magnesium-samarium intermediate alloy is added, until the magnesium-samarium intermediate alloy is completely melt；Then heat to 750~800 DEG C
When, the magnesium-zirconium intermediate alloy is added, after the magnesium-zirconium intermediate alloy is completely melt, silver-magnesium intermediate alloy is added, directly
To being completely melt；
Step 3: the alloy molten solution obtained by step 2 is refined.
Further, after the step one and before the step 2, in addition to the raw material is polished.
Further, in the step 2, the magnesium ingot is using heating plasma to being completely melt.
Further, in the step 3：The refining is specifically included：Argon gas is passed through in the alloy solution and carries out essence
Refining；Then degasification and slag inclusion.
Present invention also offers a kind of cavity body filter, including cavity, cover plate and resonant rod, the cavity and the cover plate
The resonator of closing is combined to form, the resonant rod is assemblied in cavity, the cavity and the cover plate are closed using above-mentioned magnesium
Gold is made through Die Casting.
Further, the cavity and the cover plate are first carried out at 500~540 DEG C after 4~10h solution treatment,
4~50h Ageing Treatment is carried out at 175~250 DEG C again.
Further, the surface of the cavity side relative with the cover plate is coated with metal level.
Further, the metal level is the argent that thickness is 0.8~1.2mm.
Compared with prior art, a kind of magnesium alloy that the present invention is provided and preparation method thereof, the beneficial effect of cavity body filter
It is really：
(1), magnesium alloy of the invention improves the castability of magnesium alloy by adding a small amount of samarium, zirconium and silver in magnesium
Can, while enhancing mechanical strength and heat conductivility of magnesium alloy etc.；And the preparation method of the magnesium alloy is simple, due to addition
The species and consumption of metallic element are few, and cost is greatly reduced.
(2), the cavity and lid of cavity body filter of the invention are made of above-mentioned magnesium alloy, have cavity body filter
There are light weight, good mechanical property, good heat dissipation, substantially reduce the production cost of wave filter, and be easily assembled, manufacture.
The cavity body filter being made up of the magnesium alloy, its quality is only the 2/3 of the cavity body filter being made up of aluminium alloy of same volume, its
Room temperature thermal conductivity reaches 130~140W/ (mK), 140~160MPa of yield strength, and tensile strength is 240~280MPa, machinery
Performance is better than the cavity body filter being made up of aluminium alloy.
Embodiment
For the ease of understanding the present invention, technical scheme is elaborated with reference to the mode of embodiment,
Many details are elaborated in the following description to fully understand the present invention.
But the invention can be embodied in many other ways as described herein, those skilled in the art can be with
Similar improvement is done in the case of without prejudice to intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
Unless otherwise defined, all technologies used herein and scientific terminology have and the common skill of art of the present invention
The identical implication that art personnel are generally understood that.When there is contradiction, the definition in this specification is defined.
Term as used herein：
" by ... prepare " it is synonymous with "comprising".Term "comprising" used herein, " comprising ", " having ", " containing "
Or its any other deformation, it is intended that cover including for non-exclusionism.For example, composition, step, method comprising listed elements,
Product or device are not necessarily limited to those key elements, but can include not expressly listed other key elements or such a composition, step
Suddenly, method, product or the intrinsic key element of device.
Conjunction " by ... constitute " exclude any key element do not pointed out, step or component.If be used in claim,
This phrase will make claim be closed, it is not included the material in addition to materials of those descriptions, but relative
Except customary impurities.When phrase " by ... constitute " be rather than immediately following theme in the clause that appears in claim main body after
When, it is only limited to the key element described in the clause；Other key elements be not excluded as the overall claim it
Outside.
Equivalent, concentration or other values or parameter are excellent with scope, preferred scope or a series of upper limit preferred values and lower limit
During the Range Representation that choosing value is limited, this, which is appreciated that, specifically discloses by any range limit or preferred value and any scope
All scopes that any pairing of lower limit or preferred value is formed, regardless of whether whether the scope separately discloses.For example, when open
Scope " when 1~5 ", described scope should be interpreted as including scope " 1~4 ", " 1~3 ", " 1~2 ", " 1~2 and 4~
5 ", " 1~3 and 5 " etc..When number range is described herein, unless otherwise indicated, otherwise the scope is intended to include its end
Value and all integers and fraction within the range.
"and/or" is used to represent that one of illustrated situation or both may to occur, for example, A and/or B includes (A
And B) and (A or B)；
In addition, the indefinite article " one kind " and " one " before key element of the present invention or component are to key element or the quantitative requirement of component
(i.e. occurrence number) unrestriction.Therefore " one " or " one kind " should be read as including one or at least one, and odd number
The key element or component of form also include plural form, unless the quantity substantially refers to singulative.
In addition, the statement of " at least one " herein includes all numbers of one and the above (for example, at least two, at least
4, at least six, at least eight, at least ten, at least 25, at least 50, at least 100 etc.).
The invention provides a kind of magnesium alloy, include the component of following percentage by weight：
Samarium 1.5~3.5%, such as 1.5%, 2%, 2.5%, 3% or 3.5%；
Zirconium 0.2%~1.0%, such as 0.2%, 0.4%, 0.6%, 0.8% or 3.0%；
Silver 0.01%~0.1%, such as 0.01%, 0.02%, 0.05%, 0.08% or 0.1%；
Surplus is magnesium.
Preferably, the component of the magnesium alloy also includes impurity；The percentage by weight of the impurity is less than 0.05%；It is described
Impurity includes the one or more in iron, nickel and copper.
Present invention also offers a kind of preparation method of magnesium alloy, comprise the following steps：
Step 1: providing raw material：Magnesium ingot, magnesium-samarium intermediate alloy, magnesium-zirconium intermediate alloy and silver-magnesium intermediate alloy, and press
The raw material is weighed according to the percentage by weight of component in above-mentioned magnesium alloy；
Step 2: the magnesium ingot is heated under the protection of argon gas to be completely melt；It is 700~750 to treat magnesium melt temperature
During DEG C such as 700 DEG C, 710 DEG C, 720 DEG C, 730 DEG C, 740 DEG C or 750 DEG C, the magnesium-samarium intermediate alloy is added, until the magnesium-
Samarium intermediate alloy is completely melt；Then heat to 750~800 DEG C such as 750 DEG C, 760 DEG C, 770 DEG C, 780 DEG C, 790 DEG C or 800 DEG C
When, the magnesium-zirconium intermediate alloy is added, after the magnesium-zirconium intermediate alloy is completely melt, silver-magnesium intermediate alloy is added, directly
To being completely melt；
Step 3: the alloy molten solution obtained by step 2 is refined.
It should be noted that the purity of the magnesium ingot is preferably 99.94%, the magnesium-samarium intermediate alloy is preferably Mg-
25Sm intermediate alloys, the magnesium-zirconium intermediate alloy is preferably Mg-30Zr intermediate alloys, Mg-25Sm intermediate alloys and described
The purity of Mg-30Zr intermediate alloys is both preferably 99.9%.
It is to be appreciated that samarium (Sm), which is added in magnesium, can play the effect of refined crystalline strengthening, solution strengthening and ageing strengthening；
Magnesium-samarium alloy eutectic temperature in all binary Mg-RE systems alloys is minimum, so samarium not only has solution strengthening in the magnesium alloy
Acted on ageing strengthening, and the casting character of magnesium alloy can be improved.
Further, the zirconium of addition not with rare earth formation cenotype, do not interfere with rare earth element, its solid solution in magnesium yet
Degree, only plays crystal grain thinning, and alloy ageing strengthening effect will not be impacted.In addition, limit dissolving of the zirconium in magnesium
Degree is only 0.597%, when the mass fraction of zirconium is more than 0.6%, the zirconium particle of a large amount of infusibilities occurs in magnesium solution, due to zirconium matter
Measure fusing point high, and have good symbiosis and epibiosis with magnesium matrix, therefore crystal grain thinning can be played, the effect of reinforced magnesium alloy matrix；Together
When zirconium the thermal conductivity of magnesium alloy is declined, influence smaller.
Silver can improve reaction of the magnesium alloy to age-hardening, further enhance the mechanical performance of magnesium alloy, at the same silver by
In the solubility very little in magnesium, so the decline for magnesium alloy thermal conductivity influences also very little.
Preferably, after the step one and before the step 2, in addition to the raw material is polished.
Above-mentioned polishing is preferred to use mechanical grinding, it is therefore an objective to remove the oxide skin on raw material surface.
Preferably, in the step 2, the magnesium ingot is using heating plasma to being completely melt.
Above-mentioned heating plasma refers to, is ionized using working gas in the high temperature and plasma for be formed plasma freely
The electrical heating that electronics is carried out with the energy that cation compound tense discharges.Heating plasma method, compared to traditional melting stove heat, has
Programming rate is fast, the characteristics of heat evenly.
Preferably, in the step 3：The refining is specifically included：Argon gas is passed through in the alloy solution and carries out essence
Refining；Then degasification and slag inclusion.
The purpose of above-mentioned refining is to remove the objectionable impurities in magnesium alloy liquation, improve the pure of magnesium alloy liquation
Degree.After refining, the scum silica frost folder of magnesium alloy molten surface is come out of the stove with slag inclusion device outer, slag inclusion is needed thoroughly, totally.
Present invention also offers a kind of cavity body filter, including cavity, cover plate and resonant rod, the cavity and the cover plate
The resonator of closing is combined to form, the resonant rod is assemblied in cavity, the cavity and the cover plate are closed using above-mentioned magnesium
Gold is made through Die Casting.
Preferably, the cavity and the cover plate first 500~540 DEG C such as 500 DEG C, 510 DEG C, 520 DEG C, 530 DEG C or
At 540 DEG C carry out 4~10h such as 4h, 5h, 6h, 7h, 8h, 9h or 10h solution treatment after, then 175~250 DEG C such as 175 DEG C,
4~50h such as 4h, 10h, 15h, 20h, 30h, 40h or 50h timeliness are carried out at 185 DEG C, 200 DEG C, 210 DEG C, 230 DEG C or 250 DEG C
Processing.
Preferably, the surface of the cavity side relative with the cover plate is coated with metal level.
It is to be appreciated that solution treatment refers to is heated to the constant temperature holding of high temperature monophase field by alloy, make superfluous mutually fully molten
Solution rear quick cooling into solid solution, to obtain the Technology for Heating Processing of supersaturated solid solution.Solution treatment can make each in magnesium alloy
Mutually fully dissolving, Intensive intervention body are planted, and then improves cavity toughness and etch resistant properties, elimination stress and softening.Ageing Treatment refers to
Alloy workpiece is through solution treatment, cold plastic deformation or casting, after forging, is placed in higher temperature or room temperature keeps its performance,
Shape, the Technology for Heating Processing of size time to time change；Its purpose is to stablize the size of casting.The present invention is by being made cavity
Solution treatment and Ageing Treatment are carried out with cover plate, the heat conductivility and mechanical property of cavity body filter can be further lifted.
Preferably, the metal level is the gold that thickness is 0.8~1.2mm such as 0.8mm, 0.9mm, 1mm, 1.1mm or 1.2mm
Category silver.
For the ease of understanding the present invention, technical scheme is further illustrated with reference to embodiment.Applicant
Statement, the present invention illustrates detailed process equipment and the technological process of the present invention, but not office of the invention by above-described embodiment
It is limited to above-mentioned detailed process equipment and technological process, that is, does not mean that the present invention should rely on above-mentioned detailed process equipment and technique stream
Cheng Caineng is implemented.Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, to each original of product of the present invention
The equivalence replacement of material and the addition of auxiliary element, the selection of concrete mode etc., all fall within protection scope of the present invention and open model
Within enclosing.
Embodiment 1
A kind of magnesium alloy cover plate, it includes the component of following percentage by weight：3% samarium, 0.6% zirconium, 0.02% silver medal, surplus
It is made up of magnesium and inevitable impurity.Wherein content of impurities is less than 0.05%.
Its preparation method is：
Step 1: by above-mentioned magnesium alloy component percentage by weight calculate after weigh purity be 99.94% magnesium ingot, silver-
Magnesium intermediate alloy, magnesium-samarium intermediate alloy and magnesium-zirconium intermediate alloy raw material.
Step 2: carrying out mechanical grinding scale removal to above-mentioned raw materials.
Step 3: by magnesium ingot under the protection of argon gas, using heating plasma to being completely melt；Treat that magnesium melt temperature rises to
At 720 DEG C, magnesium-samarium intermediate alloy is added, is stirred, until being completely melt；When being continuously heating to 780 DEG C, add in magnesium-zirconium
Between alloy, until be completely melt；Then 15 minutes are incubated, add silver-magnesium intermediate alloy, until being completely melt；Then by argon
Gas be passed through in the alloy molten solution refined, degasification and slag inclusion.
Step 4: magnesium alloy liquation is transferred in horizontal type cold-chamber die casting, Die Casting obtains high heat conduction magnesium alloy lid
Plate；Then, by the magnesium alloy cover plate at a temperature of 540 DEG C, after the solution treatment for carrying out insulation 10 hours, then in 175 DEG C of temperature
Under, carry out the Ageing Treatment of insulation 50 hours.
Embodiment 2
A kind of magnesium alloy cover plate, it includes the component of following percentage by weight：1.5% samarium, 1.0% zirconium, 0.01% silver medal, it is remaining
Amount is made up of magnesium and inevitable impurity.Wherein content of impurities is less than 0.05%.
Its preparation method is：
Step 1: by above-mentioned magnesium alloy component percentage by weight calculate after weigh purity be 99.94% magnesium ingot, silver-
Magnesium intermediate alloy, magnesium-samarium intermediate alloy and magnesium-zirconium intermediate alloy raw material.
Step 2: carrying out mechanical grinding scale removal to above-mentioned raw materials.
Step 3: by magnesium ingot under the protection of argon gas, using heating plasma to being completely melt；Treat that magnesium melt temperature rises to
At 710 DEG C, magnesium-samarium intermediate alloy is added, is stirred, until being completely melt；When being continuously heating to 760 DEG C, add in magnesium-zirconium
Between alloy, until be completely melt；Then 15 minutes are incubated, add silver-magnesium intermediate alloy, until being completely melt；Then by argon
Gas be passed through in the alloy molten solution refined, degasification and slag inclusion.
Step 4: magnesium alloy liquation is transferred in horizontal type cold-chamber die casting, Die Casting obtains high heat conduction magnesium alloy lid
Plate；Then, by the magnesium alloy cover plate at a temperature of 530 DEG C, after the solution treatment for carrying out insulation 8 hours, then in 200 DEG C of temperature
Under, carry out the Ageing Treatment of insulation 40 hours.
Embodiment 3
A kind of magnesium alloy cover plate, it includes the component of following percentage by weight：2% samarium, 0.8% zirconium, 0.05% silver medal, surplus
It is made up of magnesium and inevitable impurity.Wherein content of impurities is less than 0.05%.
Its preparation method is：
Step 1: by above-mentioned magnesium alloy component percentage by weight calculate after weigh purity be 99.94% magnesium ingot, silver-
Magnesium intermediate alloy, magnesium-samarium intermediate alloy and magnesium-zirconium intermediate alloy raw material.
Step 2: carrying out mechanical grinding scale removal to above-mentioned raw materials.
Step 3: by magnesium ingot under the protection of argon gas, using heating plasma to being completely melt；Treat that magnesium melt temperature rises to
At 730 DEG C, magnesium-samarium intermediate alloy is added, is stirred, until being completely melt；When being continuously heating to 780 DEG C, add in magnesium-zirconium
Between alloy, until be completely melt；Then 15 minutes are incubated, add silver-magnesium intermediate alloy, until being completely melt；Then by argon
Gas be passed through in the alloy molten solution refined, degasification and slag inclusion.
Step 4: magnesium alloy liquation is transferred in horizontal type cold-chamber die casting, Die Casting obtains high heat conduction magnesium alloy lid
Plate；Then, by the magnesium alloy cover plate at a temperature of 520 DEG C, after the solution treatment for carrying out insulation 6 hours, then in 220 DEG C of temperature
Under, carry out the Ageing Treatment of insulation 30 hours.
Embodiment 4
A kind of magnesium alloy cover plate, it includes the component of following percentage by weight：3% samarium, 0.6% zirconium, 0.05% silver medal, surplus
It is made up of magnesium and inevitable impurity.Wherein content of impurities is less than 0.05%.
Its preparation method is：
Step 1: by above-mentioned magnesium alloy component percentage by weight calculate after weigh purity be 99.94% magnesium ingot, silver-
Magnesium intermediate alloy, magnesium-samarium intermediate alloy and magnesium-zirconium intermediate alloy raw material.
Step 2: carrying out mechanical grinding scale removal to above-mentioned raw materials.
Step 3: by magnesium ingot under the protection of argon gas, using heating plasma to being completely melt；Treat that magnesium melt temperature rises to
At 750 DEG C, magnesium-samarium intermediate alloy is added, is stirred, until being completely melt；When being continuously heating to 800 DEG C, add in magnesium-zirconium
Between alloy, until be completely melt；Then 15 minutes are incubated, add silver-magnesium intermediate alloy, until being completely melt；Then by argon
Gas be passed through in the alloy molten solution refined, degasification and slag inclusion.
Step 4: magnesium alloy liquation is transferred in horizontal type cold-chamber die casting, Die Casting obtains high heat conduction magnesium alloy lid
Plate；Then, by the magnesium alloy cover plate at a temperature of 510 DEG C, after the solution treatment for carrying out insulation 4 hours, then in 250 DEG C of temperature
Under, carry out the Ageing Treatment of insulation 4 hours.
Embodiment 5
A kind of magnesium alloy cover plate, it includes the component of following percentage by weight：3% samarium, 0.6% zirconium, 0.05% silver medal, surplus
It is made up of magnesium and inevitable impurity.Wherein content of impurities is less than 0.05%.
Its preparation method is：
Step 1: by above-mentioned magnesium alloy component percentage by weight calculate after weigh purity be 99.94% magnesium ingot, silver-
Magnesium intermediate alloy, magnesium-samarium intermediate alloy and magnesium-zirconium intermediate alloy raw material.
Step 2: carrying out mechanical grinding scale removal to above-mentioned raw materials.
Step 3: by magnesium ingot under the protection of argon gas, using heating plasma to being completely melt；Treat that magnesium melt temperature rises to
At 740 DEG C, magnesium-samarium intermediate alloy is added, is stirred, until being completely melt；When being continuously heating to 790 DEG C, add in magnesium-zirconium
Between alloy, until be completely melt；Then 15 minutes are incubated, add silver-magnesium intermediate alloy, until being completely melt；Then by argon
Gas be passed through in the alloy molten solution refined, degasification and slag inclusion.
Step 4: magnesium alloy liquation is transferred in horizontal type cold-chamber die casting, Die Casting obtains high heat conduction magnesium alloy lid
Plate；Then, by the magnesium alloy cover plate at a temperature of 510 DEG C, after the solution treatment for carrying out insulation 5 hours, then in 230 DEG C of temperature
Under, carry out the Ageing Treatment of insulation 10 hours.
Comparative example 1
A kind of siliceous, iron aluminium alloy ENAC-44300 die casting cover plates.
Comparative example 2
A kind of magnesium alloy AE42 die casting cover plates containing aluminium, silicon.
Comparative example 3
A kind of magnesium alloy QE22 die casting cover plates of argentiferous, rare earth.
The comparing result such as following table of the mechanical performance and thermal conductivity factor of embodiment 1~5 and comparative example：
As can be seen from the above table, the room temperature thermal conductivity of the cover plate of the embodiment of the present invention reaches 130~140W/ (mK), bends
Take intensity and reach 140~160MPa, tensile strength is 240~280MPa, the mechanical performance of the cover plate of comparative example 1 and comparative example 2
And heat conductivility is significantly worse than the mechanical property and heat conductivility of the embodiment of the present invention, and the tensile strength of the cover plate of comparative example 3
And heat conductivility is significantly worse than the tensile strength and heat conductivility of the embodiment of the present invention.
To sum up, the mechanical performance of cavity body filter and heat conductivility that the present invention is made up of magnesium alloy be better than same volume by
The cavity body filter that aluminium alloy is made.
Applicant states that the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment,
But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, do not mean that the present invention has to rely on above-mentioned detailed
Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention,
Addition, selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., all fall within the present invention's
Within the scope of protection domain and disclosure.
Claims (10)
1. a kind of magnesium alloy, it is characterised in that：Include the component of following percentage by weight：Samarium 1.5~3.5%, zirconium 0.2%~
1.0%th, silver 0.01%~0.1%, surplus is magnesium.
2. magnesium alloy according to claim 1, it is characterised in that：Its component also includes impurity；The weight hundred of the impurity
Divide than being less than 0.05%；The impurity includes the one or more in iron, nickel and copper.
3. a kind of preparation method of magnesium alloy, it is characterised in that comprise the following steps：
Step 1: providing raw material：Magnesium ingot, magnesium-samarium intermediate alloy, magnesium-zirconium intermediate alloy and silver-magnesium intermediate alloy, and according to power
Profit requires that the percentage by weight of component in magnesium alloy described in 1 weighs the raw material；
Step 2: the magnesium ingot is heated under the protection of argon gas to be completely melt；When magnesium melt temperature is 700~750 DEG C,
The magnesium-samarium intermediate alloy is added, until the magnesium-samarium intermediate alloy is completely melt；When then heating to 750~800 DEG C, plus
Enter the magnesium-zirconium intermediate alloy, after the magnesium-zirconium intermediate alloy is completely melt, add silver-magnesium intermediate alloy, until complete
Running down；
Step 3: the alloy molten solution obtained by step 2 is refined.
4. the preparation method of magnesium alloy according to claim 3, it is characterised in that：After the step one and the step
Before rapid two, in addition to the raw material is polished.
5. the preparation method of magnesium alloy according to claim 3, it is characterised in that：In the step 2, the magnesium ingot is adopted
With heating plasma to being completely melt.
6. the preparation method of magnesium alloy according to claim 3, it is characterised in that：In the step 3：The refining tool
Body includes：Argon gas is passed through in the alloy solution and refined；Then degasification and slag inclusion.
7. a kind of cavity body filter, including cavity, cover plate and resonant rod, the cavity combine to form the humorous of closing with the cover plate
Shaken chamber, and the resonant rod is assemblied in cavity, it is characterised in that：The cavity and the cover plate are using described in claim 1
Magnesium alloy be made through Die Casting.
8. cavity body filter according to claim 7, it is characterised in that：The cavity and the cover plate first 500~
At 540 DEG C carry out 4~10h solution treatment after, then at 175~250 DEG C carry out 4~50h Ageing Treatment.
9. cavity body filter according to claim 7, it is characterised in that：The cavity side relative with the cover plate
Surface is coated with metal level.
10. cavity body filter according to claim 9, it is characterised in that：The metal level is that thickness is 0.8~1.2mm
Argent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710424890.2A CN107201473A (en) | 2017-06-07 | 2017-06-07 | A kind of magnesium alloy and preparation method thereof, cavity body filter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710424890.2A CN107201473A (en) | 2017-06-07 | 2017-06-07 | A kind of magnesium alloy and preparation method thereof, cavity body filter |
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| CN107201473A true CN107201473A (en) | 2017-09-26 |
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| CN201710424890.2A Pending CN107201473A (en) | 2017-06-07 | 2017-06-07 | A kind of magnesium alloy and preparation method thereof, cavity body filter |
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| CN (1) | CN107201473A (en) |
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| CN110578081A (en) * | 2019-10-15 | 2019-12-17 | 嘉丰工业科技（惠州）有限公司 | rare earth magnesium alloy with ultrahigh heat conductivity coefficient and preparation method thereof |
| CN113005378A (en) * | 2021-03-03 | 2021-06-22 | 赣南师范大学 | Heat treatment process of Ag-containing Mg-Sm rare earth magnesium alloy |
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