CN108385040A - A kind of chopped carbon fiber enhancing magnesium-aluminum-based composite material and preparation method - Google Patents
A kind of chopped carbon fiber enhancing magnesium-aluminum-based composite material and preparation method Download PDFInfo
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- CN108385040A CN108385040A CN201810154308.XA CN201810154308A CN108385040A CN 108385040 A CN108385040 A CN 108385040A CN 201810154308 A CN201810154308 A CN 201810154308A CN 108385040 A CN108385040 A CN 108385040A
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- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 70
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 70
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 62
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 69
- 239000002184 metal Substances 0.000 claims abstract description 69
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 238000010438 heat treatment Methods 0.000 claims abstract description 61
- 239000002245 particle Substances 0.000 claims abstract description 52
- 239000008187 granular material Substances 0.000 claims abstract description 44
- 239000000843 powder Substances 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 229910026551 ZrC Inorganic materials 0.000 claims abstract description 20
- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical compound [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 19
- 238000000498 ball milling Methods 0.000 claims abstract description 18
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910001051 Magnalium Inorganic materials 0.000 claims abstract description 14
- 239000011812 mixed powder Substances 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 38
- 238000002791 soaking Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 15
- 239000011777 magnesium Substances 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 229910019752 Mg2Si Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- -1 aluminium gold Chemical compound 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000000215 hyperchromic effect Effects 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The present invention provides a kind of preparation method of chopped carbon fiber enhancing magnalium based composites, includes the following steps：Zirconium carbide powder and silicon carbide powder are provided；Ball milling is carried out to zirconium carbide powder and silicon carbide powder, obtains the first mixed-powder；Isostatic cool pressing is carried out to the first mixed-powder, obtains the first enhancing particle population；Vacuum heat is carried out to the first enhancing particle population, obtains the second enhancing particle population；Magnesium-aluminum metal ingot and the second enhancing particle population are put into vacuum furnace and carry out Compound Heat Treatment, granule reinforced magnesium aluminum metal liquid is obtained；Chopped carbon fiber is provided, and chopped carbon fiber is preheated；Semi-solid Stirring is carried out to granule reinforced magnesium aluminum metal liquid, during Semi-solid Stirring, the chopped carbon fiber by preheating is added into granule reinforced magnesium aluminum metal liquid, obtains chopped carbon fiber enhancing magnesium-aluminum metal liquid；It is poured into a mould using chopped carbon fiber enhancing magnesium-aluminum metal liquid, obtains chopped carbon fiber enhancing magnalium based composites.
Description
Technical field
The present invention relates to field of compound material, more particularly to a kind of chopped carbon fiber enhancing magnalium based composites and its system
Preparation Method.
Background technology
Magnesium alloy is one kind in alloy, and general density is in 1.8gcm-3The low-density of the alloy of left and right, magnesium and aluminium makes
It is improved than performance.Magnesium alloy has good intensity, rigidity and dimensional stability.During magnesium alloy is normally used at present
High-grade ultrathin or the smaller notebook of size shell.Argenteous almag shell can make product more luxurious, beautiful, easily
In colouring, and personalized powderblue and pink can be become by process of surface treatment, be that laptop is hyperchromic not
It is few, this be engineering plastics and carbon fiber it is incomparable.But the performance of common magnesium alloy cannot expire gradually
Sufficient industrial requirement.
In order to improve the mechanical property of magnesium alloy, relatively good method is that second phase particles are added into magnesium alloy,
Such as TiC particles, Mg2Si systems particle etc., these particles can play the role of dispersion-strengtherning.But it is well known that
Magnesium alloy difficulty of processing is larger, how to be the long-standing technology in this field by these uniform particles addition magnesium alloy
Problem.In-situ method has been developed in the prior art, magnesium alloy is added in second phase particles, but this prior art is still
There are certain defects：1, the method for the prior art can only ensure that TiC particles, Mg are added in magnesium alloy2Si systems particle etc., nothing
The particle of other systems is added in method；2, the in-situ method of the prior art can only reduce the difficulty that particle is added, but can not be significantly
Improve the mechanical property of magnesium alloy.
Being disclosed in the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or imply that the information is constituted in any form.
Invention content
The purpose of the present invention is to provide a kind of chopped carbon fibers to enhance magnesium-aluminum-based composite material and preparation method, to
The shortcomings that overcoming the prior art.
To achieve the above object, the present invention provides the preparation sides that a kind of chopped carbon fiber enhances magnalium based composites
Method, it is characterised in that：Preparation method includes the following steps：Zirconium carbide powder and silicon carbide powder are provided；To zirconium carbide powder
And silicon carbide powder carries out ball milling, obtains the first mixed-powder；Isostatic cool pressing is carried out to the first mixed-powder, obtains the first increasing
Strong particle population；Vacuum heat is carried out to the first enhancing particle population, obtains the second enhancing particle population；By magnesium-aluminum metal ingot
And second enhancing particle population be put into vacuum furnace and carry out Compound Heat Treatment, obtain granule reinforced magnesium aluminum metal liquid, it is multiple
Closing process of thermal treatment is：It is heat-treated air pressure 0.01-0.03Pa, heat treatment temperature is 750-850 DEG C, heating rate 70-100
DEG C/min, soaking time 2-3h, wherein and when the second enhancing particle population is put into vacuum furnace, the second enhancing particle
The temperature of block is not less than 800 DEG C；Chopped carbon fiber is provided, and chopped carbon fiber is preheated；To granule reinforced magnesium aluminium gold
Belong to liquid and carry out Semi-solid Stirring, during Semi-solid Stirring, is added into granule reinforced magnesium aluminum metal liquid by preheating
Chopped carbon fiber obtains chopped carbon fiber enhancing magnesium-aluminum metal liquid；It is poured into a mould using chopped carbon fiber enhancing magnesium-aluminum metal liquid,
Obtain chopped carbon fiber enhancing magnalium based composites.
Preferably, in above-mentioned technical proposal, with volume percentage, zirconium carbide powder accounts for granule reinforced magnesium aluminum metal liquid
2-4%, silicon carbide powder account for the 2-4% of granule reinforced magnesium aluminum metal liquid.
Preferably, in above-mentioned technical proposal, ball-milling technology is：Rotating speed is 700-1000r/min, Ball-milling Time 2-4h.
Preferably, in above-mentioned technical proposal, vacuum heat treatment process is：Heat treatment temperature is 800-1000 DEG C, and air pressure is
0.01-0.03Pa, heat treatment time 2-3h.
Preferably, in above-mentioned technical proposal, with volume percentage, chopped carbon fiber accounts for granule reinforced magnesium aluminum metal liquid
2-4%.
Preferably, in above-mentioned technical proposal, the technique of preheating is：Air pressure is 0.01-0.03Pa, preheating temperature 650-
700 DEG C, preheating time 2-3h.
Preferably, in above-mentioned technical proposal, when carrying out Semi-solid Stirring, the temperature of granule reinforced magnesium aluminum metal liquid is
600-620 DEG C, mixing speed 300-400r/min.
Preferably, in above-mentioned technical proposal, granule reinforced magnesium aluminum metal liquid is added in the chopped carbon fiber that will pass through preheating
When middle, the temperature of the chopped carbon fiber by preheating is not less than 630 DEG C.
The present invention also provides a kind of chopped carbon fibers to enhance magnalium based composites, which is by preceding method
It prepares.
Compared with prior art, the present invention has the advantages that：1, the present invention designs specific hard by being arranged
The technique of particle heat treatment process, situ fusion hard particles and magnesium alloy is realized zirconium carbide powder and silicon carbide
Powder is uniformly added into the technique effect of magnesium alloy, and solving the prior art hard particles cannot be added lacking for magnesium alloy
It falls into；2, the present invention successfully introduces chopped carbon fiber, greatly by the addition technique of design carbon fiber into magnesium alloy
Improve the mechanical property of magnesium alloy.
Specific implementation mode
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
Embodiment 1
Chopped carbon fiber enhancing magnalium based composites are prepared in the following manner：Zirconium carbide powder and carborundum powder are provided
End；Ball milling is carried out to zirconium carbide powder and silicon carbide powder, obtains the first mixed-powder；First mixed-powder is carried out cold etc.
Static pressure obtains the first enhancing particle population；Vacuum heat is carried out to the first enhancing particle population, obtains the second enhancing particulate mass
Body；Magnesium-aluminum metal ingot and the second enhancing particle population are put into vacuum furnace and carry out Compound Heat Treatment, particle increasing is obtained
Strong magnesium-aluminum metal liquid, the technique of Compound Heat Treatment are：It is heat-treated air pressure 0.01Pa, heat treatment temperature is 750 DEG C, and heating rate is
70 DEG C/min, soaking time 3h, wherein when the second enhancing particle population is put into vacuum furnace, the second enhancing particle
The temperature of block is 820 DEG C；Chopped carbon fiber is provided, and chopped carbon fiber is preheated；To granule reinforced magnesium aluminum metal liquid
Semi-solid Stirring is carried out, during Semi-solid Stirring, being chopped by preheating is added into granule reinforced magnesium aluminum metal liquid
Carbon fiber obtains chopped carbon fiber enhancing magnesium-aluminum metal liquid；It is poured into a mould, is obtained using chopped carbon fiber enhancing magnesium-aluminum metal liquid
Chopped carbon fiber enhances magnalium based composites.With volume percentage, zirconium carbide powder accounts for granule reinforced magnesium aluminum metal liquid
2%, silicon carbide powder accounts for the 2% of granule reinforced magnesium aluminum metal liquid.Ball-milling technology is：Rotating speed is 700r/min, and Ball-milling Time is
4h.Vacuum heat treatment process is：Heat treatment temperature is 900 DEG C, air pressure 0.01Pa, heat treatment time 3h.With volume basis
Than meter, chopped carbon fiber accounts for the 2% of granule reinforced magnesium aluminum metal liquid.The technique of preheating is：Air pressure is 0.01Pa, and preheating temperature is
650 DEG C, preheating time 3h.When carrying out Semi-solid Stirring, the temperature of granule reinforced magnesium aluminum metal liquid is 600 DEG C, stirring speed
Degree is 300r/min.When the chopped carbon fiber that will pass through preheating is added in granule reinforced magnesium aluminum metal liquid, by the short of preheating
The temperature for cutting carbon fiber is 640 DEG C.
Embodiment 2
Chopped carbon fiber enhancing magnalium based composites are prepared in the following manner：Zirconium carbide powder and carborundum powder are provided
End；Ball milling is carried out to zirconium carbide powder and silicon carbide powder, obtains the first mixed-powder；First mixed-powder is carried out cold etc.
Static pressure obtains the first enhancing particle population；Vacuum heat is carried out to the first enhancing particle population, obtains the second enhancing particulate mass
Body；Magnesium-aluminum metal ingot and the second enhancing particle population are put into vacuum furnace and carry out Compound Heat Treatment, particle increasing is obtained
Strong magnesium-aluminum metal liquid, the technique of Compound Heat Treatment are：It is heat-treated air pressure 0.03Pa, 850 DEG C of heat treatment temperature, heating rate is
100 DEG C/min, soaking time 2h, wherein when the second enhancing particle population is put into vacuum furnace, the second enhancing particle
The temperature of block is 830 DEG C；Chopped carbon fiber is provided, and chopped carbon fiber is preheated；To granule reinforced magnesium aluminum metal liquid
Semi-solid Stirring is carried out, during Semi-solid Stirring, being chopped by preheating is added into granule reinforced magnesium aluminum metal liquid
Carbon fiber obtains chopped carbon fiber enhancing magnesium-aluminum metal liquid；It is poured into a mould, is obtained using chopped carbon fiber enhancing magnesium-aluminum metal liquid
Chopped carbon fiber enhances magnalium based composites.With volume percentage, zirconium carbide powder accounts for granule reinforced magnesium aluminum metal liquid
4%, silicon carbide powder accounts for the 4% of granule reinforced magnesium aluminum metal liquid.Ball-milling technology is：Rotating speed is 1000r/min, and Ball-milling Time is
2h.Vacuum heat treatment process is：Heat treatment temperature is 1000 DEG C, air pressure 0.01Pa, heat treatment time 2h.With volume basis
Than meter, chopped carbon fiber accounts for the 4% of granule reinforced magnesium aluminum metal liquid.The technique of preheating is：Air pressure is 0.03Pa, and preheating temperature is
700 DEG C, preheating time 2h.When carrying out Semi-solid Stirring, the temperature of granule reinforced magnesium aluminum metal liquid is 620 DEG C, stirring speed
Degree is 400r/min.When the chopped carbon fiber that will pass through preheating is added in granule reinforced magnesium aluminum metal liquid, by the short of preheating
The temperature for cutting carbon fiber is 650 DEG C.
Embodiment 3
Chopped carbon fiber enhancing magnalium based composites are prepared in the following manner：Zirconium carbide powder and carborundum powder are provided
End；Ball milling is carried out to zirconium carbide powder and silicon carbide powder, obtains the first mixed-powder；First mixed-powder is carried out cold etc.
Static pressure obtains the first enhancing particle population；Vacuum heat is carried out to the first enhancing particle population, obtains the second enhancing particulate mass
Body；Magnesium-aluminum metal ingot and the second enhancing particle population are put into vacuum furnace and carry out Compound Heat Treatment, particle increasing is obtained
Strong magnesium-aluminum metal liquid, the technique of Compound Heat Treatment are：It is heat-treated air pressure 0.01Pa, heat treatment temperature is 800 DEG C, and heating rate is
80 DEG C/min, soaking time 2.5h, wherein when the second enhancing particle population is put into vacuum furnace, the second enhancing
The temperature of grain block is 810 DEG C；Chopped carbon fiber is provided, and chopped carbon fiber is preheated；To granule reinforced magnesium aluminum metal
Liquid carries out Semi-solid Stirring, during Semi-solid Stirring, is added into granule reinforced magnesium aluminum metal liquid by the short of preheating
Carbon fiber is cut, chopped carbon fiber enhancing magnesium-aluminum metal liquid is obtained；It is poured into a mould, is obtained using chopped carbon fiber enhancing magnesium-aluminum metal liquid
Enhance magnalium based composites to chopped carbon fiber.With volume percentage, zirconium carbide powder accounts for granule reinforced magnesium aluminum metal liquid
3%, silicon carbide powder accounts for the 3% of granule reinforced magnesium aluminum metal liquid.Ball-milling technology is：Rotating speed is 800r/min, Ball-milling Time
For 3h.Vacuum heat treatment process is：Heat treatment temperature is 900 DEG C, air pressure 0.01Pa, heat treatment time 2.5h.With volume
Percentages, chopped carbon fiber account for the 3% of granule reinforced magnesium aluminum metal liquid.The technique of preheating is：Air pressure is 0.01Pa, preheating temperature
Degree is 670 DEG C, preheating time 2.5h.When carrying out Semi-solid Stirring, the temperature of granule reinforced magnesium aluminum metal liquid is 610 DEG C,
Mixing speed is 350r/min.When the chopped carbon fiber that will pass through preheating is added in granule reinforced magnesium aluminum metal liquid, by pre-
The temperature of the chopped carbon fiber of heat is 640 DEG C.
Embodiment 4
Zirconium carbide powder is replaced with into TiC powder, silicon carbide powder is replaced with into Mg2Si powder, remaining condition, parameter,
Step, component are same as Example 3.
Embodiment 5
Vacuum heat is not carried out to the first enhancing particle population, directly by the first enhancing particle population and magnesium-aluminum metal ingot
Compound Heat Treatment is carried out, remaining condition, parameter, step, component are same as Example 3.
Embodiment 6
The technique of Compound Heat Treatment is：Heat treatment temperature is 700 DEG C, and heating rate is 70-100 DEG C/min, soaking time
For 2-3h, remaining condition, parameter, step, component are same as Example 3.
Embodiment 7
The technique of Compound Heat Treatment is：Heat treatment temperature is 900 DEG C, and heating rate is 70-100 DEG C/min, soaking time
For 2-3h, remaining condition, parameter, step, component are same as Example 3.
Embodiment 8
The technique of Compound Heat Treatment is：Heat treatment temperature is 800 DEG C, and heating rate is 50 DEG C/min, and soaking time is
2.5h, remaining condition, parameter, step, component are same as Example 3.
Embodiment 9
The technique of Compound Heat Treatment is：Heat treatment temperature is 800 DEG C, and heating rate is 120 DEG C/min, and soaking time is
2.5h, remaining condition, parameter, step, component are same as Example 3.
Embodiment 10
The technique of Compound Heat Treatment is：Heat treatment temperature be 800 DEG C, heating rate be 80 DEG C/min, soaking time 1h,
Remaining condition, parameter, step, component are same as Example 3.
Embodiment 11
The technique of Compound Heat Treatment is：Heat treatment temperature be 800 DEG C, heating rate be 80 DEG C/min, soaking time 4h,
Remaining condition, parameter, step, component are same as Example 3.
Embodiment 12
When the second enhancing particle population is put into vacuum furnace, the temperature of the second enhancing particle population is 750 DEG C,
Remaining condition, parameter, step, component are same as Example 3.
Embodiment 13
Chopped carbon fiber is not added into granule reinforced magnesium aluminum metal liquid, directly pours into a mould granule reinforced magnesium aluminum metal liquid,
Remaining condition, parameter, step, component are same as Example 3.
Embodiment 14
With volume percentage, zirconium carbide powder accounts for the 5% of granule reinforced magnesium aluminum metal liquid, and silicon carbide powder accounts for particle increasing
The 5% of strong magnesium-aluminum metal liquid, remaining condition, parameter, step, component are same as Example 3.
Embodiment 15
Ball-milling technology is：Rotating speed is 1200r/min, Ball-milling Time 5h.Remaining condition, parameter, step, component and implementation
Example 3 is identical.
Embodiment 16
Vacuum heat treatment process is：Heat treatment temperature is 1200 DEG C, heat treatment time 4h, remaining condition, parameter, step
Suddenly, component is same as Example 3.
Embodiment 17
Vacuum heat treatment process is：Heat treatment temperature be 900 DEG C, heat treatment time 1h, remaining condition, parameter, step,
Component is same as Example 3.
Embodiment 18
With volume percentage, chopped carbon fiber accounts for the 5% of granule reinforced magnesium aluminum metal liquid, remaining condition, parameter, step
Suddenly, component is same as Example 3.
Embodiment 19
The technique of preheating is：Preheating temperature is 620 DEG C, preheating time 4h, remaining condition, parameter, step, component and reality
It is identical to apply example 3.
Embodiment 20
The technique of preheating is：Preheating temperature is 750 DEG C, preheating time 1h, remaining condition, parameter, step, component and reality
It is identical to apply example 3.
Embodiment 21
When carrying out Semi-solid Stirring, the temperature of granule reinforced magnesium aluminum metal liquid is 580 DEG C, mixing speed 350r/
Min, remaining condition, parameter, step, component are same as Example 3.
Embodiment 22
When carrying out Semi-solid Stirring, the temperature of granule reinforced magnesium aluminum metal liquid is 610 DEG C, mixing speed 500r/
Min, remaining condition, parameter, step, component are same as Example 3.
Embodiment 23
When the chopped carbon fiber that will pass through preheating is added in granule reinforced magnesium aluminum metal liquid, by the chopped carbon fiber of preheating
The temperature of dimension is 610 DEG C.
Tensile strength, yield strength, rigidity test are carried out to embodiment 1-23, above-mentioned test is with reference to the countries concerned's standard
It carries out, for the ease of comparing, above-mentioned test result is normalized based on embodiment 1, final experimental result is referring to table 1.
Table 1
The description of the aforementioned specific exemplary embodiment to the present invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the present invention and its actually answering
With so that those skilled in the art can realize and utilize the present invention a variety of different exemplary implementation schemes and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (9)
1. a kind of preparation method of chopped carbon fiber enhancing magnalium based composites, it is characterised in that：The preparation method includes
Following steps：
Zirconium carbide powder and silicon carbide powder are provided；
Ball milling is carried out to the zirconium carbide powder and silicon carbide powder, obtains the first mixed-powder；
Isostatic cool pressing is carried out to first mixed-powder, obtains the first enhancing particle population；
Vacuum heat is carried out to the first enhancing particle population, obtains the second enhancing particle population；
Magnesium-aluminum metal ingot and the second enhancing particle population are put into vacuum furnace and carry out Compound Heat Treatment, is obtained
Grain enhancing magnesium-aluminum metal liquid, the technique of the Compound Heat Treatment are：It is heat-treated air pressure 0.01-0.03Pa, heat treatment temperature is
750-850 DEG C, heating rate is 70-100 DEG C/min, soaking time 2-3h, wherein is enhancing particle population by described second
When being put into the vacuum furnace, the temperature of the second enhancing particle population is not less than 800 DEG C；
Chopped carbon fiber is provided, and the chopped carbon fiber is preheated；
Semi-solid Stirring is carried out to the granule reinforced magnesium aluminum metal liquid, during the Semi-solid Stirring, to described
The chopped carbon fiber by preheating is added in grain enhancing magnesium-aluminum metal liquid, obtains chopped carbon fiber enhancing magnesium-aluminum metal liquid；
It is poured into a mould using chopped carbon fiber enhancing magnesium-aluminum metal liquid, it is compound to obtain the chopped carbon fiber enhancing magnesium-aluminum-based
Material.
2. preparation method as described in claim 1, it is characterised in that：With volume percentage, the zirconium carbide powder accounts for institute
The 2-4% of granule reinforced magnesium aluminum metal liquid is stated, the silicon carbide powder accounts for the 2-4% of the granule reinforced magnesium aluminum metal liquid.
3. preparation method as described in claim 1, it is characterised in that：The ball-milling technology is：Rotating speed is 700-1000r/
Min, Ball-milling Time 2-4h.
4. preparation method as described in claim 1, it is characterised in that：The vacuum heat treatment process is：Heat treatment temperature is
800-1000 DEG C, air pressure 0.01-0.03Pa, heat treatment time 2-3h.
5. preparation method as described in claim 1, it is characterised in that：With volume percentage, the chopped carbon fiber accounts for institute
State the 2-4% of granule reinforced magnesium aluminum metal liquid.
6. preparation method as described in claim 1, it is characterised in that：The technique of the preheating is：Air pressure is 0.01-
0.03Pa, preheating temperature are 650-700 DEG C, preheating time 2-3h.
7. preparation method as described in claim 1, it is characterised in that：When carrying out the Semi-solid Stirring, the particle increases
The temperature of strong magnesium-aluminum metal liquid is 600-620 DEG C, mixing speed 300-400r/min.
8. preparation method as described in claim 1, it is characterised in that：Institute is being added in the chopped carbon fiber by preheating
When stating in granule reinforced magnesium aluminum metal liquid, the temperature of the chopped carbon fiber by preheating is not less than 630 DEG C.
9. a kind of chopped carbon fiber enhances magnalium based composites, it is characterised in that：The composite material is by such as claim
Prepared by the method described in one of 1-8.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675707A (en) * | 2019-01-15 | 2019-04-26 | 中南大学 | A kind of soft alloy is preparing the application in ultra-fine carbon dust |
| CN112553546A (en) * | 2020-09-18 | 2021-03-26 | 河北工业大学 | Preparation method and device of chopped carbon fiber reinforced amorphous composite material |
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| CN1045237A (en) * | 1988-11-10 | 1990-09-12 | 兰克西敦技术公司 | By the method for spontaneous infiltration explained hereafter metal matrix composite and the product produced of method thus thereof |
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| CN109675707A (en) * | 2019-01-15 | 2019-04-26 | 中南大学 | A kind of soft alloy is preparing the application in ultra-fine carbon dust |
| CN109675707B (en) * | 2019-01-15 | 2021-04-27 | 中南大学 | Application of soft metal in preparation of superfine carbon powder |
| CN112553546A (en) * | 2020-09-18 | 2021-03-26 | 河北工业大学 | Preparation method and device of chopped carbon fiber reinforced amorphous composite material |
| CN112553546B (en) * | 2020-09-18 | 2022-02-08 | 河北工业大学 | Preparation method and device of chopped carbon fiber reinforced amorphous composite material |
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