CN108004439A - A kind of swivel base support plate and preparation method thereof - Google Patents
A kind of swivel base support plate and preparation method thereof Download PDFInfo
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- CN108004439A CN108004439A CN201711022504.3A CN201711022504A CN108004439A CN 108004439 A CN108004439 A CN 108004439A CN 201711022504 A CN201711022504 A CN 201711022504A CN 108004439 A CN108004439 A CN 108004439A
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- 238000002360 preparation method Methods 0.000 title claims description 17
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 32
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 24
- 239000000956 alloy Substances 0.000 claims description 21
- 229910045601 alloy Inorganic materials 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 239000006185 dispersion Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 10
- 239000002202 Polyethylene glycol Substances 0.000 claims description 9
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 9
- 229920001223 polyethylene glycol Polymers 0.000 claims description 9
- 238000004108 freeze drying Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 7
- 235000002906 tartaric acid Nutrition 0.000 claims description 7
- 239000011975 tartaric acid Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 6
- 239000011858 nanopowder Substances 0.000 claims description 4
- 239000008246 gaseous mixture Substances 0.000 claims description 3
- 235000020610 powder formula Nutrition 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000007792 addition Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007499 fusion processing Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 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
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1005—Pretreatment of the non-metallic additives
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- 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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Composite Materials (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The present invention provides a kind of swivel base support plate, the swivel base support plate is made of aluminium alloy, and the aluminium alloy includes the component of following mass percent：5.0~6.5%Si, 0.5~0.7%Mn, 0.17~0.35%Mg, 1.3~1.5%Fe, 0.5~0.75%Ni, 0.3~0.5%Cu, 0.4~0.55% nanometer of VC, 2.8~7.9%Ti3N4, surplus is Al and inevitable impurity.Beneficial effects of the present invention are：Good mechanical performance, light weight, flexibility ratio are high, performance is stablized.
Description
Technical field
The invention belongs to field of mechanical technique, is related to a kind of swivel base support plate and preparation method thereof.
Background technology
In the prior art, the swivel base of body is not shaken when in use for fixing body, is played fixation, is carried
The security performance of high body.But in existing body swivel base, in order to improve the stability of swivel base, the volume of swivel base can be set
That counts is huger, so that need to provide larger space to accommodate swivel base, so that whole body becomes heavy, it is ineffective
Living, installation is also more inconvenient.Swivel base support plate bear whole body weight and body movement and vibrations caused by it is various should
Power, it is therefore desirable to which there is higher mechanical property and preferable load-bearing property.And existing base support plate often uses metal material
Material is made, although higher using swivel base support plate intensity prepared by cast iron, heavier, flexibility ratio is poor, is not suitable for applying
In more compact mechanical equipment, and general toughness is poor, can meet with stresses smaller；Turned using prepared by aluminium alloy
Although seat supports plate quality is relatively low, flexibility ratio is higher, its intensity and toughness are poor, is more difficult to bear larger answer
Power.
The content of the invention
The purpose of the present invention is in view of the above-mentioned problems existing in the prior art, it is proposed that a kind of good mechanical performance, flexibly
The swivel base support plate that degree is high, performance is stablized.
The purpose of the present invention can be realized by following technical proposal：A kind of swivel base support plate, the swivel base support plate by
Aluminium alloy is made, and the aluminium alloy includes the component of following mass percent：5.0~6.5%Si, 0.5~0.7%Mn, 0.17
~0.35%Mg, 1.3~1.5%Fe, 0.5~0.75%Ni, 0.3~0.5%Cu, 0.4~0.55% nanometer of VC, 2.8~
7.9%Ti3N4, surplus is Al and inevitable impurity.
The present invention is improved on the basis of ZL104 aluminium alloys, reduces the content of Si (80.~10.5), is improved
The content of Mn and Fe, and add Ni, Cu, VC and Ti3N4, by between the component and each component of reasonable compatibility aluminium alloy
Proportioning, significantly improves the intensity, toughness and shock resistance of aluminium alloy, so as to improve the usability of swivel base support plate
Energy.Wherein, present invention reduces the content of Si, with suitable Ti3N4Synergistic effect, can reduce it and form the tendency of pin hole.This
Invention improves the content of Mn, and Hard Inclusion phase is formed in aluminium alloy, so as to improve the wear-resisting property of aluminium alloy, reduces friction
Coefficient, improves the heat resistance of matrix, but excessive Mn easily forms excessive Hard Inclusion with other elements, reduces aluminium alloy
Mechanical property and thermal conductivity.Suitable Ni for being added in aluminium alloy of the present invention on the premise of good plasticity and toughness is kept,
The intensity and corrosion resistance of aluminium alloy are effectively increased, and suitable Ni can generate heat-resisting phase with Fe, so as to improve aluminium
The high-temperature heat-resistance ability of alloy, but excessive heat-resisting phase easily forms thick crystal grain and causes tear to alloy matrix aluminum
Effect, so as to reduce the mechanical property of aluminium alloy, it is therefore necessary to control the content of Fe and Ni.It with the addition of in the present invention suitable
Cu, improves the intensity, toughness and corrosion resistance of aluminium alloy, but when Cu additive amounts content excessively be easy to cause heat treatment
Tearing tendency.The suitable nanometer of VC and Ti that the present invention adds in aluminium alloy3N4, effectively increase the intensity of aluminium alloy, resist
Impact property, heat-resisting, acid-alkali-corrosive-resisting and wear-resisting property；Single Ti3N4Easily causing the exception of its crystal grain after addition
Growth, the addition of proper amount of nano VC can suppress Ti3N4The misgrowth of crystal grain, and and Ti3N4The increasing to aluminium alloy is played in collaboration
Pretend use；Suitable nanometer of VC can refine the size of the heat-resisting phase of iron nickel at the same time, reduce its side effect.
Preferably, the gross mass percentage of the Cu and nanometer VC is 0.8~0.95%.
The gross mass percentage control of Cu and VC within the above range, is helped to reduce the stress of aluminium alloy by the present invention
Corrosion cracking sensitiveness, so as to improve the mechanical property of aluminium alloy.
Preferably, the Ti3N4Added with nanometer VC in the form of nano powder.
The present invention uses the VC and Ti of nanostructured3N4It is added in aluminium alloy, improves VC, Ti in fusion process3N4
Wetability and compatibility between molten aluminium alloy, while have the function that to refine matrix crystal grain.
Preferably, the particle diameter of the nanometer VC is 20~40nm, the Ti3N4Particle diameter be 40~75nm.
The present invention is by VC and Ti3N4Size controlling within the above range, can form certain size effect, improve aluminium
The toughness and plasticity of alloy, avoid because of VC and Ti3N4The brittleness of the excessive aluminium alloy easily caused of particle diameter；And the VC of above-mentioned size
And Ti3N4The friction coefficient of aluminium alloy can be effectively reduced, so as to improve its wear-resisting property；Meanwhile the VC with different-grain diameter
And Ti3N4Grading relation is formed, stress can be decayed step by step when aluminium alloy is subject to larger stress, so as to improve aluminium alloy
Shock resistance.
Preferably, the particle diameter of the nanometer VC is 20~30nm, the Ti3N4Particle diameter be 49~55nm.
The present invention is by the present invention by VC and Ti3N4Size controlling within the above range, contribute to control fusion process in
The mobility of alloy molten solution in the reasonable scope, improves pourability, reduces cast difficulty.
Another object of the present invention is to provide a kind of preparation method of swivel base support plate, comprise the following steps,
S1, by Ti3N4Pre-processed with nanometer VC material powders；
S2, will remove Ti3N4It is alloy molten solution with other raw metals heating melting beyond nanometer VC, after adding pretreatment
Ti3N4With nanometer VC material powders, stir evenly；
S3, by after stirring alloy molten solution cast green compact are made, to green compact be heat-treated, get product swivel base support plate.
Preferably, the pretreatment in the step S1 is, by Ti3N4With nanometer VC material powders ultrasonic disperse in scattered
In liquid, then it is freeze-dried, air-flow is milled into powder after freeze-drying.
The present invention is by by VC and Ti3N4Material powder is freeze-dried after disperseing in advance, due to the barrier of dispersion liquid
Effect, effectively reduces the degree of aggregation of nano particle, its dispersiveness in alloy molten solution is significantly improved, so as to improve
Stirring efficiency so that nano-powder can be dispersed in alloy matrix aluminum.
Preferably, the dispersion liquid includes the component of following mass percent：10~13% silane coupling agents acid, 15
~17% polyethylene glycol, 2~6% tartaric acid, surplus are ethanol.
Silane coupling agent acid one end can be with VC and Ti in dispersion liquid of the present invention3N4The active group on surface reacts life
Into chemical bond, the other end can connect polyethylene glycol so as in VC and Ti3N4Surface forms a tunic, produces stronger space bit
Resistance acts on, and increases the repulsive energy between particle, so as to strengthen the dispersiveness and stability of system.Freeze-drying mode being capable of shape
Into more loose VC and Ti3N4, it is adhesive to reduce its.After freeze-drying, silane coupling agent and polyethylene glycol are attached to nanometer
VC and Ti3N4On surface, VC and Ti are reduced3N4Specific surface energy, is at low energy stable state, obstructs between particle
Assemble, merge, grow up, so as to form the less particle of size, be more dispersed in fusion process in alloy molten solution.
The presence of tartaric acid improves the connective stability of polyethylene glycol and silane coupling agent in dispersion liquid.
Preferably, the process of the heat treatment in the step S3 is to treat that green compact temperature is down to 500~530 DEG C after cast
When, it is 30~60MPa to be filled with pressurize gas to pressure, keeps the temperature 3~4h, temperature then is risen to 220~250 DEG C again, insulation 4
~5h, is finally quickly cooled to room temperature.
The present invention will be filled with gas after high tempering heating and be kept the temperature under a certain pressure, effectively reduce swivel base
The possibility of support plate deformation, improves its precision, and improves the uniformity consistency of aluminium alloy internal structure, reduces
The defects of internal porosity, so as to improve the overall performance of swivel base support plate.
Preferably, the pressurize gas is Ar and the mixed gas of ethanol.
The present invention introduces the mixed gas of Ar and ethanol in insulating process, and crackle occurs when effectively reducing quenching
Possibility, improves the surface smoothness and overall performance of swivel base support plate.
Compared with prior art, beneficial effects of the present invention are：On the basis of existing technology to swivel base support plate material
Improved, by the reasonable compatibility to its plate matter component, and by specific preparation method, significantly improve swivel base
Intensity, toughness, impact resistance and the wear-resisting property of support plate, and obtained swivel base support plate light weight, flexibility ratio height,
Performance is stablized, service life length.
Embodiment
It is the specific embodiment of the present invention below, technical scheme is further described, but the present invention is simultaneously
It is not limited to these embodiments.
Embodiment 1~5
A kind of swivel base support plate of embodiment 1~5 is made of aluminium alloy, which includes following mass percent
Component：5.0~6.5%Si, 0.5~0.7%Mn, 0.17~0.35%Mg, 1.3~1.5%Fe, 0.5~0.75%Ni, 0.3
~0.5%Cu, 0.4~0.55% nanometer of VC, 2.8~7.9%Ti3N4, surplus is Al and inevitable impurity.
The gross mass percentage of Cu and nanometer VC is 0.8~0.95%.
Ti3N4Added with nanometer VC in the form of nano powder, the particle diameter of nanometer VC is 20~40nm, more preferably
20~30nm, Ti3N4Particle diameter be 40~75nm, more preferably 49~55nm.
The formula of 1~5 aluminium alloy of embodiment is as shown in Table 1 and Table 2.
Table 1：The component and its mass percent of 1~5 aluminium alloy of embodiment
Table 2：VC and Ti in embodiment 1~53N4Particle diameter
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| VC/nm | 20~40 | 20~30 | 20~30 | 25~35 | 30~40 |
| Ti3N4/nm | 40~50 | 49~55 | 49~55 | 50~60 | 60~75 |
Embodiment 6
The preparation method of the present embodiment transfer seat supports plate, comprises the following steps,
(1), dispensing is carried out according to the composition of raw materials in embodiment 3, by Ti3N4With nanometer VC material powders ultrasonic disperse in
In dispersion liquid, then it is freeze-dried, air-flow is milled into powder after freeze-drying；Dispersion liquid includes following mass percent
Component：10% silane coupling agent acid, 15% polyethylene glycol, 2% tartaric acid, surplus is ethanol；
(2), Ti will be removed3N4It is alloy molten solution with other raw metals heating melting beyond nanometer VC, adds pretreatment
Ti afterwards3N4With nanometer VC material powders, stir evenly；
(3), green compact are made in the alloy molten solution cast after stirring, green compact is heat-treated, get product swivel base support plate；
The process of heat treatment is, after cast when green compact temperature is down to 500 DEG C, it is 60MPa to be filled with pressurize gas to pressure, keeps the temperature 4h,
Then temperature is risen to 220 DEG C again, keeps the temperature 5h, be finally quickly cooled to room temperature, pressurize gas is Ar and the gaseous mixture of ethanol
Body.
Embodiment 7
The preparation method of the present embodiment transfer seat supports plate, comprises the following steps,
(1), dispensing is carried out according to the composition of raw materials in embodiment 3, by Ti3N4With nanometer VC material powders ultrasonic disperse in
In dispersion liquid, then it is freeze-dried, air-flow is milled into powder after freeze-drying；Dispersion liquid includes following mass percent
Component：11% silane coupling agent acid, 16% polyethylene glycol, 3% tartaric acid, surplus is ethanol；
(2), Ti will be removed3N4It is alloy molten solution with other raw metals heating melting beyond nanometer VC, adds pretreatment
Ti afterwards3N4With nanometer VC material powders, stir evenly；
(3), green compact are made in the alloy molten solution cast after stirring, green compact is heat-treated, get product swivel base support plate；
The process of heat treatment is, after cast when green compact temperature is down to 510 DEG C, it is 50MPa to be filled with pressurize gas to pressure, insulation
3.5h, then rises to 230 DEG C by temperature again, keeps the temperature 4.5h, is finally quickly cooled to room temperature, and pressurize gas is Ar and ethanol
Mixed gas.
Embodiment 8
The preparation method of the present embodiment transfer seat supports plate, comprises the following steps,
(1), dispensing is carried out according to the composition of raw materials in embodiment 3, by Ti3N4With nanometer VC material powders ultrasonic disperse in
In dispersion liquid, then it is freeze-dried, air-flow is milled into powder after freeze-drying；Dispersion liquid includes following mass percent
Component：12% silane coupling agent acid, 17% polyethylene glycol, 5% tartaric acid, surplus is ethanol；
(2), Ti will be removed3N4It is alloy molten solution with other raw metals heating melting beyond nanometer VC, adds pretreatment
Ti afterwards3N4With nanometer VC material powders, stir evenly；
(3), green compact are made in the alloy molten solution cast after stirring, green compact is heat-treated, get product swivel base support plate；
The process of heat treatment is, after cast when green compact temperature is down to 520 DEG C, it is 40MPa to be filled with pressurize gas to pressure, insulation
3.5h, then rises to 250 DEG C by temperature again, keeps the temperature 4h, is finally quickly cooled to room temperature, and pressurize gas is mixed for Ar and ethanol
Close gas.
Embodiment 9
The preparation method of the present embodiment transfer seat supports plate, comprises the following steps,
(1), dispensing is carried out according to the composition of raw materials in embodiment 3, by Ti3N4With nanometer VC material powders ultrasonic disperse in
In dispersion liquid, then it is freeze-dried, air-flow is milled into powder after freeze-drying；Dispersion liquid includes following mass percent
Component：13% silane coupling agent acid, 17% polyethylene glycol, 6% tartaric acid, surplus is ethanol；
(2), Ti will be removed3N4It is alloy molten solution with other raw metals heating melting beyond nanometer VC, adds pretreatment
Ti afterwards3N4With nanometer VC material powders, stir evenly；
(3), green compact are made in the alloy molten solution cast after stirring, green compact is heat-treated, get product swivel base support plate；
The process of heat treatment is, after cast when green compact temperature is down to 530 DEG C, it is 30MPa to be filled with pressurize gas to pressure, keeps the temperature 3h,
Then temperature is risen to 250 DEG C again, keeps the temperature 4h, be finally quickly cooled to room temperature, pressurize gas is Ar and the gaseous mixture of ethanol
Body.
Embodiment 10~13
Dispensing is carried out according to the composition of raw materials in embodiment 1,2,4,5 respectively, is carried out according to the preparation method of embodiment 8
The preparation of swivel base support plate.
Comparative example 1
The particle diameter of nanometer VC is 41~60nm, Ti3N4Particle diameter be 76~100nm, other are same as Example 8.
Comparative example 2
Ti3N4Do not pre-processed, be added directly into alloy solution with nanometer VC material powders, other and embodiment 8
It is identical.
Comparative example 3
Ti3N4Forced air drying method is used when being pre-processed with nanometer VC material powders, other are same as Example 8.
Comparative example 4
Ti3N4Ethanol is used when being pre-processed with nanometer VC material powders, and for dispersion liquid, other are same as Example 8.
Comparative example 5
The pressurize gas being filled with quenching process is only Ar, other are same as Example 8.
Comparative example 6
Commercially available common aluminum alloy support plate base.
By embodiment 6~13 compared with the performance of the swivel base support plate of 1~6 transfer seat supports plate of comparative example, compare
The results are shown in Table 3.
Table 3：The performance of embodiment 6~13 and the swivel base support plate of 1~6 transfer seat supports plate of comparative example
In conclusion component of the application by reasonable compatibility swivel base support plate swivel base support plate, and by specifically making
Preparation Method, effectively increases the mechanical property of swivel base support plate, so that the stability and reliability of swivel base support plate are improved,
And extend its service life.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention
The technical staff in field can do described specific embodiment various modifications or additions or in a similar way
Substitute, but without departing from spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of swivel base support plate, it is characterised in that the swivel base support plate is made of aluminium alloy, and the aluminium alloy includes following
The component of mass percent：5.0~6.5%Si, 0.5~0.7%Mn, 0.17~0.35%Mg, 1.3~1.5%Fe, 0.5~
0.75%Ni, 0.3~0.5%Cu, 0.4~0.55% nanometer of VC, 2.8~7.9%Ti3N4, surplus for Al and inevitably it is miscellaneous
Matter.
2. swivel base support plate as described in claim 1, it is characterised in that the gross mass percentage of the Cu and nanometer VC is
0.8~0.95%.
3. swivel base support plate as described in claim 1, it is characterised in that the Ti3N4With nanometer VC with the shape of nano powder
Formula adds.
4. the swivel base support plate as described in claim 1 or 3, it is characterised in that the particle diameter of the nanometer VC is 20~40nm,
The Ti3N4Particle diameter be 40~75nm.
5. swivel base support plate as described in claim 4, it is characterised in that the particle diameter of the nanometer VC is 20~30nm, institute
State Ti3N4Particle diameter be 49~55nm.
6. the preparation method of the swivel base support plate as described in any claim in Claims 1 to 5, it is characterised in that including
Following steps,
S1, by Ti3N4Pre-processed with nanometer VC material powders；
S2, will remove Ti3N4It is alloy molten solution with other raw metals heating melting beyond nanometer VC, adds pretreated
Ti3N4With nanometer VC material powders, stir evenly；
S3, by after stirring alloy molten solution cast green compact are made, to green compact be heat-treated, get product connector.
7. preparation method as described in claim 6, it is characterised in that the pretreatment in the step S1 is, by Ti3N4With
Then nanometer VC material powder ultrasonic disperses are freeze-dried, air-flow is milled into powder after freeze-drying in dispersion liquid.
8. preparation method as described in claim 7, it is characterised in that the dispersion liquid includes the group of following mass percent
Point：10~13% silane coupling agents acid, 15~17% polyethylene glycol, 2~6% tartaric acid, surplus is ethanol.
9. preparation method as described in claim 7, it is characterised in that the process of the heat treatment in the step S3 is to pour
After note when green compact temperature is down to 500~530 DEG C, it is 30~60MPa to be filled with pressurize gas to pressure, keeps the temperature 3~4h, Ran Houzai
Temperature is risen to 220~250 DEG C, 4~5h is kept the temperature, is finally quickly cooled to room temperature.
10. preparation method as described in claim 9, it is characterised in that the pressurize gas is Ar and the gaseous mixture of ethanol
Body.
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