CN106402349A - Gearbox aluminum casting fixing base - Google Patents
Gearbox aluminum casting fixing base Download PDFInfo
- Publication number
- CN106402349A CN106402349A CN201610771346.0A CN201610771346A CN106402349A CN 106402349 A CN106402349 A CN 106402349A CN 201610771346 A CN201610771346 A CN 201610771346A CN 106402349 A CN106402349 A CN 106402349A
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- Prior art keywords
- groove
- gear
- fixed seat
- aluminium casting
- box
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/025—Support of gearboxes, e.g. torque arms, or attachment to other devices
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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
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a gearbox aluminum casting fixing base which is made of an aluminum alloy. The gearbox aluminum casting fixing base comprises a gearbox aluminum casting fixing base body and a gearbox aluminum casting fixing base cover. A first through groove, multiple grooves, threaded holes and pin holes are formed in the gearbox aluminum casting fixing base body. A second through groove, a third through groove, a fourth through groove, a fifth through groove, threaded holes and pin holes are formed in the gearbox aluminum casting fixing base cover. According to the gearbox aluminum casting fixing base, the gearbox aluminum casting fixing base body and the gearbox aluminum casting fixing base cover are combined to form a whole, a gear can be fixed more firmly, meanwhile, the groove structure and the pin holes in the gear fixing base make the gear difficult to deviate, and the gearbox aluminum casting fixing base has high abrasion resistance and mechanical strength.
Description
Technical field
The present invention relates to mechanical frock, more particularly, to a kind of gear-box aluminium casting fixed seat.
Background technology
Gear is the colyliform machine components of the engagement transmitting torque relying on tooth, when gear easily produces phase in transmission process
To sliding and offseting, not only damage transmission efficiency, be easily damaged gear simultaneously, substantially reduce the service life of gear, and tooth
Wheel fixed seat needs there is stronger wearability and mechanical property.
Content of the invention
The technical problem to be solved is, for the above-mentioned deficiency of prior art, proposes a kind of raising gear
Stability, wearability and the mechanical property of transmission, prevents a kind of gear fixed seat that gear shifts.
The present invention solves its technical problem, employed technical scheme comprise that, proposes a kind of gear-box aluminium casting fixed seat, by aluminum
Alloy is made, and it includes：
Gear-box aluminium casting fixed seat, described gear-box aluminium casting fixed seat includes：
First groove, described first groove is to be combined by several circular grooves；
Multiple grooves, located at gear-box aluminium casting fixed seat lower surface, multiple grooves are looped around above-mentioned the plurality of groove
Around first groove；
Circular groove is installed, described installation circular groove is located on described gear-box aluminium casting fixed seat bottom surface, described installation circular groove is even
Logical above-mentioned multiple grooves, described multiple groove parts with circular groove is installed inwall as border；
Seat cover fixed by gear-box aluminium casting, and it is solid that described gear-box aluminium casting fixing seat cover edge covers on said gear case aluminium casting
Upper, the fixing seat cover of described gear-box aluminium casting includes for reservation：
Second groove, described second groove is positioned at the surface of the first groove, and the first groove and the second groove are coaxial
Groove；
3rd groove, described 3rd groove is to be combined by several circular grooves not of uniform size, and it is located at said gear
The left surface of the fixing seat cover of case aluminium casting；
4th groove, described 4th groove is to be combined by several circular grooves not of uniform size, and it is located at described gear
The right flank of the fixing seat cover of case aluminium casting, described 4th groove and the 3rd groove are coaxial groove；
Screw thread groove, described screw thread groove is located at the leading flank of the fixing seat cover of said gear case aluminium casting；
The composition of described aluminium alloy is by mass percentage：Si1～2%, Fe0.1～0.2%, Mn0.2～0.4%,
Cu0.5～2%, Mg1.5～3.5%, Zn6～10%, Ce0.1～0.25%, Y0.05～0.1%, balance of aluminum, wherein Ce
Content ratio with Y is 1～2: 1, and Mg, Si content ratio is 2～2.5: 1.
In the aluminium alloy proportioning of the present invention, add 0.1～0.2% Si can improve mobile performance, improve alloy simultaneously
Tensile strength and hardness, if addition is excessive, can crystallize precipitation Si, lead to the machinability of aluminium alloy to reduce, in alloy
Cu element also can form Al-Mg-Cu alloy, strengthens the mechanical property of alloy, but Cu element addition is crossed conference and leads to aluminum to close
The corrosion resistance of gold reduces, and the addition of Zn can put forward heavy alloyed compactness, and dissolubility in Al for the Zn is big, can improve aluminum
The intensity of alloy, adds Ce and Y element, the inner electron of Ce and Y is in undersaturated condition, and atomic radius is relatively in the alloy
Greatly, the outermost two S electronics of electronic shell and a 5d electronics of time outer layer are easily lost, can with the gas in aluminium alloy also
There is impurity to react, aluminium alloy solution is played with the effect of purification, Ce and Y can with solid solution in the base, and room between
There is stronger interaction energy, the migration of dislocation and solute atoms can be stoped, Ce and Y is in aluminium alloy from the mistake of liquid phase crystallization
Cheng Zhongke is with crystal grain thinning, pinning dislocation, and when the ratio of Ce and Y is 1～2: 1, can play the synergism of maximum,
Limits lift the performance of aluminium alloy.
Add Mg element in the alloy, Al-Mg-Si alloy can be formed, during alloy is formed, can separate out
Mg2Si mesophase, this mesophase is in disperse state, and αsolidsolution crystalline temperature battle array can be promoted to be distorted, thus improving aluminium alloy
Mechanical strength, but if the ratio of Mg, Si element is excessive, can make in fusion-casting process, Mg is oxidized to form impurity, enable aluminum alloy to
Become fragile.
Further, the surrounding of described second groove is uniformly distributed eight screwed holes.
Further, four screwed holes and two pin-and-holes are formed around described 3rd groove.
Further, four screwed holes are formed around described 4th groove.
Further, the side surface of described gear-box aluminium casting fixed seat forms three pin-and-holes and four screwed holes.
Further, described installation circular groove periphery is provided with five fixing grooves.
Further, in described aluminium alloy, Elements C e is not more than 0.3% by mass percentage with the total amount of Y.
Due to Ce with dissolubility in aluminium liquid for the Y less, if so will strictly control the amount that Ce and Y adds excessive, Ce
Can separate out on crystal boundary on the contrary with Y element, form low-melting-point eutectic, the performance of the aluminium alloy of reduction.
A kind of preparation method of gear-box aluminium casting fixed seat, comprises the following steps：
S1：Smelting furnace is preheated to 200～300 DEG C；
S2：Configure the raw material of described composition, after raw material mix homogeneously, add smelting furnace in be warming up to 680～700 DEG C complete
Fine melt turns to liquation, and wherein raw material aluminum divides 3～5 times and is separately added into；
S3：Add the refining agent that mass percent is 0.5～0.8% in aluminium liquid, described refining agent is mass percent
60～70% hexachlorethane, 10～20% prodan, the mixture of 10～20% carnallite, through refinery by de-gassing 15
Stand 5～10min after～20min, in refining process, be passed through the mixed gas of nitrogen and carbon tetrachloride, institute from melting furnace bottom
Stating nitrogen and carbon tetrachloride in mixed gas is 5～6: 1 by volume, and the aluminium liquid after refine is removed the gred pours into aluminium ingot, by aluminum
Ingot machining obtains gear-box aluminium casting fixed seat.
Before adding raw material, smelting furnace is preheated, it is possible to reduce raw material forms excessive aluminium slag after adding, reduce
The generation of impurity, and raw material aluminum is dividedly in some parts it is ensured that can be sufficiently mixed between the raw material of other elements and aluminum it is ensured that
The quality of melting.The hexachlorethane of mass percent 60～70%, 10～20% prodan, 10～20% carnallite
Mixture can fast decoupled at high temperature, be combined the surface spilling into aluminium liquid with the hydrogen in aluminium liquid and impurity it is ensured that aluminium liquid melts
There is after refining preferable performance, the mixture providing by using the present invention, more can be improved and hydrogen and impurity by synergism
Binding ability, the final product performance obtaining is more preferable.CCl4 can be decomposed into C and chlorine in high temperature, and chlorine can be with aluminum
Generate AlCl3 gas, chlorine can also be combined generation HCl, the therefore addition of CCl4 with hydrogen simultaneously, not only can tie with hydrogen
Close, take hydrogen out of, other gas can also be generated, from another point of view, considerably increase the content of bubble, be conducive in aluminium liquid
The removal of hydrogen, and because HCl belongs to irritating gas, therefore, the ratio of N2 and CCl4 is suitable, it is to avoid pollution operation ring
Border.
Further, the mixture of Al2O3, TiC and SiC whisker, described whisker mixture in described refining process, are added
Draw ratio be 15～18: 1, wherein said Al2O3 whisker length is 6～10 μm, and the length of described TiC and SiC whisker is 3
～5 μm.
Al2O3, TiC and SiC whisker is added in aluminium liquid fusion process, the effect strengthening aluminium base can be played,
Because Al2O3, TiC and SiC whisker assumes irregular form in Al, non-directional, aluminium alloy than usual can be obtained
The higher performance of material, has preferably wear-resisting, heat conduction and mechanical strength, adds the length of whisker that the performance of aluminium alloy is played
Important effect, if whisker is long, can lead to produce larger defect in the matrix of aluminium alloy, can substantially reduce aluminum on the contrary
The performance of alloy, and if whisker is too short, the inner dispersion of aluminium alloy uneven it is difficult to play non-directional to aluminium alloy material
The lifting of material performance, and suitable draw ratio can improve degree of scatter in aluminium base for the whisker, can be lifted final further
The performance of aluminium alloy.
The present invention, by gear-box aluminium casting fixed seat and the fixing seat cover of gear-box aluminium casting are combined into an entirety, makes
Fixed gear more firm, gear fixed seat fovea superior slot structure and pin-and-hole make gear be difficult to shift, using aluminum simultaneously
The gear-box aluminium casting fixed seat of alloy preparation has stronger wearability and mechanical property.
Brief description
Fig. 1 is the perspective view of the present invention；
Fig. 2 is the sectional view of A-A of the present invention；
Fig. 3 is the sectional view of B-B of the present invention；
Fig. 4 is the top view of the present invention.
Specific embodiment
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Refer to Fig. 1-Fig. 4, the present invention, a kind of gear fixed seat includes gear-box aluminium casting fixed seat 200 and gear-box
Seat cover 100 fixed by aluminium casting, and described gear-box aluminium casting fixed seat 200 includes：
First groove 210, described first groove 210 is to be combined by 6 circular grooves, the upper port of the first groove 210
Upwardly extend one projection of formation, described projection is a round platform cutting out concentric cylinder；
Multiple grooves 220, the lower surface of described gear-box aluminium casting fixed seat 200 is provided with multiple grooves 220, and described is many
Individual groove is looped around around above-mentioned first groove 210, and the plurality of groove 220 is mounting groove；
Circular groove 230 is installed, described installation circular groove is located at described gear-box aluminium casting fixed seat 200 bottom surface, described installation circle
Groove 230 connects above-mentioned multiple grooves 220, described multiple groove parts with circular groove 230 is installed inwall as border；
Seat cover 100 fixed by gear-box aluminium casting, and described gear-box aluminium casting fixing seat cover 100 edge covers on said gear case aluminum
In foundry goods fixed seat 200, the fixing seat cover of described gear-box aluminium casting includes：
Second groove 110, described second groove is a cylinder groove, and described second groove 110 is in above-mentioned first and leads to
The surface of groove 210, described first groove 210 and described second groove 110 are coaxial groove；
3rd groove 120, described 3rd groove 120 is to be combined by several circular grooves not of uniform size, and it is located at upper
State the left surface of the fixing seat cover 100 of gear-box aluminium casting；
4th groove 130, described 4th groove 130 is to be combined by several circular grooves not of uniform size, and it is located at institute
State the right flank of the fixing seat cover 100 of gear-box aluminium casting, described 4th groove and the 3rd groove are coaxial groove, described four-way
The inner port (port being in the fixing cover of gear) of groove 130 extends inwards, forms an annular projection；
Screw thread groove 140, described screw thread groove 140 is located at the leading flank of the fixing seat cover 100 of said gear case aluminium casting.
The surrounding of described second groove 110 is uniformly distributed eight screwed holes 150, for fixed adjustment gear, axle relative
Position.
Described 3rd groove 120 surrounding forms four screwed holes and two pin-and-holes, for fixing and adjusting the relative position of axle
Put.
Described 4th groove 130 surrounding forms four screwed holes, for fixing and adjusting the relative position of gear, axle.
Three pin-and-holes and four screwed holes are formed on the side surface of described gear-box aluminium casting fixed seat 200.Pin-and-hole rises solid
It is set for using, screwed hole can adjust gear shaft and the relative position of gear fixed seat, also play certain fixation.
Described installation circular groove 220 periphery is provided with five fixing grooves 240, fixed gear fixed seat.
The preparation method embodiment of the gear-box aluminium casting fixed seat of the present invention is as follows：
Embodiment 1
S1：Smelting furnace is preheated to 200 DEG C；
S2：Configure the raw material of described composition, by mass percentage for：Si1%, Fe0.1%, Mn0.2%, Cu2%,
Mg2%, Zn6%, Ce0.1%, Y0.05%, balance of aluminum, after raw material mix homogeneously, add in smelting furnace and be warming up to 700 DEG C
It is completely melt as liquation, wherein raw material aluminum divides 3 times and is separately added into；
S3：Add the mixture of Al2O3, TiC and SiC whisker in liquation, the draw ratio of described whisker mixture is
15: 1, wherein said Al2O3 whisker length is 6 μm, and the length of described TiC and SiC whisker is 5 μm, and addition mass percent is
0.5% refining agent, described refining agent is the hexachlorethane of mass percent 70%, 10% prodan, 20% light halogen
The mixture of stone, stands 10min after refinery by de-gassing 20min, in refining process, is passed through nitrogen and tetrachloro from melting furnace bottom
Change the mixed gas of carbon, in described mixed gas, nitrogen and carbon tetrachloride are 5: 1 by volume, and the aluminium liquid after refine is removed the gred is poured
Form aluminium ingot, aluminium ingot machining is obtained gear-box aluminium casting fixed seat.
Embodiment 2
S1：Smelting furnace is preheated to 300 DEG C；
S2：Configure the raw material of described composition, by mass percentage for：Si1.5%, Fe0.2%, Mn0.3%, Cu1%,
Mg3%, Zn8%, Ce0.2%, Y0.1%, balance of aluminum, after raw material mix homogeneously, add in smelting furnace and be warming up to 680 DEG C
It is completely melt as liquation, wherein raw material aluminum divides 5 times and is separately added into；
S3：Add the mixture of Al2O3, TiC and SiC whisker in liquation, the draw ratio of described whisker mixture is
18: 1, wherein said Al2O3 whisker length is 10 μm, and the length of described TiC and SiC whisker is 4 μm, and addition mass percent is
0.7% refining agent, described refining agent is the hexachlorethane of mass percent 70%, 20% prodan, 10% light halogen
The mixture of stone, stands 10min after refinery by de-gassing 20min, in refining process, is passed through nitrogen and tetrachloro from melting furnace bottom
Change the mixed gas of carbon, after nitrogen and carbon tetrachloride are 6: 1 removing liquid level residues by volume in described mixed gas, pour into
Aluminium ingot, aluminium ingot machining is obtained gear-box aluminium casting fixed seat.
Embodiment 3
S1：Smelting furnace is preheated to 250 DEG C；
S2：Configure the raw material of described composition, by mass percentage for：Si1.5%, Fe0.15%, Mn0.3%, Cu1%,
Mg3%, Zn10%, Ce0.1%, Y0.1%, balance of aluminum, after raw material mix homogeneously, add in smelting furnace and be warming up to 690 DEG C
It is completely melt as liquation, wherein raw material aluminum divides 4 times and is separately added into；
S3：Add the mixture of Al2O3, TiC and SiC whisker in liquation, the draw ratio of described whisker mixture is
15～18: 1, wherein said Al2O3 whisker length is 7 μm, and the length of described TiC and SiC whisker is 4 μm, adds percent mass
The refining agent for 0.5～0.8% for the ratio, described refining agent is the hexachlorethane of mass percent 60%, 20% prodan,
The mixture of 20% carnallite, stands 10min after refinery by de-gassing 15min, in refining process, is passed through from melting furnace bottom
Nitrogen and the mixed gas of carbon tetrachloride, in described mixed gas, nitrogen and carbon tetrachloride are that 5: 1 removing liquid levels are residual by volume
After slag, pour into aluminium ingot, aluminium ingot machining is obtained gear-box aluminium casting fixed seat.
Embodiment 4
S1：Smelting furnace is preheated to 200 DEG C；
S2：Configure the raw material of described composition, by mass percentage for：Sil%, Fe0.2%, Mn0.4%, Cul%,
Mg2.3%, Zn6%, Ce0.15%, Y0.1%, balance of aluminum, after raw material mix homogeneously, add in smelting furnace and be warming up to 680
～700 DEG C are completely melt as liquation, and wherein raw material aluminum divides 5 times and is separately added into；
S3：Add the mixture of Al2O3, TiC and SiC whisker in liquation, the draw ratio of described whisker mixture is
18: 1, wherein said Al2O3 whisker length is 6 μm, and the length of described TiC and SiC whisker is 5 μm, and addition mass percent is
0.5% refining agent, described refining agent is the hexachlorethane of mass percent 70%, 15% prodan, 15% light halogen
The mixture of stone, stands 8min after refinery by de-gassing 15min, in refining process, is passed through nitrogen and tetrachloro from melting furnace bottom
Change the mixed gas of carbon, after in described mixed gas, nitrogen and carbon tetrachloride are 5.5: 1 removing liquid level residues by volume, cast
Become aluminium ingot, aluminium ingot machining is obtained gear-box aluminium casting fixed seat.
Embodiment 5
S1：Smelting furnace is preheated to 260 DEG C；
S2：Configure the raw material of described composition, by mass percentage for：Si1%, Fe0.2%, Mn0.4%, Cu2%,
Mg2.4%, Zn10%, Ce0.15%, Y0.1%, balance of aluminum, after raw material mix homogeneously, add in smelting furnace and be warming up to
690 DEG C are completely melt as liquation, and wherein raw material aluminum divides 3 times and is separately added into；
S3：Add the mixture of Al2O3, TiC and SiC whisker in liquation, the draw ratio of described whisker mixture is
18: 1, wherein said Al2O3 whisker length is 10 μm, and the length of described TiC and SiC whisker is 3 μm, and addition mass percent is
0.8% refining agent, described refining agent is the hexachlorethane of mass percent 70%, 10% prodan, 20% light halogen
The mixture of stone, stands 10min after refinery by de-gassing 20min, in refining process, is passed through nitrogen and tetrachloro from melting furnace bottom
Change the mixed gas of carbon, after nitrogen and carbon tetrachloride are 6: 1 removing liquid level residues by volume in described mixed gas, pour into
Aluminium ingot, aluminium ingot machining is obtained gear-box aluminium casting fixed seat.
Comparative example 1
This comparative example is only with the difference of embodiment 1, and the aluminium alloy in this comparative example is common aluminum alloy.
Comparative example 2
This comparative example is only with the difference of embodiment 1, and the material composition Ce of configuration, the percentage composition total amount of Y element are
1%.
Comparative example 3
This comparative example is only with the difference of embodiment 1, and refining agent only adds hexachlorethane.
Comparative example 4
This comparative example is only with the difference of embodiment 1, and it is nitrogen that bottom is passed through gas.
Comparative example 5
This comparative example is only with the difference of embodiment 1, is added without the mixture of Al2O3, TiC and SiC whisker in refine.
Table 1 embodiment and comparative example performance comparison data
Had by the gear-box aluminium casting fixed seat that the performance comparison of embodiment and comparative example can be seen that present invention preparation
Preferably wearability and mechanical property.
Specific embodiment described herein is only explanation for example to present invention spirit.The affiliated technology of the present invention is led
The technical staff in domain can be made various modifications or supplement or replaced using similar mode to described specific embodiment
Generation, but the spirit without departing from the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of gear-box aluminium casting fixed seat, be made up of aluminium alloy it is characterised in that：Including：
Gear-box aluminium casting fixed seat, described gear-box aluminium casting fixed seat includes：
First groove, described first groove is to be combined by several circular grooves；
Multiple grooves, the plurality of groove is looped around above-mentioned first located at gear-box aluminium casting fixed seat lower surface, multiple grooves
Around groove；
Circular groove is installed, described installation circular groove is located on described gear-box aluminium casting fixed seat bottom surface, in described installation circular groove connection
The multiple grooves stated, described multiple groove parts with circular groove is installed inwall as border；
Seat cover fixed by gear-box aluminium casting, and described gear-box aluminium casting fixing seat cover edge covers on said gear case aluminium casting fixed seat
On, the fixing seat cover of described gear-box aluminium casting includes：
Second groove, described second groove is positioned at the surface of the first groove, and the first groove and the second groove are coaxial groove；
3rd groove, described 3rd groove is to be combined by several circular grooves not of uniform size, and it is located at said gear case aluminum
The left surface of the fixing seat cover of foundry goods；
4th groove, described 4th groove is to be combined by several circular grooves not of uniform size, and it is located at described gear-box aluminum
The right flank of the fixing seat cover of foundry goods, described 4th groove and the 3rd groove are coaxial groove；
Screw thread groove, described screw thread groove is located at the leading flank of the fixing seat cover of said gear case aluminium casting；
The composition of described aluminium alloy is by mass percentage：Si1～2%, Fe0.1～0.2%, Mn0.2～0.4%, Cu0.5～
2%, Mg1.5～3.5%, Zn6～10%, Ce0.1～0.25%, Y0.05～0.1%, balance of aluminum, wherein Ce are contained with Y's
Amount ratio is 1～2: 1, and Mg, Si content ratio is 2～2.5: 1.
2. a kind of gear-box aluminium casting fixed seat according to claim 1 it is characterised in that：Around described second groove
It is uniformly distributed eight screwed holes.
3. a kind of gear-box aluminium casting fixed seat according to claim 1 it is characterised in that：Shape around described 3rd groove
Become four screwed holes and two pin-and-holes.
4. a kind of gear-box aluminium casting fixed seat according to claim 1 it is characterised in that：Shape around described 4th groove
Become four screwed holes.
5. a kind of gear-box aluminium casting fixed seat according to claim 1 it is characterised in that：Described gear-box aluminium casting is solid
Three pin-and-holes and four screwed holes are formed on the side surface of reservation.
6. a kind of gear-box aluminium casting fixed seat according to claim 1 it is characterised in that：Described installation circular groove periphery
It is provided with five fixing grooves.
7. a kind of gear-box aluminium casting fixed seat according to claim 1 it is characterised in that：In described aluminium alloy, element
The total amount of Ce and Y is not more than 0.3% by mass percentage.
8. a kind of preparation method of gear-box aluminium casting fixed seat it is characterised in that：Comprise the following steps：
S1：Smelting furnace is preheated to 200～300 DEG C；
S2：Configure the raw material of described composition, after raw material mix homogeneously, add smelting furnace in be warming up to 680～700 DEG C completely molten
Turn to liquation, wherein raw material aluminum divides 3～5 times and is separately added into；
S3：The refining agent accounting for aluminium liquid mass percent respectively 0.5～0.8% and 0.5～0.8% whisker is added to mix in liquation
Compound, described refining agent is the hexachlorethane of mass percent 60～70%, 10～20% prodan, 10～20% light
The mixture of halogen stone, stands 5～10min after refinery by de-gassing 15～20min, and the aluminium liquid after refine is removed the gred pours into aluminum
Ingot, aluminium ingot machining is obtained gear-box aluminium casting fixed seat.
9. a kind of gear-box aluminium casting fixed seat according to claim 8 preparation method it is characterised in that：Described whisker
Mixture is the mixture of Al2O3, TiC and SiC whisker, and the draw ratio of described whisker mixture is 15～18: 1, wherein institute
State Al2O3 whisker length and be 6～10 μm, the length of described TiC and SiC whisker is 3～5 μm.
10. a kind of gear-box aluminium casting fixed seat according to claim 8 preparation method it is characterised in that：Refine
Cheng Zhong, is passed through the mixed gas of nitrogen and carbon tetrachloride, in described mixed gas, nitrogen and carbon tetrachloride are pressed from melting furnace bottom
Volume ratio is 5～6: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771346.0A CN106402349A (en) | 2016-08-30 | 2016-08-30 | Gearbox aluminum casting fixing base |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771346.0A CN106402349A (en) | 2016-08-30 | 2016-08-30 | Gearbox aluminum casting fixing base |
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| 李念奎，凌杲: "《铝合金材料及其热处理技术》", 30 April 2012 * |
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