CN103526084A - Silicone oil clutch and making method thereof - Google Patents
Silicone oil clutch and making method thereof Download PDFInfo
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- CN103526084A CN103526084A CN201310464664.9A CN201310464664A CN103526084A CN 103526084 A CN103526084 A CN 103526084A CN 201310464664 A CN201310464664 A CN 201310464664A CN 103526084 A CN103526084 A CN 103526084A
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Abstract
The invention relates to a silicone oil clutch and a making method thereof, and belongs to the technical field of alloy materials. The silicone oil clutch mainly comprises, by mass, 7.5-9.5% of Si, 3.0-4.0% of Cu, 0.1-0.5% of Mn, 0.02-0.1% of Mg, 1.0-1.3% of Fe, 0.1-0.5% of Ni, 1.0-1.6% of Zn, 0.01-0.35% of Sn, 0.5% or less of other impurity elements, and the balance Al. The making method of the silicone oil clutch comprises the following steps: burdening above element components according to above mass percentages; preheating a crucible, coating the inner wall and the bottom of the crucible with a coating, adding above ingredients, fusing, removing slag, refining, and degassing; die-casting through semisolid die casting; and carrying out heat treatment of a die-casted casting to obtain the silicone oil clutch, wherein the heat treatment comprises solid solution treatment and aging treatment. The silicone oil clutch has the advantages of reasonable compatibility, simple technology, high mechanical properties and long service life.
Description
Technical field
The present invention relates to a kind of silicon oil clutch and preparation method thereof, belong to aluminum alloy materials technical field.
Background technology
Traditional silicon oil clutch, as medium, utilizes the full-bodied characteristic transmitting torque of silicone oil with silicone oil.Utilize the temperature of air after scatterer, by temperature detector, automatically control the separated of fan clutch and engage.The principle of work of silicon oil filled fan clutch is: (1), when engine cold starting or little load operation, water coolant and the gas flow temperature by scatterer are not high, and oil supply hole is closed by valve block, and in working chamber, without silicone oil, clutch coupling is in separate stage.When main drive shaft rotates, only due to the friction of sealed hair felt collar and bearing, make fan in company with housing slipping on main drive shaft, rotating speed is extremely low.(2) when engine load increases, cooling fluid and the gas flow temperature by scatterer increase, temperature detector temperature distortion and drive valve shaft and valve block to rotate.When the gas flow temperature of the temperature detector of flowing through is high, oil supply hole is fully opened, so silicone oil enters working chamber from oil storage chamber.Silicone oil is thickness very, and active plate can utilize the viscosity of silicone oil to drive housing and fan to rotate.Now fan clutch is in engagement state, and rotation speed of the fan improves rapidly.(3) when engine load reduces, the temperature of the temperature detector of flowing through is low, and temperature detector restores to the original state, and valve block is closed oil supply hole, and in working chamber, fluid continues to flow back to oil storage chamber from oil return hole, until get rid of sky.Silicon oil clutch is got back to again separate stage.
Current silicon oil clutch is owing to being subject to the impact of own and outside atmosphere, and energy loss is larger.In prior art, generally by adjusting or change the methods such as parts, shape and structure connection of silicon oil clutch, improve silicon oil clutch handiness at work, extend the work-ing life of silicon oil clutch.
Summary of the invention
The object of the present invention is to provide a kind of good mechanical property, long service life silicon oil clutch.
Object of the present invention is achieved through the following technical solutions, a kind of silicon oil clutch, the composition of described silicon oil clutch and mass percent thereof are: Si:7.5%-9.5%, Cu:3.0%-4.0%, Mn:0.1%-0.5%, Mg:0.02%-0.1%, Fe:1.0%-1.3%, Ni:0.1%-0.5%, Zn:1.0%-1.6%, Sn:0.01%-0.35%, other impurity element total content≤0.5%, surplus is aluminium.
Silicon oil clutch of the present invention is to take A380.0 aluminium alloy as research object, pass through lot of experiments, on the basis of matrix alloy, adjust the content between each element, especially strictly controlled the content of Cu and Zn, Cu content is controlled between 3.0%-4.0%, Zn content is controlled between 1.0%-1.6%, make the synergy producing between each element in the aluminium alloy of silicon oil clutch reach good effect, thereby the mechanical property that improves silicon oil clutch, extends its work-ing life.If Cu content is less than 3.0% in silicon oil clutch of the present invention, the cutting ability of silicon oil clutch meeting extreme difference, if but Cu content is greater than 4.0%, not only can make the plasticity variation of silicon oil clutch, also can increase cost.If Zn content is too small, while being less than 1.0%, the mobility of silicon oil clutch is poor, and then affect its plasticity, if but Zn too high levels, while being greater than 1.6%, the easy anchor of silicon oil clutch that production obtains splits, and has a strong impact on the performance of silicon oil clutch, shortens its work-ing life.
Wherein, copper is a kind of requisite element of tensile strength, endurance and extensibility that improves aluminium alloy.Copper is the same with aluminium element has face-centred cubic structure.The lattice parameter of copper and aluminium differs greatly, but copper can be dissolved in aluminium, therefore in silicon oil clutch, adds after copper, and very large distortion occurs the dot matrix of aluminium, can produce very significant strengthening effect.Along with the raising of copper content, the intensity of silicon oil clutch sharply raises but unit elongation acutely declines.In silicon oil clutch, contain more than 3.0% copper, can make strengthening effect more obvious.But if copper content surpasses 4%, not only can cause extensibility to decline, mobility variation, also can increase cost.The present invention is for guaranteeing processing characteristics and better unit elongation, through great many of experiments, comprehensively by copper content control at 3.0%-4.0%.
In silicon oil clutch, magnesium and silicon coexist, after Overheating Treatment with Mg
2the state of Si is separated out, and can improve the mechanical propertys such as the tensile strength of silicon oil clutch and hardness.If but the content of magnesium is less than 0.02%, described effect will be minimum.On the contrary, if Mg content is too high, while surpassing 0.1%, the elongation of silicon oil clutch will decline.Therefore, silicon oil clutch of the present invention is controlled at 0.02%-0.1% by Mg content.
Manganese element is in silicon oil clutch, and part is dissolved in alloy matrix aluminum, can refinement material structure, improve recrystallization temperature, and strengthen the thermotolerance of silicon oil clutch.During manganese too high levels, can when cast, generate thick crystallisate, reduce the extensibility of silicon oil clutch.Meanwhile, manganese element can also in and the deleterious effect that brings of Iron in Aluminium Alloy element.In order to stop too much manganese grain coarsening, the present invention is controlled at the manganese content in silicon oil clutch aluminium alloy between 0.1%-0.5%.
Ferro element is as transition element, its under equilibrium conditions hardly solid solution in aluminium, and the intermetallic compound with the disperse of high-temperature stable high elastic coefficient exists, thereby strengthening matrix and crystal boundary make silicon oil clutch aluminium alloy have good high temperature comprehensive mechanical property.The iron content that the present invention chooses needs Rational choice, can not infinitely expand its content, because iron content is when too high, iron is with FeAl
3, Fe
2al
7be present in silicon oil clutch aluminium alloy with sheet or the acicular structure of Al-Si-Fe, can reduce its mechanical property, this tissue can make the mobility of silicon oil clutch lower, ardent property increases, cause foundry goods to crack, increase the fragility of foundry goods, thereby reduce its work-ing life.Because the adhesive attraction of the low mould of aluminium alloy is very strong, particularly strong when iron level is lower, along with the increase of iron level, mold sticking greatly alleviates, therefore the present invention is controlled at iron level between 1.0%-1.3% again.
Adding zinc element is separately very limited to the raising of silicon oil clutch intensity, also there is stress corrosion crack tendency simultaneously, when but zinc element and magnesium elements coexist, by the synergy between element, can form strengthening phase Mg/Zn2, can obviously put forward heavy alloyed mobility, increase red brittleness, tensile strength and yield strength, reduce solidity to corrosion.In order to weaken the deleterious effect of zinc element, utilize its advantageous effect, the mass percent of zinc element can not be too high, research by experiment, in silicon oil clutch of the present invention, the content of zinc element is that 1.0%-1.6% is best.
In silicon oil clutch, add appropriate nickel element and can improve intensity and the hardness of silicon oil clutch, reduce solidity to corrosion.Nickel is similar to the effect of iron, can reduce the corrode of silicon oil clutch aluminium alloy to mould, simultaneously again can in and the harmful effect of iron.But the source of nickel lacks, if nickel too high levels can increase production cost, therefore nickel content is 0.1%-0.5% in the present invention.
Tin element is low melting point metal, and in silicon oil clutch aluminium alloy, solid solubility is little, adds in right amount tin element and can slightly reduce alloy strength, but can improve cutting ability.
In above-mentioned silicon oil clutch al alloy component, impurity element is mainly the detrimental impurity elements such as carbon, sulphur.
Further preferably, the composition of described silicon oil clutch and mass percent thereof are: Si:8.0%, Cu:3.5%, Mn:0.2%, Mg:0.05%, Fe:1.1%, Ni:0.2%, Zn:1.2%, Sn:0.03%, other impurity element total content≤0.5%, surplus is aluminium.
Further preferably, the composition of described silicon oil clutch and mass percent thereof are: Si:7.5%, Cu:4.0%, Mn:0.5%, Mg:0.02%, Fe:1.0%, Ni:0.4%, Zn:1.1%, Sn:0.01%, other impurity element total content≤0.5%, surplus is aluminium.
Further preferably, the composition of described silicon oil clutch and mass percent thereof are: Si:9.5%, Cu:3.0%, Mn:0.1%, Mg:0.1%, Fe:1.3%, Ni:0.1%, Zn:1.6%, Sn:0.3%, other impurity element total content≤0.5%, surplus is aluminium.
Another object of the present invention is to provide a kind of preparation method of above-mentioned silicon oil clutch, and the method comprises the following steps:
S1, according to the mass percent batching of above-mentioned each elemental composition;
S2, crucible is preheating to 180-210 ℃, at the inwall of crucible and bottom even, is coated with and coats, be then preheating to and be garnet, add batching in batches, after aluminum alloy melting becomes aluminium liquid, skim, intensification refining degasification, standing 6-10min, slagging-off;
S3, first by discontinuous mechanical stirring device, aluminium liquid is prepared into aluminium alloy semi-solid slurry, then the injection chamber that slurry in crucible is sent into pressure die-casting machine is carried out to die cast; Teeming temperature in described die cast is 670-720 ℃, and die casting temperature is 130-170 ℃, and injection speed is 0.2-0.8m/s, and the static pressure after filling type and while solidifying is 15-30MPa;
S4, the foundry goods after die cast is heat-treated, thermal treatment comprises solution treatment and ageing treatment, and wherein solid solution temperature is 460-500 ℃, is incubated and after 1-3 hour, carries out immediately quench treatment, aging temperature is 160-180 ℃, is incubated naturally cooling after 5-7 hour and obtains silicon oil clutch.
In prior art general with liquid die casting by silicon oil clutch die cast, but during liquid die cast because liquid viscosity is less, flow rate is larger, easily with turbulent flow pattern moulding, so easily there is hole during moulding, loosen, the defect such as segregation.The present invention is directed to this phenomenon and adopt semi-solid state die cast.During semi-solid state moulding, owing to there being a certain amount of solid phase, so viscosity is large, flow rate is less, and easily, with the flow pattern moulding of laminar flow, organizing of moulding is finer and close, even.Contrast by experiment to such an extent that adopt better that tensile strength, the unit elongation of the silicon oil clutch that semi-solid state die cast obtains obtain than liquid die casting.Its reason is, in the process of at high temperature moulding of liquid die casting silicon oil clutch, molten metal easily involves in gas, thereby makes generation pore in the silicon oil clutch after moulding, these pores expand and cause pore to increase fire when silicon oil clutch is heat-treated, and have reduced the performance of silicon oil clutch.But the mold temperature of semi-solid state die casting is below liquidus temperature, and during than liquid condition shaping, temperature low tens is spent, and forming parts is difficult for wrapping up in gas, and numbers of hole is few, the dense structure of the silicon oil clutch of moulding.When thermal treatment, can not cause air porous expandedly yet, can improve by thermal treatment the performance of silicon oil clutch.After solution treatment, α-A1 that the element of low solubility dissolves in matrix and eutectic structure in eutectic structure grows up together with matrix, has separated out the strengthening phase Mg of disperse in ag(e)ing process subsequently
2si, so intensity is significantly improved.After deliberation after silicon-oil clutch die-casting thermal treatment, semi-solid state die casting is compared with liquid die casting, in heat treatment process, matrix during unlike liquid condition shaping, presents obvious short distance dentrite.On the contrary, the matrix rounding more that becomes.Because semi-solid state profiled member has tissue more uniformly, so the strengthening phase of separating out along crystal boundary is more evenly distributed, the silicon oil clutch mechanical property that die casting obtains is better.
Again because tissue, composition and the particle size distribution thereof of the aluminium diecast alloy of silicon oil clutch of the present invention are extremely inhomogeneous, the Primary α-Al Phase mainly distributing with dendritic morphology, primary Si phase, faller gill shape Si and aluminium form (α+Si) eutectic phase and intermetallic compound forms.Also has the tiny CuAl on Al/Si crystal boundary
2, laminar β phase (Al
5feSi), some granular AlSiFeMn quaternarys are separated out mutually.And the quality of die casting mechanical property depends on form, the size of primary crystal α-Al, eutectic and primary silicon and intermetallic compound and distributes.No matter be that α-Al matrix or primary crystal Si or eutectic structure are all significantly by refinement, originally dendritic morphology is refined as approximate spherical equally distributed α primary crystal and (α+Si) eutectic under different injection speeds, the increase of die casting speed, a dendrite is shortened, secondary dendrite arm spacing reduces, and the size of primary crystal Si, distributes more evenly, on average directly diminishes and circularity improves, and larger with the degree of different injection speed refinements, organize also fine and close.The CuAl that tissue is mainly separated out by white α-Al matrix (comprising primary α-Al and eutectic α-Al) and metallic compound mode
2phase, AlFeSi equate to form.In addition, at intercrystalline, also there is the precipitate of black, because injection speed has a huge impact form and the distribution of the intermetallic compound in tissue, CuAl
2mutually and iron mutually major part be distributed in edge and the centre of α phase, when α is by refinement and while being uniformly distributed, CuAl
2mutually mutually correspondingly with iron obtain refinement, from original herring-bone form AlSiFeMn, become mutually particulate state, make to reduce the β phase (Al of alloy property
5feSi) compound volume mark reduces, and improves alloy property.The present invention is studied by the injection speed in double solid die casting of great many of experiments, while finding that injection speed increases to 0.6m/s by 0.2m/s, silicon oil clutch because interaction has been separated out the second-phase that is insoluble in matrix, is improved the hardness of silicon oil clutch when moulding, and curve rises; While continuing to increase to 0.8m/s along with injection speed, the second-phase quantity that silicon oil clutch is separated out when moulding reduces, and has caused the reduction of hardness, makes curve on a declining curve.Change curve and the changes in hardness of die casting silicon oil clutch impact toughness are roughly the same, present rising, but do not occur downward trend.When injection speed is 0.2-0.6m/s, along with the increase of injection speed, impact toughness increasess slowly, and while continuing to increase injection speed to 0.8m/s, impact toughness reaches peak value.Due to the increase of injection speed, crystal grain has little time to grow up, and forms relatively all even tiny crystal grain.Crystal grain is more tiny, and crystal boundary is more tortuous, is more unfavorable for the propagation of crackle, and then can absorb more energy in the process of impacting, and shows higher toughness, so curve presents ascendant trend.Therefore when the present invention is in conjunction with teeming temperature, die casting, other factors such as die temperature, are strictly controlled at 0.2-0.8m/s by injection speed.
In addition, the present invention adopts the T6 thermal treatment of solution treatment and ageing treatment combination, collocation by thermal treatment temp and soaking time realizes and in solution treatment, obtains the supersaturation aluminum alloy solution body that Mg, Si element are evenly distributed, obtain eutectic Si phase tiny, nodularization, and ageing treatment is evenly separated out Mg
2the object of Si strengthening phase, thus the mechanical property of raising silicon oil clutch extends its work-ing life.
Wherein, in the preparation method of above-mentioned silicon oil clutch, the coating that is evenly applied to crucible inwall and bottom described in step S2 is 5% water glass, 22.5% zinc oxide and suitable quantity of water three's mixture.
In the preparation method of above-mentioned silicon oil clutch, the refining temperature described in step S2 is 720-730 ℃.
In this preparation method, the detrimentally affect by degassing process with air-breathing in elimination silicon oil clutch press casting procedure and coarse grains.As preferably, the present invention passes into nitrogen rotation degasification and carries out refining, after refining, after standing 6-10min, removes the gred.
In the preparation method of above-mentioned silicon oil clutch, the temperature that injection chamber is sent in the semi-solid state die casting described in step S3 is 560-600 ℃, than the low 100 ℃ of left and right of liquid cast temperature.
In the preparation method of upper silicon oil clutch, the aluminium alloy teeming temperature described in step S4 in die cast is 690-710 ℃, and die casting temperature is 140-160 ℃, and injection speed is 0.3-0.7m/s, and the static pressure after filling type and while solidifying is 15-20MPa.If teeming temperature is too low, can cause foundry goods to produce pore, cold shut, misrun and shrinkage cavity defect, therefore the present invention the teeming temperature in die cast is controlled between 690-710 ℃, to guarantee that aluminium liquid is full of casting mold.If teeming temperature is too high, can make again foundry goods cooling slowly, foundry goods is organized thick, mechanical properties decrease.In addition, it is slow sooner after first slow that pouring speed is wanted, in casting process, guarantee as far as possible liquid stream steadily.
In the preparation method of above-mentioned silicon oil clutch, the solid solubility temperature described in step S5 is 480-490 ℃, and solution time is 2 hours, and the aging temp of ageing treatment is 165-175 ℃, and aging time is 6 hours.
In the preparation method of above-mentioned silicon oil clutch, the quench treatment described in step S5 is carried out in water temperature is the tank of 50-60 ℃.Silicon oil clutch is in quenching heat-processed, and solution strengthening is dissolved in aluminium sosoloid mutually, is quenching fast when cooling, and sosoloid has little time to separate out, and obtains supersaturated solid solution, therefore improves intensity, hardness, toughness and the plasticity of silicon oil clutch.Known after deliberation, after Overheating Treatment, originally thin scutellate eutectic silicon is assembled and nodularization when quenching heating, become circular or oval-shaped particle intercrystalline precipitation, wherein speed of cooling is faster, and precipitated phase is thinner, thereby improves the resistance to elevated temperatures of silicon oil clutch.
Silicon oil clutch tool of the present invention has the following advantages:
1, silicon oil clutch of the present invention has strictly been controlled the content proportioning of each element in aluminium alloy on the basis of A380.0 aluminium alloy, especially the content of Cu and Zn, make the formula of silicon oil clutch of the present invention more reasonable, each element and content thereof produce synergy, make the good mechanical property of silicon oil clutch of the present invention, thereby increase the service life length.
2, preparation method's simple possible of silicon oil clutch of the present invention, the thermal treatment that selection by semi-solid state die casting, injection speed and solid solution, timeliness combine, make the silicon oil clutch mechanical property that makes high, its machinability is good, tensile strength is good, yield strength is good, fatigue strength is good, elongation is good, the security and the reliability that silicon oil clutch are met in work, require.
Embodiment
Be below specific embodiments of the invention, technical scheme of the present invention is further described, but the present invention is not limited to these embodiment.
Embodiment 1:
The composition of silicon oil clutch and mass percent thereof are: Si:8.0%, Cu:3.5%, Mn:0.2%, Mg:0.05%, Fe:1.1%, Ni:0.2%, Zn:1.2%, Sn:0.03%, other impurity element total content≤0.5%, surplus is aluminium, according to the mass percent batching of above-mentioned each elemental composition;
Crucible is preheating to 200 ℃, inwall and bottom even at crucible are coated 5% water glass, 22.5% zinc oxide and suitable quantity of water three's mixture, then be preheating to and be garnet, add batching in batches, after becoming aluminium liquid, aluminum alloy melting skims, pass into nitrogen rotation degasification and when temperature is 730 ℃, carry out refining, standing 8min after refining, slagging-off;
First by discontinuous mechanical stirring device, aluminium liquid is prepared into aluminium alloy semi-solid slurry, then the injection chamber that slurry in crucible is sent into pressure die-casting machine is carried out to die cast; Teeming temperature in described die cast is 680 ℃, and die casting temperature is 140 ℃, and injection speed is 0.6m/s, and the static pressure after filling type and while solidifying is 160x10
5pa;
Foundry goods after die cast is heat-treated, thermal treatment comprises solution treatment and ageing treatment, and wherein solid solution temperature is 480 ℃, carries out immediately quench treatment after being incubated 3 hours, aging temperature is 170 ℃, be incubated 6 hours after naturally cooling obtain silicon oil clutch.
The mechanical property of the silicon oil clutch obtaining through above-mentioned preparation method is in Table one.
Embodiment 2:
The composition of silicon oil clutch and mass percent thereof are: Si:7.5%, Cu:4.0%, Mn:0.5%, Mg:0.02%, Fe:1.0%, Ni:0.4%, Zn:1.1%, Sn:0.01%, other impurity element total content≤0.5%, surplus is aluminium, according to the mass percent batching of above-mentioned each elemental composition;
Crucible is preheating to 200 ℃, inwall and bottom even at crucible are coated 5% water glass, 22.5% zinc oxide and suitable quantity of water three's mixture, then be preheating to and be garnet, add batching in batches, after becoming aluminium liquid, aluminum alloy melting skims, pass into nitrogen rotation degasification and when temperature is 720 ℃, carry out refining, standing 8min after refining, slagging-off;
First by discontinuous mechanical stirring device, aluminium liquid is prepared into aluminium alloy semi-solid slurry, then the injection chamber that slurry in crucible is sent into pressure die-casting machine is carried out to die cast; Teeming temperature in described die cast is 690 ℃, and die casting temperature is 150 ℃, and injection speed is 0.4m/s, and the static pressure after filling type and while solidifying is 160x10
5pa;
Foundry goods after die cast is heat-treated, thermal treatment comprises solution treatment and ageing treatment, and wherein solid solution temperature is 485 ℃, carries out immediately quench treatment after being incubated 2 hours, aging temperature is 175 ℃, be incubated 5 hours after naturally cooling obtain silicon oil clutch.
The mechanical property of the silicon oil clutch obtaining through above-mentioned preparation method is in Table one.
Embodiment 3:
The composition of silicon oil clutch and mass percent thereof are: Si:9.5%, Cu:3.0%, Mn:0.1%, Mg:0.1%, Fe:1.3%, Ni:0.1%, Zn:1.6%, Sn:0.3%, other impurity element total content≤0.5%, surplus is aluminium, according to the mass percent batching of above-mentioned each elemental composition;
Crucible is preheating to 200 ℃, inwall and bottom even at crucible are coated 5% water glass, 22.5% zinc oxide and suitable quantity of water three's mixture, then be preheating to and be garnet, add batching in batches, after becoming aluminium liquid, aluminum alloy melting skims, pass into nitrogen rotation degasification and when temperature is 725 ℃, carry out refining, standing 8min after refining, slagging-off;
First by discontinuous mechanical stirring device, aluminium liquid is prepared into aluminium alloy semi-solid slurry, then the injection chamber that slurry in crucible is sent into pressure die-casting machine is carried out to die cast; Teeming temperature in described die cast is 710 ℃, and die casting temperature is 160 ℃, and injection speed is 0.8m/s, and the static pressure after filling type and while solidifying is 160x10
5pa;
Foundry goods after die cast is heat-treated, thermal treatment comprises solution treatment and ageing treatment, and wherein solid solution temperature is 490 ℃, carries out immediately quench treatment after being incubated 1 hour, aging temperature is 180 ℃, be incubated 7 hours after naturally cooling obtain silicon oil clutch.
The mechanical property of the silicon oil clutch obtaining through above-mentioned preparation method is in Table one.
Table one: the mechanical property of silicon oil clutch
In table one, comparative example is that code name is the mechanical property of the aluminium alloy of A380.0.
In sum, silicon oil clutch better mechanical property of the present invention, long service life.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (10)
1. a silicon oil clutch, the composition of this silicon oil clutch and mass percent thereof are: Si:7.5%-9.5%, Cu:3.0%-4.0%, Mn:0.1%-0.5%, Mg:0.02%-0.1%, Fe:1.0%-1.3%, Ni:0.1%-0.5%, Zn:1.0%-1.6%, Sn:0.01%-0.35%, other impurity element total content≤0.5%, surplus is aluminium.
2. silicon oil clutch according to claim 1, it is characterized in that, the composition of described silicon oil clutch and mass percent thereof are: Si:8.0%, Cu:3.5%, Mn:0.2%, Mg:0.05%, Fe:1.1%, Ni:0.2%, Zn:1.2%, Sn:0.03%, other impurity element total content≤0.5%, surplus is aluminium.
3. silicon oil clutch according to claim 1, it is characterized in that, the composition of described silicon oil clutch and mass percent thereof are: Si:7.5%, Cu:4.0%, Mn:0.5%, Mg:0.02%, Fe:1.0%, Ni:0.4%, Zn:1.1%, Sn:0.01%, other impurity element total content≤0.5%, surplus is aluminium.
4. silicon oil clutch according to claim 1, it is characterized in that, the composition of described silicon oil clutch and mass percent thereof are: Si:9.5%, Cu:3.0%, Mn:0.1%, Mg:0.1%, Fe:1.3%, Ni:0.1%, Zn:1.6%, Sn:0.3%, other impurity element total content≤0.5%, surplus is aluminium.
5. a preparation method for silicon oil clutch as claimed in claim 1, is characterized in that, the method comprises the following steps:
S1, according to the mass percent batching of above-mentioned each elemental composition;
S2, by crucible preheating, at the inwall of crucible and bottom even, be coated with and coat, be then preheating to and be garnet, add batching in batches, after aluminum alloy melting becomes aluminium liquid, skim, intensification refining degasification, standing rear slagging-off;
S3, first by discontinuous mechanical stirring device, aluminium liquid is prepared into aluminium alloy semi-solid slurry, then the injection chamber that slurry in crucible is sent into pressure die-casting machine is carried out to die cast; Teeming temperature in described die cast is 670-720 ℃, and die casting temperature is 130-170 ℃, and injection speed is 0.2-0.8m/s, and the static pressure after filling type and while solidifying is 15-30MPa;
S4, the foundry goods after die cast is heat-treated, thermal treatment comprises solution treatment and ageing treatment, and wherein solid solution temperature is 460-500 ℃, is incubated and after 1-3 hour, carries out immediately quench treatment, aging temperature is 160-180 ℃, is incubated naturally cooling after 5-7 hour and obtains silicon oil clutch.
6. the preparation method of silicon oil clutch according to claim 5, is characterized in that, the refining temperature described in step S2 is 720-730 ℃.
7. the preparation method of silicon oil clutch according to claim 5, is characterized in that, the temperature that injection chamber is sent in the semi-solid state die casting described in step S3 is 560-600 ℃.
8. the preparation method of silicon oil clutch according to claim 5, it is characterized in that, aluminium alloy teeming temperature described in step S4 in die cast is 690-710 ℃, die casting temperature is 140-160 ℃, injection speed is 0.3-0.7m/s, and the static pressure after filling type and while solidifying is 15-20MPa.
9. the preparation method of silicon oil clutch according to claim 5, is characterized in that, the solid solubility temperature described in step S5 is 480-490 ℃, and solution time is 2 hours, and the aging temp of ageing treatment is 165-175 ℃, and aging time is 6 hours.
10. the preparation method of silicon oil clutch according to claim 5, is characterized in that, the water temperature of the quench treatment described in step S5 is 50-60 ℃.
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| CN104630577A (en) * | 2015-01-26 | 2015-05-20 | 上海交通大学 | Heat-resistant cast aluminum alloy and pressure casting method thereof |
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| CN105568083A (en) * | 2016-03-02 | 2016-05-11 | 慈溪阿尔特新材料有限公司 | High-strength high-toughness aluminum alloy material suitable for semi-solid state rheology die casting and preparing method of high-strength high-toughness aluminum alloy material |
| CN105936995A (en) * | 2016-06-29 | 2016-09-14 | 贵州华科铝材料工程技术研究有限公司 | Aluminum alloy material replacing QT400 automobile control arm and semi-solid state die-casting forming method of aluminum alloy material |
| CN106191554A (en) * | 2016-07-01 | 2016-12-07 | 宁波东浩铸业有限公司 | A kind of generator's cover |
| CN107058816A (en) * | 2017-01-23 | 2017-08-18 | 沈阳工业大学 | A kind of semi-solid-state shaping hypereutectic Al Si alloys and preparation method thereof |
| WO2018099272A1 (en) * | 2016-12-02 | 2018-06-07 | 比亚迪股份有限公司 | Semisolid die-casting aluminum alloy and method for preparing semisolid die-casting aluminum alloy castings |
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| CN108673061A (en) * | 2018-05-17 | 2018-10-19 | 山东河山机械股份有限公司 | A kind of preparation method of silicon oil clutch shell |
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| CN104357714A (en) * | 2014-11-07 | 2015-02-18 | 辽宁工程技术大学 | Aluminum-silicon alloy and preparation method thereof |
| CN104561689A (en) * | 2015-01-26 | 2015-04-29 | 上海交通大学 | Heat-resistant cast aluminum alloy and extrusion casting method thereof |
| CN104630577A (en) * | 2015-01-26 | 2015-05-20 | 上海交通大学 | Heat-resistant cast aluminum alloy and pressure casting method thereof |
| CN105441751A (en) * | 2015-11-18 | 2016-03-30 | 宁波市鄞州银鑫铝业有限公司 | Aluminum pipe special for warmer |
| CN105525158A (en) * | 2016-02-19 | 2016-04-27 | 福建省金瑞高科有限公司 | Semi-solid die-casting aluminum alloy material and die-casting molding method using same |
| CN105568083A (en) * | 2016-03-02 | 2016-05-11 | 慈溪阿尔特新材料有限公司 | High-strength high-toughness aluminum alloy material suitable for semi-solid state rheology die casting and preparing method of high-strength high-toughness aluminum alloy material |
| CN105936995B (en) * | 2016-06-29 | 2019-03-08 | 贵州华科铝材料工程技术研究有限公司 | A kind of aluminum alloy materials and its semisolid pressure casting forming method substituting QT400 automobile control arm |
| CN105936995A (en) * | 2016-06-29 | 2016-09-14 | 贵州华科铝材料工程技术研究有限公司 | Aluminum alloy material replacing QT400 automobile control arm and semi-solid state die-casting forming method of aluminum alloy material |
| CN106191554A (en) * | 2016-07-01 | 2016-12-07 | 宁波东浩铸业有限公司 | A kind of generator's cover |
| CN106191554B (en) * | 2016-07-01 | 2017-12-01 | 宁波东浩铸业有限公司 | A kind of generator's cover |
| WO2018099272A1 (en) * | 2016-12-02 | 2018-06-07 | 比亚迪股份有限公司 | Semisolid die-casting aluminum alloy and method for preparing semisolid die-casting aluminum alloy castings |
| CN107058816A (en) * | 2017-01-23 | 2017-08-18 | 沈阳工业大学 | A kind of semi-solid-state shaping hypereutectic Al Si alloys and preparation method thereof |
| CN108220708A (en) * | 2018-01-25 | 2018-06-29 | 无锡市德力流体科技有限公司 | A kind of die casting aluminium pump seat preparation method for hydraulic power unit |
| CN108673061A (en) * | 2018-05-17 | 2018-10-19 | 山东河山机械股份有限公司 | A kind of preparation method of silicon oil clutch shell |
| CN108673061B (en) * | 2018-05-17 | 2019-11-22 | 山东河山机械有限公司 | A kind of preparation method of silicon oil clutch shell |
| CN110735070A (en) * | 2019-10-24 | 2020-01-31 | 珠海格力节能环保制冷技术研究中心有限公司 | Aluminum alloy material, wear-resistant part, preparation method and scroll compressor |
| CN110735070B (en) * | 2019-10-24 | 2021-07-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Aluminum alloy material, wear-resistant part, preparation method and scroll compressor |
| CN112813315A (en) * | 2020-12-30 | 2021-05-18 | 重庆百吉四兴压铸有限公司 | High-performance transmission box aluminum alloy |
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