CN110042281A - A kind of cast aluminium alloy gold and preparation method thereof - Google Patents
A kind of cast aluminium alloy gold and preparation method thereof Download PDFInfo
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- CN110042281A CN110042281A CN201910329232.4A CN201910329232A CN110042281A CN 110042281 A CN110042281 A CN 110042281A CN 201910329232 A CN201910329232 A CN 201910329232A CN 110042281 A CN110042281 A CN 110042281A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 70
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000010931 gold Substances 0.000 title claims abstract description 28
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 112
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 20
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 16
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 12
- 229910052706 scandium Inorganic materials 0.000 claims abstract description 12
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 238000007872 degassing Methods 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 56
- 229910052786 argon Inorganic materials 0.000 claims description 28
- 239000011777 magnesium Substances 0.000 claims description 19
- 239000010936 titanium Substances 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 239000004411 aluminium Substances 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 11
- 238000004321 preservation Methods 0.000 claims description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- 230000032683 aging Effects 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000011253 protective coating Substances 0.000 claims description 5
- 239000006104 solid solution Substances 0.000 claims description 5
- 239000008399 tap water Substances 0.000 claims description 5
- 235000020679 tap water Nutrition 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 abstract description 6
- 239000000523 sample Substances 0.000 description 11
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000003723 Smelting Methods 0.000 description 8
- 229910052712 strontium Inorganic materials 0.000 description 6
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 6
- 238000010998 test method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007770 graphite material Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910019752 Mg2Si Inorganic materials 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
- 229910000551 Silumin Inorganic materials 0.000 description 1
- URRHWTYOQNLUKY-UHFFFAOYSA-N [AlH3].[P] Chemical compound [AlH3].[P] URRHWTYOQNLUKY-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- FWGZLZNGAVBRPW-UHFFFAOYSA-N alumane;strontium Chemical compound [AlH3].[Sr] FWGZLZNGAVBRPW-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
- 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
Landscapes
- 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)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention provides a kind of cast aluminium alloy golds and preparation method thereof, cast aluminium alloy gold ingredient includes: Si:7.5~8.5%, Cu:2.5~2.7%, Dy:0.35~0.45%, P:0.02~0.04%, Sc:0.1~0.2%, Ti:0.15~0.19%, Mg:0.4~0.8%, Fe≤0.2%, Mn≤0.1%, Zn≤0.1%, Ni≤0.1%, surplus is Al, and the percentage is weight percentage.Preparation method includes fusing in dry ar gas environment, melt rotary impreller degassing processing, casting, fixation rates., elongation after fracture height high using cast aluminium alloy gold yield strength made from the method for the present invention, impact flexibility are good.
Description
Technical field
The present invention relates to a kind of cast aluminium alloy golds and preparation method thereof.
Background technique
As the lightweight of high speed machine transmission device and structural stability require constantly to be promoted, high speed machine transmitting device
The link member for inside undertaking high speed conveying and shock loading, due to its huge quantity in transmitting device and high-precision dynamic
The conditions such as fitness requirement are moved, the challenge for reducing own wt and promoting flow drag is faced with.Currently, by using casting
It makes aluminium alloy and material substitution and Optimal Structure Designing is carried out to steel chain link, realize lightweight requirements, but routine casting substantially
Aluminium alloy is due to its lower yield strength and elongation after fracture, it is difficult to adapt to the dynamic load and punching that link member is constantly promoted
Hit the plastic deformation variation under load.Therefore, it develops that a kind of yield strength is high, elongation after fracture is high, there is higher impact toughness
Value, and it is able to carry out the cast aluminium alloy material of high-efficiency and continuous production, to the synergy of link member loss of weight is promoted, promote high speed machine
The overall stability technical level of tool transmitting device, has important practical significance.
Although document CN109295352A disclose a kind of high-conductivity aluminum alloy of yield strength higher than 350MPa and its
Preparation method uses optimization cast component, semi-continuous casting and the techniques such as hot-pressed, realizes room-temperature yield strength not
Aluminum alloy materials preparation less than 350MPa.But the preparation process of the material is more complicated, hot extrusion process therein is to mention
It rises the crucial of its performance and strengthens step, it is difficult to high-yield strength component be prepared by casting technique, play the high mechanics of the material
Performance advantage.Document CN108559882A discloses the formula and its smelting critical equipment of a kind of high-yield strength aluminium alloy, adopts
The compound a variety of reinforced alloys elements of addition, stirring melt uniform by permanent magnet, quick and die-casting process are real in aluminum substrate
Existing material preparation, the material composition stability is good, yield strength is up to 328MPa, and preparation process is rationally smooth, can be suitable for big
Scale promotes and applies.But aluminium alloy elongation after fracture after molding is very low, this may make it under the conditions of instantaneous overload, occurs
The instantaneous brittle failure phenomenon of plastic-less deformation, based on the factors such as reliability are related to, which is generally used for preparation and bears static load
The non-important Parts of lotus, it is difficult to which the complexity and high-precision motion for meeting link member cooperate operating condition.Document CN106191569 is disclosed
A kind of wear-resisting silumin and preparation method thereof with dry piston of automobile, using silicon and copper as major alloy phase, with aluminium phosphorus,
Aluminium strontium and Al rare earth alloy are alterant, by melting and pouring forming technology, obtain yield strength up to 385MPa, elongation percentage reaches
14% high performance aluminium materials.This method carries out Metamorphism treatment using phosphorus, strontium and rare earth element, and wherein P elements are mainly
The effect of primary silicon is refined, and strontium element is the effect for playing refining eutectic silicon, when the two appears in alloy melt simultaneously,
P elements and strontium element can be partially formed compound in melt, reduce the thinning effect of strontium element to a certain extent, although can be with
It can reduce or eliminate the interaction between phosphorus, strontium element by increasing strontium element additive amount, but this is unfavorable for concentration and melts
The cost control of refining, in batches pouring technology process.In addition, the Tensile strength of the patent disclosure is 450MPa, it is not directed to
The notched bar impact strength of material, the yield tensile ratio of alloy material are about 0.856, and the link member for bearing dynamic impulsion is such as prepared with it,
There is a problem of that tensile strength is insufficient, material yield tensile ratio is higher, material fragility trend is big, it is difficult to guarantee link member in practical work
The multiple load operation stability requirement of complexity under condition.
Summary of the invention
It is an object of the present invention to provide a kind of yield strength height, the casting aluminium that elongation after fracture is high, impact flexibility is good
Alloy.
In order to realize the purpose, the present invention adopts the following technical scheme that.
A kind of cast aluminium alloy gold, ingredient include:
Si:7.5~8.5%, Cu:2.5~2.7%, Dy (dysprosium): 0.35~0.45%, P:0.02~0.04%, Sc (scandium): 0.1
~0.2%, Ti:0.15~0.19%, Mg:0.4~0.8%, Fe≤0.2%, Mn≤0.1%, Zn≤0.1%, Ni≤
0.1%, surplus Al, the percentage is weight percentage.
Preferably, aforementioned cast aluminium alloy gold consists of the following compositions: Si:7.5%, Cu:2.7%, Dy:0.45%, P:
0.02%, Sc:0.15%, Ti:0.15%, Mg:0.4%, Fe:0.1%, Mn:0.06%, Zn:0.03%, Ni:0.02%,
Surplus is Al, and the percentage is weight percentage.
The second purpose of the present invention is to provide the preparation methods of aforementioned cast aluminium alloy gold.
The preparation method of aforementioned cast aluminium alloy gold, step include:
Step 1: by high-purity aluminium ingot of 99.98wt%, 10 titanium intermediate alloy of aluminium, 30 silicon intermediate alloy of aluminium, 99.8wt% pure magnesium ingot
300~340 DEG C are preheated to after carrying out dry blasting processing respectively, by high-purity aluminium ingot, the 10 titanium intermediate alloy of aluminium, 30 silicon of aluminium after preheating
Intermediate alloy is added in crucible by proper ratio (proper ratio is calculated according to cast aluminium alloy gold ingredient accounting and obtained), and
Heat up fusing in dry ar gas environment, obtains melt A, and melt A temperature is controlled at 690~700 DEG C；
Step 2: the 99.8wt% pure magnesium ingot for being preheated to 300~340 DEG C is added in melt A stirring melt A, and in dry argon
Heat up fusing in compression ring border, obtains melt B, when melt B temperature is up to 730~740 DEG C, keeps the temperature 16-20 minutes；
Step 3: the processing of high-purity argon gas rotary impreller degassing is carried out to melt B using gas refinement machine；Preferably, purity of argon
Not less than 99.99%, argon flow 0.16-0.22m3/ h, revolving speed are 500-540 revs/min, argon pressure 0.3-
0.32MPa, processing time are 23-26 minutes；
Step 4: melt B being warming up to 780~790 DEG C, keeps the temperature 10-13 minutes；It, will be in vacuum item when melt B starts heat preservation
The Al-Cu-P-Sc-Dy precast body of casting forming is placed in the steel casting ladle for being coated with graphite-based protective coating under part, is made prefabricated
Body small end is aligned with the osseotomy site of casting ladle lower wall；Casting ladle is preheated, until casting ladle internal surface temperature reaches 420~460 DEG C；
Step 5: casting ladle being submerged into melt B surface, slow sinking casting ladle makes melt B enter casting ladle by the osseotomy site of casting ladle lower wall
Interior, melt B enters casting ladle and gradually melts Al-Cu-P-Sc-Dy precast body, obtains melt C；With the entrance of melt B, in casting ladle
(aluminium alloy melt surface and casting ladle i.e. in casting ladle in 0.3 to 0.5s period before inside and outside aluminium alloy melt surface coincidence
Outer aluminium alloy melt surface is located exactly at 0.3 to the 0.5s period in face of same level), using rod seal casting ladle lower wall
Aperture；
Step 6: promoted casting ladle, make casting ladle bottom be detached from the upper surface melt C, and with the upper surface melt C keep 10~15mm away from
From；Stirring melt C, mixing time 10-20 minutes；
Step 7: transfer casting ladle to castable station cooperates casting ladle lower part osseotomy site and cast gate, promotes stopper rod, make melt
C enters mold cavity, completes moulding by casting；
Step 8: fixation rates being carried out to the type body of castable, the type body after the completion of fixation rates is first 45~55
DEG C environment in place 28~32h, then in 170~180 DEG C of aging furnace keep the temperature 6.5~7.5h, after heat preservation, 10
Natural cooling in~40 DEG C of air；Preferably, solid solution temperature is 530~538 DEG C, the solution treatment time is 140~165
Minute, the tap water that the hardening media in ageing process is 80~86 DEG C.
The utility model has the advantages that the method for the present invention can increase the effective area of diffusion of alloy elements, shorten the solution treatment time, this
The invention solution treatment time only needs 140~165 minutes, compared to 8 hours solution treatment times of national regulations, when solution treatment
Between shorten 65.63-70.83%；Binary or ternary hardening constituent can not only be formed inside aluminium alloy using the method for the present invention,
Hinder Mg2Si phase is grown up and is assembled, and can reach economic benefits and social benefits humidification to alloy matrix aluminum and crystal boundary；Using the present invention
Cast aluminium alloy gold yield strength made from method is high, elongation after fracture is high, impact flexibility is good, tensile strength up to 482MPa,
Yield strength is up to 387MPa, elongation after fracture up to 16.5%；Compare nick break test according to GB 229-1994 metal Xia Shi
Method is tested, and Akv value is up to 15.6J/cm2。
Detailed description of the invention
Fig. 1 is equipment schematic diagram used in present invention preparation cast aluminium alloy gold, in figure, 1- air inlet, 2- crucible cover, 3-,
Crucible, the first level probe of 4-, 5- inner cover, 6- agitating device, 7- lifting device, 8- stopper rod, 9- precast body, 10- casting ladle, 11-
Second level probe, 12- smelting furnace, the hole 13-.
Specific embodiment
The invention will be further described with attached drawing combined with specific embodiments below, it is pointed out here that following embodiment cannot manage
Solution is limiting the scope of the invention, and those of ordinary skill in the art's content according to the present invention, which is made, some simply to be replaced
It changes or adjusts, it is within the scope of the present invention.
Embodiment 1
A kind of cast aluminium alloy gold, consists of the following compositions: Si:7.5%, Cu:2.7%, Dy:0.45%, P:0.02%,
Sc:0.15%, Ti:0.15%, Mg:0.4%, Fe:0.1%, Mn:0.06%, Zn:0.03%, Ni:0.02%, surplus Al,
The percentage is weight percentage.
In the present embodiment cast aluminium alloy gold the preparation method is as follows:
Step 1: by high-purity aluminium ingot of 99.98wt%, 10 titanium intermediate alloy of aluminium, 30 silicon intermediate alloy of aluminium, 99.8wt% pure magnesium ingot
Dry blasting processing is carried out respectively, and is preheated to 300 DEG C respectively, it will (proper ratio be according in the present embodiment by proper ratio
Cast aluminium alloy gold ingredient accounting is calculated and obtain) the high-purity aluminium ingot of whole, 30 silicon intermediate alloy of aluminium, the 10 titanium intermediate alloy of aluminium of preparation add
Enter and heat up in the silicon carbide crucible 3 in melting resistance furnace 12, (crucible cover 2, earthenware are arranged at melting fire door top by air inlet 1
It is provided with inner cover 5 in the middle part of crucible lid 2,2 side wall of crucible cover is equipped with air inlet 1, as shown in Figure 1) purity is passed through into crucible 3 is
99.8%, flow 1m3The drying argon gas of/h, until it is load melting in crucible 3, melt A is obtained, melt A temperature is controlled 690
℃；
Step 2: crucible cover 2 being removed from crucible 3, the heating power supply of smelting furnace 12 is disconnected, uses the Beater operator of graphite material
Tool carries out top-down circumference stirring, mixing time 3min to melt A；Then 300 DEG C pure will be preheated to using hawkbill
Magnesium ingot is added in melt A, and crucible cover 2 is buckled in the top of smelting furnace 12, is passed through that purity is 99.8%, flow is into crucible 3
1.8m3The drying argon gas of/h, and electrified regulation, obtain melt B, after melt B temperature reaches 740 DEG C, keep the temperature 20 minutes；
Step 3: after melt B is kept the temperature, removing the inner cover 5 at 2 middle part of crucible cover, melt B is carried out using gas refinement machine high
The processing of pure argon rotary impreller degassing；Wherein, purity of argon is not less than 99.99%, argon flow 0.2m3/ h, revolving speed 520
Rev/min, argon pressure 0.3MPa, the processing time is 25 minutes；
Step 4: after rotary impreller degassing, inner cover 5 being put back on crucible cover 2, melt B is warming up to 780 DEG C, heat preservation 10
Minute；When melt B starts heat preservation, by the horn-like precast body 9 of the Al-Cu-P-Sc-Dy thin-walled of casting forming under vacuum conditions
It is placed in the steel casting ladle 10 for being coated with graphite-based protective coating, makes the osseotomy site pair of 9 small end of precast body Yu 10 lower wall of casting ladle
(10 lower wall of casting ladle offers hole 13) together；Casting ladle 10 is preheated, until 10 internal surface temperature of casting ladle reaches 460 DEG C；
Step 5: after the completion of melt B is in 780 DEG C of completion isothermal holdings, and casting ladle 10 preheats, removing the interior of 2 middle part of crucible cover
Casting ladle 10 is vertically slowly submerged melt B surface by lid 5, sinking casting ladle 10 make melt B by 10 lower wall of casting ladle 13 position of aperture into
Enter in casting ladle 10 that (with the decline of casting ladle 10, the melt B in crucible 3 enters casting ladle 10 by 13 position of aperture of 10 lower wall of casting ladle
It is interior), melt B enters casting ladle 10 and gradually melts the horn-like precast body 9 of Al-Cu-P-Sc-Dy thin-walled, obtains melt C；With melt B
Entrance, aluminium alloy melt surface inside and outside casting ladle 10 be overlapped before 0.3 to 0.5s period in, poured using the sealing of stopper rod 8
Wrap the aperture of 10 lower walls；
Step 6: after stopper rod 8 and 10 bottom of casting ladle, which are formed, is fitted close (sealing), passing through 7 vertical-lift casting ladle of lifting device
10, so that 10 bottom of casting ladle is detached from melt C Surface, and at a distance from melt C Surface holding 15mm；10 upper cover two of subsequent start-up casting ladle
The ultrasound homogenization agitating device 6 of side, stirring melt C, mixing time 10min；
Step 7: after the completion of ultrasonic agitation, shifting casting ladle 10 to castable station, make 10 lower part aperture of casting ladle, 13 position and pour
Mouth fitting, is aligned 10 lower part aperture of casting ladle, 13 center with cast gate center, promotes stopper rod 8, so that melt C is entered mold cavity, directly
To completion moulding by casting；
Step 8: fixation rates being carried out to the type body of castable, solid solution temperature is 538 DEG C, and the solution treatment time is
140min, the tap water that the hardening media of ageing treatment is 84 DEG C；Type body after the completion of fixation rates is first in 45 DEG C of ring
32h is placed in border, 7.5h is then kept the temperature in 170 DEG C of aging furnace, and after heat preservation, the natural cooling in 10 DEG C of air is taken
Aluminium alloy type body out.
Cast aluminium alloy gold sample made from the present embodiment is selected, according to GB228.1-2010 metal material stretching test, the
A part: room temperature test method carries out ambient temperature mechanical properties test, and measuring sample tensile strength is 482MPa, and yield strength is
387MPa, elongation after fracture 16.5%；It is tested according to GB229-1994 metal Xia Shi than nick break test method, sample
Product Akv value is 15.6J/cm2。
Embodiment 2
A kind of cast aluminium alloy gold, consists of the following compositions: Si:8.5%, Cu:2.5%, Dy:0.45%, P:0.04%,
Sc:0.2%, Ti:0.19%, Mg:0.8%, Fe:0.2%, Mn:0.1%, Zn:0.1%, Ni:0.1%, surplus Al are described
Percentage is weight percentage.
In the present embodiment cast aluminium alloy gold the preparation method is as follows:
Step 1: by high-purity aluminium ingot of 99.98wt%, 10 titanium intermediate alloy of aluminium, 30 silicon intermediate alloy of aluminium, 99.8wt% pure magnesium ingot
Dry blasting processing is carried out respectively, and is preheated to 340 DEG C respectively, it will (proper ratio be according in the present embodiment by proper ratio
Cast aluminium alloy gold ingredient accounting is calculated and obtain) the high-purity aluminium ingot of whole, 30 silicon intermediate alloy of aluminium, the 10 titanium intermediate alloy of aluminium of preparation add
Enter and heat up in the silicon carbide crucible in melting resistance furnace, (crucible cover arranged at melting fire door top, in crucible cover by air inlet
Portion is provided with inner cover, and crucible cover side wall is equipped with air inlet) be passed through into crucible purity be 99.8%, flow 1.3m3/ h's is dry
Dry argon gas, until it is load melting in crucible, melt A is obtained, melt A temperature is controlled at 700 DEG C；
Step 2: crucible cover being removed from crucible, disconnects smelting furnace heating power supply, using the stirring tool of graphite material to molten
Body A carries out top-down circumference stirring, mixing time 4min；Then the pure magnesium ingot for being preheated to 340 DEG C is added using hawkbill
Enter in melt A, crucible cover be buckled in above smelting furnace, be passed through into crucible purity be 99.8%, flow 1.5m3The drying of/h
Argon gas, and electrified regulation, obtain melt B, after melt B temperature reaches 730 DEG C, keep the temperature 16 minutes；
Step 3: after melt B is kept the temperature, removing the inner cover in the middle part of crucible cover, melt B is carried out using gas refinement machine high-purity
The processing of argon gas rotary impreller degassing；Wherein, purity of argon is not less than 99.99%, argon flow 0.16m3/ h, revolving speed 500
Rev/min, argon pressure 0.3MPa, the processing time is 23 minutes；
Step 4: after rotary impreller degassing, inner cover being put back on crucible cover, melt B is warming up to 790 DEG C, keeps the temperature 13 points
Clock；When melt B starts heat preservation, the horn-like precast body of Al-Cu-P-Sc-Dy thin-walled of casting forming under vacuum conditions is set
In the steel casting ladle for being coated with graphite-based protective coating, precast body small end and the osseotomy site of casting ladle lower wall is made to be aligned (casting ladle
Lower wall offers hole)；Casting ladle is preheated, until casting ladle internal surface temperature reaches 420 DEG C；
Step 5: after the completion of melt B is in 790 DEG C of completion isothermal holdings, and casting ladle preheats, the inner cover in the middle part of crucible cover is removed,
Casting ladle vertically slowly submerges to melt B surface, sinking casting ladle make melt B entered in casting ladle by the osseotomy site of casting ladle lower wall (with
The decline of casting ladle, the melt B in crucible entered in casting ladle by the osseotomy site of casting ladle lower wall), melt B enters casting ladle and gradually melts
Change the horn-like precast body of Al-Cu-P-Sc-Dy thin-walled, obtains melt C；With the entrance of melt B, the aluminium alloy inside and outside casting ladle is molten
In 0.3 to 0.5s period before the coincidence of body surface face, using the aperture of rod seal casting ladle lower wall；
Step 6: after stopper rod and casting ladle bottom, which are formed, is fitted close (sealing), by lifting device vertical-lift casting ladle, making to pour
It wraps bottom and is detached from melt C Surface, and at a distance from melt C Surface holding 10mm；The ultrasound of subsequent start-up casting ladle upper cover two sides is
Homogenize agitating device, stirring melt C, mixing time 20min；
Step 7: after the completion of ultrasonic agitation, transfer casting ladle to castable station is bonded casting ladle lower part osseotomy site with cast gate,
It is aligned casting ladle lower part aperture center with cast gate center, promotes stopper rod, melt C is made to enter mold cavity, until completing to pour into
Type；
Step 8: fixation rates being carried out to the type body of castable, solid solution temperature is 530 DEG C, and the solution treatment time is
165min, the tap water that the hardening media of ageing treatment is 80 DEG C；Type body after the completion of fixation rates is first in 55 DEG C of ring
28h is placed in border, 6.5h is then kept the temperature in 176 DEG C of aging furnace, and after heat preservation, the natural cooling in 20 DEG C of air is taken
Aluminium alloy type body out.
Cast aluminium alloy gold sample made from the present embodiment is selected, according to GB228.1-2010 metal material stretching test, the
A part: room temperature test method carries out ambient temperature mechanical properties test, and measuring sample tensile strength is 476MPa, and yield strength is
381MPa, elongation after fracture 15%；It is tested according to GB229-1994 metal Xia Shi than nick break test method, sample
Akv value is 14.9J/cm2。
Embodiment 3
A kind of cast aluminium alloy gold, consists of the following compositions: Si:7.8%, Cu:2.6%, Dy:0.42%, P:0.035%,
Sc:0.1%, Ti:0.17%, Mg:0.65%, Fe:0.11%, Mn:0.08%, Zn:0.06%, Ni:0.04%, surplus are
Al, the percentage are weight percentage.
In the present embodiment cast aluminium alloy gold the preparation method is as follows:
Step 1: by high-purity aluminium ingot of 99.98wt%, 10 titanium intermediate alloy of aluminium, 30 silicon intermediate alloy of aluminium, 99.8wt% pure magnesium ingot
Dry blasting processing is carried out respectively, and is preheated to 320 DEG C respectively, it will (proper ratio be according in the present embodiment by proper ratio
Cast aluminium alloy gold ingredient accounting is calculated and obtain) the high-purity aluminium ingot of whole, 30 silicon intermediate alloy of aluminium, the 10 titanium intermediate alloy of aluminium of preparation add
Enter and heat up in the silicon carbide crucible in melting resistance furnace, (crucible cover arranged at melting fire door top, in crucible cover by air inlet
Portion is provided with inner cover, and crucible cover side wall is equipped with air inlet) be passed through into crucible purity be 99.8%, flow 1.2m3/ h's is dry
Dry argon gas, until it is load melting in crucible, melt A is obtained, melt A temperature is controlled at 694 DEG C；
Step 2: crucible cover being removed from crucible, disconnects smelting furnace heating power supply, using the stirring tool of graphite material to molten
Body A carries out top-down circumference stirring, mixing time 5min；Then the pure magnesium ingot for being preheated to 320 DEG C is added using hawkbill
Enter in melt A, crucible cover be buckled in above smelting furnace, be passed through into crucible purity be 99.8%, flow 1.7m3The drying of/h
Argon gas, and electrified regulation, obtain melt B, after melt B temperature reaches 733 DEG C, keep the temperature 18 minutes；
Step 3: after melt B is kept the temperature, removing the inner cover in the middle part of crucible cover, melt B is carried out using gas refinement machine high-purity
The processing of argon gas rotary impreller degassing；Wherein, purity of argon is not less than 99.99%, argon flow 0.22m3/ h, revolving speed 540
Rev/min, argon pressure 0.32MPa, the processing time is 26 minutes；
Step 4: after rotary impreller degassing, inner cover being put back on crucible cover, melt B is warming up to 786 DEG C, keeps the temperature 12 points
Clock；When melt B starts heat preservation, the horn-like precast body of Al-Cu-P-Sc-Dy thin-walled of casting forming under vacuum conditions is set
In the steel casting ladle for being coated with graphite-based protective coating, precast body small end and the osseotomy site of casting ladle lower wall is made to be aligned (casting ladle
Lower wall offers hole)；Casting ladle is preheated, until casting ladle internal surface temperature reaches 450 DEG C；
Step 5: after the completion of melt B is in 786 DEG C of completion isothermal holdings, and casting ladle preheats, the inner cover in the middle part of crucible cover is removed,
Casting ladle vertically slowly submerges to melt B surface, sinking casting ladle make melt B entered in casting ladle by the osseotomy site of casting ladle lower wall (with
The decline of casting ladle, the melt B in crucible entered in casting ladle by the osseotomy site of casting ladle lower wall), melt B enters casting ladle and gradually melts
Change the horn-like precast body of Al-Cu-P-Sc-Dy thin-walled, obtains melt C；With the entrance of melt B, the aluminium alloy inside and outside casting ladle is molten
In 0.3 to 0.5s period before the coincidence of body surface face, using the aperture of rod seal casting ladle lower wall；
Step 6: after stopper rod and casting ladle bottom, which are formed, is fitted close (sealing), by lifting device vertical-lift casting ladle, making to pour
It wraps bottom and is detached from melt C Surface, and at a distance from melt C Surface holding 13.5mm；The ultrasound of subsequent start-up casting ladle upper cover two sides
Homogenize agitating device, stirring melt C, mixing time 14min；
Step 7: after the completion of ultrasonic agitation, transfer casting ladle to castable station is bonded casting ladle lower part osseotomy site with cast gate,
It is aligned casting ladle lower part aperture center with cast gate center, promotes stopper rod, melt C is made to enter mold cavity, until completing to pour into
Type；
Step 8: fixation rates being carried out to the type body of castable, solid solution temperature is 535 DEG C, and the solution treatment time is
160min, the tap water that the hardening media of ageing treatment is 86 DEG C；Type body after the completion of fixation rates is first in 40 DEG C of ring
31h is placed in border, 6.8h is then kept the temperature in 180 DEG C of aging furnace, and after heat preservation, the natural cooling in 40 DEG C of air is taken
Aluminium alloy type body out.
Cast aluminium alloy gold sample made from the present embodiment is selected, according to GB228.1-2010 metal material stretching test, the
A part: room temperature test method carries out ambient temperature mechanical properties test, and measuring sample tensile strength is 480MPa, and yield strength is
383MPa, elongation after fracture 14.5%；It is tested according to GB229-1994 metal Xia Shi than nick break test method, sample
Product Akv value is 15.3J/cm2。
Claims (7)
1. a kind of cast aluminium alloy gold, it is characterised in that:
The al alloy component include: Si:7.5~8.5%, Cu:2.5~2.7%, Dy:0.35~0.45%, P:0.02~
0.04%, Sc (scandium): 0.1~0.2%, Ti:0.15~0.19%, Mg:0.4~0.8%, Fe≤0.2%, Mn≤0.1%, Zn
≤ 0.1%, Ni≤0.1%, surplus Al, the percentage are weight percentage.
2. cast aluminium alloy gold according to claim 1, it is characterised in that:
The aluminium alloy following component composition: Si:7.5%, Cu:2.7%, Dy:0.45%, P:0.02%, Sc:0.15%, Ti:
0.15%, Mg:0.4%, Fe:0.1%, Mn:0.06%, Zn:0.03%, Ni:0.02%, surplus Al.
3. cast aluminium alloy gold according to claim 1, it is characterised in that:
The aluminium alloy following component composition: Si:8.5%, Cu:2.5%, Dy:0.45%, P:0.04%, Sc:0.2%, Ti:
0.19%, Mg:0.8%, Fe:0.2%, Mn:0.1%, Zn:0.1%, Ni:0.1%, surplus Al.
4. cast aluminium alloy gold according to claim 1, it is characterised in that:
The aluminium alloy following component composition: Si:7.8%, Cu:2.6%, Dy:0.42%, P:0.035%, Sc:0.1%, Ti:
0.17%, Mg:0.65%, Fe:0.11%, Mn:0.08%, Zn:0.06%, Ni:0.04%, surplus Al.
5. the preparation method of cast aluminium alloy gold according to any one of claims 1-4, it is characterised in that step includes:
Step 1: by high-purity aluminium ingot of 99.98wt%, 10 titanium intermediate alloy of aluminium, 30 silicon intermediate alloy of aluminium, 99.8wt% pure magnesium ingot
300~340 DEG C are preheated to after carrying out dry blasting processing respectively, by high-purity aluminium ingot, the 10 titanium intermediate alloy of aluminium, 30 silicon of aluminium after preheating
Intermediate alloy is added in crucible by proper ratio, and the fusing that heats up in dry ar gas environment, obtains melt A, the control of melt A temperature
At 690~700 DEG C；
Step 2: the 99.8wt% pure magnesium ingot for being preheated to 300~340 DEG C is added in melt A stirring melt A, and in dry argon
Heat up fusing in compression ring border, obtains melt B, when melt B temperature is up to 730~740 DEG C, keeps the temperature 16-20 minutes；
Step 3: the processing of high-purity argon gas rotary impreller degassing is carried out to melt B using gas refinement machine；
Step 4: melt B being warming up to 780~790 DEG C, keeps the temperature 10-13 minutes；It, will be in vacuum item when melt B starts heat preservation
The Al-Cu-P-Sc-Dy precast body of casting forming is placed in the casting ladle for being coated with graphite-based protective coating under part, keeps precast body small
End is aligned with the osseotomy site of casting ladle lower wall；Casting ladle is preheated, until casting ladle internal surface temperature reaches 420~460 DEG C；
Step 5: casting ladle being submerged into melt B surface, slow sinking casting ladle makes melt B enter casting ladle by the osseotomy site of casting ladle lower wall
Interior, melt B enters casting ladle and gradually melts Al-Cu-P-Sc-Dy precast body, obtains melt C；With the entrance of melt B, in casting ladle
In 0.3 to 0.5s period before inside and outside aluminium alloy melt surface coincidence, using the aperture of rod seal casting ladle lower wall；
Step 6: promoted casting ladle, make casting ladle bottom be detached from the upper surface melt C, and with the upper surface melt C keep 10~15mm away from
From；Stirring melt C, mixing time 10-20 minutes；
Step 7: transfer casting ladle to castable station cooperates casting ladle lower part osseotomy site and cast gate, promotes stopper rod, make melt
C enters mold cavity, completes moulding by casting；
Step 8: fixation rates being carried out to the type body of castable, the type body after the completion of fixation rates is first 45~55
DEG C environment in place 28~32h, then in 170~180 DEG C of aging furnace keep the temperature 6.5~7.5h, after heat preservation, 10
Natural cooling in~40 DEG C of air.
6. preparation method according to claim 5, it is characterised in that: in rotary impreller degassing treatment process, argon gas used
Purity is not less than 99.99%, argon flow 0.16-0.22m3/ h, argon pressure 0.3-0.32MPa, revolving speed 500-540
Rev/min, the processing time is 23-26 minutes.
7. preparation method according to claim 6, it is characterised in that: in fixation rates process, solid solution temperature
It is 530~538 DEG C, the solution treatment time is 140~165 minutes, and the hardening media in ageing process is 80~86 DEG C
Tap water.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945041A (en) * | 2020-09-09 | 2020-11-17 | 苏州慧驰轻合金精密成型科技有限公司 | Ultrahigh-strength high-thermal-conductivity semisolid extrusion casting aluminum alloy suitable for new energy automobile and preparation method thereof |
| CN112575231A (en) * | 2020-11-16 | 2021-03-30 | 中国兵器科学研究院宁波分院 | Vacuum refining modification treatment method for A356 high-strength aluminum alloy |
| CN113444929A (en) * | 2021-07-16 | 2021-09-28 | 合肥工业大学 | Microalloying non-heat treatment high-strength and high-toughness die-casting aluminum alloy and preparation process thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1096028A3 (en) * | 1999-10-21 | 2002-02-06 | Kabushiki Kaisha Daiki Aluminium Kogyosho | High-strength aluminum alloy for pressure casting and cast aluminum alloy comprising the same |
| US20030180178A1 (en) * | 2002-03-19 | 2003-09-25 | Szymanowski Richard Brian | Casting process and product |
| CN101117679A (en) * | 2007-08-31 | 2008-02-06 | 成都银河动力股份有限公司 | High-performance aluminum silicon alloy material and heat treatment process for piston |
| CN102071341A (en) * | 2010-12-03 | 2011-05-25 | 中国兵器工业第五二研究所 | Cast aluminum-silicon alloy for engine cylinder head and heat treatment process |
| CN102814486A (en) * | 2011-06-07 | 2012-12-12 | 韦光东 | Manufacturing method for cylinder head of all-terrain vehicle engine |
| CN103103460A (en) * | 2013-02-22 | 2013-05-15 | 福州钜立机动车配件有限公司 | Heat treatment process for recast aluminum alloy material |
| CN103276261A (en) * | 2013-05-28 | 2013-09-04 | 江苏大学 | Preparation method of high-conductivity aluminum alloy |
| CN104911413A (en) * | 2014-03-13 | 2015-09-16 | 深圳市中兴康讯电子有限公司 | Aluminum silicate composition alloy and production method therof |
| RU2563416C1 (en) * | 2014-05-19 | 2015-09-20 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Cast alloy on aluminium basis and product made of it |
| CN107217182A (en) * | 2017-06-08 | 2017-09-29 | 江苏华晟电气科技有限公司 | The manufacture method of aluminium alloy oil pump case and its aluminium alloy oil pump case of manufacture |
| GB2553366A (en) * | 2016-09-06 | 2018-03-07 | Jaguar Land Rover Ltd | A casting alloy |
-
2019
- 2019-04-23 CN CN201910329232.4A patent/CN110042281B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1096028A3 (en) * | 1999-10-21 | 2002-02-06 | Kabushiki Kaisha Daiki Aluminium Kogyosho | High-strength aluminum alloy for pressure casting and cast aluminum alloy comprising the same |
| US20030180178A1 (en) * | 2002-03-19 | 2003-09-25 | Szymanowski Richard Brian | Casting process and product |
| CN101117679A (en) * | 2007-08-31 | 2008-02-06 | 成都银河动力股份有限公司 | High-performance aluminum silicon alloy material and heat treatment process for piston |
| CN102071341A (en) * | 2010-12-03 | 2011-05-25 | 中国兵器工业第五二研究所 | Cast aluminum-silicon alloy for engine cylinder head and heat treatment process |
| CN102814486A (en) * | 2011-06-07 | 2012-12-12 | 韦光东 | Manufacturing method for cylinder head of all-terrain vehicle engine |
| CN103103460A (en) * | 2013-02-22 | 2013-05-15 | 福州钜立机动车配件有限公司 | Heat treatment process for recast aluminum alloy material |
| CN103276261A (en) * | 2013-05-28 | 2013-09-04 | 江苏大学 | Preparation method of high-conductivity aluminum alloy |
| CN104911413A (en) * | 2014-03-13 | 2015-09-16 | 深圳市中兴康讯电子有限公司 | Aluminum silicate composition alloy and production method therof |
| RU2563416C1 (en) * | 2014-05-19 | 2015-09-20 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Cast alloy on aluminium basis and product made of it |
| GB2553366A (en) * | 2016-09-06 | 2018-03-07 | Jaguar Land Rover Ltd | A casting alloy |
| CN107217182A (en) * | 2017-06-08 | 2017-09-29 | 江苏华晟电气科技有限公司 | The manufacture method of aluminium alloy oil pump case and its aluminium alloy oil pump case of manufacture |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945041A (en) * | 2020-09-09 | 2020-11-17 | 苏州慧驰轻合金精密成型科技有限公司 | Ultrahigh-strength high-thermal-conductivity semisolid extrusion casting aluminum alloy suitable for new energy automobile and preparation method thereof |
| CN111945041B (en) * | 2020-09-09 | 2022-03-18 | 苏州慧驰轻合金精密成型科技有限公司 | Ultrahigh-strength high-thermal-conductivity semisolid extrusion casting aluminum alloy suitable for new energy automobile and preparation method thereof |
| CN112575231A (en) * | 2020-11-16 | 2021-03-30 | 中国兵器科学研究院宁波分院 | Vacuum refining modification treatment method for A356 high-strength aluminum alloy |
| CN113444929A (en) * | 2021-07-16 | 2021-09-28 | 合肥工业大学 | Microalloying non-heat treatment high-strength and high-toughness die-casting aluminum alloy and preparation process thereof |
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