WO2023103201A1 - 一种非热处理高韧性压铸铝硅合金及其制备方法 - Google Patents
一种非热处理高韧性压铸铝硅合金及其制备方法 Download PDFInfo
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- 238000004512 die casting Methods 0.000 title claims abstract description 96
- 229910000676 Si alloy Inorganic materials 0.000 title claims abstract description 49
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 36
- 238000005266 casting Methods 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000005070 sampling Methods 0.000 claims abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 52
- 238000007670 refining Methods 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 23
- 238000004458 analytical method Methods 0.000 claims description 18
- 239000002893 slag Substances 0.000 claims description 18
- 239000012535 impurity Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 14
- 150000002910 rare earth metals Chemical class 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 229910001415 sodium ion Inorganic materials 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 94
- 239000000956 alloy Substances 0.000 abstract description 94
- 229910052782 aluminium Inorganic materials 0.000 abstract description 69
- 229910052799 carbon Inorganic materials 0.000 abstract description 22
- 229910052802 copper Inorganic materials 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 127
- 239000002184 metal Substances 0.000 description 119
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 55
- 230000000052 comparative effect Effects 0.000 description 44
- 239000011777 magnesium Substances 0.000 description 37
- 238000003723 Smelting Methods 0.000 description 29
- 238000002844 melting Methods 0.000 description 19
- 230000008018 melting Effects 0.000 description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 17
- 239000002699 waste material Substances 0.000 description 17
- 229910018131 Al-Mn Inorganic materials 0.000 description 16
- 229910018461 Al—Mn Inorganic materials 0.000 description 16
- 229910018575 Al—Ti Inorganic materials 0.000 description 16
- 239000000843 powder Substances 0.000 description 16
- 238000005507 spraying Methods 0.000 description 16
- 229910018182 Al—Cu Inorganic materials 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 14
- 229910052710 silicon Inorganic materials 0.000 description 14
- -1 aluminum rare earth Chemical class 0.000 description 13
- 230000008569 process Effects 0.000 description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 229910052746 lanthanum Inorganic materials 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000007872 degassing Methods 0.000 description 9
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- 230000004048 modification Effects 0.000 description 9
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- 229910052706 scandium Inorganic materials 0.000 description 8
- 229910052733 gallium Inorganic materials 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 238000004064 recycling Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 229910021365 Al-Mg-Si alloy Inorganic materials 0.000 description 2
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- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- VRAIHTAYLFXSJJ-UHFFFAOYSA-N alumane Chemical compound [AlH3].[AlH3] VRAIHTAYLFXSJJ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/04—Casting aluminium or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
-
- 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
Definitions
- the invention relates to the technical field of metal materials, in particular to a non-heat-treated high-toughness die-casting aluminum-silicon alloy and a preparation method thereof.
- 1 ton of recycled aluminum can reduce the emission of about 11.5 tons of carbon dioxide in total.
- the economic benefits of recycled aluminum are significant.
- the production of primary aluminum involves bauxite mining, long-distance transportation, etc.
- the production of alumina and thermal electrolytic aluminum consumes a lot of energy. Compared with the production of primary aluminum, the production cost of secondary aluminum is lower.
- scrap aluminum With the rapid growth of the social holdings of scrap aluminum in my country and the continuous improvement of the recycling system of waste resources, the price of scrap aluminum is expected to drop further, and the cost advantage of recycled aluminum production over thermal electrolysis of primary aluminum will become more prominent; or use clean energy to electrolyze primary aluminum Aluminum, ie no carbon dioxide emissions, this clean energy includes hydropower, wind power or photovoltaic energy.
- the automobile industry proposes that the large-scale one-piece body structure requires the tensile strength of the aluminum alloy die-casting to be greater than 180MPa, the yield strength to be greater than 120MPa, and the elongation to be greater than 10%.
- traditional Al-Si alloys have good strength and good casting properties, they have poor plasticity and low elongation, and the material cannot meet the requirements of large-scale integral molded die-casting parts for automobiles.
- the development of high-toughness aluminum alloys has received more and more attention.
- the Silafont-36 alloy (patent publication number: US 6364970B1) developed by Rheinland, Germany, which stretches at room temperature The rate is not higher than 6%. After a long time of T7 heat treatment, the tensile strength is about 210Mpa, the yield strength is 140Mpa, and the elongation is 15%, which can meet the requirements of automotive structural parts. This process has low production efficiency and complex heat treatment process. Good control, high cost of heat treatment.
- the non-heat treatment strengthened high-strength and high-toughness die-casting Al-Mg-Si alloy (patent publication number: CN 108754256A) developed by Shanghai Jiaotong University.
- the alloy has excellent mechanical properties, but the Al-Mg-Si alloy has poor casting performance and high
- the magnesium content is easy to oxidize and burn, and the aluminum liquid has high viscosity and high shrinkage rate, which has great erosion on the die-casting mold and reduces the life of the mold. It is not suitable for large body structural parts.
- the non-heat-treated self-strengthening aluminum-silicon alloy (patent publication number: CN 104831129A) developed by Fengyang Aiersi and Shanghai Jiaotong University has a high degree of control over impurity elements and cannot be produced with waste aluminum, which cannot meet the future carbon requirements.
- the demand group under the background of peak and carbon neutrality, and the elongation rate of castings under precision die casting is about 7.5%, which cannot meet the high toughness requirements for large body structural parts at this stage.
- a high-strength and tough die-casting aluminum alloy (patent publication number: CN109881056A) developed by Shanghai Yongmaotai Auto Parts and Shanghai Jiaotong University. Although the alloy has good casting performance, the elongation of the alloy in the die-casting non-heat treatment state is only 7%.
- the invention provides a non-heat-treated high-toughness die-casting aluminum-silicon alloy and a preparation method thereof, which reduce the carbon emission generated in the production process, and the elongation can reach 11%-16% without heat treatment.
- the embodiment of the present invention provides a non-heat-treated high-toughness die-casting aluminum-silicon alloy. Based on the total weight of the alloy, the weight percentage of each component in the die-casting aluminum-silicon alloy is:
- rare earth includes one or more of La/Ce/Sc; Ni: 0.001-0.1%; Zn: 0.005-0.1%; Ga: 0.01-0.03%; the total amount of other impurities should be Less than or equal to 0.2%, the balance is Al.
- the weight percent of each component in the die-casting aluminum-silicon alloy is:
- rare earth includes one or more of La/Ce/Sc; Ni: 0.001-0.1%; Zn: 0.005-0.1%; Ga: 0.01-0.03%; the total amount of other impurities should be Less than or equal to 0.2%, the balance is Al.
- the weight percent of each component in the die-casting aluminum-silicon alloy is:
- the rare earth includes at least one of La/Ce/Sc; Ni: 0.001-0.1%; Zn: 0.005-0.1%; Ga: 0.01-0.03%; the total amount of other impurities It should be less than or equal to 0.2%, and the balance is Al.
- the weight percent of each component in the die-casting aluminum-silicon alloy is:
- rare earth includes one or more of La/Ce/Sc; Ni: 0.001-0.1%; Zn: 0.005-0.1%; Ga: 0.01-0.03%; the total amount of other impurities should be Less than or equal to 0.2%, the balance is Al.
- the weight percent of each component in the die-casting aluminum-silicon alloy is:
- rare earth includes one or more of La/Ce/Sc; Ni: 0.001-0.1%; Zn: 0.005-0.1%; Ga: 0.01-0.03%; the total amount of other impurities should be Less than or equal to 0.2%, the balance is Al.
- the tensile strength of the die-casting aluminum-silicon alloy is greater than or equal to 270Mpa, the yield strength is greater than or equal to 130Mpa, and the elongation is greater than or equal to 11%.
- an embodiment of the present invention provides a process method for preparing the die-casting aluminum-silicon alloy, the method comprising:
- it also includes die-casting the die-casting aluminum-silicon alloy, the die-casting temperature of the die-casting aluminum-silicon alloy is 680-720°C, the die-casting speed is 2.5-5m/s, the holding time is 2-10s, and then Die castings in a non-heat treated state are obtained.
- it also includes stirring the aluminum alloy liquid evenly after each raw material is completely melted, and performing sampling analysis after standing still, and adjusting the content of the required elements to within the required composition range.
- the refining agent used does not contain Na ions.
- the invention provides a non-heat-treated high-toughness die-casting aluminum-silicon alloy and a preparation method thereof.
- the aluminum alloy prepared by the present invention breaks the traditional die-casting aluminum alloy which requires T7 heat treatment to meet the requirements of automobile body structural parts, and can be produced with waste aluminum, reducing carbon emissions in the production process, and does not require heat treatment to achieve elongation Reach 11-16%.
- Figure 1 shows the metallographic diagram of the microstructure of the die-casting aluminum alloy obtained in Example 2 of the present invention, wherein Figure (a) is a metallographic diagram of the microstructure of 100X; Figure (b) is a metallographic diagram of the microstructure of 500X;
- Fig. 2 shows the fluidity test mold of the die-casting aluminum alloy that embodiment 2 obtains
- Fig. 3 shows the tensile stress-strain curves of the die-casting aluminum alloys obtained in Example 2, Comparative Example 1 and Comparative Example 2
- the disclosure provides a non-heat-treated high-toughness die-casting aluminum-silicon alloy and a preparation method thereof. Embodiments of the present disclosure will be described below with reference to the accompanying drawings.
- the percentage by weight of each component of a low-carbon emission renewable non-heat-treated high-toughness die-casting aluminum-silicon alloy in this embodiment is: Mg: 0.2%; Si: 6.5%; Fe: 0.15%; Cu: 0.1%; Mn: 0.5%; Ti: 0.03%; Sr: 0.025%; La, Ce total: 0.05%; Ni: 0.005%; Zn: 0.006%; Ga: 0.015%; .
- Furnace preparation clean the bottom of the furnace and start to bake until the furnace wall turns red; paint all the operating tools with graphite powder and then dry and preheat;
- Furnace melting first put the metal Al ingot into the furnace for melting, the melting temperature is controlled at 760-790°C, after the aluminum ingot is completely melted, the temperature is raised at 760-780°C, and then industrial silicon and metal Fe are added , Al-Mn master alloy or metal Mn, metal Cu or Al-Cu master alloy, metal Ni, metal Zn and metal Ga for smelting;
- Refining and slag removal Control the temperature of the aluminum alloy melt at 740-760°C for uniform stirring and add a special refining agent for aluminum alloys to perform a powder spraying refining and a second powder spraying refining, and the interval between the two refining is controlled at 50 -60min, remove the slag after each refining to remove the flux and scum on the liquid surface;
- Casting or die-casting After the component analysis in front of the furnace is qualified, it is cast at the casting temperature into a finished ingot, or high-pressure casting is performed under the die-casting process to obtain a non-heat-treated die-casting.
- the percentage by weight of each component of a low-carbon emission renewable non-heat-treated high-toughness die-casting aluminum-silicon alloy in this embodiment is: Mg: 0.3%; Si: 6.9%; Fe: 0.2%; Cu: 0.2%; Mn: 0.6%; Ti: 0.07%; Sr: 0.02%; La: 0.1%; Ni: 0.003%; Zn: 0.07%;
- Furnace preparation clean the bottom of the furnace and start to bake until the furnace wall turns red; paint all the operating tools with graphite powder and then dry and preheat.
- Furnace melting first put metal Al ingots or waste aluminum into the furnace for melting, the melting temperature is controlled at 760-790°C, after the aluminum ingots or waste aluminum are completely melted, the temperature is raised, and the temperature is controlled at 760-780°C, then Add industrial silicon, metal Fe, Al-Mn master alloy or metal Mn, metal Cu or Al-Cu master alloy, metal Ni, metal Zn and metal Ga for smelting;
- Refining and slag removal Control the temperature of the aluminum alloy melt at 740-760°C for uniform stirring and add a special refining agent for aluminum alloys to perform a powder spraying refining and a second powder spraying refining, and the interval between the two refining is controlled at 50 ⁇ 60min, slag removal after each refining to remove flux and scum on the liquid surface.
- Casting or die-casting After the component analysis in front of the furnace is qualified, it is cast at the casting temperature into a finished ingot, or high-pressure casting is performed under the die-casting process to obtain a non-heat-treated die-casting.
- the percentage by weight of each component of a low-carbon emission renewable non-heat-treated high-toughness die-casting aluminum-silicon alloy in this embodiment is: Mg: 0.35%; Si: 7.5%; Fe: 0.25%; Cu: 0.3%; Mn: 0.7%; Ti: 0.15%; Sr: 0.03%; Ce: 0.08%; Ni: 0.08%; Zn: 0.09%;
- Furnace preparation clean the bottom of the furnace and start to bake until the furnace wall turns red; paint all the operating tools with graphite powder and then dry and preheat.
- Furnace melting first put metal Al ingots or waste aluminum into the furnace for melting, the melting temperature is controlled at 760-790°C, after the aluminum ingots or waste aluminum are completely melted, the temperature is raised, and the temperature is controlled at 760-780°C, then Add industrial silicon, metal Fe, Al-Mn master alloy or metal Mn, metal Cu or Al-Cu master alloy, metal Ni, metal Zn and metal Ga for smelting;
- Refining and slag removal Control the temperature of the aluminum alloy melt at 740-760°C for uniform stirring and add a special refining agent for aluminum alloys to perform a powder spraying refining and a second powder spraying refining, and the interval between the two refining is controlled at 50 ⁇ 60min, slag removal after each refining to remove flux and scum on the liquid surface.
- Casting or die-casting After the component analysis in front of the furnace is qualified, it is cast at the casting temperature into a finished ingot, or high-pressure casting is performed under the die-casting process to obtain a non-heat-treated die-casting.
- the weight percentage of each component of a low-carbon emission renewable non-heat-treated high-toughness die-casting aluminum-silicon alloy in this embodiment is: Mg: 0.25%; Si: 7.8%; Fe: 0.35%; Cu: 0.4%; Mn: 0.8%; Ti: 0.2%; Sr: 0.035%; Sc: 0.15%; Ni: 0.02%; Zn: 0.08%;
- Furnace preparation clean the bottom of the furnace and start to bake until the furnace wall turns red; paint all the operating tools with graphite powder and then dry and preheat.
- Furnace melting first put metal Al ingots or waste aluminum into the furnace for melting, the melting temperature is controlled at 760-790°C, after the aluminum ingots or waste aluminum are completely melted, the temperature is raised, and the temperature is controlled at 760-780°C, then Add industrial silicon, metal Fe, Al-Mn master alloy or metal Mn, metal Cu or Al-Cu master alloy, metal Ni, metal Zn and metal Ga for smelting;
- Refining and slag removal Control the temperature of the aluminum alloy melt at 740-760°C for uniform stirring and add a special refining agent for aluminum alloys to perform a powder spraying refining and a second powder spraying refining, and the interval between the two refining is controlled at 50 ⁇ 60min, slag removal after each refining to remove flux and scum on the liquid surface.
- Casting or die-casting After the component analysis in front of the furnace is qualified, it is cast at the casting temperature into a finished ingot, or high-pressure casting is performed under the die-casting process to obtain a non-heat-treated die-casting.
- the weight percent of each component of a low-carbon emission renewable non-heat-treated high-toughness die-casting aluminum-silicon alloy in this embodiment is: Mg: 0.15%; Si: 8.3%; Fe: 0.45%; Cu: 0.5%; Mn: 0.65%; Ti: 0.15%; Sr: 0.03%; La and Sc total: 0.2%; Ni: 0.08%; Zn: 0.01%; Ga: 0.018%; .
- Furnace preparation clean the bottom of the furnace and start to bake until the furnace wall turns red; paint all the operating tools with graphite powder and then dry and preheat.
- Furnace melting first put metal Al ingots or waste aluminum into the furnace for melting, the melting temperature is controlled at 760-790°C, after the aluminum ingots or waste aluminum are completely melted, the temperature is raised, and the temperature is controlled at 760-780°C, then Add industrial silicon, metal Fe, Al-Mn master alloy or metal Mn, metal Cu or Al-Cu master alloy, metal Ni, metal Zn and metal Ga for smelting;
- Refining and slag removal Control the temperature of the aluminum alloy melt at 740-760°C for uniform stirring and add a special refining agent for aluminum alloys to perform a powder spraying refining and a second powder spraying refining, and the interval between the two refining is controlled at 50 ⁇ 60min, slag removal after each refining to remove flux and scum on the liquid surface.
- Casting or die-casting After the component analysis in front of the furnace is qualified, it is cast at the casting temperature into a finished ingot, or high-pressure casting is performed under the die-casting process to obtain a non-heat-treated die-casting.
- a low-carbon emission renewable non-heat-treated high-toughness die-casting aluminum-silicon alloy of this embodiment is prepared by recycling waste aluminum, and its preparation method includes the following steps:
- Furnace preparation clean the bottom of the furnace and start to bake until the furnace wall turns red; paint all the operating tools with graphite powder and then dry and preheat.
- Furnace smelting Add 40% metal Al ingots and 60% scrap aluminum to the furnace for smelting. Proportional to add. Heating, the temperature is controlled at 760-780°C, and then industrial silicon, metal Fe, Al-Mn master alloy or metal Mn, metal Cu or Al-Cu master alloy, metal Ni, metal Zn and metal Ga are added for smelting;
- Refining and slag removal Control the temperature of the aluminum alloy melt with qualified composition at 740-760°C for uniform stirring, add a special refining agent for aluminum alloys to carry out the first powder spraying refining and the second powder spraying refining, and the interval between two refining It is controlled at 50-60 minutes, and the slag is removed after each refining to remove the flux and scum on the liquid surface.
- the final weight percentage is: Mg: 0.25%; Si: 7.0%; Fe: 0.35%; Cu: 0.25%; Mn: 0.6%; Ti: 0.12%; Sr: 0.028%; La, Ce And the total amount of Sc: 0.2%; Ni: 0.005%; Zn: 0.06%; Ga: 0.02%; the remaining impurities are less than or equal to 0.2%, and the balance is aluminum.
- the ingot is cast at the casting temperature, or the high-pressure casting is carried out under the die-casting process to obtain the die-casting parts in the non-heat treatment state.
- a low-carbon emission renewable non-heat-treated high-toughness die-casting aluminum-silicon alloy of this embodiment is prepared by recycling waste aluminum, and its preparation method includes the following steps:
- Furnace preparation clean the bottom of the furnace and start to bake until the furnace wall turns red; paint all the operating tools with graphite powder and then dry and preheat.
- Furnace smelting Add 100% waste aluminum into the furnace for smelting, the melting temperature is controlled at 760-790°C, and sampling and analysis are carried out after all melting, and then other elements are added according to their respective proportions. Heating, the temperature is controlled at 760-780°C, and then industrial silicon, metal Fe, Al-Mn master alloy or metal Mn, metal Cu or Al-Cu master alloy, metal Ni, metal Zn and metal Ga are added for smelting;
- Refining and slag removal Control the temperature of the aluminum alloy melt with qualified composition at 740-760°C for uniform stirring, add a special refining agent for aluminum alloys to carry out the first powder spraying refining and the second powder spraying refining, and the interval between two refining It is controlled at 50-60 minutes, and the slag is removed after each refining to remove the flux and scum on the liquid surface.
- the final weight percentage is: Mg: 0.3%; Si: 7.7%; Fe: 0.15%; Cu: 0.3%; Mn: 0.7%; Ti: 0.15%; Sr: 0.035%; Ce: 0.08 %; Ni: 0.1%; Zn: 0.1%; Ga: 0.03%; the remaining impurities are less than or equal to 0.2%, and the balance is aluminum.
- the ingot is cast at the casting temperature, or the high-pressure casting is carried out under the die-casting process to obtain the die-casting parts in the non-heat treatment state.
- This comparative example is adjusted on the basis of the composition of Example 2. Compared with Example 2, Sr element is added less, and La element is not added.
- the weight percentage of each component is: Si: 6.9%; Fe: 0.2%; Cu: 0.2%; Mn: 0.6%; Mg: 0.3%; Ti: 0.07%; Sr: 0.008%; Ni: 0.003%; Zn: 0.07%; Ga: 0.02%; The amount is aluminum.
- a kind of preparation method of die-casting aluminum alloy of this comparative example comprises the following steps:
- Furnace preparation clean the bottom of the furnace and start to bake until the furnace wall turns red; paint all the operating tools with graphite powder and then dry and preheat.
- Furnace melting first put the metal Al ingot into the furnace for smelting, the melting temperature is controlled at 670-690°C, after the aluminum ingot is completely melted, the temperature is raised at 760-780°C, and then industrial Si and metal Fe are added , metal Cu, Al-Mn master alloy or metal Mn for smelting.
- Refining and slag removal Control the temperature of the aluminum alloy melt with qualified composition at 740-760°C for uniform stirring, add a special refining agent for aluminum alloys to carry out the first powder spraying refining and the second powder spraying refining, and the interval between two refining It is controlled at 50-60 minutes, and the slag is removed after each refining to remove the flux and scum on the liquid surface.
- Casting or die-casting After the component analysis in front of the furnace is qualified, it is cast at the casting temperature into a finished ingot, or high-pressure casting is performed under the die-casting process to obtain a non-heat-treated die-casting.
- This comparative example is adjusted on the basis of the composition of Example 2. Compared with Example 2, more Sr elements are added, and La elements are not added.
- the weight percentages of each component are: Si: 6.9%; Fe: 0.2%; Cu Mn: 0.2%; Mn: 0.6%; Mg: 0.3%; Ti: 0.07%; Sr: 0.05%; Ni: 0.003%; Zn: 0.07%; Ga: 0.02%; for aluminum.
- the preparation method of this comparative example is the same as that of comparative example 1.
- This comparative example is an adjustment based on the composition of Example 6. Compared with Example 6, this example does not add La, Ce, Sc, Zn, Ni and Ga elements, and the weight percentage of each component is: Si: 7.0%; Fe: 0.35%; Cu: 0.25%; Mn: 0.6%; Mg: 0.25%; Ti: 0.12%;
- the preparation method of this comparative example is the same as that of comparative example 1.
- This comparative example is an adjustment based on the composition of Example 6.
- this example does not add La, Ce, and Sc elements, and the weight percentages of each component are: Si: 7.0%; Fe Cu: 0.25%; Mn: 0.6%; Mg: 0.25%; Ti: 0.12%; Sr: 0.028%; Ni: 0.06%; Zn: 0.005%; Ga: 0.02%; 0.2%, the balance is aluminum.
- the preparation method of this comparative example is the same as that of comparative example 1.
- This comparative example is adjusted on the basis of the composition of Example 6.
- this example has added high-content La, Ce, and Sc elements, and the weight percentage of each component is: Si: 7.0% ; Fe: 0.35%; Cu: 0.25%; Mn: 0.6%; Mg: 0.25%; Ti: 0.12%; Sr: 0.028%; La: 0.2; 0.005%; Ga: 0.02%; the remaining impurities are less than or equal to 0.2%, and the balance is aluminum.
- the preparation method of this comparative example is the same as that of comparative example 1.
- This comparative example is adjusted on the basis of the composition of Example 6.
- this example adds a high content of La element, and the weight percentage of each component is: Si: 7.0%; Fe: 0.35% ; Cu: 0.25%; Mn: 0.6%; Mg: 0.25%; Ti: 0.12%; Sr: 0.028%; La: 1.0; Ni: 0.06%; Zn: 0.005%; Ga: 0.02%; Equal to 0.2%, the balance being aluminum.
- the preparation method of this comparative example is the same as that of comparative example 1.
- This comparative example is adjusted on the basis of the composition of Example 6.
- this example adds a high content of Sc element, and the weight percentage of each component is: Si: 7.0%; Fe: 0.35% ; Cu: 0.25%; Mn: 0.6%; Mg: 0.25%; Ti: 0.12%; Sr: 0.028%; Sc: 0.5; Ni: 0.06%; Zn: 0.005%; Ga: 0.02%; Equal to 0.2%, the balance being aluminum.
- the preparation method of this comparative example is the same as that of comparative example 1.
- This comparative example is adjusted on the basis of the composition of Example 6.
- this example adds a high content of Sc element, and the weight percentage of each component is: Si: 7.0%; Fe: 0.35% ;Cu:0.25%;Mn:0.6%;Mg:0.25%;Ti:0.12%;Sr:0.028%;La:0.01;Sc:0.01;Ni:0.06%;Zn:0.005%;Ga:0.02%;Other
- the impurity balance is less than or equal to 0.2%, and the balance is aluminum.
- the preparation method of this comparative example is the same as that of comparative example 1.
- Table 1 is the aluminum alloy composition of Examples 1-7 and Comparative Examples 1-8.
- Table 2 shows the room temperature tensile mechanical properties and flow properties of aluminum alloy casting body samples obtained in Examples 1-7 and Comparative Examples 1-8 in the F state and at 180° C. for 30 minutes.
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Abstract
Description
Claims (10)
- 一种非热处理高韧性压铸铝硅合金,其特征在于,所述压铸铝硅合金中各组分的重量百分比为:Si:6.3-8.3%;Fe:0.07-0.45%;Cu:0.05-0.5%;Mn:0.5-0.8%;Mg:0.15-0.35%;Ti:0.01-0.2%;Sr:0.015-0.035%;稀土总量:0.04%-0.2%,所述稀土包括La/Ce/Sc中的至少一种;Ni:0.001-0.1%;Zn:0.005-0.1%;Ga:0.01-0.03%;其他杂质总量应小于或等于0.2%,余量为Al。
- 根据权利要求1所述的压铸铝硅合金,其特征在于,所述压铸铝硅合金中各组分的重量百分比为:Si:6.3-7.0%;Fe:0.2-0.4%;Cu:0.35-0.45%;Mn:0.5-0.8%;Mg:0.25-0.35%;Ti:0.1-0.2%;Sr:0.015-0.035%;稀土总量:0.04%-0.2%,所述稀土包括La/Ce/Sc中的至少一种;Ni:0.001-0.1%;Zn:0.005-0.1%;Ga:0.01-0.03%;其他杂质总量应小于或等于0.2%,余量为Al。
- 根据权利要求1所述的一种非热处理高韧性压铸铝硅合金,其特征在于,所述压铸铝硅合金中各组分的重量百分比为:Si:6.4-7.1%;Fe:0.10-0.25%;Cu:0.05-0.28%;Mn:0.5-0.8%;Mg:0.25-0.35%;Ti:0.03-0.16%;Sr:0.025-0.035%;稀土总量:0.04%-0.15%,所述稀土包括La/Ce/Sc中的的至少一种;Ni:0.001-0.1%;Zn:0.005-0.1%;Ga:0.01-0.03%;其他杂质总量应小于或等于0.2%,余量为Al。
- 根据权利要求1所述的压铸铝硅合金,其特征在于,所述压铸铝硅合金中各组分的重量百分比为:Si:7.0-7.7%;Fe:0.15-0.3%;Cu:0.2-0.35%;Mn:0.6-0.8%;Mg:0.2-0.3%;Ti:0.05-0.2%;Sr:0.015-0.035%;稀土总量:0.04%-0.2%,所述稀土包括La/Ce/Sc中的至少一种;Ni:0.001-0.1%;Zn:0.005-0.1%;Ga:0.01-0.03%;其他杂质总量应小于或等于0.2%,余量为Al。
- 根据权利要求1所述的压铸铝硅合金,其特征在于,所述压铸铝硅合金中各组分的重量百分比为:Si:7.7-8.3%;Fe:0.07-0.2%;Cu:0.05-0.2%;Mn:0.6-0.8%; Mg:0.15-0.3%;Ti:0.01-0.15%;Sr:0.015-0.035%;稀土总量:0.04%-0.2%,所述稀土包括La/Ce/Sc中的至少一种;Ni:0.001-0.1%;Zn:0.005-0.1%;Ga:0.01-0.03%;其他杂质总量应小于或等于0.2%,余量为Al。
- 根据权利要求1-5中任一项所述的压铸铝硅合金,其特征在于,所述压铸铝硅合金的抗拉强度大于或等于270Mpa,屈服强度大于或等于130Mpa,延伸率大于或等于11%。
- 一种制备权利要求1-6中任一项所述的压铸铝硅合金工艺方法,其特征在于,包括:先将制备所述压铸铝硅合金的不易烧损的各原料加热熔化,得到铝合金液;然后将所述铝合金液进行除渣及精炼处理后再添加易烧损的各原料,成分达标后进行浇铸处理,得到所述压铸铝硅合金。
- 根据权利要求7所述的方法,其特征在于,还包括将所述压铸铝硅合金进行压铸成型,所述压铸铝硅合金的压铸成型温度为680-720℃,压铸速度为2.5-5m/s,保温时间为2-10s,然后得到非热处理状态的压铸件。
- 根据权利要求7所述的方法,其特征在于,还包括在各原料完全熔化后,对所述铝合金液搅拌均匀,静置后进行取样分析,对所需元素含量调整到成分要求范围内。
- 根据权利要求7所述的方法,其特征在于,还包括所用精炼剂不含Na离子。
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CN117026026A (zh) * | 2023-08-28 | 2023-11-10 | 南通众福新材料科技有限公司 | 一种基于再生铝的高延伸率铝合金材料及其制备方法 |
CN118048544A (zh) * | 2024-01-31 | 2024-05-17 | 广州致远新材料科技有限公司 | 免热处理压铸铝硅合金材料的制备方法及压铸方法 |
CN118241085A (zh) * | 2024-05-24 | 2024-06-25 | 成都新格有色金属有限公司 | 一种免热处理铝合金及其制备方法 |
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CN115287507A (zh) * | 2022-08-02 | 2022-11-04 | 乔治费歇尔金属成型科技(苏州)有限公司 | 一种免热处理的铝合金、其制备方法及结构件与应用 |
CN116287891B (zh) * | 2023-05-25 | 2023-08-08 | 小米汽车科技有限公司 | 一种免热处理压铸铝合金及其制备方法和应用 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6364970B1 (en) | 1994-06-16 | 2002-04-02 | Aluminium Rheinfelden Gmbh | Diecasting alloy |
CN101629258A (zh) * | 2008-07-15 | 2010-01-20 | 太仓沪北特种铝材有限公司 | 一种汽车零部件用含re的优良铸铝合金材料及制造方法 |
WO2016161908A1 (zh) * | 2015-04-10 | 2016-10-13 | 上海交通大学 | 非热处理自强化铝硅合金及其制备工艺 |
CN106636787A (zh) | 2016-11-14 | 2017-05-10 | 苏州慧驰轻合金精密成型科技有限公司 | 一种高韧性压铸铝合金及其制备方法 |
CN108754256A (zh) | 2018-07-16 | 2018-11-06 | 上海交通大学 | 非热处理强化高强高韧压铸铝镁硅合金及其制备方法 |
CN109881056A (zh) | 2019-03-25 | 2019-06-14 | 上海永茂泰汽车零部件有限公司 | 一种高强韧压铸铝合金及其制备方法 |
CN113755722A (zh) * | 2021-09-22 | 2021-12-07 | 隆达铝业(顺平)有限公司 | 一种高强韧免热处理铝合金材料及制备方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104561691B (zh) * | 2015-01-26 | 2017-02-01 | 上海交通大学 | 高塑性铸造铝合金及其压力铸造制备方法 |
CN108517446A (zh) * | 2018-05-22 | 2018-09-11 | 华中科技大学 | 一种用于真空压铸的高韧性铝合金及其产品的制备方法 |
CN110983120A (zh) * | 2019-11-25 | 2020-04-10 | 安徽科技学院 | 一种300MPa级高强塑非热处理自强化压铸铝合金及制造方法 |
-
2021
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-
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- 2022-03-15 EP EP22902645.5A patent/EP4446448A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6364970B1 (en) | 1994-06-16 | 2002-04-02 | Aluminium Rheinfelden Gmbh | Diecasting alloy |
CN101629258A (zh) * | 2008-07-15 | 2010-01-20 | 太仓沪北特种铝材有限公司 | 一种汽车零部件用含re的优良铸铝合金材料及制造方法 |
WO2016161908A1 (zh) * | 2015-04-10 | 2016-10-13 | 上海交通大学 | 非热处理自强化铝硅合金及其制备工艺 |
CN106636787A (zh) | 2016-11-14 | 2017-05-10 | 苏州慧驰轻合金精密成型科技有限公司 | 一种高韧性压铸铝合金及其制备方法 |
CN108754256A (zh) | 2018-07-16 | 2018-11-06 | 上海交通大学 | 非热处理强化高强高韧压铸铝镁硅合金及其制备方法 |
CN109881056A (zh) | 2019-03-25 | 2019-06-14 | 上海永茂泰汽车零部件有限公司 | 一种高强韧压铸铝合金及其制备方法 |
CN113755722A (zh) * | 2021-09-22 | 2021-12-07 | 隆达铝业(顺平)有限公司 | 一种高强韧免热处理铝合金材料及制备方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117026026A (zh) * | 2023-08-28 | 2023-11-10 | 南通众福新材料科技有限公司 | 一种基于再生铝的高延伸率铝合金材料及其制备方法 |
CN117026026B (zh) * | 2023-08-28 | 2024-02-23 | 南通众福新材料科技有限公司 | 一种基于再生铝的高延伸率铝合金材料及其制备方法 |
CN118048544A (zh) * | 2024-01-31 | 2024-05-17 | 广州致远新材料科技有限公司 | 免热处理压铸铝硅合金材料的制备方法及压铸方法 |
CN118241085A (zh) * | 2024-05-24 | 2024-06-25 | 成都新格有色金属有限公司 | 一种免热处理铝合金及其制备方法 |
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