CN116676515A - Al-Mn-Zn-Ce die-casting anode alloy and preparation method and application thereof - Google Patents
Al-Mn-Zn-Ce die-casting anode alloy and preparation method and application thereof Download PDFInfo
- Publication number
- CN116676515A CN116676515A CN202310648575.3A CN202310648575A CN116676515A CN 116676515 A CN116676515 A CN 116676515A CN 202310648575 A CN202310648575 A CN 202310648575A CN 116676515 A CN116676515 A CN 116676515A
- Authority
- CN
- China
- Prior art keywords
- die
- alloy
- casting
- anode
- equal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 240
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 239
- 238000004512 die casting Methods 0.000 title claims abstract description 111
- 229910003120 Zn-Ce Inorganic materials 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 claims abstract description 22
- 239000012535 impurity Substances 0.000 claims abstract description 19
- 238000007670 refining Methods 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 22
- 230000032683 aging Effects 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 21
- 229910052710 silicon Inorganic materials 0.000 claims description 20
- 239000010703 silicon Substances 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 15
- 238000007872 degassing Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 12
- 238000005275 alloying Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 239000006104 solid solution Substances 0.000 claims description 8
- 229910018131 Al-Mn Inorganic materials 0.000 claims description 7
- 229910018461 Al—Mn Inorganic materials 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 5
- 229910018182 Al—Cu Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 15
- 238000005336 cracking Methods 0.000 abstract description 15
- 230000008859 change Effects 0.000 abstract description 13
- 238000011049 filling Methods 0.000 abstract description 7
- 238000005266 casting Methods 0.000 abstract description 3
- 241001268993 Heterochrosis Species 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 37
- 239000000047 product Substances 0.000 description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 15
- 230000000694 effects Effects 0.000 description 15
- 238000007711 solidification Methods 0.000 description 12
- 230000008023 solidification Effects 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000012071 phase Substances 0.000 description 7
- 238000003723 Smelting Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000005728 strengthening Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000011651 chromium Substances 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 3
- 230000035772 mutation Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910018137 Al-Zn Inorganic materials 0.000 description 2
- 229910018573 Al—Zn Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910016952 AlZr Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910019018 Mg 2 Si Inorganic materials 0.000 description 1
- 229910017706 MgZn Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 208000026438 poor feeding Diseases 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- 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
-
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
-
- 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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
- C22F1/047—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 magnesium 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
- C22F1/053—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 zinc as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Continuous Casting (AREA)
Abstract
The invention relates to the technical field of die casting alloy, in particular to an Al-Mn-Zn-Ce die casting anode alloy, and a preparation method and application thereof. The Al-Mn-Zn-Ce die-cast anode alloy comprises the following components in percentage by weight: mn of 0.85-1.85%, zn of 2-6%, ce of 0.15-1.2%, si of less than or equal to 0.15%, cu of less than or equal to 0.85%, mg of 0.15-2.5%, fe of less than or equal to 0.25%, ti of less than or equal to 0.1%, sr of less than or equal to 0.05%, and the balance of Al and impurities, wherein the content of the impurities is less than or equal to 0.2%. The Al-Mn-Zn-Ce die-casting anode alloy has good fluidity and high filling property, reduces the hot cracking tendency of the alloy with high Zn content in the casting process, can meet the die-casting process forming requirement of complex thin-wall components with wall thickness change, has the characteristics of high strength and capability of meeting the requirement of colorful high-brightness anodes, and solves the technical problems that the existing die-casting anode aluminum alloy has weak strength, is easy to produce anode heterochrosis, has low yield and is difficult to meet the appearance requirement of the colorful high-brightness anodes.
Description
Technical Field
The invention relates to the technical field of die casting alloy, in particular to an Al-Mn-Zn-Ce die casting anode alloy, and a preparation method and application thereof.
Background
The aluminum alloy material has the characteristics of low density, high strength, surface treatment of appearance through an anode process, various colors, high brightness and excellent protection effect after the anodic oxidation treatment, and has wide application in the fields of 3C electronic consumer goods, automobile interior trim parts, craft exhibits and the like. The current common anode aluminum alloy is a deformed aluminum alloy system, has high strength and good anode effect, but has the problems of long production flow, high post-processing cost of CNC and the like, and simultaneously has a lot of waste of raw materials and environmental protection. The conventional die-casting aluminum alloy is of an Al-Si system, has good fluidity and high strength, but has higher Si content (more than 6%), coarse primary silicon phase is generated in the solidification process, the problem of anode ash falling exists, and the die-casting aluminum alloy is only suitable for the appearance of a matt black anode with lower color requirements and cannot meet the requirements of the appearance of a colorful anode.
The Al-Mn alloy has low Mn content (about 2%) and good fluidity. The patent with application number 201710666119.6 discloses a high-strength anodic oxidation die-casting aluminum alloy and a preparation method thereof, wherein Zr, mo and Cr have higher element content to form AlZr, alCr, alMo intermetallic compounds, and the intermetallic compounds remain in an oxide film in the anodic oxidation process to cause abnormal color and dark brightness of an anode, so that the anode requirement with higher requirements on appearance is difficult to meet.
Disclosure of Invention
Aiming at the problems of the background technology, the invention aims to provide an Al-Mn-Zn-Ce die-casting anode alloy which has good fluidity and high filling property, reduces the hot cracking tendency of the alloy with high Zn content in the casting process, can meet the die-casting process molding requirement of complex thin-wall components with wall thickness change, has the characteristics of high strength and capability of meeting the requirement of colorful high-brightness anode, and solves the technical problems that the existing die-casting anode aluminum alloy has weak strength, is easy to generate anode heterochrosis and has low yield and is difficult to meet the appearance requirement of the colorful high-brightness anode.
The invention further aims to provide a preparation method for preparing the Al-Mn-Zn-Ce die-casting anode alloy, which can ensure the homogenization and purification effects of the alloy, and alloy melt has good fluidity and high filling property, and the prepared Al-Mn-Zn-Ce die-casting anode alloy can meet the die-casting process molding requirements of complex thin-wall components with wall thickness variation, and has the characteristics of high strength and capability of meeting the requirements of colorful high-brightness anodes.
It is still another object of the present invention to provide a use of the above al—mn—zn—ce die-cast anode alloy, wherein when a thin-walled member having a wall thickness variation (wall thickness is complicated) is manufactured, no thermal cracking occurs at the abrupt wall thickness change, and the yield of the product is effectively improved.
To achieve the purpose, the invention adopts the following technical scheme:
the Al-Mn-Zn-Ce die-cast anode alloy comprises the following components in percentage by weight: mn of 0.85-1.85%, zn of 2-6%, ce of 0.15-1.2%, si of less than or equal to 0.15%, cu of less than or equal to 0.85%, mg of 0.15-2.5%, fe of less than or equal to 0.25%, ti of less than or equal to 0.1%, sr of less than or equal to 0.05%, and the balance of Al and impurities, wherein the content of the impurities is less than or equal to 0.2%.
Further described, the Al-Mn-Zn-Ce die-cast anode alloy comprises the following components in percentage by weight: mn of 1.2-1.5%, zn of 3.5-5%, ce of 0.45-0.75%, si of less than or equal to 0.05%, cu of 0.1-0.2%, mg of 1-1.5%, fe of less than or equal to 0.1%, ti of less than or equal to 0.02%, sr of less than or equal to 0.02%, and the balance of Al and impurities, wherein the content of the impurities is less than or equal to 0.2%.
Further described, the die-cast state yield strength of the Al-Mn-Zn-Ce die-cast anode alloy is more than or equal to 160MPa;
after solution heat treatment and aging treatment, the yield strength of the Al-Mn-Zn-Ce die-casting anode alloy in the T6 state is more than or equal to 340MPa.
A preparation method of an Al-Mn-Zn-Ce die-cast anode alloy is used for preparing the Al-Mn-Zn-Ce die-cast anode alloy and comprises the following steps:
step A, preparing raw materials: preparing pure Al ingot, pure Mg ingot, pure Zn ingot, al-Cu intermediate alloy, al-Mn intermediate alloy, al-Ce intermediate alloy, al-Sr intermediate alloy, al-Ti-B intermediate alloy and elemental silicon as raw materials according to the element component proportion of the Al-Mn-Zn-Ce die-casting anode alloy;
and B, alloying: melting a pure Al ingot, adding simple substance silicon, a pure Zn ingot, an Al-Cu intermediate alloy, an Al-Mn intermediate alloy, an Al-Ce intermediate alloy, an Al-Sr intermediate alloy and an Al-Ti-B intermediate alloy, fully melting the raw materials, pressing into a pure Mg ingot to fully melt the pure Mg ingot, and controlling the temperature to be 710-720 ℃ in the alloying process;
step C, degassing and filtering: adding a refining agent and a refining agent, stirring for degassing, standing, and slagging off and filtering;
step D, die casting and forming: and carrying out die casting molding on the alloy melt to obtain the Al-Mn-Zn-Ce die casting anode alloy.
Further, after the die-casting and forming in the step D, solution heat treatment and aging treatment are further carried out on the Al-Mn-Zn-Ce die-cast anode alloy, or aging treatment is carried out on the Al-Mn-Zn-Ce die-cast anode alloy.
Further describing, the solution heat treatment is to heat the die-cast Al-Mn-Zn-Ce anode alloy to 450-520 ℃, preserve heat for 0.5-1 h, and then quickly cool for solid solution;
the aging treatment is to heat the Al-Mn-Zn-Ce die-casting anode alloy to 120-150 ℃ and keep the temperature for 6-10 h.
In the step B, melting pure Al ingot, preserving heat for 2-3 h at 710-720 ℃, then adding simple substance silicon, pure Zn ingot, al-Cu intermediate alloy, al-Mn intermediate alloy, al-Ce intermediate alloy, al-Sr intermediate alloy and Al-Ti-B intermediate alloy, preserving heat for 30-40 min at 710-720 ℃ until all the raw materials are melted, pressing into pure Mg ingot, preserving heat for 20-30 min at 710-720 ℃ until the pure Mg ingot is completely melted, and obtaining alloy melt;
in the step C, a refining agent and a refining agent are added, stirred and deaerated for 15-20 min, and the mixture is kept stand for 20-30 min and then is subjected to slag skimming and filtration.
Further, in the step D, the temperature of the alloy melt in the die casting molding is kept between 710 and 730 ℃, the temperature of the die is 210 to 230 ℃, the injection speed is 2.5 to 3m/s, and the injection pressure is 100 to 120bar.
Still further, in the step C, the addition amount of the refining agent is 0.1 to 0.3% of the total mass of the alloy melt;
the addition amount of the refiner is 0.02-0.05% of the total mass of the alloy melt, and the refiner is an Al-Sr refiner and an Al-Ti-B refiner.
The use of said Al-Mn-Zn-Ce die cast anode alloy for manufacturing thin-walled components with varying wall thickness.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the Al-Mn-Zn-Ce die-casting anode alloy, mg element, ce element and Mn element are added into the high-strength Al-Zn alloy, so that the hot cracking tendency of the alloy with high Zn content is effectively reduced while the high strength performance is met, an anode die-casting aluminum system with high filling property is developed, meanwhile, the die-casting process forming requirement of a complex thin-wall member with wall thickness change can be met due to good fluidity of the alloy, hot cracking cracks are not generated at the wall thickness mutation part in the prepared thin-wall member product with wall thickness change, and the yield of the product is effectively improved. In order to further improve the strength, alloying elements such as Cu are added, the content of elements such as Si, fe, sr and the like is synchronously controlled, the problem of anode color difference is solved, and the anode effect is improved, so that the alloy can meet the appearance requirement of a colorful high-brightness anode, and the formed oxide film has uniform color and no color difference and has wide market application prospect. The die-casting anode alloy of Al-Mn-Zn-Ce has the yield strength of more than or equal to 160MPa in the die-casting state, has the yield strength of more than or equal to 340MPa in the T6 state after solution heat treatment and aging treatment, and solves the technical problems that the existing die-casting anode aluminum alloy has weak strength, is easy to produce anode heterochromatic and has low yield and is difficult to meet the appearance requirement of a colorful high-brightness anode.
Drawings
Fig. 1 is a comparative view of the appearance of die-cast anode holders produced in example 1 of the present invention and comparative example 1 (the left member in the figure is comparative example 1, and the right member is example 1).
Fig. 2 is an external view of a die-cast anode holder manufactured in comparative example 1 of the present invention.
Fig. 3 is an external view of a die-cast anode holder produced in example 1 of the present invention.
Fig. 4 is a comparative view of the appearance of die-cast anode ear support produced in example 1 of the present invention and comparative example 1 (the upper member in the figure is comparative example 1, and the lower member is example 1).
Fig. 5 is an external view of a die-cast anode ear support manufactured in comparative example 1 of the present invention.
Fig. 6 is an external view of a die-cast anode ear support manufactured in example 1 of the present invention.
FIG. 7 is a metallographic structure diagram of comparative example 1 of the present invention.
FIG. 8 is a metallographic structure of example 1 of the present invention.
Detailed Description
The Al-Mn-Zn-Ce die-cast anode alloy comprises the following components in percentage by weight: mn of 0.85-1.85%, zn of 2-6%, ce of 0.15-1.2%, si of less than or equal to 0.15%, cu of less than or equal to 0.85%, mg of 0.15-2.5%, fe of less than or equal to 0.25%, ti of less than or equal to 0.1%, sr of less than or equal to 0.05%, and the balance of Al and impurities, wherein the content of the impurities is less than or equal to 0.2%.
The sum of the weight percentages of the elements in the Al-Mn-Zn-Ce die-cast anode alloy is 100 percent.
In the invention, zn element is combined with Mg element to form MgZn 2 The compound can play a role of precipitation strengthening and is the Al-Mn-Zn-Ce die-casting anodeThe main strengthening mechanism of the alloy plays a main role in the strength of the alloy, but the inventor researches find that when the Zn content is increased, for example, when the Zn content is more than or equal to 2%, the hot cracking tendency of the alloy is obvious, so that solidification cracks are easy to generate when a thin-wall component with wall thickness variation (wall thickness is complex) is manufactured, in addition, the viscosity of the alloy is increased due to the increase of the Mg content, and the hot cracking tendency of the alloy is increased. In order to control the hot cracking tendency of the alloy and enable the Al-Mn-Zn-Ce die-casting anode alloy to meet the requirement of die casting a complex thin-wall component with wall thickness change, the invention reduces the content of Zn in a solidification liquid phase by adding Ce element, combining Al, ce and Zn to form an AlCEZn compound, effectively reduces the temperature range of alloy solidification, reduces the hot cracking tendency, simultaneously, the Ce element and Al crystallization reaction release a large amount of latent heat, is beneficial to improving the fluidity of a solidification front section, improving the feeding capability of an alloy melt and reducing the hot cracking tendency, but if the content of Ce is too high, a coarser AlCE compound is formed, the flow of the alloy melt is hindered, and the anode oxidation effect is influenced.
Further, the Mn element in the invention mainly plays a role in adjusting the fluidity of the alloy, the content of the Mn element in the alloy is near the eutectic point of an Al-Mn system, so that the alloy has better fluidity, but if the content of the Mn is too high, an AlMn compound is precipitated to form, and the anodic oxidation effect is affected, so that the Mn content of the alloy is below 1.85 percent, at the moment, most of the Mn element exists in an aluminum matrix in a solid solution form in the quick cooling process of die casting, only a few Mn precipitates on a grain boundary, the influence on anodic oxidation is weak, and meanwhile, the alloy has excellent formability due to better fluidity of the alloy. If the Mn content is less than 0.85%, the fluidity of the alloy is reduced and the die casting yield is low because the Mn content is far from the eutectic point of the Al-Mn system at this time.
Further description, the present inventionThe brightness of the anode film can be improved in the anodic oxidation process by adding Cu element, and the method is suitable for scenes with higher anode requirements, in addition, the improvement of the alloy strength of Cu is greatly facilitated, but the anode film is reddish due to the excessively high Cu element content, so that the Cu content is controlled within 0.85%, and the influence on chromaticity is small. Si element and Mg element to form Mg 2 Si can further increase alloy strength, and when Si content is high, a coarse primary silicon phase in the solidification process can affect the appearance of the anode, and can reduce alloy toughness. The Ti element and the Sr element can play a role in refining the alpha-Al solidification structure, improve the toughness of the alloy, weaken the element segregation problem caused by uneven alloy structure and improve the anode heterochromatic problem. The Fe element is an impurity element in the Al-Mn-Zn-Ce die-casting anode alloy, so that the problem of dark anode color can be caused, the content of Fe is controlled to be within 0.25 percent, the content of other impurities is controlled to be within 0.2 percent, and the other impurities refer to impurities such as zirconium (Zr), chromium (Cr), vanadium (V) and the like.
By adding Mg element, ce element and Mn element into the high-strength Al-Zn alloy, the hot cracking tendency of the alloy with high Zn content is effectively reduced while the high strength performance is met, an anode die-casting aluminum system with high filling property is developed, meanwhile, the die-casting process molding requirement of a complex thin-wall member with wall thickness variation can be met due to good fluidity of the alloy, and the hot cracking crack is not generated at the wall thickness mutation part in the prepared thin-wall member product with wall thickness variation, so that the yield of the product is effectively improved. In order to further improve the strength, alloying elements such as Cu and the like are added, the content of elements such as Si, fe, sr and the like is synchronously controlled, the anode color difference problem is improved, the anode effect is improved, the alloy can meet the appearance requirement of a colorful high-brightness anode, the formed oxide film has uniform color and no different color (the anode effect refers to an aluminum alloy anode oxidation process, is an industry aluminum alloy conventional appearance treatment process and generally comprises degreasing, chemical polishing, cleaning, oxidizing, coloring and hole sealing, and refers to the generation of a transparent and porous oxide film on the surface of the aluminum alloy in an acidic medium environment, and after dyeing, a colorful and high-brightness protective coating can be formed), so that the alloy has wide market application prospect. The die-casting anode alloy of Al-Mn-Zn-Ce has the yield strength of more than or equal to 160MPa in the die-casting state, has the yield strength of more than or equal to 340MPa in the T6 state after solution heat treatment and aging treatment, and solves the technical problems that the existing die-casting anode aluminum alloy has weak strength, is easy to produce anode heterochromatic and has low yield and is difficult to meet the appearance requirement of a colorful high-brightness anode.
Further described, the Al-Mn-Zn-Ce die-cast anode alloy comprises the following components in percentage by weight: mn of 1.2-1.5%, zn of 3.5-5%, ce of 0.45-0.75%, si of less than or equal to 0.05%, cu of 0.1-0.2%, mg of 1-1.5%, fe of less than or equal to 0.1%, ti of less than or equal to 0.02%, sr of less than or equal to 0.02%, and the balance of Al and impurities, wherein the content of the impurities is less than or equal to 0.2%.
The element content of the Al-Mn-Zn-Ce die-casting anode alloy is preferably in the range, the alloy strength is excellent, the fluidity and the high filling property are good, and the die-casting process molding requirement of complex thin-wall components with wall thickness variation can be met.
Further described, the die-cast state yield strength of the Al-Mn-Zn-Ce die-cast anode alloy is more than or equal to 160MPa;
after solution heat treatment and aging treatment, the yield strength of the Al-Mn-Zn-Ce die-casting anode alloy in the T6 state is more than or equal to 340MPa.
The die-casting anode alloy of Al-Mn-Zn-Ce has high yield strength in the die-casting state, and after solution heat treatment and aging treatment, the die-casting anode alloy has high yield strength in the T6 state, and simultaneously has the characteristics of high strength and capability of meeting the requirements of colorful high-brightness anodes.
A preparation method of an Al-Mn-Zn-Ce die-cast anode alloy is used for preparing the Al-Mn-Zn-Ce die-cast anode alloy and comprises the following steps:
step A, preparing raw materials: preparing pure Al ingot, pure Mg ingot, pure Zn ingot, al-Cu intermediate alloy, al-Mn intermediate alloy, al-Ce intermediate alloy, al-Sr intermediate alloy, al-Ti-B intermediate alloy and elemental silicon as raw materials according to the element component proportion of the Al-Mn-Zn-Ce die-casting anode alloy;
and B, alloying: melting a pure Al ingot, adding simple substance silicon, a pure Zn ingot, an Al-Cu intermediate alloy, an Al-Mn intermediate alloy, an Al-Ce intermediate alloy, an Al-Sr intermediate alloy and an Al-Ti-B intermediate alloy, fully melting the raw materials, pressing into a pure Mg ingot to fully melt the pure Mg ingot, and controlling the temperature to be 710-720 ℃ in the alloying process;
step C, degassing and filtering: adding a refining agent and a refining agent, stirring for degassing, standing, and slagging off and filtering;
step D, die casting and forming: and carrying out die casting molding on the alloy melt to obtain the Al-Mn-Zn-Ce die casting anode alloy.
The preparation method of the Al-Mn-Zn-Ce die-casting anode alloy can ensure the homogenization and purification effects of the alloy, alloy melt has good fluidity and high filling property, and the prepared Al-Mn-Zn-Ce die-casting anode alloy can meet the die-casting process molding requirement of complex thin-wall components with wall thickness variation, and has the characteristics of high strength and capability of meeting the requirement of colorful high-brightness anodes.
Specifically, al element is added in the form of pure Al ingot, mg element is added in the form of pure Mg ingot, zn element is added in the form of pure Zn ingot, cu element is added in the form of Al-Cu intermediate alloy, mn element is added in the form of Al-Mn intermediate alloy, ce element is added in the form of Al-Ce intermediate alloy, sr element is added in the form of Al-Sr intermediate alloy, ti is added in the form of Al-Ti-B intermediate alloy, si is added in the form of elemental silicon, and Fe element has more sources and is introduced by intermediate alloy, but is mainly introduced by pure aluminum ingot.
Preferably, after the die-casting and forming in the step D, solution heat treatment and aging treatment are further carried out on the Al-Mn-Zn-Ce die-cast anode alloy, or aging treatment is carried out on the Al-Mn-Zn-Ce die-cast anode alloy.
The Al-Mn-Zn-Ce die-cast anode alloy obtained by die casting is subjected to a heat treatment process: the solution heat treatment and aging treatment can further improve the problem of low mechanical strength of the as-cast aluminum alloy, the heat treatment process generally comprises two steps of high-temperature solution and low-temperature aging, and under the scene of low strength requirement, the die casting product can be directly subjected to aging treatment.
Further describing, the solution heat treatment is to heat the die-cast Al-Mn-Zn-Ce anode alloy to 450-520 ℃, preserve heat for 0.5-1 h, and then quickly cool for solid solution;
the aging treatment is to heat the Al-Mn-Zn-Ce die-casting anode alloy to 120-150 ℃ and keep the temperature for 6-10 h.
When the solution heat treatment is carried out, the temperature of the die-casting finished product is raised to 450-520 ℃, the temperature is kept for 0.5-1 h, then the die-casting finished product is subjected to quick cooling and solid solution, and then the die-casting finished product is subjected to quick cooling and solid solution in a water cooling or air cooling mode according to the deformation resistance of the product structure and the mechanical requirement of the product. The aging treatment means that the temperature of the product after solid solution is raised to 120-150 ℃ and long-time heat preservation treatment is carried out for 6-10 hours, if the heat preservation temperature is too high or too low, underaging strengthening or overaging strengthening can be caused, so that the strength of the product can not reach a peak value.
In the step B, melting pure Al ingot, preserving heat for 2-3 h at 710-720 ℃, then adding simple substance silicon, pure Zn ingot, al-Cu intermediate alloy, al-Mn intermediate alloy, al-Ce intermediate alloy, al-Sr intermediate alloy and Al-Ti-B intermediate alloy, preserving heat for 30-40 min at 710-720 ℃ until all the raw materials are melted, pressing into pure Mg ingot, preserving heat for 20-30 min at 710-720 ℃ until the pure Mg ingot is completely melted, and obtaining alloy melt;
in the step C, a refining agent and a refining agent are added, stirred and deaerated for 15-20 min, and the mixture is kept stand for 20-30 min and then is subjected to slag skimming and filtration.
By limiting the technological parameters in the preparation process, the homogenization and purification effects of the alloy can be ensured, the alloy is ensured to be fully and uniformly melted, and the impurity removal effect is good.
Preferably, in the step D, the temperature of the alloy melt in the die casting molding is kept between 710 and 730 ℃, the temperature of the die is between 210 and 230 ℃, the injection speed is between 2.5 and 3m/s, and the injection pressure is between 100 and 120bar.
In the step D, a 300T die casting machine is used for die casting, the national standard GB/T13822-2017 is referred to for die casting die design and the dimension design of a stretching rod, the diameter of the stretching rod is phi 6.4mm, and a silicon-free aqueous release agent can be used for releasing after die casting.
Preferably, in the step C, the addition amount of the refining agent is 0.1-0.3% of the total mass of the alloy melt;
the addition amount of the refiner is 0.02-0.05% of the total mass of the alloy melt, and the refiner is an Al-Sr refiner and an Al-Ti-B refiner.
The refining agent is added to achieve the effects of degassing and deslagging, the refining agent is added to achieve the effects of refining manager and improving the tissue compactness of the casting.
The use of said Al-Mn-Zn-Ce die cast anode alloy for manufacturing thin-walled components with varying wall thickness.
According to the Al-Mn-Zn-Ce die-casting anode alloy, the Ce element is added, al, ce and Zn are combined to form an AlCEZn compound, so that the Zn content in a solidification liquid phase is reduced, the temperature range of alloy solidification is effectively reduced, the hot cracking tendency is reduced, meanwhile, the Ce element and Al crystallization reaction release a large amount of latent heat, the fluidity of a solidification front section is improved, the feeding capability of an alloy melt is improved, the hot cracking tendency is reduced, and when a thin-wall component with wall thickness variation (complicated wall thickness) is manufactured, no hot cracking crack is generated at a wall thickness mutation part, and the yield of a product is effectively improved. Specifically, the wall thickness change refers to the change from large to small or from small to large of the wall thickness of the thin-walled member, the abrupt change refers to the absolute value of the wall thickness change when the wall thickness of the thin-walled member is changed/when the wall thickness value of the adjacent larger-wall-thickness region is equal to or more than 1/3, wherein the absolute value of the wall thickness change refers to the absolute value of the difference between the wall thickness value of the larger-wall-thickness region and the wall thickness value of the smaller-wall-thickness region.
The present invention is described more fully below in order to facilitate an understanding of the present invention. This invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The examples are not to be construed as limiting the specific techniques or conditions described in the literature in this field or as per the specifications of the product. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Examples 1 to 3
A preparation method of an Al-Mn-Zn-Ce die-casting anode alloy comprises the following steps:
step A, preparing raw materials: the Al-Mn-Zn-Ce die-casting anode alloy in examples 1 to 3, the components and the weight percentages of the components are shown in Table 1, and pure Al ingots, pure Mg ingots, pure Zn ingots, al-Cu intermediate alloys, al-Mn intermediate alloys, al-Ce intermediate alloys, al-Sr intermediate alloys, al-Ti-B intermediate alloys and elemental silicon are prepared as raw materials according to the element component proportions of the Al-Mn-Zn-Ce die-casting anode alloy;
and B, alloying: melting pure Al ingot in a smelting furnace, preserving heat for 2 hours at 720 ℃, then adding simple substance silicon, pure Zn ingot, al-Cu intermediate alloy, al-Mn intermediate alloy, al-Ce intermediate alloy, al-Sr intermediate alloy and Al-Ti-B intermediate alloy, preserving heat for 30 minutes at 720 ℃ until all the raw materials are melted, pressing into pure Mg ingot, preserving heat for 20 minutes at 720 ℃ until the pure Mg ingot is completely melted, and obtaining alloy melt;
step C, degassing and filtering: adding a refining agent, an Al-Sr refiner and an Al-Ti-B refiner into a smelting furnace, wherein the addition amount of the refining agent is 0.2% of the total mass of the alloy melt, and the addition amount of the refining agent is 0.03% of the total mass of the alloy melt, stirring and degassing, standing, and slagging-off and filtering;
step D, die casting and forming: and (3) performing die casting forming on the alloy melt by using a 300T die casting machine, wherein the temperature of the alloy melt in the die casting forming is kept at 720 ℃, the die temperature is 230 ℃, the injection speed is 3m/s, and the injection pressure is 100bar, so that the Al-Mn-Zn-Ce die casting anode alloy is obtained.
Comparative example 1
A method for preparing a die-casting anode alloy, comprising the following steps:
step A, preparing raw materials: the die-casting anode alloy in comparative example 1, the components and the weight percentages of the components are shown in table 1, and the element component proportion of the die-casting anode alloy is pressed to prepare pure Al ingot, pure Mg ingot, pure Zn ingot, al-Cu master alloy, al-Mn master alloy, al-Sr master alloy, al-Ti-B master alloy and simple substance silicon as raw materials;
and B, alloying: melting pure Al ingot in a smelting furnace, preserving heat for 2 hours at 720 ℃, then adding simple substance silicon, pure Zn ingot, al-Cu intermediate alloy, al-Mn intermediate alloy, al-Sr intermediate alloy and Al-Ti-B intermediate alloy, preserving heat for 30 minutes at 720 ℃ until all the raw materials are melted, pressing into pure Mg ingot, preserving heat for 20 minutes at 720 ℃ until the pure Mg ingot is completely melted, and obtaining alloy melt;
step C, degassing and filtering: adding a refining agent, an Al-Sr refiner and an Al-Ti-B refiner into a smelting furnace, wherein the addition amount of the refining agent is 0.2% of the total mass of the alloy melt, and the addition amount of the refining agent is 0.03% of the total mass of the alloy melt, stirring and degassing, standing, and slagging-off and filtering;
step D, die casting and forming: and (3) performing die casting forming on the alloy melt by using a 300T die casting machine, wherein the temperature of the alloy melt in the die casting forming is kept at 720 ℃, the die temperature is 230 ℃, the injection speed is 3m/s, and the injection pressure is 100bar, so that the die casting anode alloy is obtained.
Comparative examples 2 to 5
A preparation method of an Al-Mn-Zn-Ce die-casting anode alloy comprises the following steps:
step A, preparing raw materials: the Al-Mn-Zn-Ce die-casting anode alloy in comparative examples 2 to 5, the components and the weight percentages of the components are shown in Table 1, and pure Al ingots, pure Mg ingots, pure Zn ingots, al-Cu intermediate alloys, al-Mn intermediate alloys, al-Ce intermediate alloys, al-Sr intermediate alloys, al-Ti-B intermediate alloys and elemental silicon are prepared as raw materials according to the element component proportions of the Al-Mn-Zn-Ce die-casting anode alloy;
and B, alloying: melting pure Al ingot in a smelting furnace, preserving heat for 2 hours at 720 ℃, then adding simple substance silicon, pure Zn ingot, al-Cu intermediate alloy, al-Mn intermediate alloy, al-Ce intermediate alloy, al-Sr intermediate alloy and Al-Ti-B intermediate alloy, preserving heat for 30 minutes at 720 ℃ until all the raw materials are melted, pressing into pure Mg ingot, preserving heat for 20 minutes at 720 ℃ until the pure Mg ingot is completely melted, and obtaining alloy melt;
step C, degassing and filtering: adding a refining agent, an Al-Sr refiner and an Al-Ti-B refiner into a smelting furnace, wherein the addition amount of the refining agent is 0.2% of the total mass of the alloy melt, and the addition amount of the refining agent is 0.03% of the total mass of the alloy melt, stirring and degassing, standing, and slagging-off and filtering;
step D, die casting and forming: and (3) performing die casting forming on the alloy melt by using a 300T die casting machine, wherein the temperature of the alloy melt in the die casting forming is kept at 720 ℃, the die temperature is 230 ℃, the injection speed is 3m/s, and the injection pressure is 100bar, so that the Al-Mn-Zn-Ce die casting anode alloy is obtained.
TABLE 1 alloy composition tables of examples 1-3 and comparative examples 1-5
The die-cast anode support and the die-cast anode ear support were obtained by die-casting the same using the two dies by the methods of examples 1 to 3 and comparative examples 1 to 5, respectively, and the die-cast anode ear support was anodized according to a conventional aluminum alloy anodizing process. The die-cast anode bracket consists of two parts with different wall thicknesses, wherein the part with a through hole is a first part with a thicker wall thickness, and the other part is a second part with a thinner wall thickness (the wall thickness of the first part is 3.2mm, and the wall thickness of the second part is 1.0 mm). The die-casting anode lug is of a structure with a gradually changing thickness and a curved surface. The appearance of the two products prepared in examples 1-3 and comparative examples 1-5 was observed, wherein the die-cast anode holder was observed for cracks at the junction of the first portion and the second portion, for flow marks on the surface of the die-cast anode ear support, and for the appearance of the anode, as shown in table 2 below:
TABLE 2 appearance of the products of examples 1-3 and comparative examples 1-5
Fig. 1 shows die-cast anode holders prepared in example 1 and comparative example 1, and fig. 4 shows die-cast anode holders prepared in example 1 and comparative example 1, and it is apparent from the above appearance that, since the alloy of comparative example 1 has a large difference in solidification speed at the abrupt change in wall thickness, the alloy has poor feeding properties, and the junction between the first portion and the second portion (abrupt change in wall thickness) of the thin-walled member having the variation in wall thickness prepared in comparative example 1 has significant cracks (as shown by the arrow in fig. 2); meanwhile, in order to ensure certain strength, in comparative example 1, a higher Zn content and a higher Mg content are selected, and because the Zn content is higher, the alloy solidification interval is large, and when a part with a complex shape is filled, uneven flow is easy to generate, so that die casting flow marks (shown by arrows in fig. 5) are caused, and the later CNC process and polishing process cannot be removed.
The joints of the first and second parts of the thin-walled members having the varying wall thickness obtained in examples 1-3 were free from cracks, and fig. 3 shows the die-cast anode holder obtained in example 1, which was free from cracks at the joints of the first and second parts, and the disappearance of thermal cracks (as shown by the arrow in fig. 3) was clearly seen due to the increase of Ce element, and in addition, no die-cast flow marks were generated due to the improvement of the flow uniformity of the alloy as shown by the arrow in fig. 6.
The die-cast anode bracket of comparative example 2 was cracked, had cracks, and the die-cast anode ear support had flow marks, and was dull in luster and uneven in color; comparative examples 3 and 5 were not cracked, but were shiny and dark; the die-cast anode bracket of comparative example 4 was cracked, had cracks, and the die-cast anode ear support had flow marks, failing to meet the appearance requirements of the colorful high-brightness anode product.
The die casting mold design and the tensile bar size design were carried out by referring to national standard GB/T13822-2017 by the methods of examples 1-3 and comparative examples 1-5, respectively, to obtain tensile bar samples by die casting, the diameter of the tensile bar was phi 6.4mm, and the tensile bar samples were used for die casting yield strength test. The tensile bar samples of examples 1 to 3 and comparative examples 1 to 5 were subjected to solution heat treatment for heating up the tensile bar sample obtained by die casting to 500 ℃ and heat-preserving for 1 hour, then rapidly cooling to solid solution, aging treatment for heating up the tensile bar sample obtained by die casting to 130 ℃ and heat-preserving for 7 hours, and then subjected to yield strength test of the tensile bar sample in the T6 state, the test results are shown in table 3 below:
TABLE 3 mechanical Properties of examples 1-3 and comparative examples 1-5
Since Ce combines with Zn to form an AlCeZn compound, the alloy strength of the samples of examples 1-3 in as-cast state is higher than that of comparative example 1, and after T6 heat treatment (solution heat treatment and aging treatment), the strengths of examples 1-3 are comparable to that of comparative example 1. Comparative example 1 has no Ce element, the cast strength is obviously reduced, and the T6 state strength is equivalent. In comparative example 2, the increase in Ce content reduced the coarse strengthening effect of the precipitated phase. Comparative example 3 and comparative example 4 have an increased Mn content and have less influence on strength. Comparative example 5 has an improved Si content and an improved strength.
FIG. 7 is a metallographic structure of comparative example 1 of the present invention, and FIG. 8 is a metallographic structure of example 1 of the present invention, in contrast to the metallographic structure of comparative example 1, the metallographic structure of example 1 is uniformly solidified, the grain refinement is remarkable, and the crystalline phase Mg 2 Zn phase is uniformly distributed in grain boundary, coarse low-melting phase is not formed, hot cracking tendency is greatly improved, and fine Al is uniformly distributed in the grain boundary 2 Cu phase, the anode has fine effect and no die-casting flow mark.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The Al-Mn-Zn-Ce die-cast anode alloy is characterized by comprising the following components in percentage by weight: mn of 0.85-1.85%, zn of 2-6%, ce of 0.15-1.2%, si of less than or equal to 0.15%, cu of less than or equal to 0.85%, mg of 0.15-2.5%, fe of less than or equal to 0.25%, ti of less than or equal to 0.1%, sr of less than or equal to 0.05%, and the balance of Al and impurities, wherein the content of the impurities is less than or equal to 0.2%.
2. The Al-Mn-Zn-Ce die cast anode alloy according to claim 1, wherein the Al-Mn-Zn-Ce die cast anode alloy comprises the following components in percentage by weight: mn of 1.2-1.5%, zn of 3.5-5%, ce of 0.45-0.75%, si of less than or equal to 0.05%, cu of 0.1-0.2%, mg of 1-1.5%, fe of less than or equal to 0.1%, ti of less than or equal to 0.02%, sr of less than or equal to 0.02%, and the balance of Al and impurities, wherein the content of the impurities is less than or equal to 0.2%.
3. The Al-Mn-Zn-Ce die-cast anode alloy according to claim 1, wherein the die-cast yield strength of the Al-Mn-Zn-Ce die-cast anode alloy is equal to or greater than 160MPa;
after solution heat treatment and aging treatment, the yield strength of the Al-Mn-Zn-Ce die-casting anode alloy in the T6 state is more than or equal to 340MPa.
4. A method for preparing an Al-Mn-Zn-Ce die cast anode alloy according to any one of claims 1 to 3, comprising the steps of:
step A, preparing raw materials: preparing pure Al ingot, pure Mg ingot, pure Zn ingot, al-Cu intermediate alloy, al-Mn intermediate alloy, al-Ce intermediate alloy, al-Sr intermediate alloy, al-Ti-B intermediate alloy and elemental silicon as raw materials according to the element component proportion of the Al-Mn-Zn-Ce die-casting anode alloy;
and B, alloying: melting a pure Al ingot, adding simple substance silicon, a pure Zn ingot, an Al-Cu intermediate alloy, an Al-Mn intermediate alloy, an Al-Ce intermediate alloy, an Al-Sr intermediate alloy and an Al-Ti-B intermediate alloy, fully melting the raw materials, pressing into a pure Mg ingot to fully melt the pure Mg ingot, and controlling the temperature to be 710-720 ℃ in the alloying process;
step C, degassing and filtering: adding a refining agent and a refining agent, stirring for degassing, standing, and slagging off and filtering;
step D, die casting and forming: and carrying out die casting molding on the alloy melt to obtain the Al-Mn-Zn-Ce die casting anode alloy.
5. The method for preparing an Al-Mn-Zn-Ce die-cast anode alloy according to claim 4, wherein the step D further comprises solution heat treatment and aging treatment of the Al-Mn-Zn-Ce die-cast anode alloy or aging treatment of the Al-Mn-Zn-Ce die-cast anode alloy after die casting.
6. The method for preparing an Al-Mn-Zn-Ce die-cast anode alloy according to claim 5, wherein the solution heat treatment is to heat the die-cast Al-Mn-Zn-Ce die-cast anode alloy to 450-520 ℃, preserve heat for 0.5-1 h, and then quickly cool for solid solution;
the aging treatment is to heat the Al-Mn-Zn-Ce die-casting anode alloy to 120-150 ℃ and keep the temperature for 6-10 h.
7. The method for preparing Al-Mn-Zn-Ce die-casting anode alloy according to claim 4, wherein in the step B, pure Al ingot is melted, heat preservation is carried out for 2-3 hours at 710-720 ℃, then elemental silicon, pure Zn ingot, al-Cu intermediate alloy, al-Mn intermediate alloy, al-Ce intermediate alloy, al-Sr intermediate alloy and Al-Ti-B intermediate alloy are added, heat preservation is carried out for 30-40 minutes at 710-720 ℃ until all the raw materials are melted, pure Mg ingot is pressed in, heat preservation is carried out for 20-30 minutes at 710-720 ℃ until pure Mg ingot is completely melted, and alloy melt is obtained;
in the step C, a refining agent and a refining agent are added, stirred and deaerated for 15-20 min, and the mixture is kept stand for 20-30 min and then is subjected to slag skimming and filtration.
8. The method for producing an Al-Mn-Zn-Ce die-cast anode alloy according to claim 4, wherein in the step D, the temperature of the alloy melt in the die casting is maintained at 710 to 730 ℃, the die temperature is 210 to 230 ℃, the injection speed is 2.5 to 3m/s, and the injection pressure is 100 to 120bar.
9. The method for producing an Al-Mn-Zn-Ce die-cast anode alloy according to claim 4, wherein in said step C, the addition amount of said refining agent is 0.1 to 0.3% of the total mass of the alloy melt;
the addition amount of the refiner is 0.02-0.05% of the total mass of the alloy melt, and the refiner is an Al-Sr refiner and an Al-Ti-B refiner.
10. Use of an Al-Mn-Zn-Ce die cast anode alloy according to any one of claims 1 to 3 for the manufacture of thin walled components with varying wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310648575.3A CN116676515B (en) | 2023-06-02 | 2023-06-02 | Al-Mn-Zn-Ce die-casting anode alloy and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310648575.3A CN116676515B (en) | 2023-06-02 | 2023-06-02 | Al-Mn-Zn-Ce die-casting anode alloy and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116676515A true CN116676515A (en) | 2023-09-01 |
| CN116676515B CN116676515B (en) | 2024-01-30 |
Family
ID=87783049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310648575.3A Active CN116676515B (en) | 2023-06-02 | 2023-06-02 | Al-Mn-Zn-Ce die-casting anode alloy and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116676515B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117144199A (en) * | 2023-09-06 | 2023-12-01 | 佛山市营鑫新材料有限公司 | High-strength high-fluidity anodic oxidation Al-Mn series die casting alloy and preparation method thereof |
| CN117568680A (en) * | 2024-01-16 | 2024-02-20 | 华东理工大学 | Aluminum alloy and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU480513A1 (en) * | 1973-04-28 | 1975-08-15 | Предприятие П/Я М-5539 | Aluminum-based welding wire alloy |
| JP2000212668A (en) * | 1999-01-25 | 2000-08-02 | Mitsubishi Alum Co Ltd | Aluminum alloy extruded tube for heat exchanger excellent in corrosion resistance |
| CN106756322A (en) * | 2016-12-29 | 2017-05-31 | 歌尔股份有限公司 | It is a kind of can anodic coloration pack alloy |
| CN110029250A (en) * | 2019-04-03 | 2019-07-19 | 宁波合力模具科技股份有限公司 | High-elongation birmastic and its compression casting preparation method |
| CN113005344A (en) * | 2021-03-24 | 2021-06-22 | 中山市满鑫科技有限公司 | High-performance aluminum alloy die casting and preparation method thereof |
| CN113862523A (en) * | 2021-09-29 | 2021-12-31 | 沈阳航空航天大学 | Al-Mn series die-casting alloy and preparation method and application thereof |
| WO2022073300A1 (en) * | 2020-10-09 | 2022-04-14 | 东莞理工学院 | High-strength high-wear-resistance al-si alloy and preparation method therefor and application thereof |
| CN115522104A (en) * | 2021-11-23 | 2022-12-27 | 中铝材料应用研究院有限公司 | Anodic oxidation die-casting aluminum alloy and preparation method thereof |
| CN115927936A (en) * | 2022-12-22 | 2023-04-07 | 北京机科国创轻量化科学研究院有限公司 | High-strength and high-toughness aluminum alloy and preparation method thereof |
-
2023
- 2023-06-02 CN CN202310648575.3A patent/CN116676515B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU480513A1 (en) * | 1973-04-28 | 1975-08-15 | Предприятие П/Я М-5539 | Aluminum-based welding wire alloy |
| JP2000212668A (en) * | 1999-01-25 | 2000-08-02 | Mitsubishi Alum Co Ltd | Aluminum alloy extruded tube for heat exchanger excellent in corrosion resistance |
| CN106756322A (en) * | 2016-12-29 | 2017-05-31 | 歌尔股份有限公司 | It is a kind of can anodic coloration pack alloy |
| CN110029250A (en) * | 2019-04-03 | 2019-07-19 | 宁波合力模具科技股份有限公司 | High-elongation birmastic and its compression casting preparation method |
| WO2022073300A1 (en) * | 2020-10-09 | 2022-04-14 | 东莞理工学院 | High-strength high-wear-resistance al-si alloy and preparation method therefor and application thereof |
| CN113005344A (en) * | 2021-03-24 | 2021-06-22 | 中山市满鑫科技有限公司 | High-performance aluminum alloy die casting and preparation method thereof |
| CN113862523A (en) * | 2021-09-29 | 2021-12-31 | 沈阳航空航天大学 | Al-Mn series die-casting alloy and preparation method and application thereof |
| CN115522104A (en) * | 2021-11-23 | 2022-12-27 | 中铝材料应用研究院有限公司 | Anodic oxidation die-casting aluminum alloy and preparation method thereof |
| CN115927936A (en) * | 2022-12-22 | 2023-04-07 | 北京机科国创轻量化科学研究院有限公司 | High-strength and high-toughness aluminum alloy and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117144199A (en) * | 2023-09-06 | 2023-12-01 | 佛山市营鑫新材料有限公司 | High-strength high-fluidity anodic oxidation Al-Mn series die casting alloy and preparation method thereof |
| CN117144199B (en) * | 2023-09-06 | 2024-04-02 | 佛山市营鑫新材料有限公司 | High-strength high-fluidity anodic oxidation Al-Mn series die casting alloy and preparation method thereof |
| CN117568680A (en) * | 2024-01-16 | 2024-02-20 | 华东理工大学 | Aluminum alloy and preparation method thereof |
| CN117568680B (en) * | 2024-01-16 | 2024-04-16 | 华东理工大学 | Aluminum alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116676515B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116676515B (en) | Al-Mn-Zn-Ce die-casting anode alloy and preparation method and application thereof | |
| CN108330354B (en) | high-strength aluminum alloy for electronic equipment and preparation and extrusion methods thereof | |
| CN109487134B (en) | High-strength aluminum alloy for electronic product appearance part and preparation method thereof | |
| CN109628804B (en) | High-strength aluminum alloy with excellent oxidation effect and preparation method thereof | |
| CN107385290A (en) | A kind of high-strength aluminum alloy with excellent oxidation effect and its preparation method and application | |
| CN110714148A (en) | High-performance semi-solid die-casting aluminum alloy and preparation method thereof | |
| CN107447141B (en) | A kind of electronic product casing high-strength aluminum alloy and preparation method thereof | |
| CN108251722B (en) | A kind of fine isometric crystal grains Al-Zn-Mg line aluminium alloy and preparation method thereof | |
| CN110079712B (en) | Cast high-toughness die-casting aluminum-silicon alloy and preparation method and application thereof | |
| CN108517446A (en) | A kind of preparation method of high toughness Al-alloy for evacuated die-casting process and products thereof | |
| CN113373352A (en) | High-pressure cast aluminum alloy and preparation method thereof | |
| CN111690844B (en) | Eutectic Al-Fe-Mn-Si-Mg die casting alloy and preparation method and application thereof | |
| CN115261684A (en) | Cast Al-Si alloy and preparation method thereof | |
| CN115233017A (en) | Method for manufacturing high-pressure cast aluminum alloy | |
| CN113083923B (en) | Production process of aluminum alloy shell for electronic product | |
| CN113151712A (en) | Aluminum alloy and preparation method thereof | |
| CN109487133A (en) | One kind can anodic oxidation high intensity 6xxx line aluminium alloy and preparation method thereof | |
| CN115522104B (en) | Anodic oxidation die-casting aluminum alloy and preparation method thereof | |
| CN113862523A (en) | Al-Mn series die-casting alloy and preparation method and application thereof | |
| CN114381640B (en) | High-strength aluminum alloy material for rheocasting and application method thereof | |
| CN110938763B (en) | Preparation method of die-casting aluminum alloy material capable of being anodized and die-casting method | |
| CN111926220A (en) | Aluminum alloy material for high-performance thin-wall 3D printing sand casting and preparation method thereof | |
| CN112030047A (en) | Preparation method of high-hardness fine-grain rare earth aluminum alloy material | |
| CN103938044B (en) | Magnesium-stannum-zinc-aluminum wrought magnesium alloy suitable for being extruded | |
| CN115627394A (en) | High-pressure cast aluminum alloy for automobile integrated auxiliary frame and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |