High-strength dissolvable aluminum alloy and preparation method therefor
11047025 · 2021-06-29
Assignee
Inventors
Cpc classification
C22C21/003
CHEMISTRY; METALLURGY
International classification
Abstract
The present invention relates to a technical field of functional materials, and in particular to a high-strength dissolvable aluminum alloy and a preparation method therefor. In order to solve the problem of a relatively low strength of the existing dissolvable materials, a high-strength dissolvable aluminum alloy material and a preparation method therefor are provided. The raw materials of the high-strength dissolvable aluminum alloy comprise: aluminum, a functional metal, and a metal oxide; the addition amounts of the aluminum and the functional metals are: 60-99 wt. % of aluminum, 0.9-39.9 wt. % of the functional metals; and the addition amount of the metal oxide is: 0.01-11 wt. %. The high-strength dissolvable aluminum alloy can not only meet the usage requirements of high mechanical strength in service, but can also rapidly degrade after the service is completed. In addition, the preparation method of this material is simple, low in cost, and easy for large-scale production.
Claims
1. A method for preparing a high-strength soluble aluminum alloy, wherein raw materials of the method comprise aluminum, functional metals and metallic oxide, the functional metals are Ga, Mn, In, Sn, Mg, Zn and Si, wherein addition amounts of the aluminum and the functional metals are 87 wt. % of Al, 8.0 wt. % of Sn, 0.1 wt. % of Si, 0.2 wt. % of Mn, 1.0 wt. % of Mg, 0.1 wt. % of Ga, 0.3 wt. % of In, and 0.3 wt. % of Zn, and the metallic oxide is 3 wt. % of TiO.sub.2, or a mixture of 2 wt. % of TiO.sub.2, 0.5 wt. % of Cr.sub.2O.sub.3 and 0.5 wt. % of MoO.sub.3, wherein the method comprises following steps: (1) firstly melting aluminum to produce an aluminum melt, wherein the melting temperature is 660-1,000° C.; (2) adding functional metals to the aluminum melt according to the addition amounts of the functional metals; (3) deslagging and degassing the aluminum melt, and then adding metallic oxide preheated to a temperature of 200-300° C.; and (4) mixing the aluminum, the functional metals and the metallic oxide to make alloy ingredients uniform; and manufacturing, after a process of alloying is completed, workpiece products by a casting process.
2. The method for preparing the high-strength soluble aluminum alloy according to claim 1, wherein the melting temperature in step (1) is 710° C.
3. The method for preparing the high-strength soluble aluminum alloy according to claim 1, wherein step (2) comprises adding functional metals to the aluminum melt according to the addition amounts of the functional metals, fully stirring and preserving heat at 760° C.
4. The method for preparing the high-strength soluble aluminum alloy according to claim 1, wherein step (2) comprises adding functional metals to the aluminum melt according to the addition amounts of the functional metals, fully stirring and preserving heat at 760° C. for 30 minutes.
5. The method for preparing the high-strength soluble aluminum alloy according to claim 1, wherein step (3) comprises adding metallic oxide preheated to a temperature of 300° C.
6. The method for preparing the high-strength soluble aluminum alloy according to claim 1, wherein step (3) comprises adding metallic oxide preheated to a temperature of 300° C. for 1 hour.
Description
BRIEF DESCRIPTION OF DRAWINGS
(1)
(2)
DETAILED DESCRIPTION OF EMBODIMENTS
(3) Next, technical scheme of the present invention will be further described through concrete mode of implementation in the combination of the Figures.
(4) As is shown in
(5) As is shown in
(6) This dissolution rate is obtained by measuring diameter variation (decreasing) of the alloying pellet at certain intervals. As the diameter varies linearly with the decreasing of time, we adopt the unit mm/h to indicate the dissolution rate.
Example 1
(7) The present invention provides a kind of high-strength soluble aluminum alloy, which is prepared according to following processes: Add titanium dioxide (TiO.sub.2) of 3 wt. % to 97 wt. % into the aluminum alloy melt, and the titanium dioxide will carry out reactions in it: 3MxOy+2yAl-yAl.sub.2O.sub.3+3xM. Then the product Ti will dissolve in it, while fine Al.sub.2O.sub.3 particles will disperse and scatter in it, thus the high-strength soluble aluminum alloy containing Al.sub.2O.sub.3 with reinforced phase is formed.
(8) The above-mentioned aluminum alloys include following components:
(9) Al: 87 wt. %, Sn: 8.0 wt. %, Si: 0.1 wt. %, Mn: 0.2 wt. %, Mg: 1.0 wt. %, Ga: 0.1 wt. %, In: 0.3 wt. %, Zn: 0.3 wt. %.
(10) The above-mentioned high-strength soluble aluminum alloy includes following steps:
(11) (1) Smelt the Aluminum Matrix at High Temperature.
(12) Weigh aluminum ingots accounting for 87% of the total weight of the alloy and put them into the melting furnace until they are heated up to 710° C. and melt into molten aluminum;
(13) (2) Carry Out Weight Ratio of the Functional Metals, and Conduct Melting and Stirring
(14) Add the metals into the aluminum melt prepared in Step (1) according to following weight ratio: Sn: 8.0 wt. %, Si: 0.1 wt. %, Mn: 0.2 wt. %, Mg: 1.0 wt. %, Ga: 0.1 wt. %, In: 0.3 wt. %, Zn: 0.3 wt. %, then preserve heat for 30 minutes after they are heated up to 760° C. to obtain the aluminum alloy, and fully stir them in this step to obtain the function alloy melt with macroscopic homogeneous property.
(15) (3) Deslagging and Degasing Process
(16) Add the modified polyether silicon defoamer accounting for 0.5 wt. % of the total weight of the alloy melt prepared in Step (2) into the aluminum alloy melt to carry out deslagging and degasing and make the aluminum alloy melt homogenized.
(17) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phase
(18) Cool the aluminum alloy melt to 690° C., then weigh the metallic oxide-titanium dioxide (TiO.sub.2) with weight percentage of 3 wt. % and preheat them for an hour under 300° C., then add them into the aluminum alloy melt and fully stir them, then preserve heat for 30 minutes after they are heated up to 800° C. to make the alloy melt prepared in Step (3) react with the titanium dioxide:
(19) 3TiO.sub.2+4Al-2Al.sub.2O.sub.3+3Ti, the resultant Ti elementary substance is dissolved in the alloy melt, and fine Al.sub.2O.sub.3 granules are dispersively distributed in alloy melt;
(20) (5) Casting and Cooling
(21) Cast the alloy melt produced in Step (4) in the preheated mould; then cool the produced casting product 5 and the mould to the room temperature, and produce the high-strength and soluble aluminum alloy material.
Example 2
(22) This invention provides a kind of high-strength soluble aluminum alloy, which is produced by adopting the under-mentioned method:
(23) (1) Smelt the Aluminum Matrix at High Temperature.
(24) Weigh and put aluminum ingot which occupies 87% of the total weight of the final alloy into the smelting furnace, rise the temperature to 710° C., and smelt it 10 into the melt;
(25) (2) Functional Metals Weight Ratio, Melting and Mixing
(26) According to the weight ratio, add Sn: 8.0 wt. %, Si: 0.1 wt. %, Mn: 0.2 wt. %, Mg: 1.0 wt. %, Ga: 0.1 wt. %, In: 0.3 wt. %, Zn: 0.3 wt. % into the aluminum melt produced in Step (1), preserve the temperature at 760° C. for 0.5 h and smelt to produce aluminum alloy, stir it completely to produce the alloy melt with the 15 macroscopic homogeneous property during Step (2);
(27) (3) Deslagging and Degassing Process
(28) Add into polyether modified silicone antifoam agent which is 0.5 wt. % of the total weight of alloy melt produced in Step (2) for deslagging 10 and degassing and homogenizing alloy melt;
(29) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(30) 20 Drop the temperature of alloy melt to 690° C., weigh and preheat the metallic oxide chromium sesquioxide (Cr.sub.2O.sub.3) of 3 wt. % of weight proportion for 1 hour under 300° C. into the alloy melt, stir it completely, preserve the temperature at 800° C. for 0.5 h, make the alloy melt produced in Step (3) react with the added chromium sesquioxide: Cr.sub.2O.sub.3+2Al—Al.sub.2O.sub.3+2Cr, the resultant Cr elementary substance is dissolved in the alloy melt, and fine Al.sub.2O.sub.3 granules are dispersively distributed in alloy melt;
(31) (5) Casting and Cooling
(32) Cast the alloy melt produced in Step (4) in the preheated mould; then cool the produced casting product and the mould to the room temperature, and produce the high-strength soluble aluminum alloy material.
Example 3
(33) This invention provides a kind of high-strength soluble aluminum alloy, which is produced by adopting the under-mentioned method:
(34) (1) Melting the Aluminum Matrix Under High Temperature.
(35) Weigh and put aluminum ingot which occupies 87% of the total weight of the final alloy into the smelting furnace, rise the temperature to 710° C., and smelt it into the melt;
(36) (2) Functional Metals Weight Ratio, Melting and Mixing
(37) According to the weight ratio, add Sn: 8.0 wt. %, Si: 0.1 wt. %, Mn: 0.2 wt. %, Mg: 1.0 wt. %, Ga: 0.1 wt. %, In: 0.3 wt. %, Zn: 0.3 wt. % into the aluminum melt produced in Step (1), 10 preserve the temperature at 760° C. for 0.5 h and smelt to produce aluminum alloy, stir it completely to produce the alloy melt with the macroscopic homogeneous property during Step (2);
(38) (3) Deslagging and Degassing Process
(39) Add into polyether modified silicone antifoam agent which is 0.5 wt. % of the total weight of alloy melt produced in Step (2) for deslagging 10 and degassing and homogenizing alloy melt;
(40) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(41) Drop the temperature of alloy melt to 690° C., weigh and preheat the metallic oxide molybdenum trioxide (MoO.sub.3) of 3 wt. % of weight proportion for 1 hour under 300° C. into the alloy melt, stir it completely, preserve the temperature at 800° C. for 0.5 h, make the alloy melt produced in Step (3) react with the added molybdenum trioxide: MoO.sub.3+2Al—Al.sub.2O.sub.3+Mo, the resultant Mo elementary substance is dissolved in the alloy melt, and the fine Al.sub.2O.sub.3 granules are dispersively distributed in alloy melt;
(42) (5) Casting and Cooling
(43) Cast the alloy melt produced in Step (4) in the preheated mould; then cool the produced casting product and the mould to the room temperature, and produce the high-strength soluble aluminum alloy material.
Example 4
(44) This invention provides a kind of high-strength soluble aluminum alloy, which is produced by adopting the under-mentioned method:
(45) (1) Smelt the Aluminum Matrix at High Temperature.
(46) Weigh and put aluminum ingot which occupies 87% of the total weight of the final alloy into the smelting furnace, rise the temperature to 710° C., and smelt it into the melt;
(47) (2) Functional Metals Weight Ratio, Melting and Mixing
(48) According to the weight ratio, add Sn: 8.0 wt. %, Si: 0.1 wt. %, Mn: 0.2 wt. %, Mg: 1.0 wt. %, 5 Ga: 0.1 wt. %, In: 0.3 wt. %, Zn: 0.3 wt. % into the aluminum melt produced in Step (1), preserve the temperature at 760° C. for 0.5 h and smelt to produce aluminum alloy, stir it completely to produce the aluminum alloy melt with the macroscopic homogeneous property during Step (2);
(49) (3) Deslagging and Degassing Process
(50) Add into polyether modified silicone antifoam agent which is 0.5 wt. % of the total weight of alloy melt produced in Step (2) for deslagging 10 and degassing and homogenizing alloy melt;
(51) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(52) Drop the temperature of alloy melt to 690° C., weigh and preheat the metallic oxide mixture including titanium dioxide (TiO.sub.2) of 2 wt. %, chromic sesquioxide (Cr.sub.2O.sub.3) of 0.5 wt. % and molybdenum trioxide (MoO.sub.3) of 0.5 wt. % of weight proportion for 1 hour under 300° C. into the alloy melt, stir it completely, preserve the heat under 800° C. for 0.5 hours, make the alloy melt produced in Step (3) react with the added oxides simultaneously: 3MxOy+2yAl-yAl.sub.2O.sub.3+3xM, the resultant Ti, Cr, Mo elementary substance are evenly dissolved in the alloy melt, and fine Al.sub.2O.sub.3 granules are dispersively distributed in alloy melt;
(53) (5) Casting and Cooling
(54) Cast the alloy melt produced in Step (4) in the preheated mould; then cool the produced casting product 20 and the mould to the room temperature, and produce the high-strength soluble aluminum alloy material.
Example 5
(55) This invention provides a kind of high-strength soluble aluminum alloy, which is produced by adopting the under-mentioned method:
(56) (1) Smelt the Aluminum Matrix at High Temperature.
(57) Weigh and put aluminum ingot which occupies 70% of the total weight of the final alloy into the smelting furnace, rise the temperature to 710° C., and smelt it 25 into the melt;
(58) (2) Functional Metals Weight Ratio, Melting and Mixing
(59) According to the weight ratio, add Sn: 12.0 wt. %, Si: 2.0 wt. %, Mn: 1.0 wt. %, Mg: 4.0 wt. %, Ga: 5.0 wt. %, In: 3.5 wt. %, Zn: 1.5 wt. % into the aluminum melt produced in Step (1), preserve the temperature at 760° C. for 0.5 h and smelt to produce aluminum alloy, stir it completely to produce the aluminum alloy melt with the macroscopic homogeneous property during Step (2);
(60) (3) Deslagging and Degassing Process
(61) Add into polyether modified silicone antifoam agent which is 0.5 wt. % of the total weight of alloy melt produced in Step (2) for deslagging 10 and degassing and homogenizing alloy melt;
(62) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(63) Drop the temperature of alloy melt to 690° C., weigh and preheat the metallic oxide titanium dioxide 10 (TiO.sub.2) of 1 wt. % of weight proportion for 1 hour under 300° C. into the alloy melt, stir it completely, preserve the temperature at 800° C. for 0.5 h, make the alloy melt produced in Step (3) react with the added titanium dioxide: 3TiO.sub.2+4Al-2Al.sub.2O.sub.3+3Ti, the resultant Ti elementary substance is dissolved in the alloy melt, and fine Al.sub.2O.sub.3 granules are dispersively distributed in alloy melt;
(64) (5) Casting and Cooling
(65) Cast the alloy melt produced in Step (4) in the preheated mould; then cool the produced casting product and the mould to the room temperature, and produce the high-strength soluble aluminum alloy material.
Example 6
(66) This invention provides a kind of high-strength soluble aluminum alloy, which is produced by adopting the under-mentioned method:
(67) (1) Smelt the Aluminum Matrix at High Temperature.
(68) Weigh and put aluminum ingot which occupies 70% of the total weight of the final alloy into the smelting furnace, rise the temperature to 710° C., and smelt it into the melt;
(69) (2) Functional Metals Weight Ratio, Melting and Mixing
(70) According to the weight ratio, add Sn: 13.0 wt. %, Si: 2.0 wt. %, Mn: 1.0 wt. %, Mg: 4.0 wt. %, Ga: 5.0 wt. %, In: 2.5 wt. %, Zn: 1.5 wt. % into the aluminum melt 25 produced in Step (1), preserve the temperature at 760° C. for 0.5 h and smelt to produce aluminum alloy, stir it completely to produce the aluminum alloy melt with the macroscopic homogeneous property during Step (2);
(71) (3) Deslagging and Degassing Process
(72) Add into polyether modified silicone antifoam agent which is 0.2 wt. % of the total weight of alloy melt produced in Step (2) for deslagging 10 and degassing and homogenizing alloy melt;
(73) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(74) Drop the temperature of alloy melt to 690° C., weight and preheat the metallic oxide chromium sesquioxide (Cr.sub.2O.sub.3) of 1 wt. % of weight proportion for 1 hour under 300° C. into the alloy melt, stir it completely, preserve the temperature at 800° C. for 0.5 h, make the alloy melt produced in Step (3) react with the added chromium sesquioxide: Cr.sub.2O.sub.3+2Al—Al.sub.2O.sub.3+2Cr, the resultant Cr elementary substance is dissolved in the alloy melt, and fine Al.sub.2O.sub.3 granules are dispersively distributed in alloy melt;
(75) (5) Casting and Cooling
(76) Cast the alloy melt produced in Step (4) in the preheated mould; then cool the produced casting product and the mould to the room temperature, and produce the high-strength soluble aluminum alloy material.
Example 7
(77) The invention provides a kind of high-strength dissoluble aluminum alloy and prepares according to following method:
(78) (1) Smelt the Aluminum Matrix at High Temperature.
(79) Weigh aluminum ingot that is 70% of final total alloy weight, put into melting furnace, heat up to 710° C. and let it turn into melt;
(80) (2) Weight Proportion, Smelting and Mixing of Functional Metal
(81) Add Sn: 13.0 wt. %, Si: 2.0 wt. %, Mn: 1.0 wt. %, Mg: 4.0 wt. %, Ga: 5.0 wt. %, In: 2.5 wt. %, and Zn: 1.5 wt. % into the aluminum melt obtained in Step (1) according to the weight proportion, smelt into aluminum alloy for 0.5 h in 760° C.; sufficiently mix during Step (2) to turn into macroscopic uniform aluminum alloy melt;
(82) (3) Deslagging and Degassing Process
(83) Add polyether modified silicone defoamer that is 0.5 wt. % of total weight of the alloy melt obtained in Step (2) to carry out deslagging and degasification disposal and let alloy melt uniform;
(84) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(85) Cool the alloy melt down to 690° C.; weigh 1 wt. % metallic oxide MoO3 and preheat 1 h under 300° C., add into alloy melt, mix sufficiently and keep in constant 800° C. for 0.5 h so that the alloy melt obtained in Step (3) and added MoO.sub.3 react: MoO.sub.3+2Al—Al.sub.2O.sub.3+Mo; the product Mo simple substance dissolves in the alloy melt, while the tiny Al.sub.2O.sub.3 particles diffuse in alloy melt;
(86) (5) Casting and Cooling
(87) Cast the alloy melt obtained in Step (4) into preheated mould; then cool the obtained casting along with the mould down to indoor temperature and make high-strength dissoluble aluminum alloy materials.
Example 8
(88) The invention provides a kind of high-strength dissoluble aluminum alloy and prepares according to following method:
(89) (1) Smelt the Aluminum Matrix at High Temperature.
(90) Weigh aluminum ingot that is 60% of final total alloy weight, put into melting furnace, heat up to 710° C. and let it turn into melt;
(91) (2) Weight Proportion, Smelting and Mixing of Functional Metal
(92) Add Sn: 3.0 wt. %, Si: 2.0 wt. %, Mn: 1.5 wt. %, Mg: 4.0 wt. %, Ga: 12 wt. %, In: 5.5 wt. %, and Zn: 1.0 wt. % into the aluminum melt obtained in Step (1) according to the weight proportion, smelt into aluminum alloy for 0.5 h in 760° C.; sufficiently mix during Step (2) to turn into macroscopic uniform aluminum alloy melt;
(93) (3) Deslagging and Degassing Process
(94) Add polyether modified silicone defoamer that is 0.5 wt. % of total weight of the alloy melt obtained in Step (2) to carry out deslagging and degasification disposal and let alloy melt uniform;
(95) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(96) Cool the alloy melt down to 690° C.; weigh 11 wt. % metallic oxide TiO.sub.2 and preheat 1 h under 300° C., add into alloy melt, mix sufficiently and keep in constant 800° C. for 0.5 h so that the alloy melt obtained in Step (3) and added TiO.sub.2 react: 3TiO.sub.2+4Al-2Al.sub.2O.sub.3+3Ti; the product Ti simple substance dissolves in the alloy melt, while the tiny Al.sub.2O.sub.3 particles diffuse in alloy melt;
(97) (5) Casting and Cooling
(98) Cast the alloy melt obtained in Step (4) into preheated mould; then cool the obtained casting along with the mould down to indoor temperature and make high-strength dissoluble aluminum alloy materials.
Example 9
(99) The invention provides a kind of high-strength dissoluble aluminum alloy and prepares according to following method:
(100) (1) Smelt the Aluminum Matrix at High Temperature.
(101) Weigh aluminum ingot that is 60% of final total alloy weight, put into melting furnace, heat up to 710° C. and let it turn into melt;
(102) (2) Weight Proportion, Smelting and Mixing of Functional Metal
(103) Add Sn: 13.0 wt. %, Si: 2.0 wt. %, Mn: 1.5 wt. %, Mg: 4.0 wt. %, Ga: 6.5 wt. %, In: 1.0 wt. %, and Zn: 1.0 wt. % into the aluminum melt obtained in Step (1) according to the weight proportion, smelt into aluminum alloy for 0.5 h in 760° C.; sufficiently mix during Step (2) to turn into macroscopic uniform aluminum alloy melt;
(104) (3) Deslagging and Degassing Process
(105) Add polyether modified silicone defoamer that is 1.0 wt. % of total weight of the alloy melt obtained in Step (2) to carry out deslagging and degasification disposal and let alloy melt uniform;
(106) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(107) Cool the alloy melt down to 690° C.; weigh 11 wt. % metallic oxide Cr.sub.2O.sub.3 and preheat 1 h under 300° C., add into alloy melt, mix sufficiently and keep in constant 800° C. for 0.5 h so that the alloy melt obtained in Step (3) and added Cr.sub.2O.sub.3 react: Cr.sub.2O.sub.3+2Al—Al.sub.2O.sub.3+2Cr; the product Cr simple substance dissolves in the alloy melt, while the tiny Al.sub.2O.sub.3 particles diffuse in alloy melt;
(108) (5) Casting and Cooling
(109) Cast the alloy melt obtained in Step (4) into preheated mould; then cool the obtained casting along with the mould down to indoor temperature and make high-strength dissoluble aluminum alloy materials.
Example 10
(110) The invention provides a kind of high-strength dissoluble aluminum alloy and prepares according to following method:
(111) (1) Smelt the Aluminum Matrix at High Temperature.
(112) Weigh aluminum ingot that is 60% of final total alloy weight, put into melting furnace, heat up to 710° C. and let it turn into melt;
(113) (2) Weight Proportion, Smelting and Mixing of Functional Metal
(114) Add Sn: 13.0 wt. %, Si: 2.0 wt. %, Mn: 1.5 wt. %, Mg: 4.0 wt. %, Ga: 2 wt. %, In: 5.5 wt. %, and Zn: 1.0 wt. % into the aluminum melt obtained in Step (1) according to the weight proportion, smelt into aluminum alloy for 0.5 h in 760° C.; sufficiently mix during Step (2) to turn into macroscopic uniform aluminum alloy melt;
(115) (3) Deslagging and Degassing Process
(116) Add polyether modified silicone defoamer that is 0.5 wt. % of total weight of the alloy melt obtained in Step (2) to carry out deslagging and degasification disposal and let alloy melt uniform;
(117) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(118) Cool the alloy melt down to 690° C.; weigh 11 wt. % metallic oxide MoO.sub.3 and preheat 1 h under 300° C., add into alloy melt, mix sufficiently and keep in constant 800° C. for 0.5 h so that the alloy melt obtained in Step (3) and added MoO3 react: MoO.sub.3+2Al—Al.sub.2O.sub.3+Mo; the product Mo simple substance dissolves in the alloy melt, while the tiny Al.sub.2O.sub.3 particles diffuse in alloy melt;
(119) (5) Casting and Cooling
(120) Cast the alloy melt obtained in Step (4) into preheated mould; then cool the obtained casting along with the mould down to indoor temperature and make high-strength dissoluble aluminum alloy materials.
Example 11
(121) The invention provides a kind of high-strength dissoluble aluminum alloy. The raw materials of the listed high-strength dissoluble aluminum alloy include: aluminum, functional metal, metallic oxide; the added proportion of the listed aluminum and functional metal is: aluminum: 60 wt. %; functional metal: 39.9 wt. %; the added proportion of the listed metallic oxide is: 0.1 wt. %. The proportion of the functional metals is as below: Sn: 20 wt. %, Si: 0 wt. %, Mn: 0.1 wt. %, Mg: 0 wt. %, Ga: 15 wt. %, In: 4.8 wt. %, and Zn: 0 wt. %.
(122) The listed metallic oxide is MoO.sub.3.
(123) The preparation method of the high-strength dissoluble alluminum alloy includes following steps:
(124) (1) Smelt the Aluminum Matrix at High Temperature.
(125) Put aluminum ingot into melting furnace, heat up to 660-800° C. and let it turn into aluminum melt;
(126) (2) Add functional metal and smelt into aluminum alloy together with alluminum substrate. Step (2) includes weight proportion, smelting and mixing courses.
(127) Add functional metal into the aluminum melt obtained in Step (1) according to the weight proportion, mix sufficiently and keep 2 h in 660-800° C. to turn into macroscopic uniform aluminum alloy melt.
(128) (3) Deslagging and Degassing Process
(129) Add defoamer obtained in Step (2) to carry out deslagging and degasification disposal and let alloy melt uniform; the defoamer mentioned in Step (3) is polyether modified silicone and the added proportion is 1.0 wt. % of the total weight of the aluminum alloy melt obtained in Step (2);
(130) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(131) Prehent the metallic oxide for 1 h under 200° C. and cool the alloy melt down to 680° C.; then add metallic oxide into the alloy melt that has been cooled to 680° C.; mix sufficiently and keep 2 h in 660-800° C.;
(132) (5) Casting and Cooling
(133) Cast the alloy melt obtained in Step (4) into preheated mould; then cool the obtained casting along with the mould down to indoor temperature and make high-strength dissoluble aluminum alloy workpiece.
Example 12
(134) The invention provides a kind of high-strength dissoluble aluminum alloy. The raw materials of the listed high-strength dissoluble aluminum alloy include: aluminum, functional metal, metallic oxide; the added proportion of the listed aluminum and functional metal is: aluminum: 99 wt. %; functional metal: 0.9 wt. %; the added proportion of the listed metallic oxide is: 0.1 wt. %. The proportion of the functional metal is 0.1 wt. % of Sn, 0 wt. % of Si, 0.2 wt. % of Mn, 0 wt. % of Mg, 0.1 wt. % of Ga, 0.1 wt. % of In, and 0.4 wt. % of Zn.
(135) The oxide is manganese dioxide (MnO.sub.2).
(136) The preparation method for high-strength soluble aluminum alloy comprises the following steps:
(137) (1) Smelt the Aluminum Matrix at High Temperature
(138) Put the aluminum ingot into a melting furnace, heating to 800-1000° C. to fuse into molten aluminum;
(139) (2) Add functional metal, aluminum matrix fuse to form aluminum alloy; step (2) includes the steps of mass proportion, melting and stirring process.
(140) The functional metal is added into the aluminum melt by weight percent in the step (1). The mixture shall be sufficiently stirred and kept at 800-1000° C. for 0.5 hour to make the aluminum alloy melt with macroscopic and uniform property.
(141) (3) Deslagging and Degassing Process
(142) Add the alloy melt obtained in the step (2) to the antifoaming agent to carry out the degassing and slag-removing treatment and homogenizing the alloy melt. The main components of antifoaming agent mentioned in step (3) is polyether modified silicon, and the adding amount is 0.2 wt. % of the total weight of alloy melted in the step (2).
(143) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(144) The metal oxide was preheated at 300° C. for 1 hour and the alloy melt was cooled to 700° C. Thereafter, the metal oxide was added to the alloy melt and cooled to 700° C., sufficiently stirred, and held at 800-1000° C. for 0.5 hour;
(145) (5) Casting and Cooling
(146) Cast the alloy melt obtained in the step (4) into a preheated mold; and then cooling the casting to the room temperature together with the mold to obtain a high-strength soluble aluminum alloy work-piece.
Example 13
(147) The present invention provides a high-strength soluble aluminum alloy. The raw material of the high-strength soluble aluminum alloy includes: aluminum, a functional metal, and a metal oxide. The adding amount of said aluminum and functional metal is 62.99 wt. % of aluminum and 37 wt. % of functional mental. The adding amount of metal oxide is about 0.01 wt. %.
(148) The proportion of the functional metal is 10 wt. % of Sn, 10 wt. % of Si, 5 wt. % of Mn, 10 wt. % of Mg, 1 wt. % of Ga, 1 wt. % of In, and 0 wt. % of Zn.
(149) The oxide is chromic oxide (Cr.sub.2O.sub.3).
(150) The preparation method for high-strength soluble aluminum alloy comprises the following steps:
(151) (1) Smelt the Aluminum Matrix at High Temperature
(152) Put the aluminum ingot into a melting furnace, heating to 820-880° C. to fuse into molten aluminum;
(153) (2) Add Functional Metal, Aluminum Matrix Fuse to Form Aluminum Alloy; Step (2) Includes the Steps of Mass Proportion, Melting and Stirring Process.
(154) The functional metal is added into the aluminum melt by weight percent in the step (1). The mixture shall be sufficiently stirred and kept at 900-950° C. for 1 hour to make the aluminum alloy melt with macroscopic and uniform property.
(155) (3) Deslagging and Degassing Process
(156) Add the alloy melt obtained in the step (2) to the antifoaming agent to carry out the degassing and slag-removing treatment and homogenizing the alloy melt. The main components of antifoaming agent mentioned in step (3) is polyether modified silicon, and the adding amount is 1.0 wt. % of the total weight of alloy melted in the step (2).
(157) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(158) The metal oxide was preheated at 250° C. for 2 hour and the alloy melt was cooled to 690° C. Thereafter, the metal oxide was added to the alloy melt and cooled to 690° C., sufficiently stirred, and held at 850-900° C. for 1 hour;
(159) (5) Casting and Cooling
(160) Cast the alloy melt obtained in the step (4) into a preheated mold; and then cooling the casting to the room temperature together with the mold to obtain a high-strength soluble aluminum alloy work-piece.
Example 14
(161) The present invention provides a high-strength soluble aluminum alloy. The raw material of the high-strength soluble aluminum alloy includes: aluminum, a functional metal, and a metal oxide. The adding amount of said aluminum and functional metal is 61.79 wt. % of aluminum and 38.2 wt. % of functional mental. The adding amount of metal oxide is about 0.01 wt. %.
(162) The proportion of the functional metal is 0.1 wt. % of Sn, 5 wt. % of Si, 10 wt. % of Mn, 5 wt. % of Mg, 0.1 wt. % of Ga, 10 wt. % of In, and 8 wt. % of Zn.
(163) The metal oxides are nickel oxide (NiO) and vanadium pentoxide (V.sub.2O.sub.5). The weight ratio of nickel oxide (NiO) and vanadium pentoxide (V.sub.2O.sub.5) is 1:1.
(164) The preparation method for high-strength soluble aluminum alloy comprises the following steps:
(165) (1) Smelt the Aluminum Matrix at High Temperature
(166) Put the aluminum ingot into a melting furnace, heating to 660-700° C. to fuse into molten aluminum;
(167) (2) Add Functional Metal, Aluminum Matrix Fuse to Form Aluminum Alloy; Step (2) Includes the Steps of Mass Proportion, Melting and Stirring Process.
(168) The functional metal is added into the aluminum melt by weight percent in the step (1). The mixture shall be sufficiently stirred and kept at 660-700° C. for 2 hour to make the aluminum alloy melt with macroscopic and uniform property.
(169) (3) Deslagging and Degassing Process
(170) Add the alloy melt obtained in the step (2) to the antifoaming agent to carry out the degassing and slag-removing treatment and homogenizing the alloy melt. The main components of antifoaming agent mentioned in step (3) is polyether modified silicon, and the adding amount is 0.5 wt. % of the total weight of alloy melted in the step (2).
(171) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(172) The metal oxide was preheated at 300° C. for 1 hour and the alloy melt was cooled to 680° C. Thereafter, the metal oxide was added to the alloy melt and cooled to 680° C., sufficiently stirred, and held at 900-950° C. for 2 hour;
(173) (5) Casting and Cooling
(174) Cast the alloy melt obtained in the step (4) into a preheated mold; and then cooling the casting to the room temperature together with the mold to obtain a high-strength soluble aluminum alloy work-piece.
Example 15
(175) The present invention provides a high-strength soluble aluminum alloy. The raw material of the high-strength soluble aluminum alloy includes: aluminum, a functional metal, and a metal oxide. The adding amount of said aluminum and functional metal is 68 wt. % of aluminum and 29 wt. % of functional mental. The adding amount of metal oxide is about 3 wt. %.
(176) The proportion of the functional metal is 1 wt. % of Sn, 4 wt. % of Si, 3 wt. % of Mn, 5 wt. % of Mg, 7 wt. % of Ga, 5 wt. % of In, and 4 wt. % of Zn.
(177) The oxide is silicon dioxide (SiO.sub.2).
(178) The preparation method for high-strength soluble aluminum alloy comprises the following steps:
(179) (1) Smelt the Aluminum Matrix at High Temperature
(180) Put the aluminum ingot into a melting furnace, heating to 900-1000° C. to fuse into molten aluminum;
(181) (2) Add Functional Metal, Aluminum Matrix Fuse to Form Aluminum Alloy; Step (2) Includes the Steps of Mass Proportion, Melting and Stirring Process.
(182) The functional metal is added into the aluminum melt by weight percent in the step (1). The mixture shall be sufficiently stirred and kept at 950-1000° C. for 1 hour to make the aluminum alloy melt with macroscopic and uniform property.
(183) (3) Deslagging and Degassing Process
(184) Add the alloy melt obtained in the step (2) to the antifoaming agent to carry out the degassing and slag-removing treatment and homogenizing the alloy melt. The main components of antifoaming agent mentioned in step (3) is polyether modified silicon, and the adding amount is 1.0 wt. % of the total weight of alloy melted in the step (2).
(185) (4) Add Metallic Oxides Into the Aluminum Alloy Melt to Form Dispersion-Reinforced Phas
(186) The metal oxide was preheated at 300° C. for 1 hour and the alloy melt was cooled to 680° C. Thereafter, the metal oxide was added to the alloy melt and cooled to 680° C., sufficiently stirred, and held at 950-1000° C. for 0.5 hour;
(187) (5) Casting and Cooling
(188) Cast the alloy melt obtained in the step (4) into a preheated mold; and then cooling the casting to the room temperature together with the mold to obtain a high-strength soluble aluminum alloy work-piece.
Example 16
(189) The present invention provides a high-strength soluble aluminum alloy. The raw material of the high-strength soluble aluminum alloy includes: aluminum, a functional metal, and a metal oxide. The adding amount of said aluminum and functional metal is 98 wt. % for aluminum. The adding amount of functional mental and metal oxide is about 2 wt. %.
(190) Includes 0.1 wt. % of Sn, 0 wt. % of Si, 0.1 wt. % of Mn, 0 wt. % of Mg, 0.1 wt. % of Ga, 0.1 wt. % of In, and 0 wt. % of Zn.
(191) The metal oxides are nickel oxide (NiO) and manganese dioxide (MnO.sub.2), with the weight percentage of 1.6%. The weight ratio of nickel oxide (NiO) and manganese dioxide (MnO.sub.2) is 1:1.
(192) According to the preparation method of example 1, we can have high-strength soluble aluminum alloy.
Example 17
(193) The present invention provides a high-strength soluble aluminum alloy. The raw material of the high-strength soluble aluminum alloy includes: aluminum, a functional metal, and a metal oxide. The adding amount of said aluminum and functional metal is 99 wt. % for aluminum. The adding amount of functional mental and metal oxide is about 1 wt. %.
(194) Includes 0.2 wt. % of Sn, 0.1 wt. % of Si, 0.2 wt. % of Mn, 0 wt. % of Mg, 0.1 wt. % of Ga, 0.1 wt. % of In, and 0.1 wt. % of Zn.
(195) The metal oxides are nickel oxide (NiO), with the weight percentage of 0.2%.
(196) According to the preparation method of example 1, we can have high-strength soluble aluminum alloy.
(197) TABLE-US-00001 TABLE 1 Test results for high-strength soluble aluminum alloy provided in Examples 1 to 17. Compressive Bending strength Dissolution strength (MPa) (MPa) rate (mm/h) Example 1 366 831 1.78 Example 2 394 815 0.58 Example 3 351 799 0.83 Example 4 316 817 1.51 Example 5 276 721 2.39 Example 6 246 689 2.52 Example 7 234 673 2.6 Example 8 123 311 3.03 Example 9 156 338 2.82 Example 10 210 400 3.84 Example 11 201 513 4.01 Example 12 73 337 1.2 Example 13 133 314 2.27 Example 14 165 326 1.44 Example 15 187 396 1.06 Example 16 263 591 1.28 Example 17 211 462 1.36
(198) As can be seen from the test results in Table 1, the present invention provides a high-strength soluble aluminum alloy having high compressive and flexural strength and a faster dissolution rate. In particular, the high-strength soluble aluminum alloys provided in Examples 1 to 4 have higher compressive strength and flexural strength as well as a suitable dissolution rate.
(199) The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Variations and modifications in accordance with the present invention are intended to be within the scope of the present invention.