CN116065058A - Tin-free aluminum alloy and preparation method and application thereof - Google Patents
Tin-free aluminum alloy and preparation method and application thereof Download PDFInfo
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- CN116065058A CN116065058A CN202310357582.8A CN202310357582A CN116065058A CN 116065058 A CN116065058 A CN 116065058A CN 202310357582 A CN202310357582 A CN 202310357582A CN 116065058 A CN116065058 A CN 116065058A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000956 alloy Substances 0.000 claims abstract description 42
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 41
- 238000005476 soldering Methods 0.000 claims abstract description 23
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 3
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 3
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 3
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 3
- 239000011777 magnesium Substances 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005098 hot rolling Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 claims description 3
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 3
- CYUOWZRAOZFACA-UHFFFAOYSA-N aluminum iron Chemical compound [Al].[Fe] CYUOWZRAOZFACA-UHFFFAOYSA-N 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 2
- 238000005520 cutting process Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000009472 formulation Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 14
- 229910001069 Ti alloy Inorganic materials 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 239000002969 artificial stone Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000035882 stress Effects 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- 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
-
- 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
- C22F1/05—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 of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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)
- Metal Rolling (AREA)
Abstract
The invention discloses a tin-free aluminum alloy, a preparation method thereof and application of the aluminum alloy in manufacturing wave-soldering jigs, and belongs to the technical field of special alloys. The tin-free aluminum alloy comprises the following components in percentage by weight: 85.6 to 93.1 percent of Al, 3.0 to 8.0 percent of M alloy, 0.9 to 1.5 percent of Mg, 1.0 to 2.0 percent of Ti, 0.8 to 1.5 percent of Si, 0.8 to 1.5 percent of Fe, and less than or equal to 0.2 percent of impurity, wherein the M alloy consists of 30.0 to 50.0 percent of La and 50.0 to 70.0 percent of Ce. The invention has the advantages that: the aluminum alloy is non-adhesive with tin liquor, excellent in cutting processability, low in high-temperature deformation rate and stable in performance, the manufacturing cost of the wave-soldering jig manufactured by the aluminum alloy is low, the processing difficulty is small, the service life of the manufactured wave-soldering jig is long, and the wave-soldering jig can be recycled after being scrapped.
Description
Technical Field
The invention relates to an aluminum alloy and a preparation method and application thereof, in particular to a tin-free aluminum alloy and a preparation method thereof and application of the aluminum alloy in manufacturing wave soldering jigs, and belongs to the technical field of special alloys.
Background
The synthetic stone and the titanium alloy have the characteristic of non-adhesion of the tin liquid, so the wave soldering jig is generally manufactured by the synthetic stone or the titanium alloy. However, the wave soldering jig manufactured by the synthetic stone has short service life, and can not be recycled after being scrapped, so that the wave soldering jig causes great environmental pollution. The wave soldering jig manufactured by the titanium alloy has high manufacturing cost, and greatly improves the production cost of enterprises. In addition, the titanium alloy has poor cutting processability and high-temperature deformation rate, so the titanium alloy is used for manufacturing the wave soldering jig, and the problem of high processing difficulty is also caused.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide the aluminum alloy plate which is not adhered to tin liquid, has excellent cutting processability, low high-temperature deformation rate and stable performance, can be used for manufacturing the wave-soldering jig, and the wave-soldering jig manufactured by using the aluminum alloy plate (compared with the wave-soldering jig manufactured by using titanium alloy) has lower manufacturing cost and lower processing difficulty, and the wave-soldering jig manufactured by using synthetic stone has longer service life and can be recycled after scrapping.
In order to achieve the above object, the present invention adopts the following technical scheme:
the tin-free aluminum alloy comprises the following components in percentage by weight:
85.6 to 93.1 percent of Al, 3.0 to 8.0 percent of M alloy, 0.9 to 1.5 percent of Mg, 1.0 to 2.0 percent of Ti, 0.8 to 1.5 percent of Si, 0.8 to 1.5 percent of Fe, and less than or equal to 0.2 percent of impurity, wherein the M alloy consists of 30.0 to 50.0 percent of La and 50.0 to 70.0 percent of Ce.
Preferably, the tin-free aluminum alloy consists of the following components:
93.1% of Al, 3.0% of M alloy, 0.9% of Mg, 1.0% of Ti, 0.8% of Si, 1.0% of Fe and 0.2% of total impurities, wherein the M alloy consists of 45% of La and 55% of Ce;
or alternatively, it is composed of the following components:
90.0% of Al, 5.0% of M alloy, 1.5% of Mg, 1.5% of Ti, 1.0% of Si, 0.8% of Fe and 0.2% of total impurities, wherein the M alloy consists of 45% of La and 55% of Ce;
or, still alternatively, consists of the following components:
85.6% of Al, 8.0% of M alloy, 1.2% of Mg, 2.0% of Ti, 1.5% of Si, 1.5% of Fe and 0.2% of total impurities, wherein the M alloy consists of 45% of La and 55% of Ce.
The preparation method of the tin-free aluminum alloy comprises the following steps:
step1: adding aluminum ingot, aluminum-titanium intermediate alloy, aluminum-silicon intermediate alloy and aluminum-iron intermediate alloy into a resistance furnace according to a certain proportion, heating to 750 ℃ to melt all metals, and then degassing and deslagging for 3-5 min;
step2: after the temperature is reduced to 700 ℃, pressing a magnesium block into the bottom of the aluminum alloy melt by using a bell jar, and stirring for 3min after the magnesium block is melted;
step3: heating to 720 ℃ to enable the M alloy to be changed into blocks, pressing the block-shaped M alloy into the bottom of the aluminum alloy melt by using a bell jar, and stirring for 3min after the M alloy is melted;
step4: adding 5-10% of a return furnace cold material into the aluminum alloy melt, then degassing and deslagging for 3-5 min, and skimming upper-layer oxidized scum;
step5: keeping the aluminum alloy melt at 720 ℃, casting the blank, cooling the steel mould at 180 ℃ in a water-cooling way;
step6: the blank is hot rolled into an aluminum alloy plate, and the hot rolling process is specifically as follows:
hot rough rolling temperature: 420-500 ℃;
hot finish rolling temperature: 350-400 ℃;
start rolling temperature: 350-380 ℃;
finishing temperature: 250-300 ℃.
The non-tin-adhering aluminum alloy and the weak acid corrosion resistant non-tin-adhering aluminum alloy are applied to manufacturing wave soldering jigs.
The invention has the advantages that:
(1) According to the invention, the M alloy is added into the aluminum alloy, so that the aluminum alloy has the characteristic of non-adhesion with tin, and the high-temperature resistance of the aluminum alloy can be improved;
(2) According to the invention, mg is added into the aluminum alloy, so that the corrosion resistance of the aluminum alloy can be improved, and a compact weak acid corrosion resistant oxide film can be formed by combining the Mg with the M alloy, so that the weak acid corrosion resistance of the aluminum alloy is improved; in addition, mg is also helpful for forming a fine dispersion phase and preventing recrystallization during hot working and heat treatment;
(3) The Ti is added into the aluminum alloy, so that the effect of compounding and refining metal grains is obvious, the segregation effect can be avoided, the aluminum alloy material is more uniform, the metal element Si can be refined, the growth of the Si grains is inhibited, and the comprehensive mechanical property of the aluminum alloy is improved;
(4) According to the invention, fe is added into the aluminum alloy, so that the high-temperature resistance of the aluminum alloy can be improved, and the high-temperature dimensional deformation rate of the aluminum alloy is obviously reduced;
(5) In the aluminum alloy provided by the invention, si is embedded in the matrix in a tiny particle state, so that the hardness of the aluminum alloy is effectively improved, and the aluminum alloy and the high-temperature deformation rate are reduced;
(6) When the aluminum alloy is manufactured, the aluminum alloy melt is cast in a steel mould at 180 ℃ and cooled by water, so that the prepared aluminum alloy has more tiny crystal grains and more compact and uniform internal structure, and can better eliminate shrinkage cavities and shrinkage porosity of castings caused by natural cooling, thereby further improving the quality of aluminum alloy blanks;
(7) When the aluminum alloy is manufactured, double aging treatment is adopted, so that the stress of the rolled plate is eliminated, and the heat deformation rate of the aluminum plate in a high-temperature state is effectively reduced;
(8) The wave-soldering jig manufactured by the aluminum alloy provided by the invention has lower manufacturing cost (compared with the wave-soldering jig manufactured by the titanium alloy) and longer service life (compared with the wave-soldering jig manufactured by the synthetic stone), can be recycled after scrapping, and has competitive advantages in domestic and foreign markets.
Description of the embodiments
The present invention will be specifically described with reference to the following specific examples.
Examples
(1) Formula of tin-free aluminum alloy
Table 1 formula of tin free aluminum alloy (in mass percent)
| Al | M alloy | Mg | Ti | Si | Fe | Impurity(s) | Totalizing | |
| Formulation 1 | 96.1% | 0.0% | 0.9% | 1.0% | 0.8% | 1.0% | 0.2% | 100.0% |
| Formulation 2 | 95.1% | 1.0% | 0.9% | 1.0% | 0.8% | 1.0% | 0.2% | 100.0% |
| Formulation 3 | 93.1% | 3.0% | 0.9% | 1.0% | 0.8% | 1.0% | 0.2% | 100.0% |
| Formulation 4 | 90.0% | 5.0% | 1.5% | 1.5% | 1.0% | 0.8% | 0.2% | 100.0% |
| Formulation 5 | 85.6% | 8.0% | 1.2% | 2.0% | 1.5% | 1.5% | 0.2% | 100.0% |
| Formulation 6 | 83.6% | 10.0% | 1.2% | 2.0% | 1.5% | 1.5% | 0.2% | 100.0% |
| Formulation 7 | 80.0% | 15.0% | 1.5% | 1.5% | 1.0% | 0.8% | 0.2% | 100.0% |
(2) Preparation method of tin-free aluminum alloy
Adding aluminum ingot, aluminum-titanium intermediate alloy, aluminum-silicon intermediate alloy and aluminum-iron intermediate alloy into the resistance furnace according to a certain proportion, heating to 750 ℃ to melt all metals, and then degassing and deslagging for 3-5 min.
After the temperature is reduced to 700 ℃, pressing a magnesium block into the bottom of the aluminum alloy melt by using a bell jar, and stirring for 3min after the magnesium block is melted.
Heating to 720 ℃ to enable the M alloy to be changed into blocks, pressing the block-shaped M alloy into the bottom of the aluminum alloy melt by using a bell jar, and stirring for 3min after the M alloy is melted.
Adding 5% (up to 10%) of cold material for furnace recovery (promoting grain refinement of aluminum alloy and improving mechanical property) into the aluminum alloy melt, degassing and deslagging for 3-5 min, and skimming upper layer oxidation scum.
The molten aluminum alloy is kept at 720 ℃, the blank is cast, the steel mould temperature is 180 ℃, and the molten aluminum alloy is cooled by water cooling.
Hot rolling the blanks into aluminum alloy sheets, wherein the hot rough rolling temperature is 420 ℃ (up to 500 ℃), the hot finish rolling temperature is 350 ℃ (up to 400 ℃), the starting rolling temperature is 350 ℃ (up to 380 ℃), and the finishing rolling temperature is 250 ℃ (up to 300 ℃).
(3) Tin-passing condition of tin-free aluminum alloy
Spraying or not spraying weak acid soldering flux on the surface of the aluminum alloy prepared in the previous step, immersing the aluminum alloy in tin liquid, and observing whether the aluminum alloy is adhered to the tin liquid.
Table 2 tin-free aluminum alloy tin passing conditions
| Spraying weak acid soldering flux | Non-spraying weak acid soldering flux | |
| Formulation 1 | Bonding | Bonding |
| Formulation 2 | Bonding | Bonding |
| Formulation 3 | Non-sticking | Non-sticking |
| Formulation 4 | Non-sticking | Non-sticking |
| Formulation 5 | Non-sticking | Non-sticking |
| Formulation 6 | Bonding | Bonding |
| Formulation 7 | Bonding | Bonding |
Therefore, the aluminum alloys corresponding to the formulas 3, 4 and 5 have the characteristic of no tin pick-up, so that the three aluminum alloys can be used as wave soldering jigs.
It should be noted that the above-mentioned examples of the present invention are only examples for clearly illustrating the present invention, and are not limiting to the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. Not all embodiments are exhaustive. All obvious changes or modifications which come within the spirit of the invention are desired to be protected.
Claims (5)
1. The tin-free aluminum alloy is characterized by comprising the following components in percentage by weight:
85.6 to 93.1 percent of Al, 3.0 to 8.0 percent of M alloy, 0.9 to 1.5 percent of Mg, 1.0 to 2.0 percent of Ti, 0.8 to 1.5 percent of Si, 0.8 to 1.5 percent of Fe, and less than or equal to 0.2 percent of impurity, wherein the M alloy consists of 30.0 to 50.0 percent of La and 50.0 to 70.0 percent of Ce.
2. The tin free aluminum alloy of claim 1, wherein the tin free aluminum alloy consists of:
93.1% of Al, 3.0% of M alloy, 0.9% of Mg, 1.0% of Ti, 0.8% of Si, 1.0% of Fe and 0.2% of total impurities, wherein the M alloy consists of 45% of La and 55% of Ce;
or alternatively, it is composed of the following components:
90.0% of Al, 5.0% of M alloy, 1.5% of Mg, 1.5% of Ti, 1.0% of Si, 0.8% of Fe and 0.2% of total impurities, wherein the M alloy consists of 45% of La and 55% of Ce;
or, still alternatively, consists of the following components:
85.6% of Al, 8.0% of M alloy, 1.2% of Mg, 2.0% of Ti, 1.5% of Si, 1.5% of Fe and 0.2% of total impurities, wherein the M alloy consists of 45% of La and 55% of Ce.
3. The method for preparing the tin-free aluminum alloy according to claim 1 or 2, comprising the following steps:
step1: adding aluminum ingot, aluminum-titanium intermediate alloy, aluminum-silicon intermediate alloy and aluminum-iron intermediate alloy into a resistance furnace according to a certain proportion, heating to 750 ℃ to melt all metals, and then degassing and deslagging for 3-5 min;
step2: after the temperature is reduced to 700 ℃, pressing a magnesium block into the bottom of the aluminum alloy melt by using a bell jar, and stirring for 3min after the magnesium block is melted;
step3: heating to 720 ℃ to enable the M alloy to be changed into blocks, pressing the block-shaped M alloy into the bottom of the aluminum alloy melt by using a bell jar, and stirring for 3min after the M alloy is melted;
step4: adding 5-10% of a return furnace cold material into the aluminum alloy melt, then degassing and deslagging for 3-5 min, and skimming upper-layer oxidized scum;
step5: keeping the aluminum alloy melt at 720 ℃, casting the blank, cooling the steel mould at 180 ℃ in a water-cooling way;
step6: and hot-rolling the blank into an aluminum alloy plate.
4. A method according to claim 3, wherein in Step6, the hot rolling process is specifically as follows:
hot rough rolling temperature: 420-500 ℃;
hot finish rolling temperature: 350-400 ℃;
start rolling temperature: 350-380 ℃;
finishing temperature: 250-300 ℃.
5. Use of the tin-free aluminum alloy of claim 1 or 2 in the manufacture of wave soldering jigs.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842103A (en) * | 2018-08-17 | 2018-11-20 | 烟台市睿丰新材料科技有限公司 | A kind of low-expansion acieral of high abrasion-proof and high temperature resistant |
| WO2020081150A1 (en) * | 2018-10-17 | 2020-04-23 | Arconic Inc. | Aluminum alloys having iron and rare earth elements |
| US20200407826A1 (en) * | 2019-06-26 | 2020-12-31 | Nemak, S.A.B. De C.V. | Aluminum Casting Alloy, Aluminum Cast Component and Method for the Production of an Aluminum Cast Piece |
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- 2023-04-06 CN CN202310357582.8A patent/CN116065058A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842103A (en) * | 2018-08-17 | 2018-11-20 | 烟台市睿丰新材料科技有限公司 | A kind of low-expansion acieral of high abrasion-proof and high temperature resistant |
| WO2020081150A1 (en) * | 2018-10-17 | 2020-04-23 | Arconic Inc. | Aluminum alloys having iron and rare earth elements |
| US20200407826A1 (en) * | 2019-06-26 | 2020-12-31 | Nemak, S.A.B. De C.V. | Aluminum Casting Alloy, Aluminum Cast Component and Method for the Production of an Aluminum Cast Piece |
Non-Patent Citations (1)
| Title |
|---|
| 罗晓东等: "《家用电器检修技巧与实例》", 湖南科学技术出版社, pages: 250 * |
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Application publication date: 20230505 |