CN112899536A - High-strength aluminum alloy round pipe - Google Patents
High-strength aluminum alloy round pipe Download PDFInfo
- Publication number
- CN112899536A CN112899536A CN202011051229.XA CN202011051229A CN112899536A CN 112899536 A CN112899536 A CN 112899536A CN 202011051229 A CN202011051229 A CN 202011051229A CN 112899536 A CN112899536 A CN 112899536A
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- strength
- alloy round
- round
- finished product
- 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.)
- Pending
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 25
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 239000010936 titanium Substances 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 239000011777 magnesium Substances 0.000 claims abstract 4
- 239000011701 zinc Substances 0.000 claims abstract 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052802 copper Inorganic materials 0.000 claims abstract 2
- 229910052742 iron Inorganic materials 0.000 claims abstract 2
- 229910052749 magnesium Inorganic materials 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims abstract 2
- 239000002184 metal Substances 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims abstract 2
- 229910052725 zinc Inorganic materials 0.000 claims abstract 2
- 239000000047 product Substances 0.000 claims description 19
- 238000003723 Smelting Methods 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 238000007670 refining Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000005488 sandblasting Methods 0.000 claims description 7
- UYVVPOTVRSGDSX-UHFFFAOYSA-L [Cr](=O)(=O)(O)O.[P] Chemical compound [Cr](=O)(=O)(O)O.[P] UYVVPOTVRSGDSX-UHFFFAOYSA-L 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000004580 weight loss Effects 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims 3
- 239000000956 alloy Substances 0.000 claims 3
- 208000016261 weight loss Diseases 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000005266 casting Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000011572 manganese Substances 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- 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
- 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
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- 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
Abstract
The invention discloses a high-strength aluminum alloy round tube, which relates to a round tube and is particularly manufactured by casting high-strength aluminum alloy, wherein the high-strength aluminum alloy comprises the following chemical metal content ratios: silicon Si: 0.75% -0.80%, magnesium Mg: 0.84% -0.88%, Fe: 0.18% -0.35%, Mn: 0.25% -0.30%, Cu: 0.38% -0.50%, zinc Zn: < 0.15%, titanium TI: 0.020% -0.030%, others: 0.05% of each, 0.10% in total, and the balance of Al. The high-hardness effect of the aluminum alloy round pipe is achieved through proportioning, experiments and measurement of all materials, and the problems that strength of some aluminum alloy round pipes in the market is generally eight to ten, the aluminum alloy round pipes are not suitable for high emerging technology industries and structural building engineering, force generated by some researched and developed technology products and individual building structures cannot be borne, development and progress of the society are influenced, and therefore the aluminum alloy round pipes with higher hardness are needed are solved.
Description
Technical Field
The invention relates to a round pipe, in particular to a high-strength aluminum alloy round pipe.
Background
The aluminum alloy pipe is a neotype environmental protection product, and it is with slick and sly self outward appearance, and the formula of opening is spread row formula, more and more receives people's favor, and circular rectangular links up perpendicularly, and the lines is smooth, ventilates, is applicable to subway station, high-speed railway station, airport, shopping mall etc..
At present, the strength of some aluminum alloy round pipes in the market is generally eight to ten degrees of hardness, the hardness is not suitable for high and new scientific and technological industries and structural building engineering at present, the strength generated by developed scientific and technological products and individual building structures cannot be borne, and the development and progress of the society are influenced, so that the aluminum alloy round pipes with higher hardness are needed to promote the development and progress of the society, and therefore, under the promotion of market demands, the high-strength aluminum alloy round pipes are invented.
Disclosure of Invention
The invention aims to provide a high-strength aluminum alloy round pipe to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-strength aluminum alloy round pipe is manufactured by the following steps:
primary casting:
a, preparing required materials according to the following proportion, namely silicon and Si%: 0.75-0.80, Mg%: 0.84-0.88, Fe%: 0.18-0.35, manganese and Mn%: 0.25-0.30, Cu%: 0.38-0.50, Zn%: < 0.15, titanium TI%: 0.020-0.030, others: 0.05 for each, 0.10 for the total, and the balance of Al;
b, putting the aluminum into a smelting furnace for smelting, after the aluminum is molten, putting the aluminum into the smelting furnace for smelting and stirring according to the sequence of firstly lumpy materials and then powdery materials, and then removing the waste materials in the molten solution to obtain a material;
c, cooling and standing the obtained material for a period of time;
d, transferring the well-placed material to a refining furnace for refining;
putting the refined aluminum alloy into an aluminum alloy extruder for extrusion, extruding and forming through an extrusion process, discharging, and cooling to obtain a semi-finished circular tube product;
the obtained semi-finished product needs sand blasting and oxidation, then hole sealing treatment is carried out on the round tube semi-finished product by using a nitrate-free presoaked phosphorus chromic acid weight loss method, and finally unqualified products are removed to obtain a finished product;
and (5) taking the finished product out of the warehouse through assembling and packaging.
As a further scheme of the invention: the standing time of the material is about 30 minutes, so that the grain size of the material is controlled within two levels, and the material is uniform in size and free of impurities.
As a still further scheme of the invention: the thickness of the sand blasting and the oxidation film in the step is more than or equal to AA12um, and the treatment value of the nitrate-free presoaking phosphorus chromic acid weight loss method in the hole sealing treatment is set to be less than 30mg/dm 2.
Compared with the prior art, the invention has the beneficial effects that: the high-hardness aluminum alloy round tube has the advantages that the high-hardness effect of the aluminum alloy round tube is achieved through proportioning, experiments and measurement of all materials and mastering of quenching temperature and quenching time in the extrusion step, and the problems that strength of some aluminum alloy round tubes in the market is generally eight to ten, the aluminum alloy round tubes are not suitable for high emerging technology industries and structural building engineering, force generated by some researched and developed technology products and individual building structures cannot be borne, development and progress of the society are influenced, and therefore the aluminum alloy round tubes with higher hardness are needed are solved.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the embodiment of the invention, the manufacturing steps of the high-strength aluminum alloy round pipe are as follows:
1, primary casting:
1) the required materials were prepared in the following proportions, silicon Si%: 0.75-0.80, Mg%: 0.84-0.88, Fe%: 0.18-0.35, manganese and Mn%: 0.25-0.30, Cu%: 0.38-0.50, Zn%: < 0.15, titanium TI%: 0.020-0.030, others: 0.05 for each, 0.10 for the total, and the balance of Al;
2) putting aluminum into a smelting furnace for smelting, after the aluminum is molten, putting the aluminum into the smelting furnace for smelting and stirring according to the sequence of first block and then powder, and then removing waste materials in the molten solution to obtain a material;
3) then cooling and standing the obtained material for a period of time, wherein the standing time of the material is about 30 minutes, and the standing time of the material is 30 minutes to control the grain size within two levels, and the grain size is uniform without impurities, so that the method is prepared for the subsequent high-quality production process;
4) transferring the well-placed material to a refining furnace for refining, wherein the duration and degree of heating in the refining furnace need to be accurately controlled, and the temperature range in the refining furnace is controlled at 750 ℃;
2, putting the refined aluminum alloy into an aluminum alloy extruder for extrusion, extruding and forming through an extrusion process, and then discharging, wherein the discharging speed is controlled to be 6-15m/min, so that the subsequent rapid cooling is guaranteed, and a semi-finished circular tube product is obtained after cooling;
3, sand blasting and oxidation are needed to be carried out on the semi-finished product obtained in the step 3, the thickness of the sand blasting and the oxidation film in the step 3 is more than or equal to AA12um, the product is qualified only if the thickness of the sand blasting and the oxidation film is more than AA12um, and the treatment value of the nitric acid-free presoaking phosphorus chromic acid weight loss method in the hole sealing treatment is set to be less than 30mg/dm 2; then hole sealing treatment is carried out on the semi-finished round pipe by using a nitrate-free preimpregnated phosphorus chromic acid weight loss method, and finally unqualified products are removed to obtain a finished product;
4 the finished product is delivered out of the warehouse through the assembly package, whether the quality of the product is qualified is checked at first, then the plastic accessory and the circular tube are assembled after the unqualified product is removed, the double-end saw workbench is used for packaging at last, aluminum scraps cannot be generated on the double-end saw workbench during packaging, aluminum scraps cannot be generated in the shrinkage film, the surface of the material is prevented from being scratched, the electrostatic film is used for bundling according to every 10 small bundles, the shrinkage film is an outer package, the wood tray is used for stacking and putting the material neatly after being sawed, the material is wound by the adhesive tape to prevent collapse, so far, the whole high-strength aluminum alloy circular tube is produced, the detected hardness is seventeen to nineteen products, the hardness of some aluminum alloys on the far-market is eight to ten, and the market demand is larger.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention, and the invention is not limited to the details of the foregoing embodiments.
Claims (4)
1. The high-strength aluminum alloy round pipe is characterized by being cast and manufactured by high-strength aluminum alloy, wherein the high-strength aluminum alloy comprises the following chemical metal content ratios:
silicon Si: 0.75% -0.80%, magnesium Mg: 0.84% -0.88%, Fe: 0.18% -0.35%, Mn: 0.25% -0.30%, Cu: 0.38% -0.50%, zinc Zn: < 0.15%, titanium TI: 0.020% -0.030%, others: 0.05% of each, 0.10% in total, and the balance of Al.
2. The round aluminum alloy tube as claimed in claim 1, which is produced by the following steps:
1) firstly putting alloy aluminum into a smelting furnace for smelting, after the alloy aluminum is molten, putting the alloy aluminum into the smelting furnace for smelting and stirring according to the sequence of firstly lumpy and then powdery, and then removing waste materials in the molten solution to obtain a material;
2) then cooling and standing the obtained material for a period of time;
3) transferring the well-placed material to a refining furnace for refining;
4) putting the refined aluminum alloy into an aluminum alloy extruder for extrusion, extruding and forming through an extrusion process, discharging, and cooling to obtain a semi-finished circular tube product;
5) the obtained semi-finished product needs sand blasting and oxidation, then hole sealing treatment is carried out on the round tube semi-finished product by using a nitrate-free presoaked phosphorus chromic acid weight loss method, and finally unqualified products are removed to obtain a finished product;
6) and (5) taking the finished product out of the warehouse through assembling and packaging.
3. A high-strength round aluminum alloy pipe as claimed in claim 2, wherein the standing time of the material is about 30 minutes, the grain size is controlled within two levels, and the material is uniform in size and free of impurities.
4. The high-strength aluminum alloy round pipe as claimed in claim 2, wherein the thickness of the sand blasting and oxide film in step 5) is equal to or greater than AA12um, and the nitrate-free presoaked phosphorus chromic acid weight loss treatment value in the sealing treatment is set to be < 30mg/dm 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051229.XA CN112899536A (en) | 2020-09-29 | 2020-09-29 | High-strength aluminum alloy round pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051229.XA CN112899536A (en) | 2020-09-29 | 2020-09-29 | High-strength aluminum alloy round pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112899536A true CN112899536A (en) | 2021-06-04 |
Family
ID=76111059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011051229.XA Pending CN112899536A (en) | 2020-09-29 | 2020-09-29 | High-strength aluminum alloy round pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112899536A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058821A (en) * | 2017-03-29 | 2017-08-18 | 江苏江南创佳型材有限公司 | The manufacture method of 6063 aluminium alloy extrusions |
| CN108118210A (en) * | 2017-11-28 | 2018-06-05 | 中铝材料应用研究院有限公司 | A kind of processing method of aluminium alloy and its extrudate |
-
2020
- 2020-09-29 CN CN202011051229.XA patent/CN112899536A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058821A (en) * | 2017-03-29 | 2017-08-18 | 江苏江南创佳型材有限公司 | The manufacture method of 6063 aluminium alloy extrusions |
| CN108118210A (en) * | 2017-11-28 | 2018-06-05 | 中铝材料应用研究院有限公司 | A kind of processing method of aluminium alloy and its extrudate |
Non-Patent Citations (1)
| Title |
|---|
| 王松主编: "《金属材涂层工》", 31 May 2011, 中国建材工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210604 |