CN109226431B - Ultrahigh-strength-toughness aluminum-magnesium alloy and spinning method of pipe thereof - Google Patents
Ultrahigh-strength-toughness aluminum-magnesium alloy and spinning method of pipe thereof Download PDFInfo
- Publication number
- CN109226431B CN109226431B CN201810942705.3A CN201810942705A CN109226431B CN 109226431 B CN109226431 B CN 109226431B CN 201810942705 A CN201810942705 A CN 201810942705A CN 109226431 B CN109226431 B CN 109226431B
- Authority
- CN
- China
- Prior art keywords
- spinning
- deformation
- aluminum
- hot
- magnesium alloy
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
-
- 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 an aluminum-magnesium alloy with ultrahigh strength and toughness, which comprises the following components, by mass, 7 7313% of Mg, 0 ~.0% of Mn, 0 ~.5% of Cr, 0 ~.35% of Sc, 0 ~.3% of Zr, 0.005 ~.2% of Ti and 0.0001 ~.01% of Be, and further discloses a spinning method of an aluminum-magnesium alloy pipe with ultrahigh strength and toughness.
Description
Technical Field
The invention relates to the field of aluminum alloy processing, in particular to an aluminum-magnesium alloy with ultrahigh strength and toughness and a spinning method of a pipe thereof.
Background
The aluminum-magnesium alloy is an alloy which is added with metal magnesium in the aluminum alloy, is a non-heat-treatable strengthened aluminum alloy, has the advantages of high specific strength, good weldability, good corrosion resistance and the like, and is widely applied to the fields of aerospace, transportation, petrochemical industry, rail transit, consumer electronics and the like. The addition amount of magnesium element in the aluminum-magnesium alloy in the prior industry is generally not more than 7 percent, and the alloy belongs to medium-strength alloy, and the strength range is generally 380 to 420 MPa. At present, the plastic deformation of the aluminum-magnesium alloy with high magnesium content is difficult, cracking, brittle failure and the like are easy to occur, and the aluminum-magnesium alloy cannot be applied to actual production.
Disclosure of Invention
In view of the disadvantages of the prior art, one of the objects of the present invention is to provide an aluminum-magnesium alloy with ultra-high strength and toughness, which has the following advantages: the magnesium content is high, the strength of the prepared aluminum-magnesium alloy is high, and the plastic deformation is easy.
The technical purpose of the invention is realized by the following technical scheme:
an aluminum-magnesium alloy with ultrahigh strength and toughness comprises the following components in percentage by mass:
mg: 7-13%; mn: 0 to 1.0 percent; cr: 0 to 0.5 percent; and (C) Sc: 0 to 0.35 percent; zr: 0 to 0.3 percent; ti: 0.005-0.2%; be: 0.0001 to 0.01 percent; the remainder consists of aluminum and inevitable impurity elements thereof.
The invention also aims to provide a spinning method of the aluminum-magnesium alloy pipe with ultrahigh strength and toughness, which has the advantages that: in the preparation process, the plastic deformation of the alloy is easy, and the requirement of high-strength aluminum-magnesium alloy pipes in production and life can be met.
The technical purpose of the invention is realized by the following technical scheme:
a spinning method of an aluminum-magnesium alloy pipe with ultrahigh strength and toughness comprises the following steps:
s1: solution heat treatment, namely, preserving the heat of the hollow cast ingot made of the aluminum-magnesium alloy components for 10 to 36 hours at the temperature of 350 to 420 ℃, then raising the temperature to 580 to 630 ℃, preserving the heat for 10 to 24 hours, and then quenching the hollow cast ingot;
s2: the hot spinning process comprises the following steps: setting the preheating temperature of a mandrel of a spinning machine to be 260 +/-10 ℃, preserving the temperature of the hollow cast ingot obtained in S1 at 350-420 ℃ for 30 min-1 h, carrying out hot spinning deformation, wherein the deformation of each hot spinning is 15-35%, and carrying out intermediate annealing treatment at 350-420 ℃ for 30 min-1 h between passes to obtain a hot spinning tube blank;
s3: heat treatment of the hot-spinning tube blank: preserving the heat of the hot-rolled tube blank obtained in the step S2 at the temperature of 500 +/-20 ℃ for 30min to 1.5h, and then cooling the hot-rolled tube blank to the room temperature in the air;
s4: machining: machining the inner side surface and the outer side surface of the hot-rolled tube blank;
s5: cold deformation of the tube blank: and (3) carrying out cold deformation treatment on the machined pipe blank to obtain the aluminum-magnesium alloy pipe with ultrahigh strength and toughness.
According to the technical scheme, the high-magnesium-content tubular casting blank with a fine microstructure and no shrinkage porosity and thermal cracking defects can be obtained, the components of the high-magnesium-content casting blank can be distributed more uniformly through double-stage solution treatment, the thickness of the casting blank wall can be reduced through hot spinning, and the mechanical property can be improved through further cold deformation.
The invention is further configured to: the preparation method of the hollow ingot in the S1 comprises the following steps: an aluminum-magnesium alloy according to any one of claims 1 to 2, wherein the aluminum-magnesium alloy is obtained by subjecting the element to a rotary crystallization to obtain a hollow material, and machining the inner and outer sides and both end faces of the hollow material.
The invention is further configured to: and the cooling mode of the hollow ingot casting in the S1 is water quenching.
The invention is further configured to: and the total deformation amount of the hot spinning in the S2 is 60-85%.
The invention is further configured to: the cold deformation in S5 is cold drawing deformation, the drawing rate of the cold drawing is 1-10 m/min, and the secondary processing rate of each die is 5-25%.
The invention is further configured to: the cold deformation in the step S5 is cold spinning deformation, and the cumulative cold spinning deformation is 5-15%.
In conclusion, the invention has the following beneficial effects:
by improving the content of magnesium in the alloy and aiming at the spinning preparation method of the alloy for manufacturing the pipe, the aluminum-magnesium alloy pipe with ultrahigh strength and toughness can be provided, the strength of the pipe is improved, the plasticity is improved, the pipe is not easy to crack, brittle fracture and the like in the production process, and the requirements of production and life on the high-strength aluminum-magnesium alloy pipe can be met.
Detailed Description
Example 1
An aluminum-magnesium alloy with ultrahigh strength and toughness comprises the following components in percentage by mass:
mg: 7%, Mn: 0.6%, Sc: 0.15%, Ti: 0.1%, Be: 0.005 percent, and the balance of Al and inevitable impurity elements, wherein the inevitable impurity elements comprise less than or equal to 0.1 percent of Fe and less than or equal to 0.05 percent of Si.
Example 2
An aluminum-magnesium alloy with ultrahigh strength and toughness comprises the following components in percentage by mass:
mg: 12%, Mn: 0.4%, Zr: 0.2%, Ti: 0.1%, Be: 0.005 percent, and the balance of Al and inevitable impurity elements, wherein the inevitable impurity elements comprise less than or equal to 0.1 percent of Fe and less than or equal to 0.05 percent of Si.
Example 3
A spinning method of an aluminum-magnesium alloy pipe comprises the following steps:
s0: the alloy in example 1 was used to prepare a hollow ingot by a rotary crystallization method, specifically as follows:
adding the alloy melt into a rotary casting machine, adjusting the gravity coefficient G to 183, and preparing a hollow blank through rotary crystallization;
then boring the inner side surface of the hollow blank by 5mm, turning the outer side surface by 5mm, milling two end surfaces, and preparing to form a hollow cast ingot after machining;
s1: performing two-stage solution heat treatment, namely putting the hollow cast ingot machined in the step S0 into a heat treatment furnace with the furnace temperature of 350 ℃, preserving heat for 12 hours, raising the temperature to 620 ℃, preserving heat for 24 hours, and then quenching the hollow cast ingot;
s2: the hot spinning process comprises the following steps: setting the preheating temperature of a mandrel of a spinning machine to be 260 +/-10 ℃, placing the hollow cast ingot obtained in the step S1 into a heat treatment furnace with the furnace temperature of 350 ℃, preserving the heat for 30min, then carrying out hot spinning deformation, wherein the deformation of each pass of hot spinning is 30%, carrying out 30 min-350 ℃ intermediate annealing treatment between passes, and the cumulative deformation of the hot spinning is 63%;
s3: heat treatment of the hot-spinning tube blank: putting the hot-rolled tube blank obtained in the step S2 into a heat treatment furnace with the furnace temperature of 500 +/-20 ℃ for heat preservation for 30min, and then air-cooling to room temperature;
s4: machining: machining the inner side and the outer side of the hot-rolled tube blank in the step S3 to eliminate surface unevenness caused by hot rolling;
s5: cold deformation of the tube blank: and (4) performing cold drawing deformation treatment with the drawing rate of 8m/min and the secondary working rate of 25% per die on the tube blank machined in the step (S4), and then performing annealing treatment and reshaping treatment at 250 ℃ for 1h to obtain a target product.
Example 4:
a spinning method of an aluminum-magnesium alloy pipe, which was carried out in the same manner as in example 3, except that:
s1: and (4) double-stage solution heat treatment, namely putting the hollow cast ingot machined in the step S0 into a heat treatment furnace with the furnace temperature of 350 ℃, preserving heat for 10 hours, raising the temperature to 580 ℃, preserving heat for 10 hours, and then quenching the hollow cast ingot.
S2: the hot spinning process comprises the following steps: in the hot spinning deformation process, the deformation of each pass of hot spinning is 15%, intermediate annealing treatment is carried out between passes for 30min at 350 ℃, and the accumulated deformation of the hot spinning is 63%;
s5: the drawing rate of cold deformation was 1m/min, and the working ratio per pass was 5%.
Example 5:
a spinning method of an aluminum-magnesium alloy pipe, which was carried out in the same manner as in example 3, except that:
s1: and (4) solution heat treatment, namely putting the hollow ingot machined in the step S0 into a heat treatment furnace with the furnace temperature of 385 ℃ for heat preservation for 23 hours, then raising the temperature to 605 ℃, preserving the heat for 17 hours, and then quenching the hollow ingot.
S2: the hot spinning process comprises the following steps: setting the preheating temperature of a mandrel of a spinning machine to be 260 +/-10 ℃, putting the hollow cast ingot obtained in the step S1 into a heat treatment furnace with the furnace temperature of 385 ℃, preserving the heat for 45min, then carrying out hot spinning deformation, wherein the deformation of each pass of hot spinning is 25%, carrying out intermediate annealing treatment at 45min and 385 ℃ between passes, and the accumulated deformation of the hot spinning is 63%;
s3: heat treatment of the hot-spinning tube blank: putting the hot-rolled tube blank obtained in the step S2 into a heat treatment furnace with the furnace temperature of 500 +/-20 ℃ for heat preservation for 1h, and then air-cooling to room temperature;
s5: the drawing rate of cold deformation was 5m/min, and the working ratio per pass was 15%.
Example 6:
a spinning method of an aluminum-magnesium alloy pipe, which was carried out in the same manner as in example 3, except that:
s1: and (4) solution heat treatment, namely putting the hollow ingot machined in the step S0 into a heat treatment furnace with the furnace temperature of 420 ℃, preserving heat for 36h, then raising the temperature to 630 ℃, preserving heat for 24h, and then quenching the hollow ingot.
S2: the hot spinning process comprises the following steps: setting the preheating temperature of a mandrel of a spinning machine to be 260 +/-10 ℃, placing the hollow cast ingot obtained in the step S1 into a heat treatment furnace with the furnace temperature of 420 ℃, preserving the heat for 1h, performing hot spinning deformation, wherein the deformation of each hot spinning is 35%, performing intermediate annealing treatment at 1h and 420 ℃ between passes, and the cumulative deformation of the hot spinning is 63%;
s3: heat treatment of the hot-spinning tube blank: putting the hot-rolled tube blank obtained in the step S2 into a heat treatment furnace with the furnace temperature of 500 +/-20 ℃ for heat preservation for 1.5h, and then air-cooling to room temperature;
s5: the cold deformation was conducted at a drawing rate of 10m/min and a working ratio per one pass of 25%.
Example 7:
this example was carried out in accordance with the preparation process of example 3, except that,
and S5, cold spinning deformation is selected for cold spinning deformation, the rotating speed during cold spinning deformation is 100r/min, and the accumulated deformation during cold spinning deformation is 10%.
Example 8
A spinning method of an aluminum-magnesium alloy pipe is carried out in the same manner as in example 3, except that,
in S0, the alloy melt of example 2 was used to prepare a hollow material by a rotational crystallization method, wherein G, the gravity coefficient during the rotational crystallization was 90;
in S1, the hollow ingot is subjected to heat preservation for 24 hours in a heat treatment furnace with the furnace temperature of 420 ℃, and then the temperature is raised to 600 ℃ and is preserved for 24 hours;
s2, placing the hollow cast ingot into a heat treatment furnace with the furnace temperature of 420 ℃ for heat preservation for 1h, carrying out hot spinning deformation, wherein the deformation of each hot spinning is 23%, carrying out intermediate annealing treatment at the temperature of 420 ℃ for 1h between passes, and the accumulated deformation of the hot spinning is 85%;
s3, putting the hot coil blank into a heat treatment furnace with the furnace temperature of 500 +/-20 ℃ for heat preservation for 1 h;
and S5, cold spinning deformation is selected for cold deformation treatment, the rotating speed during cold spinning deformation is 300r/min, and the accumulated deformation is 15%.
And (3) performance testing:
the performance test result of the aluminum-magnesium alloy pipe with ultrahigh strength and toughness is as follows:
| performance parameter | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Example 8 |
| Tensile strength/MPa | 450 | 480 | 520 | 580 | 460 | 600 |
| Yield strength/MPa | 380 | 400 | 440 | 500 | 390 | 520 |
| Elongation after Break (%) | 30 | 17 | 15 | 12 | 28 | 10 |
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (6)
1. A spinning method of an aluminum-magnesium alloy pipe with ultrahigh strength and toughness is characterized by comprising the following steps:
s1, double-stage solution heat treatment, namely, keeping the temperature of the hollow ingot at 350 ~ 420 ℃ for 10 ~ 36h, then raising the temperature to 580 ~ 630 ℃ and keeping the temperature for 10 ~ 24h, and then quenching the hollow ingot, wherein the aluminum-magnesium alloy used by the hollow ingot comprises the following components, by mass, 7 ~ 13% of Mg, 0 ~ 1.0.0% of Mn, 0 ~ 0.5.5% of Cr, 0 ~ 0.35.35% of Sc, 0 ~ 0.3.3% of Zr, 0.005 ~ 0.2.2% of Ti, 0.0001. 0.0001 ~ 0.01.01% of Be, and the balance of aluminum and inevitable impurity elements;
s2, hot spinning, namely, preserving the heat of the hollow cast ingot obtained in the S1 at 350 ~ 420 ℃ for 30min ~ 1h, carrying out hot spinning deformation, wherein the deformation of each pass of hot spinning is 15 ~ 35%, and carrying out intermediate annealing treatment at 30min ~ 1h and 350 ~ 420 ℃ between passes to obtain a hot-spun tube blank;
s3, heat treatment of the hot-screwed pipe blank, namely, the hot-screwed pipe blank obtained in the step S2 is kept at the temperature of 500 +/-20 ℃ for 30min ~ 1.5.5 h, and then air cooling is carried out to the room temperature;
s4: machining: machining the inner side surface and the outer side surface of the hot-rolled tube blank;
s5: cold deformation of the tube blank: and (3) carrying out cold deformation treatment on the machined pipe blank to obtain the aluminum-magnesium alloy pipe with ultrahigh strength and toughness.
2. The spinning method of the aluminum-magnesium alloy pipe with ultrahigh strength and toughness as claimed in claim 1, wherein the preparation method of the hollow ingot in S1 comprises the following steps: the aluminum-magnesium alloy is obtained by processing hollow blanks obtained by rotary crystallization through inner and outer side and two end face machines.
3. The method for spinning an ultra-high strength and toughness aluminum-magnesium alloy pipe as recited in claim 1, wherein the cooling of said S1 hollow ingot is water quenching.
4. The method of spinning an Al-Mg system alloy pipe with ultrahigh toughness of claim 1, wherein the total deformation amount of the hot spinning deformation in S2 is 60 ~ 85%.
5. The method of spinning an Al-Mg system alloy pipe with ultra-high toughness as claimed in claim 1, wherein the cold deformation in S5 is cold drawing deformation, the drawing rate of cold drawing is 1 ~ 10m/min, and the secondary working rate per die is 5 ~ 25%.
6. The method of spinning an Al-Mg alloy tube with ultra-high toughness as claimed in claim 1, wherein the cold flow forming in S5 is cold flow forming, the spinning speed is 50 ~ 500r/min, and the cumulative deformation of the cold flow forming is 5 ~ 15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942705.3A CN109226431B (en) | 2018-08-17 | 2018-08-17 | Ultrahigh-strength-toughness aluminum-magnesium alloy and spinning method of pipe thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810942705.3A CN109226431B (en) | 2018-08-17 | 2018-08-17 | Ultrahigh-strength-toughness aluminum-magnesium alloy and spinning method of pipe thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109226431A CN109226431A (en) | 2019-01-18 |
| CN109226431B true CN109226431B (en) | 2019-12-27 |
Family
ID=65071720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810942705.3A Active CN109226431B (en) | 2018-08-17 | 2018-08-17 | Ultrahigh-strength-toughness aluminum-magnesium alloy and spinning method of pipe thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109226431B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111266476B (en) * | 2020-03-05 | 2021-08-13 | 南昌航空大学 | Method for forming as-cast aluminum alloy cylindrical part |
| CN111590279A (en) * | 2020-06-03 | 2020-08-28 | 福建阿石创新材料股份有限公司 | High-purity metal rotary target material and preparation method thereof |
| CN113042603B (en) * | 2021-03-04 | 2022-09-02 | 西北工业大学 | Forming method of heat-treatable strengthened aluminum alloy thin-wall special-shaped curved surface component |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2113576B1 (en) * | 2007-01-24 | 2018-11-28 | Advanced Alloys GmbH | Method for producing a structural material made of magnesium-containing aluminium-based alloy |
| CN105014304A (en) * | 2014-04-18 | 2015-11-04 | 瑞鸿电通有限公司 | Near net-shape rotary swaging manufacturing method for wheel rim |
| EP3181711B1 (en) * | 2015-12-14 | 2020-02-26 | Apworks GmbH | Aluminium alloy containing scandium for powder metallurgy technologies |
-
2018
- 2018-08-17 CN CN201810942705.3A patent/CN109226431B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109226431A (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104357690B (en) | The preparation technology of strong anti-corrosion high Mg-Al alloy plate in a kind of | |
| CN109226431B (en) | Ultrahigh-strength-toughness aluminum-magnesium alloy and spinning method of pipe thereof | |
| CN103014454B (en) | Production method of 5052-H34 aluminum alloy plate strip | |
| CN105908110B (en) | A kind of method for reducing high strength alumin ium alloy complexity forging part residual stress | |
| US20150184272A1 (en) | Low cost and high strength titanium alloy and heat treatment process | |
| CN113198956B (en) | Forging method of austenitic stainless steel with ultrahigh silicon content | |
| CN104561696A (en) | 5083 aluminum alloy plate for high-speed rail and production method thereof | |
| CN110252918B (en) | Ti for 3D printing powder2Preparation method of AlNb-based alloy bar | |
| CN106636747A (en) | Manufacturing method for producing commercial pure titanium plate by adopting double annealing of heavy and medium plate mill | |
| CN110125317A (en) | A kind of high-strength stainless steel Hot-rolled Rotary forming method | |
| CN104789849A (en) | Material for magnesium alloy doors and windows and production method of material | |
| CN113088817B (en) | Seamless steel tube, preparation method thereof and oil cylinder | |
| CN109097710B (en) | Extrusion method of high-magnesium aluminum alloy pipe | |
| CN112808910B (en) | Forging method for improving percent of pass of large-wall-thickness 5754 aluminum alloy forge piece | |
| CN104233129A (en) | Method for producing high-magnesium aluminum alloy sheets | |
| CN112536406A (en) | Forging drawing method for avoiding surface cracking | |
| KR101630978B1 (en) | Non-heat-treated wire rod having excellent cold workability and method for manufacturing the same | |
| CN106048455B (en) | A kind of processing method of mold materials for high intensity forging | |
| CN112941410A (en) | Method for controlling alpha phase content in austenitic stainless steel | |
| CN112496216A (en) | Forging production process of 30Cr15MoN high-nitrogen martensitic stainless steel bar | |
| CN111471930A (en) | High-strength corrosion-resistant machining process for steel pipe | |
| CN107931337B (en) | Differential temperature rolling method of AlZnMgCu aluminum alloy thick plate | |
| RU2110600C1 (en) | Method for producing articles from zirconium alloys | |
| CN113441665B (en) | Forging method and application of low-direction-sensitivity 7xxx series aluminum alloy | |
| CN114798999B (en) | Fine-grain high-strength plastic Ti80G forging 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 |