CN106756345A - A kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth - Google Patents
A kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth Download PDFInfo
- Publication number
- CN106756345A CN106756345A CN201611249002.XA CN201611249002A CN106756345A CN 106756345 A CN106756345 A CN 106756345A CN 201611249002 A CN201611249002 A CN 201611249002A CN 106756345 A CN106756345 A CN 106756345A
- Authority
- CN
- China
- Prior art keywords
- coarse grain
- grain ring
- ring depth
- alloy
- alloy extrusion
- 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
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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
-
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
-
- 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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper 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
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
-
- 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
- C22F1/057—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 copper as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Extrusion Of Metal (AREA)
Abstract
Include the invention discloses a kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth, the step of make the alloy extrusion bar：Prepare ingot casting, ingot casting heating, extrusion process, quenching technical；The composition of the ingot casting includes Cr and Zr.In specific experiment, the composition of ingot casting with the addition of Cr and Zr can reduce the coarse grain ring depth of 2A50 alloy extrusion bars, improve the qualification rate of product, reduce economic loss.Therefore, the method for the reduction 2A50 alloy extrusion bar coarse grain ring depth that the present invention is provided, can reduce coarse grain ring depth, improve the qualification rate of product, solve the problem in the field at this stage.
Description
Technical field
The present invention relates to aluminium alloy extruded manufacture field, more specifically, design is a kind of to reduce 2A50 alloy extrusion bars
The method of coarse grain ring depth.
Background technology
In aluminium alloy extruded manufacture field, coarse grain ring depth directly reduces the process based prediction model of product, makes product
Qualification rate declines, or even causes huge economic loss.
For 2A50 alloys, because its it is hot under possess very strong plasticity, be easy to forging punching press the features such as, its extruded rod
Material is commonly used for the forging blank of aerospace field.In order that 2A50 alloy extrusion bars further meet aerospace field
It is required that, its performance need to be improved by reducing the coarse grain ring depth of bar.
For present Research, influenceing the factor of coarse grain ring depth has a lot, such as the component of alloy, squeezing parameter, quenching
Insulation parameter etc..At this stage, the coarse grain ring depth of 2A50 alloy extrusion bars how is reduced, the qualification rate of product is improved, is turned into
The emphasis of the area research.
Therefore, how to reduce coarse grain ring depth, improve the qualification rate of product, be field difficulty urgently to be resolved hurrily at this stage
Topic.
The content of the invention
In view of this, it is an object of the invention to provide a kind of side of reduction 2A50 alloy extrusion bar coarse grain ring depth
Method, the method can reduce coarse grain ring depth, improve the qualification rate of product, solve the problem in the field at this stage.
The step of a kind of method of reduction 2A50 alloy coarse grain ring depth, making 2A50 alloy extrusions bar, includes：
Prepare ingot casting, the composition of the ingot casting includes Cr and Zr；
Ingot casting is heated, using heating ingot casting described in stove heat；
Extrusion process, the ingot casting is extruded using recipient, obtains bar；
Quenching technical, stove heat and is incubated the macrostructure sample of the bar, and obtain thick by inspection using quenching
The qualified 2A50 alloy extrusion bars of brilliant ring depth.
Preferably, the method for the reduction 2A50 alloy extrusion bar coarse grain ring depth, the composition of the ingot casting also includes
Mn。
Preferably, the method for the reduction 2A50 alloy extrusion bar coarse grain ring depth, the accounting of Cr is not in the ingot casting
More than 0.05%.
Preferably, the method for the reduction 2A50 alloy extrusion bar coarse grain ring depth, the accounting of Zr is not in the ingot casting
More than 0.05%.
Preferably, the method for the reduction 2A50 alloy extrusion bar coarse grain ring depth, the accounting of Mn exists in the ingot casting
Between 0.6%-0.8%.
The method of the reduction 2A50 alloy extrusion bar coarse grain ring depth that the present invention is provided, makes the alloy extrusion bar
Step includes：Prepare ingot casting, ingot casting heating, extrusion process, quenching technical；The composition of the ingot casting includes Cr and Zr.Specific
Experiment in, the composition of ingot casting with the addition of Cr and Zr and can reduce the coarse grain ring depth of 2A50 alloy extrusion bars, improve product
Qualification rate, reduce economic loss.Therefore, the method for the reduction 2A50 alloy extrusion bar coarse grain ring depth that the present invention is provided,
Coarse grain ring depth can be reduced, the qualification rate of product is improved, the problem in the field at this stage is solved.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart of making 2A50 alloy extrusion bars in the specific embodiment of the invention.
Specific embodiment
The core of this specific embodiment is to provide a kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth,
The method can reduce coarse grain ring depth, improve the qualification rate of product, solve the problem in the field at this stage.
Hereinafter, embodiment is illustrated referring to the drawings.Additionally, embodiments illustrated below is not to described in claim
The content of the invention rise any restriction effect.In addition, the full content of the composition represented by example below is not limited to as right
It is required that necessary to the solution of described invention.
The method of the reduction 2A50 alloy extrusion bar coarse grain ring depth that this specific embodiment is provided, makes the alloy and squeezes
The step of pressure bar material, mainly includes：Prepare ingot casting, ingot casting heating, extrusion process, quenching technical.2A50 alloys are because possessing under hot
Very strong plasticity, the features such as be easy to forging punching press, and the forging blank of aerospace field is commonly used for, in recent years, with this
The development in field, the demand to 2A50 alloys increases.In order to further improve the performance of the alloy and the qualification rate of product, need
Reduce 2A50 alloy extrusion bar coarse grain ring depth.Please specifically refer to Fig. 1.
For present Research, influenceing the factor of 2A50 alloy extrusion bar coarse grain ring depth mainly includes：The group of ingot casting
Part and content, the temperature of ingot casting, the temperature of recipient, extrusion speed, Quenching Soaking Time.In test, specific data such as table 1
It is shown.In table 1, mark under different parameters, the qualification rate of extruded barses.
The method of the reduction 2A50 alloy extrusion bar coarse grain ring depth that this specific embodiment is provided, by the data of table 1
Analysis understands that on the premise of other conditions are certain, the length of ingot casting does not have significant impact to coarse grain ring depth.
The test data statistical form of table 1
The method of the reduction 2A50 alloy extrusion bar coarse grain ring depth that this specific embodiment is provided, in other conditions one
On the premise of fixed, when Mn contents are respectively 0.61% and 0.63%, and without Cr, Zr in the case of, with 520 DEG C of quenching technical
X240min is defined, and two heats, six batches produce 24 material altogether, wherein 15 qualified, 9 unqualified.When Mn contents difference
It is 0.71%, 0.69% and 0.58%, and in the case of addition Cr, Zr each 0.03%, three heats, six batches produce 28 altogether
Individual material, wherein 25 qualified, 3 unqualified.
In sum, on the premise of quenching technical is 520 DEG C of x240min, and other conditions are certain, high Mn content is carried
Meanwhile, Cr, Zr are added, the depth of coarse grain ring can be to a certain extent reduced, it is possible to increase the qualification rate of product, while reducing
Production cost.In specific operation, the effect of 2A50 alloy coarse grain ring depth, Mn in ingot casting are preferably reduced to reach
Content can be between 0.6%-0.8%, and the content of Cr and Zr is no more than 0.05%.Certainly, the selection of design parameter, can be with
Depending on actual conditions.
The method of the reduction 2A50 alloy coarse grain ring depth that this specific embodiment is provided, in the certain premise of other conditions
Under, during extrusion process, when the temperature of recipient is 450 DEG C, the temperature of ingot casting is 420 DEG C, and extrusion speed is not more than
During 0.2m/min, four batches, 29 material being produced altogether, all being met the requirements, qualification rate is 100%.And from data, at this
Under the conditions of, Quenching Soaking Time has no significant effect to 2A50 alloy coarse grain ring depth.
The method of the reduction 2A50 alloy coarse grain ring depth that this specific embodiment is provided, in the certain premise of other conditions
Under, during extrusion process, when the temperature of recipient is 450 DEG C, the temperature of ingot casting is 420 DEG C, and extrusion speed is not less than
During 0.8m/min, three batches, 11 material are produced altogether, wherein 9 qualified, 2 unqualified.
The method of the reduction 2A50 alloy extrusion bar coarse grain ring depth that this specific embodiment is provided, in other conditions one
On the premise of fixed, during extrusion process, when the temperature of recipient is 490 DEG C, the temperature of ingot casting is 520 DEG C, and extrusion speed
During no more than 0.2m/min, three batches, 12 material are produced altogether, wherein 2 qualified, 10 unqualified.And, in this condition, produce
Product qualification rate is relevant with Quenching Soaking Time, i.e., when Quenching Soaking Time is more long, product it is qualified low；Work as Quenching Soaking Time
When shorter, the qualified height of product.
In sum, on the premise of other conditions are certain, during extrusion process, when the temperature of recipient is 450 DEG C,
The temperature of ingot casting is 420 DEG C, and extrusion speed, when being not more than 0.2m/min, the qualification rate of product is higher, and coarse grain ring depth is obtained
Preferably control.
The method of the reduction 2A50 alloy coarse grain ring depth that this specific embodiment is provided, according to the data in table 1, analysis
Can obtain, when being extruded according to low temperature low speed, Quenching Soaking Time does not have significant impact to coarse grain ring depth；It is low according to high temperature
During speed extruding, Quenching Soaking Time is shorter, and the control effect to coarse grain ring depth is better.
The method of the reduction 2A50 alloy extrusion bar coarse grain ring depth that this specific embodiment is provided, by data above point
Analysis understands that optimal implementation parameter can be that between 0.6%-0.8%, the accounting of Cr and Zr is not for the content of Mn in ingot casting
More than 0.05%；In extrusion process, the temperature of recipient is 450 DEG C, and the temperature of ingot casting is 420 DEG C, and extrusion speed is little
When 0.2m/min, the qualification rate of product is higher, and coarse grain ring depth can be controlled preferably.Certainly, specifically implementing
In, further extrusion speed can be tested, such as improve extrusion speed in certain limit.
The method of the reduction 2A50 alloy extrusion bar coarse grain ring depth that this specific embodiment is provided, if according to this technique
Gone into operation, when feeding intake 49.448 tons, can be delivered goods 39.259 tons, i.e., yield rate is up to 71.3%.The method, can not only reduce
The depth of 2A50 alloy extrusion bar coarse grain rings, additionally it is possible to obtain the output value higher, efficiently solve problem of the prior art.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (5)
1. a kind of method of reduction 2A50 alloy coarse grain ring depth, it is characterised in that make the 2A50 alloy extrusions bar
Step includes：
Prepare ingot casting, the composition of the ingot casting includes Cr and Zr；
Ingot casting is heated, using heating ingot casting described in stove heat；
Extrusion process, the ingot casting is extruded using recipient, obtains bar；
Quenching technical, stove heat and is incubated the macrostructure sample of the bar, and obtain coarse grain ring by inspection using quenching
The qualified 2A50 alloy extrusion bars of depth.
2. the method for reducing 2A50 alloy extrusion bar coarse grain ring depth according to claim 1, it is characterised in that the casting
The composition of ingot also includes Mn.
3. the method for reducing 2A50 alloy extrusion bar coarse grain ring depth according to claim 1, it is characterised in that the casting
The accounting of Cr is not more than 0.05% in ingot.
4. the method for reducing 2A50 alloy extrusion bar coarse grain ring depth according to claim 1, it is characterised in that the casting
The accounting of Zr is not more than 0.05% in ingot.
5. the method for reducing 2A50 alloy extrusion bar coarse grain ring depth according to claim 2, it is characterised in that the casting
The accounting of Mn is between 0.6%-0.8% in ingot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249002.XA CN106756345A (en) | 2016-12-29 | 2016-12-29 | A kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611249002.XA CN106756345A (en) | 2016-12-29 | 2016-12-29 | A kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106756345A true CN106756345A (en) | 2017-05-31 |
Family
ID=58928253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611249002.XA Pending CN106756345A (en) | 2016-12-29 | 2016-12-29 | A kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106756345A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023103921A1 (en) * | 2021-12-10 | 2023-06-15 | 广东坚美铝型材厂（集团）有限公司 | Method for repairing solid bar extrusion die |
-
2016
- 2016-12-29 CN CN201611249002.XA patent/CN106756345A/en active Pending
Non-Patent Citations (4)
| Title |
|---|
| 梁世斌: "《铝合金挤压及热处理》", 31 May 2015, 中南大学出版社 * |
| 武红林等: "《铝合金型棒材挤压生产》", 31 December 2011, 中南大学出版社 * |
| 温景林等: "《有色金属挤压与拉拔技术》", 31 August 2007, 化学工业出版社 * |
| 王大伟等: "2A50铝合金挤压棒材尾端粗晶的产生原因及改善措施", 《轻合金加工技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023103921A1 (en) * | 2021-12-10 | 2023-06-15 | 广东坚美铝型材厂（集团）有限公司 | Method for repairing solid bar extrusion die |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103924180B (en) | A kind of heat treating method of TC18 titanium alloy | |
| CN103667799B (en) | High temperature alloy and preparation method thereof | |
| CN101823197B (en) | Method for molding large ring piece by casting blank ring rolling | |
| CN103990751B (en) | Prepare the 3D solid forging method of high-alloying alloy plate shaped forgeable piece | |
| CN204867373U (en) | Cooling device for foundry goods | |
| CN101815804B (en) | A method for manufacturing a wrought metal plate product having a gradient in engineering properties | |
| CN102784877A (en) | Heading process of stainless steel rivet nut | |
| Fang et al. | Study on constitutive relationships and processing maps for FGH96 alloy during two-pass hot deformation | |
| CN107008765A (en) | A kind of extrusion process of aluminium alloy extrusions for mobile phone faceplate | |
| CN103882304A (en) | Method for producing ultralow-rigidity annealing-free cold forging steel | |
| CN106756345A (en) | A kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth | |
| CN106756677A (en) | A kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth | |
| Zhbankov et al. | Forging of ingots without hot tops | |
| CN106834987A (en) | A kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth | |
| CN104907472A (en) | Forging forming method for high temperature alloy frame-shaped piece | |
| CN106702294A (en) | Method for reducing coarse grain ring depth of 2A50 alloy extruding bar | |
| CN103331324B (en) | Direct ECAE (Equal Channel Angular Extrusion) mould | |
| CN110923534B (en) | Magnesium alloy with special extrusion bar texture and preparation method thereof | |
| CN106623464A (en) | Method for decreasing coarse grain ring depth of 2A50 alloy extruded bar | |
| CN104046862A (en) | A7N01 aluminum alloy containing rare earth elements and preparation method for sheet material of A7N01 aluminum alloy | |
| CN103551550A (en) | Casting conveyor line cooling device | |
| CN104233006A (en) | Novel aluminum alloy internal groove circular tube | |
| CN103878195A (en) | Magnesium alloy plate extrusion forming method | |
| CN108866463A (en) | A kind of heat treatment process of low alloying Al-Mg-Si alloy | |
| Guofeng et al. | Research on quick superplastic forming technology of aluminum alloy complex components: Untersuchung des schnellen superplastischen Umformens von komplexen Bauteilen aus einer Aluminiumlegierung |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |