CN107287475A - The preparation method of rods and bars of aluminium alloy - Google Patents
The preparation method of rods and bars of aluminium alloy Download PDFInfo
- Publication number
- CN107287475A CN107287475A CN201710562873.5A CN201710562873A CN107287475A CN 107287475 A CN107287475 A CN 107287475A CN 201710562873 A CN201710562873 A CN 201710562873A CN 107287475 A CN107287475 A CN 107287475A
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- China
- Prior art keywords
- aluminium alloy
- parts
- bars
- rods
- preparation
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Classifications
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- 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
- 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
- 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
- C22F1/043—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 silicon as the next major constituent
-
- 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
-
- 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
Abstract
This application discloses a kind of preparation method of rods and bars of aluminium alloy, its silicon for taking 9 11 parts of parts by weight, 24 parts of iron, 57 parts of manganese, 8 10 parts of magnesium, 13 parts of chromium and 969 971 parts aluminium are fused into aluminium alloy melt, and wherein fusion temperature is between 745 755 DEG C.Cast aluminum alloys melt forming aluminium alloy cast rod, wherein cast temperature is between 720 750 DEG C.The aluminium alloy cast rod is homogenized, maintains the temperature of the aluminium alloy cast rod between 475 485 DEG C, continues 12 hours.Gradient-heated extrudes the aluminium alloy cast rod after homogenization with speed change.A kind of forging can be produced with high-strength homogeneous rods and bars of aluminium alloy by above method.
Description
Technical field
The application is related to a kind of rods and bars of aluminium alloy, more particularly to a kind of preparation method of rods and bars of aluminium alloy.
Background technology
Automobile control arm is important carrying and the turning member of automobile suspension system, and it is proposed to materials microstructure and performance
Harsh requirement, traditional control is manufactured using steel or cast iron, but the development of automotive light weight technology, it is desirable to replace passing using aluminium
The cast iron or steel of system are produced for control arm, but are due to the limitation of smelting process, performance after the forging of current extrusion material and
Coarse grain ring can not meet control arm design requirement, it is suppressed that its application on automobile.It is contemplated that invention is a kind of high-strength equal
Matter bar, for the forging of automobile control arm, the need for meeting automotive light weight technology development.
The content of the invention
In view of this, technical problems to be solved in this application is can not be by the preparation method solutions of known rods and bars of aluminium alloy
Certainly.Poor surface smoothness after known product extruding, production efficiency is not good.Also, intensity is slightly weak after product forging, and coarse-grain thickness
The shortcomings of spending thickness etc..
In order to solve the above problems, the application provides a kind of preparation method of rods and bars of aluminium alloy, it is characterised in that its step
Including：Take silicon, 2-4 parts of iron, 5-7 parts of manganese, 8-10 parts of magnesium, 1-3 parts of the chromium and 969-971 of 9-11 parts of parts by weight
The aluminium of part is fused into aluminium alloy melt, and wherein fusion temperature is between 745-755 DEG C；Cast the aluminium alloy melt shaped aluminum alloy
Casting rod, wherein cast temperature is between 720-750 DEG C；The aluminium alloy cast rod is homogenized, the temperature of the aluminium alloy cast rod is maintained
It is maintained between 475-485 DEG C, continues 12 hours；And gradient-heated extrudes the aluminium alloy cast rod after homogenization with speed change.
According to the embodiment of the application, tensile strength >=380MPa of the above-mentioned aluminium alloy cast rod, surrender is strong
Degree >=360MPa, elongation percentage >=10%, thick crystal layer thickness≤3mm.
According to the embodiment of the application, the above-mentioned silicon for taking 10 parts of parts by weight, 3 parts of iron, 6 parts of manganese, 9 parts
Magnesium, 2 parts of chromium and 970 parts of aluminium are fused into the aluminium alloy melt.
It is above-mentioned the step of the aluminium alloy melt is cast into aluminium alloy cast rod according to the embodiment of the application
In, wherein between a diameter of 249-259mm of the aluminium alloy cast rod.
According to the embodiment of the application, a diameter of 254mm of the above-mentioned aluminium alloy cast rod.
It is above-mentioned in the step of homogenizing the aluminium alloy cast rod according to the embodiment of the application, wherein described
The β inversion of phases of needle-like is circular γ phases inside aluminium alloy cast rod.
It is above-mentioned to extrude the aluminium alloy after homogenization in gradient-heated and speed change according to the embodiment of the application
In the step of casting rod, it further includes processing mold, and the land length of the processing mold is controlled in 2.5-3.5mm, and described
Work band band angle control is between 6.7 ° -7.7 °.
According to the embodiment of the application, the land length of the above-mentioned processing mold is controlled in 3mm, and its band
Angle is controlled at 7 °.
According to the embodiment of the application, above-mentioned fusion temperature is 750 DEG C, and cast temperature is 735 DEG C, homogenization temperature
Spend for 480 DEG C.
By the preparation method of such a rods and bars of aluminium alloy for the composition adjustment of known rods and bars of aluminium alloy, homogenization process,
Optimizing die structure etc..Such mode is to produce a kind of high-strength homogeneous rods and bars of aluminium alloy of control arm forging.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Exemplary embodiment please and its illustrate to be used to explain the application, do not constitute the improper restriction to the application.In the accompanying drawings：
Fig. 1 is the flow chart of the preparation method of the rods and bars of aluminium alloy of the application；
Fig. 2 is the schematic cross-sectional view of the processing mold of the rods and bars of aluminium alloy of the application.
Embodiment
Multiple embodiments of the application, as clearly stated, the details in many practices will be disclosed with schema below
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the application.Also
It is to say, in some embodiments of the application, the details in these practices is non-essential.In addition, for the sake of simplifying schema,
Some known usual structures and component will be illustrated in simply illustrative mode in the drawings.
In present embodiment, it provides a kind of preparation method of rods and bars of aluminium alloy, and it can be used for preparing automobile hanging
The automobile control arm structure of system.Component of the material of the rods and bars of aluminium alloy of the application comprising following parts by weight is made, and takes 9-
11 parts of silicon, 2-4 parts of iron, 5-7 parts of manganese, 8-10 parts of magnesium, 1-3 parts of chromium and 968-972 parts of aluminium.
Referring to Fig. 1, its flow chart for the preparation method of the rods and bars of aluminium alloy of the application.As illustrated, this embodiment party
Formula is according to the material composition of above-mentioned rods and bars of aluminium alloy than being prepared, and its preparation method is comprised the steps of, in step S1：Take
The composition of rods and bars of aluminium alloy, which is put into stove, to be melted, and wherein fusion temperature is between 745-755 DEG C.In present embodiment, with
750 DEG C are used as fusion temperature.
In step S3：Cast the aluminium alloy melt shaped aluminum alloy casting rod, wherein cast temperature is between 720-750 DEG C.
Present embodiment is cast with 735 DEG C of temperature, and the aluminium alloy that aluminium alloy melt is cast into diameter 249-259mm is cast
Rod.
In step S5：The aluminium alloy cast rod is homogenized, the temperature of the aluminium alloy cast rod is maintained between 475-485 DEG C,
And continue 12 hours.Present embodiment be through vital casting rod temperature in 480 DEG C, to ensure inside aluminium alloy cast rod
Composition full and uniformization.The β inversion of phases of needle-like is circular γ phases inside aluminium alloy cast rod, follow-up by aluminium alloy cast rod to improve
When being crushed to, the surface quality of its Al-alloy products.
In step S7 gradient-heateds and the speed extruding aluminium alloy cast rod.Wherein aluminium alloy cast rod is put as processing mold
It is interior to be heated, and this processing mold has at least two-part heating region, and be distinctly different heating-up temperatures.When aluminium is closed
Golden casting rod is put as in this processing mold, and the front half section of aluminium alloy cast rod corresponds to heating region, and aluminium alloy cast rod is later half
Section corresponds to another heating region.By the front half section of aluminium alloy cast rod is different from the power that the second half section is absorbed, programming rate
Difference, aluminium alloy cast rod front-end and back-end just generate the temperature difference, provide to front and rear end heating power by processing mold
Row regulation, it is possible to decrease the temperature difference of aluminium alloy cast rod front-end and back-end.Also, the controllable aluminium alloy cast rod of speed change extruding is by adding
The speed of tool and mould.So aluminium alloy cast rod is ensure that during being extruded in processing mold, aluminium alloy cast rod
Front end is consistent with the temperature of back segment.
It is the schematic cross-sectional view of the processing mold of the rods and bars of aluminium alloy of the application also referring to Fig. 2.As illustrated, this
Embodiment is directed to above-mentioned processing mold 10 and accurately designed, and processing mold is toroidal, and Fig. 2 is drawing in side sectional elevation.
Between the length of the work band 11 control 2.5-3.5mm of processing mold 10, and the band angle, θ that works is between 6.7-7.7 °.Such processing mould
Tool 10 is in extrusion process in (shown by arrow direction is the direction of extrusion), the side position of aluminium alloy cast rod and aluminium alloy cast rod
Between position flow velocity it is uniform.In present embodiment, the length of work band 11 control of processing mold 10 is in 3mm, and the band angle, θ that works
Control is at 7 °.
Present embodiment is that the rods and bars of aluminium alloy of high intensity and homogeneous, wherein aluminium alloy can be produced by above method
Casting rod is in tensile strength >=380Mpa after forging, yield strength >=360MPa, elongation percentage >=10%, thick crystal layer thickness≤3mm.
Present embodiment is its aluminium alloy material when being directed to known rods and bars of aluminium alloy make the design of automobile control arm
The problems such as material still has surface smoothness, production efficiency, structural strength etc..Therefore, present embodiment provides a kind of rods and bars of aluminium alloy
Preparation method：Adjusted in step S1 for al alloy component.Aluminium alloy melt is cast in step S3, casting rod is molded.
In step S5 the technique homogenized is constituted for aluminium alloy cast rod.Heated and squeezed for aluminium alloy cast rod in step S7
Pressure technique.Manufactured aluminium alloy cast rod through the above way, its surface smoothness is good, and production efficiency is high.Also, aluminium alloy is cast
Intensity after rod forging is high, and the thickness of coarse-grain layer is small, can more meet the design requirement applied to automobile control arm.
Some preferred embodiments of the present invention have shown and described in described above, but as previously described, it should be understood that this hair
It is bright to be not limited to form disclosed herein, the exclusion to other embodiment is not to be taken as, and available for various other
Combination, modification and environment, and can in invention contemplated scope described herein, by the technology of above-mentioned teaching or association area or
Knowledge is modified., then all should be and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention
In the protection domain of appended claims of the present invention.
Claims (9)
1. a kind of preparation method of rods and bars of aluminium alloy, it is characterised in that its step includes：
Take silicon, 2-4 parts of iron, 5-7 parts of manganese, 8-10 parts of magnesium, 1-3 parts of the chromium and 969-971 of 9-11 parts of parts by weight
The aluminium of part is fused into aluminium alloy melt, and wherein fusion temperature is between 745-755 DEG C；
Cast the aluminium alloy melt shaped aluminum alloy casting rod, wherein cast temperature is between 720-750 DEG C；
The aluminium alloy cast rod is homogenized, maintains the temperature of the aluminium alloy cast rod between 475-485 DEG C, continues 12 hours；With
And
Gradient-heated extrudes the aluminium alloy cast rod after homogenization with speed change.
2. the preparation method of rods and bars of aluminium alloy as claimed in claim 1, it is characterised in that wherein described aluminium alloy cast rod it is anti-
Tensile strength >=380MPa, yield strength >=360MPa, elongation percentage >=10%, thick crystal layer thickness≤3mm.
3. the preparation method of rods and bars of aluminium alloy as claimed in claim 1, it is characterised in that wherein take 10 parts of parts by weight
Silicon, 3 parts of iron, 6 parts of manganese, 9 parts of magnesium, 2 parts of chromium and 970 parts of aluminium are fused into the aluminium alloy melt.
4. the preparation method of rods and bars of aluminium alloy as claimed in claim 1, it is characterised in that in cast the aluminium alloy melt into
In the step of type aluminium alloy cast rod, wherein between a diameter of 249-259mm of the aluminium alloy cast rod.
5. the preparation method of rods and bars of aluminium alloy as claimed in claim 4, it is characterised in that wherein described aluminium alloy cast rod it is straight
Footpath is 254mm.
6. the preparation method of rods and bars of aluminium alloy as claimed in claim 1, it is characterised in that in the homogenization aluminium alloy cast rod
The step of in, wherein the β inversion of phases of needle-like is circular γ phases inside the aluminium alloy cast rod.
7. the preparation method of rods and bars of aluminium alloy as claimed in claim 1, it is characterised in that wherein squeezed in gradient-heated and speed change
In the step of pressing the aluminium alloy cast rod after homogenization, processing mold, the land length control of the processing mold are further included
System is in 2.5-3.5mm, and its band angle is controlled between 6.7-7.7 °.
8. the preparation method of rods and bars of aluminium alloy as claimed in claim 7, it is characterised in that the work of wherein described processing mold
Strip length is controlled in 3mm, and its band angle is controlled at 7 °.
9. the preparation method of rods and bars of aluminium alloy as claimed in claim 1, it is characterised in that wherein fusion temperature is 750 DEG C, is poured
It is 735 DEG C to cast temperature, and homogenization temperature is 480 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710562873.5A CN107287475A (en) | 2017-07-11 | 2017-07-11 | The preparation method of rods and bars of aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710562873.5A CN107287475A (en) | 2017-07-11 | 2017-07-11 | The preparation method of rods and bars of aluminium alloy |
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| Publication Number | Publication Date |
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| CN107287475A true CN107287475A (en) | 2017-10-24 |
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| CN201710562873.5A Pending CN107287475A (en) | 2017-07-11 | 2017-07-11 | The preparation method of rods and bars of aluminium alloy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739913A (en) * | 2017-10-23 | 2018-02-27 | 北京泰科先锋科技有限公司 | Make alloy material of anti-take-off button and preparation method thereof |
| CN108941239A (en) * | 2018-06-26 | 2018-12-07 | 亚太轻合金(南通)科技有限公司 | A kind of production technology of aluminium alloy pole |
| CN110387515A (en) * | 2019-08-30 | 2019-10-29 | 江苏南铝创佳金属股份有限公司 | A kind of production method promoting 6063 aluminum alloy core matrix grain degree |
Citations (1)
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| CN106350708A (en) * | 2016-08-31 | 2017-01-25 | 无锡海特铝业有限公司 | High-strength coarse-grain-ring-free aluminum alloy bar for automotive control arm and preparation method of aluminum alloy bar |
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- 2017-07-11 CN CN201710562873.5A patent/CN107287475A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106350708A (en) * | 2016-08-31 | 2017-01-25 | 无锡海特铝业有限公司 | High-strength coarse-grain-ring-free aluminum alloy bar for automotive control arm and preparation method of aluminum alloy bar |
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| 梁世斌: "《铝合金挤压及热处理》", 31 May 2015, 中南大学出版社 * |
| 沈宁福等: "《新编金属材料手册》", 31 January 2003, 科学出版社 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739913A (en) * | 2017-10-23 | 2018-02-27 | 北京泰科先锋科技有限公司 | Make alloy material of anti-take-off button and preparation method thereof |
| CN108941239A (en) * | 2018-06-26 | 2018-12-07 | 亚太轻合金(南通)科技有限公司 | A kind of production technology of aluminium alloy pole |
| CN110387515A (en) * | 2019-08-30 | 2019-10-29 | 江苏南铝创佳金属股份有限公司 | A kind of production method promoting 6063 aluminum alloy core matrix grain degree |
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Application publication date: 20171024 |