CN108998706A - A kind of moulding process for eliminating aluminium alloy black line and a kind of aluminium alloy extrusions - Google Patents
A kind of moulding process for eliminating aluminium alloy black line and a kind of aluminium alloy extrusions Download PDFInfo
- Publication number
- CN108998706A CN108998706A CN201810838846.0A CN201810838846A CN108998706A CN 108998706 A CN108998706 A CN 108998706A CN 201810838846 A CN201810838846 A CN 201810838846A CN 108998706 A CN108998706 A CN 108998706A
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- aluminium alloy
- moulding process
- black line
- process according
- cast ingot
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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
- C22C21/06—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
-
- 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
- B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
-
- 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
A kind of moulding process for eliminating aluminium alloy black line, it is related to field of aluminum alloys, it passes through the adjustment to alloying component, and the parameters in stringent limitation extrusion process, reduce the frictional force of metal and die working length, it reduces metal and bonds mold work zoning, reduce the metal inclusion being bonded on mold work band and enter subsequent extrusion Surface of profile, to eliminate the black line for squeezing and generating.The moulding process it is easy to operate, method is simple and easy to control, preferable to the eradicating efficacy of the black line generated in aluminium alloy extruded forming process.A kind of aluminium alloy extrusions uses the above-mentioned moulding process for eliminating aluminium alloy black line to be prepared, and the surface of the aluminium alloy extrusions is uniform and smooth, and without the black line generated in process, surface quality is preferable.
Description
Technical field
The present invention relates to field of aluminum alloys, in particular to one kind can eliminate aluminium alloy black line moulding process and
A kind of aluminium alloy extrusions.
Background technique
With the continuous development of domestic and international aluminium alloy extruded technology, it is each that aluminum alloy heat extrudate is widely used in each row
Industry.In recent years, domestic aluminium extrusion industry constantly introduced advanced equipment and technology, the especially state of rail traffic aluminum profile
Productionization, so that domestic Extrusion Process of Aluminum Alloy Profile technology has larger promotion.
6063 aluminium alloys are in Al-Mg-Si system alloy using more alloy, because its profile have after anodic oxidation it is good
Good corrosion resistance, solderability and dicoration, is widely used in the industries such as building, indoor decoration.As 6063 aluminium alloys are processed
Technique it is increasingly mature, client is higher and higher to its surface quality requirements, and the quality of Surface Quality of Aluminum Alloy Profiles seriously affects
Its decorative effect and service performance.The black line that profile generates in extrusion process influences the oxidation effectiveness in later period, causes serious table
Face quality problems.
Summary of the invention
It is easy to operate the purpose of the present invention is to provide the moulding process that one kind can eliminate aluminium alloy black line, technique letter
It is monostable fixed, the black line generated in aluminium alloy extruded forming process can be effectively eliminated.
Another object of the present invention is to provide a kind of aluminium alloy extrusions, use it is above-mentioned eliminate aluminium alloy black line at
Type technique is prepared, and surface is uniform and smooth, and without the black line generated in process, surface quality is preferable.
The embodiment of the present invention is achieved in that
A kind of moulding process for eliminating aluminium alloy black line comprising:
By 460~510 DEG C of aluminium alloy cast ingot through 400~450 DEG C of extrusion cylinder squeeze to 460~510 DEG C of mold into
Row hot extrusion molding；
Wherein, in percentage by weight, aluminium alloy cast ingot includes Si 0.2%~0.5%, Fe0.2%~0.32%,
Cu 0.05%~0.12%, Mn 0.05%~0.12%, Mg 0.45%-0.9%, Cr 0.05%~0.12%, Zn
0.05%~0.12%, Ti 0.05%~0.12%, surplus Al.
A kind of aluminium alloy extrusions is prepared by the above-mentioned moulding process for eliminating aluminium alloy black line.
The beneficial effect of the embodiment of the present invention is:
The embodiment of the invention provides the moulding process that one kind can eliminate aluminium alloy black line, pass through the tune to alloying component
It is whole, and the parameters in stringent limitation extrusion process, the frictional force of metal and die working length is reduced, it is viscous to reduce metal
Mold work zoning is tied, the metal inclusion being bonded on mold work band is reduced and enters subsequent extrusion Surface of profile, to disappear
Except the black line for squeezing generation.The moulding process it is easy to operate, method is simple and easy to control, to producing in aluminium alloy extruded forming process
The eradicating efficacy of raw black line is preferable.
The embodiment of the invention also provides a kind of aluminium alloy extrusions, use the above-mentioned molding work for eliminating aluminium alloy black line
Skill is prepared, and the surface of the aluminium alloy extrusions is uniform and smooth, and without the black line generated in process, surface quality is preferable.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Below to a kind of moulding process that can eliminate aluminium alloy black line of the embodiment of the present invention and a kind of aluminium alloy extrusions
It is specifically described.
The embodiment of the invention provides the moulding process that one kind can eliminate aluminium alloy black line comprising:
By 460~510 DEG C of aluminium alloy cast ingot through 400~450 DEG C of extrusion cylinder squeeze to 460~510 DEG C of mold into
Row hot extrusion molding；
Wherein, in percentage by weight, aluminium alloy cast ingot includes Si 0.2%~0.5%, Fe0.2%~0.32%,
Cu 0.05%~0.12%, Mn 0.05%~0.12%, Mg 0.45%-0.9%, Cr 0.05%~0.12%, Zn
0.05%~0.12%, Ti 0.05%~0.12%, surplus Al.
6063 aluminium alloys are in Al-Mg-Si system alloy using more alloy, because its profile have after anodic oxidation it is good
Good corrosion resistance, solderability and dicoration, is widely used in the industries such as building, indoor decoration.6063 aluminium alloys are in hot extrusion
It is easy to produce black line during molding, and these black lines will affect the oxidation effectiveness in later period, and serious surface quality is caused to ask
Topic.
In percentage by weight, the alloying component of 6063 aluminium alloy of standard be Si0.2-0.6%, Fe0.35%,
Cu0.1%, Mn0.1%, Mg0.45-0.9%, Cr0.1%, Zn0.1%, Ti0.1%, surplus Al.Inventor is basic herein
On, its alloying component is optimized, the aluminium alloy after optimization is more favorable for hot extrusion molding, has actively for eliminating black line
Effect.
Preferably, in percentage by weight, aluminium alloy cast ingot includes Si 0.3%~0.5%, and Fe 0.2%~
0.35%, Cu 0.08%~0.1%, Mn 0.08%~0.1%, Mg 0.45%-0.6%, Cr 0.08%~0.1%, Zn
0.08%~0.1%, Ti 0.08%~0.1%, surplus Al.
It is further preferable that in percentage by weight, aluminium alloy cast ingot includes Si0.38%~0.43%, Fe 0.2%,
Cu 0.1%, Mn 0.1%, Mg 0.53%~0.58%, Cr0.1%, Zn 0.08%, Ti 0.1%, surplus Al.
Before carrying out hot extrusion, need that aluminium alloy cast ingot is first heated to 460~510 DEG C, and to mold and extrusion cylinder into
Row preheating.It can be made to maintain recrystallization always in favor of the temperature of holding aluminium alloy cast ingot the preheating of mold and extrusion cylinder
On temperature, to reduce the frictional force of metal and die working length, reduces metal and bond mold work zoning, reduce bonding
Metal inclusion on mold work band enters subsequent extrusion Surface of profile, achievees the purpose that eliminate the black line for squeezing and generating.Into
One step, the mold of die trial qualification can be put into drawer type mould heating furnace and be heated up to 460~510 DEG C, and keep the temperature 4~6h to make
Its temperature is constant.
In embodiments of the present invention, the extruded velocity of hot extrusion molding is 8~30m/min.The profile of hot extrusion molding goes out
Mouth temperature is 530~550 DEG C.Suitable extruded velocity and outlet temperature can further decrease the friction between metal and mold
Power, conducive to the black line for squeezing and generating is eliminated.
It further include being closed to the aluminium squeezed out the embodiment of the invention provides the moulding process that one kind can eliminate aluminium alloy black line
Metal type material is quenched.Quenching treatment using online air-cooled, enable aluminum alloy to profile it is air-cooled after temperature≤260 DEG C.Or it adopts
With water cooling, make temperature≤100 DEG C of profile after water cooling.
It further, further include that will quench the embodiment of the invention provides the moulding process that one kind can eliminate aluminium alloy black line
Treated that aluminium alloy extrusions stretches 0.3%~2.0% along its length for fire.Tension straingtening is needed according to material, section shape
Shape and dimensional tolerance are bent situation to carry out, and the selection of optimum stretch rate is to stretch front and back transverse section of section material size by examining
Tolerance variation determines that determining optimum stretch rate must assure that the profile after stretching meets size tolerance requirements.
Further, ageing treatment being carried out to the aluminium alloy extrusions after stretching, the temperature of ageing treatment is 175~185 DEG C,
Time is 2~3h.Ageing treatment can eliminate the residual stress of aluminium alloy extrusions, stablize aluminium alloy extrusions tissue and size.
The embodiment of the invention provides the moulding process that one kind can eliminate aluminium alloy black line, further include casting by aluminium alloy
Ingot first carries out railway carriage processing to aluminium alloy cast ingot before being heated to 460~510 DEG C.Railway carriage processing can remove aluminium alloy casting
The oxidation film of ingot surface, conducive to the progress of subsequent job step.
The embodiment of the invention also provides a kind of aluminium alloy extrusions, use the above-mentioned molding work for eliminating aluminium alloy black line
Skill is prepared, and the surface of the aluminium alloy extrusions is uniform and smooth, and without the black line generated in process, surface quality is preferable.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of moulding process that can eliminate aluminium alloy black line is present embodiments provided to use in percentage by weight
Aluminium alloy cast ingot alloying component it is as follows:
Si 0.38%, Fe 0.2%, Cu 0.1%, Mn 0.1%, Mg 0.58%, Cr 0.1%, Zn 0.08%, Ti
0.1%, surplus Al.
Its specific processing step is as follows:
S1. railway carriage processing is carried out to aluminium alloy cast ingot, removes the oxidation film on its surface, and by railway carriage treated aluminium alloy
Ingot casting is heated to 460 DEG C.
S2. mold and extrusion cylinder being preheated, mold is heated to 460 DEG C of temperature, extrusion cylinder temperature sets 420 DEG C,
431 DEG C of heating temperature.
S3. control extruded velocity 12m/min, 530 DEG C of outlet temperature, carry out hot extrusion molding, extrusion ratio control 44~
53。
S4. the aluminium alloy extrusions of hot extrusion molding is cooled down using water cooling, makes temperature≤100 DEG C after cooling.
S5. tension straingtening is carried out to quenched aluminium alloy extrusions, control extensibility is 0.5%~0.6%.
S6. ageing treatment is carried out to the aluminium alloy extrusions after stretching, aging temp is set as 180 DEG C, aging time 2h.
The aluminium alloy extrusions accurate size that the present embodiment obtains, surface is smooth, black line caused by no hot extrusion, surface
Better quality.
Embodiment 2
A kind of moulding process that can eliminate aluminium alloy black line is present embodiments provided to use in percentage by weight
Aluminium alloy cast ingot alloying component it is as follows:
Si 0.2%, Fe 0.2%, Cu 0.12%, Mn 0.12%, Mg 0.45%, Cr 0.12%, Zn 0.05%,
Ti 0.12%, surplus Al.
Its specific processing step is as follows:
S1. railway carriage processing is carried out to aluminium alloy cast ingot, removes the oxidation film on its surface, and by railway carriage treated aluminium alloy
Ingot casting is heated to 510 DEG C.
S2. mold and extrusion cylinder being preheated, mold is heated to 510 DEG C of temperature, extrusion cylinder temperature sets 400 DEG C,
410 DEG C of heating temperature.
S3. control extruded velocity 9m/min, 545 DEG C of outlet temperature, carry out hot extrusion molding, extrusion ratio control 44~
50。
S4. the aluminium alloy extrusions of hot extrusion molding is cooled down using water cooling, makes temperature≤150 DEG C after cooling.
S5. tension straingtening is carried out to quenched aluminium alloy extrusions, control extensibility is 0.3%~0.4%.
S6. ageing treatment is carried out to the aluminium alloy extrusions after stretching, aging temp is set as 175 DEG C, aging time 3h.
The aluminium alloy extrusions accurate size that the present embodiment obtains, surface is smooth, black line caused by no hot extrusion, surface
Better quality.
Embodiment 3
A kind of moulding process that can eliminate aluminium alloy black line is present embodiments provided to use in percentage by weight
Aluminium alloy cast ingot alloying component it is as follows:
Si 0.5%, Fe 0.32%, Cu 0.05%, Mn 0.05%, Mg 0.9%, Cr 0.05%, Zn 0.12%,
Ti 0.05%, surplus Al.
Its specific processing step is as follows:
S1. railway carriage processing is carried out to aluminium alloy cast ingot, removes the oxidation film on its surface, and by railway carriage treated aluminium alloy
Ingot casting is heated to 480 DEG C.
S2. mold and extrusion cylinder being preheated, mold is heated to 480 DEG C of temperature, extrusion cylinder temperature sets 440 DEG C,
450 DEG C of heating temperature.
S3. control extruded velocity 10m/min, 545 DEG C of outlet temperature, carry out hot extrusion molding, extrusion ratio control 48~
55。
S4. the aluminium alloy extrusions of hot extrusion molding is cooled down using water cooling, makes temperature≤100 DEG C after cooling.
S5. tension straingtening is carried out to quenched aluminium alloy extrusions, control extensibility is 1.5%~1.7%.
S6. ageing treatment is carried out to the aluminium alloy extrusions after stretching, aging temp is set as 185 DEG C, aging time 2h.
The aluminium alloy extrusions accurate size that the present embodiment obtains, surface is smooth, black line caused by no hot extrusion, surface
Better quality.
Embodiment 4
A kind of moulding process that can eliminate aluminium alloy black line is present embodiments provided to use in percentage by weight
Aluminium alloy cast ingot alloying component it is as follows:
Si 0.43%, Fe 0.2%, Cu 0.1%, Mn 0.1%, Mg 0.53%, Cr 0.1%, Zn 0.08%, Ti
0.1%, surplus Al.
Its specific processing step is as follows:
S1. railway carriage processing is carried out to aluminium alloy cast ingot, removes the oxidation film on its surface, and by railway carriage treated aluminium alloy
Ingot casting is heated to 500 DEG C.
S2. mold and extrusion cylinder being preheated, mold is heated to 500 DEG C of temperature, extrusion cylinder temperature sets 440 DEG C,
450 DEG C of heating temperature.
S3. control extruded velocity 10m/min, 550 DEG C of outlet temperature, carry out hot extrusion molding, extrusion ratio control 45~
50。
S4. the aluminium alloy extrusions of hot extrusion molding is cooled down using water cooling, makes temperature≤120 DEG C after cooling.
S5. tension straingtening is carried out to quenched aluminium alloy extrusions, control extensibility is 1.3%~1.5%.
S6. ageing treatment is carried out to the aluminium alloy extrusions after stretching, aging temp is set as 180 DEG C, aging time 2h.
The aluminium alloy extrusions accurate size that the present embodiment obtains, surface is smooth, black line caused by no hot extrusion, surface
Better quality.
In conclusion passing through pairing the embodiment of the invention provides the moulding process that one kind can eliminate aluminium alloy black line
Parameters in the adjustment of golden ingredient, and stringent limitation extrusion process, reduce the frictional force of metal and die working length,
It reduces metal and bonds mold work zoning, reduce the metal inclusion being bonded on mold work band and enter subsequent extrusion profile table
Face, to eliminate the black line for squeezing and generating.The moulding process it is easy to operate, method is simple and easy to control, to it is aluminium alloy extruded at
The eradicating efficacy of the black line generated during type is preferable.
The embodiment of the invention also provides a kind of aluminium alloy extrusions, use the above-mentioned molding work for eliminating aluminium alloy black line
Skill is prepared, and the surface of the aluminium alloy extrusions is uniform and smooth, and without the black line generated in process, surface quality is preferable.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. the moulding process that one kind can eliminate aluminium alloy black line characterized by comprising
460~510 DEG C of aluminium alloy cast ingot is subjected to heat through the mold that 400~450 DEG C of extrusion cylinder is squeezed to 460~510 DEG C
Extrusion forming；
Wherein, in percentage by weight, the aluminium alloy cast ingot includes Si 0.2%~0.5%, Fe 0.2%~0.32%,
Cu 0.05%~0.12%, Mn 0.05%~0.12%, Mg 0.45%-0.9%, Cr 0.05%~0.12%, Zn
0.05%~0.12%, Ti 0.05%~0.12%, surplus Al.
2. moulding process according to claim 1, which is characterized in that in percentage by weight, the aluminium alloy cast ingot
Including Si 0.3%~0.5%, Fe 0.2%~0.25%, Cu 0.08%~0.1%, Mn 0.08%~0.1%, Mg
0.45%-0.6%, Cr 0.08%~0.1%, Zn 0.08%~0.1%, Ti 0.08%~0.1%, surplus Al.
3. moulding process according to claim 2, which is characterized in that in percentage by weight, the aluminium alloy cast ingot
Including Si 0.38%~0.43%, Fe 0.2%, Cu 0.1%, Mn 0.1%, Mg 0.53%~0.58%, Cr 0.1%,
Zn 0.08%, Ti 0.1%, surplus Al.
4. described in any item moulding process according to claim 1~3, which is characterized in that the extrusion speed of the hot extrusion molding
Degree is 8~30m/min.
5. moulding process according to claim 4, which is characterized in that the profile outlet temperature of the hot extrusion molding is
530~550 DEG C.
6. moulding process according to claim 5, which is characterized in that carried out at quenching to the aluminium alloy extrusions squeezed out
Reason: using online air-cooled, temperature≤260 DEG C after keeping the aluminium alloy extrusions air-cooled；Or water cooling is used, make the aluminium alloy type
Temperature≤100 DEG C after material water cooling.
7. moulding process according to claim 6, which is characterized in that by the aluminium alloy extrusions after quenching treatment along it
Length direction stretches 0.3%~2.0%.
8. moulding process according to claim 7, which is characterized in that carry out timeliness to the aluminium alloy extrusions after stretching
Processing, the temperature of ageing treatment are 175~185 DEG C, and the time is 2~3h.
9. moulding process according to claim 1, which is characterized in that by the aluminium alloy cast ingot be heated to 460~
Before 510 DEG C, railway carriage processing first is carried out to the aluminium alloy cast ingot.
10. a kind of aluminium alloy extrusions, which is characterized in that by the aluminium alloy black line according to any one of claims 1 to 9 eliminated
Moulding process is prepared.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810838846.0A CN108998706A (en) | 2018-07-26 | 2018-07-26 | A kind of moulding process for eliminating aluminium alloy black line and a kind of aluminium alloy extrusions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810838846.0A CN108998706A (en) | 2018-07-26 | 2018-07-26 | A kind of moulding process for eliminating aluminium alloy black line and a kind of aluminium alloy extrusions |
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ID=64597144
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| JPS4822311B1 (en) * | 1966-12-29 | 1973-07-05 | ||
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| CN103537502A (en) * | 2013-11-04 | 2014-01-29 | 张家港市昊天金属科技有限公司 | Aluminium profile extrusion process |
| CN106391741A (en) * | 2016-10-09 | 2017-02-15 | 山东南山铝业股份有限公司 | Aluminum alloy paddle profile and manufacturing process thereof |
| CN106521268A (en) * | 2016-12-30 | 2017-03-22 | 中山瑞泰铝业有限公司 | Aluminum alloy for consumer electronic product shell and preparing method and application of aluminum alloy |
| CN107983792A (en) * | 2017-12-29 | 2018-05-04 | 西南铝业（集团）有限责任公司 | A kind of 6063 aluminium alloy extrusions extrusion processes |
-
2018
- 2018-07-26 CN CN201810838846.0A patent/CN108998706A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4822311B1 (en) * | 1966-12-29 | 1973-07-05 | ||
| CN103194701A (en) * | 2013-04-28 | 2013-07-10 | 东莞市铝美铝型材有限公司 | Production process for aluminium alloy profile |
| CN103537502A (en) * | 2013-11-04 | 2014-01-29 | 张家港市昊天金属科技有限公司 | Aluminium profile extrusion process |
| CN106391741A (en) * | 2016-10-09 | 2017-02-15 | 山东南山铝业股份有限公司 | Aluminum alloy paddle profile and manufacturing process thereof |
| CN106521268A (en) * | 2016-12-30 | 2017-03-22 | 中山瑞泰铝业有限公司 | Aluminum alloy for consumer electronic product shell and preparing method and application of aluminum alloy |
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