CN108165904A - A kind of process for quenching of 1420CZ aluminium lithium alloys type - Google Patents
A kind of process for quenching of 1420CZ aluminium lithium alloys type Download PDFInfo
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- CN108165904A CN108165904A CN201711463731.XA CN201711463731A CN108165904A CN 108165904 A CN108165904 A CN 108165904A CN 201711463731 A CN201711463731 A CN 201711463731A CN 108165904 A CN108165904 A CN 108165904A
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
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Abstract
The invention discloses a kind of process for quenching of 1420CZ aluminium lithium alloys type,Glowing furnace is respectively an area from bottom to top,2nd area,Control zone,3rd area and 4th area,During shove charge,The temperature in one area is 413 DEG C 430 DEG C,The temperature in 2nd area is 412 DEG C 413 DEG C,The temperature of control zone is 411 DEG C 425 DEG C,The temperature in 3rd area is 413 DEG C 425 DEG C,The temperature in 4th area is 407 DEG C 422 DEG C,After shove charge,Control point temperature is set as 440 DEG C first,When an area,2nd area,Control zone,When the temperature in 3rd area and 4th area is 440 DEG C ± 2 DEG C,Control point temperature is improved several times until improving to 445 DEG C,When an area,2nd area,Control zone,When the temperature in 3rd area and 4th area is 445 DEG C ± 2 DEG C,Stop heat temperature raising,It is changed to keep the temperature,The summation of the time of heating and the time of heat preservation are 50 minutes to 70 minutes.It realizes while mechanical property reaches standard requirement, reduces black and white spot.
Description
Technical field
The present invention relates to aluminium lithium alloy section bar production method technical field, more particularly to a kind of 1420CZ aluminium lithium alloys type
Process for quenching.
Background technology
1420CZ aluminium lithium alloys are as a kind of middle high intensity, the functional material of lightweight, and added value is quite high.In practical life
The aluminium lithium alloy Surface of profile always exists black and white spot phenomenon during production, some are in dotted, some are in random bulk.With
Family needs to carry out anodic oxidation to product in use, to enhance the corrosion resistance of the alloy and other performance, and the section bar
Black and white spot influence the development of subsequent process.
Therefore, how a kind of process for quenching of 1420CZ aluminium lithium alloys type is provided, reaches standard in mechanical property to realize
It is required that while, black and white spot is reduced, is the current technical issues that need to address of those skilled in the art.
Invention content
The object of the present invention is to provide a kind of process for quenching of 1420CZ aluminium lithium alloys type, are reached with realizing in mechanical property
While standard requires, black and white spot is reduced.
In order to solve the above technical problems, the present invention provides following scheme：
A kind of process for quenching of 1420CZ aluminium lithium alloys type, glowing furnace from bottom to top be respectively an area, 2nd area, control zone,
3rd area and 4th area,
During shove charge, the temperature in an area is 413 DEG C -430 DEG C, and the temperature in 2nd area is 412 DEG C -413 DEG C, the control
The temperature in area processed is 411 DEG C -425 DEG C, and the temperature in 3rd area is 413 DEG C -425 DEG C, and the temperature in 4th area is 407 DEG C -422
DEG C,
After shove charge, control point temperature is set as 440 DEG C first, when an area, 2nd area, the control zone, institute
When stating the temperature in 3rd area and 4th area and being 440 DEG C ± 2 DEG C, the control point temperature is improved several times until improving to 445
DEG C, when the temperature in an area, 2nd area, the control zone, 3rd area and 4th area is 445 DEG C ± 2 DEG C, stop
Only heat temperature raising is changed to keep the temperature,
The summation of the time of the heating and the time of the heat preservation are 50 minutes to 70 minutes.
Preferably, temperature during shove charge is specifically, before shove charge by in-furnace temperature control below 430 DEG C.
Preferably, temperature during shove charge specifically,
Before shove charge, the temperature in an area is 430 DEG C, and the temperature in 2nd area is 413 DEG C, and the temperature of the control zone is
425 DEG C, the temperature in 3rd area is 425 DEG C, and the temperature in 4th area is 422 DEG C,
After shove charge, the temperature in an area is 413 DEG C, and the temperature in 2nd area is 412 DEG C, and the temperature of the control zone is
411 DEG C, the temperature in 3rd area is 413 DEG C, and the temperature in 4th area is 407 DEG C.
Preferably, above-mentioned control point temperature is improved several times until improving to 445 DEG C, specifically, improving control every time 1
℃-2℃。
Preferably, the time of above-mentioned heating is 20 minutes, and the time of the heat preservation is 30 minutes, alternatively,
The time of the heating is 40 minutes, and the time of the heat preservation is 30 minutes.
A kind of process for quenching of 1420CZ aluminium lithium alloys type, glowing furnace from bottom to top be respectively an area, 2nd area, control zone,
3rd area and 4th area,
During shove charge, the temperature in an area is 414 DEG C -427 DEG C, and the temperature in 2nd area is 420 DEG C -425 DEG C, the control
The temperature in area processed is 420 DEG C -429 DEG C, and the temperature in 3rd area is 421 DEG C -427 DEG C, and the temperature in 4th area is 414 DEG C -427
DEG C,
After shove charge, control point temperature is set as 440 DEG C first, when an area, 2nd area, the control zone, institute
When stating the temperature in 3rd area and 4th area and being 440 DEG C ± 2 DEG C, the control point temperature is improved several times until improving to 445
DEG C, when the temperature in an area, 2nd area, the control zone, 3rd area and 4th area is 445 DEG C ± 3 DEG C, stop
Only heat temperature raising is changed to keep the temperature,
The summation of the time of the heating and the time of the heat preservation are 50min ± 5min.
Preferably, temperature during shove charge is specifically, before shove charge by in-furnace temperature control below 430 DEG C.
Preferably, temperature during shove charge specifically,
Before shove charge, the temperature in an area is 427 DEG C, and the temperature in 2nd area is 425 DEG C, and the temperature of the control zone is
429 DEG C, the temperature in 3rd area is 427 DEG C, and the temperature in 4th area is 427 DEG C,
After shove charge, the temperature in an area is 414 DEG C, and the temperature in 2nd area is 420 DEG C, and the temperature of the control zone is
420 DEG C, the temperature in 3rd area is 421 DEG C, and the temperature in 4th area is 414 DEG C.
Preferably, above-mentioned control point temperature is improved several times until improving to 445 DEG C, specifically, improving control every time 1
℃-2℃。
Preferably, the time of above-mentioned heating is 20 minutes, and the time of the heat preservation is 30 minutes.
The glowing furnace that the invention described above is provided is respectively an area, 2nd area, control zone, 3rd area and 4th area from bottom to top, is filled
During stove, the temperature in an area is 413 DEG C -430 DEG C, and the temperature in 2nd area is 412 DEG C -413 DEG C, the temperature of the control zone
It is 411 DEG C -425 DEG C, the temperature in 3rd area is 413 DEG C -425 DEG C, and the temperature in 4th area is 407 DEG C -422 DEG C, after shove charge,
Control point temperature is set as 440 DEG C first, when an area, 2nd area, the control zone, 3rd area and 4th area
Temperature when being 440 DEG C ± 2 DEG C, the control point temperature is improved several times until improving to 445 DEG C, when an area, institute
When stating the temperature in 2nd area, the control zone, 3rd area and 4th area and being 445 DEG C ± 2 DEG C, stop heat temperature raising, be changed to
The summation of the time of heat preservation, the time of the heating and the heat preservation is 50 minutes to 70 minutes.It realizes and is reached in mechanical property
While requirement to standard, black and white spot is reduced.
Description of the drawings
Fig. 1 is the macroscopic view of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
Pattern schematic diagram；
Fig. 2 is the blackspot of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
Ten times of enlarged diagrams in region；
Fig. 3 is the stain of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
Ten times of enlarged diagrams of pattern；
Fig. 4 is the difference of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
The SEM pattern schematic diagrames of the blackspot at position；
Fig. 5 is the difference of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
The SEM pattern schematic diagrames of the stain at position；
Fig. 6 is the stain of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
SEM pattern schematic diagrames；
Fig. 7 is the blackspot of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
SEM pattern schematic diagrames；
Fig. 8 is the stain of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
500 times of enlarged diagrams of site tissue；
Fig. 9 is the blackspot of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
500 times of enlarged diagrams of site tissue；
Figure 10 be using 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention process for quenching produce sample just
500 times of enlarged diagrams of normal site tissue.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction with the accompanying drawings and it is embodied
The present invention is described in further detail for mode.
It is to be given birth to using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention to please refer to Fig.1-10, Fig. 1
The macro morphology schematic diagram of the sample of production；Fig. 2 is the quenching side using 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
Ten times of enlarged diagrams in the blackspot region of the sample of method production；Fig. 3 is to use 1420CZ aluminium lithium provided in an embodiment of the present invention
Ten times of enlarged diagrams of the stain pattern of the sample of alloy type process for quenching production；Fig. 4 is carries using the embodiment of the present invention
The SEM pattern schematic diagrames of the blackspot of the different parts of the sample of the process for quenching production of the 1420CZ aluminium lithium alloy types of confession；Fig. 5 is
The stain of the different parts of sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
SEM pattern schematic diagrames；Fig. 6 is the sample produced using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
Stain SEM pattern schematic diagrames；Fig. 7 is to be given birth to using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
The SEM pattern schematic diagrames of the blackspot of the sample of production；Fig. 8 is quenching using 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
500 times of enlarged diagrams of the stain site tissue of the sample of ignition method production；Fig. 9 is using provided in an embodiment of the present invention
500 times of enlarged diagrams of the blackspot site tissue of the sample of the process for quenching production of 1420CZ aluminium lithium alloy types；Figure 10 is adopts
500 times of the normal portions tissue of sample produced with the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention
Enlarged diagram.
The embodiment of the present invention provides a kind of process for quenching of 1420CZ aluminium lithium alloys type, and glowing furnace is respectively one from bottom to top
Area, 2nd area, control zone, 3rd area and 4th area, during shove charge, the temperature in an area is 413 DEG C -430 DEG C, and the temperature in 2nd area is
412 DEG C -413 DEG C, the temperature of the control zone is 411 DEG C -425 DEG C, and the temperature in 3rd area is 413 DEG C -425 DEG C, described four
The temperature in area be 407 DEG C -422 DEG C, after shove charge, control point temperature is set as 440 DEG C first, when an area, 2nd area,
When the temperature of the control zone, 3rd area and 4th area is 440 DEG C ± 2 DEG C, the control point temperature improves several times
Until it improves to 445 DEG C, when the temperature in an area, 2nd area, the control zone, 3rd area and 4th area is
At 445 DEG C ± 2 DEG C, stop heat temperature raising, be changed to keep the temperature, the summation of the time of the time of the heating and the heat preservation is 50 points
Clock was to 70 minutes.It realizes while mechanical property reaches standard requirement, reduces black and white spot.
Wherein, temperature during shove charge is specifically, before shove charge by in-furnace temperature control below 430 DEG C.Again specifically, shove charge
When temperature specifically, before shove charge, the temperature in an area is 430 DEG C, and the temperature in 2nd area is 413 DEG C, the control zone
Temperature for 425 DEG C, the temperature in 3rd area is 425 DEG C, and the temperature in 4th area is 422 DEG C, after shove charge, the temperature in an area
It is 413 DEG C to spend, and the temperature in 2nd area is 412 DEG C, and the temperature of the control zone is 411 DEG C, and the temperature in 3rd area is 413
DEG C, the temperature in 4th area is 407 DEG C.
Control point temperature is improved several times until improving to 445 DEG C, specifically, improving control every time at 1 DEG C -2 DEG C.
The time of heating is 20 minutes, and the time of the heat preservation is 30 minutes, alternatively, the time of the heating is 40 points
Clock, the time of the heat preservation is 30 minutes.
The embodiment of the present invention also provides a kind of process for quenching of 1420CZ aluminium lithium alloys type, and glowing furnace is respectively from bottom to top
One area, 2nd area, control zone, 3rd area and 4th area, during shove charge, the temperature in an area is 414 DEG C -427 DEG C, the temperature in 2nd area
It it is 420 DEG C -425 DEG C, the temperature of the control zone is 420 DEG C -429 DEG C, and the temperature in 3rd area is 421 DEG C -427 DEG C, described
The temperature in 4th area is 414 DEG C -427 DEG C, after shove charge, control point temperature is set as 440 DEG C first, as an area, described two
Area, the control zone, 3rd area and 4th area temperature when being 440 DEG C ± 2 DEG C, the control point temperature carries several times
Height is until improve to 445 DEG C, when the temperature in an area, 2nd area, the control zone, 3rd area and 4th area is
At 445 DEG C ± 3 DEG C, stop heat temperature raising, be changed to keep the temperature, the summation of the time of the time of the heating and the heat preservation is
50min±5min.It realizes while mechanical property reaches standard requirement, reduces black and white spot.
Wherein, temperature during shove charge is specifically, before shove charge by in-furnace temperature control below 430 DEG C.Again specifically, shove charge
When temperature specifically, before shove charge, the temperature in an area is 427 DEG C, and the temperature in 2nd area is 425 DEG C, the control zone
Temperature for 429 DEG C, the temperature in 3rd area is 427 DEG C, and the temperature in 4th area is 427 DEG C, after shove charge, the temperature in an area
It is 414 DEG C to spend, and the temperature in 2nd area is 420 DEG C, and the temperature of the control zone is 420 DEG C, and the temperature in 3rd area is 421
DEG C, the temperature in 4th area is 414 DEG C.
Above-mentioned control point temperature is improved several times until improving to 445 DEG C, specifically, improving control every time at 1 DEG C -2 DEG C.
The time of heating is 20 minutes, and the time of the heat preservation is 30 minutes.
In practical application, using the process for quenching of 1420CZ aluminium lithium alloys type provided in an embodiment of the present invention, two are arranged
The operation of secondary small lot, first time small lot trial-production production close stove using two kinds of specifications (XC241-6, XC212-34) of 1420CZ and quench
Fire, total weight about 300kg, hardening heat are 450 DEG C, and a batch is 7A09T6 section bars before shove charge, and hardening heat is 470 DEG C.Into
Before stove, 430 DEG C are first cooled to hereinafter, the temperature in each area is (from bottom to top) before practical shove charge：1st area, 430 DEG C -2 area
422 DEG C of 413 DEG C-control zone, 425 DEG C -3 area, 425 DEG C -4 area；After shove charge, each area's temperature declines by a small margin, respectively from lower and
On)：407 DEG C of 1st area, 413 DEG C -2 412 DEG C-control zone in area, 411 DEG C -3 area, 413 DEG C -4 area.In actual mechanical process, due to
Consider the alloy heat transfer is fast and less two factors of batch, for temperature is prevented to be flushed to 445 DEG C or more rapidly in a short time,
When determining control point temperature, control point temperature is scheduled on 440 DEG C first, control point temperature is moved closer in each area's instrument temperature
When, control point temperature is stepped up to 445 DEG C.Temperature is effectively controlled at 445 DEG C or so.This experiment is surveyed using strip
Temperature amounts to 70min from heat preservation is warming up to, and the metal temperature for being tested material is as shown in table 1：
1 thermometric of table records
As can be seen from Table 1, after the about 20min that heats up, tested 2,3 points of material temperature has reached 450 DEG C ± 5 DEG C, and only 1 point is poored 2
DEG C, according to reason after about 20min is kept the temperature, you can add into soaking time.And this will heat up the time and is set to 40min, soaking time
It is set to 30min, altogether 70min.
The material surface, the only slight stain in surface are observed after coming out of the stove, the blackspot substantially without large area aggregation exists.
It is sampled after the timeliness of laboratory, then feed technique Spot detection its performance, testing result are as shown in table 2：
2 finished product mechanical property of table
As can be seen from Table 2, for both the above specification after soaking time to 30min is shortened, mechanical property is still reachable
Standard requirement, and surplus capacity is larger.
Pass through this experiment, it is contemplated that heating-up time 40min, and practical alloy after the about 20min that heats up is substantially
Reach hardening heat, it is contemplated that shortening the heating-up time, to improve its surface quality in subsequent production trial-production.
Second of small lot trial-production production still closes stove quenching using two kinds of specifications (XC241-6, XC212-34) of 1420CZ,
Total weight about 200kg, hardening heat are 450 DEG C, and a batch is 7A04T6 section bars before shove charge, and hardening heat is 470 DEG C.Into stove it
Before, 430 DEG C are first cooled to hereinafter, the temperature in each area is (from bottom to top) before practical shove charge：1st area, 427 DEG C -2 area 425
DEG C -427 DEG C of 429 DEG C -3 area of control zone, 427 DEG C -4 area；After shove charge, each area's temperature declines by a small margin, respectively from lower and
On)：414 DEG C of 1st area, 414 DEG C -2 420 DEG C-control zone in area, 420 DEG C -3 area, 421 DEG C -4 area.In actual mechanical process, due to
Consider the alloy heat transfer is fast and less two factors of batch, for temperature is prevented to be flushed to 445 DEG C or more rapidly in a short time,
When determining control point temperature, control point temperature is scheduled on 440 DEG C, since this production batch is less, in each area's instrument temperature
Degree quickly reaches 445 DEG C (including control point temperature), about 447.3 DEG C of highest.This experiment is using strip thermometric, from being warming up to
Heat preservation amounts to 50min, and the metal temperature for being tested material is as shown in table 3：
3 thermometric of table records
As can be seen from Table 3, after the about 20min that heats up, material temperature 1 is tested, reached 445 DEG C, therefore in heating about at 2,3 points
After 20min, you can add into soaking time.Soaking time is set to 30min by this, altogether 50min.
Observe the material surface after coming out of the stove, surface only particular is with the presence of stain (expect by the gross there are about two at), other places
Surface quality is preferable.
It is sampled after the timeliness of laboratory, then feed technique Spot detection its performance, testing result are as shown in table 4：
4 finished product mechanical property of table
As can be seen from Table 4, both the above specification is shortening the heating-up time to 20min, and soaking time foreshortens to 30min
Afterwards, mechanical property is still up to standard requirement, and surplus capacity is larger.
Wherein,
Macro morphology：Fig. 1 is shown to be the deep sample of blackspot, and macroscopic observation in the sample surfaces as it can be seen that locally deposit
In the more band-like blackspot region along the direction of extrusion, and there are more black punctate substance, macro morphology is as shown in Figure 1.
Macroscopic observation：In stereoscopic Microscopic observation, shown in the sample blackspot pattern as Fig. 2 and Fig. 3, known by Fig. 2 and Fig. 3, it should
There are attachment, blackspot nearby has no apparent injury mark in sample blackspot region.
Scanning electron microscopic observation：Two sample color spot sector scanning Electronic Speculum patterns are shown in Fig. 4 and Fig. 5.By Fig. 4 and Fig. 5 it is found that the sample
Product blackspot region is in high-temperature oxydation pattern；The sample stain is in mud line shape erosion profile.
Energy spectrum analysis：Power spectrum the results are shown in Table 5- tables 6, wherein, table 5 is the energy stave of Fig. 6, and table 6 is the energy stave of Fig. 7.It should
Sample blackspot region is mainly containing the elements such as O, Mg (about 12%), Al and a small amount of S, Cl, K, Ca；Stain mainly contains O, Mg (about
16%), Al and a small amount of Ca elements.
5 1# sample blackspots region power spectrum result of table
6 1# sample stains region power spectrum result of table
Microscopic examination：High power sample is milled into the sample blackspot, stain position are separately sampled, it is micro- group typical
It knits and sees Fig. 8,9,10.
Sample has no burn-off phenomenon it can be seen from Fig. 8,9,10, the metallurgical imperfections such as has no oxidation film, is mingled with.Sample table
There is de- lithium layer (thickness about 50um) in layer, it is slightly partially thick compared with normal region to take off lithium layer grain structure.There are band-like black patch positions
Tissue and normal portions have no notable difference (see Fig. 9,10)；Black spot defect is in the etch pit pattern (see Fig. 8) of recess, depth
About 10um.
1420CZ aluminium lithium alloy Surface of profile black and white spots are in aluminium lithium alloy and take off lithium layer surface layer, and blackspot region has no tissue
Difference does not also go deep into metallic matrix, and power spectrum micro-zone analysis blackspot position is containing elements such as O, C, Mg.
Specific case used herein is expounded the principle of the present invention and embodiment, and above example is said
The bright method and its core concept for being merely used to help understand the present invention.It should be pointed out that the ordinary skill for the art
For personnel, without departing from the principle of the present invention, can also to the present invention some improvement and modification can also be carried out, these improvement
It is also fallen within the protection scope of the claims of the present invention with modification.
Claims (10)
1. a kind of process for quenching of 1420CZ aluminium lithium alloys type, which is characterized in that glowing furnace is respectively an area, two from bottom to top
Area, control zone, 3rd area and 4th area,
During shove charge, the temperature in an area is 413 DEG C -430 DEG C, and the temperature in 2nd area is 412 DEG C -413 DEG C, the control zone
Temperature for 411 DEG C -425 DEG C, the temperature in 3rd area is 413 DEG C -425 DEG C, and the temperature in 4th area is 407 DEG C -422 DEG C,
After shove charge, control point temperature is set as 440 DEG C first, as an area, 2nd area, the control zone, described three
When the temperature in area and 4th area is 440 DEG C ± 2 DEG C, the control point temperature is improved several times up to improving to 445 DEG C, when
One area, 2nd area, the control zone, 3rd area and 4th area temperature when being 445 DEG C ± 2 DEG C, stop plus
Heat heating, is changed to keep the temperature,
The summation of the time of the heating and the time of the heat preservation are 50 minutes to 70 minutes.
2. the process for quenching of 1420CZ aluminium lithium alloys type according to claim 1, which is characterized in that temperature tool during shove charge
Body is, before shove charge by in-furnace temperature control below 430 DEG C.
3. the process for quenching of 1420CZ aluminium lithium alloys type according to claim 2, which is characterized in that temperature tool during shove charge
Body is,
Before shove charge, the temperature in an area is 430 DEG C, and the temperature in 2nd area is 413 DEG C, and the temperature of the control zone is 425
DEG C, the temperature in 3rd area is 425 DEG C, and the temperature in 4th area is 422 DEG C,
After shove charge, the temperature in an area is 413 DEG C, and the temperature in 2nd area is 412 DEG C, and the temperature of the control zone is 411
DEG C, the temperature in 3rd area is 413 DEG C, and the temperature in 4th area is 407 DEG C.
4. the process for quenching of 1420CZ aluminium lithium alloys type according to claim 1, which is characterized in that the control point temperature
It is improved several times until improving to 445 DEG C, specifically, improving control every time at 1 DEG C -2 DEG C.
5. the process for quenching of 1420CZ aluminium lithium alloys type according to claim 1, which is characterized in that the time of the heating
It is 20 minutes, the time of the heat preservation is 30 minutes, alternatively,
The time of the heating is 40 minutes, and the time of the heat preservation is 30 minutes.
6. a kind of process for quenching of 1420CZ aluminium lithium alloys type, which is characterized in that glowing furnace is respectively an area, two from bottom to top
Area, control zone, 3rd area and 4th area,
During shove charge, the temperature in an area is 414 DEG C -427 DEG C, and the temperature in 2nd area is 420 DEG C -425 DEG C, the control zone
Temperature for 420 DEG C -429 DEG C, the temperature in 3rd area is 421 DEG C -427 DEG C, and the temperature in 4th area is 414 DEG C -427 DEG C,
After shove charge, control point temperature is set as 440 DEG C first, as an area, 2nd area, the control zone, described three
When the temperature in area and 4th area is 440 DEG C ± 2 DEG C, the control point temperature is improved several times up to improving to 445 DEG C, when
One area, 2nd area, the control zone, 3rd area and 4th area temperature when being 445 DEG C ± 3 DEG C, stop plus
Heat heating, is changed to keep the temperature,
The summation of the time of the heating and the time of the heat preservation are 50min ± 5min.
7. the process for quenching of 1420CZ aluminium lithium alloys type according to claim 6, which is characterized in that temperature tool during shove charge
Body is, before shove charge by in-furnace temperature control below 430 DEG C.
8. the process for quenching of 1420CZ aluminium lithium alloys type according to claim 7, which is characterized in that temperature tool during shove charge
Body is,
Before shove charge, the temperature in an area is 427 DEG C, and the temperature in 2nd area is 425 DEG C, and the temperature of the control zone is 429
DEG C, the temperature in 3rd area is 427 DEG C, and the temperature in 4th area is 427 DEG C,
After shove charge, the temperature in an area is 414 DEG C, and the temperature in 2nd area is 420 DEG C, and the temperature of the control zone is 420
DEG C, the temperature in 3rd area is 421 DEG C, and the temperature in 4th area is 414 DEG C.
9. the process for quenching of 1420CZ aluminium lithium alloys type according to claim 6, which is characterized in that the control point temperature
It is improved several times until improving to 445 DEG C, specifically, improving control every time at 1 DEG C -2 DEG C.
10. the process for quenching of 1420CZ aluminium lithium alloys type according to claim 6, which is characterized in that the heating when
Between for 20 minutes, the time of the heat preservation is 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463731.XA CN108165904B (en) | 2017-12-28 | 2017-12-28 | Quenching method of 1420CZ aluminum lithium alloy section |
Applications Claiming Priority (1)
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| CN109468554A (en) * | 2018-11-19 | 2019-03-15 | 广西柳州银海铝业股份有限公司 | The removing method of cold rolling aluminium flanging part annealing hickie |
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| CN105483576A (en) * | 2015-12-18 | 2016-04-13 | 西南铝业（集团）有限责任公司 | Surface black and white spot control method in production of aluminum lithium alloy profile |
| CN105506236A (en) * | 2015-12-18 | 2016-04-20 | 西南铝业（集团）有限责任公司 | Control method for black and white spots on surfaces of alloy profiles |
| CN106834987A (en) * | 2016-12-29 | 2017-06-13 | 西南铝业（集团）有限责任公司 | A kind of method of reduction 2A50 alloy extrusion bar coarse grain ring depth |
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| CN105369170A (en) * | 2015-12-18 | 2016-03-02 | 西南铝业（集团）有限责任公司 | Aluminum lithium alloy profile black and white spot controlling method |
| CN105483576A (en) * | 2015-12-18 | 2016-04-13 | 西南铝业（集团）有限责任公司 | Surface black and white spot control method in production of aluminum lithium alloy profile |
| CN105506236A (en) * | 2015-12-18 | 2016-04-20 | 西南铝业（集团）有限责任公司 | Control method for black and white spots on surfaces of alloy profiles |
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| CN109468554A (en) * | 2018-11-19 | 2019-03-15 | 广西柳州银海铝业股份有限公司 | The removing method of cold rolling aluminium flanging part annealing hickie |
| CN109468554B (en) * | 2018-11-19 | 2020-12-01 | 广西柳州银海铝业股份有限公司 | Method for eliminating white spot of cold-rolled aluminum coil edge annealing |
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