CN107523768A - A kind of two-stage time effect processing method for aluminium alloy - Google Patents
A kind of two-stage time effect processing method for aluminium alloy Download PDFInfo
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- CN107523768A CN107523768A CN201710661513.0A CN201710661513A CN107523768A CN 107523768 A CN107523768 A CN 107523768A CN 201710661513 A CN201710661513 A CN 201710661513A CN 107523768 A CN107523768 A CN 107523768A
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- predetermined temperature
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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
- 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
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Abstract
The invention discloses a kind of two-stage time effect processing method for aluminium alloy, it is related to Field of Heat-treatment, its Al alloy parts being used for after solution treatment, the two-stage time effect processing method includes：The Al alloy parts are put into the heating furnace with the first predetermined temperature；Cut off the power supply of the heating furnace；The Al alloy parts are cooled to the second predetermined temperature in the heating furnace with stove；The Al alloy parts are kept in the second predetermined temperature to scheduled duration；The Al alloy parts are taken out, to cause it to naturally cool to room temperature in atmosphere；Wherein, the scope of first predetermined temperature is 230 DEG C~250 DEG C, and the aluminium alloy is ZL101.The present invention can shorten the process time, to obtain the Al alloy parts that structural homogenity is good, elongation percentage is high, higher suitable for toughness reguirements.
Description
Technical field
The present invention relates to Field of Heat-treatment, more particularly to a kind of two-stage time effect processing method for aluminium alloy.
Background technology
ZL101 belongs to Al-Si-Mg systems cast aluminium alloy gold.The reinforcing generally use T6 heat treatment methods of cast aluminium alloy gold, i.e.,
Solution treatment adds artificial aging to handle.Wherein, the process of T6 heat treatment methods mainly includes：Heating, insulation, quenching, when
Effect.Solution treatment is silicon addition, Mg etc. is dissolved at high temperature in parent metal aluminium to form solid solution.By solid solution
Quickly cooled down after insulation, obtain supersaturated solid solution, while increased the dislocation density of parent metal aluminium and distortion of lattice occurs,
So as to the intensity and hardness of a certain degree of raising aluminium alloy.But simple solution treatment reinforcing effect is limited, Cast aluminium alloy
Gold goes for high intensity, it is necessary to coordinates effective ageing strengthening to handle.Ageing Treatment is the satiety for making to obtain in solution treatment
Heat resolve, diffusion-precipitation are mutually hard so as to further improve the intensity of cast aluminium alloy gold under a certain lower temperature with solid solution
Degree.The form of this disperse phase and distribution play a decisive role to the intensity of cast aluminium alloy gold.
But in the prior art, the All Time of ZL101 Ageing Treatment, which generally requires 10 to 11 hours, to be obtained
To required aluminium alloy.Time-consuming so long aging time, the structural homogenity of obtained aluminium alloy is but still poor,
Comprehensive mechanical performance is also poor, and elongation percentage be often difficult to it is up to standard.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of two-stage time effect processing method for aluminium alloy, so as to shorten
Process time, to obtain the Al alloy parts that structural homogenity is good, elongation percentage is high, higher suitable for toughness reguirements.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of two-stage time effect processing method for aluminium alloy, its Al alloy parts being used for after solution treatment,
The two-stage time effect processing method includes：
The Al alloy parts are put into the heating furnace with the first predetermined temperature；
Cut off the power supply of the heating furnace；
The Al alloy parts are cooled to the second predetermined temperature in the heating furnace with stove；
The Al alloy parts are kept in the second predetermined temperature to scheduled duration；
The Al alloy parts are taken out, to cause it to naturally cool to room temperature in atmosphere；
Wherein, the scope of first predetermined temperature is 230 DEG C~250 DEG C, and the aluminium alloy is ZL101.
Preferably, first predetermined temperature is 240 DEG C.
Preferably, the scope of second predetermined temperature is 150 DEG C~170 DEG C.
Preferably, second predetermined temperature is 160 DEG C.
Preferably, the scope of the scheduled duration is 1h~2h.
Preferably, the scheduled duration is 1.5h.
Compared with prior art, beneficial effects of the present invention are：Al alloy parts are directly placed into by the present invention to have heated up
To the heating furnace of the first predetermined temperature, the stress formed in its solution treatment can be at utmost discharged, and can be eliminated solid
The harm that long-time room temperature is parked after molten processing, obtain the higher spread.Moreover, Al alloy parts are in the process to cool with stove
In extraneous need not provide electric energy, save energy consumption, reduce production cost.Also, Al alloy parts are in the mistake to cool with stove
The distribution of disperse phase is further improved in journey.Then, by Al alloy parts in the low temperature aging of the second predetermined temperature it is further
The final disperse phase state of stable inside workpiece and distribution, improve workpiece strength.
In preferable scheme, it is 1h~2h that the present invention, which keeps the scope of the scheduled duration of the second predetermined temperature,.During insulation
Between shortening cause whole ageing process time greatly shorten, improve treatment effeciency.
In preferable scheme, by aging treatment method of the present invention processing after workpiece elongation percentage can reach 10% with
On, the workpiece after processing is completely suitable for the higher application scenario of toughness reguirements.
Brief description of the drawings
Some specific embodiments of the present invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is a kind of flow chart of two-stage time effect processing method for aluminium alloy of the invention.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings.Herein it should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not form limitation of the invention.It is in addition, disclosed below
As long as each embodiment of the invention in involved technical characteristic do not form conflict can each other and be mutually combined.
A kind of two-stage time effect processing method for aluminium alloy of the present invention, its aluminium being used for after solution treatment close
Metal working part.And the two-stage time effect processing method of the present invention is applied to code name ZL101 (ZAlSi7Mg alloys) aluminium alloy.It is first
First, before Ageing Treatment is carried out, Al alloy parts of the invention need first to carry out solution treatment.Here solution treatment can be with
It is identical with solution treatment of the prior art.Wherein one in the prior art, the solution treatment mode to Al alloy parts is：
The temperature range of Al alloy parts to 535 ± 5 DEG C is heated, and is incubated 5h to 9h.Then, it is Al alloy parts are cold by hot water
But.
As shown in figure 1, the Al alloy parts after above solution treatment, its two-stage time effect processing method mainly with
Lower step：
Step 101：The Al alloy parts are put into the heating furnace with the first predetermined temperature；
Step 103：Cut off the power supply of the heating furnace；
Step 105：The Al alloy parts are cooled to the second predetermined temperature in the heating furnace with stove；
Step 107：The Al alloy parts are kept in the second predetermined temperature to scheduled duration；
Step 109：The Al alloy parts are taken out, to cause it to naturally cool to room temperature in atmosphere.
In step 101, Al alloy parts are directly placed into by the present invention to be warming up in the heating furnace of the first predetermined temperature,
The stress formed in its solution treatment can be at utmost discharged, and the danger that long-time room temperature after solution treatment is parked can be eliminated
Evil, obtains the higher spread.Then, in step 103, the power supply of heating furnace has directly been cut off, to cause in subsequent step 105
In, Al alloy parts extraneous need not provide electric energy during cooling with stove, so as to save energy consumption, reduce and be produced into
This.And in step 105, Al alloy parts further improve the distribution of disperse phase during cooling with stove.Then in step
In rapid 107, Al alloy parts final disperse phase of further stable inside workpiece in the low temperature aging of the second predetermined temperature
State and distribution, improve workpiece strength., can after the high-temperature aging by step 101 respectively and the low temperature aging of step 107
Obtain closing compared with high diffusive degree, the aluminium that disperse phase is evenly distributed, uniform texture is careful, material elongation percentage is higher, toughness is higher
Metal working part.
Specifically, in an embodiment of the present invention, the scope of first predetermined temperature is 230 DEG C~250 DEG C.First is pre-
Constant temperature degree can be any temperature value between 230 DEG C to 250 DEG C.Preferably, first predetermined temperature can be 240 DEG C.
Specifically, in an embodiment of the present invention, the scope of second predetermined temperature is 150 DEG C~170 DEG C.Second temperature
Degree can be any temperature value between 150 DEG C to 170 DEG C.Preferably, second predetermined temperature can be 160 DEG C.
Specifically, in an embodiment of the present invention, the scope of the scheduled duration is 1h~2h.The scheduled duration of insulation can
Think 1h to any one duration between 2h.Preferably, the scheduled duration is 1.5h.
Therefore, the two-stage time effect processing method of the present invention is combined with preferable numerical value, specific two-stage time effect processing side
Method is：The Al alloy parts are put into (heating furnace stove empty first is warming up to 230 DEG C in 230 DEG C~250 DEG C of heating furnace
~250 DEG C)；Cut off the power supply of the heating furnace；The Al alloy parts in the heating furnace with stove be cooled to 150 DEG C~
170℃；By Al alloy parts in 150 DEG C~170 DEG C scope inside holding 1h-2h；Al alloy parts air is cooled down.
In above two-stage time effect processing method, because the first predetermined temperature (namely 230 DEG C~250 DEG C) is higher, because
This Al alloy parts can at utmost discharge the stress formed in solution treatment, and can eliminate long-time after solution treatment
The harm that room temperature is parked, obtain the higher spread.And Al alloy parts extraneous need not provide during cooling with stove
Electric energy, energy consumption is saved, reduce production cost.Also, Al alloy parts further improve disperse during cooling with stove
The distribution of phase.Then, by Al alloy parts in the low temperature aging of the second predetermined temperature (also with regard to 150 DEG C~170 DEG C) further
The final disperse phase state of stable inside workpiece and distribution, improve workpiece strength.Moreover, the shortening of soaking time causes entirely
The time of ageing process greatly shortens, and improves treatment effeciency.
Therefore, the testing inspection by applicant to the Al alloy parts after the method processing by the present invention, finds to adopt
More than 10% is can reach with the elongation percentage of workpiece after the process processing in the present invention, it is higher to be completely suitable for toughness reguirements
Workpiece.And the ZL101 elongation percentage after traditional T6 PROCESS FOR TREATMENTs only has 1-3% or so.
Embodiments of the present invention are explained in detail above in association with accompanying drawing, but the invention is not restricted to described implementation
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen within protection scope of the present invention.
Claims (6)
1. a kind of two-stage time effect processing method for aluminium alloy, its Al alloy parts being used for after solution treatment, its
It is characterised by, comprises the following steps：
The Al alloy parts are put into the heating furnace with the first predetermined temperature；
Cut off the power supply of the heating furnace；
The Al alloy parts are cooled to the second predetermined temperature in the heating furnace with stove；
The Al alloy parts are kept in the second predetermined temperature to scheduled duration；
The Al alloy parts are taken out, to cause it to naturally cool to room temperature in atmosphere；
Wherein, the scope of first predetermined temperature is 230 DEG C~250 DEG C, and the aluminium alloy is ZL101.
2. two-stage time effect processing method according to claim 1, it is characterised in that：First predetermined temperature is 240 DEG C.
3. two-stage time effect processing method according to claim 1 or 2, it is characterised in that：The model of second predetermined temperature
Enclose for 150 DEG C~170 DEG C.
4. two-stage time effect processing method according to claim 3, it is characterised in that：Second predetermined temperature is 160 DEG C.
5. the two-stage time effect processing method according to any one of claim 1-4, it is characterised in that：The scheduled duration
Scope is 1h~2h.
6. two-stage time effect processing method according to claim 5, it is characterised in that：The scheduled duration is 1.5h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661513.0A CN107523768A (en) | 2017-08-04 | 2017-08-04 | A kind of two-stage time effect processing method for aluminium alloy |
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| CN201710661513.0A CN107523768A (en) | 2017-08-04 | 2017-08-04 | A kind of two-stage time effect processing method for aluminium alloy |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005068678A1 (en) * | 2004-01-15 | 2005-07-28 | Ryobi Ltd. | Heat treatment method for aluminum die-cast product |
| JP2005272966A (en) * | 2004-03-25 | 2005-10-06 | Aisin Seiki Co Ltd | Aluminum alloy for semisolid casting and method for manufacturing casting |
| CN100381230C (en) * | 2003-11-19 | 2008-04-16 | 马自达汽车株式会社 | Method for producing light-alloy casting |
| JP2009203516A (en) * | 2008-02-27 | 2009-09-10 | Aisin Seiki Co Ltd | Aluminum alloy |
| CN103725998A (en) * | 2013-12-20 | 2014-04-16 | 合肥工业大学 | Method for enhancing strength of Al-Cu-Mg alloy |
| CN104561857A (en) * | 2014-12-30 | 2015-04-29 | 江苏理工学院 | Two-step aging heat treatment technology for aluminum alloy |
-
2017
- 2017-08-04 CN CN201710661513.0A patent/CN107523768A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381230C (en) * | 2003-11-19 | 2008-04-16 | 马自达汽车株式会社 | Method for producing light-alloy casting |
| WO2005068678A1 (en) * | 2004-01-15 | 2005-07-28 | Ryobi Ltd. | Heat treatment method for aluminum die-cast product |
| JP2005272966A (en) * | 2004-03-25 | 2005-10-06 | Aisin Seiki Co Ltd | Aluminum alloy for semisolid casting and method for manufacturing casting |
| JP2009203516A (en) * | 2008-02-27 | 2009-09-10 | Aisin Seiki Co Ltd | Aluminum alloy |
| CN103725998A (en) * | 2013-12-20 | 2014-04-16 | 合肥工业大学 | Method for enhancing strength of Al-Cu-Mg alloy |
| CN104561857A (en) * | 2014-12-30 | 2015-04-29 | 江苏理工学院 | Two-step aging heat treatment technology for aluminum alloy |
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