CN107326312A - The heat treatment method and production method of extraordinary temperature controlling instruments 6A02 forging - Google Patents
The heat treatment method and production method of extraordinary temperature controlling instruments 6A02 forging Download PDFInfo
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- CN107326312A CN107326312A CN201710792341.0A CN201710792341A CN107326312A CN 107326312 A CN107326312 A CN 107326312A CN 201710792341 A CN201710792341 A CN 201710792341A CN 107326312 A CN107326312 A CN 107326312A
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- China
- Prior art keywords
- forging
- heat treatment
- temperature controlling
- treatment method
- controlling instruments
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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
- C22F1/05—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
-
- 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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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The present invention provides a kind of heat treatment method of extraordinary temperature controlling instruments 6A02 forging, and the heat treatment method is quenched to the forging after heats forged first；Then Ageing Treatment is carried out to the forging after quenching, aging temp is 155 165 DEG C, air thermal preservation 13 hours, total heating 13 15 hours.It is of the invention to use yield strength, tensile strength and elongation percentage that above-mentioned system of ageing treatment make forging apparently higher than standard value, so improving 6A02 forging performance qualification rates.Present invention also offers a kind of production method of extraordinary temperature controlling instruments 6A02 forging.
Description
Technical field
The present invention relates to aluminum alloy processing technology field, forged more specifically to a kind of extraordinary temperature controlling instruments with 6A02
The heat treatment method of part, the invention further relates to a kind of production method of extraordinary temperature controlling instruments 6A02 forging.
Background technology
6A02 aluminium alloys refer to the wrought aluminium that the trade mark is 6A02, mainly for the manufacture of air material, daily living article, for building
Door and window etc..High-strength 6A02 aluminum alloy forge pieces are that Gree Electric Appliances,Inc.of ZhuHai's special air-conditioning units centrifugal compressor is used.Should
The high-strength 6A02 forging of class special type temperature controlling instruments, totally 31 kinds of forging, forging minimum thickness 40mm, maximum gauge 160mm, it is minimum outside
Footpath size Φ 180, maximum outside diameter size Φ 530, product specification is numerous；Forging performance requires higher, and product performance index height is bent
Take intensity up to 245MPa.
But, produce that such forging products qualification rate is relatively low according to original conventional production process, yield strength, elongation percentage are not
Qualification rate about 30% or so, 6 grades -8 grades of forging macroscopic coarse grain has a strong impact on forging quality and protects confession.
In summary, 6A02 forging performance qualification rates how are improved, are current those skilled in the art skills urgently to be resolved hurrily
Art problem.
The content of the invention
In view of this, it is an object of the invention to provide a kind of heat treatment method of extraordinary temperature controlling instruments 6A02 forging,
To improve 6A02 forging performance qualification rates.
Another object of the present invention is to provide a kind of production method of extraordinary temperature controlling instruments 6A02 forging, to improve
6A02 forging performance qualification rates.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of heat treatment method of extraordinary temperature controlling instruments 6A02 forging, including step：
1) forging after heats forged is quenched；
2) Ageing Treatment is carried out to the forging after quenching, aging temp is 155-165 DEG C, and air thermal preservation 13 hours is total to add
It is hot 13-15 hours.
It is preferred that, in above-mentioned heat treatment method, the step 1) in the hardening heat that uses for 515-525 DEG C.
It can be seen from above-mentioned technical scheme that, the heat treatment side for the extraordinary temperature controlling instruments 6A02 forging that the present invention is provided
Method is quenched to the forging after heats forged first；Then Ageing Treatment is carried out to the forging after quenching, aging temp is
155-165 DEG C, air thermal preservation 13 hours, total heating 13-15 hours.
The present invention can make the yield strength, tensile strength and elongation percentage of forging substantially high using above-mentioned system of ageing treatment
In standard value, so improving 6A02 forging performance qualification rates.
Present invention also offers a kind of production method of extraordinary temperature controlling instruments 6A02 forging, including step：
01) heats forged is carried out to ingot casting；
02) forging is machined to required size；
03) forging is heat-treated, the heat treatment is using any of the above-described kind of heat treatment method.
The production method of the present invention includes above-mentioned heat treatment method, because above-mentioned heat treatment method has the effect above, tool
The production method for having above-mentioned heat treatment method has same effect, therefore repeats no more herein.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the flow signal of the heat treatment method of extraordinary temperature controlling instruments 6A02 forging provided in an embodiment of the present invention
Figure；
Fig. 2 be the embodiment of the present invention aging temp be 160 DEG C, the Time-activity-curve of the yield strength of forging and tensile strength
Schematic diagram；
Fig. 3 be the embodiment of the present invention aging temp be 160 DEG C, the Time-activity-curve schematic diagram of the elongation percentage of forging；
Fig. 4 be the embodiment of the present invention aging temp be 177 DEG C, the Time-activity-curve of the yield strength of forging and tensile strength
Schematic diagram；
Fig. 5 be the embodiment of the present invention aging temp be 177 DEG C, the Time-activity-curve schematic diagram of the elongation percentage of forging.
Embodiment
The embodiments of the invention provide a kind of heat treatment method of extraordinary temperature controlling instruments 6A02 forging, 6A02 forgings are improved
Part properties percent of pass.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Accompanying drawing 1 is refer to, extraordinary temperature controlling instruments provided in an embodiment of the present invention is included with the heat treatment method of 6A02 forging
Step：
S1, the forging after heats forged is quenched；
S2, to after quenching forging carry out Ageing Treatment, aging temp be 155-165 (i.e. 160 ± 5) DEG C, air thermal preservation
13 hours, total heating 13-15 hours.
The present invention can make the yield strength, tensile strength and elongation percentage of forging substantially high using above-mentioned system of ageing treatment
In standard value, so improving 6A02 forging performance qualification rates.
High-strength 6A02 forging performances standard is higher, can not meet user's request using original heat treating regime, it is necessary to be directed to
User's high performance requirements seek more rational heat treating regime.The present invention is different by carrying out heat treatment process test, research
Influence of the heat treating regime to forging tissue and performance.
Testing program：The ingot castings of Φ 162 flatten the side of beating to size by forging 2：350+5×220+5×50+5.2# glowing furnaces 520
± 5 DEG C, air thermal preservation 180 minutes quenches water temperature：30-40℃.Forging sampling after quenching send laboratory to do aging technique examination
Test, test sampling requirement and system are as shown in table 1 below：
Table 1 --- heat treatment test scheme
Result of the test：Forging Time-activity-curve is as shown in accompanying drawing 2- Fig. 5：
160 DEG C of Time-activity-curves in Fig. 2 and Fig. 3 show, aging time was at 13 hours, 15 hours, 18 hours, and forging is bent
Intensity, tensile strength and elongation percentage are taken apparently higher than standard value, the performance of forging is qualified after 13 hours, and surplus capacity is larger, bent
Line trend stability.
177 DEG C of Time-activity-curves in Fig. 4 and Fig. 5 show, the yield strength of forging, tensile strength apparently higher than standard value,
But forging elongation percentage surplus capacity is smaller.
Comprehensive analysis above Time-activity-curve result, forging institution of prescription is chosen to be：160 ± 5 DEG C, air thermal preservation 13 hours.
Total heating 13-15 hours.
In order to further optimize the hardening heat used in above-mentioned technical proposal, step S1 for 520 ± 5 (i.e. 515-525)
DEG C, air thermal preservation time, quenching water temperature are performed by code.Forging can be made to reach preferable hardness requirement.
The embodiment of the present invention additionally provides a kind of production method of extraordinary temperature controlling instruments 6A02 forging, including step：
S01, to ingot casting carry out heats forged；
S02, forging is machined to required size；
S03, forging is heat-treated, the heat treatment uses the heat treatment method that any of the above-described embodiment is provided.
The production method of the present invention includes above-mentioned heat treatment method, improves 6A02 forging performance qualification rates, its advantage is
Brought by above-mentioned heat treatment method, specifically refer to part related in above-described embodiment, just repeat no more herein.
Existing project, which is developed, to have succeeded, and do not occurred forging since the project implementation process optimization reports by the gross because performance is unqualified
Useless, forging performance is significantly lifted, properties percent of pass 100%, meets user's high performance requirements, and forging tissue has larger improvement.
Since the sizing of product technique in November, 41 batch forging of delivery, 24 batch forging macrostructure no defects, 16 batches have been produced altogether
Secondary forging low power edge coarse-grain, edge coarse-grain does not influence part to process, and 1 batch is had one's face covered with coarse-grain, but performance meets and required.It is complete
Into project check index.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (3)
1. a kind of heat treatment method of extraordinary temperature controlling instruments 6A02 forging, it is characterised in that including step：
1) forging after heats forged is quenched；
2) Ageing Treatment is carried out to the forging after quenching, aging temp is 155-165 DEG C, and air thermal preservation 13 hours always heats 13-
15 hours.
2. heat treatment method according to claim 1, it is characterised in that the step 1) in the hardening heat that uses for
515-525℃。
3. a kind of production method of extraordinary temperature controlling instruments 6A02 forging, it is characterised in that including step：
01) heats forged is carried out to ingot casting；
02) forging is machined to required size；
03) forging is heat-treated, the heat treatment uses heat treatment method as claimed in claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710792341.0A CN107326312A (en) | 2017-09-05 | 2017-09-05 | The heat treatment method and production method of extraordinary temperature controlling instruments 6A02 forging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710792341.0A CN107326312A (en) | 2017-09-05 | 2017-09-05 | The heat treatment method and production method of extraordinary temperature controlling instruments 6A02 forging |
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| Publication Number | Publication Date |
|---|---|
| CN107326312A true CN107326312A (en) | 2017-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710792341.0A Pending CN107326312A (en) | 2017-09-05 | 2017-09-05 | The heat treatment method and production method of extraordinary temperature controlling instruments 6A02 forging |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010189750A (en) * | 2009-02-20 | 2010-09-02 | Kobe Steel Ltd | High-strength aluminum alloy wire and rod material excellent in softening resistance and method of manufacturing the same |
-
2017
- 2017-09-05 CN CN201710792341.0A patent/CN107326312A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010189750A (en) * | 2009-02-20 | 2010-09-02 | Kobe Steel Ltd | High-strength aluminum alloy wire and rod material excellent in softening resistance and method of manufacturing the same |
Non-Patent Citations (1)
| Title |
|---|
| 邹京斌: ""6A02铝合金自由锻件工艺研究"", 《轻合金加工技术》 * |
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Application publication date: 20171107 |
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