CN107604285B - A kind of beta titanium alloy product forging method - Google Patents
A kind of beta titanium alloy product forging method Download PDFInfo
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- CN107604285B CN107604285B CN201711046465.0A CN201711046465A CN107604285B CN 107604285 B CN107604285 B CN 107604285B CN 201711046465 A CN201711046465 A CN 201711046465A CN 107604285 B CN107604285 B CN 107604285B
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- 238000005242 forging Methods 0.000 title claims abstract description 134
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 102
- 239000000956 alloy Substances 0.000 title claims abstract description 102
- 229910001040 Beta-titanium Inorganic materials 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 98
- 238000001816 cooling Methods 0.000 claims abstract description 16
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims abstract description 11
- 238000003303 reheating Methods 0.000 claims abstract description 11
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000009466 transformation Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000008294 cold cream Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The present invention, which discloses, is related to alloy forging technical field, especially a kind of beta titanium alloy product forging method comprising following steps: a, beta-titanium alloy cylinder base being put into heating furnace and is heated；B, beta-titanium alloy cylinder base after the heating time is up, come out of the stove immediately by beta-titanium alloy cylinder base, and beta-titanium alloy cylinder base is forged, One-time forging slab is obtained；C, One-time forging slab is cooled to room temperature；D, One-time forging slab after cooling is put into heating furnace and carries out reheating；E, One-time forging slab is forged, obtains two fire forging slabs；F, two fire forging slabs are put into heating furnace and are heated three times；G, two fire forging slabs are forged, obtains three fire forging slabs；H, step f, step g are repeated, until obtaining beta titanium alloy product.The beta titanium alloy product forging method that the present invention provides a kind of processes is few, forging is high-efficient.
Description
Technical field
The present invention relates to alloy forging technical field, especially a kind of beta titanium alloy product forging method.
Background technique
Beta-titanium alloy, annealing are air-cooled to the titanium alloy that room temperature is almost all β phase, and the major advantage of beta-titanium alloy is that have very well
It is cold cream and cold formability energy, cold rolling reduction is up to 90% or more.The sheet metal part of medium complexity can be shaped at room temperature, and
Rivet and bolt can be cold worked.By ageing treatment, intensity can be normally reached 1000MPa or more, have excellent weldability
Energy and corrosion resistance.
The forging temperature of beta-titanium alloy is usually chosen in above 30-50 DEG C of phase transition temperature, it is therefore an objective to avoid the crystal grain under high temperature
Fast growth, crystal grain fast growth seriously affect the intensity and plasticity of beta titanium alloy product.Since beta-titanium alloy intensity is high, in phase transformation
Point temperature nearby forged to capacity of equipment require it is relatively high, while in order to avoid cracking, Dan Huoci total deformation is also smaller,
To considerably increase forging process, the forging processing efficiency of beta titanium alloy product is reduced.
Summary of the invention
The technical problems to be solved by the invention are to provide the beta titanium alloy product forging side that a kind of process is few, forging is high-efficient
Method.
The present invention solves a kind of beta titanium alloy product forging method used by its technical problem, includes the following steps:
A, beta-titanium alloy cylinder base is put into heating furnace and is heated, the heating temperature of heating furnace is than beta-titanium alloy circle
The phase point temperature of cylindricality base is 350-400 DEG C high；
B, the beta-titanium alloy cylinder base in step a after the heating time is up, come out of the stove immediately by beta-titanium alloy cylinder base, by β titanium
Alloy cylinder base is forged, and One-time forging slab is obtained, and stops phase transformation of the temperature than the beta-titanium alloy cylinder base of forging
Point temperature is 100-150 DEG C high, and One-time forging slab is at least compared with beta-titanium alloy cylinder base in the deflection of thickness direction
60%；
C, One-time forging slab is cooled to room temperature；
D, One-time forging slab after cooling is put into heating furnace and carries out reheating, the reheating temperature of heating furnace
Phase point temperature than the beta-titanium alloy cylinder base is 100-150 DEG C high；
E, after One-time forging slab heating time arrives in step d, One-time forging slab is come out of the stove immediately, by One-time forging slab
It is forged, obtains two fire forging slabs；
F, two fire forging slabs are put into heating furnace and are heated three times, the heating temperature three times of heating furnace is than the β titanium
The phase point temperature of alloy cylinder base is 50-100 DEG C high；
G, in step f after the heating time is up, two fire forging slabs are come out of the stove immediately, and two fire forging slabs are forged, are obtained
To three fire forging slabs；
H, step f, step g are repeated, until obtaining beta titanium alloy product.
Further, in step a, heating time is 0.4-0.6 times of beta-titanium alloy cylinder base diameter, when heating
Between unit be min.
Further, One-time forging slab is passed through cooling by water to room temperature in step c.
Further, heating time is 0.5-0.7 times of One-time forging slab thickness, heating time in step d
Unit is min.
Further, heating time is 0.5-0.7 times of two fire forging slab thicknesses, heating time in step f
Unit is min.
It is heated the beneficial effects of the present invention are: beta-titanium alloy cylinder base is put into heating furnace first, heating furnace
Heating temperature is 350-400 DEG C higher than the phase point temperature of the beta-titanium alloy cylinder base, and beta-titanium alloy cylinder base is come out of the stove immediately, will
Beta-titanium alloy cylinder base is forged, and One-time forging slab is obtained, One-time forging slab compared with beta-titanium alloy cylinder base,
The deflection of thickness direction is at least 60%, so that isometric group of β containing a kind of largely needle-shaped distortion in One-time forging slab
It knits, is obtained in a large amount of practices and practice, the β equiaxed structure of the needle-shaped distortion can absorb a large amount of in high-temperature heating process
Energy is just slowly decomposed, and restrained effectively growing up for initial grain size so that One-time forging slab is in hot conditions
Under (above 100-300 DEG C of phase point temperature), initial grain size still will not occur sharply to grow up, and forge to ensure that
The intensity and plasticity of beta titanium alloy product, enable beta titanium alloy product to be forged at high temperature, significantly improve Dan Huoci's
Blank deflection reduces the process of beta titanium alloy product forging, improves the forging efficiency of beta titanium alloy product.
Detailed description of the invention
Fig. 1 is a kind of crystal phase schematic diagram of One-time forging slab；
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
A kind of beta titanium alloy product forging method of the present invention, includes the following steps:
A, beta-titanium alloy cylinder base is put into heating furnace and is heated, the heating temperature of heating furnace is than beta-titanium alloy circle
The phase point temperature of cylindricality base is 350-400 DEG C high, and heating time is 0.4-0.6 times of beta-titanium alloy cylinder base diameter, when heating
Between unit be min；
B, the beta-titanium alloy cylinder base in step a after the heating time is up, come out of the stove immediately by beta-titanium alloy cylinder base, by β titanium
Alloy cylinder base is forged, and One-time forging slab is obtained, and stops phase transformation of the temperature than the beta-titanium alloy cylinder base of forging
Point temperature is 100-150 DEG C high, and One-time forging slab is at least compared with beta-titanium alloy cylinder base in the deflection of thickness direction
60%, it that is to say that, in thickness direction, the size of One-time forging slab is less than the 40% of beta-titanium alloy cylinder base size, by big
It is obtained in amount practice and test, for One-time forging slab compared with beta-titanium alloy cylinder base, deflection is bigger, One-time forging slab
The quantity of the β equiaxed structure of the needle-shaped distortion contained is more, is more conducive to forge One-time forging slab；
C, cooling efficiency be can be improved by water cooling one by cooling by water to room temperature for the cooling of One-time forging slab,
Two can reinforce One-time forging slab；
D, One-time forging slab after cooling is put into heating furnace and carries out reheating, the reheating temperature of heating furnace
Phase point temperature than the beta-titanium alloy cylinder base is 100-150 DEG C high, and heating time is the 0.5- of One-time forging slab thickness
0.7 times, the unit of heating time is min；
E, after One-time forging slab heating time arrives in step d, One-time forging slab is come out of the stove immediately, by One-time forging slab
It is forged, obtains two fire forging slabs；
F, two fire forging slabs are put into heating furnace and are heated three times, the heating temperature three times of heating furnace is than the β titanium
The phase point temperature of alloy cylinder base is 50-100 DEG C high, and heating time is 0.5-0.7 times of two fire forging slab thicknesses, heating
The unit of time is min；
G, in step f after the heating time is up, two fire forging slabs are come out of the stove immediately, and two fire forging slabs are forged, are obtained
To three fire forging slabs；
H, step f, step g are repeated, until obtaining beta titanium alloy product.
Beta-titanium alloy cylinder base is put into heating furnace first and is heated, the heating temperature of heating furnace is than the beta-titanium alloy
The phase point temperature of cylindrical base is 350-400 DEG C high, and beta-titanium alloy cylinder base is come out of the stove immediately, and beta-titanium alloy cylinder base is carried out
Forging, obtain One-time forging slab, One-time forging slab compared with beta-titanium alloy cylinder base, thickness direction deflection extremely
It is less 60%, as shown in Figure 1, making containing a kind of a large amount of β equiaxed structure of needle-shaped distortion in One-time forging slab, a large amount of
It is obtained in practice and practice, the β equiaxed structure of the needle-shaped distortion it is just slow can to absorb big energy in high-temperature heating process
It decomposes, restrained effectively growing up for initial grain size so that One-time forging slab is in hot conditions (phase point temperature
Above 100-300 DEG C) under, initial grain size still will not occur sharply to grow up, and forge beta titanium alloy product to ensure that
Intensity and plasticity, so that beta titanium alloy product is forged at high temperature, significantly improve the blank deflection of Dan Huoci,
Reduce the process of beta titanium alloy product forging, the forging of general beta titanium alloy product in 3-4 heating process, compare with
For preceding at least 6 times, it is remarkably improved the forging efficiency of beta titanium alloy product.
Embodiment 1
A, a kind of beta-titanium alloy cylinder base (TB5) is put into heating furnace and is heated, the beta-titanium alloy cylinder base
Diameter 990mm, phase point temperature are 745 DEG C, and the heating temperature of heating furnace is 1095 DEG C, heating time 396min；
B, the beta-titanium alloy cylinder base in step a after the heating time is up, come out of the stove immediately by beta-titanium alloy cylinder base, by β titanium
Alloy cylinder base is forged, and One-time forging slab is obtained, and stops phase transformation of the temperature than the beta-titanium alloy cylinder base of forging
Point temperature is 100 DEG C high, and One-time forging slab is 65% in the deflection of thickness direction compared with beta-titanium alloy cylinder base, namely
It is One-time forging slab with a thickness of 346mm；
C, by the cooling cooling by water that passes through of One-time forging slab to room temperature；
D, One-time forging slab after cooling is put into heating furnace and carries out reheating, the reheating temperature of heating furnace
It is 895 DEG C, heating time 173min；
E, after One-time forging slab heating time arrives in step d, One-time forging slab is come out of the stove immediately, by One-time forging slab
Forged, obtain two fire forging slabs, two fire forging slabs with a thickness of 220mm；
F, two fire forging slabs being put into heating furnace and is heated three times, the heating temperature three times of heating furnace is 795 DEG C,
Heating time is 78min；
G, in step f after the heating time is up, two fire forging slabs are come out of the stove immediately, and two fire forging slabs are forged, are obtained
To beta titanium alloy product, the beta titanium alloy product with a thickness of 140mm.
The beta titanium alloy product with a thickness of 140mm is processed into the beta-titanium alloy cylinder base forging that one diameter is 990mm,
It only needs to forge three times, significantly reduces the process of forging, improve forging efficiency.
Embodiment 2
A, a kind of beta-titanium alloy cylinder base (TB22) is put into heating furnace and is heated, the beta-titanium alloy cylinder base
Diameter 1000mm, phase point temperature are 758 DEG C, and the heating temperature of heating furnace is 1158 DEG C, heating time 600min；
B, the beta-titanium alloy cylinder base in step a after the heating time is up, come out of the stove immediately by beta-titanium alloy cylinder base, by β titanium
Alloy cylinder base is forged, and One-time forging slab is obtained, and stops phase transformation of the temperature than the beta-titanium alloy cylinder base of forging
Point temperature is 150 DEG C high, and One-time forging slab is 60% in the deflection of thickness direction compared with beta-titanium alloy cylinder base, namely
It is One-time forging slab with a thickness of 400mm
C, by the cooling cooling by water that passes through of One-time forging slab to room temperature；
D, One-time forging slab after cooling is put into heating furnace and carries out reheating, the reheating temperature of heating furnace
It is 908 DEG C, heating time 280min；
E, after One-time forging slab heating time arrives in step d, One-time forging slab is come out of the stove immediately, by One-time forging slab
Forged, obtain two fire forging slabs, two fire forging slabs with a thickness of 280mm；
F, two fire forging slabs being put into heating furnace and is heated three times, the heating temperature three times of heating furnace is 858 DEG C,
Heating time is 168min；
G, in step f after the heating time is up, two fire forging slabs are come out of the stove immediately, and two fire forging slabs are forged, are obtained
To three fire forging slabs, three fire forging slabs with a thickness of 200mm；
H, three fire forging slabs being put into heating furnace and carries out four heating, the heating temperature three times of heating furnace is 878 DEG C,
Heating time is 120min；
I, in the good h of step after the heating time is up, three fire forging slabs are come out of the stove immediately, and three fire forging slabs are forged,
Obtain beta titanium alloy product, the beta titanium alloy product with a thickness of 120mm.
The beta-titanium alloy cylinder base forging that one diameter is 1000mm is processed into the beta-titanium alloy production with a thickness of 120mm
Product, it is only necessary to forge four times, significantly reduce the process of forging, improve forging efficiency.
Claims (5)
1. a kind of beta titanium alloy product forging method, characterized by the following steps:
A, beta-titanium alloy cylinder base is put into heating furnace and is heated, the heating temperature of heating furnace is than beta-titanium alloy cylinder
The phase point temperature of base is 350-400 DEG C high；
B, the beta-titanium alloy cylinder base in step a after the heating time is up, come out of the stove immediately, by beta-titanium alloy by beta-titanium alloy cylinder base
Cylindrical base is forged, and One-time forging slab is obtained, and stops transformation temperature temperature of the temperature than the beta-titanium alloy cylinder base of forging
Spend 100-150 DEG C high, One-time forging slab is at least 60% compared with beta-titanium alloy cylinder base, in the deflection of thickness direction；
C, One-time forging slab is cooled to room temperature；
D, One-time forging slab after cooling is put into heating furnace and carries out reheating, the reheating temperature of heating furnace is than being somebody's turn to do
The phase point temperature of beta-titanium alloy cylinder base is 100-150 DEG C high；
E, after One-time forging slab heating time arrives in step d, One-time forging slab is come out of the stove immediately, and One-time forging slab is carried out
Forging obtains two fire forging slabs；
F, two fire forging slabs are put into heating furnace and are heated three times, the heating temperature three times of heating furnace is than the beta-titanium alloy
The phase point temperature of cylindrical base is 50-100 DEG C high；
G, in step f after the heating time is up, two fire forging slabs are come out of the stove immediately, and two fire forging slabs are forged, obtain three
Fire forging slab；
H, step f, step g are repeated, until obtaining beta titanium alloy product.
2. a kind of beta titanium alloy product forging method as described in claim 1, it is characterised in that: in step a, heating time
It is 0.4-0.6 times of beta-titanium alloy cylinder base diameter, the unit of heating time is min.
3. a kind of beta titanium alloy product forging method as described in claim 1, it is characterised in that: in step c, a fire is forged
It makes slab and passes through cooling by water to room temperature.
4. a kind of beta titanium alloy product forging method as described in claim 1, it is characterised in that: in step d, heating time
It is 0.5-0.7 times of One-time forging slab thickness, the unit of heating time is min.
5. a kind of beta titanium alloy product forging method as described in Claims 1-4 any one, it is characterised in that: in step f
In, heating time is 0.5-0.7 times of two fire forging slab thicknesses, and the unit of heating time is min.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451490A (en) * | 2014-11-19 | 2015-03-25 | 中南大学 | Method for preparing ultrafine grain titanium alloy by using alpha'' orthorhombic martensite microstructure |
| CN107217221A (en) * | 2017-05-22 | 2017-09-29 | 西部超导材料科技股份有限公司 | A kind of preparation method of high uniform Ti 15Mo titanium alloy bar stocks |
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| CN101603163B (en) * | 2009-07-08 | 2010-10-13 | 西北工业大学 | Control method of local loading and shaping equiaxial alpha content of titanium alloy |
| CN107552697B (en) * | 2017-08-31 | 2019-05-21 | 湖南金天钛业科技有限公司 | TC4 titanium alloy rod bar forging method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451490A (en) * | 2014-11-19 | 2015-03-25 | 中南大学 | Method for preparing ultrafine grain titanium alloy by using alpha'' orthorhombic martensite microstructure |
| CN107217221A (en) * | 2017-05-22 | 2017-09-29 | 西部超导材料科技股份有限公司 | A kind of preparation method of high uniform Ti 15Mo titanium alloy bar stocks |
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Application publication date: 20180119 Assignee: PANGANG GROUP JIANGYOU CHANGCHENG SPECIAL STEEL Co.,Ltd. Assignor: Chengdu advanced metal material industry technology Research Institute Co.,Ltd. Contract record no.: X2024980003064 Denomination of invention: one kind b Forging methods for titanium alloy products Granted publication date: 20191001 License type: Exclusive License Record date: 20240322 |
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