CN107815561B - Titanium alloy preparation method - Google Patents
Titanium alloy preparation method Download PDFInfo
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- CN107815561B CN107815561B CN201710998795.3A CN201710998795A CN107815561B CN 107815561 B CN107815561 B CN 107815561B CN 201710998795 A CN201710998795 A CN 201710998795A CN 107815561 B CN107815561 B CN 107815561B
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- titanium alloy
- gas
- hydroboron
- consutrode
- boron
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of titanium alloy preparation methods, are related to the preparation method technical field of alloy material.It the described method comprises the following steps：Hydroboron is filled with furnace chamber using inert gas as carrier gas.By the cold crucible smelting titanium alloy of consutrode, under high pressure hydrogen part, at consutrode end, borine, which decomposes, generates titanizing boron, and part boron element and hydrogen fuse under high arc temperature in melts of titanium alloy.Part boron element is fallen in bath surface, since these gases decomposition boron content is less, is fused into titanium alloy under high arc temperature, boron element and protium can refine titanium alloy tissue.The method can refine titanium alloy tissue, improve the titanium alloy performance of preparation.
Description
Technical field
The present invention relates to the preparation method technical field of alloy technology more particularly to a kind of titanium alloy preparation methods.
Background technology
Boron is a kind of good titanium alloy fining agent.People largely obtain high-performance using Ti-B alloy systems at present
Titanium alloy, but the amount of boron element will be controlled, and the damage tolerance value of titanium alloy otherwise can be seriously reduced.The hydrogen of titanium alloy is handled
It is a kind of extremely excellent titanium alloy processing method.The processing performance of titanium alloy can also be improved by being handled by hydrogen, such as be increased
Chip performance when the cold working of titanium alloy, moreover it is possible to increase the high temperature deformation ability of titanium alloy, while can also be thin by dehydrogenation
Change the tissue of titanium alloy.Solid titanium alloy and its high temperature dehydrogenation of compound can both refine the solidified structure of titanium alloy,
But hydrogen can also reduce the mechanical property of titanium alloy.
Invention content
The technical problem to be solved by the present invention is to how provide one kind to refine titanium alloy tissue, the titanium of preparation is improved
The titanium alloy preparation method of alloy property.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of titanium alloy preparation method, it is special
Sign is to include the following steps：
1）Titanium alloy material to be processed is put on water cooling pallet, is filled with into furnace body using inert gas inleting pipe lazy
Property gas；
2）ON cycle water supplies water to water jacketed copper crucible, opens consutrode, makes its electric discharge, in the lower end of consutrode
Electric arc is generated, electric arc is contacted with titanium alloy material, starts smelting titanium alloy material；
3）To the solenoid, electromagnetic coil generates vortex in the inside of water jacketed copper crucible, starts melt titanium and closes
Gold material；
4）Be filled with hydroboron gas into furnace body by hydroboron gas inlet pipe, hydroboron gas into
The electric arc that the gas outlet of tracheae is generated close to consutrode, hydroboron gas pours in electric arc at high speeds to be thermally decomposed,
It generates boron gas, hydrogen and titanium boride, boron, hydrogen and fuses into titanium alloy molten drop and following weld pool surface at high temperature；
5）As hydroboron is filled with, while according to the variation of pressure gauge, escape pipe is opened, excessive gas is discharged；
6）With increasing for the molten drop that drips, boron and protium fuse under the action of the electromagnetic agitation of electromagnetic coil in molten bath
Portion；Simultaneously as hydroboron gas decomposes, the hydrogen partial pressure of furnace interior increases, and increases dissolving of the hydrogen in titanium alloy
Degree；
7）After consumable electrode melting, stop the electric discharge of consutrode, stopping is filled with hydroboron gas, closes
Escape pipe；
8）Stop the heating power of water jacketed copper crucible so that the temperature of melts of titanium alloy is continuously decreased and solidified；
9）After titanium alloy solidifies, titanium alloy is subjected to vacuum dehydrogenation processing, the protium in titanium alloy is made to be precipitated.
It is using advantageous effect caused by above-mentioned technical proposal：The method of the invention is by boron hydrogen both elements
Gas is added into titanium alloy smelting in titanium alloy, is played the speciality of two kinds of elements, can be refined titanium alloy group significantly
It knits, removes the protium in titanium alloy and its compound eventually by dehydrogenation, improve the mechanical property of titanium alloy.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of device described in the embodiment of the present invention；
Fig. 2 is the flow chart of method described in the embodiment of the present invention；
Wherein：1, furnace body；2, water jacketed copper crucible；3, water cooling pallet；4, consutrode；5, hydroboron gas inlet
Pipe；51, metal section；52, ceramic pipeline section；6, inert gas inleting pipe；7, escape pipe；8, pressure gauge；9, control valve；10、
Electromagnetic coil；11, crystallization and freezing alloy；12, melt；13, electric arc.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented different from other manner described here using other, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
As shown in Figure 1, the embodiment of the invention discloses a kind of titanium alloy preparation facilities, including furnace body 1, in the furnace body 1
It is provided with water jacketed copper crucible 2, the periphery of the water jacketed copper crucible 2 is provided with electromagnetic induction coil 10, the water jacketed copper crucible 2
Lower opening is provided with water cooling pallet 3, and the water jacketed copper crucible 2 and water cooling pallet 3 collectively form the container of smelting titanium alloy, with
The top of the opposite furnace body 1 of the water cooling pallet 3 is provided with consutrode 4, and a part for the consutrode 4 is located at institute
The outside of furnace body 1 is stated, another part of the consutrode 4 is located in the furnace body 1.In 4 left and right sides of the consutrode
Furnace body 1 on be respectively set there are one hydroboron gas inlet pipe 5, and two hydroboron gas inlet pipes 5
It is obliquely installed, a part for the hydroboron gas inlet pipe 5 is located at outside the furnace body 1, the hydroboron gas
Another part of air inlet pipe 5 is located in the furnace body 1, and the gas outlet for stating hydroboron gas inlet pipe 5 is located at institute
State the downside of consutrode 4, the upside of water jacketed copper crucible；Stove between 2 upside of the lower end of consutrode 4 and water jacketed copper crucible
Inert gas inleting pipe 6 and escape pipe 7 are provided on body 1.
As shown in Figure 1, described device further includes the pressure gauge 8 for being located at the top of furnace body 1 and being connected with the furnace body 1,
The pressure gauge 8 is used to show the pressure information in furnace body 1.
Preferably, the hydroboron gas inlet pipe 5 includes metal section 51 and ceramic pipeline section 52, the metal tube
Section 51 one end be located at outside the furnace body 1, the other end of the metal section 51 is located in the furnace body 1, and the end with it is described
One end of ceramic pipeline section 52 connects, and the other end of the ceramics pipeline section 52 extends to the positive upside of the water jacketed copper crucible 2, consumable
The downside of electrode 4.Hydroboron gas inlet pipe 5 by will be close to water jacketed copper crucible is arranged to ceramic material, can be effective
Prevent electromagnetic coil to hydroboron gas inlet pipe 5 act on, improve the use of the hydroboron gas inlet pipe 5
Service life.
Preferably, the setting opposite with escape pipe 7 of the inert gas inleting pipe 6 is on furnace body, so that in furnace body
Gas mixing evenly, prepare effect it is more preferable.Preferably, the hydroboron air inlet pipe 5 is symmetrically set to the stove
The left and right sides of body 1 improves hydroboron gas in the unit interval by the way that two hydroboron air inlet pipe 5 are arranged
Into the amount of furnace body.Preferably, the inert gas inleting pipe 6 and escape pipe 7 are equipped with control valve 9, the control valve 9
For controlling opening or closing for respective line.
During described device carries out titanium alloy preparation through the invention, the gas of boron hydrogen both elements is closed in titanium
It when golden melting, while being added into titanium alloy, plays the speciality of two kinds of elements, titanium alloy tissue can be refined significantly, it is final logical
The protium in dehydrogenation removal titanium alloy and its compound is crossed, the mechanical property of titanium alloy is improved.
As shown in Fig. 2, the embodiment of the invention also discloses a kind of titanium alloy preparation method, include the following steps：
Hydroboron is filled with furnace chamber using inert gas as carrier gas；
By consutrode and water-cooled copper crucible smelting titanium alloy, under High Pressure Hydrogen atmosphere, in consutrode end borine point
Solution generates titanizing boron, and part boron element and hydrogen fuse under high arc temperature in melts of titanium alloy；
Part boron element is fallen in bath surface, since these gases decomposition boron content is less, is melted under high arc temperature
Enter in titanium alloy, boron element and protium can refine titanium alloy tissue, and titanium alloy group is refined again by vacuum dehydrogenation technology
It knits.
Specifically, described method includes following steps：
1）Titanium alloy material to be processed is put on water cooling pallet 3, is filled into furnace body 1 using inert gas inleting pipe 6
Enter inert gas；
2）ON cycle water supplies water to water jacketed copper crucible 2, opens consutrode 4, makes its electric discharge, under consutrode 4
End generates electric arc, and electric arc is contacted with titanium alloy material, starts smelting titanium alloy material；
3）It powers to the electromagnetic coil 10, electromagnetic coil generates vortex in the inside of water jacketed copper crucible 2, starts melt titanium
Alloy material；
4）Hydroboron gas, hydroboron gas are filled with into furnace body 1 by hydroboron gas inlet pipe 5
The electric arc that the gas outlet of air inlet pipe 5 is generated close to consutrode 4, hydroboron gas, which pours to be heated in electric arc at high speeds, to be divided
Solution generates boron gas, hydrogen and titanium boride, boron, hydrogen and fuses into titanium alloy molten drop and following weld pool surface at high temperature；
5）As hydroboron is filled with, while according to the variation of pressure gauge, escape pipe 7 is opened, excessive gas is discharged；
6）With increasing for the molten drop that drips, boron and protium fuse into molten bath under the action of the electromagnetic agitation of electromagnetic coil 10
It is internal；Simultaneously as hydroboron gas decomposes, the hydrogen partial pressure of furnace interior increases, and it is molten in titanium alloy to increase hydrogen
Xie Du；
7）After 4 melting of consutrode, stop the electric discharge of consutrode 4, stopping is filled with hydroboron gas, closes
Close escape pipe 7；
8）Stop the heating power of water jacketed copper crucible 2 so that the temperature of melts of titanium alloy is reduced and solidified, due to hydrogen and boron
Element leads to constitutional supercooling in melts of titanium alloy solid liquid interface, while the titanium boride that boron is formed plays conjunction as heterogeneous equiax crystal
The effect of gold refinement；
9）After waiting for titanium alloy solidification, then by titanium alloy progress vacuum dehydrogenation processing, the precipitation of protium will be further
Titanium alloy and its tissue of compound are refined, the mechanical property of titanium alloy is improved.
The method carries out melting using consutrode in hydroboron atmosphere, to refine the tissue and power of titanium alloy
Learn performance.Melting atmosphere is the mixed gas of inert gas and hydroboron.The hydroboron gas can be second boron
The gases such as alkane, tetraborane, or reacted at high temperature into furnace body for the hydroboron liquid of more macromolecular chain.The party
Method is not only applicable to titanium alloy, is also applied for the refinement of the intermetallic compound of titanium matrix composite and titanium.
Claims (1)
1. a kind of titanium alloy preparation method, it is characterised in that include the following steps：
1）Titanium alloy material to be processed is put into water cooling pallet（3）On, use inert gas inleting pipe（6）To furnace body（1）It is interior
It is filled with inert gas；
2）ON cycle water gives water jacketed copper crucible（2）It supplies water, opens consutrode（4）, make its electric discharge, in consutrode（4）'s
Lower end generates electric arc, and electric arc is contacted with titanium alloy material, starts smelting titanium alloy material；
3）To electromagnetic coil（10）Power supply, electromagnetic coil is in water jacketed copper crucible（2）Inside generate vortex, start melting titanium alloy
Material；
4）Pass through hydroboron gas inlet pipe（5）To furnace body（1）Inside it is filled with hydroboron gas, hydroboron gas
Air inlet pipe（5）Gas outlet close to consutrode（4）The electric arc of generation, hydroboron gas pour at high speeds in electric arc by
Thermal decomposition generates boron gas, hydrogen and titanium boride, boron, hydrogen and fuses into titanium alloy molten drop and following molten bath table at high temperature
Face；
5）As hydroboron is filled with, while according to the variation of pressure gauge, opening escape pipe（7）, excessive gas is discharged；
6）With increasing for the molten drop that drips, boron and protium are in electromagnetic coil（10）Electromagnetic agitation under the action of fuse into molten bath
Portion；Simultaneously as hydroboron gas decomposes, the hydrogen partial pressure of furnace interior increases, and increases dissolving of the hydrogen in titanium alloy
Degree；
7）Work as consutrode（4）After melting, stop consutrode（4）Electric discharge, stopping be filled with hydroboron gas, close
Close escape pipe（7）；
8）Stop water jacketed copper crucible（2）Heating power so that the temperature of melts of titanium alloy is continuously decreased and is solidified；
9）After titanium alloy solidifies, titanium alloy is subjected to vacuum dehydrogenation processing, the protium in titanium alloy is made to be precipitated.
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| CN108660301A (en) * | 2018-06-28 | 2018-10-16 | 浙江俊荣五金工业有限公司 | A kind of screw intelligence dehydrogenation device |
| CN111334674B (en) * | 2020-03-13 | 2021-12-10 | 西安圣泉钛制品有限公司 | Device for preparing titanium rod, titanium alloy and titanium alloy device |
| CN113199026B (en) * | 2021-03-31 | 2022-03-29 | 北京科技大学 | Titanium boride reinforced titanium-based composite material and preparation method thereof |
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| JPWO2005098071A1 (en) * | 2004-04-08 | 2008-02-28 | 株式会社 東北テクノアーチ | Method for refining alloy crystal grains by hydrogen treatment |
| EA015885B1 (en) * | 2005-01-27 | 2011-12-30 | Перук (Проприетари) Лимитед | A method of producing titanium |
| CN101648699A (en) * | 2009-07-09 | 2010-02-17 | 刘学晖 | Titanium hydride compound foaming powder and quantitative chemical combination process |
| CN105296777B (en) * | 2015-10-30 | 2018-02-13 | 西安理工大学 | A kind of preparation method of low rich titanium phase tungsten-titanium alloy |
| CN106298257B (en) * | 2016-08-24 | 2018-07-24 | 深圳市贝特瑞新能源材料股份有限公司 | A kind of high-performance titanium-containing oxide, preparation method and the usage |
| CN106637152A (en) * | 2016-09-21 | 2017-05-10 | 芜湖扬展新材料科技服务有限公司 | Preparation method of titanium alloy |
| CN106637015B (en) * | 2016-12-08 | 2018-06-12 | 沈阳铸造研究所 | A kind of heat treatment process for refining Ti-5Al-2.5Sn ELI alloy casting structures |
| CN107059067A (en) * | 2017-06-05 | 2017-08-18 | 攀钢集团研究院有限公司 | A kind of method for preparing ultra-fine Titanium Powder |
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Effective date of registration: 20180823 Address after: 110101 No. 90, GUI Xiang street, Sujiatun District, Shenyang, Liaoning. Applicant after: Shenyang Xin Tong Science and Technology Ltd. s Address before: 050000 1-2-601, Xinhua District, Shijiazhuang, Hebei 697 Applicant before: Wang Shujie |
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Address after: 110000 No. 90, Guixiang street, Sujiatun District, Shenyang City, Liaoning Province Patentee after: Shenyang AVIC Nonferrous Materials Co.,Ltd. Address before: 110101 No. 90, GUI Xiang street, Sujiatun District, Shenyang, Liaoning. Patentee before: Shenyang Xin Tong Science and Technology Ltd. s |