CN108384966A - A method of utilizing electron-beam cold bed furnace melting TA10 titanium alloys - Google Patents
A method of utilizing electron-beam cold bed furnace melting TA10 titanium alloys Download PDFInfo
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- C22B9/228—Remelting metals with heating by wave energy or particle radiation by particle radiation, e.g. electron beams
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Abstract
This application discloses a kind of methods using electron-beam cold bed furnace melting TA10 titanium alloys, belong to titanium alloy field.This method includes the following steps：1) it will be mixed containing the material of titanium, nickel and molybdenum and be pressed into material block, dried later；2) utilize electron-beam cold bed furnace melting to get TA10 titanium alloys the material block after drying；Institute's electron-beam cold bed furnace melting includes opening the rifle stage, the ingot casting bottom stage, stablizing smelt stage；The electron-beam cold bed furnace includes the fusion zone adjoined successively, fining cell and crystal region, and the power of the fusion zone in the stable smelt stage is 800~1100Kw, and the power of fining cell is 150~180Kw, and the power of crystal region is 180~210Kw.The Elemental redistribution of TA10 titanium alloys prepared by this method has good uniformity, and surface quality is good.
Description
Technical field
This application involves a kind of methods using electron-beam cold bed furnace melting TA10 titanium alloys, belong to titanium alloy field.
Background technology
As dosage increases rapidly titanium alloy in aircraft industry, the metallurgical quality of alloy becomes more and more important.According to
Various countries count, and many aircraft accidents are caused by leading to premature failure due to the metallurgical imperfection of titanium alloy member.It is excellent in order to produce
Matter high-cleanness aero-engine rotating member titanium alloy introduces cold hearth melting technology in the world in late 1980s, by
It is mingled with (abbreviation LDI) in its excellent low-density and high density is mingled with (abbreviation HDI) removal effect, in aviation critical component titanium
There is unique advantage in the production of alloy cast ingot.Electron-beam cold bed furnace melting (abbreviation EB) technology is high except elimination that can be relatively good
Density and low-density are mingled with outer, moreover it is possible to largely recycle defective material, reduce production cost, can produce slab ingot, empty ingot, reduce plank and pipe
Following process when material produces, can be with melting once ingot to certain purposes.
TA10 titanium alloys are a kind of low alloying Ti-Mo-Ni systems developed to improve the crevice corrosion behavior of pure titanium
Nearly α alloys contain 0.3%Mo and 0.8%Ni (mass fraction) in the alloy, not only enhance alloy, but also to high temperature, low pH
Being worth chloride or week reduction acid has good anti-crevice corrosion behavior.TA10 titanium alloys have good process plastic and weldering
Performance is connect, extensive use is had been obtained in fields such as chemical industry, medical treatment, aviations.
Domestic EB melting techniques are still in the starting stage, are not yet formed in terms of titanium or titanium alloy forming and are answered on a large scale
With.Baoju Titanium Industry Co., Ltd. and Yunnan Titanium Co., Ltd. are directed to the electron-beam cold bed furnace of TA10 titanium alloys respectively
The once-forming technique of melting is studied, research shows that：In the process using electron-beam cold bed furnace melting TA10 titanium alloys
The middle TA10 alloys distributing homogeneity difference that there is a problem of the excessively volatilization of Ni elements and prepare.
Invention content
According to the one side of the application, a kind of method using electron-beam cold bed furnace melting TA10 titanium alloys is provided,
TA10 titanium alloy Elemental redistributions prepared by this method have good uniformity, and surface quality is good.
The method using electron-beam cold bed furnace melting TA10 titanium alloys, which is characterized in that include the following steps：
1) it will be mixed containing the material of titanium, nickel and molybdenum and be pressed into material block, dried later；
2) utilize electron-beam cold bed furnace melting to get TA10 titanium alloys the material block after drying；
The electron-beam cold bed furnace smelting technology includes opening rifle stage, ingot casting bottom stage and stable smelt stage；
Nickel content is 0.85~1.05wt% in the material block for opening rifle stage and ingot casting bottom stage, for stablizing
Nickel content is 0.80~0.90wt% in the material block of smelt stage；
The electron-beam cold bed furnace includes the fusion zone adjoined successively, fining cell and crystal region, the stable smelt stage
In the power of fusion zone be 800~1100Kw, the power of fining cell is 150~180Kw, the power of crystal region is 180~
210Kw。
Preferably, described for opening the lower limit of nickel content in the material block in rifle stage and ingot casting bottom stage selected from being
0.87wt%, 0.89wt%, 0.90wt%, 0.92wt% or 0.94wt%, the upper limit be selected from 0.95wt%, 0.97wt%,
0.99wt%, 1.00wt%, 1.02wt% or 1.04wt%；
It is described for stablize smelt stage material block in nickel content lower limit be selected from 0.80wt%, 0.82wt%,
0.83wt% or 0.84wt%, the upper limit are selected from 0.85wt%, 0.86wt%, 0.87wt%, 0.88wt% or 0.89wt%.
It is further preferred that nickel content is 0.95wt% in the material block for opening rifle stage and ingot casting bottom stage,
Nickel content is 0.85wt% in the material block for stablizing smelt stage.
Preferably, the content of the molybdenum element in the material containing titanium, nickel and molybdenum is 0.25~0.35wt%.Further
Preferably, the molybdenum element content in the material of the electron-beam cold bed furnace smelting technology is 0.3wt%.
Preferably, the thickness of the material block is 100-200mm.It is further preferred that the lower limit choosing of the thickness of the material block
From 110mm, 120mm, 130mm, 140mm, 150mm or 160mm, the upper limit be selected from 150mm, 160mm, 170mm, 180mm or
190mm.It is further preferred that the thickness of the material block is 170mm.
Preferably, the material block single layer is fed to the smelting zone, and the charging rate is 8~20mm/min.Further
Preferably, the lower limit of the charging rate be selected from 9mm/min, 10mm/min, 11mm/min, 12mm/min, 13mm/min,
14mm/min, 15mm/min, 16mm/min or 17mm/min, the upper limit are selected from 12mm/min, 13mm/min, 14mm/min, 15mm/
Min, 16mm/min, 17mm/min, 18mm/min or 19mm/min.It is further preferred that the charging rate is 14mm/
min。
Optionally, the electron-beam cold bed furnace smelting zone that is fed to can unilateral charging and/or bilateral charging.According to one kind
Embodiment, when feed system is that bilateral is fed, the charging rate per side is 4~10mm/min.
Optionally, length × width x thickness of the specification of the material block is：200mm × 200mm × 170mm, according to one kind
The quality of embodiment, the material block is 20Kg.
It, can be by material pressure according to the size of the feeding warehouse of electron-beam cold bed furnace and the quantity for the material for waiting for melting
The identical or different material block of several pieces of thickness is made.Preferably, the thickness of several block blocks is identical.It is alternatively possible to adopt
Briquetting operations are carried out with hydraulic press.
Preferably, the drawing ingot speed degree of the electron-beam cold bed furnace smelting technology is 1~6mm/min.
It is highly preferred that the drawing ingot speed degree of the electron-beam cold bed furnace smelting technology is 3mm/min.
Preferably, four first guns are arranged in the fusion zone, second electron gun is arranged in the fining cell, described
Two third electron guns are arranged in crystal region；
The current range of first gun in the stable smelt stage is 7.0~9.0A, the electric current of the second electron gun
Ranging from 5.0~6.2A, the current range of third electron gun are 6.0~7.0A, the value of vacuum degree in the electron-beam cold bed furnace
Less than 7.8 × 10-3torr.The current range of third electron gun is the mobility that 6.0~7.0A is more advantageous to Ni elements, increases nickel
The uniformity of Elemental redistribution.
It is highly preferred that the current range of the first gun in the stable smelt stage is 7.8~8.5A, the second electronics
The current range of rifle is 5.8-6.2A, and the current range of third electron gun is 6.3~6.7A, electronics in the stable smelt stage
The value of vacuum degree is less than 6.8 × 10 in beam cold hearth-3torr。
It is further preferred that vacuum degree is 0.25~0.80Pa in electron-beam cold bed furnace in the stable smelt stage.More
It is further preferred that vacuum degree is 6.0 × 10 in electron-beam cold bed furnace in the stable smelt stage-3Pa。
Optionally, the current range for opening first gun in the rifle stage is 2.0~5.0A, the electric current of the second electron gun
Ranging from be not more than 5.0A, the current range of third electron gun is 0~2.0A, it is described open it is true in electron-beam cold bed furnace in the rifle stage
The value of reciprocal of duty cycle is less than 1.2 × 10-2torr。
It is preferably, described that open in the rifle stage vacuum degree in electron-beam cold bed furnace be 1.0 × 10-2torr。
Preferably, described to open the retention time in rifle stage as no more than 2h.
Optionally, the current range of the first gun in the stage of the ingot casting bottom is 5.0~7.0A, the second electron gun
Current range be 5.0~6.0A, the current range of third electron gun is the electricity in the stage of the ingot casting bottom no more than 6.5A
The value of vacuum degree is less than 9.1 × 10 in beamlet cold hearth-3torr。
Preferably, vacuum degree is 7.5 × 10 in the electron-beam cold bed furnace in the stage of the ingot casting bottom-3torr。
Preferably, the retention time in ingot casting bottom stage is no more than 50min.
Preferably, the electron beam cold hearth melting further includes feeding technology.
Preferably, the feeding technology includes finely tuning the X-axis of third electron gun, Y-axis at regular intervals to shrink figure
Until terminating.
It is further preferred that the feeding technology include by third electron gun since 6.5A with the speed of 1.3A/8min
It reduces, X-axis, the Y-axis of third electron gun are finely tuned every 8min shrinks figure until terminating.
According to one embodiment of the application, the feeding technology be included in after stable melting by third electron gun from
6.5A starts uniformly to reduce with the interval of 1.3A/8min, often drops 1.3A and figure is shunk in third electron gun figure X-axis, Y-axis fine tuning
Until terminating, the time of feeding technology is 30-50min, and further, the time of feeding technology is 40min.
Preferably, the ingot casting natural cooling that will be prepared after the feeding technology of electron beam cold hearth melting.
Preferably, dry tired condition described in step 1) is：Temperature is 100~200 DEG C, and the time is 1~4h.
It is highly preferred that drying condition described in step 1) is：Temperature is 120 DEG C, time 2h.
Optionally, the material includes the mixture and/or Ti-Mo-Ni alloy of titanium sponge and Mo-Ni alloy.Using titanium molybdenum
Nickel alloy is raw material, is first self-consuming furnace to be used to prepare Ti-Mo-Ni alloy cast ingots, then makes alloy and consider sample to be worth doing, finally carry out alloy
Founding TA10 titanium alloys are matched, Ti-Mo-Ni alloys are conducive to uniformly dividing for Mo, Ni element closer to the fusing point of matrix titanium elements
The uniformity of cloth, the TA10 titanium alloys of casting is more preferable.
Preferably, the model BMO-01 of the electron-beam cold bed furnace.
According to further aspect of the application, a kind of TA10 titanium alloys are provided, the TA10 titanium alloys are by above-mentioned side
It is prepared by method.
In the application, electron-beam cold bed furnace abbreviation EB.
Low-density is mingled with abbreviation LDI.
High density is mingled with abbreviation HDI.
Start from electron gun and is defined as opening the rifle stage up to titanium liquid flows into crystallizer for the first time.
Flowing into crystallizer for the first time from titanium liquid, drop-down is defined as the ingot casting bottom stage for the first time to ingot casting.
Material melting is pulled down to for the first time from ingot casting to finish to stablize smelt stage.
The advantageous effect that the application can generate includes：
1) method of electron-beam cold bed furnace melting TA10 titanium alloys provided herein, solves TA10 titan alloy casting ingots
In fusion process in nickel element excessively volatilization and TA10 titanium alloys the problem of Elemental redistribution lack of homogeneity, made obtained TA10 titaniums
Alloy mass is qualified, ingredient is uniform, surface quality is good.
2) method of melting TA10 titanium alloys provided herein, have speed of melting is fast, TA10 titan alloy casting ingots at
The high advantageous effect of material rate.
3) TA10 titanium alloys provided herein have the beneficial effect up-to-standard, ingredient is uniform, surface quality is good
Fruit.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the schematic diagram for the electronic cold beam pool furnace that the embodiment of the present application uses.
Fig. 2 a are the electron gun partial schematic diagram for the electronic cold beam pool furnace that the embodiment of the present application uses；Fig. 2 b are electron gun
Irradiation position schematic diagram.
Specific implementation mode
Unless otherwise instructed, the raw material in embodiments herein is bought by commercial sources, and wherein titanium sponge is purchased from
Southern exposure Jin Da companies, model JD1704-233-4, Ni-Mo alloy are purchased from company of Chengde Tianda Vanadium Industry Co., Ltd., type
Number be JNM20170601.
The electron-beam cold bed furnace used in embodiments herein is the BMO-01 models of Qinghai cumulative Tai Ye joint-stock companies
Electron-beam cold bed furnace.
Analysis method is as follows in embodiments herein：
Oxygen, nitrogen, protium content analysis are carried out using ONH2000 oxygen nitrogen hydrogen analyzers.
Carbon element content analysis is carried out using HCS140 infrared C-S analyzers.
Nickel, molybdenum element content are carried out using the ICP-7300V Inductively coupled plasma optical emission spectrometers of U.S. PE companies
Analysis.
The application is described in detail with reference to embodiment and attached drawing, but the application is not limited to these embodiment and attached drawing.
The embodiment of the present application use electron-beam cold bed furnace schematic diagram as shown in Figure 1, material block 4 be placed in feeder 3,
On feeder 3 charging ram fortune feedblock 4 enter fusion zone, electron gun 6 irradiate material 4 melt, monitor 7 to fusion process into
Row monitoring, titanium liquid flow into cold bed 2 from melt zone, and baffle 5 is arranged between melt zone and cold bed to control the titanium liquid for flowing into cold bed 2
Liquid level, titanium liquid flows into crystallizer 1 from cold bed 2 and crystallized under the irradiation of electron gun 6, flows into ingot casting 9, titanium later
Liquid carries out ingot casting under the irradiation of electron gun 6, and mould liquid level is monitored by mould liquid level monitor 8.
Fig. 2 a are the electron gun partial schematic diagram for the electron-beam cold bed furnace that the embodiment of the present application uses, and Fig. 2 b are electron gun
Irradiation position schematic diagram.The electron-beam cold bed furnace used in the embodiment of the present application include the fusion zone adjoined successively, fining cell and
Crystal region, the fusion zone are arranged the position 10 that four first guns irradiate, four first guns are denoted as 1~4# respectively
Electron gun；The position 11 that second electron gun irradiates is arranged in the fining cell 14, and the second electron gun is denoted as 5# electron guns；It is described
The position 12 that two third electron guns irradiate is arranged in crystal region, and two third electron guns are denoted as 6# and 7# electron guns, are putting respectively
Three hoppers are placed per side in the position for setting material block.
In following embodiments, the voltage of electron gun is 30V, and the electron gun division of labor is as follows：
1) raw material is heated, so that it is molten into liquid metal and flows into cold bed (1~4# electron guns)；
2) heating cold bed front end liquid metal, removes the accretion in cast gate, and melt is made to flow into crystallizer (deep 5# electron guns)；
3) liquid metal in heating crystalline device ensures liquid level temperature equalization, avoids the occurrence of cold lattice (6~7# electron guns).
The compacting of 1 material block 1#~5# of embodiment, comparison sample block D1#-D2#
The raw material blocks of identical exact mass are made after being mixed containing the raw material of titanium, nickel and molybdenum, by raw material blocks pressure
The material block of specific dimensions specification is made, dries.Expect that composition and the preparation condition of the material of block 1#~5# are as shown in table 1.
Table 1
Illustrate the preparation method for expecting block to expect block 1# as Typical Representative, preparation process is as follows：
A., the material that titanium sponge (0 grade), Ni-Mo intermediate alloy weight are amounted to 640Kg, is all compressed to original after batch mixing
Material block, weight are 20Kg/ blocks (wherein titanium sponge 19.77kg, intermediate alloy 0.23kg), amount to 32 pieces；
B. compacting alloy material block specifications size is：200mm×200mm×170mm；
C. each electronic scale must be calibrated before, and test mass block is used in combination to detect measurement accuracy, and alloy packet is weighed after pack,
It need to carry out multiple title；After expecting block compacting, using 100Kg electronic scales, material block weight is inspected by random samples according to 100% ratio, and keep a record,
Material block total weight is weighed using electronic crane scale, and is kept a record；
D. compacting titanium stone roller is put into baking oven and is toasted, temperature sets 120 DEG C, runs 2 hours.
The feed process of 2 material block 1#~5# of embodiment, comparison sample block D1#~D2#
Material block 1#~5# of preparation, comparison sample block D1#~2# are piled up respectively into electron beam cold hearth melting as shown in table 2
The melting that TA10 titanium alloys are carried out on the feeder 3 of stove, to expect that block 1# illustrates that the stacking rule for expecting block, stacking are wanted as Typical Representative
Ask for：
A. general requirement is piled up
Pile up rule in left side：4 pieces are often arranged, is spread in a single layer, adds up to and piles up 16 pieces of alloy material blocks, amounts to 4 rows；
Pile up rule in right side：4 pieces are often arranged, is spread in a single layer, adds up to and piles up 16 pieces of alloy material blocks, amounts to 4 rows.
B. it is as shown in table 2 specifically to pile up position signal：(rifle and the charging material block in ingot casting bottom stage are opened in A representatives, and B is represented
Stablize the charging material block of smelt stage)
Table 2
The preparation of embodiment 3 ingot casting 1#~5#, comparative sample ingot casting D1#~D2#
Material block 1#~5#, comparison sample block D1#~2# prepared by embodiment 1 are placed on according to the stacking rule of embodiment 2
After feeder, ingot casting is prepared by subordinate's step melting in electron-beam cold bed furnace, is respectively labeled as ingot casting 1#~5#, comparative sample
Ingot casting D1#~D2#, the electron-beam cold bed furnace smelting technology include following stages：
(1) start the electron gun stage
Open the rifle stage：Heating condenses shell and does not make its fusing, observes vacuum situation of change in stove.It should strictly be controlled during baker
It makes 1~5# rifle current ranges and is not more than 5.0A；The current range that 6~7# rifles should be started simultaneously carries out preheating bottom no more than 2.0A
Support.Confirm that all electron gun states are without exception and after vacuum is relatively stable in stove, further increase electric current fusing condensation shell, in stove
Vacuum degree is 1.0 × 10-2torr。
(2) the ingot casting bottom stage
Make the backing stage：Condensation shell surface layer starts to feed after being completely melt, 1~4# electron guns keep Synchronous lifting as possible
And electric current is unsuitable excessively high, 1~4# electron gun currents are set as 6.0A, and 5# electron gun currents are set as 5.5A；Left and right charging rate
It is consistent as far as possible；It is steady during bottom processed to promote 6#, 7# rifle electric current, setting electric current 6.3A；It is not cooled down after the completion of bottom processed,
Ingot casting drop-down is directly entered smelt stage, and vacuum degree is 7.5 × 10 in stove-3torr。
(3) stablize smelt stage
Stablize smelt stage, 1~4# electron gun currents are set as 8.0A, and left and right sides charging rate is kept to keep one as possible
It causes；Fining cell 5# electron gun currents are set as 5.5A, ensure the smooth removal of impurity element；It is finely tuned into after stablizing melting operating mode
(reduction) 6#, 7# electron gun current, is set as 6.5A, and control 6#, 7# rifle scans track, it is made not weigh center portion position in a crystallizer
It is folded.Stablize reasonable distribution electron gun scanning patter during melting, ensure cold area free in cold bed and crystallizer, vacuum degree is in stove
6.0×10-3torr。
(4) the feeding stage
The control of 6#, 7# electron gun current is at 6.5A or so, 6#, 7# electron gun current and scanning range interval after melting
Equal time uniformly reduces, and every identical time interval, fine tuning 6#, 7# rifle are steadily slowly reduced from edge to center, until
Molten bath disappears.
(5) go out ingot
Ingot casting, which leads to after argon cools down 3 hours, deflates, and goes out ingot safely.
Illustrate that the technical process of melting ingot casting, the preparation process of ingot casting 1# are using ingot casting 1# as Typical Representative：
(1) 2017 on August 22,15:Power cabinet starts when 15, then gradually promotes 1~5# electron gun currents.
(2)15:Start 6#, 7# electron gun when 20.
(3)16:Aluminium alloy flows into crystallizer for the first time when 35.
(4)17:Ingot is drawn when 05 for the first time.
(5)18:40 left side charging rams stop pusher.
(6)18:45 right side charging rams stop pusher.
(7)18:Material melting finishes when 50, closes 1~5# electron guns immediately, and start feeding.
(8)19:Feeding terminates when 30, and 6~7# electron gun currents are 5A when feeding, 1A is reduced within every 8 minutes, after having dropped electric current
6, figure is shunk in 7# figures X-axis, Y-axis fine tuning, until terminating.
(9) it machines
1. hair ingot weight is 618.5kg, size is 420 × 1320 × 250mm；Wherein, shell weight of just establishing is 195kg,
Updated shell weight of building is 205kg, and the weight alloy of entire smelt stage, volatilization splash loss is 11.5kg, splash of volatilizing
Loss late is 1.8%.
2. according to requiring to complete ingot casting milling and Cutting indexes, sawing amount in head is 30mm, and sawing amount in tail portion is 80mm.
Experiment finished ingot weight is 450kg (weighing after sampling, plane milling), and size is 310 × 1310 × 245mm.
The stability of 4 ingot casting 1#-5# of embodiment, comparative sample ingot casting D1#~D2# smelting technologies
The technology stability of the fusion process of ingot casting 1#-5#, comparative sample ingot casting D1#~D2# is tested, and smelting period is analyzed
Between charging rate with draw ingot speed stability, the stability of smelting technology is illustrated with the smelting technology of ingot casting 1#.The casting of embodiment 3
The ingot casting bottom stage and charging during stablizing melting and drawing ingot speed change parameter in the preparation process of ingot 1# is as shown in table 4.
Technological parameter during 4 melting of table
According to above-mentioned parameter, it is known that：
(1) during entire normal smelting, the adjustment of left and right sides charging rate keeps synchronous substantially, basic control 4~
Between 10mm/min, average feed rate 7mm/min.
(2) it draws ingot velocity perturbation larger, shows stage and first increase the trend dropped afterwards, it is 3mm/min averagely to draw ingot speed degree.
The chemical composition analysis of 5 ingot casting 1#-5# of embodiment, comparative sample ingot casting D1#~D2#
The sampling method of the chemical composition analysis of ingot casting is：On six faces of the ingot casting of ingot casting processing workshop after machining
And sample point is respectively provided on ingot casting section, the setting of sample point can accurately reflect the distribution situation of the chemical composition of ingot casting.
O, N content are detected with ONH2000 oxygen nitrogen hydrogen analyzers, and by 20% sampling observation hydrogen content of sampling amount.Use HCS140
Infrared C-S analyzer inspects phosphorus content by random samples by the 20% of sampling amount.The mark for taking bits sample is carried out on the two big face of ingot casting and top surface.Make
Milling bits sample is bored on sample point with slotting cutter.Use the ICP-7300V Inductively coupled plasma optical emission spectrometers of PE companies of the U.S.
Analyze the chemical composition of nickel, molybdenum.
Respectively to the chemical composition analysis of ingot casting 1#~5#, comparative sample ingot casting D1#~D2#, in any surface of ingot casting
At head 210mm at head 140mm from the head 70mm away from ingot casting, away from ingot casting, away from ingot casting, the head away from ingot casting
It is sampled at 280mm.With the Typical Representative that ingot casting 1# is ingot casting prepared by the application, the specific testing result of chemical composition such as table 5
Shown, the specific testing result of chemical composition of comparative sample ingot casting D1# is as shown in table 6, and the chemical composition of comparative sample ingot casting D2# is specific
Testing result is as shown in table 7.
5 ingot casting 1# chemical compositions of table
As shown in Table 5, in ingot casting 1#, Mo constituent content average values are 0.30%, standard deviation 0.019；Ni elements contain
It is 0.76% to measure average value, standard deviation 0.034；All elements meet national standard, and have good uniformity.Each element distribution is whole
Body is more uniform, and ingot chemistry is relatively stable, and meets national standard.Sample point 6,7,8 is located at ingot casting and formulates the stage,
Ni element average contents are 0.75%, and raw material dispensing value is 0.95%, volatilization loss 21%.Sample point 1~5 is located at normal
Smelt stage, Ni element average contents are 0.77%, and raw material dispensing value is 0.85%, volatilization loss 9%.Therefore ingot casting bottom
In the stage, Ni element evaporation loss lates are about 21%, and in the normal smelting stage, Ni element evaporation loss lates are about 9%.
6 comparative sample ingot casting D1# chemical compositions of table
7 comparative sample ingot casting D2# compositions of table
Tables of the comparative sample ingot casting D1# and comparative sample ingot casting D2# than the ingot casting of the preparation of the application is can be seen that from table 6 and 7
Surface element distributing homogeneity is poor, especially the difference lack of homogeneity of nickel element.
The Ni element loss test of 6 ingot casting 1#-5# of embodiment, comparative sample ingot casting D3#
Ni element loss rates in the preparation process of ingot casting 1#-5# are tested, in the ingot casting bottom stage, Ni elements are waved
It is about 21% to send out loss late, and in the normal smelting stage, Ni element evaporation loss lates are about 9%.
Comparative sample ingot casting D3# is different from the preparation method of ingot casting 1#, difference：1~4# electronics in ingot casting bottom stage
The electric current of rifle is 4.5A, and the electric current of 5# electron guns is set as 6.5A, and 6#, 7# electron gun are set as 5.5A；Stablizing melting rank
The electric current of 1~4# electron guns of section is set as 6.5A, and the electric current of 5# electron guns is set as 6.7A, and the current range of 6#, 7# rifle is set as
5.5A。
The chemical composition of ingot casting D3# is detected.As shown in table 8：
8 comparative sample ingot casting D3# compositions of table
Ni element loss rates in the preparation process of ingot casting D3# are tested, ingot castings of the ingot casting D3# in preparation process
In the bottom stage processed, Ni element evaporation loss lates are about 35%, and in the normal smelting stage, Ni element evaporation loss lates are about 22%.
The above is only several embodiments of the application, not does any type of limitation to the application, although this Shen
Please disclosed as above with preferred embodiment, however not to limit the application, any person skilled in the art is not taking off
In the range of technical scheme, makes a little variation using the technology contents of the disclosure above or modification is equal to
Case study on implementation is imitated, is belonged in technical proposal scope.
Claims (10)
1. a kind of method using electron-beam cold bed furnace melting TA10 titanium alloys, which is characterized in that include the following steps：
1) it will be mixed containing the material of titanium, nickel and molybdenum and be pressed into material block, dried later；
2) utilize electron-beam cold bed furnace melting to get TA10 titanium alloys the material block after drying；
The electron-beam cold bed furnace smelting technology includes opening rifle stage, ingot casting bottom stage and stable smelt stage；
Nickel content is 0.85~1.05wt% in the material block for opening rifle stage and ingot casting bottom stage, for stablizing melting
Nickel content is 0.80~0.90wt% in the material block in stage；
The electron-beam cold bed furnace includes the fusion zone adjoined successively, fining cell and crystal region, in the stable smelt stage
The power of fusion zone is 800~1100Kw, and the power of fining cell is 150~180Kw, and the power of crystal region is 180~210Kw.
2. according to the method described in claim 1, it is characterized in that, the material block for opening rifle stage and ingot casting bottom stage
Middle nickel content is 0.95wt%,
Nickel content is 0.85wt% in the material block for stablizing smelt stage.
3. method according to claim 1 or 2, which is characterized in that the molybdenum element in the material containing titanium, nickel and molybdenum
Content be 0.25~0.35wt%, preferably 0.30wt%.
4. according to the method described in claim 1, it is characterized in that, the thickness of the material block is 100~200mm, single layer is into object
Expect that the smelting zone, the speed into material are 8~20mm/min；
Preferably, the thickness of the material block is 170mm, and single layer is fed to the smelting zone, and the speed of the charging is 14mm/
min；
Preferably, the drawing ingot speed degree of the electron-beam cold bed furnace smelting technology is 1~6mm/min, it is highly preferred that the electron beam
The drawing ingot speed degree of cold hearth smelting technology is 3mm/min.
5. according to the method described in claim 1, it is characterized in that, four first guns, the essence is arranged in the fusion zone
It refines area and two one the second electron gun, crystal region setting third electron guns is set；
The current range of first gun in the stable smelt stage is 7.0~9.0A, the current range of the second electron gun
For 5.0~6.2A, the current range of third electron gun is 6.0~7.0A, and the value of vacuum degree is less than in the electron-beam cold bed furnace
7.8×10-3torr；
Preferably, the current range of the first gun in the stable smelt stage is 7.8~8.5A, the electricity of the second electron gun
Flow ranging from 5.8-6.2A, the current range of third electron gun is 6.3~6.7A, electron beam cold hearth in the stable smelt stage
The value of vacuum degree is less than 6.8 × 10 in stove-3torr。
6. according to the method described in claim 5, it is characterized in that, the current range for opening first gun in the rifle stage is
The current range of 2.0~5.0A, the second electron gun are no more than 5.0A, and the current range of third electron gun is 0~2.0A,
The value for opening vacuum degree in electron-beam cold bed furnace in the rifle stage is less than 1.2 × 10-2torr。
7. according to the method described in claim 5, it is characterized in that, the electric current of the first gun in the stage of the ingot casting bottom
Ranging from 5.0~7.0A, the current range of the second electron gun are 5.0~6.0A, the current range of third electron gun be no more than
6.5A, the value of vacuum degree is less than 9.1 × 10 in the electron-beam cold bed furnace in the stage of the ingot casting bottom-3torr。
8. according to the method described in claim 1, it is characterized in that, the electron beam cold hearth melting further includes feeding technology；
Preferably, the feeding technology include the X-axis of third electron gun, Y-axis are finely tuned at regular intervals shrink figure until
Terminate；
It is highly preferred that the feeding technology includes reducing third electron gun with the speed of 1.3A/8min since 6.5A, third
X-axis, the Y-axis of electron gun are finely tuned every 8min shrinks figure until terminating.
9. method according to any one of claim 1 to 8, which is characterized in that the model of the electron-beam cold bed furnace
BMO-01。
10. a kind of TA10 titanium alloys, which is characterized in that it is prepared by the method described in any one of claim 1-9.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722565A (en) * | 2019-01-10 | 2019-05-07 | 青海聚能钛金属材料技术研究有限公司 | High temperature resistant titanium alloy and its preparation method and application |
| CN109722564A (en) * | 2019-01-10 | 2019-05-07 | 青海聚能钛金属材料技术研究有限公司 | Ti-6242 titanium alloy and preparation method thereof |
| CN111254318A (en) * | 2020-03-12 | 2020-06-09 | 西安华创新材料有限公司 | Fine smelting and purifying method for large-size nickel-titanium shape memory alloy cast ingot |
| CN111286637A (en) * | 2020-02-24 | 2020-06-16 | 青海聚能钛业股份有限公司 | Electron beam cold bed smelting method of TA15 titanium alloy |
| CN112680614A (en) * | 2020-11-23 | 2021-04-20 | 昆明理工大学 | Cold cathode EB furnace smelting method for forging-free direct rolling Ti-Al-Nb-Zr-Mo alloy ingot |
| CN113249588A (en) * | 2021-03-22 | 2021-08-13 | 洛阳双瑞精铸钛业有限公司 | Z-shaped pressing block for titanium and titanium alloy EB smelting and pressing die thereof |
| JP7335510B2 (en) | 2020-02-05 | 2023-08-30 | 日本製鉄株式会社 | Melting and casting method for titanium alloy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307398A (en) * | 2008-07-14 | 2008-11-19 | 西北有色金属研究院 | Process for smelting cleaning titan and titan alloy casting ingot |
| CN104212989A (en) * | 2014-08-28 | 2014-12-17 | 云南钛业股份有限公司 | Method for smelting and producing TA10 hot continuous rolling square billet by adopting electron beam cooling bed furnace |
| CN105838899A (en) * | 2016-05-18 | 2016-08-10 | 青海聚能钛业有限公司 | Electron beam cold hearth single melted TC4 titanium alloy cast ingot head feeding process |
| CN106544544A (en) * | 2016-12-06 | 2017-03-29 | 青海聚能钛业股份有限公司 | A kind of method of electron-beam cold bed furnace single melting TC4 titan alloy casting ingots |
-
2018
- 2018-04-13 CN CN201810331403.2A patent/CN108384966B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307398A (en) * | 2008-07-14 | 2008-11-19 | 西北有色金属研究院 | Process for smelting cleaning titan and titan alloy casting ingot |
| CN104212989A (en) * | 2014-08-28 | 2014-12-17 | 云南钛业股份有限公司 | Method for smelting and producing TA10 hot continuous rolling square billet by adopting electron beam cooling bed furnace |
| CN105838899A (en) * | 2016-05-18 | 2016-08-10 | 青海聚能钛业有限公司 | Electron beam cold hearth single melted TC4 titanium alloy cast ingot head feeding process |
| CN106544544A (en) * | 2016-12-06 | 2017-03-29 | 青海聚能钛业股份有限公司 | A kind of method of electron-beam cold bed furnace single melting TC4 titan alloy casting ingots |
Non-Patent Citations (1)
| Title |
|---|
| 罗雷: "TC4钛合金电子束冷床熔炼技术研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722565A (en) * | 2019-01-10 | 2019-05-07 | 青海聚能钛金属材料技术研究有限公司 | High temperature resistant titanium alloy and its preparation method and application |
| CN109722564A (en) * | 2019-01-10 | 2019-05-07 | 青海聚能钛金属材料技术研究有限公司 | Ti-6242 titanium alloy and preparation method thereof |
| JP7335510B2 (en) | 2020-02-05 | 2023-08-30 | 日本製鉄株式会社 | Melting and casting method for titanium alloy |
| CN111286637A (en) * | 2020-02-24 | 2020-06-16 | 青海聚能钛业股份有限公司 | Electron beam cold bed smelting method of TA15 titanium alloy |
| CN111286637B (en) * | 2020-02-24 | 2021-08-13 | 青海聚能钛业股份有限公司 | Electron beam cold bed smelting method of TA15 titanium alloy |
| CN111254318A (en) * | 2020-03-12 | 2020-06-09 | 西安华创新材料有限公司 | Fine smelting and purifying method for large-size nickel-titanium shape memory alloy cast ingot |
| CN112680614A (en) * | 2020-11-23 | 2021-04-20 | 昆明理工大学 | Cold cathode EB furnace smelting method for forging-free direct rolling Ti-Al-Nb-Zr-Mo alloy ingot |
| CN112680614B (en) * | 2020-11-23 | 2022-02-15 | 昆明理工大学 | Cold cathode EB furnace smelting method for forging-free direct rolling Ti-Al-Nb-Zr-Mo alloy ingot |
| CN113249588A (en) * | 2021-03-22 | 2021-08-13 | 洛阳双瑞精铸钛业有限公司 | Z-shaped pressing block for titanium and titanium alloy EB smelting and pressing die thereof |
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