CN105154738B - Vanadium, chrome and titanium alloy plate and preparation method thereof - Google Patents
Vanadium, chrome and titanium alloy plate and preparation method thereof Download PDFInfo
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- CN105154738B CN105154738B CN201510522094.3A CN201510522094A CN105154738B CN 105154738 B CN105154738 B CN 105154738B CN 201510522094 A CN201510522094 A CN 201510522094A CN 105154738 B CN105154738 B CN 105154738B
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Abstract
The invention relates to a vanadium, chrome and titanium alloy plate and a preparation method thereof, and belongs to the technical field of metal plastic machining. The vanadium, chrome and titanium alloy plate is composed of, by weight percentage, 75-94% of V, 2.9-15% of Cr, 2.6-10% of Ti and the balanced inevitable impurities not more than 0.5%. The vanadium, chrome and titanium alloy plate is prepared by sequentially conducting ingot casting homogenizing annealing, canned hammer cogging, canned hot rolling, cold rolling, solid solution and aging treatment, argon filling cooling following a furnace and other procedures with smelting cast ingots as blanks. The obtained V-Cr-Ti alloy plate is small in crystalline grain, uniform in component, good in surface quality and excellent in performance.
Description
Technical field
The present invention relates to a kind of vanadium chromium titanium alloy sheet and preparation method thereof, belongs to Metal Forming technical field.
Background technology
Vanadium chromium titanium alloy has best combination property because of which, such as low-activity steady in a long-term, low decay heat, and can
Recycle；Flouride-resistani acid phesphatase swelling, temperature can reach 850 DEG C of thermostability, highly thermally conductive, low-thermal-expansion, low thermal stress, high temperature
It is suitable for the limit, has the good compatibility, and good processability in liquid lithium loop, thin slice can be rolled into, pipe is extruded into
Shape, weldability are good etc., are known as in the industry the first-selected low activatable structural material for being the first wall of thermonuclear fusion heap/involucrum.
Since the sixties in 20th century, foreign countries have begun to preparation and the basic research work of vanadium alloy.Current preparation method
Mainly there are electronic torch melting, vacuum self-consumption electrode arc melting, magnetic levitation melting and powder metallurgy.The U.S. adopts electronic torch melting
The duplex method of+vacuum self-consumption electrode arc melting, has prepared the V-5Cr-5Ti alloy cast ingots of 1200kg, and in 1996
Apply it in DIII-D Tokamak devices.Subsequently, China starts to research and develop emphatically such alloy, main preparation methods
For vacuum self-consumption electrode arc melting and magnetic levitation melting, but still in the laboratory research stage；Also adopt electronic torch melting
Method carries out melting, but not disclosed report.
For this sensitive alloy material of V-Cr-Ti alloys, though there are research, achievement in research in some scientific research institutions in the world
It is most to be in confidential state, it is rarely reported with regard to the detailed machined parameters of the alloy.Technology of preparing of the China with regard to such alloy
Start to walk, than later, scale less (tens grams～100 kilograms) and not enough system, mainly to carry out in the lab with theoretical research
Research test, and achievement in research report is few.
Using the large-scale production of the achievable V-Cr-Ti alloys of vacuum self-consumption electrode arc melting method, and by forging,
The controllable process means such as rolling, heat treatment, can prepare that crystal grain is tiny, composition is uniform, surface quality good, the V- of excellent performance
Cr-Ti sheet alloys.
The content of the invention
First technical problem to be solved by this invention is to provide a kind of has that crystal grain is tiny, composition is uniform, surface matter
Measure, the vanadium chromium titanium alloy sheet of excellent performance.
Vanadium chromium titanium alloy sheet of the present invention, is made up of following weight percent composition：V 75～94%, Cr 2.9～15%,
Ti 2.6～10%, balance of inevitable impurity；Wherein, the impurity element Ni, Mo, Nb, Cu, Al, Fe, Si, P, W, Zr,
Gross mass≤0.5% of S, N, C, O.
Further, as preferred technical scheme, vanadium chromium titanium alloy sheet described above, by following weight percent composition
Composition：V 80～89%, Cr 6～10%, Ti 4.5～8%, balance of inevitable impurity.
Vanadium chromium titanium alloy sheet yield strength >=390MPa described above, tensile strength >=500MPa, percentage elongation >=25% break
Face shrinkage factor >=65%.
The thickness of vanadium chromium titanium alloy sheet described above is 0.5～6mm.
Second technical problem to be solved by this invention is to provide a kind of preparation method of vanadium chromium titanium alloy sheet, specially
There is provided one kind with melting ingot casting as blank, successively carry out ingot homogenization annealing, canned forging cogging, jacket hot rolling, it is cold rolling and
Solid solution+Ageing Treatment+prepare the process route of vanadium chromium titanium alloy plate with operations such as stove argon filling coolings.
The preparation method of vanadium chromium titanium alloy sheet of the present invention, comprises the following steps：
A, the percentage by weight constituted according to the raw material of alloy sheets, prepare V 75～94%, Cr 2.9～15%, Ti 2.6
～10%, the inevitable impurity of balance of gross mass≤0.5%；
B, by a steps ready raw material melting, obtain V- (2.9～15wt%) Cr- (2.6～10wt%) Ti alloys casting
Ingot, in a vacuum furnace with the ramp of 3～20 DEG C/min to 1000～1350 DEG C, is incubated 0.5～8h, furnace cooling under vacuum
To room temperature；
The step will obtain alloy cast ingot after alloy raw material melting, the heat treatment in vacuum furnace, and can eliminate casting should
Power and make uniform texture；
Blank is cut on c, the ingot casting after b step cooling, chamfering, polishing are put into jacket, and to jacket evacuation, with 3
The ramp of～20 DEG C/min by jacket seal welding, obtains alloy forging jacket to 750～850 DEG C after 1～3h of insulation
Body；
To jacket evacuation in the step, and by jacket seal welding, alloy forging jacket body is obtained, is to realize
To protection against oxidation of the alloy in hot forging process；
D, the alloy forging jacket body for obtaining step c are in resistance furnace with the ramp of 5～20 DEG C/min to 1050
～1350 DEG C, after 0.5～4h of insulation, hammer cogging is carried out on 1～3 ton of pneumatic hammer, water quenching is down to room temperature and removes jacket,
Cleaning, processes the hot rolling slab of rectangularity or square sectional；
Wherein, the starting forging temperature of hammer cogging is 1050～1350 DEG C, and final forging temperature is 1000～1300 DEG C, passage deformation
Measure as 5～20%, total deformation is 40～80%, be 1～30min with stove insulation between passage；
E, the hot rolling slab for obtaining Step d are obtained hot rolling bag according to the method that step c manufactures alloy forging jacket body
Body, will hot rolling slab be put into jacket and be placed in vacuum furnace, be evacuated to 3～10 × 10-3Pa, then with 3～
The ramp of 20 DEG C/min to 750～850 DEG C, 1～3h of temperature retention time；After insulation terminates, jacket seal welding is closed
Golden hot rolling jacket body, to realize the protection against oxidation to the alloy in the hot rolling；Again in resistance furnace with 5～20 DEG C/
The ramp of min is incubated 0.5～4h to 1050～1350 DEG C, at such a temperature, then carries out hot rolling on duo mill and adds
Work, carries out Water Quenching to rolling jacket body after the completion of hot rolling and is down to room temperature and removes jacket, cleans alloy and simultaneously cuts off micro-crack
Deng rejected region, the slab of regular sections is processed in trimming；
Wherein, the start rolling temperature of hot rolling is 1050～1350 DEG C, and finishing temperature is 1000～1300 DEG C, mill speed
For 0.1～5m/min, pass deformation is 2～20%, and total deformation is 40～80%, between passage with stove insulation for 1～
30min；
F, the slab for obtaining step e are protected in a vacuum furnace with the ramp of 5～20 DEG C/min to 900～1250 DEG C
0.5～4h of temperature, vacuum annealing, vacuum are 3～10 × 10-3Pa, cools to room temperature with the furnace, obtains cold rolling using slab；
G, the cold rolling use slab for obtaining f steps are entered with slab to cold rolling using duo mill under air at room temperature atmosphere
The cold rolling processing of row, it is cold rolling after the completion of clean alloy, trimming is processed into the plate in the section of rule, obtains the cold rolling of specific thicknesses
Plate；
Wherein, the mill speed of cold rolling processing is 0.1～5m/min, and pass deformation is 1～10%, and total deformation is 40
～95%；
H, by g steps obtain cold-reduced sheet in a vacuum furnace with the ramp of 5～20 DEG C/min to 900～1250 DEG C,
Solution treatment after 0.5～4h of insulation, cools to 500～850 DEG C with the furnace, carries out Ageing Treatment, subsequently adopt after 1～24h of insulation
Room temperature is down to the stove argon filling type of cooling, is cleaned, is obtained final product.
The preparation method of vanadium chromium titanium alloy sheet described above, wherein carrying out melting to raw material in the b step selects vacuum
It is a kind of in consumable arc-melting stove, electron beam furnace or induction suspending stove.
The preparation method of vanadium chromium titanium alloy sheet described above, wherein being to jacket evacuation or the vacuum in vacuum drying oven
3～10 × 10-3Pa。
The preparation method of above-mentioned vanadium chromium titanium alloy sheet, the material of the jacket be 1Cr18Ni9Ti rustless steels, the pure titaniums of TA1 or
One kind in TC4 titanium alloys, thickness are 1～20mm；Its internal structure is：Press from both sides between the bearing up-down force end face of blank and jacket face
There is graphite heat conducting pad, between blank side and jacket wall, be filled with alumina silicate fiber felt.
The preparation method of above-mentioned vanadium chromium titanium alloy sheet, the cleaning is for cleaning alloy and cuts off the rejected regions such as micro-crack,
So that the alloy surface for obtaining is more regular, more complete.
Vanadium chromium titanium alloy sheet of the present invention and preparation method thereof has the advantages that：
(1) the V-Cr-Ti sheet alloy crystal grain of present invention acquisition is tiny, composition is uniform, surface quality good, excellent performance；
(2) method that the present invention prepares vanadium chromium titanium alloy sheet, using vacuum canning, is thermally treated resulting in alloy forging jacket
Body, realizes the protection against oxidation in hot forging process to the alloy, and jacket internal structure uses resistant to elevated temperatures aluminium silicate fiber
Dimension felt is incubated to stock side in being filled into jacket, and effect is preferable；Make between the bearing up-down force end face of blank and jacket face
With the high Graphite pad of heat conductivity, be conducive to blank end face heat temperature raising and temperature uniform, also play pressing process
The effect of middle end face friction, lubrication, reduces finished surface crackle odds.
Description of the drawings
Design structure schematic diagrams of the Fig. 1 for jacket：1 is alloy blank, and 2 is alumina silicate fiber felt, and 3 is jacket, and 4 is graphite
Pad.
Specific embodiment
Vanadium chromium titanium alloy sheet of the present invention, is made up of following weight percent composition：V 75～94%, Cr 2.9～15%,
Ti 2.6～10%, balance of inevitable impurity；Wherein, the impurity element Ni, Mo, Nb, Cu, Al, Fe, Si, P, W, Zr,
Gross mass≤0.5% of S, N, C, O.
Further, as preferred technical scheme, vanadium chromium titanium alloy sheet described above, by following weight percent composition
Composition：V 80～89%, Cr 6～10%, Ti 4.5～8%, balance of inevitable impurity.
Vanadium chromium titanium alloy sheet yield strength >=390MPa described above, tensile strength >=500MPa, percentage elongation >=25% break
Face shrinkage factor >=65%.
The thickness of vanadium chromium titanium alloy sheet described above is 0.5～6mm.
Second technical problem to be solved by this invention is to provide a kind of preparation method of vanadium chromium titanium alloy sheet, specially
There is provided one kind with melting ingot casting as blank, successively carry out ingot homogenization annealing, canned forging cogging, jacket hot rolling, it is cold rolling and
Solid solution+Ageing Treatment+prepare the process route of vanadium chromium titanium alloy plate with operations such as stove argon filling coolings.
The preparation method of vanadium chromium titanium alloy sheet of the present invention, comprises the following steps：
A, the percentage by weight constituted according to the raw material of alloy sheets, prepare V 75～94%, Cr 2.9～15%, Ti 2.6
～10%, the inevitable impurity of balance of gross mass≤0.5%；
B, by a steps ready raw material melting, obtain V- (2.9～15wt%) Cr- (2.6～10wt%) Ti alloys casting
Ingot, in a vacuum furnace with the ramp of 3～20 DEG C/min to 1000～1350 DEG C, is incubated 0.5～8h, furnace cooling under vacuum
To room temperature；
The step will obtain alloy cast ingot after alloy raw material melting, the heat treatment in vacuum furnace, and can eliminate casting should
Power and make uniform texture；
Blank is cut on c, the ingot casting after b step cooling, chamfering, polishing are put into jacket, and to jacket evacuation, with 3
The ramp of～20 DEG C/min by jacket seal welding, obtains alloy forging jacket to 750～850 DEG C after 1～3h of insulation
Body；
To jacket evacuation in the step, and by jacket seal welding, alloy forging jacket body is obtained, is to realize
To protection against oxidation of the alloy in hot forging process；
D, the alloy forging jacket body for obtaining step c are in resistance furnace with the ramp of 5～20 DEG C/min to 1050
～1350 DEG C, after 0.5～4h of insulation, hammer cogging is carried out on 1～3 ton of pneumatic hammer, water quenching is down to room temperature and removes jacket,
Cleaning, processes the hot rolling slab of rectangularity or square sectional；
Wherein, the starting forging temperature of hammer cogging is 1050～1350 DEG C, and final forging temperature is 1000～1300 DEG C, passage deformation
Measure as 5～20%, total deformation is 40～80%, be 1～30min with stove insulation between passage；
E, the hot rolling slab for obtaining Step d are obtained hot rolling bag according to the method that step c manufactures alloy forging jacket body
Body, will hot rolling slab be put into jacket and be placed in vacuum furnace, be evacuated to 3～10 × 10-3Pa, then with 3～
The ramp of 20 DEG C/min to 750～850 DEG C, 1～3h of temperature retention time；After insulation terminates, jacket seal welding is closed
Golden hot rolling jacket body, to realize the protection against oxidation to the alloy in the hot rolling；Again in resistance furnace with 5～20 DEG C/
The ramp of min is incubated 0.5～4h to 1050～1350 DEG C, at such a temperature, then carries out hot rolling on duo mill and adds
Work, carries out Water Quenching to rolling jacket body after the completion of hot rolling and is down to room temperature and removes jacket, cleans alloy and simultaneously cuts off micro-crack
Deng rejected region, the slab of regular sections is processed in trimming；
Wherein, the start rolling temperature of hot rolling is 1050～1350 DEG C, and finishing temperature is 1000～1300 DEG C, mill speed
For 0.1～5m/min, pass deformation is 2～20%, and total deformation is 40～80%, between passage with stove insulation for 1～
30min；
F, the slab for obtaining step e are protected in a vacuum furnace with the ramp of 5～20 DEG C/min to 900～1250 DEG C
0.5～4h of temperature, vacuum annealing, vacuum are 3～10 × 10-3Pa, cools to room temperature with the furnace, obtains cold rolling using slab；
G, the cold rolling use slab for obtaining f steps are entered with slab to cold rolling using duo mill under air at room temperature atmosphere
The cold rolling processing of row, it is cold rolling after the completion of clean alloy, trimming is processed into the plate in the section of rule, obtains the cold rolling of specific thicknesses
Plate；
Wherein, the mill speed of cold rolling processing is 0.1～5m/min, and pass deformation is 1～10%, and total deformation is 40
～95%；
H, by g steps obtain cold-reduced sheet in a vacuum furnace with the ramp of 5～20 DEG C/min to 900～1250 DEG C,
Solution treatment after 0.5～4h of insulation, cools to 500～850 DEG C with the furnace, carries out Ageing Treatment, subsequently adopt after 1～24h of insulation
Room temperature is down to the stove argon filling type of cooling, is cleaned, is obtained final product.
The preparation method of vanadium chromium titanium alloy sheet described above, wherein carrying out melting to raw material in the b step selects vacuum
It is a kind of in consumable arc-melting stove, electron beam furnace or induction suspending stove.
The preparation method of vanadium chromium titanium alloy sheet described above, wherein being to jacket evacuation or the vacuum in vacuum drying oven
3～10 × 10-3Pa。
The preparation method of above-mentioned vanadium chromium titanium alloy sheet, the material of the jacket be 1Cr18Ni9Ti rustless steels, the pure titaniums of TA1 or
One kind in TC4 titanium alloys, thickness are 1～20mm；Its internal structure is：Press from both sides between the bearing up-down force end face of blank and jacket face
There is graphite heat conducting pad, between blank side and jacket wall, be filled with alumina silicate fiber felt.
The preparation method of above-mentioned vanadium chromium titanium alloy sheet, the cleaning is for cleaning alloy and cuts off the rejected regions such as micro-crack,
So that the alloy surface for obtaining is more regular, more complete.
The specific embodiment of the present invention is further described with reference to embodiment, not therefore by present invention limit
System is among described scope of embodiments.
Embodiment 1
(1) percentage by weight constituted according to the raw material of alloy sheets, prepares V 89%, Cr5.9%, Ti5%, balance of total
The inevitable impurity of quality≤0.5%；
(2) alloy melting is carried out using vacuum self-consumption electrode arc melting method twice and obtains V-5.9wt%Cr-5wt%
Ti alloy cast ingots, ingot casting are put in vacuum furnace and are incubated 1h with the ramp of 5 DEG C/min to after 1100 DEG C, vacuum in stove
Spend for 5 × 10-3Pa, after insulation terminates, vacuum furnace cooling；
(3) cylindrical blank chamfering of 50mm thickness are cut on the ingot casting after vacuum annealing process, is put after polished surface
Enter jacket to be placed in vacuum furnace, be evacuated to 5 × 10-3Pa, then with the ramp of 5 DEG C/min to 800 DEG C, insulation
Time 1h；After insulation terminates, by jacket seal welding, alloy forging jacket body is obtained；
(4) alloy forging jacket body is incubated to after 1200 DEG C with the ramp of 5 DEG C/min in chamber type electric resistance furnace
100min, then carries out hammer cogging on 1～3 ton of pneumatic hammer, and starting forging temperature is 1150 DEG C, and final forging temperature is 1050 DEG C, road
Secondary deflection is 15%, and total deformation is 50%, is incubated as 30min with stove between passage.Enter to forging jacket body after the completion of forging
Row Water Quenching is down to room temperature and removes jacket, cleans alloy and cuts off the rejected regions such as micro-crack, trimming processing rectangularity
Or the hot rolling slab of square sectional；
(5) hot rolling slab is put into jacket to be placed in vacuum furnace, is evacuated to 5 × 10-3Pa, then with 5 DEG C/
The ramp of min to 800 DEG C, temperature retention time 1h；After insulation terminates, by jacket seal welding, alloy hot rolling jacket body is obtained.
Hot rolling jacket body is put in chamber type electric resistance furnace, with the ramp of 5 DEG C/min to 1100 DEG C, and 80min is incubated, then two
Carry out hot rolling on roller mill, start rolling temperature is 1100 DEG C, finishing temperature is 1000 DEG C, mill speed is 2m/min, passage
Deflection is 10%, and it is 30min to be incubated with stove between passage, and total deformation reaches 60%.Carry out to rolling jacket body after the completion of hot rolling
Water Quenching is down to room temperature and removes jacket, cleans alloy and cuts off the rejected regions such as micro-crack, and regular sections are processed in trimming
Slab；
(6) slab is carried out vacuum to 1000 DEG C of insulation 1h with the ramp of 5 DEG C/min in vacuum furnace to move back
Fire is processed, and vacuum is 5 × 10-3Pa, then cools to room temperature with the furnace, and acquisition is cold rolling to use slab；
(7) under air at room temperature atmospheric condition, cold rolling processing, mill speed are carried out with slab to cold rolling using duo mill
For 2m/min, pass deformation is 10%, and total deformation reaches 80%.Alloy is cleaned after the completion of cold rolling and micro-crack etc. is cut off and is lacked
The plate of regular sections is processed at sunken position, trimming, obtains the cold-reduced sheet of 2mm thickness；
(8) cold-reduced sheet is carried out at solid solution to 1100 DEG C of insulation 1h with the ramp of 10 DEG C/min in vacuum furnace
Reason, vacuum are 5 × 10-3Pa, then cooling to 600 DEG C of insulation 20h with the furnace carries out Ageing Treatment, subsequently using cold with stove argon filling
But mode is down to room temperature.Alloy is cleaned, the V-Cr-Ti sheet alloy finished products of 2mm thickness are finally given.
The present embodiment sheath material is 1Cr18Ni9Ti, and thickness is 3mm；Jacket internal structure is, the bearing up-down force of blank
1mm thickness graphite heat conducting pads are accompanied between end face and jacket face, alumina silicate fiber felt between blank side and jacket wall, is filled with.
In the present embodiment, the roller diameter of duo mill is 350mm.
Room temperature tensile Mechanics Performance Testing is pressed GB/T228.1-2010 samplings and is tested, and sample marking distance is 17mm, and thickness is
2mm, measures on electronic universal tester.Yield strength is 395MPa, and tensile strength is 510MPa, and percentage elongation is 35%, is broken
Face shrinkage factor is about 70%.
Embodiment 2
(1) percentage by weight constituted according to the raw material of alloy sheets, prepares V 90%, Cr 5%, Ti 4.8%, balance of
The inevitable impurity of gross mass≤0.5%；
(2) alloy melting is carried out using vacuum self-consumption electrode arc melting method twice and obtains V-5wt%Cr-4.8wt%
Ti alloy cast ingots, ingot casting are put in vacuum furnace and are incubated 1h with the ramp of 10 DEG C/min to after 1100 DEG C, true in stove
Reciprocal of duty cycle is 5 × 10-3Pa, after insulation terminates, vacuum furnace cooling；
(3) cylindrical blank chamfering of 50mm thickness are cut on the ingot casting after vacuum annealing process, is put after polished surface
Enter jacket to be placed in vacuum furnace, be evacuated to 5 × 10-3Pa, then with the ramp of 10 DEG C/min to 800 DEG C, protects
Warm time 1h；After insulation terminates, by jacket seal welding, alloy forging jacket body is obtained；
(4) alloy forging jacket body is incubated to after 1250 DEG C with the ramp of 10 DEG C/min in chamber type electric resistance furnace
100min, then carries out hammer cogging on 1～3 ton of pneumatic hammer, and starting forging temperature is 1200 DEG C, and final forging temperature is 1050 DEG C, road
Secondary deflection is 15%, and total deformation is 40%, is incubated as 30min with stove between passage.Enter to forging jacket body after the completion of forging
Row Water Quenching is down to room temperature and removes jacket, cleans alloy and cuts off the rejected regions such as micro-crack, trimming processing rectangularity
Or the hot rolling slab of square sectional；
(5) hot rolling slab is put into jacket to be placed in vacuum furnace, is evacuated to 5 × 10-3Pa, then with 10
DEG C/ramp of min to 800 DEG C, temperature retention time 1h；After insulation terminates, by jacket seal welding, alloy hot rolling jacket is obtained
Body.Hot rolling jacket body is put in chamber type electric resistance furnace, with the ramp of 10 DEG C/min to 1150 DEG C, and 100min is incubated, so
Hot rolling is carried out on duo mill afterwards, start rolling temperature is 1100 DEG C, and finishing temperature is 1000 DEG C, and mill speed is 2.2m/
Min, pass deformation are 10%, and it is 30min to be incubated with stove between passage, and total deformation reaches specific thicknesses more than 60%.Hot rolling is complete
Carry out Water Quenching and be down to room temperature and remove jacket to rolling jacket body into rear, cleaning alloy simultaneously cuts off the defective parts such as micro-crack
The slab of regular sections is processed in position, trimming；
(6) slab is carried out vacuum to 1000 DEG C of insulation 1h with the ramp of 10 DEG C/min in vacuum furnace to move back
Fire is processed, and vacuum is 5 × 10-3Pa, then cools to room temperature with the furnace, and acquisition is cold rolling to use slab；
(7) under air at room temperature atmospheric condition, cold rolling processing, mill speed are carried out with slab to cold rolling using duo mill
For 2m/min, pass deformation is successively decreased by 10%, and total deformation reaches 60%.Alloy is cleaned after the completion of cold rolling and micro-crack is cut off
Deng rejected region, the plate of regular sections is processed in trimming, obtains the cold-reduced sheet of 4.8mm thickness；
(8) cold-reduced sheet is carried out at solid solution to 1100 DEG C of insulation 1h with the ramp of 10 DEG C/min in vacuum furnace
Reason, vacuum are 5 × 10-3Pa, then cooling to 650 DEG C of insulation 20h with the furnace carries out Ageing Treatment, subsequently using cold with stove argon filling
But mode is down to room temperature.Alloy is cleaned, the V-Cr-Ti sheet alloy finished products of 4.8mm thickness are finally given.
The present embodiment sheath material is 1Cr18Ni9Ti, and thickness is 6mm；Jacket internal structure is, the bearing up-down force of blank
1mm thickness graphite heat conducting pads are accompanied between end face and jacket face, alumina silicate fiber felt between blank side and jacket wall, is filled with.
In the present embodiment, the roller diameter of duo mill is 350mm.
Room temperature tensile Mechanics Performance Testing is pressed GB/T228.1-2010 samplings and is tested, and sample marking distance is 17mm, and thickness is
4.8mm, measures on electronic universal tester.Yield strength is 401MPa, and tensile strength is 519MPa, and percentage elongation is 28%,
The contraction percentage of area is about 65%.
Embodiment 3
(1) percentage by weight constituted according to the raw material of alloy sheets, prepares V 84%, Cr 5.9%, Ti 10%, surplus
For the inevitable impurity of gross mass≤0.5%；
(2) alloy melting is carried out using vacuum self-consumption electrode arc melting method twice and obtains V-5.9wt%Cr-10wt%
Ti alloy cast ingots, ingot casting are put in vacuum furnace and are incubated 1h with the ramp of 10 DEG C/min to after 1150 DEG C, true in stove
Reciprocal of duty cycle is 5 × 10-3Pa, after insulation terminates, vacuum furnace cooling；
(3) cylindrical blank chamfering of 50mm thickness are cut on the ingot casting after vacuum annealing process, is put after polished surface
Enter jacket to be placed in vacuum furnace, be evacuated to 5 × 10-3Pa, then with the ramp of 10 DEG C/min to 800 DEG C, protects
Warm time 1h；After insulation terminates, by jacket seal welding, alloy forging jacket body is obtained；
(4) alloy forging jacket body is incubated to after 1250 DEG C with the ramp of 10 DEG C/min in chamber type electric resistance furnace
120min, then carries out hammer cogging on 1～3 ton of pneumatic hammer, and starting forging temperature is 1200 DEG C, and final forging temperature is 1050 DEG C, road
Secondary deflection is 15%, and total deformation is 40%, is incubated as 30min with stove between passage.Enter to forging jacket body after the completion of forging
Row Water Quenching is down to room temperature and removes jacket, cleans alloy and cuts off the rejected regions such as micro-crack, trimming processing rectangularity
Or the hot rolling slab of square sectional；
(5) hot rolling slab is put into jacket to be placed in vacuum furnace, is evacuated to 5 × 10-3Pa, then with 10
DEG C/ramp of min to 800 DEG C, temperature retention time 1h；After insulation terminates, by jacket seal welding, alloy hot rolling jacket is obtained
Body.Hot rolling jacket body is put in chamber type electric resistance furnace, with the ramp of 10 DEG C/min to 1150 DEG C, and 100min is incubated, so
Hot rolling is carried out on duo mill afterwards, start rolling temperature is 1100 DEG C, and finishing temperature is 1000 DEG C, and mill speed is 2.5m/
Min, pass deformation are 10%, and it is 30min to be incubated with stove between passage, and total deformation reaches specific thicknesses more than 60%.Hot rolling is complete
Carry out Water Quenching and be down to room temperature and remove jacket to rolling jacket body into rear, cleaning alloy simultaneously cuts off the defective parts such as micro-crack
The slab of regular sections is processed in position, trimming；
(6) slab is carried out vacuum to 1000 DEG C of insulation 1h with the ramp of 10 DEG C/min in vacuum furnace to move back
Fire is processed, and vacuum is 5 × 10-3Pa, then cools to room temperature with the furnace, and acquisition is cold rolling to use slab；
(7) under air at room temperature atmospheric condition, cold rolling processing, mill speed are carried out with slab to cold rolling using duo mill
For 2m/min, pass deformation is successively decreased by 10%, and total deformation reaches 75%.Alloy is cleaned after the completion of cold rolling and micro-crack is cut off
Deng rejected region, the plate of regular sections is processed in trimming, obtains the cold-reduced sheet of 3mm thickness；
(8) cold-reduced sheet is carried out at solid solution to 1100 DEG C of insulation 1h with the ramp of 10 DEG C/min in vacuum furnace
Reason, vacuum are 5 × 10-3Pa, then cooling to 650 DEG C of insulation 20h with the furnace carries out Ageing Treatment, subsequently using cold with stove argon filling
But mode is down to room temperature.Alloy is cleaned, the V-Cr-Ti sheet alloy finished products of 3mm thickness are finally given.
The present embodiment sheath material is Titanium board, and thickness is 5mm；Jacket internal structure is, the bearing up-down force end face of blank
1mm thickness graphite heat conducting pads are accompanied between jacket face, alumina silicate fiber felt between blank side and jacket wall, is filled with.
In the present embodiment, the roller diameter of duo mill is 350mm.
Room temperature tensile Mechanics Performance Testing is pressed GB/T228.1-2010 samplings and is tested, and sample marking distance is 17mm, and thickness is
3mm, measures on electronic universal tester.Yield strength is 396MPa, and tensile strength is 511MPa, and percentage elongation is 30%, is broken
Face shrinkage factor is about 69%.
Embodiment 4
(1) percentage by weight constituted according to the raw material of alloy sheets, prepares V 82%, Cr 10%, Ti 7.8%, surplus
For the inevitable impurity of gross mass≤0.5%；
(2) alloy melting is carried out using vacuum self-consumption electrode arc melting method twice and obtains V-10wt%Cr-7.8wt%
Ti alloy cast ingots, ingot casting are put in vacuum furnace and are incubated 1h with the ramp of 5 DEG C/min to after 1150 DEG C, vacuum in stove
Spend for 5 × 10-3Pa, after insulation terminates, vacuum furnace cooling；
(3) cylindrical blank chamfering of 40mm thickness are cut on the ingot casting after vacuum annealing process, is put after polished surface
Enter jacket to be placed in vacuum furnace, be evacuated to 5 × 10-3Pa, then with the ramp of 5 DEG C/min to 800 DEG C, insulation
Time 1h；After insulation terminates, by jacket seal welding, alloy forging jacket body is obtained；
(4) alloy forging jacket body is incubated to after 1200 DEG C with the ramp of 5 DEG C/min in chamber type electric resistance furnace
100min, then carries out hammer cogging on 1～3 ton of pneumatic hammer, and starting forging temperature is 1150 DEG C, and final forging temperature is 1050 DEG C, road
Secondary deflection is 15%, and total deformation is 50%, is incubated as 30min with stove between passage.Enter to forging jacket body after the completion of forging
Row Water Quenching is down to room temperature and removes jacket, cleans alloy and cuts off the rejected regions such as micro-crack, trimming processing rectangularity
Or the hot rolling slab of square sectional；
(5) hot rolling slab is put into jacket to be placed in vacuum furnace, is evacuated to 5 × 10-3Pa, then with 5 DEG C/
The ramp of min to 800 DEG C, temperature retention time 1h；After insulation terminates, by jacket seal welding, alloy hot rolling jacket body is obtained.
Hot rolling jacket body is put in chamber type electric resistance furnace, with the ramp of 5 DEG C/min to 1100 DEG C, and 80min is incubated, then two
Carry out hot rolling on roller mill, start rolling temperature is 1100 DEG C, finishing temperature is 1000 DEG C, mill speed is 2m/min, passage
Deflection is 10%, and it is 30min to be incubated with stove between passage, and total deformation reaches specific thicknesses more than 60%.To rolling after the completion of hot rolling
Jacket body processed carries out Water Quenching and is down to room temperature and removes jacket, cleans alloy and cuts off the rejected regions such as micro-crack, and trimming adds
Slab of the work into regular sections；
(6) slab is carried out vacuum to 1000 DEG C of insulation 1h with the ramp of 5 DEG C/min in vacuum furnace to move back
Fire is processed, and vacuum is 5 × 10-3Pa, then cools to room temperature with the furnace, and acquisition is cold rolling to use slab；
(7) under air at room temperature atmospheric condition, cold rolling processing, mill speed are carried out with slab to cold rolling using duo mill
For 2m/min, pass deformation is 10%, and total deformation reaches 80%.Alloy is cleaned after the completion of cold rolling and micro-crack etc. is cut off and is lacked
The plate of regular sections is processed at sunken position, trimming, obtains the cold-reduced sheet of 1.5mm thickness；
(8) cold-reduced sheet is carried out at solid solution to 1100 DEG C of insulation 1h with the ramp of 10 DEG C/min in vacuum furnace
Reason, vacuum are 5 × 10-3Pa, then cooling to 600 DEG C of insulation 20h with the furnace carries out Ageing Treatment, subsequently using cold with stove argon filling
But mode is down to room temperature.Alloy is cleaned, the V-Cr-Ti sheet alloy finished products of 1.5mm thickness are finally given.
The present embodiment sheath material is TC4, and thickness is 3mm；Jacket internal structure is, bearing up-down force end face and the bag of blank
1mm thickness graphite heat conducting pads are accompanied between set face, alumina silicate fiber felt between blank side and jacket wall, is filled with.
In the present embodiment, the roller diameter of duo mill is 350mm.
Room temperature tensile Mechanics Performance Testing is pressed GB/T228.1-2010 samplings and is tested, and sample marking distance is 17mm, and thickness is
1.5mm, measures on electronic universal tester.Yield strength is 390MPa, and tensile strength is 501MPa, and percentage elongation is 35%,
The contraction percentage of area is about 73%.
Claims (5)
1. the preparation method of vanadium chromium titanium alloy sheet, it is characterised in that：Comprise the following steps：
A, the percentage by weight constituted according to the raw material of alloy sheets, prepare V 80～89%, Cr 6～10%, Ti 4.5～8%,
The inevitable impurity of balance of gross mass≤0.5%；
B, by a steps ready raw material melting, obtain V- (6～10wt%) Cr- (4.5～8wt%) Ti alloy cast ingots, true
With the ramp of 3～20 DEG C/min to 1000～1350 DEG C in empty stove, 0.5～8h is incubated, under vacuum, room temperature is cooled to the furnace；
Blank is cut on c, the ingot casting after b step cooling, chamfering, polishing are put into jacket, and to jacket evacuation, with 3～20
DEG C/ramp of min to 750～850 DEG C, after 1～3h of insulation, by jacket seal welding, obtain alloy forging jacket body；
D, the alloy forging jacket body that step c is obtained in resistance furnace with the ramp of 5～20 DEG C/min to 1050～
1350 DEG C, after 0.5～4h of insulation, hammer cogging is carried out on 1～3 ton of pneumatic hammer, water quenching is down to room temperature and removes jacket, clearly
Wash, process the hot rolling slab of rectangularity or square sectional；
Wherein, the starting forging temperature of hammer cogging is 1050～1350 DEG C, and final forging temperature is 1000～1300 DEG C, and pass deformation is
5～20%, total deformation is 40～80%, is incubated as 1～30min with stove between passage；
E, the hot rolling slab for obtaining Step d are obtained hot rolling jacket body according to the method that step c manufactures alloy forging jacket body,
With the ramp of 5～20 DEG C/min to 1050～1350 DEG C in resistance furnace, 0.5～4h, hot rolling, water quenching, drop are incubated
To room temperature and jacket is removed, cleaned, the slab of regular sections is processed in trimming；
Wherein, the start rolling temperature of hot rolling is 1050～1350 DEG C, and finishing temperature is 1000～1300 DEG C, and mill speed is
0.1～5m/min, pass deformation are 2～20%, and total deformation is 40～80%, are incubated as 1～30min with stove between passage；
F, the slab for obtaining step e are incubated 0.5 in a vacuum furnace with the ramp of 5～20 DEG C/min to 900～1250 DEG C
～4h, vacuum annealing cool to room temperature with the furnace, obtain cold rolling using slab；
G, the cold rolling use slab for obtaining f steps carry out cold rolling processing under air at room temperature atmosphere, it is cold rolling after the completion of cleaning close
Gold, trimming are processed into the cold-reduced sheet of the specific thicknesses of rule；
Wherein, the mill speed of cold rolling processing be 0.1～5m/min, pass deformation be 1～10%, total deformation be 40～
95%；
H, the cold-reduced sheet for obtaining g steps are incubated in a vacuum furnace with the ramp of 5～20 DEG C/min to 900～1250 DEG C
Solution treatment after 0.5～4h, cools to 500～850 DEG C with the furnace, carries out Ageing Treatment, subsequently with stove argon filling after 1～24h of insulation
Room temperature is cooled to, is cleaned, is obtained final product.
2. the preparation method of vanadium chromium titanium alloy sheet according to claim 1, it is characterised in that：Raw material is melted in b step
Refining is from a kind of in vacuum consumable arc-melting stove, electron beam furnace or induction suspending stove.
3. the preparation method of vanadium chromium titanium alloy sheet according to claim 1, it is characterised in that：Vacuum under vacuum condition is equal
For 3 × 10-3～10 × 10-3Pa。
4. the preparation method of vanadium chromium titanium alloy sheet according to claim 1, it is characterised in that：The material of jacket is
One kind in the pure titanium of 1Cr18Ni9Ti rustless steels, TA1 or TC4 titanium alloys, thickness are 1～20mm.
5. the preparation method of vanadium chromium titanium alloy sheet according to claim 4, it is characterised in that：The internal structure of jacket is：Base
Graphite heat conducting pad is accompanied between the bearing up-down force end face of material and jacket face, aluminium silicate between blank side and jacket wall, is filled with
Fiber felt.
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