CN106944492A - A kind of preparation method of TA17 titanium alloy plates - Google Patents
A kind of preparation method of TA17 titanium alloy plates Download PDFInfo
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- CN106944492A CN106944492A CN201610011005.3A CN201610011005A CN106944492A CN 106944492 A CN106944492 A CN 106944492A CN 201610011005 A CN201610011005 A CN 201610011005A CN 106944492 A CN106944492 A CN 106944492A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
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Abstract
The invention discloses a kind of preparation method of TA17 titanium alloy plates, comprise the following steps：TA17 slabs are placed in heating furnace and heated；Titanium plate is separated with stainless billet up and down；Slab carries out the first fire time rolling；After the completion of one fire time rolling, width carries out cutting blanking as required for finished product sheet material along its length；Carry out the second fire time rolling；Slab is subjected to cutting blanking along its length.The present invention utilizes and processes the principle that the tissue heredity of formation can change at the same temperature at high temperature, ensure TA17 breakdown rolling temperaures, reduce in traditional handicraft because temperature drop causes the obvious cracking phenomena of TA17 titanium alloy plates, the polishing amount in later stage is decreased simultaneously, and upper lower bolster can Reusability, it is cost-effective.
Description
Technical field
The invention belongs to titanium or titanium alloy sheet material preparing technical field, and in particular to a kind of preparation method of TA17 titanium alloy plates.
Background technology
TA17 alloys are a kind of near αtitanium alloys developed by former Soviet Union Prometheus central construct investigation of materials institute, nominal composition is Ti-4Al-2V, α/β phase transition temperature is about 890 DEG C, a small amount of Al (α stable elements) improves the intensity and heat resistance of alloy, plasticity to alloy has no significant effect, and a small amount of V (beta stable element) can play a part of crystal grain thinning and improve process plastic.The alloy has the performance characteristics such as moderate strength, good welds performance, excellent Seawater durability and higher static(al) and intensity of circulation, mainly for the manufacture of parts such as the compressor discs, blade and drum barrel of the pipeline on naval vessel, valve, evaporator, condenser and aero-engine.
Because the titanium alloy plate is single-phase titanium alloy, the texture formed in hot rolling has strong influence to follow-up cold rolling direction, if can cause if direction rolling is changed in course of hot rolling it is cold rolling in occur collapsing material, scaling-off, or even phenomenon of hurting sb.'s feelings.It is domestic to be to the milling method of TA17 alloys at present：(1) so ensure that hot rolling is consistent with follow-up cold rolling direction, so as to avoid hot rolling from changing the texture development that direction is brought using direction rolling is prolonged always after broadening commutation in the first fire；(2) to make full use of the high temperature (subsequent hot rolled be to ensure organization and performance, in lower temperature rolling) of the first fiery split rolling method, using moderate finite deformation amount, multi- pass rolling；(3) hot rolling (being rolled to 4mm or so) is completed using three fire time rollings, wherein the second fire and the 3rd fiery deflection are smaller.
There is problem in this method：(1) it is not suitable for producing the TA17 sheet materials of a variety of width specifications, because the first fiery broadening commutation can be only formed a fixed width specifications, and can not subsequently change direction and then cause the slab can only to produce the sheet material of a specification (width), and the application of the sheet alloy is a variety of width specifications, this causes substantial amounts of solid accumulation and stock to producer；(2) sheet alloy is easy to cracking, tissue also rests on the slab tissue stage with coarse grain during heating once and rolling, even high temperature large deformation also easily causes surface and edge crack is serious, causes yield rate low, and surface treatment process is complicated, difficult.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of preparation method of TA17 titanium alloy plates for above-mentioned the deficiencies in the prior art.This method can produce the TA17 sheet alloys of a variety of width specifications with one block of slab in the case of the texture that avoids commutating is to cold rolling influence, and reduce the cracking situation in the operation of rolling, improve yield rate.
To achieve the above object, the present invention provides following technical scheme：
A kind of preparation method of TA17 titanium alloy plates, the preparation technology of the TA17 titanium alloy plates comprises the following steps：
S1, thickness is used for 130~180mm, width is 800~1100mm, length is 1000~1300mm TA17 slabs, and TA17 slabs are placed between two steel plates and clamped, and is placed in heating furnace and heats；
S2, the titanium plate after heating separated with stainless billet up and down；
S3, slab carry out the first fire time rolling, beginning rolls temperature >=1000 DEG C, rolling speed is 3~4m/s, 6~9 passages are rolled altogether, and pass reduction is according to tradition rolling principle " small size ", and small pass reduction scope is 3%~5%, big pass reduction scope is 6%~15%, first fire time rolling total deformation is 50~65%, the summation of mill length control width specifications for needed for several, and size of plate blank is after the completion of rolling：50~75mm of thickness, 800~1100mm of width, 2000~3800mm of length；
After the completion of S4, a fire time rolling, width carries out cutting blanking as required for finished product sheet material along its length, titanium alloy slab length after cutting is the width of upper one fire time slab, and as 800~1100mm, the titanium alloy slab width span after cutting is 750~1500mm；
S5, by the multiple size titanium alloy slabs obtained after cutting carry out second fire time rolling, beginning rolls temperature >=1000 DEG C, and it is identical with the first fire time rolling temperature, rolling speed is 3~4m/s, 6~9 passages are rolled altogether, pass reduction is according to tradition rolling principle " small size ", small pass reduction scope is 4%~7%, big pass reduction scope is 9%~16%, rolling direction is perpendicular to upper heating once and rolling direction, second fire time rolling total deformation is 50~70%, and the difference of a upper fire time deflection is controlled within 8%, and size of plate blank is after the completion of rolling：20~28mm of thickness, 750~1500mm of width, 3000~6000mm of length；
S6, slab is subjected to cutting blanking along its length, length is 800~2000mm after cutting, slab after cutting carries out the 3rd fire time rolling for 50~80 DEG C below transformation temperature, rolling speed be 3~4m/s, altogether roll 8~12 passages, pass reduction according to " first big after small " principle, big pass reduction scope is 10%~20%, small pass reduction scope is 5%~8%, and rolling total deformation is 60~80%, and size of plate blank is after the completion of rolling：4~8mm of thickness, 750~1500mm of width, 2000~4000mm of length.
It is preferred that, steel plate in the step S1 is 304 stainless steel plates, including upper stainless billet and under stainless billet, and upper stainless billet area should be greater than or equal to titanium plate area, the length of upper stainless billet should be greater than length 0mm~10mm of titanium plate, and the width of upper stainless billet should be greater than width 0mm~10mm of titanium plate；Under stainless billet area should be greater than or equal to titanium plate area, under the length of stainless billet should be greater than length 20mm~100mm of titanium plate, under the width of stainless billet should be greater than width 20mm~100mm of titanium plate.
It is preferred that, the upper stainless steel plate thickness is 3~5mm, and lower stainless steel plate thickness is to be welded with two draw rings above 20~30mm, upper stainless billet, in order to the separation of steel plate and titanium plate.
It is preferred that, separation process in the step S2 is controlled within 20s, first with crown block clamp by the overall stainless billet quick separating with of upper stainless billet and titanium plate base, 6~10s of used time, the cleek for being more than 3 meters with length again catches on the draw ring welded on upper stainless billet and rapidly separates upper stainless billet with TA17 slabs, 0~5s of used time.
It is preferred that, start rolling temperature >=1000 DEG C of the TA17 slabs, finishing temperature >=950 DEG C
It is preferred that, the TA17 slabs are coated with glass based high-temp-resistant inoxidzable coating before every fire time rolling, and coating layer thickness is 1~2mm.
The technique effect and advantage of the present invention：1st, the present invention utilizes and processes the principle that the tissue heredity of formation can change at the same temperature at high temperature, it is identical with the first fiery rolling temperature using the second fire rolling, slab after heating once and rolling is sheared along in length, cut out finished width and carry out commutation rolling, realize a TA17 slab and produce the technique of plurality of specifications TA17 sheet materials, while the processing texture avoided after commutation because of single-phase titanium alloy strongly, which causes in the operation of rolling, collapses material, cracking phenomena；In addition, the 3rd fire taken and rolled below transformation temperature, adjustable plate property makes plate property meet requirement.
2nd, operating procedure of the present invention is simple, rapid, is protected in heating process using upper lower bolster, it is ensured that TA17 breakdown rolling temperaures; reduce in traditional handicraft because temperature drop causes TA17 obvious cracking phenomena; decrease the polishing amount in later stage simultaneously, and upper lower bolster can Reusability, it is cost-effective.
3rd, the present invention can be on the basis of TA17 production technologies be ensured, using one piece of slab production different in width, the finished product sheet material of plurality of specifications, slab can be made full use of, reduce one block of slab in traditional handicraft and only produce a kind of production board of specification, improve the supply of material speed of TA17 sheet materials and considerably reduce the raw material amount of hoarding.
4th, the present invention commutates rolling using metallography is mutually synthermal, under the conditions of Variations similar amount, and the principle that texture, processing streamline can substantially change realizes one block of slab and produces different in width, the TA17 finished product sheet materials of plurality of specifications, and ensures later stage easy processing.
Embodiment
Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Embodiment 1
A kind of preparation method of TA17 titanium alloy plates, the preparation technology of the TA17 titanium alloy plates comprises the following steps：
S1, specification is used for (thickness × width x length) 180 × 1100 × 1300mm TA17 slabs, to ensure the processing temperature of TA17 sheet materials, prevent from radiating during from heating furnace to milling train, clamping TA17 slabs using two steel plates in heating carries out insulation effect；Lower stainless steel back plate sizes are 25 × 1300 × 1500m, and upper stainless steel back plate sizes are to be welded with two draw rings above 4 × 1110 × 1310m, upper stainless billet, in order to the separation of steel plate and titanium plate；
S2, the first fire time are using 1140 DEG C of heating, first TA17 slabs are separated with stainless billet up and down before rolling, first with crown block clamp by the overall stainless billet quick separating with of upper stainless billet and titanium plate base, 6~10s of used time, the cleek for being more than 3 meters with length again catches on the draw ring welded on upper stainless billet and rapidly separates upper stainless billet with TA17 slabs, 0~5s of used time；
S3, a fire time rolling total deformation are 58%, and the TA17 slabs specification after the completion of rolling is 75 × 1100 × 3120mm, and elongatedness direction cuts out width required for finished product sheet material：1100mm and 810mm (75 × 1100 × 1100mm and 75 × 810 × 1100mm)；
S4, the second fire time rolling temperature are similarly 1140 DEG C, one piece of TA17 width of plate slab direction is 1100mm, another piece of width is 810mm, and rolling total deformation is 63%, is rolled to 28mm thick (specification is 28 × 1200 × 2946mm and 28 × 810 × 2946mm).The deflection and a fire time deflection (58%) are approached, and temperature is identical, can substantially be removed a fiery residual process streamline and texture, be improved TA17 sheet material post-productions；
After the completion of S5, two fire rollings, it is that 28 × 1200 × 2946mm and 28 × 810 × 2946mm sheet materials are cut into 2 28 × 1200 × 1000mm and 2 28 × 810 × 1000mm slabs respectively by specification, is then rolled using transformation temperature temperature below, i.e., 840 DEG C.It is 76% to roll total deformation, is rolled to 7mm thickness, becomes 27 × 1200 × 4000mm and 27 × 1200 × 4000mmTA17 sheet materials.
The Microstructure Uniformity of the TA17 sheet materials prepared using the method for embodiment 1 is good, and average grain size is about 30~40 μm, and the tensile strength of TA17 sheet materials manufactured in the present embodiment is 876MPa, and yield strength is 820MPa, and elongation after fracture is 14.0%.
Embodiment 2
A kind of preparation method of TA17 titanium alloy plates, the preparation technology of the TA17 titanium alloy plates comprises the following steps：
S1, specification is used for (thickness × width x length) 150 × 900 × 1200mm TA17 slabs, to ensure the processing temperature of TA17 sheet materials, prevent from radiating during from heating furnace to milling train, clamping TA17 slabs using two steel plates in heating carries out insulation effect；Lower stainless steel back plate sizes are 20 × 1300 × 1500m, and upper stainless steel back plate sizes are to be welded with two draw rings above 3 × 910 × 1210m, upper stainless billet, in order to the separation of steel plate and titanium plate；
S2, the first fire are using 1130 DEG C of heating, first TA17 slabs are separated with stainless billet up and down before rolling, first with crown block clamp by the overall stainless billet quick separating with of upper stainless billet and titanium plate base, 6~10s of used time, the cleek for being more than 3 meters with length again catches on the draw ring welded on upper stainless billet and rapidly separates upper stainless billet with TA17 slabs, 0~5s of used time；
S3, a fire time rolling total deformation are 57%, and the TA17 slabs specification after the completion of rolling is 65 × 900 × 2769mm, and elongatedness direction cuts out width required for finished product sheet material：1100mm and 860mm (65 × 1100 × 900mm and 65 × 860 × 900mm)；
S4, the second fire time rolling temperature are similarly 1130 DEG C, one piece of TA17 width of plate slab direction is 1100mm, another piece of width is 860mm, and rolling total deformation is 62%, is rolled to 25mm thick (specification is 25 × 1100 × 2340mm and 25 × 860 × 2340mm).The deflection and a fire time deflection (57%) are approached, and temperature is identical, can substantially be removed a fiery residual process streamline and texture, be improved TA17 sheet material post-productions；
After the completion of S5, two fire rollings, it is that 25 × 1100 × 2340mm and 25 × 860 × 2340mm sheet materials are cut into 2 25 × 1100 × 800mm and 2 25 × 810 × 800mm slabs respectively by specification, is then rolled using transformation temperature temperature below, i.e., 840 DEG C.It is 80% to roll total deformation, is rolled to 5mm thickness, becomes 25 × 1200 × 4000mm and 25 × 1200 × 4000mmTA17 sheet materials.
The Microstructure Uniformity of the TA17 sheet materials prepared using the method for embodiment 2 is good, and average grain size is about 20~40 μm, and the tensile strength of TA17 sheet materials manufactured in the present embodiment is 866MPa, and yield strength is 816MPa, and elongation after fracture is 16.5%.
Embodiment 3
A kind of preparation method of TA17 titanium alloy plates, the preparation technology of the TA17 titanium alloy plates comprises the following steps：
S1, specification is used for (thickness × width x length) 130 × 850 × 1300mm TA17 slabs, to ensure the processing temperature of TA17 sheet materials, prevent from radiating during from heating furnace to milling train, TA17 slabs are clamped using two steel plates carry out insulation effect in heating, lower stainless steel back plate sizes are 30 × 1000 × 1500m, upper stainless steel back plate sizes are to be welded with two draw rings above 4 × 850 × 1300m, upper stainless billet, in order to the separation of steel plate and titanium plate；
S2, the first fire are using 1150 DEG C of heating, first TA17 slabs are separated with stainless billet up and down before rolling, first with crown block clamp by the overall stainless billet quick separating with of upper stainless billet and titanium plate base, 6~10s of used time, the cleek for being more than 3 meters with length again catches on the draw ring welded on upper stainless billet and rapidly separates upper stainless billet with TA17 slabs, 0~5s of used time；
S3, a fire time rolling total deformation are 62%, and the TA17 slabs specification after the completion of rolling is 50 × 850 × 3900mm, and elongatedness direction cuts out width required for finished product sheet material：1100mm, 860mm and 810mm (50 × 1100 × 850mm, 50 × 860 × 850mm and 50 × 810 × 850mm)；
S4, the second fire time rolling temperature are similarly 1130 DEG C, one block of TA17 sheet material is 50 × 1100 × 850mm, one piece is 50 × 860 × 850mm, another piece is 50 × 810 × 850mm, it is 60% to roll total deformation, is rolled to 20mm thick (specification is 20 × 1100 × 2125mm, 20 × 860 × 2125mm and 20 × 810 × 2125mm).The deflection is close with a fire time deflection (62%), and temperature is identical, can substantially remove a fiery residual process streamline and texture, improve TA17 sheet material post-productions.
After the completion of S5, two fire rollings, the TA17 sheet materials that specification is 20 × 1100 × 2125mm, 20 × 860 × 2125mm and 20 × 810 × 2125mm are cut into 2 20 × 1100 × 800mm, 2 20 × 860 × 800mm and 2 20 × 810 × 800mm TA17 sheet materials respectively, then rolled using transformation temperature temperature below, i.e., 840 DEG C.It is 80% to roll total deformation, is rolled to 4mm thickness, becomes 24 × 1100 × 4000mm, 24 × 860 × 4000mm and 24 × 810 × 4000mmTA17 sheet materials.
The Microstructure Uniformity of the TA17 sheet materials prepared using the method for embodiment 3 is good, and average grain size is about 20~30 μm, and the tensile strength of TA17 sheet materials manufactured in the present embodiment is 838MPa, and yield strength is 763MPa, and elongation after fracture is 19.0%.
Comparative example 1
S1, specification is used for (thickness × width x length) 180 × 1100 × 1300mm TA17 alloy slabs, to ensure the processing temperature of TA17 sheet materials, prevent from radiating during from heating furnace to milling train, clamping TA17 slabs using two steel plates in heating carries out insulation effect；Lower stainless steel back plate sizes are 25 × 1300 × 1500m, and upper stainless steel back plate sizes are to be welded with two draw rings above 4 × 1110 × 1310m, upper stainless billet, in order to the separation of steel plate and titanium plate；
S2, the first fire time are using 1140 DEG C of heating, first TA17 slabs are separated with stainless billet up and down before rolling, first with crown block clamp by the overall stainless billet quick separating with of upper stainless billet and titanium plate base, 6~10s of used time, the cleek for being more than 3 meters with length again catches on the draw ring welded on upper stainless billet and rapidly separates upper stainless billet with TA17 slabs, 0~5s of used time；
S3, a fire time rolling total deformation are 58%, and the TA17 slabs specification after the completion of rolling is 75 × 1100 × 3120mm, and elongatedness direction cuts into 3 75 × 1100 × 1000mm sheet material；
S4, the second fire time rolling temperature are similarly 1140 DEG C, are still rolled along a fire time length direction, rolling total deformation is 63%, are rolled to 28mm thick (specification is 28 × 1100 × 2678mmm)；
After the completion of S5, two fire rollings, it is that 28 × 1100 × 2678mm sheet shearings are 2 28 × 1100 × 1000mm slabs by specification, is then rolled using transformation temperature temperature below, i.e., 840 DEG C.It is 76% to roll total deformation, is rolled to 7mm thickness, becomes 27 × 1100 × 4000mmTA17 sheet materials.
The Microstructure Uniformity of the TA17 sheet materials prepared using the method for comparative example 1 is general, and average grain size is about 30~60 μm, and the tensile strength of TA17 sheet materials prepared by this comparative example is 863MPa, and yield strength is 820MPa, and elongation after fracture is 13.0%.
The mechanical experimental results of TA17 sheet materials prepared by comparative analysis embodiment 1-3 and comparative example 1, illustrate that using TA17 sheet materials prepared by the present invention commutation rolling sheet material of a variety of width specifications can not only be prepared on one block of slab, and prepared TA17 sheet materials Microstructure Uniformity is more preferably, comprehensive mechanical property is matched more preferably.
Finally it should be noted that：It the foregoing is only the preferred embodiments of the present invention; it is not intended to limit the invention; although the present invention is described in detail with reference to the foregoing embodiments; for a person skilled in the art; it can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent to which part technical characteristic, within the spirit and principles of the invention; any modifications, equivalent substitutions and improvements made etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of preparation method of TA17 titanium alloy plates, it is characterised in that the preparation technology of the TA17 titanium alloy plates comprises the following steps：
S1, thickness is used for 130~180mm, width is 800~1100mm, length is 1000~1300mm TA17 slabs, and TA17 slabs are placed between two steel plates and clamped, and is placed in heating furnace and heats；
S2, the titanium plate after heating separated with stainless billet up and down；
S3, slab carry out the first fire time rolling, beginning rolls temperature >=1000 DEG C, rolling speed is 3~4m/s, 6~9 passages are rolled altogether, and pass reduction is according to tradition rolling principle " small size ", and small pass reduction scope is 3%~5%, big pass reduction scope is 6%~15%, first fire time rolling total deformation is 50~65%, the summation of mill length control width specifications for needed for several, and size of plate blank is after the completion of rolling：50~75mm of thickness, 800~1100mm of width, 2000~3800mm of length；
After the completion of S4, a fire time rolling, width carries out cutting blanking as required for finished product sheet material along its length, titanium alloy slab length after cutting is the width of upper one fire time slab, and as 800~1100mm, the titanium alloy slab width span after cutting is 750~1500mm；
S5, by the multiple size titanium alloy slabs obtained after cutting carry out second fire time rolling, beginning rolls temperature >=1000 DEG C, and it is identical with the first fire time rolling temperature, rolling speed is 3~4m/s, 6~9 passages are rolled altogether, pass reduction is according to tradition rolling principle " small size ", small pass reduction scope is 4%~7%, big pass reduction scope is 9%~16%, rolling direction is perpendicular to upper heating once and rolling direction, second fire time rolling total deformation is 50~70%, and the difference of a upper fire time deflection is controlled within 8%, and size of plate blank is after the completion of rolling：20~28mm of thickness, 750~1500mm of width, 3000~6000mm of length；
S6, slab is subjected to cutting blanking along its length, length is 800~2000mm after cutting, slab after cutting carries out the 3rd fire time rolling for 50~80 DEG C below transformation temperature, rolling speed be 3~4m/s, altogether roll 8~12 passages, pass reduction according to " first big after small " principle, big pass reduction scope is 10%~20%, small pass reduction scope is 5%~8%, and rolling total deformation is 60~80%, and size of plate blank is after the completion of rolling：4~8mm of thickness, 750~1500mm of width, 2000~4000mm of length.
2. a kind of preparation method of TA17 titanium alloy plates according to claim 1, it is characterised in that：Steel plate in the step S1 is 304 stainless steel plates, including upper stainless billet and under stainless billet, and upper stainless billet area should be greater than or equal to titanium plate area, the length of upper stainless billet should be greater than length 0mm~10mm of titanium plate, and the width of upper stainless billet should be greater than width 0mm~10mm of titanium plate；Under stainless billet area should be greater than or equal to titanium plate area, under the length of stainless billet should be greater than length 20mm~100mm of titanium plate, under the width of stainless billet should be greater than width 20mm~100mm of titanium plate.
3. a kind of preparation method of TA17 titanium alloy plates according to claim 2, it is characterised in that：The upper stainless steel plate thickness is 3~5mm, and lower stainless steel plate thickness is to be welded with two draw rings above 20~30mm, upper stainless billet, in order to the separation of steel plate and titanium plate.
4. a kind of preparation method of TA17 titanium alloy plates according to claim 1, it is characterised in that：Separation process in the step S2 is controlled within 20s, first with crown block clamp by the overall stainless billet quick separating with of upper stainless billet and titanium plate base, 6~10s of used time, the cleek for being more than 3 meters with length again catches on the draw ring welded on upper stainless billet and rapidly separates upper stainless billet with TA17 slabs, 0~5s of used time.
5. a kind of preparation method of TA17 titanium alloy plates according to claim 1, it is characterised in that：Start rolling temperature >=1000 DEG C of the TA17 slabs, finishing temperature >=950 DEG C.
6. a kind of preparation method of TA17 titanium alloy plates according to claim 1, it is characterised in that：The TA17 slabs are coated with glass based high-temp-resistant inoxidzable coating before every fire time rolling, and coating layer thickness is 1~2mm.
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Cited By (5)
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| CN107900129A (en) * | 2017-11-10 | 2018-04-13 | 西部钛业有限责任公司 | A kind of processing method of improvement TA5 A titanium alloy wide medium-thick plate templates |
| CN107931354A (en) * | 2017-12-15 | 2018-04-20 | 西北有色金属研究院 | A kind of short flow process of high-ductility low yield strength titanium plate |
| CN111644465A (en) * | 2019-11-22 | 2020-09-11 | 西部金属材料股份有限公司 | A kind of high temperature titanium alloy sheet and its preparation method and application |
| CN114226456A (en) * | 2021-12-16 | 2022-03-25 | 西部钛业有限责任公司 | Rolling method of TA12A titanium alloy plate |
| CN114850215A (en) * | 2022-04-27 | 2022-08-05 | 燕山大学 | TiAl alloy plate rolling method and device |
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