CN102941228B - Preparation method of titanium alloy foil - Google Patents
Preparation method of titanium alloy foil Download PDFInfo
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- CN102941228B CN102941228B CN201210505849.5A CN201210505849A CN102941228B CN 102941228 B CN102941228 B CN 102941228B CN 201210505849 A CN201210505849 A CN 201210505849A CN 102941228 B CN102941228 B CN 102941228B
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Abstract
The invention provides a preparation method of a titanium alloy foil, comprising the following steps of: 1, carrying out surface oxidization treatment on a titanium alloy plate; 2, overlapping the titanium alloy plate which is subjected to the surface oxidization treatment between two sheets of steel plates; 3, laminating edges of the steel plates and carrying out electric arc welding on a press fit seam, reserving a ventilating opening at any one end and carrying out argon arc welding on the ventilating opening to obtain an overlapped and rolled bag; 4, heating the overlapped and rolled bag; 5, carrying out hot rolling by a four-roller rolling machine; and 6, removing the steel plates and carrying out acid washing and surface flattening treatment to obtain the titanium alloy foil with the thickness of 0.05-0.3 mm. The titanium alloy foil is prepared by using a covering, overlapping and rolling process so that the requirement on rolling equipment is greatly reduced; and a twenty-roller rolling machine which is complicated and expensive is not needed and the titanium alloy foil can be prepared by using a regular four-roller reversible hot rolling machine. The titanium alloy foil prepared by the preparation method disclosed by the invention has the advantages of controllable thickness precision and good surface quality, and is capable of realizing large-scale industrial production.
Description
Technical field
The invention belongs to titanium alloy material preparing technical field, be specifically related to a kind of preparation method of titanium alloy foil.
Background technology
Foil is a kind of staple product form of titanium alloy, has a wide range of applications.The resistance of deformation of the high-strength titanium alloys such as TC4, TB8, TB5 is large, and cold formability is good, is suitable for preparing cold rolled sheet.But in the preparation process from cold-reduced sheet to foil, alloy machining deformation drag is large, easily produces work hardening and ageing behavior, to equipment and operation requirements high, general needs 20 roller foil mill is processed, so the preparation of the foil of the high-strength titanium alloys such as TC4, TB8, TB5 exists very large difficulty.
Summary of the invention
Technical problem to be solved by this invention is, for above-mentioned the deficiencies in the prior art, to provide a kind of preparation method of titanium alloy foil.The method adopts pack ply-rolling technique to prepare titanium alloy foil, greatly reduces the requirement to rolling equipment, without the need to adopting the mill of complexity and costliness, only needs four conventional roller reversible hot-rolling mills to prepare titanium alloy foil.The thickness of the titanium alloy foil adopting the method to prepare is 0.05mm ~ 0.3mm, and excellent surface quality, can realize large-scale industrial production.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of preparation method of titanium alloy foil, is characterized in that, the method comprises the following steps:
Step one, being that the titanium alloy sheet of 0.5mm ~ 2.0mm is placed in electric furnace by thickness, is be incubated 15min ~ 20min under the condition of 600 DEG C ~ 650 DEG C to carry out surface oxidation treatment in temperature;
Step 2, the titanium alloy sheet in 2 ~ 4 steps one after surface oxidation treatment is neatly stacked between two steel plates, two described steel plates by completely coated for the titanium alloy sheet after neatly stacking, 2 ~ 4 times of the titanium alloy sheet gross thickness after the thickness of two described steel plates is and neatly stacks;
Pressing is carried out in two edgess of plate stacking titanium alloy sheet in step 2 by step 3, employing hydraulic tongs, then arc welder is adopted to carry out arc welding to pressing gap, in electric arc welding process, after pressing, the either end of steel plate reserves ventilation mouth, finally the steel plate being reserved with ventilation mouth being placed in vacuum argon arc welding case, is 1 × 10 in vacuum
-1~ 1 × 10
-2under the condition of Pa, argon arc welding is carried out to ventilation mouth, obtain ply rolling bag;
Step 4, the bag of ply rolling described in step 3 is placed in electric furnace heats, heating-up temperature is 900 DEG C ~ 980 DEG C, and heat time T meets: (D/2+20)≤T≤(D/2+30), and wherein D is the one-tenth-value thickness 1/10 of ply rolling bag, and the unit of D is the unit of mm, T is min;
Step 5, by step 4 heating after ply rolling bag send into rolling in four roller reversible hot-rolling mills, obtain rolled slab; The pass deformation rate of described rolling is 10% ~ 15%, and the total deformation rate of described rolling is 70% ~ 90%;
Steel plate in rolled slab described in step 5 removes by step 6, employing plate shearing machine, then carrying out pickling and surfacing process successively by removing the rolled slab after steel plate, obtaining the titanium alloy foil that thickness is 0.05mm ~ 0.3mm.
The preparation method of above-mentioned a kind of titanium alloy foil, is characterized in that, titanium alloy sheet described in step one is TC4 titanium alloy sheet, TB8 titanium alloy sheet or TB5 titanium alloy sheet.
The preparation method of above-mentioned a kind of titanium alloy foil, is characterized in that, titanium alloy sheet described in step one is the titanium alloy sheet of cold rolling state.
The preparation method of above-mentioned a kind of titanium alloy foil, is characterized in that, in step 2, two described steel plates are at all large than the titanium alloy sheet after neatly the stacking 15mm ~ 20mm of the size of length direction and width.
The present invention compared with prior art has the following advantages:
(1) the present invention adopts pack ply-rolling technique to prepare titanium alloy foil, greatly reduce the requirement to rolling equipment, do not need employing complicated and the mill of costliness, only needing four conventional roller reversible hot-rolling mills can prepare thickness is 0.05mm ~ 0.3mm titanium alloy foil.
(2) the present invention adopts hot rolling technology when rolling, can avoid the major defect that in titanium alloy tradition cold-rolled process, the resistance of deformation that occurs is large, easy to crack, and greatly reduce manufacturing procedure.
(3) 2 ~ 4 times of the thickness of the folded Zha Bao steel plate of the present invention gross thickness that is stacked titanium alloy sheet, make steel plate and titanium plate deform in same pace technique be optimized, and coated convenience.
(4) thickness of the titanium alloy foil adopting the present invention to prepare is 0.05mm ~ 0.3mm, and thickness controllable precise, excellent surface quality, can realize large-scale industrial production.
Below in conjunction with embodiment, the present invention is described in further detail.
Detailed description of the invention
Embodiment 1
The preparation method of the titanium alloy foil of the present embodiment comprises the following steps:
Step one, will the cold rolling state TC4(Ti-6Al-4V of 400mm × 400mm × 1.5mm be of a size of) titanium alloy sheet is placed in electric furnace, is be incubated 15min under the condition of 650 DEG C to carry out surface oxidation treatment in temperature;
Step 2, the titanium alloy sheet in 2 steps one after surface oxidation treatment is neatly stacked in two sizes is between the steel plate of 415mm × 415mm × 6mm;
Pressing is carried out in two edgess of plate stacking titanium alloy sheet in step 2 by step 3, employing hydraulic tongs, then arc welder is adopted to carry out arc welding to pressing gap, reserve in steel plate either end the ventilation mouth that is about 70mm in electric arc welding process, finally the steel plate being reserved with ventilation mouth being put into vacuum argon arc welding case, is 1 × 10 in vacuum
-2under the condition of Pa, argon arc welding is carried out to ventilation mouth, obtain the ply rolling bag that thickness is 15mm; The thickness of described ply rolling bag is neatly stack the thickness of rear titanium alloy sheet and the thickness sum of two steel plates;
Step 4, the bag of ply rolling described in step 3 is placed in electric furnace heats, heating-up temperature is 900 DEG C, and the heat time is 36min;
Step 5, by step 4 heating after ply rolling bag send into repeat-rolling 13 passage in four roller reversible hot-rolling mills, obtain the rolled slab that thickness is 2.0mm; The pass deformation rate of described rolling is respectively: 15%, 15%, 15%, 15%, 15%, 15%, 15%, 15%, 15%, 15%, 12%, 12%, 12%, and the total deformation rate of described rolling is 87%;
Steel plate in rolled slab described in step 5 removes by step 6, employing plate shearing machine, the thickness recording the TC4 titanium alloy sheet after rolling is 0.22mm, then carry out pickling and surfacing process successively, obtaining thickness is 0.2mm, the TC4 titanium alloy foil of any surface finish.
Embodiment 2
The preparation method of the titanium alloy foil of the present embodiment comprises the following steps:
Step one, cold rolling state TB8(Ti-15Mo-3Al-2.7Nb-0.25Si, the β 21S of 400mm × 400mm × 0.5mm will be of a size of) titanium alloy sheet is placed in electric furnace, is be incubated 20min under the condition of 600 DEG C to carry out surface oxidation treatment in temperature;
Step 2, the titanium alloy sheet in 3 steps one after surface oxidation treatment is neatly stacked in two sizes is between the steel plate of 415mm × 415mm × 4mm;
Pressing is carried out in two edgess of plate stacking titanium alloy sheet in step 2 by step 3, employing hydraulic tongs, then arc welder is adopted to carry out arc welding to pressing gap, reserve in steel plate either end the ventilation mouth that is about 70mm in electric arc welding process, finally the steel plate being reserved with ventilation mouth being put into vacuum argon arc welding case, is 1 × 10 in vacuum
-2under the condition of Pa, argon arc welding is carried out to ventilation mouth, obtain the ply rolling bag that thickness is 9.5mm;
Step 4, the bag of ply rolling described in step 3 is placed in electric furnace heats, heating-up temperature is 920 DEG C, and the heat time is 30min;
Step 5, by step 4 heating after ply rolling bag send into reciprocal rolling 11 passage in four roller reversible hot-rolling mills, obtain the rolled slab that thickness is 1.8mm; The pass deformation rate of described rolling is respectively: 15%, 15%, 15%, 15%, 15%, 15%, 15%, 15%, 12%, 12%, 10%, and the total deformation rate of described rolling is 81%;
Steel plate in rolled slab described in step 5 removes by step 6, employing plate shearing machine, and the thickness recording the TB8 titanium alloy sheet after rolling is 0.11mm.Then carry out pickling and surfacing process successively, obtaining thickness is 0.1mm, the TB8 titanium alloy foil of any surface finish.
Embodiment 3
The preparation method of the titanium alloy foil of the present embodiment comprises the following steps:
Step one, will the cold rolling state TB5(Ti-15V-3Al-3Cr-3Sn of 350mm × 350mm × 0.8mm be of a size of) titanium alloy sheet is placed in electric furnace, is be incubated 15min under the condition of 650 DEG C to carry out surface oxidation treatment in temperature;
Step 2, the titanium alloy sheet in 3 steps one after surface oxidation treatment is neatly stacked in two sizes is between the steel plate of 365mm × 365mm × 5.5mm;
Pressing is carried out in two edgess of plate stacking titanium alloy sheet in step 2 by step 3, employing hydraulic tongs, then arc welder is adopted to carry out arc welding to pressing gap, reserve in steel plate either end the ventilation mouth that is about 60mm in electric arc welding process, finally the steel plate being reserved with ventilation mouth being put into vacuum argon arc welding case, is 1 × 10 in vacuum
-1under the condition of Pa, argon arc welding is carried out to ventilation mouth, obtain the ply rolling bag that thickness is 13.4mm;
Step 4, the bag of ply rolling described in step 3 is placed in electric furnace heats, heating-up temperature is 920 DEG C, and the heat time is 33min;
Step 5, by step 4 heating after ply rolling bag send into rolling in four roller reversible hot-rolling mills, reciprocal rolling 9 passage obtains the rolled slab that thickness is 3.3mm; The pass deformation rate of described rolling is respectively: 15%, 15%, 15%, 15%, 15%, 15%, 15%, 12%, 11.5%, and the total deformation rate of described rolling is 75%;
Steel plate in rolled slab described in step 5 removes by step 6, employing plate shearing machine, the thickness recording the TB5 titanium alloy sheet after rolling is 0.21mm, then carry out pickling and surfacing process successively, obtaining thickness is 0.2mm, the TB5 titanium alloy foil of any surface finish.
Embodiment 4
The preparation method of the titanium alloy foil of the present embodiment comprises the following steps:
Step one, will the cold rolling state TC4(Ti-6Al-4V of 300mm × 300mm × 0.5mm be of a size of) titanium alloy sheet is placed in electric furnace, is be incubated 18min under the condition of 630 DEG C to carry out surface oxidation treatment in temperature;
Step 2, the titanium alloy sheet in 4 steps one after surface oxidation treatment is neatly stacked in two sizes is between the steel plate of 320mm × 320mm × 4mm;
Pressing is carried out in two edgess of plate stacking titanium alloy sheet in step 2 by step 3, employing hydraulic tongs, then arc welder is adopted to carry out arc welding to pressing gap, reserve in steel plate either end the ventilation mouth that is about 60mm in electric arc welding process, finally the steel plate being reserved with ventilation mouth being put into vacuum argon arc welding case, is 1 × 10 in vacuum
-1under the condition of Pa, argon arc welding is carried out to ventilation mouth, obtain the ply rolling bag that thickness is 10mm;
Step 4, the bag of ply rolling described in step 3 is placed in electric furnace heats, heating-up temperature is 950 DEG C, and the heat time is 35min;
Step 5, by step 4 heating after ply rolling bag send into reciprocal rolling 14 passage in four roller reversible hot-rolling mills, obtain the rolled slab that thickness is 1.0mm; The pass deformation rate of described rolling is 15%, and the total deformation rate of described rolling is 90%;
Steel plate in rolled slab described in step 5 removes by step 6, employing plate shearing machine, the thickness recording the TC4 titanium alloy sheet after rolling is 0.07mm, then carry out successively washing, pickling and surfacing process, obtaining thickness is 0.05mm, the TC4 titanium alloy foil of any surface finish.
Embodiment 5
The preparation method of the titanium alloy foil of the present embodiment comprises the following steps:
Step one, cold rolling state TB8(Ti-15Mo-3Al-2.7Nb-0.25Si, the β 21S of 500mm × 500mm × 0.5mm will be of a size of) titanium alloy sheet is placed in electric furnace, is be incubated 15min under the condition of 650 DEG C to carry out surface oxidation treatment in temperature;
Step 2, the titanium alloy sheet in 2 steps one after surface oxidation treatment is neatly stacked in two sizes is between the steel plate of 520mm × 520mm × 4mm;
Pressing is carried out in two edgess of plate stacking titanium alloy sheet in step 2 by step 3, employing hydraulic tongs, then arc welder is adopted to carry out arc welding to pressing gap, reserve in steel plate either end the ventilation mouth that is about 80mm in electric arc welding process, finally the steel plate being reserved with ventilation mouth being put into vacuum argon arc welding case, is 1 × 10 in vacuum
-1under the condition of Pa, argon arc welding is carried out to ventilation mouth, obtain the ply rolling bag that thickness is 9mm;
Step 4, the bag of ply rolling described in step 3 is placed in electric furnace heats, heating-up temperature is 980 DEG C, and the heat time is 30min;
Step 5, by step 4 heating after ply rolling bag send into reciprocal rolling 8 passage in four roller reversible hot-rolling mills, obtain the rolled slab that thickness is 2.7mm; The pass deformation rate of described rolling is respectively: 15%, 15%, 15%, 15%, 15%, 12%, 12%, 12%, and the total deformation rate of described rolling is 70%;
Steel plate in rolled slab described in step 5 removes by step 6, employing plate shearing machine, the thickness recording the TB8 titanium alloy sheet after rolling is 0.19mm, then carry out pickling and surfacing process successively, obtain the titanium alloy foil that thickness is 0.15mm, any surface finish.
Embodiment 6
The preparation method of the titanium alloy foil of the present embodiment comprises the following steps:
Step one, will the cold rolling state TB5(Ti-15V-3Al-3Cr-3Sn of 500mm × 500mm × 2mm be of a size of) titanium alloy sheet is placed in electric furnace, is be incubated 20min under the condition of 600 DEG C to carry out surface oxidation treatment in temperature;
Step 2, the titanium alloy sheet in 2 steps one after surface oxidation treatment is neatly stacked in two sizes is between the steel plate of 520mm × 520mm × 8mm;
Pressing is carried out in two edgess of plate stacking titanium alloy sheet in step 2 by step 3, employing hydraulic tongs, then arc welder is adopted to carry out arc welding to pressing gap, reserve in steel plate either end the ventilation mouth that is about 80mm in electric arc welding process, finally the steel plate being reserved with ventilation mouth being put into vacuum argon arc welding case, is 1 × 10 in vacuum
-1under the condition of Pa, argon arc welding is carried out to ventilation mouth, obtain the ply rolling bag that thickness is 20mm;
Step 4, the bag of ply rolling described in step 3 is placed in electric furnace heats, heating-up temperature is 900 DEG C, and the heat time is 30min;
Step 5, by step 4 heating after ply rolling bag send into reciprocal rolling 12 passage in four roller reversible hot-rolling mills, obtain the rolled slab that thickness is 3mm; The pass deformation rate of described rolling is respectively: 15%, 15%, 15%, 15%, 15%, 15%, 15%, 15%, 15%, 14%, 14%, 12%, and the total deformation rate of described rolling is 85%;
Steel plate in rolled slab described in step 5 removes by step 6, employing plate shearing machine, the thickness recording the TB8 titanium alloy sheet after rolling is 0.33mm, then carry out pickling and surfacing process successively, obtain the titanium alloy foil that thickness is 0.3mm, any surface finish.
The above is only preferred embodiment of the present invention, not imposes any restrictions the present invention.Every above embodiment is done according to invention technical spirit any simple modification, change and equivalence change, all still belong in the protection domain of technical solution of the present invention.
Claims (3)
1. a preparation method for titanium alloy foil, is characterized in that, the method comprises the following steps:
Step one, being that the titanium alloy sheet of 0.5mm ~ 2.0mm is placed in electric furnace by thickness, is be incubated 15min ~ 20min under the condition of 600 DEG C ~ 650 DEG C to carry out surface oxidation treatment in temperature; Described titanium alloy sheet is TB8 titanium alloy sheet or TB5 titanium alloy sheet;
Step 2, the titanium alloy sheet in 2 ~ 4 steps one after surface oxidation treatment is neatly stacked between two steel plates, two described steel plates by completely coated for the titanium alloy sheet after neatly stacking, 2 ~ 4 times of the titanium alloy sheet gross thickness after the thickness of two described steel plates is and neatly stacks;
Pressing is carried out in two edgess of plate stacking titanium alloy sheet in step 2 by step 3, employing hydraulic tongs, then arc welder is adopted to carry out arc welding to pressing gap, in electric arc welding process, after pressing, the either end of steel plate reserves ventilation mouth, finally the steel plate being reserved with ventilation mouth being placed in vacuum argon arc welding case, is 1 × 10 in vacuum
-1~ 1 × 10
-2under the condition of Pa, argon arc welding is carried out to ventilation mouth, obtain ply rolling bag;
Step 4, the bag of ply rolling described in step 3 is placed in electric furnace heats, heating-up temperature is 900 DEG C ~ 980 DEG C, and heat time T meets: (D/2+20)≤T≤(D/2+30), and wherein D is the one-tenth-value thickness 1/10 of ply rolling bag, the unit of D is the unit of mm, T is min;
Step 5, by step 4 heating after ply rolling bag send into rolling in four roller reversible hot-rolling mills, obtain rolled slab; The pass deformation rate of described rolling is 10% ~ 15%, and the total deformation rate of described rolling is 70% ~ 90%;
In rolled slab described in step 5 two steel plate removes by step 6, employing plate shearing machine, then carrying out pickling processes and surfacing process successively by removing the rolled slab after steel plate, obtaining the titanium alloy foil that thickness is 0.05mm ~ 0.3mm.
2. the preparation method of a kind of titanium alloy foil according to claim 1, is characterized in that, titanium alloy sheet described in step one is the titanium alloy sheet of cold rolling state.
3. the preparation method of a kind of titanium alloy foil according to claim 1, is characterized in that, in step 2, two described steel plates are at all large than the titanium alloy sheet after neatly the stacking 15mm ~ 20mm of the size of length direction and width.
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| CN103464461B (en) * | 2013-09-17 | 2015-07-08 | 西北有色金属研究院 | Preparation method for TB8 titanium alloy foil |
| CN111471946B (en) * | 2020-04-21 | 2021-10-26 | 洛阳双瑞精铸钛业有限公司 | Preparation method of TB5 alloy plate |
| CN113578967B (en) * | 2021-06-27 | 2022-05-31 | 中国科学院金属研究所 | Preparation method of 550-650 ℃ high-temperature titanium alloy foil |
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| JPH06248404A (en) * | 1993-02-25 | 1994-09-06 | Nippon Steel Corp | Production of titanium sheet excellent in press formability |
| JPH1157810A (en) * | 1997-08-14 | 1999-03-02 | Nkk Corp | Production of titanium alloy sheet material |
| JP3446016B2 (en) * | 1999-07-27 | 2003-09-16 | Ｊｆｅスチール株式会社 | Pack rolling method |
| RU2381297C1 (en) * | 2008-06-09 | 2010-02-10 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Manufacturing method of ultralight gage sheets from high-strength titanium alloys |
| CN102107225A (en) * | 2010-12-20 | 2011-06-29 | 宝钛集团有限公司 | Ply-rolling pack for pack ply-rolling of titanium alloy sheet |
| CN102274851A (en) * | 2011-04-26 | 2011-12-14 | 宝钛集团有限公司 | Method for manufacturing titanium alloy sheet by cladding and pack rolling of steel plate |
| CN102489507A (en) * | 2011-12-14 | 2012-06-13 | 西部钛业有限责任公司 | Preparation method for titanium alloy wide sheet |
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