CN102389896B - Processing method of titanium and titanium alloy wide thin plate - Google Patents
Processing method of titanium and titanium alloy wide thin plate Download PDFInfo
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- CN102389896B CN102389896B CN 201110303221 CN201110303221A CN102389896B CN 102389896 B CN102389896 B CN 102389896B CN 201110303221 CN201110303221 CN 201110303221 CN 201110303221 A CN201110303221 A CN 201110303221A CN 102389896 B CN102389896 B CN 102389896B
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Abstract
The invention discloses a processing method of titanium and titanium alloy wide thin plates. The method comprises the following steps of: rolling a titanium plate blank from which a surface oxide skin is removed or a titanium alloy plate blank from which a surface oxide skin is removed by using a 1,780mm six-roller reversing cold mill, wherein the titanium plate blank or the titanium alloy plate blank has the thickness of 1-8mm and the width of 1,000-1,560mm; then sequentially carrying out deoiling treatment, annealing treatment, leveling treatment, mechanical processing and acid-washing treatment on the rolled plate blank to obtain the titanium wide thin plate and the titanium alloy wide thin plate with the thickness of 0.4-3.5mm and the width of 1,000-1,560mm. The method is simple and easy to operate without special equipment, easy to realize industrial production. As the titanium and the titanium alloy wide thin plates with the thickness of 0.4-3.5mm and the width of 1,000-1,560mm are processed by using the method, the blankness of the current product is filled.
Description
Technical field
The invention belongs to technical field of board processing, be specifically related to a kind of processing method of titanium or titanium alloy wide sheet.
Background technology
Along with the development of the industrial technologies such as Aeronautics and Astronautics and boats and ships, to the titanium or titanium alloy wide sheet require increasing.Domestic titanium or titanium alloy lamella thickness commonly used is 0.4mm～3.5mm at present, and width is less than 1000mm.(width is that the production of 1000mm～1560mm) is inapplicable to existing titanium or titanium alloy thin plate processing method to wide sheet.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, and it is 0.4mm～3.5mm that a kind of thickness is provided, and width is the processing method of the titanium or titanium alloy wide sheet of 1000mm～1560mm.Adopt the titanium or titanium alloy wide sheet surface quality of the method processing good.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of processing method of titanium or titanium alloy wide sheet, it is characterized in that, and the method comprises the following steps:
Step 1, employing 1780mm six roller reversible cold-rolling mills are 1mm～8mm to thickness, width is that the slab of 1000mm～1560mm is rolled, rolling before according to formula: the roll shifting amount=± (1560mm-width of plate slab)/2, the roll shifting amount of milling train central roll is set, and the pass deformation rate of controlling slab in the operation of rolling is not more than 10%; Described slab is the titanium alloy slab after removing the titanium slab after surface scale or removing surface scale;
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 0.4mm～3.5mm, and width is titanium wide sheet or the titanium alloy wide sheet of 1000mm～1560mm.
Described in above-mentioned steps one in the operation of rolling total deformation rate of titanium slab be not more than 60%.
Described in above-mentioned steps one in the operation of rolling total deformation rate of titanium alloy slab be not more than 30%.
Described in above-mentioned steps one in the operation of rolling pass deformation rate of titanium alloy slab be not more than 8%.
Described in above-mentioned steps one, rolling speed is 20m/min～30m/min.
Pass through the automatic deviation rectifying function of 1780mm six roller reversable cold-rolling machines described in above-mentioned steps one in the operation of rolling and eliminate camber, be specially: when the camber of the every 1mm/m of appearance of fore side, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully.
Wave and limit wave during described in above-mentioned steps one, in the operation of rolling, the positive and negative bending roller force of employing is eliminated, concrete grammar is: when unrestrained in occurring, the every increase of angularity 1mm/m reduces 2 tons～5 tons with bending roller force; When the limit wave occurring, the every increase of angularity 1mm/m increases 2 tons～5 tons with bending roller force.
Adopting hydraulic AGC system to carry out thickness of slab described in above-mentioned steps one in the operation of rolling accurately controls.
The present invention compared with prior art has the following advantages:
1, method of the present invention is simple, and processing ease is easily realized suitability for industrialized production.
2, adopting method of the present invention can process thickness is 0.4mm～3.5mm, and width is the titanium or titanium alloy wide sheet of 1000mm～1560mm, has filled up the blank of existing product, also can be used for the processing of existing size titanium or titanium alloy thin plate.
3, the present invention's definite intermediate roll shifting amount wide according to plate, to overcome " 1/4 wave " in traditional template control, use positive and negative bending roller force to carry out the improvement of middle wave and limit wave, and adjust draught pressure by the automatic deviation rectifying function of 1780mm six roller reversable cold-rolling machines, eliminate the camber phenomenon, in addition, the present invention adopts hydraulic AGC system accurately to control thickness of slab, make titanium or titanium alloy plate thickness tolerance and with the poor higher level that reaches of plate, finally obtain the good titanium or titanium alloy wide sheet of surface quality.
Below by embodiment, technical scheme of the present invention is described in further detail.
The specific embodiment
Embodiment 1
Step 1, employing 1780mm six roller reversible cold-rolling mills are 8mm to thickness, width is 1000mm, length is that the TA1 slab after the removal surface scale of 2000mm is rolled, rolling before according to formula: the roll shifting amount=± (1560mm-width of plate slab)/2, the roll shifting amount that the milling train central roll is set is ± 280mm, the pass deformation rate of controlling slab in the operation of rolling is not more than 10%, and rolling speed is 30m/min, and adopts hydraulic AGC system to carry out thickness of slab and accurately control; The camber of 1mm/m occurs when fore side is every, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully; When unrestrained in occurring, the every increase of angularity 1mm/m reduces 2 tons～5 tons with bending roller force; When the limit wave occurring, the every increase of angularity 1mm/m increases 2 tons～5 tons with bending roller force;
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 5mm, and width is 1000mm, and length is the titanium wide sheet of 3650mm.
The rolling technological parameter of the present embodiment is as shown in table 1.
Table 1 rolling technological parameter table
Embodiment 2
Step 1, employing 1780mm six roller reversible cold-rolling mills are rolled the TA1 wide sheet of embodiment 1 processing, rolling before according to formula: the roll shifting amount=± (1560mm-width of plate slab)/2, the roll shifting amount that the milling train central roll is set is ± 280mm, the pass deformation rate of controlling slab in the operation of rolling is not more than 10%, rolling speed is 30m/min, and adopts hydraulic AGC system to carry out thickness of slab and accurately control; The camber of 1mm/m occurs when fore side is every, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully; When unrestrained in occurring, the every increase of angularity 1mm/m reduces 2 tons～5 tons with bending roller force; When the limit wave occurring, the every increase of angularity 1mm/m increases 2 tons～5 tons with bending roller force;
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 3mm, and width is 1500mm, and length is the titanium wide sheet of 5000mm.
The rolling technological parameter of the present embodiment is as shown in table 2.
Table 2 rolling technological parameter table
Embodiment 3
Step 1, employing 1780mm six roller reversible cold-rolling mills are 2mm to thickness, width is 1350mm, length is that the TA2 slab after the removal surface scale of 1500mm is rolled, rolling before according to formula: the roll shifting amount=± (1560mm-width of plate slab)/2, the roll shifting amount that the milling train central roll is set is ± 105mm, the pass deformation rate of controlling slab in the operation of rolling is not more than 10%, and rolling speed is 20m/min, and adopts hydraulic AGC system to carry out thickness of slab and accurately control; The camber of 1mm/m occurs when fore side is every, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully; When unrestrained in occurring, the every increase of angularity 1mm/m reduces 2 tons～5 tons with bending roller force; When the limit wave occurring, the every increase of angularity 1mm/m increases 2 tons～5 tons with bending roller force;
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 1mm, and width is 1350mm, and length is the titanium wide sheet of 2438mm.
The rolling technological parameter of the present embodiment is as shown in table 3.
Table 3 rolling technological parameter table
Embodiment 4
Step 1, employing 1780mm six roller reversible cold-rolling mills are rolled the TA2 wide sheet of embodiment 3 processing, rolling before according to formula: the roll shifting amount=± (1560mm-width of plate slab)/2, the roll shifting amount that the milling train central roll is set is ± 105mm, the pass deformation rate of controlling slab in the operation of rolling is not more than 10%, rolling speed is 25m/min, and adopts hydraulic AGC system to carry out thickness of slab and accurately control; The camber of 1mm/m occurs when fore side is every, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully; When unrestrained in occurring, the every increase of angularity 1mm/m reduces 2 tons～5 tons with bending roller force; When the limit wave occurring, the every increase of angularity 1mm/m increases 2 tons～5 tons with bending roller force;
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 0.4mm, and width is 1560mm, and length is the titanium wide sheet of 3000mm.
The rolling technological parameter of the present embodiment is as shown in table 4.
Table 4 rolling technological parameter table
Embodiment 5
Step 1, employing 1780mm six roller reversible cold-rolling mills are 5mm to thickness, width is 1500mm, length is that the TC4 slab after the removal surface scale of 3650mm is rolled, rolling before according to formula: the roll shifting amount=± (1560mm-width of plate slab)/2, the roll shifting amount that the milling train central roll is set is ± 30mm, the pass deformation rate of controlling slab in the operation of rolling is not more than 8%, and rolling speed is 25m/min, and adopts hydraulic AGC system to carry out thickness of slab and accurately control; The camber of 1mm/m occurs when fore side is every, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully; When unrestrained in occurring in the operation of rolling, the every increase of angularity 1mm/m reduces 2 tons～5 tons of bending roller forces; When occurring the limit wave in the operation of rolling, the every increase of angularity 1mm/m increases 2 tons～5 tons of bending roller forces;
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 3.5mm, and width is 1500mm, and length is the titanium alloy wide sheet of 4000mm.
The rolling technological parameter of the present embodiment is as shown in table 5.
Table 5 rolling technological parameter table
Embodiment 6
Step 1, employing 1780mm six roller reversible cold-rolling mills are 2.6mm to thickness, width is 1560mm, length is that the TC4 slab after the removal surface scale of 2400mm is rolled, rolling before according to formula: the roll shifting amount=± (1560mm-width of plate slab)/2, the roll shifting amount that the milling train central roll is set is ± 0mm, the pass deformation rate of controlling slab in the operation of rolling is not more than 8%, and rolling speed is 20m/min, and adopts hydraulic AGC system to carry out thickness of slab and accurately control; The camber of 1mm/m occurs when fore side is every, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully; When unrestrained in occurring in the operation of rolling, the every increase of angularity 1mm/m reduces 2 tons～5 tons of bending roller forces; When occurring the limit wave in the operation of rolling, the every increase of angularity 1mm/m increases 2 tons～5 tons of bending roller forces.
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 2mm, and width is 1560mm, and length is the titanium alloy wide sheet of 3000mm.
The rolling technological parameter of the present embodiment is as shown in table 6.
Table 6 rolling technological parameter table
Embodiment 7
Step 1, employing 1780mm six roller reversible cold-rolling mills are rolled the TC4 wide sheet of embodiment 6 processing, rolling before according to formula: the roll shifting amount=± (1560mm-width of plate slab)/2, the roll shifting amount that the milling train central roll is set is ± 0mm, the pass deformation rate of controlling slab in the operation of rolling is not more than 8%, rolling speed is 30m/min, and adopts hydraulic AGC system to carry out thickness of slab and accurately control; The camber of 1mm/m occurs when fore side is every, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully; When unrestrained in occurring in the operation of rolling, the every increase of angularity 1mm/m reduces 2 tons～5 tons of bending roller forces; When occurring the limit wave in the operation of rolling, the every increase of angularity 1mm/m increases 2 tons～5 tons of bending roller forces.
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 1.5mm, and width is 1560mm, and length is the titanium alloy wide sheet of 6200mm.
The rolling technological parameter of the present embodiment is as shown in table 7.
Table 7 rolling technological parameter table
Embodiment 8
Step 1, employing 1780mm six roller reversible cold-rolling mills are 1.0mm to thickness, width is 1250mm, length is that the TC2 slab after the removal surface scale of 2400mm is rolled, rolling before according to formula: the roll shifting amount=± (1560mm-width of plate slab)/2, the roll shifting amount that the milling train central roll is set is ± 155mm, the pass deformation rate of controlling slab in the operation of rolling is not more than 8%, and rolling speed is 30m/min, and adopts hydraulic AGC system to carry out thickness of slab and accurately control; The camber of 1mm/m occurs when fore side is every, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully; When unrestrained in occurring in the operation of rolling, the every increase of angularity 1mm/m reduces 2 tons～5 tons of bending roller forces; When occurring the limit wave in the operation of rolling, the every increase of angularity 1mm/m increases 2 tons～5 tons of bending roller forces.
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 0.7mm, and width is 1560mm, and length is the titanium alloy wide sheet of 3000mm.
The rolling technological parameter of the present embodiment is as shown in table 8.
Table 8 rolling technological parameter table
The above; it is only preferred embodiment of the present invention; be not that the present invention is done any restriction, every any simple modification, change and equivalent structure of above embodiment being done according to the invention technical spirit changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (7)
1. the processing method of a titanium or titanium alloy wide sheet, is characterized in that, the method comprises the following steps:
Step 1, employing 1780mm six roller reversible cold-rolling mills are 1mm～8mm to thickness, width is that the slab of 1000mm～1560mm is rolled, rolling before according to formula: roll shifting amount=(1560-width of plate slab)/2, the roll shifting amount of milling train central roll is set, and the pass deformation rate of controlling slab in the operation of rolling is not more than 10%; Described slab is the titanium alloy slab after removing the titanium slab after surface scale or removing surface scale;
Step 2, the slab after rolling in step 1 is carried out oil removal treatment, annealing in process, smoothing processing, machining and pickling processes successively, obtaining thickness is 0.4mm～3.5mm, and width is titanium wide sheet or the titanium alloy wide sheet of 1000mm～1560mm.
2. the processing method of a kind of titanium or titanium alloy wide sheet according to claim 1, is characterized in that, described in step 1 in the operation of rolling total deformation rate of titanium slab be not more than 60%.
3. the processing method of a kind of titanium or titanium alloy wide sheet according to claim 1, is characterized in that, described in step 1 in the operation of rolling pass deformation rate of titanium alloy slab be not more than 8%.
4. the processing method of a kind of titanium or titanium alloy wide sheet according to claim 1, is characterized in that, described in step 1, rolling speed is 20m/min～30m/min.
5. the processing method of a kind of titanium or titanium alloy wide sheet according to claim 1, it is characterized in that, pass through the automatic deviation rectifying function of 1780mm six roller reversable cold-rolling machines described in step 1 in the operation of rolling and eliminate camber, be specially: when the camber of the every 1mm/m of appearance of fore side, the draught pressure of fore side is increased 5 tons～10 tons, the draught pressure of recovery operation side when the camber phenomenon is eliminated fully; The camber of 1mm/m occurs when transmission side is every, the draught pressure of transmission side is increased 5 tons～10 tons, recover the draught pressure of transmission side when the camber phenomenon is eliminated fully.
6. the processing method of a kind of titanium or titanium alloy wide sheet according to claim 1, it is characterized in that, adopt wave and limit wave in positive and negative bending roller force elimination described in step 1 in the operation of rolling, concrete grammar is: when unrestrained in occurring, the every increase of angularity 1mm/m reduces 2 tons～5 tons with bending roller force; When the limit wave occurring, the every increase of angularity 1mm/m increases 2 tons～5 tons with bending roller force.
7. the processing method of a kind of titanium or titanium alloy wide sheet according to claim 1, is characterized in that, adopts hydraulic AGC system to carry out thickness of slab described in step 1 in the operation of rolling and accurately control.
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| CN102814323B (en) * | 2012-08-26 | 2014-07-09 | 西部钛业有限责任公司 | Processing method for rolling broad zirconium plate |
| CN102909236A (en) * | 2012-11-14 | 2013-02-06 | 西部钛业有限责任公司 | Preparing method of wide-width pure titanium roll |
| CN104439981B (en) * | 2014-12-11 | 2017-05-10 | 西部钛业有限责任公司 | Manufacturing method of TA6 titanium alloy large-width thin plate |
| CN104525567B (en) * | 2014-12-11 | 2016-05-11 | 西部钛业有限责任公司 | A kind of milling method of TA7 titanium alloy plate |
| CN106734318B (en) * | 2016-12-09 | 2018-10-16 | 西部钛业有限责任公司 | A kind of Ti2The processing method of AlNb alloy wide sheets |
| CN107052048A (en) * | 2017-03-22 | 2017-08-18 | 舞阳钢铁有限责任公司 | A kind of hot rolling production method of ultra-wide titanium plate |
| CN108098268A (en) * | 2017-12-18 | 2018-06-01 | 西安赛特思迈钛业有限公司 | A kind of processing method of high dimensional accuracy medical titanium alloy plate |
| CN109590330A (en) * | 2018-12-19 | 2019-04-09 | 宝钛集团有限公司 | A kind of milling method of TC4ELI titanium alloy wide-width thick |
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| JP2000355781A (en) * | 1998-05-06 | 2000-12-26 | Kobe Steel Ltd | Production of titanium sheet or titanium alloy sheet having beautiful surface |
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