CN104190712A - Method for producing TA10 alloy rolls through hot continuous rolling mill - Google Patents
Method for producing TA10 alloy rolls through hot continuous rolling mill Download PDFInfo
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- CN104190712A CN104190712A CN201410431209.3A CN201410431209A CN104190712A CN 104190712 A CN104190712 A CN 104190712A CN 201410431209 A CN201410431209 A CN 201410431209A CN 104190712 A CN104190712 A CN 104190712A
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Abstract
The invention discloses a method for producing TA10 alloy rolls through a hot continuous rolling mill. The method includes the steps that a TA10 (containing Ti-0.3Mo-0.8Ni nominally) square billet produced through an electron beam cooling bed is placed in a heating furnace of the hot continuous rolling mill for heating after being milled, chamfered and ground; after the square billet is heated to be at the preset temperature, the processes such as high pressure water descaling, rough rolling, rewinding, head and tail removal, fine rolling, laminar cooling and winding are conducted, and then TA10 alloy rolls can be obtained. The cost of producing TA10 alloy rolls according to the method is low, the production period is short, the surface quality is high, and one-time yield can reach more than 99%.
Description
Technical field
The present invention relates to a kind of method of producing TA10 alloy volume with continuous hot-rolling mill, belonged to field of engineering technology.
Background technology
Ti-Pb alloy is current best a kind of corrosion resistant Ti alloy, has been widely used in the industrial departments such as metallurgy, aviation, petroleum refining, petrochemical industry, and has obtained remarkable result.But owing to containing rare precious metal palladium in Ti-Pd alloy, not only have any problem in source, and cost is also high, has greatly limited its application.TA10 (nominal component is Ti-0.3Mo-0.8Ni) is because of containing rare your element, good processability, and the corrosion resisting property in reductant and high-temperature chlorine compound is significantly improved than pure titanium, can partly replace Ti-Pd alloy.TA10 alloy has been considered to the best new type corrosion resistant alloy since Ti-Pd alloy, at some pure titaniums, may occur in the environment of crevice corrosion, and TA10 alloy will replace pure titanium and obtain application very widely.
The heat exchanger that existing market has the call to TA10 thin titanium board industry, but due to domestic relatively little to TA10 roll bending consumption, the production capacity of newly-built rolling titanium volume special production line is not enough, and now steel market is low, and the character of steel and titanium has many close parts.For this reason, utilize existing continuous hot-rolling mill to realize the production of TA10 alloy volume, can meet Vehicles Collected from Market demand.Because continuous hot-rolling mill has higher requirement to the flatness of blank, to the blank obtaining through flat-die forging, also need the defects such as pit to blank surface, projection to carry out machine cuts or reconditioning removal.In conventional blank procurement process, need to use flat-die forging process, in the middle of it, easily at blank two ends, occur in " tongue ", there is the defects such as hair check and oxidation in limit portion, carry out subsequent production, the operation such as must increase cutting, reconditioning, strip off the skin, not only increased production cost, also caused the huge waste of human and material resources, also make lumber recovery greatly decline simultaneously.
Adopt electron-beam cold bed furnace can directly produce the TA10 alloy preform of size conforms continuous hot-rolling mill requirement, only need after simple milling face, reconditioning operation, can enter rolling process.Avoided conventional method to produce still needing after ingot casting just can being rolled operation after the operation of series of complexes such as carrying out cogging forging, cutting, reconditioning and strip off the skin.In addition, electron-beam cold bed furnace has the effect of refining, purification, can produce the high-quality TA10 alloy blank being mingled with without high/low density, and blank indices is all than forging the good of base, for the secondary operations of follow-up roll bending is provided convenience.
By the retrieval to prior art document, about a kind of method of producing TA10 alloy volume with continuous hot-rolling mill, not yet find relevant report.
Summary of the invention
Technical problem to be solved by this invention is the deficiency for above-mentioned appearance, a kind of method of producing TA10 alloy volume with continuous hot-rolling mill is provided, the production cost that the method is produced TA10 alloy volume is lower, without purchasing the equipment of establishing new special rolling titanium, possess and have good rolling mill practice and production capacity, easy to operate in actual production, rolling volume face mass ratio is out with forging the effective of base, can effectively solve to adopt to forge base and roll and roll out existing problem and deficiency.
In order to achieve the above object, the technical solution used in the present invention is:
A method of producing TA10 alloy volume with continuous hot-rolling mill, the present invention is characterised in that, comprises the following steps:
(1) the TA10 alloy square billet of electron-beam cold bed furnace being produced is put in continuous hot-rolling mill heating furnace and is heated after milling face, chamfering, reconditioning, crop, and the heat time is 220～300min;
(2) the TA10 alloy square billet after heating is completed carries out de-scaling with water under high pressure, and the pressure of water under high pressure is 18～22MPa;
(3) the TA10 alloy square billet after high-pressure water descaling operation is carried out to N
1passage roughing, at N
1in-1 passage, high pressure descaling water is closed, open high pressure descaling water during in the end a time roughing, the slab after roughing is completed carries out de-scaling again;
(4) slab after roughing is completed carries out rewinding, in rewinding process, with flying shear, removes slab end to end;
(5) by the slab N after removing end to end
2passage finish rolling, adopts osculum high-power blower to purge volume face foreign matter between finishing mill;
(6) after finish rolling completes, volume face is carried out to thermometric, determine the current size that laminar flow is cooling;
(7) laminar flow is cooling complete after, to involving in row, batch, can obtain the TA10 alloy volume of dimension.
In step of the present invention (1), the specification of TA10 alloy square billet is 210mm * (1060～1390mm) * (7200～8400mm), and the specification after milling face is (190～208) mm * (1050～1380mm) * (7200～8300mm); Three sections of heating cycles for continuous hot-rolling mill heating furnace, wherein one section of heating-up temperature is: 940～960 ℃, two sections of heating-up temperatures are 910～920 ℃, three sections of heating-up temperatures are 730～760 ℃, wherein one section is first rolling section, and three sections is rear rolling section, and the angle of chamfering is 45 °.
N in step of the present invention (3)
1value be 5～7, N when finished product rollback request thickness is 6mm
1be 5, N when finished product rollback request thickness is 4.5mm
1be 6, N when finished product rollback request thickness is 3mm
1be 7.
N in step of the present invention (5)
2value be 6～7, N when finished product rollback request thickness is 6mm
2be 6, N when finished product rollback request thickness is 4.5mm
2be 6, N when finished product rollback request thickness is 3mm
2be 7.
After the middle finish rolling of step of the present invention (6) completes, the temperature of volume face is 550～650 ℃.
The present invention has the following advantages:
1, good product performance;
2, simple to operate, reappearance is strong;
3, the technological process of production shortens greatly;
4, with short production cycle, productivity ratio is high;
5, lumber recovery is high, can obtain obvious economic benefit.
In sum, the present invention is simple, easy to operate by the technique of the method for continuous hot-rolling mill production TA10 alloy volume, result of use is good, can guarantee in the situation of titanium volume surface quality, production procedure is shortened dramatically, improve lumber recovery, greatly reduce production costs, make product obtain the good market competitiveness.
The specific embodiment
With continuous hot-rolling mill, produce a method for TA10 alloy volume, the present invention is characterised in that,
Comprise the following steps:
(1) the TA10 alloy square billet of electron-beam cold bed furnace being produced is put in continuous hot-rolling mill heating furnace and is heated after milling face, chamfering, reconditioning, crop, and the heat time is 220～300min;
(2) the TA10 alloy square billet after heating is completed carries out de-scaling with water under high pressure, and the pressure of water under high pressure is 18～22MPa;
(3) the TA10 alloy square billet after high-pressure water descaling operation is carried out to N
1passage roughing, at N
1in-1 passage, high pressure descaling water is closed, open high pressure descaling water during in the end a time roughing, the slab after roughing is completed carries out de-scaling again;
(4) slab after roughing is completed carries out rewinding, in rewinding process, with flying shear, removes slab end to end;
(5) by the slab N after removing end to end
2passage finish rolling, adopts osculum high-power blower to purge volume face foreign matter between finishing mill;
(6) after finish rolling completes, volume face is carried out to thermometric, determine the current size that laminar flow is cooling;
(7) laminar flow is cooling complete after, to involving in row, batch, can obtain the TA10 alloy volume of dimension.
In step of the present invention (1), the specification of TA10 alloy square billet is 210mm * (1060～1390mm) * (7200～8400mm), and the specification after milling face is (190～208) mm * (1050～1380mm) * (7200～8300mm); Three sections of heating cycles for continuous hot-rolling mill heating furnace, wherein one section of heating-up temperature is: 940～960 ℃, two sections of heating-up temperatures are 910～920 ℃, three sections of heating-up temperatures are 730～760 ℃, wherein one section is first rolling section, and three sections is rear rolling section, and the angle of chamfering is 45 °.
N in step of the present invention (3)
1value be 5～7, N when finished product rollback request thickness is 6mm
1be 5, N when finished product rollback request thickness is 4.5mm
1be 6, N when finished product rollback request thickness is 3mm
1be 7.
N in step of the present invention (5)
2value be 6～7, N when finished product rollback request thickness is 6mm
2be 6, N when finished product rollback request thickness is 4.5mm
2be 6, N when finished product rollback request thickness is 3mm
2be 7.
After the middle finish rolling of step of the present invention (6) completes, the temperature of volume face is 550～650 ℃.
Embodiment 1
Target is produced the TA10 hot rolling titanium alloy volume of 6.0mm * 1050mm * Lmm, electron-beam cold bed furnace is produced to specification is: the TA10 alloy square billet of 210mm * 1060mm * 8200mm, the specification after milling face, 45 ° of chamferings, reconditioning, crop is 200mm * 1050mm * 8100mm.Then processing base is put in continuous hot-rolling mill heating furnace and heated, heat time is 230min, the water under high pressure that TA10 alloy square billet after having heated is 20MPa with pressure carries out de-scaling, TA10 alloy square billet after de-scaling is completed carries out 5 passage roughing, in front 4 passages, high pressure descaling water is closed, during in the end a time roughing, open high pressure descaling water, slab after roughing is completed carries out de-scaling again, slab after roughing is completed carries out rewinding, in rewinding process, with flying shear, remove slab end to end, by the slab 6 passage finish rolling after removing end to end, between finishing mill, adopt osculum high-power blower to purge volume face foreign matter, after finish rolling completes, volume face is carried out to thermometric, it is 570 ± 20 ℃ that temperature is controlled.Determine the current size that laminar flow is cooling, after laminar flow is cooling, to involving in row, batch, can obtain the TA10 alloy volume of dimension.
The rolling condition of table 1 rolling TA10 alloy volume
Embodiment 2
Target is produced the TA10 hot rolling titanium alloy volume of 4.5mm * 1250mm * Lmm, electron-beam cold bed furnace is produced to specification and be: the specification of the TA10 alloy square billet of 210mm * 1260mm * 8200mm after milling face, 45 ° of chamferings, reconditioning, crop is 200mm * 1250mm * 8100mm.Then processing base is put in continuous hot-rolling mill heating furnace and heated, heat time is 260min, the water under high pressure that TA10 alloy square billet after having heated is 20MPa with pressure carries out de-scaling, TA10 alloy preform after de-scaling is completed carries out 6 passage roughing, in front 5 passages, high pressure descaling water is closed, during in the end a time roughing, open high pressure descaling water, slab after roughing is completed carries out de-scaling again, slab after roughing is completed carries out rewinding, in rewinding process, with flying shear, remove slab end to end, by the slab 6 passage finish rolling after removing end to end, between finishing mill, adopt osculum high-power blower to purge volume face foreign matter, after finish rolling completes, volume face is carried out to thermometric, it is 600 ± 20 ℃ that temperature is controlled.Determine the current size that laminar flow is cooling, after laminar flow is cooling, to involving in row, batch, can obtain the TA10 alloy volume of dimension.
The rolling condition of table 2 rolling TA10 alloy volume
Embodiment 3
Target is produced the TA10 hot rolling titanium alloy volume of 3.0mm * 1380mm * Lmm, electron-beam cold bed furnace is produced to specification and be: the specification of the TA10 alloy preform of 210mm * 1390mm * 8200mm after milling face, 45 ° of chamferings, reconditioning, crop is 200mm * 13800mm * 8100mm.Then processing base is put in continuous hot-rolling mill heating furnace and heated, heat time is 300min, the water under high pressure that TA10 alloy square billet after having heated is 20MPa with pressure carries out de-scaling, TA10 alloy preform after de-scaling is completed carries out 7 passage roughing, in front 6 passages, high pressure descaling water is closed, during in the end a time roughing, open high pressure descaling water, slab after roughing is completed carries out de-scaling again, slab after roughing is completed carries out rewinding, in rewinding process, with flying shear, remove slab end to end, by the slab 7 passage finish rolling after removing end to end, between finishing mill, adopt osculum high-power blower to purge volume face foreign matter, after finish rolling completes, volume face is carried out to thermometric, it is 650 ± 20 ℃ that temperature is controlled.Determine the current size that laminar flow is cooling, after laminar flow is cooling, to involving in row, batch, can obtain the TA10 alloy volume of dimension.
The rolling condition of table 3 rolling TA10 alloy volume
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every according to the technology of the present invention essence to above embodiment simply revise, the variation of change and equivalent structure, all still belong in the protection domain of technical solution of the present invention.
Claims (5)
1. with continuous hot-rolling mill, produce a method for TA10 alloy volume, it is characterized in that, comprise the following steps:
(1) the TA10 alloy square billet of electron-beam cold bed furnace being produced is put in continuous hot-rolling mill heating furnace and is heated after milling face, chamfering, reconditioning, crop, and the heat time is 220～300min;
(2) the TA10 alloy square billet after heating is completed carries out de-scaling with water under high pressure, and the pressure of water under high pressure is 18～22MPa;
(3) the TA10 alloy square billet after high-pressure water descaling operation is carried out to N
1passage roughing, at N
1in-1 passage, high pressure descaling water is closed, open high pressure descaling water during in the end a time roughing, the slab after roughing is completed carries out de-scaling again;
(4) slab after roughing is completed carries out rewinding, in rewinding process, with flying shear, removes slab end to end;
(5) by the slab N after removing end to end
2passage finish rolling, adopts osculum high-power blower to purge volume face foreign matter between finishing mill;
(6) after finish rolling completes, volume face is carried out to thermometric, determine the current size that laminar flow is cooling;
(7) laminar flow is cooling complete after, to involving in row, batch, can obtain the TA10 alloy volume of dimension.
2. by a kind of method of producing TA10 alloy volume with continuous hot-rolling mill claimed in claim 1, it is characterized in that, in step (1), the specification of TA10 alloy square billet is 210mm * (1060～1390mm) * (7200～8400mm), and the specification after milling face is (190～208) mm * (1050～1380mm) * (7200～8300mm); Three sections of heating cycles for continuous hot-rolling mill heating furnace, wherein one section of heating-up temperature is: 940～960 ℃, two sections of heating-up temperatures are 910～920 ℃, three sections of heating-up temperatures are 730～760 ℃, wherein one section is first rolling section, and three sections is rear rolling section, and the angle of chamfering is 45 °.
3. by a kind of method of producing TA10 alloy volume with continuous hot-rolling mill claimed in claim 1, it is characterized in that N in step (3)
1value be 5～7, N when finished product rollback request thickness is 6mm
1be 5, N when finished product rollback request thickness is 4.5mm
1be 6, N when finished product rollback request thickness is 3mm
1be 7.
4. by a kind of method of producing TA10 alloy volume with continuous hot-rolling mill claimed in claim 1, it is characterized in that N in step (5)
2value be 6～7, N when finished product rollback request thickness is 6mm
2be 6, N when finished product rollback request thickness is 4.5mm
2be 6, N when finished product rollback request thickness is 3mm
2be 7.
5. by a kind of method of producing TA10 alloy volume with continuous hot-rolling mill claimed in claim 1, it is characterized in that, after the middle finish rolling of step (6) completes, the temperature of volume face is 550～650 ℃.
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Cited By (6)
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| CN105149348A (en) * | 2015-09-07 | 2015-12-16 | 云南钛业股份有限公司 | Method of producing TA10 alloy rolls through twenty-roller cold rolling unit |
| CN105149346A (en) * | 2015-09-07 | 2015-12-16 | 云南钛业股份有限公司 | Method of producing TA10 alloy wire rods through high-speed wire mill |
| CN105728459A (en) * | 2016-03-02 | 2016-07-06 | 湖南湘投金天钛金属有限公司 | Method for producing TA18 titanium alloy strip coil by means of conventional hot continuous rolling unit |
| CN107760859A (en) * | 2017-10-18 | 2018-03-06 | 云南钛业股份有限公司 | The pure titanium strand soaking zone temperature control method of common stepped heating stove heat |
| CN108838208A (en) * | 2018-04-23 | 2018-11-20 | 舞阳钢铁有限责任公司 | A kind of two fiery milling methods of wide cut TC4 titanium alloy blank |
| CN113000599A (en) * | 2020-12-30 | 2021-06-22 | 云南钛业股份有限公司 | Production method for efficiently rolling titanium alloy wire rod |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149348A (en) * | 2015-09-07 | 2015-12-16 | 云南钛业股份有限公司 | Method of producing TA10 alloy rolls through twenty-roller cold rolling unit |
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| CN105728459A (en) * | 2016-03-02 | 2016-07-06 | 湖南湘投金天钛金属有限公司 | Method for producing TA18 titanium alloy strip coil by means of conventional hot continuous rolling unit |
| CN107760859A (en) * | 2017-10-18 | 2018-03-06 | 云南钛业股份有限公司 | The pure titanium strand soaking zone temperature control method of common stepped heating stove heat |
| CN107760859B (en) * | 2017-10-18 | 2019-05-03 | 云南钛业股份有限公司 | The pure titanium slab soaking zone temperature control method of common stepped heating stove heating |
| CN108838208A (en) * | 2018-04-23 | 2018-11-20 | 舞阳钢铁有限责任公司 | A kind of two fiery milling methods of wide cut TC4 titanium alloy blank |
| CN113000599A (en) * | 2020-12-30 | 2021-06-22 | 云南钛业股份有限公司 | Production method for efficiently rolling titanium alloy wire rod |
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