CN106734197B - A kind of manufacturing method solving technical pure titanium plate cold rolling roll banding - Google Patents
A kind of manufacturing method solving technical pure titanium plate cold rolling roll banding Download PDFInfo
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- CN106734197B CN106734197B CN201611245969.0A CN201611245969A CN106734197B CN 106734197 B CN106734197 B CN 106734197B CN 201611245969 A CN201611245969 A CN 201611245969A CN 106734197 B CN106734197 B CN 106734197B
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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
- B21B1/30—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 in a non-continuous process
- B21B1/32—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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/34—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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/06—Thermomechanical rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/10—Compression, e.g. longitudinal compression
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Abstract
The invention discloses a kind of manufacturing methods for solving technical pure titanium plate cold rolling roll banding, comprising the following steps: slab → forging → blank heating → first time high pressure water dephosphorization → roughing system → second of high pressure water dephosphorization → rollgang reciprocating swing → finish rolling system → section cooling → post-processing.Object of the present invention is to solve the problems, such as to be easy roll banding in technical pure titanium plate cold-rolling process, and titanium plate surface quality is improved, extends roll working life, improves production efficiency, reduces production cost.The invention belongs to nonferrous materials manufacturing technology fields.
Description
Technical field
The invention belongs to nonferrous materials manufacturing technology field more particularly to a kind of solution technical pure titanium plate cold rolling roll bandings
Manufacturing method.
Background technique
Industrially pure titanium has excellent corrosion resistance, excellent mechanical performances and welding performance, can be used as important corrosion resistance structure material
Material, is widely used in chemical industry equipment, strand power generating equipment, desalination plant and naval vessels components etc., is that China greatly develops
One of titanium.
Since 21 century, China's titanium demand, output rapid growth, product consumption amount, output rank the world
One, and it is most widely used with plate in the consumption of all titaniums, account about 50% or more of titanium total flow.Plate yield
Growth rate be much higher than the increase of production rate of entire titanium processing, each application field domestic from now on will quickly increase titanium demand
Add, continues to keep double figures growing trend.
In the production of titanium plate material, the occupation rate of technical pure titanium plate is very big, accounts for about 90%.Titanium compared with other metals, Ti with
The adhesion of the interface Fe can be greater than each metal inside combine can, therefore when Fe, Ti intimate surface contact and when relative motion occurs, be broken
It will occur at Ti matrix deeper.Titanium and its alloy plastic deformation and machining when be easy to happen adherent phenomenon, mainly
It shows as being easy to be easy when viscous knife, die forging when cutting to be easy roll banding etc. when viscous grinding tool, rolling, it is easy that titanium has compared with other metals
The property of adhesion, usually all metals are under Frotteurism, always more or less generation adhesion, for rolling most of gold
For category, by the metal species for properly selecting lubricant with being in contact, adhesion is made to be reduced to minimum limit.But for titanium
For alloy, due to being easily adhered, prevent the effect of adhesion measure also rather limited above, roll banding shortens roll working life,
It causes plate surface of poor quality, causes the unnecessary waste of the energy, cause production efficiency low.
Summary of the invention
It is an object of the present invention to provide a kind of manufacturing methods for solving technical pure titanium plate cold rolling roll banding, solve in industrially pure titanium
It is easy roll banding problem in plate cold-rolling process, technical pure titanium plate is produced using the present invention program, improves titanium plate surface quality,
Roll working life is extended, production efficiency is improved, reduces production cost.
In order to realize that above-mentioned technical effect, technical solution provided by the present invention are such that a kind of solution industrially pure titanium
The manufacturing method of plate cold rolling roll banding, comprising the following steps: slab → forging → blank heating → first time high pressure water dephosphorization → thick
Roll → second high pressure water dephosphorization → rollgang reciprocating swing → finish rolling system → section cooling → post-processing.
It should be noted that the smart milling step specifically: enter mm finishing mill unit and rolls, start rolling temperature >=750 DEG C,
Rolling terminates temperature >=550 DEG C；Last 3 passage uses small percentage pass reduction, percentage pass reduction≤10%, and milling train exit thickness is
2~8mm, 550~650 DEG C of milling train outlet temperature.
It should be noted that milling train described in finish rolling system is broadband hot tandem rolling mill.
It should be noted that the blank heating step includes the following steps successively carried out in heating furnace:
Blank: being sent into the preheating section of heating furnace by preheating step, and the temperature of preheating section is 400~500 DEG C, preheating time 40
~60min；
Blank: being sent into the bringing-up section of heating furnace by heating stepses, and the temperature of bringing-up section is 1000~1050 DEG C, heating time
150~200min；
Blank: being sent into the soaking zone of heating furnace by soak step, and the temperature of soaking zone is 1020~1040 DEG C, heating time
60~90min；In soaking zone, the temperature for controlling the lower surface of blank is 10 DEG C higher than the temperature of upper surface；
Blank is exported from the outlet of heating furnace after soak step, the outlet temperature of heating furnace is 1000~1050 DEG C.
It should be noted that pressure used by the first time dephosphorization step, second of dephosphorization step be 9~
21MPa。
It should be noted that the thick milling step are as follows: carry out 3~7 passes to blank, obtain intermediate base.
It should be noted that the rollgang reciprocating swing step specifically: after carrying out second of dephosphorization to blank,
Place it in 90~150S of reciprocating swing on the rollgang between roughing mill and mm finishing mill unit.
It should be noted that the cooling rate of the section cooling step is 1~10 DEG C/s, target cooling temperature is
300-400℃。
It should be noted that the post-processing step are as follows: industrial hot rolling titanium volume is coiled into, quality testing is carried out, it is qualified
Volume is transported to cold rolling mill feeding, uncoiling, then threading carries out the rolling of 20 roller reversible cold-rolling mill groups, produces finished product with a thickness of 0.7
~4mm cold rolling broadband titanium plate.
It should be noted that the ingredient of titanium used in the slab operation are as follows: Fe is 0.01~0.10wt%, C
It is 0.01~0.10wt% for 0.01~0.05wt%, N < 0.008wt%, H < 0.008wt%, O, remaining is for Ti and unavoidably
Impurity.
Preferably, the ingredient of titanium used in slab operation are as follows: Fe is 0.012~0.095wt%, and C is
0.01~0.045wt%, N are 0.002~0.005wt%, and H is 0.001~0.004wt%, and O is 0.055~0.062wt%, P
For 0.012wt%, S 0.002%, remaining is Ti and inevitable impurity.
The present invention is designed by reasonable hot rolling technology, and a thin layer of secondary oxidation titanium skin is formed on titanium plate surface,
It is isolated between roll for cold rolling and titanium plate in cold-rolled process, prevents roll from contacting with the direct of plate fresh metal, to avoid
Or reduce roll banding accident and occur, while secondary oxidation titanium skin brittleness is higher, general completely broken in cold-rolled process, below
It is easily removed in pickling or skimming processes, improves the surface quality of strip.
Specific embodiment
Claims are described further With reference to embodiment, but are not constituted to any limit of the invention
System, any couple of present invention make the obtained technical solution of limited times modification and still fall within invention which is intended to be protected.
Embodiment 1
A kind of manufacturing method solving technical pure titanium plate cold rolling roll banding.The chemical component and its content of forging stock are that: Fe is
0.012wt%, C 0.045wt%, N 0.005wt%, H 0.002wt%, O 0.055wt%, P 0.012wt%, S
For 0.002wt%, remaining is Ti and inevitable impurity.Thickness 150mm industrially pure titanium forging stock is pushed into pusher and is added
Furnace is first preheated in preheating section, 450 DEG C of preheating temperature, time 50min, into bringing-up section, 1000 DEG C of heating temperature, is heated
Time 150min, 1020 DEG C of soaking section temperature, soaking time 60min, it is higher than upper surface that soaking pit fire box temperature controls lower surface
10 DEG C, furnace outlet temperature controls the laggard horizontal high voltage water dephosphorization of heating furnace out at 1010 DEG C, dephosphorization pressure 12MPa, into first
Milling train group carries out 5 passes, and workpiece thickness 28mm is again introduced into high pressure water dephosphorization, dephosphorization pressure 12MPa, after dephosphorization
Then reciprocating swing 92S on rollgang between roughing mill and mm finishing mill unit enters back into mm finishing mill unit rolling, start rolling temperature
780 DEG C, rolling terminates 580 DEG C of temperature, rolls last 3 passage and uses small percentage pass reduction, and percentage pass reduction is respectively 7.6%,
5.6%, 3.2%, milling train exit thickness is 3mm, cooling facility for laminar flow is entered after the completion of rolling, cooling rate is 8 DEG C/s, cooling
To 300 DEG C.Industrial hot rolling titanium volume is coiled into, quality testing is carried out, qualification, which is rolled up, is transported to cold rolling mill feeding, uncoiling, threading, then
9 passes are carried out in 20 roller reversible cold-rolling mill groups, produce finished product with a thickness of 1mm cold rolling broadband titanium plate.
Embodiment 2
A kind of manufacturing method solving technical pure titanium plate cold rolling roll banding.The chemical component and its content of forging stock are that: Fe is
0.095wt%, C 0.013wt%, N 0.002wt%, H 0.004wt%, O 0.062wt%, P 0.012wt%, S
For 0.002wt%, remaining is Ti and inevitable impurity.Thickness 150mm industrially pure titanium forging stock is pushed into pusher and is added
Furnace is first preheated in preheating section, 400 DEG C of preheating temperature, time 60min, into bringing-up section, 1050 DEG C of heating temperature, is heated
Time 150min, 1040 DEG C of soaking section temperature, soaking time 60min, it is higher than upper surface that soaking pit fire box temperature controls lower surface
10 DEG C, furnace outlet temperature controls the laggard horizontal high voltage water dephosphorization of heating furnace out at 1035 DEG C, dephosphorization pressure 18MPa, into first
Milling train group carries out 5 passes, and workpiece thickness 32mm is again introduced into high pressure water dephosphorization, dephosphorization pressure 12MPa, after dephosphorization
Then reciprocating swing 100S on rollgang between roughing mill and mm finishing mill unit enters back into mm finishing mill unit rolling, start rolling temperature
780 DEG C, rolling terminates 550 DEG C of temperature, rolls last 3 passage and uses small percentage pass reduction, and percentage pass reduction is respectively 8.5%,
6.5%, 2.3%, milling train exit thickness is 2.5mm, cooling facility for laminar flow is entered after the completion of rolling, cooling rate is 2 DEG C/s, cold
But to 300 DEG C.Industrial hot rolling titanium volume is coiled into, quality testing is carried out, qualification, which is rolled up, is transported to cold rolling mill feeding, uncoiling, threading, so
11 passes are carried out in 20 roller reversible cold-rolling mill groups afterwards, produce finished product with a thickness of 0.8mm cold rolling broadband titanium plate.
Embodiment 3
A kind of manufacturing method solving technical pure titanium plate cold rolling roll banding.The chemical component and its content of forging stock are that: Fe is
0.02wt%, C 0.010wt%, N 0.005wt%, H 0.001wt%, O 0.06wt%, P 0.012wt%, S are
0.002wt%, remaining is Ti and inevitable impurity.Thickness 150mm industrially pure titanium forging stock is pushed into pusher, furnace is added,
It is first preheated in preheating section, 500 DEG C of preheating temperature, time 40min, into bringing-up section, 1000 DEG C of heating temperature, heating time
200min, 1010 DEG C of soaking section temperature, soaking time 90min, soaking pit fire box temperature control lower surface is 10 DEG C higher than upper surface,
Furnace outlet temperature controls the laggard horizontal high voltage water dephosphorization of heating furnace out at 1000 DEG C, dephosphorization pressure 12MPa, into blooming mill
Group carries out 3 passes, between workpiece thickness 70mm, is again introduced into high pressure water dephosphorization, dephosphorization pressure 18MPa, after dephosphorization
Then reciprocating swing 150S on rollgang between roughing mill and mm finishing mill unit enters back into mm finishing mill unit rolling, start rolling temperature
750 DEG C, rolling terminates 550 DEG C of temperature, rolls last 3 passage and uses small percentage pass reduction, and percentage pass reduction is respectively 10%,
8.5%, 4.3%, milling train exit thickness is 8mm, cooling facility for laminar flow is entered after the completion of rolling, cooling rate is 1 DEG C/s, cooling
To 350 DEG C.Industrial hot rolling titanium volume is coiled into, quality testing is carried out, qualification, which is rolled up, is transported to cold rolling mill feeding, uncoiling, threading, then
11 passes are carried out in 20 roller reversible cold-rolling mill groups, produce finished product with a thickness of 4mm cold rolling broadband titanium plate.
Embodiment 4
A kind of manufacturing method solving technical pure titanium plate cold rolling roll banding.The chemical component and its content of forging stock are that: Fe is
0.04wt%, C 0.035wt%, N 0.005wt%, H 0.001wt%, O 0.06wt%, P 0.012wt%, S are
0.002wt%, remaining is Ti and inevitable impurity.Thickness 150mm industrially pure titanium forging stock is pushed into pusher, furnace is added,
It is first preheated in preheating section, 500 DEG C of preheating temperature, time 40min, into bringing-up section, 1000 DEG C of heating temperature, heating time
200min, 1010 DEG C of soaking section temperature, soaking time 90min, soaking pit fire box temperature control lower surface is 10 DEG C higher than upper surface,
Furnace outlet temperature controls the laggard horizontal high voltage water dephosphorization of heating furnace out at 1000 DEG C, dephosphorization pressure 12MPa, into blooming mill
Group carries out 7 passes, between workpiece thickness 22mm, is again introduced into high pressure water dephosphorization, dephosphorization pressure 12MPa, after dephosphorization
Then reciprocating swing 100S on rollgang between roughing mill and mm finishing mill unit enters back into mm finishing mill unit rolling, start rolling temperature
850 DEG C, rolling terminates 650 DEG C of temperature, rolls last 3 passage and uses small percentage pass reduction, and percentage pass reduction is respectively 6.5%,
4.5%, 1.3%, milling train exit thickness is 2mm, cooling facility for laminar flow is entered after the completion of rolling, cooling rate is 4 DEG C/s, cooling
To 350 DEG C.Industrial hot rolling titanium volume is coiled into, quality testing is carried out, qualification, which is rolled up, is transported to cold rolling mill feeding, uncoiling, threading, then
11 passes are carried out in 20 roller reversible cold-rolling mill groups, produce finished product with a thickness of 1.2mm cold rolling broadband titanium plate.
Above-described is only presently preferred embodiments of the present invention, all made within the scope of the spirit and principles in the present invention
What modifications, equivalent substitutions and improvements etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of manufacturing method for solving technical pure titanium plate cold rolling roll banding, which comprises the following steps: slab → forging
→ blank heating → first time high pressure water dephosphorization → roughing system → second of high pressure water dephosphorization → rollgang reciprocating swing → essence
Rolling → section cooling → post-processing；The smart milling step specifically: enter mm finishing mill unit and rolls, start rolling temperature >=750
DEG C, rolling terminates temperature >=550 DEG C；Last 3 passage uses small percentage pass reduction, percentage pass reduction≤10%, milling train outlet thickness
Spending is 2~8mm, 550~650 DEG C of milling train outlet temperature；The blank heating step includes successively carrying out in heating furnace
Following steps:
Blank: being sent into the preheating section of heating furnace by preheating step, and the temperature of preheating section is 400~500 DEG C, and preheating time 40~
60min；
Blank: being sent into the bringing-up section of heating furnace by heating stepses, and the temperature of bringing-up section is 1000~1050 DEG C, heating time 150
~200min；
Blank: being sent into the soaking zone of heating furnace by soak step, and the temperature of soaking zone is 1020~1040 DEG C, and heating time 60~
90min；In soaking zone, the temperature for controlling the lower surface of blank is 10 DEG C higher than the temperature of upper surface；
Blank is exported from the outlet of heating furnace after soak step, the outlet temperature of heating furnace is 1000~1050 DEG C.
2. the manufacturing method according to claim 1 for solving technical pure titanium plate cold rolling roll banding, which is characterized in that finish rolling system is rolled
Machine is broadband hot tandem rolling mill.
3. the manufacturing method according to claim 1 for solving technical pure titanium plate cold rolling roll banding, which is characterized in that described the
Pressure used by high pressure water dephosphorization step, second of high pressure water dephosphorization step is 9~21MPa.
4. the manufacturing method according to claim 1 for solving technical pure titanium plate cold rolling roll banding, which is characterized in that described is thick
Milling step are as follows: 3~7 passes are carried out to blank, obtain intermediate base.
5. the manufacturing method according to claim 1 for solving technical pure titanium plate cold rolling roll banding, which is characterized in that described is defeated
Send roller-way reciprocating swing step specifically: after carrying out second of high pressure water dephosphorization to blank, place it in roughing mill and finishing mill
90~150S of reciprocating swing on rollgang between group.
6. the manufacturing method according to claim 1 for solving technical pure titanium plate cold rolling roll banding, which is characterized in that the layer
The cooling rate for flowing cooling step is 1~10 DEG C/s, and target cooling temperature is 300-400 DEG C.
7. the manufacturing method according to claim 1 for solving technical pure titanium plate cold rolling roll banding, which is characterized in that after described
Processing step are as follows: industrial hot rolling titanium volume is coiled into, quality testing is carried out, qualification, which is rolled up, is transported to cold rolling mill feeding, uncoiling, threading,
Then the rolling of 20 roller reversible cold-rolling mill groups is carried out, produces finished product with a thickness of 0.7~4mm cold rolling broadband titanium plate.
8. the manufacturing method according to claim 1 for solving technical pure titanium plate cold rolling roll banding, which is characterized in that the casting
The ingredient of titanium used in base operation are as follows: Fe is 0.01~0.10wt%, and C is 0.01~0.05wt%, N < 0.008wt%, H
< 0.008wt%, O are 0.01~0.10wt%, remaining is Ti and inevitable impurity.
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| CN107747074B (en) * | 2017-10-14 | 2019-11-29 | 龙南新晶钛业有限公司 | A kind of preparation method of auto parts and components titanium alloy material |
| CN108950298B (en) * | 2018-06-06 | 2020-02-04 | 湖北第二师范学院 | Hydrogen-brittleness-resistant titanium alloy for biomedical implantation and production method thereof |
| CN111020293B (en) * | 2019-12-30 | 2022-08-16 | 宝鸡鑫诺新金属材料有限公司 | High-performance TA1 rod wire material and preparation method thereof |
| CN114192578B (en) * | 2021-12-10 | 2024-04-26 | 武安市裕华钢铁有限公司 | High-efficiency release process and equipment for strip steel rolling efficiency |
| CN115889454B (en) * | 2022-05-09 | 2024-01-30 | 湖南湘投金天钛金属股份有限公司 | Pure nickel hot rolled coil and preparation method thereof |
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| KR100236162B1 (en) * | 1995-12-05 | 1999-12-15 | 이구택 | Method for manufacturing hot rolled sheets |
| JP5217509B2 (en) * | 2007-03-05 | 2013-06-19 | Ｊｆｅスチール株式会社 | Manufacturing method and equipment for thick steel plate |
| CN101412038B (en) * | 2008-08-08 | 2010-07-28 | 湖南湘投金天钛金属有限公司 | Method for producing metallic titanium plate using medium-wide strip hot rolling machine set |
| CN101628297A (en) * | 2009-08-11 | 2010-01-20 | 武钢集团昆明钢铁股份有限公司 | Reversible hot-rolling process of titanium plate coil |
| CN102581039A (en) * | 2011-01-12 | 2012-07-18 | 宝山钢铁股份有限公司 | Method for rolling pure titanium strip |
| CN103286128B (en) * | 2013-05-30 | 2015-05-20 | 山西太钢不锈钢股份有限公司 | Super duplex stainless steel S32750 medium plate rolling process |
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Address after: Tianhe District Guangzhou City, Guangdong province 510635 Longkou West Road No. 576 Patentee after: Guangdong Normal University of Technology Address before: Tianhe District Guangzhou City, Guangdong province 510635 Longkou West Road No. 576 Patentee before: Guangdong Technical Normal College |