CN106435423A - Continuous heating annealing method for cold-rolled titanium roll - Google Patents
Continuous heating annealing method for cold-rolled titanium roll Download PDFInfo
- Publication number
- CN106435423A CN106435423A CN201610993315.XA CN201610993315A CN106435423A CN 106435423 A CN106435423 A CN 106435423A CN 201610993315 A CN201610993315 A CN 201610993315A CN 106435423 A CN106435423 A CN 106435423A
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- annealing
- cold
- rolled titanium
- roll
- cold rolled
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- 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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
Abstract
The invention belongs to the technical field of industrial pure titanium production, particularly relates to a continuous heating annealing method for a cold-rolled titanium roll, and provides the continuous heating annealing method for the cold-rolled titanium roll in order to solve the problems that when the cold-rolled titanium roll is annealed by adopting a bell type annealing furnace at present, the production efficiency is low, and continuous production cannot be achieved. The method comprises the steps that degreasing drying is conducted on the cold-rolled titanium roll, argon is continuously introduced into a muffle furnace bright annealing furnace before annealing until air in the muffle furnace bright annealing furnace is completely exhausted, and then the cold-rolled titanium roll is annealed with the muffle furnace bright annealing furnace. According to the method, the problems that when the cold-rolled titanium roll is produced by the bell type annealing furnace, the efficiency and the energy utilization rate are low, and continuous production cannot be achieved are solved, novel application of a continuous annealing production line of the muffle furnace bright annealing furnace is provided, therefore, the production equipment not only can be applied to stainless steel annealing, but also can be applied to cold-rolled titanium roll annealing, the equipment utilization rate is increased, and the production cost is reduced.
Description
Technical field
The invention belongs to industrially pure titanium production technical field and in particular to a kind of cold rolled titanium roll laser heating annealing side
Method.
Background technology
Industrially pure titanium has high corrosion-resistant as one kind, high intensity, low-density material are widely used in petrochemical industry,
The fields such as desalinization, military equipment, compared with traditional ferrous materials, it is different that industrially pure titanium also shows homoatomic in heating process
Structure phenomenon, below 882 DEG C, industrially pure titanium is α～Ti structure of close-packed hexagonal structure, and when temperature is more than 882 DEG C, it will be sent out
Raw phase transformation becomes body-centred cubic β～Ti；Industrially pure titanium at high temperature be very easy to the element such as O, N, H formed solid solution so that
The mechanical property of material reduces, research find titanium start when 200 DEG C to absorb O, 400 DEG C when start strong absorption H, 600 DEG C
When start absorb N.Due to this characteristic of titanium, it is being carried out in heating process, defat, dried will be carried out to it, preventing
The polluters such as fat, water form oxide surface layer with titanium surface after being decomposed into H, N, O in high temperature.
Industrially pure titanium after cold and hot working, because in the course of processing there is strong plastic deformation, original lattice in material
It is distorted formation distortion of lattice, crystal grain presents elongated threadiness after processing, industrially pure titanium after to plastic deformation
When being heated to uniform temperature, it will recrystallize, the crystal grain being originally elongated forming core growing up so that material grains are thin again
Change, reach the effect improving mechanical property, therefore industrially often recrystallization annealing is carried out to the titanium volume after cold rolling or hot rolling.
The industrial at present mode that industrial pure titanium roll is carried out with recrystallization annealing is mainly carried out using bell type annealing furnace, its master
The mode is wanted to be：The industrial pure titanium roll that need are annealed is positioned in bell type annealing furnace after ungrease treatment, then passes to noble gases
Air in displacement stove, starts to carry out heating up by certain rate of heat addition, isothermal holding after air is replaced completely.
Because when bell type annealing furnace presence intensification is slow, entire volume is annealed in stove, soaking time length, annealing complete
Also the problems such as just can come out of the stove after needing afterwards to cool down for a long time is so that existing give birth to by the way of bell furnace is annealed to cold rolled titanium roll
Produce efficiency low it is impossible to carry out consecutive production.
Content of the invention
The technical problem to be solved in the present invention is：Give birth to when prior art is annealed to cold rolled titanium roll using bell type annealing furnace
Product efficiency is low, problem that is being unable to consecutive production.
The present invention solve technical problem technical scheme be：A kind of method of cold rolled titanium roll laser heating annealing is provided, should
Method comprises the following steps：
A, the degreaser drying of cold rolled titanium roll
B, argon purging
Before annealing, in Muffle furnace bright annealing furnace, continuously it is passed through argon, until by air in Muffle furnace bright annealing furnace
Drain；
C, cold rolling coil annealing
Muffle furnace bright annealing furnace is warming up to 500～730 DEG C, after each area of body of heater rises to design temperature, uncoiling is passed through
Cold rolled titanium roll, according to body of heater length X and cold rolled titanium roll minimum recrystallization temperature retention time T at such a temperature, calculates annealing maximum
Process speed is Y=X/T, and after the completion of annealing, cold rolled titanium roll is cooled to less than 500 DEG C by argon purging, then air purging will be cold
Roll titanium volume and be cooled to less than 80 DEG C, terminate annealing.
Wherein, in the method for above-mentioned cold rolled titanium roll laser heating annealing, the cold rolled titanium roll described in step a is TA series, TB
One of series or TC series, cold rolled titanium roll thickness≤3.0mm.
Wherein, in the method for above-mentioned cold rolled titanium roll laser heating annealing, drying mode described in step a is to dry or natural wind
Dry.
Beneficial effects of the present invention are：The present invention carries out the annealing of cold rolled titanium roll using Muffle furnace bright annealing furnace,
Efficiency is low, energy utilization rate is low and is unable to quantity-produced asks when producing cold rolled titanium roll to not only solve existing bell type annealing furnace
Topic, also develops a kind of new application for Muffle furnace furnace for brightness continuous annealing production line, so that this production equipment had both been can apply to stainless
The annealing of steel, can also apply to the annealing of cold rolled titanium roll, improves utilization rate of equipment and installations, saved production cost.
Specific embodiment
The present invention provides a kind of method of cold rolled titanium roll laser heating annealing, and the method comprises the following steps：
A, the degreaser drying of cold rolled titanium roll
B, argon purging
Before annealing, in Muffle furnace bright annealing furnace, continuously it is passed through argon, until by air in Muffle furnace bright annealing furnace
Drain；
C, cold rolling coil annealing
Muffle furnace bright annealing furnace is warming up to 500～730 DEG C, after each area of body of heater rises to design temperature, uncoiling is passed through
Cold rolled titanium roll, according to body of heater length X and cold rolled titanium roll minimum recrystallization temperature retention time T at such a temperature, calculates annealing maximum
Process speed is Y=X/T, and after the completion of annealing, cold rolled titanium roll is cooled to less than 500 DEG C by argon purging, then air purging will be cold
Roll titanium volume and be cooled to less than 80 DEG C, terminate annealing.
Wherein, in the method for above-mentioned cold rolled titanium roll laser heating annealing, the cold rolled titanium roll described in step a is TA series, TB
One of series or TC series, cold rolled titanium roll thickness≤3.0mm.
Wherein, in the method for above-mentioned cold rolled titanium roll laser heating annealing, drying mode described in step a is to dry or natural wind
Dry.
The present invention annealed to cold rolled titanium roll using Muffle furnace bright continuous annealing line, it is to avoid use bell-type annealing
Stove, it is ensured that the continuous direct motion of production, has saved energy consumption and production cost.Traditional Muffle furnace bright continuous annealing line adopts ammonia
As source of the gas, ammonia easily resolves into N to gas neon at high temperature2And H2It is impossible to be applied to the annealing of cold rolled titanium roll, the present invention is special
Using argon gas neon, it is to avoid N, H impact to cold rolled titanium roll.
Below by embodiment, explanation is further explained to the specific embodiment of the present invention, but does not indicate that and will protect
Scope is limited in scope described in embodiment.
Embodiment adopts technical solution of the present invention to cold rolled titanium roll continuous annealing
Embodiment select to thickness for 1.0mm specification industrial pure titanium TA2 cold rolling coil stove area total length be 28m Muffle
Carry out recrystallization annealing process on stove bright annealing line.Concrete operation step is as follows：
A, the degreaser drying of cold rolled titanium roll
B, argon purging
Before annealing, in Muffle furnace bright annealing furnace, continuously it is passed through argon, until by air in Muffle furnace bright annealing furnace
Drain；
C, stove area and temperature setting
The annealing furnace of 28m length is divided into two sections of every section of 14m, annealing temperature is set between 650～730 DEG C, each area temperature
Setting as shown in table 1 below, for ensure industrial pure titanium TA2 cold rolling coil fully recrystallize, when 710 DEG C required temperature retention time >=
6min calculates, and annealing process speed is maximum process speed is 2.33m/min.
Table 1 1.0mm × 600mm × C specification TA2 cold rolling coil stove area parameter setting
Claims (4)
1. the method for cold rolled titanium roll laser heating annealing is it is characterised in that comprise the following steps：
A, the degreaser drying of cold rolled titanium roll
B, argon purging
Before annealing, in Muffle furnace bright annealing furnace, continuously it is passed through argon, until air in Muffle furnace bright annealing furnace is drained；
C, cold rolling coil annealing
Muffle furnace bright annealing furnace is warming up to 500～730 DEG C, after each area of body of heater rises to design temperature, uncoiling is passed through cold rolling
Titanium is rolled up, and according to body of heater length X and cold rolled titanium roll minimum recrystallization temperature retention time T at such a temperature, calculates the maximum technique of annealing
Speed is Y=X/T, and after the completion of annealing, cold rolled titanium roll is cooled to less than 500 DEG C by argon purging, then air purges cold rolled titanium
Volume is cooled to less than 80 DEG C, terminates annealing.
2. cold rolled titanium roll laser heating according to claim 1 annealing method it is characterised in that：Cold described in step a
Roll titanium to roll up as one of TA series, TB series or TC series.
3. cold rolled titanium roll laser heating according to claim 1 and 2 annealing method it is characterised in that：Described in step a
Cold rolled titanium roll thickness≤3.0mm.
4. according to any one of claims 1 to 3 cold rolled titanium roll laser heating annealing method it is characterised in that：Step a
Described drying mode is to dry or natural air drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993315.XA CN106435423A (en) | 2016-11-11 | 2016-11-11 | Continuous heating annealing method for cold-rolled titanium roll |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610993315.XA CN106435423A (en) | 2016-11-11 | 2016-11-11 | Continuous heating annealing method for cold-rolled titanium roll |
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| Publication Number | Publication Date |
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| CN106435423A true CN106435423A (en) | 2017-02-22 |
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| CN201610993315.XA Pending CN106435423A (en) | 2016-11-11 | 2016-11-11 | Continuous heating annealing method for cold-rolled titanium roll |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114410900A (en) * | 2021-12-13 | 2022-04-29 | 新疆湘润新材料科技有限公司 | Continuous stress relief annealing process for cold-rolled titanium strip |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1163849A (en) * | 1966-11-09 | 1969-09-10 | Contimet Gmbh | Method of producing Titanium or Titanium-Base Alloy Strip |
| JPS5360310A (en) * | 1976-11-12 | 1978-05-30 | Nippon Steel Corp | Continuous annealing method for titanium and titanium alloy |
| CN101654767A (en) * | 2009-09-28 | 2010-02-24 | 湖南湘投金天钛金属有限公司 | Vacuum protection atmosphere annealing process of industrial pure titanium roll |
| CN102051566A (en) * | 2011-01-10 | 2011-05-11 | 江苏呈飞精密合金股份有限公司 | Process for annealing cold rolled pure titanium and titanium alloy roll by continuous bright annealing furnace |
| CN104060205A (en) * | 2013-11-28 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Continuous annealing method of pure titanium roll |
-
2016
- 2016-11-11 CN CN201610993315.XA patent/CN106435423A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1163849A (en) * | 1966-11-09 | 1969-09-10 | Contimet Gmbh | Method of producing Titanium or Titanium-Base Alloy Strip |
| JPS5360310A (en) * | 1976-11-12 | 1978-05-30 | Nippon Steel Corp | Continuous annealing method for titanium and titanium alloy |
| CN101654767A (en) * | 2009-09-28 | 2010-02-24 | 湖南湘投金天钛金属有限公司 | Vacuum protection atmosphere annealing process of industrial pure titanium roll |
| CN102051566A (en) * | 2011-01-10 | 2011-05-11 | 江苏呈飞精密合金股份有限公司 | Process for annealing cold rolled pure titanium and titanium alloy roll by continuous bright annealing furnace |
| CN104060205A (en) * | 2013-11-28 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Continuous annealing method of pure titanium roll |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114410900A (en) * | 2021-12-13 | 2022-04-29 | 新疆湘润新材料科技有限公司 | Continuous stress relief annealing process for cold-rolled titanium strip |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20170308 Address after: Taishan Jianong town Shawan District of city of Leshan province Sichuan road 614000 No. 1 Applicant after: SICHUAN SOUTHWEST STAINLESS STEEL CO., LTD. Address before: Xiao Han Zhen Liu Lin Cun Guanghan, Sichuan city of Deyang province 1 agency 618304 Applicant before: Guanghan Cheng Mingxin Mstar Technology Ltd |
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Application publication date: 20170222 |