CN104152832B - The vacuum annealing process of cold rolling industry pure titanium coil - Google Patents
The vacuum annealing process of cold rolling industry pure titanium coil Download PDFInfo
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- CN104152832B CN104152832B CN201410424370.8A CN201410424370A CN104152832B CN 104152832 B CN104152832 B CN 104152832B CN 201410424370 A CN201410424370 A CN 201410424370A CN 104152832 B CN104152832 B CN 104152832B
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Abstract
The present invention discloses the vacuum annealing process of a kind of cold rolling industry pure titanium coil, comprises the following steps: load in vacuum annealing furnace by 3 cold rolled titanium rolls after surface cleaning, to vacuum oven forvacuum to vacuum tightness��2.0 �� 10-3Pa; Then with the temperature rise rate of 40��90 DEG C/h, furnace temperature is risen to 450��500 DEG C, it is incubated 3��6 hours; After continuing, with the temperature rise rate of 50��100 DEG C/h, furnace temperature is risen to 600��680 DEG C, then rare gas element to the pressure being filled with purity >=99.99% in stove is 2.0��8.0kPa, is incubated 4��8 hours; Close heating system, after furnace temperature being cooled to 330��370 DEG C with the rate of cooling of 50��100 DEG C/h, open and force cooling system, until taking out titanium volume behind furnace temperature��150 DEG C. Titanium volume surface smoothness after annealing is consistent, after testing the homogeneous microstructure of Internal and external cycle, good mechanical properties, satisfy the demands completely.
Description
Technical field
The present invention relates to the thermal treatment process of pure titanium, the vacuum annealing process of especially a kind of pure titanium roll.
Background technology
Industrially pure titanium is according to the difference of impurities composition and cold deformation rate, there is the different recrystallization temperature within the scope of 450��550 DEG C, the annealing temperature of titanium volume should higher than recrystallization temperature, could ensure that the recrystallize that titanium is rolled up carries out completely, wherein, the temperature reached should be heated when annealing temperature refers to annealing. The chemical property of titanium is enlivened, at high temperature easily occur to react and generate zone of oxidation with the element such as O, H, N in air, physicochemical property is deteriorated, not only hardness and fragility increase, plasticity and elasticity reduce, and under high temperature, the adsorptivity of industrially pure titanium is also relatively strong, and after cleaning, the carbide in the residue on titanium volume surface, annealing intensification atmosphere and dust may be adsorbed to titanium volume surface, form annealing blackspot, thus affect the surface quality of titanium volume.
At present, the annealing way of domestic pure titanium roll mainly contains vacuum oven annealing, cover annealing and continuous annealing three kinds. Wherein, bell furnace is mainly used in coil annealing, titanium is rolled up, cover annealing is the anti-oxidation of measure adopting filling with inert gas protection, but this technique displaced air ability is limited, the air of residual easily makes titanium surface and the element reaction such as N, H, O in air, affect surface quality, and the titanium after simultaneously cleaning is rolled up surface residue and can not be discharged by vacuum system; Continuous annealing is adopted to have the high remarkable feature of production efficiency, but the oxidation of annealing rear surface is serious, it is necessary to carry out the surface treatment such as pickling or alkali cleaning and could meet requirement; Vacuum annealing is discharged by furnace air before heating; heat under the environment of low vacuum state; and by vacuum pump, surface volatile matter is discharged to outside stove; then it is filled with protection of inert gas in certain stage; until cooling is come out of the stove; therefore the overall quality on titanium volume surface can be ensured, therefore finished product titanium volume is heat-treated by normal employing vacuum annealing.
On the one hand, the lubricating oil used in the titanium volume operation of rolling makes the volume of the titanium after rolling surface form one layer of mimeograph, even if through cleaning by degreasing, generally also can leave oil film; On the other hand, the titanium volume hardness height after rolling, processing difficulties, therefore the effect of vacuum annealing substantially takes off the residue except titanium volume surface exactly and makes it soften, reduces hardness, improves machinability. Annealing process is improper can affect surface smoothness and tissue homogeneous degree, and owing to titanium thermal conductivity is poor, coil annealing and strip annealing exist bigger difference, and the annealing process of titanium plate and titanium band can not be directly used in the annealing of titanium volume.
CN101654767A discloses the vacuum protection atmosphere annealing process of a kind of industrial pure titanium roll, can annealing cycle shortening greatly, but after annealing, the surface clearness of titanium volume is high not enough, entire volume organize even not.
Summary of the invention
Find through research; the vacuum protection atmosphere annealing process of industrial pure titanium roll disclosed in CN101654767A; its technique have employed and heat up faster and rate of temperature fall; soaking time is also shorter; for the pure titanium roll that thermal conduction is slower; after annealing, the surface clearness of titanium volume is not high enough, and entire volume is organized even not.
Technical problem to be solved by this invention is to provide the vacuum annealing process of a kind of cold rolling industry pure titanium coil, after can ensureing to anneal, titanium volume surface smoothness is consistent, degree of cleaning height, can make again that entire volume grain fineness number is consistent, homogeneous microstructure, obtain excellent mechanical property, it is to increase the integrated quality of titanium volume.
The technical solution adopted for the present invention to solve the technical problems:
The vacuum annealing process of cold rolling industry pure titanium coil, comprises the following steps:
A, the cold rolling industry pure titanium coil after surface cleaning is loaded in vacuum annealing furnace, to vacuum oven forvacuum to vacuum tightness��2.0 �� 10-3Pa; Then with the temperature rise rate of 40��90 DEG C/h, furnace temperature is risen to 450��500 DEG C, it is incubated 3��6 hours; Keep vacuum tightness��2.0 �� 10-3Pa, can prevent titanium volume surface oxidized, is conducive to again the greasy dirt on titanium volume surface and impurity volatilization to discharge, makes titanium volume surface clearness height;
B, continue, with the temperature rise rate of 50��100 DEG C/h, furnace temperature is risen to 600��680 DEG C after, then rare gas element to the pressure being filled with purity >=99.99% in stove is 2.0��8.0kPa, is incubated 4��8 hours;
C, closedown heating system, after furnace temperature being cooled to 330��370 DEG C with the rate of cooling of 50��100 DEG C/h, open and force cooling system, until taking out titanium volume behind furnace temperature��150 DEG C.
Preferably, in steps A, temperature rise rate is 50��80 DEG C/h.
Preferably, in steps A, furnace temperature is risen to 460��480 DEG C, it is incubated 3��3.5 hours.
Preferably, in step B, furnace temperature is risen to 630��650 DEG C, it is incubated 4.5��6.5 hours.
Preferably, in step B, purity >=99.999% of rare gas element.
Preferably, in step C, after furnace temperature being cooled to 330��370 DEG C with the rate of cooling of 50��80 DEG C/h, open and force cooling system.
Preferably, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
Preferably, in step B, it is filled with ON cycle blower fan after rare gas element.
Preferably, before steps A, the surface rolled up by titanium by chemical bases washing method carries out skimming treatment.
Preferably, before steps A, in the titanium volume operation of rolling, adopt oil soluble mineral oil as lubricating oil.
The invention has the beneficial effects as follows: the vacuum annealing process of the cold rolling industry pure titanium coil of the present invention, in steps A, keep vacuum tightness��2.0 �� 10-3Pa, can prevent titanium volume surface oxidized, is conducive to again titanium volume surface impurity volatilization to discharge, makes titanium volume surface clearness height; In step B, it is filled with rare gas element at stove internal recycle, it is possible to promote medium heat-transfer, is conducive to titanium volume Internal and external cycle annealing temperature homogeneity; In temperature-rise period, heat rolls up outer ring from titanium to transmit toward inner ring, and heat transmits from inner ring toward outer ring in process of cooling, owing to the heat conductivility of titanium is poor, by by process parameter controls such as temperature rise rate, soaking time, rate of temperature fall and tapping temperatures in specific scope, proper extension annealing time, after can ensureing annealing, titanium volume entire volume grain fineness number is consistent, homogeneous microstructure, obtains excellent mechanical property.
Embodiment
The vacuum annealing process of the cold rolling industry pure titanium coil of the present invention, comprises the following steps:
A, the cold rolling industry pure titanium coil after surface cleaning is loaded in vacuum annealing furnace, to vacuum oven forvacuum to vacuum tightness��2.0 �� 10-3Pa; Then with the temperature rise rate of 40��90 DEG C/h, furnace temperature is risen to 450��500 DEG C, it is incubated 3��6 hours; In annealing process, in order to reduce a ton titanium cost, under normal circumstances, disposable loading 2 or 3 titaniums are rolled onto in vacuum oven; Keep vacuum tightness��2.0 �� 10-3Pa, can prevent titanium volume surface oxidized, is conducive to again the greasy dirt on titanium volume surface and impurity volatilization to discharge, makes titanium volume surface clearness height;
B, continue, with the temperature rise rate of 50��100 DEG C/h, furnace temperature is risen to 600��680 DEG C after, then rare gas element to the pressure being filled with purity >=99.99% in stove is 2.0��8.0kPa, is incubated 4��8 hours; Being conducive to after filling with inert gas accelerating thermal conduction, thus shorten heat-up time, but after being filled with rare gas element, the volatile matter in stove just stops outer row, if vacuum time is not enough, with regard to filling with inert gas, may there is residual greasy dirt in surface; In order to ensure titanium volume surface clearness, it is necessary to extend the time of vacuum state in stove; Therefore, after first in-furnace temperature being risen to 600��680 DEG C, then in stove, it is filled with the rare gas element of purity >=99.99%.
C, closedown heating system, after furnace temperature being cooled to 330��370 DEG C with the rate of cooling of 50��100 DEG C/h, open and force cooling system, until taking out titanium volume behind furnace temperature��150 DEG C. Force cooling system to comprise interchanger and recirculation blower, open after forcing cooling system, force process of cooling to accelerate in-furnace temperature cooling by interchanger, by the rare gas element in cool furnace, promoting titanium volume cooling, the object of ON cycle blower fan adds strong mixing, promotes heat radiation; Open after forcing cooling system, it is possible to make the cooling fast of more uniform temperature ground. Rate of cooling is low, being possible to prevent strong expanding with heat and contract with cold causes surface bonding occur, namely between layer, matrix atom produces diffusion in process of expansion and contraction under the effect of tensile stress and stress, thus after avoiding annealing to terminate, uncoiling process occur surface matrix be separated, producing pit, tear, even the defect such as hole occurs.
Preferably, in the above-described embodiment, in steps A, temperature rise rate is 50��80 DEG C/h.
Preferably, in the above-described embodiment, in steps A, furnace temperature is risen to 460��480 DEG C, it is incubated 3��3.5 hours.
Preferably, in the above-described embodiment, in step B, furnace temperature is risen to 630��650 DEG C, it is incubated 4.5��6.5 hours.
If purity inert gas is not high enough, then may because wherein the titanium volume surface quality after annealing being had a negative impact doped with impurity such as oxygen, it is preferable that, in the above-described embodiment, in step B, purity >=99.999% of rare gas element.
Preferably, in the above-described embodiment, in step C, after furnace temperature being cooled to 330��370 DEG C with the rate of cooling of 50��80 DEG C/h, open and force cooling system.
Preferably, in the above-described embodiment, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
Preferably, in the above-described embodiment, in step B, it is filled with ON cycle blower fan after rare gas element. Rare gas element is stirred by recirculation blower, it is possible to promote titanium volume uniformly transfer heat.
For obtaining better titanium volume surface quality, as preferred embodiment, before steps A, the surface rolled up by titanium by chemical bases washing method carries out skimming treatment. Skimming processes adopts special alkali lye formula, and coordinate electrolysis process, can effectively remove mimeograph, wherein, in skimming treatment process, it being cleaned twice by two rinse baths, the alkali lye in two rinse baths is NaOH solution, the concentration of the NaOH solution cleaning first time is 4��5wt%, and the concentration of the NaOH solution cleaning the 2nd time is 3��4wt%; Faradaic current is 250A.
In order to improve surface gloss, it is preferable that, before steps A, in the titanium volume operation of rolling, adopt oil soluble mineral oil as lubricating oil.
In above-mentioned enforcement mode, it is preferred to use argon gas is as rare gas element.
Adopt the vacuum annealing process of the cold rolling industry pure titanium coil of the present invention, by by process parameter controls such as temperature rise rate, soaking time, rate of temperature fall and tapping temperatures in specific scope, proper extension annealing time, can make that entire volume grain fineness number is consistent, homogeneous microstructure what ensure titanium volume surface smoothness simultaneously, obtain excellent mechanical property. Titanium volume after annealing, uncoiling rear surface smooth finish is consistent, and the homogeneous microstructure of Internal and external cycle and good mechanical properties, satisfy the demands completely after testing.
Below in conjunction with embodiment, the specific embodiment of the present invention is further described, does not therefore limit the present invention among described scope of embodiments.
In embodiment 1 to embodiment 5 below, forcing cooling system to comprise: two cover interchanger, often overlapping power is 75kW; Three recirculation blowers, every platform power is 1.5kW.
Embodiment 1
Load in vacuum annealing furnace after A, three cold rolled titanium roll surface cleaning that quality is respectively 6.57t/6.89t/7.04t, forvacuum to 2.0 �� 10-3After Pa, then with the temperature rise rate of 50 DEG C/h, furnace temperature is risen to 460 DEG C, it is incubated 3 hours;
B, continue, with the temperature rise rate of 100 DEG C/h, furnace temperature is risen to 630 DEG C after, start to be filled with in stove purity be 99.99% argon gas to pressure be 6.5kPa, ON cycle blower fan, and be incubated 5 hours;
C, closedown heating, after furnace temperature being cooled to 350 DEG C with the rate of cooling of 60 DEG C/h, open and force cooling system, until furnace temperature is come out of the stove after being cooled to 150 DEG C.
After testing, the titanium volume obtained, surface metal glossiness is even, degree of cleaning height; Titanium volume outer ring, middle part and inner ring grain fineness number are 7.0, and yield strength mean value is respectively 181MPa, 197MPa and 188MPa, it thus is seen that the titanium volume surface smoothness after annealing is consistent, and the homogeneous microstructure of titanium volume outer ring, middle part and inner ring, good mechanical properties.
Embodiment 2
Load in vacuum annealing furnace after A, three cold rolled titanium roll surface cleaning that quality is respectively 6.75t/7.23t/7.30t, forvacuum to 2.0 �� 10-3After Pa, with the temperature rise rate of 50 DEG C/h, furnace temperature is risen to 450 DEG C, it is incubated 3.5 hours;
B, continue, with the temperature rise rate of 100 DEG C/h, furnace temperature is risen to 650 DEG C after, start to be filled with in stove purity be 99.99% argon gas to pressure be 7.0kPa, ON cycle blower fan, and be incubated 4.5 hours;
C, closedown heating, after furnace temperature being cooled to 370 DEG C with the rate of cooling of 70 DEG C/h, open and force cooling system, until furnace temperature is come out of the stove after being cooled to 140 DEG C.
After testing, the titanium volume obtained, surface metal glossiness is even, degree of cleaning height; Titanium volume outer ring, middle part and inner ring grain fineness number are 7.5, and yield strength mean value is respectively 212MPa, 221MPa and 205MPa, it thus is seen that the titanium volume surface smoothness after annealing is consistent, and the homogeneous microstructure of titanium volume outer ring, middle part and inner ring, good mechanical properties.
Embodiment 3
Load in vacuum annealing furnace after A, three cold rolled titanium roll surface cleaning that quality is respectively 7.20t/6.96t/7.28t, forvacuum to 2.0 �� 10-3After Pa, with the temperature rise rate of 60 DEG C/h, furnace temperature is risen to 500 DEG C, it is incubated 2 hours;
B, continue, with the temperature rise rate of 50 DEG C/h, furnace temperature is risen to 600 DEG C after, start to be filled with in stove purity be 99.99% argon gas to pressure be 5.0kPa, ON cycle blower fan, and be incubated 6.5 hours;
C, closedown heating, after furnace temperature being cooled to 330 DEG C with the rate of cooling of 80 DEG C/h, open and force cooling system, until furnace temperature is come out of the stove after being cooled to 130 DEG C.
After testing, the titanium volume obtained, surface metal glossiness is even, degree of cleaning height; Titanium volume outer ring, middle part and inner ring grain fineness number are 7.0, and yield strength mean value is respectively 195MPa, 200MPa and 188MPa, it thus is seen that the titanium volume surface smoothness after annealing is consistent, and the homogeneous microstructure of titanium volume outer ring, middle part and inner ring, good mechanical properties.
Embodiment 4
Load in vacuum annealing furnace after A, three cold rolled titanium roll surface cleaning that quality is respectively 7.22t/7.21t/7.24t, forvacuum to 2.0 �� 10-3After Pa, with the temperature rise rate of 80 DEG C/h, furnace temperature is risen to 480 DEG C, it is incubated 3 hours;
B, continue, with the temperature rise rate of 100 DEG C/h, furnace temperature is risen to 680 DEG C after, start to be filled with in stove purity be 99.99% argon gas to pressure be 7.5kPa, ON cycle blower fan, and be incubated 3.5 hours;
C, closedown heating, after furnace temperature being cooled to 370 DEG C with the rate of cooling of 60 DEG C/h, open and force cooling system, until furnace temperature is come out of the stove after being cooled to 140 DEG C.
After testing, the titanium volume obtained, surface metal glossiness is even, degree of cleaning height; Titanium volume outer ring, middle part and inner ring grain fineness number are 7.5, and yield strength mean value is respectively 211MPa, 225MPa and 205MPa, it thus is seen that the titanium volume surface smoothness after annealing is consistent, and the homogeneous microstructure of titanium volume outer ring, middle part and inner ring, good mechanical properties.
Embodiment 5
Load in vacuum annealing furnace after A, three cold rolled titanium roll surface cleaning that quality is respectively 7.25t/7.10t/7.28t, forvacuum to 1.0 �� 10-3After Pa, with the temperature rise rate of 50 DEG C/h, furnace temperature is risen to 500 DEG C, it is incubated 3 hours;
After furnace temperature is risen to 630 DEG C by B, the temperature rise rate continuing 100 DEG C/h, start to be filled with in stove purity be 99.99% argon gas to pressure be 5.0kPa, ON cycle blower fan, and be incubated 5.5 hours;
C, closedown heating, after furnace temperature being cooled to 350 DEG C with the rate of cooling of 50 DEG C/h, open and force cooling system, until furnace temperature is come out of the stove after being cooled to 150 DEG C.
After testing, the titanium volume obtained, surface metal glossiness is even, degree of cleaning height; Titanium volume outer ring, middle part and inner ring grain fineness number are 7.5, and yield strength mean value is respectively 216Mpa, 220Mpa and 212Mpa, it thus is seen that the titanium volume surface smoothness after annealing is consistent, and the homogeneous microstructure of titanium volume outer ring, middle part and inner ring, good mechanical properties.
Comparative example 1
(1) load in vacuum protection atmosphere annealing furnace after quality is respectively three cold rolled titanium roll surface cleaning of 7.14t/6.89t/7.23t, it is evacuated to vacuum tightness and reaches 1.0 �� 10-3After Pa, start, with the temperature rise rate of 150 DEG C/h, furnace temperature is risen to 450 DEG C, it is incubated 2 hours;
(2) adopt purity to be the argon gas of 99.99%, circulate in stove under pressure is for-5kPa condition, with the temperature rise rate of 100 DEG C/h, furnace temperature is risen to 680 DEG C, be incubated 4 hours;
(3) after insulation terminates, close heating system, after furnace temperature being cooled to 540 DEG C with the rate of cooling of 150 DEG C/h, open the pressure cooling system with exchanging air, come out of the stove after being cooled to 170 DEG C.
After testing, the titanium volume obtained, edge is shown in a little mimeograph, and titanium volume outer ring, middle part and inner ring grain fineness number are respectively 6.5,5.5 and 6.0; Yield strength mean value is respectively 192MPa, 179MPa and 185MPa.
Comparative example 2
(1) load in vacuum protection atmosphere annealing furnace after quality is respectively three cold rolled titanium roll surface cleaning of 7.09t/7.28t/7.11t, it is evacuated to vacuum tightness and reaches 1.0 �� 10-3After Pa, start, with the temperature rise rate of 100 DEG C/h, furnace temperature is risen to 500 DEG C, it is incubated 1.5 hours;
(2) adopt purity to be the argon gas of 99.99%, circulate in stove under pressure is for-7kPa condition, with the temperature rise rate of 150 DEG C/h, furnace temperature is risen to 740 DEG C, be incubated 2 hours;
(3) after insulation terminates, close heating system, after furnace temperature being cooled to 460 DEG C with the rate of cooling of 140 DEG C/h, open the pressure cooling system with exchanging air, come out of the stove after being cooled to 170 DEG C.
After testing, the titanium volume obtained, edge color is relatively dark, and titanium volume outer ring, middle part and inner ring grain fineness number are respectively 6.5,6.0 and 7.0; Yield strength mean value is respectively 200MPa, 189MPa and 220MPa.
Comparative example 3
(1) load in vacuum protection atmosphere annealing furnace after quality is respectively three cold rolled titanium roll surface cleaning of 7.01t/6.78t/6.94t, it is evacuated to vacuum tightness and reaches 1.0 �� 10-3After Pa, start, with the temperature rise rate of 150 DEG C/h, furnace temperature is risen to 430 DEG C, it is incubated 2.5 hours;
(2) adopt purity to be the argon gas of 99.99%, circulate in stove under pressure is for-10kPa condition, with the temperature rise rate of 100 DEG C/h, furnace temperature is risen to 620 DEG C, be incubated 6 hours;
(3) after insulation terminates, close heating system, after furnace temperature being cooled to 500 DEG C with the rate of cooling of 150 DEG C/h, open the pressure cooling system with exchanging air, come out of the stove after being cooled to 170 DEG C.
After testing, the titanium volume obtained, there is mimeograph at middle part, and titanium volume outer ring, middle part and inner ring grain fineness number are respectively 6.5,5.5 and 6.5; Yield strength mean value is respectively 201MPa, 178MPa and 206MPa.
Can be found out by each embodiment above and comparative example, adopting the titanium volume that the annealing process of the present invention obtains, after can ensureing to anneal, titanium volume surface smoothness is consistent, degree of cleaning height, can make again that entire volume grain fineness number is consistent, homogeneous microstructure, obtain excellent mechanical property, it is to increase the integrated quality of titanium volume.
Claims (17)
1. the vacuum annealing process of cold rolling industry pure titanium coil, it is characterised in that, comprise the following steps:
A, the cold rolled titanium roll after surface cleaning is loaded in vacuum annealing furnace, to vacuum oven forvacuum to vacuum tightness��2.0 �� 10-3Pa; Then with the temperature rise rate of 40��90 DEG C/h, furnace temperature is risen to 450��500 DEG C, it is incubated 3��6 hours;
B, continue, with the temperature rise rate of 50��100 DEG C/h, furnace temperature is risen to 600��680 DEG C after, then rare gas element to the pressure being filled with purity >=99.99% in stove is 2.0��8.0kPa, is incubated 4��8 hours;
C, closedown heating system, after furnace temperature being cooled to 330��370 DEG C with the rate of cooling of 50��80 DEG C/h, open and force cooling system, until taking out titanium volume behind furnace temperature��150 DEG C.
2. the vacuum annealing process of cold rolling industry pure titanium coil as claimed in claim 1, it is characterised in that, in steps A, temperature rise rate is 50��80 DEG C/h.
3. the vacuum annealing process of cold rolling industry pure titanium coil as claimed in claim 1 or 2, it is characterised in that, in steps A, furnace temperature is risen to 460��480 DEG C, it is incubated 3��3.5 hours.
4. the vacuum annealing process of cold rolling industry pure titanium coil as claimed in claim 1 or 2, it is characterised in that, in step B, furnace temperature is risen to 630��650 DEG C, it is incubated 4.5��6.5 hours.
5. the vacuum annealing process of cold rolling industry pure titanium coil as claimed in claim 3, it is characterised in that, in step B, furnace temperature is risen to 630��650 DEG C, it is incubated 4.5��6.5 hours.
6. the vacuum annealing process of cold rolling industry pure titanium coil as claimed in claim 1 or 2, it is characterised in that, in step B, purity >=99.999% of rare gas element.
7. the vacuum annealing process of cold rolling industry pure titanium coil as claimed in claim 3, it is characterised in that, in step B, purity >=99.999% of rare gas element.
8. the vacuum annealing process of cold rolling industry pure titanium coil as claimed in claim 4, it is characterised in that, in step B, purity >=99.999% of rare gas element.
9. the vacuum annealing process of cold rolling industry pure titanium coil as claimed in claim 5, it is characterised in that, in step B, purity >=99.999% of rare gas element.
10. the vacuum annealing process of cold rolling industry pure titanium coil as claimed in claim 1 or 2, it is characterised in that, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
The vacuum annealing process of 11. cold rolling industry pure titanium coils as claimed in claim 3, it is characterised in that, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
The vacuum annealing process of 12. cold rolling industry pure titanium coils as claimed in claim 4, it is characterised in that, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
The vacuum annealing process of 13. cold rolling industry pure titanium coils as claimed in claim 5, it is characterised in that, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
The vacuum annealing process of 14. cold rolling industry pure titanium coils as claimed in claim 6, it is characterised in that, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
The vacuum annealing process of 15. cold rolling industry pure titanium coils as claimed in claim 7, it is characterised in that, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
The vacuum annealing process of 16. cold rolling industry pure titanium coils as claimed in claim 8, it is characterised in that, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
The vacuum annealing process of 17. cold rolling industry pure titanium coils as claimed in claim 9, it is characterised in that, in step C, after furnace temperature is cooled to 350 DEG C, opens and force cooling system.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB852405A (en) * | 1956-08-15 | 1960-10-26 | English Electric Co Ltd | Improvements in and relating to the cold rolling of titanium strip |
| CN101481786A (en) * | 2009-02-21 | 2009-07-15 | 奉化市光亮热处理电炉有限公司 | Vacuum heat treatment furnace for metallic titanium coiled material and heat treatment method thereof |
| 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 |
| CN103409642A (en) * | 2013-05-27 | 2013-11-27 | 洛阳双瑞精铸钛业有限公司 | Processing method of low yield ratio high strength titanium coiled plate for heat exchanger |
-
2014
- 2014-08-26 CN CN201410424370.8A patent/CN104152832B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB852405A (en) * | 1956-08-15 | 1960-10-26 | English Electric Co Ltd | Improvements in and relating to the cold rolling of titanium strip |
| CN101481786A (en) * | 2009-02-21 | 2009-07-15 | 奉化市光亮热处理电炉有限公司 | Vacuum heat treatment furnace for metallic titanium coiled material and heat treatment method thereof |
| 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 |
| CN103409642A (en) * | 2013-05-27 | 2013-11-27 | 洛阳双瑞精铸钛业有限公司 | Processing method of low yield ratio high strength titanium coiled plate for heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| 工业纯钛的冷轧生产技术;村冈一雄等;《有色金属加工》;19961231(第6期);第34-35页，第8.1节,第35页左栏第2段第4-7行,第34页右栏第3段,第33页右栏第2段第1行 * |
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