CN102409347A - Continuous annealing and darkening integrated process for steel coil and production line - Google Patents
Continuous annealing and darkening integrated process for steel coil and production line Download PDFInfo
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- CN102409347A CN102409347A CN2011103988334A CN201110398833A CN102409347A CN 102409347 A CN102409347 A CN 102409347A CN 2011103988334 A CN2011103988334 A CN 2011103988334A CN 201110398833 A CN201110398833 A CN 201110398833A CN 102409347 A CN102409347 A CN 102409347A
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Abstract
The invention provides a process in no need of secondary surface thermal treatment for a steel coil and a production line. The process comprises the following procedures of: 1) spreading a steel coil; 2) cleaning the surface of the steel tape; 3) annealing under the protection atmosphere of hydrogen; 4) introducing a steam medium and air for darkening when cooling the steel tape slowly to 330-450 DEG C, and darkening; 5) cooling in a water cooling tank when the temperature of the steel tape is cooled to be below 150 DEG C and 6) rolling the steel tape. The invention also provides a continuous annealing and darkening production line for a steel coil, which comprises an uncoiling section, a cleaning section, a heating section, a soaking section, a slow cooling section and a roiling section, and particulary a darkening section an a cooling section are arranged between the slow cooling section and the roiling section. According to the continuous annealing and darkening integrated process for a steel coil and a production line, the post-production cost can be saved, the product performance can be improved, and good economical benefit can be achieved.
Description
Technical field
The present invention relates to a kind of surface of steel plate thermal treatment process and production line, relate in particular to a kind of continuous annealing blackening and production line that is used for straight carbon steel coil of strip and no coating electrical steel coil of strip.
Background technology
No coating electrical steel coil of strip is carrying out before the usefulness of punching with the iron core of making motor or X-former, all pack with the continuous annealing production line oiling then of annealing usually, and does the blackout processing.After punching, also need carry out second annealing usually and handle with blackout.But; Second annealing with blackout processing need carry out again material loading, heating to the steel material that punching is come out, cool off, get operation such as material; And need Special Equipment; Some self are not had the punching enterprise of annealing and blackout equipment, also need the steel material be transported to other enterprise's processing, this will make the production cost of punching enterprise increase greatly.Therefore need improve existing coil of strip complete processing and production line.
Summary of the invention
The present invention provides a kind of coil of strip secondary surface process of thermal treatment and production line exempted.Technical scheme below adopting:
Coil of strip continuous annealing blackout integrated technique may further comprise the steps:
1) coil of strip is launched;
2) steel strip surface is cleaned;
3) under hydrogen shield atmosphere, carry out anneal;
4) when steel band slow cooling to 330 ℃～450 ℃, feed the processing of turning black of blackout water steam medium and air;
Get into the water-cooling groove cooling when 5) temperature of steel strips is less than 150 ℃;
6) with the steel band rolling.
In the above-mentioned production technique, coil of strip stress relieving is close-coupled processing with blackout, both can guarantee good annealing quality, can guarantee that again the two-sided blackout effect of steel band is even.And coil of strip blackout need not it is carried out extra-heated when handling, and therefore can save heating cost.After the coil of strip blackout is handled; Its erosion resistance significantly increases, and has not only promoted the performance of steel plate, also can save to be coated with after oil guard operation and the punching heat treatment step once more; Under the condition that does not increase any production cost, improved the magnetic strength of electrical steel product; Reduced iron loss, electrical efficiency provides about 1～2%, has promoted product performance.Can save cost, can promote performance again, have good economic benefits.
The present invention also provides a kind of coil of strip continuous annealing blackout production line, comprises the uncoiling section, cleans section, heating zone, soaking zone, slow cooling section and rolling section, especially, between slow cooling section and rolling section, is provided with blackout section and cooling section.
Blackout section is used for when steel band slow cooling to 330 ℃～450 ℃, feeds turn black water steam medium and air to the steel band processing of turning black; Steel band when cooling section is used for temperature less than 150 ℃ cools off.This production line is annealing, the blackout one production line of continous way, can exempt the second heat treatment operation after the coil of strip punching, effectively reduces the punching production cost of products, and can be through on existing continuous annealing production line, converting, and the repacking cost is low.
Description of drawings
Fig. 1 is the structural representation of embodiment.
Description of reference numerals: 1-uncoiling section; 2-cleans section; The 3-heating zone; The 4-soaking zone; The 5-slow cooling section; 6-turn black the section; The 7-cooling section; 8-rolling section; 9-roller welding machine; The 10-tensioner; The 11-entry loop; 12-technology is coated with interval; 13-is dried section; 14-exports kink; The subsequent use oiling section of 15-; 101-first Abrollhaspel; 102-first shearing machine; 103-second Abrollhaspel; 104-second shearing machine; 201-alkalescence cleaning machine; The acid cleaning machine of 202-; 203-clear water cleaning machine; 801-exports shearing machine; The 802-winder.
Embodiment
Below in conjunction with embodiment content of the present invention is described further.With the electrical steel coil of strip is example:
1) coil of strip is launched;
2) steel strip surface is carried out alkalescence cleaning, the acid cleaning and the clear water cleaning;
3) under hydrogen shield atmosphere, carry out anneal;
4) when steel band slow cooling to 390 ℃, feed the processing of turning black of blackout water steam medium and air;
Get into the water-cooling groove cooling when 5) temperature of steel strips is less than 150 ℃;
6) oven dry;
7) with the steel band rolling.
Through above procedure of processing, will obtain does not have coating electrical steel coil of strip through annealed, this coil of strip material is carried out punching after, need not to carry out second annealing and blackout and handle and can guarantee that also the punching product has erosion resistance and high magnetic strength property.
As shown in Figure 1, the coil of strip continuous annealing blackout production line of present embodiment is made up of the uncoiling section 1 that is arranged in order, cleaning section 2, heating zone 3, soaking zone 4, slow cooling section 5, blackout section 6, cooling section 7 and rolling section 8.
Wherein, uncoiling section 1 is made up of first Abrollhaspel 101, first shearing machine 102, second Abrollhaspel 103 and second shearing machine 104; Cleaning section 2 is made up of alkaline cleaning machine 201, acid cleaning machine 202, clear water cleaning machine 203; Rolling section 8 is made up of with winder 802 outlet shearing machine 801.
Between uncoiling section 1 and cleaning section 2, also be provided with roller welding machine 9 and tensioner 10 successively; Between cleaning section 2 and heating zone 3, also be provided with entry loop 11; Between cooling section 7 and rolling section 8, also be provided with technology successively and be coated with interval 12, oven dry section 13, outlet kink 14 and subsequent use oiling section 15.
The production line of present embodiment is close-coupled processing with blackout with coil of strip stress relieving, and coil of strip blackout need not it is carried out extra-heated when handling, and can save the subsequent production cost, can promote product performance again, has good economic benefits.
This specification lists be merely preferred embodiments of the present invention, all equivalent technologies conversion of under principle of work of the present invention and thinking, being done all are regarded as protection scope of the present invention.
Claims (7)
1. coil of strip continuous annealing blackout integrated technique is characterized in that: may further comprise the steps:
1) coil of strip is launched;
2) steel strip surface is cleaned;
3) under hydrogen shield atmosphere, carry out anneal;
4) when steel band slow cooling to 330 ℃～450 ℃, feed the processing of turning black of blackout water steam medium and air gas mixture;
Get into the water-cooling groove cooling when 5) temperature of steel strips is less than 150 ℃;
6) with the steel band rolling.
2. a coil of strip continuous annealing blackout production line comprises the uncoiling section, cleans section, heating zone, soaking zone, slow cooling section and rolling section, it is characterized in that: between slow cooling section and rolling section, be provided with blackout section and cooling section.
3. a kind of coil of strip continuous annealing blackout production line as claimed in claim 2, it is characterized in that: uncoiling section (1) is made up of first Abrollhaspel (101), first shearing machine (102), second Abrollhaspel (103) and second shearing machine (104).
4. a kind of coil of strip continuous annealing blackout production line as claimed in claim 2 is characterized in that: clean section (2) and be made up of alkaline cleaning machine (201), acid cleaning machine (202), clear water cleaning machine (203).
5. a kind of coil of strip continuous annealing blackout production line as claimed in claim 2, it is characterized in that: rolling section 8 is made up of outlet shearing machine (801) and winder (802).
6. a kind of coil of strip continuous annealing blackout production line as claimed in claim 2 is characterized in that: between uncoiling section (1) and cleaning section (2), also be provided with roller welding machine (9) and tensioner (10) successively.
7. a kind of coil of strip continuous annealing blackout production line as claimed in claim 2 is characterized in that: between cleaning section (2) and heating zone (3), also be provided with entry loop (11); Between cooling section (7) and rolling section (8), also be provided with technology successively and be coated with interval (12), oven dry section (13), outlet kink (14) and subsequent use oiling section (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103988334A CN102409347A (en) | 2011-12-05 | 2011-12-05 | Continuous annealing and darkening integrated process for steel coil and production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103988334A CN102409347A (en) | 2011-12-05 | 2011-12-05 | Continuous annealing and darkening integrated process for steel coil and production line |
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| CN102409347A true CN102409347A (en) | 2012-04-11 |
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| CN2011103988334A Pending CN102409347A (en) | 2011-12-05 | 2011-12-05 | Continuous annealing and darkening integrated process for steel coil and production line |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154635A (en) * | 2015-09-17 | 2015-12-16 | 宝钢集团南通线材制品有限公司 | Oxygenic steam bluing method for corrosion-resistant spring steel |
| CN105274312A (en) * | 2015-11-20 | 2016-01-27 | 西安东威电炉设备有限公司 | Full-automatic oil removing, annealing and blueing treatment production line |
| CN107932195A (en) * | 2017-10-13 | 2018-04-20 | 江苏捷帝机器人股份有限公司 | A kind of polishing after-treatment system of metal machinery people component |
| CN110923421A (en) * | 2018-09-19 | 2020-03-27 | 上海燊屿精密设备有限公司 | Stress relieving process of precise stainless steel semi-hardness continuous furnace |
| CN112176158A (en) * | 2020-10-09 | 2021-01-05 | 新疆八一钢铁股份有限公司 | Annealing and bluing process for common cold-rolled coil |
-
2011
- 2011-12-05 CN CN2011103988334A patent/CN102409347A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| > 19811231 程季青,沈家骅,徐承 20MnTiB钢冷镦高强度螺栓 12-13 1-7 , * |
| 程季青,沈家骅,徐承: "20MnTiB钢冷镦高强度螺栓", <<中国铁路>> * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154635A (en) * | 2015-09-17 | 2015-12-16 | 宝钢集团南通线材制品有限公司 | Oxygenic steam bluing method for corrosion-resistant spring steel |
| CN105274312A (en) * | 2015-11-20 | 2016-01-27 | 西安东威电炉设备有限公司 | Full-automatic oil removing, annealing and blueing treatment production line |
| CN107932195A (en) * | 2017-10-13 | 2018-04-20 | 江苏捷帝机器人股份有限公司 | A kind of polishing after-treatment system of metal machinery people component |
| CN110923421A (en) * | 2018-09-19 | 2020-03-27 | 上海燊屿精密设备有限公司 | Stress relieving process of precise stainless steel semi-hardness continuous furnace |
| CN112176158A (en) * | 2020-10-09 | 2021-01-05 | 新疆八一钢铁股份有限公司 | Annealing and bluing process for common cold-rolled coil |
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Application publication date: 20120411 |