CN101532118A - Device for hot-dip coating Al-Zn (aluminum-zincic) on super high-strength band steel and processing technology - Google Patents
Device for hot-dip coating Al-Zn (aluminum-zincic) on super high-strength band steel and processing technology Download PDFInfo
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- CN101532118A CN101532118A CN200810034472A CN200810034472A CN101532118A CN 101532118 A CN101532118 A CN 101532118A CN 200810034472 A CN200810034472 A CN 200810034472A CN 200810034472 A CN200810034472 A CN 200810034472A CN 101532118 A CN101532118 A CN 101532118A
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Abstract
The invention discloses a device for hot-dip coating Al-Zn (aluminum-zincic) on super high-strength band steel and processing technology. The device comprises a decoiler, a pickler, a front looper, an annealing furnace, a fast cooling device, an overaging furnace, a back looper, a trimming machine and a coiling machine which are connected in sequence as well as an Al-Zn pot, at least one cooling bellows, water quench equipment and a drying unit, wherein the Al-Zn pot contains Al-Zn alloy liquid and is arranged between the annealing furnace and the fast cooling device, the cooling bellows is arranged between the fast cooling device and the overaging furnace, and the water quench equipment and the drying unit are arranged between the overaging furnace and the back looper. The device and the technology ensures the strength of the band steel, improves the product quality, overcomes the problem of difficult hot-dip coating mettallic coat on the super high-strength band steel products, improves the product profits of enterprises and brings in considerable economic benefit.
Description
Technical field
The present invention relates to be with the hot coating of steel field, relate in particular to a kind of production line with the steel hot-dip aluminizing zinc.
Background technology
The super-high strength steel belt steel product is a development trend of cold-rolled steel strip products.Ultra-high strength strip steel is often referred to the cold rolled strip of tensile strength greater than 600MPa.The mode that improves the band hardness of steel has two big classes: alloy strengthening and phase transformation strengthening.This dual mode mutually combines, and just according to producing the equipment situation different stressing is arranged.Have the market competitiveness and what be convenient to produce is the production technique that adopts in the phase transformation strengthening mode, promptly reduces alloy content by improving speed of cooling production ultra-high strength strip steel.The fast cooling technology and the equipment of this exploitation band steel of just need making great efforts.No matter be to adopt the phase transformation strengthening mode of using at present based on the mode or the employing of alloy strengthening, the ultra-high strength strip product made from steel of producing all can't carry out surface heat coating (pot galvanize, hot-dip aluminizing zinc etc.).
To improve alloy content is the main ultra-high strength strip steel of producing, and because of the alloy content height, its surface is difficult to plate zinc or aluminium-zinc alloy.Adopt phase transformation strengthening be the main operational path of producing ultra-high strength strip steel as shown in Figure 1,1 Abrollhaspel wherein, 2 picklers, kinks before 3,4 annealing furnaces, 5 quickly cooling devices, 6 overaging stoves, 7 back kinks, 8 levelling machines, 9 reeling machines.The band steel is gone into continuous annealing furnace 4 through overpickling is laggard, heats, enters quickly cooling device 5 after the soaking, slow cooling, adopts high speed of cooling to obtain the weave construction that super-high strength steel needs, and can obtain the ultra-high strength strip product made from steel through the overaging processing again.Adopt the phase transformation strengthening mode, reduce alloy content and produce super-high strength steel, can reduce the super-high strength steel product cost significantly.But reheat carries out pot galvanize behind the phase transformation strengthening, can reduce the intensity of product again, and this is a pair of contradiction.
Summary of the invention
The device and the complete processing that the purpose of this invention is to provide a kind of super-strong belt steel hot-dip aluminizing zinc, can guarantee the intensity of band steel, solved the difficult problem that the ultra-high strength strip product made from steel is difficult to hot-dip metal plated coating, reduce the production cost of ultra-high strength strip steel, improved economic benefit, and made full use of the production unit of prior art, repacking is simple.
The object of the present invention is achieved like this: a kind of device of super-strong belt steel hot-dip aluminizing zinc, comprise the Abrollhaspel that connects successively, and pickler, preceding kink, annealing furnace, quickly cooling device, the overaging stove, back kink, levelling machine, reeling machine also comprises:
One zinc aluminum pot, ccontaining aluminium-zinc alloy liquid in it, described zinc aluminum pot is located between annealing furnace and the quickly cooling device;
At least one cool wind box is located between quickly cooling device and the overaging stove;
One granulating unit and a drying unit are located between overaging stove and the back kink.
Preferably, described cool wind box is two pairs.
Preferably, the ingress of described quickly cooling device is provided with a lower sealing device, and the exit is provided with a discharge equipment.
Preferably, a stove nose is equipped with in the exit of described annealing furnace, and the stove nose stretches in the aluminium-zinc alloy liquation of zinc aluminum pot.
Preferably, described quickly cooling device is the aerosol quickly cooling device.
A kind of complete processing of super-strong belt steel hot-dip aluminizing zinc, may further comprise the steps: enter annealing furnace after being with steel via Abrollhaspel, pickling equipment, preceding kink, in annealing furnace, be heated to 800～870 ℃ and keep for some time, then slowly be cooled to enter after 550～670 ℃ 570～650 ℃ zinc aluminum pot, go out behind the zinc aluminum pot through quick cooling, speed of cooling is at 100～350 ℃/s, make band steel behind the hot-dip aluminizing zinc reach the purpose of phase transformation strengthening, pass through follow-up cooling subsequently, when the band steel arrives 250～300 ℃, carry out overaging processing, Water Quenching, polishing processing.
Preferably, described go out behind the zinc aluminum pot through the aerosol that is cooled to fast cool off fast.
The present invention is owing to adopted above technical scheme, make it compared with prior art, have the following advantages and positively effect: the intensity that has guaranteed the band steel, improved quality product, solved the problem that the ultra-high strength strip product made from steel is difficult to hot-dip metal plated coating, improve the profit of enterprise product, brought considerable economic.
Description of drawings
Fig. 1 is the band steel hot-dip aluminizing zinc streamline synoptic diagram of prior art;
Fig. 2 is a band steel hot-dip aluminizing zinc streamline synoptic diagram of the present invention.
Embodiment
As shown in Figure 2, comprise Abrollhaspel 1, pickling equipment 2, preceding kink 3, annealing furnace 4, stove nose 5, zinc aluminum pot 6, lower sealing device 7, quickly cooling device 8, discharge equipment 9, cool wind box 10, overaging stove 11, granulating unit 12, drying unit 13, back kink 14, levelling machine 15, reeling machine 16.
At first, the coil of strip that former process is produced enters pickling installation 2 after via Abrollhaspel 1 uncoiling to clean the surface of steel plate, kink 3 and continuous annealing furnace 4 before entering thereafter.Specification difference according to the actual production belt steel product, the band steel is heated to 850 ℃ and keeps for some time in continuous annealing furnace 4, then slowly be cooled to 600 ℃ and carry out hot-dip aluminizing zinc operation after stove nose 5 enters the zinc aluminum pot 6 of filling aluminium zinc liquid, the zinc aluminum pot 6 among the figure contains the aluminium zinc mixing liquid that temperature is certain proportioning of 630 ℃ (as: Al 55%, Zn43.5%, Si 1.5%).The steel plate that goes out zinc aluminum pot 6 enters lower sealing device 7, quickly cooling device 8, discharge equipment 9 and cool wind box 10 steel plate is cooled fast to 300 ℃, and speed of cooling is controlled at 120 ℃/s.Then steel plate is sent into the overaging processing that overaging stove 11 carries out material.Thereafter, steel plate further reduces steel billet temperature by granulating unit 12, moisture is removed in drying unit 13 oven dry, carrying out smooth processing by back kink 14, levelling machine 15 at last improves plate shape, eliminates yield point elongation, crimping machine 16 packings are curled into product, can reach 780～1180MPa through its final tensile strength of product after the above-mentioned art breading.
Be noted that above enumerate only for a specific embodiment of the present invention, obviously the invention is not restricted to above embodiment, many similar variations are arranged thereupon.If those skilled in the art all should belong to protection scope of the present invention from all distortion that content disclosed by the invention directly derives or associates.
Both can be used for newly-built hot-dip aluminizing zinc production as the present invention, also can be used for transformation existing hot-dip aluminizing zinc production line.During newly-built hot-dip aluminizing zinc production line, the aerosol quickly cooling device is set above zinc aluminum pot, and behind cooling tower, builds the overaging stove.When transforming existing hot-dip coating aluminium-zinc alloy production line, jet fast cold section of zinc pot top is transformed into the aerosol rapid chilling section, the overaging stove can adopt bell furnace to carry out overaging and handle.
Claims (7)
1. the device of a super-strong belt steel hot-dip aluminizing zinc comprises the Abrollhaspel (1) that connects successively, pickler (2), preceding kink (3), annealing furnace (4), quickly cooling device (8), overaging stove (11), back kink (14), levelling machine (15), reeling machine (16) is characterized in that also comprising:
One zinc aluminum pot (6), ccontaining aluminium-zinc alloy liquid in it, described zinc aluminum pot (6) is located between annealing furnace (4) and the quickly cooling device (8);
At least one cool wind box (10) is located between quickly cooling device (8) and the overaging stove (11);
One granulating unit (12) and a drying unit (13) are located between overaging stove (11) and the back kink (14).
2. the device of super-strong belt steel hot-dip aluminizing zinc as claimed in claim 1 is characterized in that: described cool wind box (10) is two pairs.
3. the device of super-strong belt steel hot-dip aluminizing zinc as claimed in claim 1 or 2 is characterized in that: the ingress of described quickly cooling device (8) is provided with a lower sealing device (7), and the exit is provided with a discharge equipment (9).
4. the device of super-strong belt steel hot-dip aluminizing zinc as claimed in claim 3 is characterized in that: a stove nose (5) is equipped with in the exit of described annealing furnace (4), and stove nose (5) stretches in the aluminium-zinc alloy liquation of zinc aluminum pot (6).
5. the device of super-strong belt steel hot-dip aluminizing zinc as claimed in claim 3 is characterized in that: described quickly cooling device (8) is the aerosol quickly cooling device.
6. the complete processing of a super-strong belt steel hot-dip aluminizing zinc, it is characterized in that: may further comprise the steps: the band steel is via Abrollhaspel (1), pickling equipment (2), enter annealing furnace (4) behind the preceding kink (3), in annealing furnace (4), be heated to 800～870 ℃ and keep for some time, then slowly be cooled to enter after 550～670 ℃ 570～650 ℃ zinc aluminum pot (6), go out behind the zinc aluminum pot (6) through quick cooling, speed of cooling is at 100～350 ℃/s, make band steel behind the hot-dip aluminizing zinc reach the purpose of phase transformation strengthening, pass through follow-up cooling subsequently, when the band steel arrives 250～300 ℃, carry out overaging and handle, Water Quenching, polishing is handled.
7. the complete processing of super-strong belt steel hot-dip aluminizing zinc as claimed in claim 6 is characterized in that: described go out behind the zinc aluminum pot (6) through the aerosol that is cooled to fast cool off fast.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100344723A CN101532118B (en) | 2008-03-11 | 2008-03-11 | Device for hot-dip coating Al-Zn (aluminum-zincic) on super high-strength band steel and processing technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100344723A CN101532118B (en) | 2008-03-11 | 2008-03-11 | Device for hot-dip coating Al-Zn (aluminum-zincic) on super high-strength band steel and processing technology |
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| CN101532118A true CN101532118A (en) | 2009-09-16 |
| CN101532118B CN101532118B (en) | 2010-10-13 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816986A (en) * | 2011-06-10 | 2012-12-12 | 宝山钢铁股份有限公司 | Strip steel continuous hot galvanizing method |
| CN103397290A (en) * | 2013-08-01 | 2013-11-20 | 首钢总公司 | Method for eliminating black transverse striation defects on surface of zinc-plated sheet |
| CN103540885A (en) * | 2013-09-30 | 2014-01-29 | 河北钢铁股份有限公司唐山分公司 | Energy saving device and method of galvanized pot |
| CN103993149A (en) * | 2014-05-21 | 2014-08-20 | 攀钢集团攀枝花钢铁研究院有限公司 | Cold rolled steel plate and preparation method of cold rolled steel plate as well as hot-dip aluminum-zinc alloy steel plate and preparation method of hot-dip aluminum-zinc alloy steel plate |
| CN104531975A (en) * | 2014-12-06 | 2015-04-22 | 苏州欣航微电子有限公司 | Electric bicycle flywheel quenching coating apparatus |
| CN105063337A (en) * | 2015-08-10 | 2015-11-18 | 莱芜市旭鸣高强钢有限公司 | Integrated high-strength metal board thermal treatment device and process |
| CN106661706A (en) * | 2014-07-03 | 2017-05-10 | 安赛乐米塔尔公司 | Multipurpose processing line for heat treating and hot dip coating a steel strip |
| CN106967940A (en) * | 2017-05-02 | 2017-07-21 | 贵州理工学院 | A kind of method and device for preparing arc profile iron |
| CN108480417A (en) * | 2018-02-01 | 2018-09-04 | 日照宝华新材料有限公司 | Continuous producing line, which is plated, based on thin slab continuous casting and rolling hot radical raw material and acid produces method of the 600g zinc layers without zinc flower hot-galvanized plate |
| CN108796420A (en) * | 2018-08-08 | 2018-11-13 | 合肥禾松信息科技有限公司 | A kind of galvanized steel sheet surface treatment process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1288322A1 (en) * | 2001-08-29 | 2003-03-05 | Sidmar N.V. | An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained |
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2008
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816986A (en) * | 2011-06-10 | 2012-12-12 | 宝山钢铁股份有限公司 | Strip steel continuous hot galvanizing method |
| CN103397290A (en) * | 2013-08-01 | 2013-11-20 | 首钢总公司 | Method for eliminating black transverse striation defects on surface of zinc-plated sheet |
| CN103397290B (en) * | 2013-08-01 | 2015-09-30 | 首钢总公司 | A kind of method eliminating galvanized sheet surface black band defect |
| CN103540885A (en) * | 2013-09-30 | 2014-01-29 | 河北钢铁股份有限公司唐山分公司 | Energy saving device and method of galvanized pot |
| CN103993149A (en) * | 2014-05-21 | 2014-08-20 | 攀钢集团攀枝花钢铁研究院有限公司 | Cold rolled steel plate and preparation method of cold rolled steel plate as well as hot-dip aluminum-zinc alloy steel plate and preparation method of hot-dip aluminum-zinc alloy steel plate |
| CN103993149B (en) * | 2014-05-21 | 2016-06-15 | 攀钢集团攀枝花钢铁研究院有限公司 | Cold-rolled steel sheet and its preparation method and hot-dip coating aluminium-zinc alloy steel plate and its preparation method |
| CN106661706B (en) * | 2014-07-03 | 2019-04-26 | 安赛乐米塔尔公司 | Multipurpose for carrying out heat treatment and hot dip coating to steel band handles line |
| US10407751B2 (en) | 2014-07-03 | 2019-09-10 | Arcelormittal | Multipurpose processing line for heat treating and hot dip coating a steel strip |
| CN106661706A (en) * | 2014-07-03 | 2017-05-10 | 安赛乐米塔尔公司 | Multipurpose processing line for heat treating and hot dip coating a steel strip |
| CN104531975A (en) * | 2014-12-06 | 2015-04-22 | 苏州欣航微电子有限公司 | Electric bicycle flywheel quenching coating apparatus |
| CN105063337B (en) * | 2015-08-10 | 2017-10-27 | 莱芜市旭鸣高强钢有限公司 | Integrated high tensile metal sheet material annealing device and Technology for Heating Processing |
| CN105063337A (en) * | 2015-08-10 | 2015-11-18 | 莱芜市旭鸣高强钢有限公司 | Integrated high-strength metal board thermal treatment device and process |
| CN106967940A (en) * | 2017-05-02 | 2017-07-21 | 贵州理工学院 | A kind of method and device for preparing arc profile iron |
| CN106967940B (en) * | 2017-05-02 | 2023-05-30 | 贵州理工学院 | Method and device for preparing arc-shaped special-shaped steel |
| CN108480417A (en) * | 2018-02-01 | 2018-09-04 | 日照宝华新材料有限公司 | Continuous producing line, which is plated, based on thin slab continuous casting and rolling hot radical raw material and acid produces method of the 600g zinc layers without zinc flower hot-galvanized plate |
| CN108480417B (en) * | 2018-02-01 | 2021-04-13 | 日照宝华新材料有限公司 | Method for producing 600g zinc layer non-spangle hot galvanized plate based on thin slab continuous casting and rolling hot base raw material and acid plating continuous production line |
| CN108796420A (en) * | 2018-08-08 | 2018-11-13 | 合肥禾松信息科技有限公司 | A kind of galvanized steel sheet surface treatment process |
| CN108796420B (en) * | 2018-08-08 | 2020-01-14 | 重庆中会表面处理有限公司 | Galvanized steel sheet surface treatment process |
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| CN101532118B (en) | 2010-10-13 |
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