CN107962074A - A kind of stainless steel cold-rolled plate continuous process system and method - Google Patents
A kind of stainless steel cold-rolled plate continuous process system and method Download PDFInfo
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- CN107962074A CN107962074A CN201711259588.2A CN201711259588A CN107962074A CN 107962074 A CN107962074 A CN 107962074A CN 201711259588 A CN201711259588 A CN 201711259588A CN 107962074 A CN107962074 A CN 107962074A
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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
- B21B1/24—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 continuous or semi-continuous process
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Abstract
The invention discloses a kind of stainless steel cold-rolled plate continuous process system and method, stainless steel cold-rolled plate continuous process system includes at least black volume pickling unit, stainless steel blank examination paper rolling unit, annealing and pickling unit, and the black volume pickling unit, stainless steel blank examination paper rolling unit, annealing and pickling unit are sequentially connected with and form tandem mill together；Intermediate annealing section is not provided between black volume pickling unit, stainless steel blank examination paper rolling unit.Multiple processes such as black volume pickling and the rolling of stainless steel blank examination paper, annealing and pickling are linked together and form tandem mill, directly produce 2B/2D products, save the annealing of de-black volume, the allocation and transportation saved intermediate annealing, save inter process coil of strip, lumber recovery is improved, largely saves factory construction land used and construction investment.
Description
Technical field
The invention mainly relates to stainless steel sheet strip production technical field, and in particular to the black volume of stainless steel (surface band oxide skin
Stainless steel hot-rolling volume) pickling, blank（The stainless steel of non-scale after hot rolling, heat treatment pickling, referring to chinese national standard
The NO.1 plates being referred to as in 1D volumes of the abbreviation that the 6.6th article of GB-T4237-2007, or industry（Referring to Baoshan Iron ＆ Steel Co., Ltd
Company standard Q/BQB 4302-2009））What the processes such as rolling, cold plate annealing, cold plate pickling and surface finish were united
Continuous production unit and method.
Background technology
The black volume pickling of stainless steel, blank rolling, cold plate annealing, cold plate pickling and surface finish etc. are all ripe production works
Skill.Stainless steel hot-rolling is rolled up（Black volume）Iron scale is thicker, it is difficult go out to remove, nearly all stainless steel factory is all by black volume annealing and pickling
Line is as single production process, and the direct export trade of part acid-washed product, the good stainless steel blank examination paper of most pickling again arrive by handling
Rolling plant progress cold rolling is rolled thin.Cold rolling process is usually all using reversable mill rolling blank examination paper, single chassis reversable mill
Production capacity it is low, will usually configure more single chassis reversable mills for the higher factory of some production capacities, take up an area more investments
Greatly.Some factories were also attempting multi-frame endless rolling in recent years, according to 4 rack of unusual setting of product thickness specification
Or 5 rack.Cold-rolled steel coils after rolling transport to again cold-rolling pickling workshop annealed, the process such as pickling and finishing it is stainless to produce
Steel cold rolling 2B/2D surfaces（GB/T 3280-2007;EN 10088;JIS G4305）Product.From current public technology and reality
From the point of view of production status, annealing and pickling, the rolling of stainless steel blank examination paper and three production technologies of stainless steel cold belt annealing and pickling of black volume are all
It is separate process, only a small number of production plants link together the rolling of stainless steel blank examination paper and annealing and pickling technique, but do not have
The generation technique that black volume pickling and blank examination paper mill-annealed pickling are connected.
Because stainless steel output is low, Electrical Control Technology requires production high, arranged apart flexible, stainless steel hot-rolling volume（Black volume）
Product after pickling belongs to NO.1 plates, can be applicable in mass production 2B/2D tables with direct marketing and using no existing equipment
The economization production of face cold-rolled products.
101481778 B of Chinese patent CN disclose a kind of austenic stainless steel belt and its manufacture method, cold-rolling process
Flow is：Thin strap continuous casting blank → pickling → cold rolling → annealing → pickling → smooth → rip cutting → stainless steel product volume.Its raw material
Using continuous cast products, raw thickness 1mm~5mm, reduction ratio≤15% rolled after pickling, is rolled down to the product thicknesses of needs
Need secondary rolling process, it is impossible to which being once rolled down to needs finished product thickness, and the production process after its continuous casting material announced is common
Production process.
The production equipment of Chinese patent CN101844151B stainless steel strips of the same clan indian patent IN590DEL2010A
And its Discontinuous manufacture method, the Discontinuous manufacture method of stainless steel band a kind of is disclosed, in one or more unit first by heat
Roll black volume annealing, pickling and rolling and produce chill stainless-steel roll.Stainless steel chill volume is again by uncoiling on Article 2 production line
→ annealing → pickling → finishing → is batched.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of stainless steel cold-rolled plate continuous process system and method so that
The black volume of stainless steel after hot rolling process can produce 2B/2D stainless-steel cold-rolling products on a tinuous production, save
Factory floor, save plant investment and reduce production finished product.
The present invention be solve above-mentioned technical problem disclosed in technical solution be：
A kind of stainless steel cold-rolled plate continuous process system, it is characterised in that：Rolled including at least black volume pickling unit, stainless steel blank examination paper
Unit processed, annealing and pickling unit, the black volume pickling unit, stainless steel blank examination paper rolling unit, annealing and pickling unit are sequentially connected with
Tandem mill is formed together；Intermediate annealing section is not provided between black volume pickling unit, stainless steel blank examination paper rolling unit.
Further, coiling machine is set to coil into the coil of strip after uncoiling is handled again in the least significant end of tandem mill
Volume.
Further, the black volume pickling unit enters including black volume pickling section, two uncoilers, welding machine, tropical pickling
Mouth kink, two uncoilers are set up in parallel and the coil of strip head end after uncoiling is docked with welding machine front end；Coil of strip after welder
Head end is docked with tropical pickling entry loop, and tropical pickling entry loop is docked with black volume pickling section；The black volume pickling section is extremely
It is few to include that the descaling bath of pickle is taken up.
Further, inlet of rolling mill kink is set between the stainless steel blank examination paper rolling unit and black volume pickling unit, no
Rust steel blank examination paper rolling machine set outlet sets gradually cleaning section and milling train outlet looping.
Further, annealing and pickling unit include dock successively cold plate annealing furnace, cold belt pickling section, cold plate annealing furnace with
The milling train outlet looping docking of stainless steel blank examination paper rolling unit, cold belt pickling section are docked with cold belt pickling outlet looping.
Further, planisher, straightening are also set gradually after annealing and pickling unit and checks that loop area collectively constitutes continuously
Unit.
Further, welding machine of the present invention is using the laser welder for meeting weld seam Direct Rolling；Black volume pickling section uses sulfuric acid
Pickling adds nitration mixture HF+HNO3 pickling patterns, and sulfuric acid washing is using 1 ~ 3 section of acid tank and is separately provided the circulatory system, sulfuric acid concentration according to
Secondary to successively decrease, nitration mixture section is using 2 ~ 4 sections of descaling baths and is separately provided the circulatory system, and nitration mixture pickling concentration is successively decreased successively.
Further, the black volume pickling section of the present invention is anterior sets straightening to break the mechanical dephosphorization equipment such as phosphorus, ball blast, can not also
Straightening is set to break the direct pickling of the mechanical black volume of dephosphorization equipment such as phosphorus, ball blast；With work between black volume pickling section and welding machine and tandem mill
Set connection, ensures that strip is not shut down in pickling section.
Further, stainless steel blank examination paper rolling unit in, tandem mill adopt for multi-frame combine roll, set 3 racks or
Rolled with upper spider.
Further, cold belt pickling section adds nitration mixture HF+HNO3 pickling patterns using neutral salt electrolysis, or using neutral salt
It is electrolysed other inorganic acid pickling patterns.Planisher uses two rollers or four-roller planisher, and planisher can be that Stand Mill can also
It is single chassis, sets withdrawal straightening machine further to improve band steel plate type behind planisher.Strip is rolled up by surface inspection into coiling machine
Take coiled.
A kind of continuous producing method using above-mentioned stainless steel cold-rolled plate continuous process system, it is characterised in that：By hot rolling
The black volume of stainless steel is sent directly into the black volume pickling unit inlet of tandem mill as raw material afterwards, and the black volume of stainless steel is successively after hot rolling
After tandem mill processing, final production goes out stainless-steel cold-rolling product and intermediate annealing process is not required；
When the first white skin coil of strip after using the black volume annealing and pickling of stainless steel after hot rolling is as raw material, the first white skin coil of strip is successively
After stainless steel blank examination paper rolls unit, annealing and pickling unit, smooth and straightening processing, 2B/2D stainless steel products are directly becoming.
Relative to the prior art, the present invention connects multiple processes such as black volume pickling and the rolling of stainless steel blank examination paper, annealing and pickling
Be connected together composition tandem mill, directly produces 2B/2D products, saves the annealing of de-black volume, saves intermediate annealing, saves inter process steel
The allocation and transportation of volume, improve lumber recovery, largely save factory construction land used and construction investment.The present invention can also adopt at the same time
The first white skin coil of strip after rolling up annealing and pickling by the use of hot-rolled black-skin needs not move through black volume pickling as raw material, the first white skin coil of strip
Section, directly by by the first white skin coil of strip by being directly entered tandem mill on-line rolling, annealing, pickling and finishing after black volume pickling section
Produce 2B/2D stainless steel products, it is not necessary to intermediate annealing.
Brief description of the drawings
Fig. 1 is the stainless steel cold-rolled plate continuous process system structure diagram implemented according to the present invention；Each attached drawing mark in figure
Note is described as follows：First uncoiler 1, the second uncoiler 2, welding machine 3, tropical pickling entry loop 4, black volume pickling section 5, roll
Machine entry loop 6, tandem mill 7, cleaning section 8, milling train outlet looping 9, cold plate annealing furnace 10, cold belt pickling section 11, cold belt pickling
Outlet looping 12, planisher 13, straightening and inspection loop area 14, coiling machine 15.
Specific embodiment
Below in conjunction with the accompanying drawings 1, stainless steel cold-rolled plate continuous process system of the present invention and method are further described.
In stainless steel cold-rolled plate continuous process system as shown in Figure 1, including the first uncoiler 1, the second uncoiler 2,
Welding machine 3, tropical pickling entry loop 4, black volume pickling section 5, inlet of rolling mill kink 6, tandem mill 7, cleaning section 8, milling train go out
Mouth kink 9, cold plate annealing furnace 10, cold belt pickling section 11, cold belt pickling outlet looping 12, planisher 13, straightening and inspection are lived
Cover area 14, coiling machine 15.
First uncoiler 1 and the second uncoiler 2 possess belt steel thickness 1mm ~ 8mm uncoiling abilities, take the lead magnetic tape trailer in welding machine 3
Place completes welding, good using laser welder weldquality, can cross tandem mill with Direct Rolling.Tropical pickling entry loop 4 is normal
In state is completely covered during production, set is put when strip welds to ensure that black 5 strip of volume pickling section is continuously run.Black volume pickling section 5
Using sulfuric acid washing plus nitration mixture HF+HNO3 pickling patterns, the pickling of sulfuric acid acid is using 1 ~ 3 section of acid tank and is separately provided the circulatory system,
Sulfuric acid concentration successively decreases successively, and nitration mixture section is using 2 ~ 4 sections of descaling baths and is separately provided the circulatory system, and nitration mixture pickling concentration is passed successively
Subtract.
Black volume pickling section 5 is anterior to set straightening to break the mechanical dephosphorization equipment such as phosphorus, ball blast, and it is less to remove most of iron scale
Pickling acid consumes.Straightening can not also be set to break the direct pickling of the mechanical black volume of dephosphorization equipment such as phosphorus, ball blast, pickling speed needs to reduce
Or acid tank length lengthens again.Inlet of rolling mill kink 6 be located at black volume pickling section 5 and tandem mill 7, between, ensure 7 roll change of tandem mill
When black 5 strip of volume pickling section continuously run.Tandem mill 7 needs to could be provided as 3 racks or more according to raw material and product specification
Machine frame rolling mill, strip removes surfactant emulsion liquid or ROLLING OIL by cleaning section 8 after rolling.Belt steel surface Residual oil is needed through clear after rolling
Wash the cleaning of section 8 to go divided by improve final finished surface quality, cleaning section 8 is rinsed using caustic dip or using high-pressure water heating.
Milling train outlet looping 9 ensures cold plate annealing furnace 10 and cold belt acid during mill roll between cleaning section 8 and cold plate annealing furnace 10
Strip in section 11 is washed not shut down.Using method is directly heated, the belt steel surface after heat treatment has one layer thin cold plate annealing furnace 10
Thin oxide-film with cold belt pickling section 11, it is necessary to be removed.Cold belt pickling section 11 adds nitration mixture HF+HNO3 pickling using neutral salt electrolysis
Mode, by controlling electric current, acid concentration and temperature etc. state modulator belt steel surface state.Strip passes through cold belt pickling after pickling
Outlet looping 12 enters planisher 13 and straightening and checks that loop area 14 carries out template and surface treatment, reaches belt steel surface
To the delivery requirements of 2B/2D surfaces.Cold belt pickling outlet looping 12 is arranged between cold belt pickling section 11 and planisher 13, ensures
Steel band is continuously run in cold plate annealing furnace 10 and cold belt pickling section 11 when mouthful shutting down.Last strip batches in rolls through coiling machine 15.
Claims (10)
- A kind of 1. stainless steel cold-rolled plate continuous process system, it is characterised in that：Including at least black volume pickling unit, stainless steel blank examination paper Unit, annealing and pickling unit are rolled, the black volume pickling unit, stainless steel blank examination paper rolling unit, annealing and pickling unit sequentially connect Be connected together composition tandem mill；Intermediate annealing section is not provided between black volume pickling unit, stainless steel blank examination paper rolling unit.
- 2. stainless steel cold-rolled plate continuous process system according to claim 1, it is characterised in that：In the most end of tandem mill End sets coiling machine to be batched again to the coil of strip after uncoiling is handled in rolls.
- 3. stainless steel cold-rolled plate continuous process system according to claim 1, it is characterised in that：The black volume pickling machine Group includes black volume pickling section, two uncoilers, welding machine, tropical pickling entry loop, and two uncoilers are set up in parallel and after uncoiling Coil of strip head end docked with welding machine front end；Coil of strip head end after welder is docked with tropical pickling entry loop, torrid zone acid Entry loop is washed to dock with black volume pickling section；The black volume pickling section includes at least the descaling bath that can take up pickle.
- 4. stainless steel cold-rolled plate continuous process system according to claim 1, it is characterised in that：The stainless steel blank examination paper rolls Inlet of rolling mill kink is set between unit processed and black volume pickling unit, and stainless steel blank examination paper rolling machine set outlet sets gradually cleaning section With milling train outlet looping.
- 5. stainless steel cold-rolled plate continuous process system according to claim 1, it is characterised in that：Annealing and pickling unit includes The cold plate annealing furnace that docks successively, cold belt pickling section, the milling train outlet looping of cold plate annealing furnace and stainless steel blank examination paper rolling unit Docking, cold belt pickling section are docked with cold belt pickling outlet looping.
- 6. stainless steel cold-rolled plate continuous process system according to claim 1, it is characterised in that：After annealing and pickling unit also Set gradually planisher, straightening and check that loop area collectively constitutes tandem mill.
- 7. stainless steel cold-rolled plate continuous process system according to claim 3, it is characterised in that：Black volume pickling section uses sulphur Pickling adds nitration mixture HF+HNO3 pickling patterns, and sulfuric acid washing is using 1 ~ 3 section of acid tank and is separately provided the circulatory system, sulfuric acid concentration Successively decrease successively, nitration mixture section is using 2 ~ 4 sections of descaling baths and is separately provided the circulatory system, and nitration mixture pickling concentration is successively decreased successively.
- 8. stainless steel cold-rolled plate continuous process system according to claim 1, it is characterised in that：Welding machine, which uses, meets weld seam The laser welder of Direct Rolling；Black volume pickling section is anterior to set straightening to break phosphorus, ball blast machinery dephosphorization equipment；Stainless steel blank examination paper rolls In unit, tandem mill is adopted to be rolled to be combined with multi-frame, sets the rolling of 3 racks or more rack；Planisher using two rollers or Four-roller planisher, planisher are Stand Mill or single chassis.
- 9. stainless steel cold-rolled plate continuous process system according to claim 5, it is characterised in that：During cold belt pickling section uses Property salt electrolysis plus nitration mixture HF+HNO3 pickling patterns, or using other inorganic acid pickling patterns outside neutral salt electrolysis HNO3.
- 10. a kind of continuous producing method using one of the claims 1-9 stainless steel cold-rolled plate continuous process systems, It is characterized in that：The black volume pickling unit inlet of tandem mill is sent directly into using the black volume of stainless steel after hot rolling as raw material, works as heat The black volume of rear stainless steel is rolled successively after tandem mill processing, and final production goes out stainless-steel cold-rolling product and intermediate annealing is not required Processing；When the first white skin coil of strip after using the black volume annealing and pickling of stainless steel after hot rolling is as raw material, the first white skin coil of strip is successively After stainless steel blank examination paper rolls unit, annealing and pickling unit, smooth and straightening processing, 2B/2D stainless steel products are directly becoming.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259588.2A CN107962074A (en) | 2017-12-04 | 2017-12-04 | A kind of stainless steel cold-rolled plate continuous process system and method |
| RU2020121159A RU2746876C1 (en) | 2017-12-04 | 2017-12-21 | System and method for continuous production of cold-rolled stainless steel sheets |
| PCT/CN2017/117772 WO2019109400A1 (en) | 2017-12-04 | 2017-12-21 | Continuous production system and method for stainless steel cold-rolled sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259588.2A CN107962074A (en) | 2017-12-04 | 2017-12-04 | A kind of stainless steel cold-rolled plate continuous process system and method |
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| CN107962074A true CN107962074A (en) | 2018-04-27 |
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| CN201711259588.2A Pending CN107962074A (en) | 2017-12-04 | 2017-12-04 | A kind of stainless steel cold-rolled plate continuous process system and method |
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| Country | Link |
|---|---|
| CN (1) | CN107962074A (en) |
| RU (1) | RU2746876C1 (en) |
| WO (1) | WO2019109400A1 (en) |
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| CN109530436A (en) * | 2018-12-11 | 2019-03-29 | 佛山市诚德新材料有限公司 | A kind of cold rolling process and stainless steel band of stainless steel band |
| CN110369508A (en) * | 2019-07-20 | 2019-10-25 | 张辰星 | A kind of stainless steel band apparatus for cold rolling |
| CN110538883A (en) * | 2019-09-20 | 2019-12-06 | 山东宏旺实业有限公司 | Steel strip processing technology and automatic production line thereof |
| CN112642877A (en) * | 2020-08-12 | 2021-04-13 | 杨勇 | One-step production process for stainless steel products from hot-rolled black skin to cold-rolled 2B or 2D plate surface |
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| CN116673335A (en) * | 2023-05-24 | 2023-09-01 | 邢台金逸金属制品有限公司 | Cold-rolled coiled sheet production molding system |
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| CN110369508B (en) * | 2019-07-20 | 2020-10-20 | 东阳市和宇金属材料有限公司 | Stainless steel strip cold rolling device |
| CN110369508A (en) * | 2019-07-20 | 2019-10-25 | 张辰星 | A kind of stainless steel band apparatus for cold rolling |
| CN110538883A (en) * | 2019-09-20 | 2019-12-06 | 山东宏旺实业有限公司 | Steel strip processing technology and automatic production line thereof |
| CN112642877A (en) * | 2020-08-12 | 2021-04-13 | 杨勇 | One-step production process for stainless steel products from hot-rolled black skin to cold-rolled 2B or 2D plate surface |
| CN114367537A (en) * | 2022-01-19 | 2022-04-19 | 山西太钢不锈钢股份有限公司 | Method for eliminating surface stripe defect of ultrapure ferrite stainless steel |
| CN114367537B (en) * | 2022-01-19 | 2023-07-14 | 山西太钢不锈钢股份有限公司 | Method for eliminating surface stripe defect of ultra-pure ferrite stainless steel |
| CN115318869A (en) * | 2022-07-12 | 2022-11-11 | 中冶南方工程技术有限公司 | Strip processing production line containing secondary rolling process and strip processing method |
| WO2024087517A1 (en) * | 2022-10-28 | 2024-05-02 | 中冶南方工程技术有限公司 | Non-oriented silicon steel full-continuous production system and method |
| CN116673335A (en) * | 2023-05-24 | 2023-09-01 | 邢台金逸金属制品有限公司 | Cold-rolled coiled sheet production molding system |
| CN116673335B (en) * | 2023-05-24 | 2023-11-21 | 邢台金逸金属制品有限公司 | Cold-rolled coiled sheet production molding system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019109400A1 (en) | 2019-06-13 |
| RU2746876C1 (en) | 2021-04-21 |
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