CN206009409U - A kind of pickling and cold-rolling Unit erriger of cold-rolled products - Google Patents
A kind of pickling and cold-rolling Unit erriger of cold-rolled products Download PDFInfo
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- CN206009409U CN206009409U CN201620513518.XU CN201620513518U CN206009409U CN 206009409 U CN206009409 U CN 206009409U CN 201620513518 U CN201620513518 U CN 201620513518U CN 206009409 U CN206009409 U CN 206009409U
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Abstract
The utility model is related to cold rolling field, the pickling and cold-rolling Unit erriger of specially a kind of cold-rolled products.Pickling and cold-rolling Unit erriger is set gradually on strip traffic direction：Uncoiler, welding machine, entry loop, stretching descaling mill, acid cleaning process section, middle kink, end trimming shears, outlet looping, jockey pulley, milling train, flying shear, coiling machine, jockey pulley is set along strip traffic direction between stretching descaling mill, acid cleaning process section, jockey pulley is set between outlet looping, milling train along strip traffic direction.The utility model is provided for cold rolling each kind dimension control improves direction, to each unit product size precision controlling main points adjustment after new varieties dimension control and process optimization, with good directive significance.Also, according to the analysis to affecting product size precision factor, reference is provided for galvanizing production dimension control.
Description
Technical field
The utility model is related to cold rolling field, the pickling and cold-rolling Unit erriger of specially a kind of cold-rolled products.
Background technology
The application of domestic cold-reduced sheet at present is in the majority with automobile industry and household electric appliances, the application of automobile industry with deep-draw and with
Based on upper rank and high-strength steel.Higher to the surface of steel, strip shape quality, performance and dimension precision requirement.Cold-reduced sheet strikes out
After shape, general thickness of slab will change, and lower thickness rate crosses intensity and the use that senior general directly affects stamping parts；And if steel
The gap of diel and stamping parts is easily affected when the thickness and precision deviation of plate is bigger, during easily causing punch forming
Tension or compression are excessive and cause material transition thinning, local buckling and produce the defects such as drawing crack or corrugation, to the mould longevity
Life and stamping parts qualification rate are into affecting greatly.Cold-rolled products width accuracy is related to the stock utilization of all users, shadow
Ring the raw material use cost of user；For automobile and household appliances use user, diel is tighter to strip width specification requirement
Lattice, the sheet material of usually more than 5mm precision will be unable to use or cause greatly improving for punching press scrappage.So, all types of user is all
Higher requirement is proposed to the dimensional accuracy of cold-rolled products.
In recent years, being substantially improved with superior automobile plate, appliance plate description and yield, product size precision
User's complaint and objection amount also roll up therewith, and the top grade user such as Beijing modern times just will be produced at the beginning of start with our factory cooperation
The dimensional accuracy of product is proposed as a standard；In addition, only 1 year 09 year, the product chi that the user such as Beijing modern times, Huachen proposes
Very little precision objection and complaint amount already exceed more than 1200 tons, have had a strong impact on the use of user, cause larger cost allowance.
Thus it is guaranteed that all cold-rolled products especially superior automobile plate, the dimensional accuracy of household electrical appliances panel products, become in the urgent need to address
Problem.
Utility model content
The purpose of this utility model is the pickling and cold-rolling Unit erriger for providing a kind of cold-rolled products, is cold rolling each kind chi
Very little precision controlling is provided improves direction, to each unit product size precision control after new varieties dimension control and process optimization
Main points adjustment processed, with good directive significance.Also, according to the analysis to affecting product size precision factor, it is zinc-plated product
Product dimension control provides reference.
The technical solution of the utility model is：
A kind of pickling and cold-rolling Unit erriger of cold-rolled products, pickling and cold-rolling Unit erriger are set on strip traffic direction successively
Put：Uncoiler, welding machine, entry loop, stretching descaling mill, acid cleaning process section, middle kink, end trimming shears, outlet looping, tension force
Roller, milling train, flying shear, coiling machine, arrange jockey pulley, outlet along strip traffic direction between stretching descaling mill, acid cleaning process section
Jockey pulley is set between kink, milling train along strip traffic direction.
The pickling and cold-rolling Unit erriger of described cold-rolled products, welding machine adopt laser welder, and pickling is using injecting type turbulent flow
Pickling machine, milling train select five frames, 6 roller UCM milling trains, coiling machine to adopt Carronsel coiling machines.
The continuous annealing unit of described cold-rolled products, the end trimming shears positioned at strip outlet section adopt circle shear.
Advantage of the present utility model and beneficial effect are：
1st, before and after the utility model thickness and precision improves, cold-rolled products thickness and precision is significantly improved, and original product thickness is thinning
3～5%, after improvement, product thickness precision reaches ± 0.5% to rate, has reached superior automobile plate thickness required precision.
2nd, before and after the utility model width accuracy improves, cold-rolled products width accuracy is significantly improved, original product width accuracy
Rate product width precision after 5～7.5mm, improvement is averagely can be controlled in 0～4mm, for deep-draw series of products are automobile face
The width accuracy of plate normal steels is can be controlled in 0～3mm, has been reached superior automobile plate thickness required precision, and has been reached which
His cold rolling mill continuous annealing unit trimming precision.
3rd, according to statistics, before cold-rolled products dimensional accuracy optimizes, the cold-rolled products lumber recovery of cold-rolled products is 94.03%,
After optimization, cold-rolled products lumber recovery is 94.21%, improves 0.18%.According to Finance Department's analyze data, lumber recovery is often improved
0.1%, the benefit that can be brought is 2 yuan/ton.So width accuracy improves about 3,420,000 yuan of lumber recovery benefit after optimizing.
4th, after dimension control research project is implemented, dimensional accuracy objection and the user of cold-rolled products have substantially been prevented
It is good that complaint, especially Automobile Plate and appliance plate user have given to our factory product thickness precision controlling and width accuracy control
Comment, user's using effect is good, and product size precision controlling is relatively stable, improves user's punching press lumber recovery, and certain
The service life of diel is improve in degree.Achieving objection cost reduces and good social benefit.
Description of the drawings
Fig. 1 is the utility model pickling and cold-rolling Unit erriger schematic diagram.In figure, 10 uncoilers；11 welding machines；12 entrances are lived
Set；13 outlet loopings；14 middle kinks；15 stretching descaling mills；16 acid cleaning process sections；17 end trimming shears；18 jockey pulleys；19 milling trains；
20 flying shears；21 coiling machines.
Specific embodiment
In specific implementation process, with steel grade product, there is a certain degree of fluctuation in quality to raw material material, and such case is given
The dimension control of cold rolling process product and analysis bring difficulty, so needing to deposit the fluctuation of this material quality as one kind
Error, be dissolved into cold rolling finished product dimensional accuracy control and improve in.Pickling and cold-rolling, continuous annealing unit process equipment pole
Which is complicated, does not have a production link all can impact the dimensional accuracy of product, and the production technology and matter for each kind
Amount control still optimizes and adjustment continuous, and the process system of product is managed in dynamic all the time, so technological factor and correlation
Dynamic change is to thickness, the effect tendency of width accuracy.
As shown in figure 1, the utility model pickling and cold-rolling Unit erriger, sets gradually on strip traffic direction：Uncoiler
10th, welding machine 11, entry loop 12, stretching descaling mill 15, acid cleaning process section 16, middle kink 14, end trimming shears 17, outlet looping
13rd, jockey pulley 18, milling train 19, flying shear 20, coiling machine 21, along strip operation side between stretching descaling mill 15, acid cleaning process section 16
Jockey pulley is set up, jockey pulley 18 is set between outlet looping 13, milling train 19 along strip traffic direction.
Pickling portal capabilities are 2051081 tons, and milling train outlet yield is 1969000 tons.Maximum pickling speed 250m/min,
Milling train maximum mill speed is 1650m/min., using German mibach laser welder, welding quality is good for welding machine；Pickling is adopted
The injecting type turbulence acid dip of Mitsubishi heavy industry design, pickling quality is high, energy conservation and consumption reduction effects are good；FDAC selected by milling train
Five frames, the 6 roller UCM milling trains of company's design, can achieve big pressure and stable rolling, and Strip Shape Control and thickness control accuracy are high；Adopt
Use Carronsel coiling machines, flexible operation.Milling train exit design has surface quality inspection desk, to adapt to the life of high quality of products
Produce.
1st, the mill milling operation analysis of Influential Factors thinning to thickness
Due to using 5 frame, six roller UCM milling trains, rolling thickness precision is higher.Logical after mill milling operation
Volume thickness fluctuation is less, and thickness and precision rate is order thickness ± 0.4%, and thickness and precision standard deviation is 0.00196.According to actual point
Analysis, within usual mill milling thickness and precision rate is the 0.7% of order thickness, it is seen that the product thickness precision after rolling is higher,
So the impact thinning on the thickness of automobile board finished product of mill milling operation is negligible.
2nd, impact analysis of the circle shear shear precision to width accuracy
The product size precision of pickling and cold-rolling unit is mainly determined by the several parts of raw material, acid cleaning process and rolling mill practice.
As current cold-rolled products are in pickling and cold-rolling unit trimming, so beginning to affect final cold rolling from pickling and cold-rolling unit operation
The dimensional accuracy of finished product.So, from the beginning of pickling and cold-rolling unit is controlled from disk sheared edge, until this segment process that rolling terminates
Control interval, existing to affect the factor of product size precision.
The shear precision of circle shear determines its precision according to the explanation of reference device precision and live actual tracking data analysis
0～1mm is can reach, it is relatively stable to cut shear precision, without exceeding equipment setting accuracy scope 0～1mm situations.Then through cutting of circle shear
Precision is cut as a tolerable error term of analysis width accuracy, is not individually analyzed, but is unified to be grouped into and roll
In the range of the precision fluctuation of machine drawing down amount.
3rd, the impact analysis of raw material material and Mill rolling technics to width accuracy
During mill milling, the tension force distribution of each frame is important process control parameter in the operation of rolling.Due to milling train
Tension parameterses set with design steel grade big class as one-to-one relationship, i.e., the operation of rolling tension force per class steel grade is calmly
Value, its are changeless factor to the influence degree that product is rolled.So thinking, rolling tensile force parameter and reality are controlled
Impact to product width can be a constant factor long-term existence, can be substituted by steel grade, do not give list during analysis
Analysis is solely proposed.
Data are related to according to raw material material, for example：The each chemical composition of raw material, raw material intensity；Mill rolling technics, for example：
Reduction ratio, tension force proportioning, mill speed；Comprehensive multi-party influence factor carries out regression analysis.By to many of all kinds of influence factors
Secondary regression analysis, and Key Influential Factors are screened, selecting affects the key factor of pickling and cold-rolling unit width accuracy control.
Knowable to above-mentioned regression analysis, raw material intensity is had a significant impact to the drawing down amount of pickling and cold-rolling unit, and by raw material
Intensity and product order width determine the tension force parameter that milling train is selected, and do not embody then tension data in regression equation.Roll
Machine reduction ratio and customer specification have significant impact to pickling and cold-rolling machine set product drawing down measurer, in the certain situation of raw material intensity
It is lower that they determine product finally in the drawing down amount of pickling and cold-rolling unit.According to analysis drawing of the carbon equivalent between 0.07～0.1
Narrow amount is more about in 3～6mm；Drawing down amount of the carbon equivalent between 0.15～0.3 is about between 0～2；For low carbon high-strength steel is produced
Product, as intensity is high, carbon equivalent is high, and reduction ratio is little, so drawing down amount is almost nil.
For automobile and household electric appliances user, the use specification of diel is certain, that is, grow × a width of definite value.Due to
The raising that product is controlled to existing product thickness and precision, current supply of material product thickness is compared with the increasing for having certain ratio before project research
Plus, so increased the weight of supply of material product to a certain extent, that is, meeting the set materials specification of user and exemplar quantity
In the case of, can slightly improve order weight.According to calculating, such as by taking DC03 trade mark 1.5mm thickness specification products as an example, the former specification
The supply of material thickness actual value of product is 1.45～1.46mm, after thickness and precision improves, supply of material thickness and precision can reach 1.495～
1.505mm, i.e. thickness increase ratio about 2～3%, i.e. single-piece exemplar weight and can improve 2～3%, then calculate overall order
Weight will also improve 2～3%.
Embodiment result shows, after the enforcement of these measures, achieves following actual effect：
1st, the different demands that the utility model can be according to different user to dimensional accuracy, realize personalized dimensional accuracy design
With control, the doulbe-sides' victory of Social benefit and economic benefit is realized.
2nd, the data supporting that the utility model is analyzed according to regression equation, by set up rolling thickness model of compensation control and
Each unit kind, specification drawing down amount database, realize different cultivars, the precise control of specification product dimensional accuracy.
3rd, the utility model is effectively improved cold-rolled products dimensional accuracy, realizes stable dimensions precision controlling, meets all kinds of use
Family demand, especially automobile, the demand of appliance plate order user, improve potential size of order and user satisfaction, effectively improve
Cold-rolled products lumber recovery, reduces production cost, increases economic efficiency.
4th, before and after the utility model width accuracy improves, cold-rolled products width accuracy is significantly improved, original product width accuracy
Rate product width precision after 5～7.5mm, improvement is averagely can be controlled in 0～4mm, for deep-draw series of products are automobile face
The width accuracy of plate normal steels is can be controlled in 0～3mm, has been reached superior automobile plate thickness required precision, and has been reached which
His cold rolling mill continuous annealing unit trimming precision.
Claims (1)
1. the pickling and cold-rolling Unit erriger of a kind of cold-rolled products, it is characterised in that：Pickling and cold-rolling Unit erriger is in strip operation side
Set gradually upwards：Uncoiler, welding machine, entry loop, stretching descaling mill, acid cleaning process section, middle kink, end trimming shears, outlet
Kink, jockey pulley, milling train, flying shear, coiling machine, arrange along strip traffic direction between stretching descaling mill, acid cleaning process section and open
Power roller, arranges jockey pulley along strip traffic direction between outlet looping, milling train；
Welding machine adopts laser welder, pickling to adopt injecting type turbulence acid dip machine, milling train to select five frames, 6 roller UCM milling trains, coiling machine
Using Carronsel coiling machines；
The end trimming shears for being located at strip outlet section adopt circle shear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513518.XU CN206009409U (en) | 2016-05-31 | 2016-05-31 | A kind of pickling and cold-rolling Unit erriger of cold-rolled products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513518.XU CN206009409U (en) | 2016-05-31 | 2016-05-31 | A kind of pickling and cold-rolling Unit erriger of cold-rolled products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206009409U true CN206009409U (en) | 2017-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620513518.XU Expired - Fee Related CN206009409U (en) | 2016-05-31 | 2016-05-31 | A kind of pickling and cold-rolling Unit erriger of cold-rolled products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206009409U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486592A (en) * | 2018-05-30 | 2018-09-04 | 中冶南方工程技术有限公司 | A kind of strip pickling unit and method suitable for continuous and discontinuous form |
| CN108906888A (en) * | 2018-07-04 | 2018-11-30 | 山西太钢不锈钢股份有限公司 | Stainless-steel cold-rolling strip production equipment |
| CN110576047A (en) * | 2019-09-12 | 2019-12-17 | 湖南华菱涟钢薄板有限公司 | Control method and control system for full-automatic production of pickled plate by cold rolling unit |
| CN112139263A (en) * | 2019-06-27 | 2020-12-29 | 上海梅山钢铁股份有限公司 | Rapid threading method for cold rolling mill |
-
2016
- 2016-05-31 CN CN201620513518.XU patent/CN206009409U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486592A (en) * | 2018-05-30 | 2018-09-04 | 中冶南方工程技术有限公司 | A kind of strip pickling unit and method suitable for continuous and discontinuous form |
| CN108486592B (en) * | 2018-05-30 | 2023-10-27 | 中冶南方工程技术有限公司 | Strip steel pickling line and method suitable for continuous and discontinuous forms |
| CN108906888A (en) * | 2018-07-04 | 2018-11-30 | 山西太钢不锈钢股份有限公司 | Stainless-steel cold-rolling strip production equipment |
| CN112139263A (en) * | 2019-06-27 | 2020-12-29 | 上海梅山钢铁股份有限公司 | Rapid threading method for cold rolling mill |
| CN112139263B (en) * | 2019-06-27 | 2022-09-09 | 上海梅山钢铁股份有限公司 | Rapid threading method for cold rolling mill |
| CN110576047A (en) * | 2019-09-12 | 2019-12-17 | 湖南华菱涟钢薄板有限公司 | Control method and control system for full-automatic production of pickled plate by cold rolling unit |
| CN110576047B (en) * | 2019-09-12 | 2021-03-26 | 湖南华菱涟钢薄板有限公司 | Control method and control system for full-automatic production of pickled plate by cold rolling unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20170531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |