CN106756698A - A kind of hot dip galvanizing production process - Google Patents
A kind of hot dip galvanizing production process Download PDFInfo
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- CN106756698A CN106756698A CN201611019334.9A CN201611019334A CN106756698A CN 106756698 A CN106756698 A CN 106756698A CN 201611019334 A CN201611019334 A CN 201611019334A CN 106756698 A CN106756698 A CN 106756698A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
Abstract
The invention discloses a kind of hot dip galvanizing production process, raw material uncoiling, detection, cleaning, by welding machine and entry loop, then into annealing furnace, then raw material is carried out entering zinc pot after reheating and carries out hot dip；Afterwards cooling, smooth, anti-corrosion treatment, into outlet looping buffering after, oiling, shearing, winding etc..The present invention is reasonable in design, the advantages of processing cost is low, production efficiency is high；Seldom, scum silica frost reduces 20% to bottom ash, and coating adhesion is excellent in zinc pot, and coating corrosion resistance improves 2 times.
Description
Technical field
The invention belongs to Hot Galvanizing Technology field, more specifically, more particularly to a kind of hot dip galvanizing production process.
Background technology
It is zinc-plated be it is a kind of through frequently with economic and effective steel plate anti-corrosion method, it is zinc-plated after steel plate be widely used in building
Build, the industry such as light industry, automobile, farming, animal husbandry and fishery and business, such as building trade is mainly for the manufacture of etch-proof industrial and civilian build
Build roof boarding, roof grid etc.；Light industry manufactures appliance shell, household chimney, kitchen utensils etc. with it；Automobile industry is main
Corrosion resistant component etc. for manufacturing car；The freeze cutting that farming, animal husbandry and fishery are mainly used as grain storage and transportation, meat and aquatic products is used
Tool etc.；Business principally serves as accumulating, packing appliance of goods and materials etc..Galvanizing is due to process is simple and overlay coating tack
Fortunately it is most widely used in zincincation, galvanizing is exactly, by the zinc groove of sheet metal immersion melting, to make its surface adhesion one
Layer zinc.
The method of galvanizing is more, and production technology mainly has：Solvent method, Hui Linfa, Sendzimir method, match Lars method, change
Enter the Sendzimir method and U.S. steel connection method of type.Widely used at present is modified Sendzimir method, U.S. steel connection method.
The characteristics of follow-on Sendzimir method is scale-free heating, and an oxygen is differred primarily in that with former Sendzimir method
Change reduction furnace and make non-oxidation rapid heating furnace (NOF stoves) into, while surface decontamination, while heating-up temperature is improve, strip
The greasy dirt on surface is removed by burning, but is fallen by weak reducing atmosphere vaporization at high temperature, so not only maintains raw sheet
Surface, and Simplified flowsheet, reduce pollution, reduce consumption, have reached high yield, high-quality purpose.But, modified Senghi
Mil's method also has shortcoming, remain in grease it is a large amount of be mingled with after (dust etc.) bring non-oxidation preheating furnace into, grease volatilizees quickly,
But booty remains on belt steel surface, make coating adhesion poor.In order to solve this problem, the producer having in the last few years is in entrance
Section is additionally arranged prerinse or electrolytic cleaned facility, so that modified Sendzimir method technique is more perfect, product quality enters one
Step is improved.
China Baosteel 1# continuous galvanizing lines, Wuhan Iron and Steel Plant, climb steel and horse steel 1# continuous galvanizing lines employ modified Senghi
Mil's method.The product of U.S. steel connection method production is mainly used in high-grade car and high-grade household electric appliances, and investment is high, and Zong Cheng companies 1#
The product of hot galvanizing line be mainly be building trade service, therefore 1# galvanizings use modified Sendzimir method, equipment by
FPE companies of India manufacture.The continuous galvanizing line of modernization just develops towards multi-functional direction, and conventional continuous galvanizing line is not only
Pure zinc-plated or pure aluminized products can be produced, but also zinc aluminum alloy coating plate (GF) can be produced.With it is pure it is zinc-plated compare, these
Product has relatively thin coating (minimum up to 80g/m, two-sided), while also having following advantages：Anti-corrosive properties higher are higher
Temperature stability, plasticity is good, and coating character is good.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of galvanizing for proposing produces work
Skill.
To achieve the above object, the present invention provides following technical scheme：
A kind of hot dip galvanizing production process, comprises the following steps：
S1, qualified cold-rolled steel coils are transported on 1#, 2# entrance Saddle with steel roll by traveling crane, and 1#, 2# entrance coil of strip are small respectively
Be sent to coil of strip on entrance saddle from transport vehicle for steel coils by car, until being sent to 1#, 2# uncoiler；
S2, before coil of strip is attached on uncoiler, by 1#, 2# coil of strip centralising device automatic measurement coil of strip external diameter and width,
And automatic centering of the coil of strip on uncoiler is completed simultaneously in upper volume；
S3, during uncoiling, when detector detects the head of strip, strip steel head is carried out by threading guide plate
It is oriented to, is then fed into pinch roll and coil opener, strip steel head enters double clippings after aligning, and topping, afterbody are overproof and become
Shape position, excision waste material is processed by waste disposal system collection；The afterbody of strip steel head and previous coil of strip after shearing is by welding
Machine welds together；Dual channel system is used from uncoiler to welding machine, is continuously supplied in order to raw material；
After S4, strip trimming, into entrance cleaning section, cleaning section is arranged on after welding machine, and the strip after cleaning is through drying
The moisture content of device heating removal belt steel surface；
Enter the vertical kink of entrance through idler roller and deviation rectification roller after S5, strip cleaning, before vertical kink is arranged on annealing furnace,
So that in welding, kink can provide the strip of sufficient length to ensure the continuous operation of annealing furnace and zinc-plated operation；
S6, dry strip enter annealing furnace after deviation rectification roller and idler roller, and strip reaches zinc-plated through L-type anneal
Required temperature, after adjusting tension force by hot idler roller, then introduces zinc pot by zinc nose；The zinc liquid of melting is attached to strip table
Face, its adhesion amount is automatically adjusted to required coating weight by coating control system；
Air cooling system Slow cooling is first passed through after S7, strip steel Zn-plating, then 60 DEG C is cool below by quenching tank
Temperature, after strip after cooling is through the deviation rectification roller and deflection roll of belt tension meter, carry out quality of coating measurement；
Strip after S8, measurement carries out smooth and tension straingtening into four-roller type polishing machine and six-roll type seven-roll Abramsen machine,
To improve mechanical performance, profile and the surface quality of strip；Wherein the maximum elongation percentage of polishing machine is 2%, seven-roll Abramsen machine
Maximum elongation percentage is 2%, idler roller is provided with before and after polishing machine and seven-roll Abramsen machine, to meet polishing machine and seven-roll Abramsen machine pair
The need for tension force；
S9, due to using wet finishing and tension straingtening technique, wiping arrangement is configured with behind, strip after extracting enters
Drier, belt steel surface is dried and by entering surface processing device after idler roller change tension force；The device is blunt using chromate
Change is processed, and the systemic effect is to prevent galvanized steel surface from giving birth to white rust；
Strip after S10, Passivation Treatment enters outlet looping through drier, slewing rollers, band bracing members etc., outlet looping
Effect is that have enough buffer time to ensure the continuous production of process section, band when outlet shutdown or reduction of speed, shearing or acceleration and deceleration
Steel is carried out bundling, excision weld metal zone and the test sampling of steel band by Flying Shears by Exit as needed after going out kink, and cuts off waste material
Collected by waste collection systems and post-processed；
S11, strip are coiled into the coil of strip of constant weight by pull reel, are finally rolled up from coiling machine by outlet coil car
Removed on cylinder, be transported at weighing device and baling press and pack, weigh, then hung oneself from Saddle with steel roll by driven a vehicle and transport to finished product fortune
On defeated straddle carrier, it is transported to warehouse for finished product and stacks or enter lower road production process.
Preferably, the cleaning section includes alkali cleaning, heat rinsing and strip drier, and this section is used for washing away rolling for belt steel surface
Liquefaction and iron powder.
Preferably, the annealing furnace be L-type non-oxidation continuous annealing furnace, including preheating section (PH) and non-oxidation section
(NOF), radiation pipeline section (RTF), spray cooling section (JCF), preheating section and non-oxidation section are vertical, radiation pipeline section (RTF), injection
Cooling section (JCF) is horizontal；Annealing furnace ability：35t/h, 0.35 × 1250mm of strip steel specification, process speed：170m/min.
Preferably, the seven-roll Abramsen machine is to rectify seven-roll Abramsen machine system six-roll type, with 3 sets bending rolls, recurvation roller and strong
Straight roller case, working roll and backing roll are not driven.
Technique effect of the invention and advantage：
1) automatic measurement coil of strip external diameter and width, to carry out coil of strip automatic centering on uncoiler；
2) double clipping excision strip Out-gauge and crushed elements；
3) ROLLING OIL, iron powder of entrance cleaning section removal belt steel surface etc., it is ensured that product quality；
4) continuous annealing is carried out to strip using L-type continuous annealing furnace, annealing furnace is by preheating and non-oxidation section, radiant tube
Section, spray cooling section composition；
5) it be 0~180t to use zinc pot ability, and zinc pot external dimensions：6255 (length) × 5250 (width) × 3625 (depth)
Mm, and the online replacing of the pot of the induction heating ceramic zinc with liquid level sensor, for the change of product coating species；
6) measurement apparatus of coating weight are provided with, coating weight Dynamic Closed Loop Control is realized；
7) the strip cooling after plating, in addition to air-cooled, is also equipped with quenching tank, flexible adjustment；
8) seven-roll Abramsen machine is rectified using wet type finishing and six-roll type, improves strip mechanical performance, profile and surface quality；
9) it is provided with pure Zinc Deposit and is passivated (1CGL) device with protective coating surface；
10) bundling is carried out using flying shear；
11) entrance and exit in production line is all provided with vertical loop and enters row buffering and regulation to strip, is conducive to whole
The continuous coordination production of bar production line.
In sum：The present invention is reasonable in design, the advantages of processing cost is low, production efficiency is high；Bottom ash seldom, is floated in zinc pot
Slag reduces 20%, and coating adhesion is excellent, and coating corrosion resistance improves 2 times.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.Based on the embodiment in the present invention, those of ordinary skill in the art are not before creative work is made
The every other embodiment for being obtained is put, the scope of protection of the invention is belonged to.
A kind of hot dip galvanizing production process, comprises the following steps：
S1, qualified cold-rolled steel coils are transported on 1#, 2# entrance Saddle with steel roll by traveling crane, and 1#, 2# entrance coil of strip are small respectively
Be sent to coil of strip on entrance saddle from transport vehicle for steel coils by car, until being sent to 1#, 2# uncoiler；
S2, before coil of strip is attached on uncoiler, by 1#, 2# coil of strip centralising device automatic measurement coil of strip external diameter and width,
And automatic centering of the coil of strip on uncoiler is completed simultaneously in upper volume；
S3, during uncoiling, when detector detects the head of strip, strip steel head is carried out by threading guide plate
It is oriented to, is then fed into pinch roll and coil opener, strip steel head enters double clippings after aligning, and topping, afterbody are overproof and become
Shape position, excision waste material is processed by waste disposal system collection；The afterbody of strip steel head and previous coil of strip after shearing is by welding
Machine welds together；Dual channel system is used from uncoiler to welding machine, is continuously supplied in order to raw material；
After S4, strip trimming, into entrance cleaning section, cleaning section is arranged on after welding machine, and the strip after cleaning is through drying
The moisture content of device heating removal belt steel surface；
Enter the vertical kink of entrance through idler roller and deviation rectification roller after S5, strip cleaning, before vertical kink is arranged on annealing furnace,
So that in welding, kink can provide the strip of sufficient length to ensure the continuous operation of annealing furnace and zinc-plated operation；
S6, dry strip enter annealing furnace after deviation rectification roller and idler roller, and strip reaches zinc-plated through L-type anneal
Required temperature, after adjusting tension force by hot idler roller, then introduces zinc pot by zinc nose；The zinc liquid of melting is attached to strip table
Face, its adhesion amount is automatically adjusted to required coating weight by coating control system；
Air cooling system Slow cooling is first passed through after S7, strip steel Zn-plating, then 60 DEG C is cool below by quenching tank
Temperature, after strip after cooling is through the deviation rectification roller and deflection roll of belt tension meter, carry out quality of coating measurement；
Strip after S8, measurement carries out smooth and tension straingtening into four-roller type polishing machine and six-roll type seven-roll Abramsen machine,
To improve mechanical performance, profile and the surface quality of strip；Wherein the maximum elongation percentage of polishing machine is 2%, seven-roll Abramsen machine
Maximum elongation percentage is 2%, idler roller is provided with before and after polishing machine and seven-roll Abramsen machine, to meet polishing machine and seven-roll Abramsen machine pair
The need for tension force；
S9, due to using wet finishing and tension straingtening technique, wiping arrangement is configured with behind, strip after extracting enters
Drier, belt steel surface is dried and by entering surface processing device after idler roller change tension force；The device is blunt using chromate
Change is processed, and the systemic effect is to prevent galvanized steel surface from giving birth to white rust；
Strip after S10, Passivation Treatment enters outlet looping through drier, slewing rollers, band bracing members etc., outlet looping
Effect is that have enough buffer time to ensure the continuous production of process section, band when outlet shutdown or reduction of speed, shearing or acceleration and deceleration
Steel is carried out bundling, excision weld metal zone and the test sampling of steel band by Flying Shears by Exit as needed after going out kink, and cuts off waste material
Collected by waste collection systems and post-processed；
S11, strip are coiled into the coil of strip of constant weight by pull reel, are finally rolled up from coiling machine by outlet coil car
Removed on cylinder, be transported at weighing device and baling press and pack, weigh, then hung oneself from Saddle with steel roll by driven a vehicle and transport to finished product fortune
On defeated straddle carrier, it is transported to warehouse for finished product and stacks or enter lower road production process.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent carried out to which part technical characteristic,
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (4)
1. a kind of hot dip galvanizing production process, it is characterised in that comprise the following steps：
S1, qualified cold-rolled steel coils are transported on 1#, 2# entrance Saddle with steel roll by traveling crane, respectively 1#, 2# entrance coil car from
Coil of strip is sent on entrance saddle on transport vehicle for steel coils, until being sent to 1#, 2# uncoiler；
S2, before coil of strip is attached on uncoiler, by 1#, 2# coil of strip centralising device automatic measurement coil of strip external diameter and width, and
Upper volume completes automatic centering of the coil of strip on uncoiler simultaneously；
S3, during uncoiling, when detector detects the head of strip, strip steel head is led by threading guide plate
To, pinch roll and coil opener are then fed into, strip steel head enters double clippings after aligning, and topping, afterbody are overproof and deform
Position, excision waste material is processed by waste disposal system collection；The afterbody of strip steel head and previous coil of strip after shearing is by bonding machine
Weld together；Dual channel system is used from uncoiler to welding machine, is continuously supplied in order to raw material；
After S4, strip trimming, into entrance cleaning section, cleaning section is arranged on after welding machine, and the strip after cleaning adds through drier
The moisture content of heat abstraction belt steel surface；
Enter the vertical kink of entrance through idler roller and deviation rectification roller after S5, strip cleaning, before vertical kink is arranged on annealing furnace, so as to
In welding, kink can provide the strip of sufficient length to ensure the continuous operation of annealing furnace and zinc-plated operation；
S6, dry strip enter annealing furnace after deviation rectification roller and idler roller, and strip reaches zinc-plated required through L-type anneal
The temperature wanted, after adjusting tension force by hot idler roller, then introduces zinc pot by zinc nose；The zinc liquid of melting is attached to belt steel surface, its
Adhesion amount is automatically adjusted to required coating weight by coating control system；
Air cooling system Slow cooling is first passed through after S7, strip steel Zn-plating, 60 DEG C of temperature is then cool below by quenching tank
Spend, after the strip after cooling is through the deviation rectification roller and deflection roll of belt tension meter, carry out quality of coating measurement；
Strip after S8, measurement carries out smooth and tension straingtening into four-roller type polishing machine and six-roll type seven-roll Abramsen machine, to change
It is apt to mechanical performance, profile and the surface quality of strip；Wherein the maximum elongation percentage of polishing machine is 2%, the maximum of seven-roll Abramsen machine
Elongation percentage is 2%, and idler roller is provided with before and after polishing machine and seven-roll Abramsen machine, to meet polishing machine and seven-roll Abramsen machine to tension force
The need for；
S9, due to use wet finishing and tension straingtening technique, wiping arrangement is configured with behind, the strip after extracting enters drying
Device, belt steel surface is dried and by entering surface processing device after idler roller change tension force；The device is using at chromating
Reason, the systemic effect is to prevent galvanized steel surface from giving birth to white rust；
Strip after S10, Passivation Treatment enters outlet looping, the effect of outlet looping through drier, slewing rollers, band bracing members etc.
It is have enough buffer time to ensure the continuous production of process section when outlet shutdown or reduction of speed, shearing or acceleration and deceleration, strip goes out
Carry out bundling, excision weld metal zone and the test sampling of steel band after kink as needed by Flying Shears by Exit, and excision waste material is by giving up
Material collection system collects post processing；
S11, strip are coiled into the coil of strip of constant weight by pull reel, finally by outlet coil car from coiler mandrel
Remove, be transported at weighing device and baling press and pack, weigh, then hung oneself from Saddle with steel roll by being driven a vehicle and transport to finished product and transported
On standdle carrier, it is transported to warehouse for finished product and stacks or enter lower road production process.
2. a kind of hot dip galvanizing production process according to claim 1, it is characterised in that：The cleaning section includes alkali cleaning, heat
Rinsing and strip drier, this section are used for washing away the ROLLING OIL and iron powder of belt steel surface.
3. a kind of hot dip galvanizing production process according to claim 1, it is characterised in that：The annealing furnace is L-type non-oxidation
Continuous annealing furnace, including preheating section and non-oxidation section, radiation pipeline section, spray cooling section, preheating section and non-oxidation section for vertical,
Radiation pipeline section, spray cooling section are horizontal；Annealing furnace ability：35t/h, 0.35 × 1250mm of strip steel specification, process speed：
170m/min。
4. a kind of hot dip galvanizing production process according to claim 1, it is characterised in that：The seven-roll Abramsen machine is stretched to rectify
Straightener system six-roll type, with 3 sets of bending rolls, recurvation roller and smoothing roll case, working roll and backing roll are not driven.
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| CN108607896A (en) * | 2018-04-23 | 2018-10-02 | 黄石山力科技股份有限公司 | A kind of the continuously dip coat unit and hot plating technology of the preceding smooth function of band plating |
| CN108796480A (en) * | 2018-07-17 | 2018-11-13 | 张家港扬子江冷轧板有限公司 | Trivalent chromium passivation heat zinc coating plate and preparation method suitable for powder spray |
| CN112453053A (en) * | 2020-09-28 | 2021-03-09 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for eliminating steel bar rising at finishing machine in production of thin and ultrathin steel strips |
| CN113151765A (en) * | 2021-03-08 | 2021-07-23 | 常熟科弘材料科技有限公司 | Environment-friendly high-performance coating steel plate and preparation method thereof |
| CN113621908A (en) * | 2021-07-06 | 2021-11-09 | 无锡苏盛金属制品有限公司 | Manufacturing process and method of hot-dip metal steel strip |
| CN113846291A (en) * | 2020-06-28 | 2021-12-28 | 宝山钢铁股份有限公司 | Cleaning, coating and plating combined unit for galvanized steel sheet/coil and production method thereof |
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Cited By (7)
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| CN108607896A (en) * | 2018-04-23 | 2018-10-02 | 黄石山力科技股份有限公司 | A kind of the continuously dip coat unit and hot plating technology of the preceding smooth function of band plating |
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| CN113151765A (en) * | 2021-03-08 | 2021-07-23 | 常熟科弘材料科技有限公司 | Environment-friendly high-performance coating steel plate and preparation method thereof |
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