CN108431284A - Plater and coating method - Google Patents
Plater and coating method Download PDFInfo
- Publication number
- CN108431284A CN108431284A CN201680075453.8A CN201680075453A CN108431284A CN 108431284 A CN108431284 A CN 108431284A CN 201680075453 A CN201680075453 A CN 201680075453A CN 108431284 A CN108431284 A CN 108431284A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- cooling
- plating
- knife
- coating layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 318
- 239000010959 steel Substances 0.000 claims abstract description 318
- 238000001816 cooling Methods 0.000 claims abstract description 261
- 238000007747 plating Methods 0.000 claims abstract description 169
- 239000011247 coating layer Substances 0.000 claims abstract description 149
- 239000007788 liquid Substances 0.000 claims abstract description 111
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000004140 cleaning Methods 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 26
- 239000003507 refrigerant Substances 0.000 claims abstract description 19
- 239000001307 helium Substances 0.000 claims abstract description 17
- 229910052734 helium Inorganic materials 0.000 claims abstract description 17
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000002844 melting Methods 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 21
- 239000010410 layer Substances 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 16
- 230000003746 surface roughness Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000013518 transcription Methods 0.000 claims description 6
- 230000035897 transcription Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 29
- 239000011701 zinc Substances 0.000 description 21
- 229910052725 zinc Inorganic materials 0.000 description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 17
- 239000000243 solution Substances 0.000 description 16
- 239000007789 gas Substances 0.000 description 14
- 239000000919 ceramic Substances 0.000 description 12
- 230000001105 regulatory effect Effects 0.000 description 11
- 230000007547 defect Effects 0.000 description 8
- 210000001519 tissue Anatomy 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 240000002853 Nelumbo nucifera Species 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- 229910052752 metalloid Inorganic materials 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- -1 zinc metalloid Chemical class 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001076960 Argon Species 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000013876 argon Nutrition 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
- C23C2/18—Removing excess of molten coatings from elongated material
- C23C2/20—Strips; Plates
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The present invention provides a kind of plater, improves productivity while capable of simplifying process and product quality, the plater include：Plating slot carries out melting plating to steel plate；Cleaning part, the rear end of the plating slot on steel plate direction of travel are configured at the one or both sides of steel plate to control the plating adhesion amount of the steel plate；And cooling end, the rear end of the cleaning part on steel plate direction of travel, the one or both sides for being configured at steel plate carry out cooling metal sheets, wherein the cleaning part includes：Knife is contacted by the coating layer with surface of steel plate to control plating adhesion amount；And refrigerant supply unit, by including the extremely low geothermal liquid of liquid nitrogen or liquid helium come cooling knife to knife supply.
Description
Technical field
The present invention relates to the platers and coating method in surface of steel plate continuously plating molten metal.
Background technology
It is widely available come the technology for assigning corrosion resistance by the coating surface zinc metalloid or metal alloy in steel plate.
The present situation of coated steel sheet is as follows, that is, due to the outstanding corrosion resistance of coated steel sheet, use scope since general building materials by
Gradually it is expanded to the outer plank for needing beautiful household appliances, automobile, the ship on surface etc..
Fused zinc plating equipment (CGL, Continuous Galvanizing Line) is by molten in surface of steel plate attachment
The equipment for melting zinc to produce coated steel sheet.In fused zinc plating equipment, steel plate passes through the sinking roller that is configured in plating pot
The guiding of (sink roll) realizes plating to immerse in the plating pot for accommodate fused zinc.
The steel plate for being attached with fused zinc moves out after sinking roller is changed direction from plating pot top.It is taken from zinc plating pot
The steel plate gone out carries out the process of cooling coating layer to be manufactured into after the process through overregulating the plating adhesion amount on surface of steel plate
Coated steel sheet.
Recently, present situation is in a variety of producers just in volume production coated steel sheet, therefore it is required that developing can make plating process simple
The differential technology that plating quality is improved while listization, to improve product competitiveness.
Invention content
(1) technical problems to be solved
The plater and coating method that productivity and product quality are improved while process capable of being simplified are provided.
There is provided can be by the plater and coating method of the more easily accurate control of plating adhesion amount.
There is provided can by plating adhesion amount control process simplify and can will carry out plating adhesion amount control process when
The plating defect that will produce generates the plater and coating method minimized.
Steel plate cooling process can be simplified and can more quickly execute cooling plater and plating side by offer
Method.
Plating product can be improved by minimizing the plating adhesion amount of coated steel sheet or coating layer tissue deflection by providing
The plater and coating method of matter.
The plater and coating method of the coated steel sheet that a variety of building forms can be manufactured are provided.
(2) technical solution
Plater for this this realization example may include：Plating slot carries out melting plating to steel plate；Cleaning part, in steel plate
The rear end of the plating slot on direction of travel is configured at the one or both sides of steel plate to control the plating attachment of the steel plate
Amount；And cooling end, the rear end of the cleaning part on steel plate direction of travel are configured at the one or both sides of steel plate to cool down
Steel plate, wherein the cleaning part includes：Knife is contacted by the coating layer with surface of steel plate to control plating adhesion amount；And system
Cryogen supply unit, by including the extremely low geothermal liquid of liquid nitrogen or liquid helium come cooling knife to knife supply.
The plater of this realization example may include：Plating slot carries out melting plating to steel plate；Cleaning part is advanced in steel plate
The rear end of the plating slot on direction is configured at the one or both sides of steel plate to control the plating adhesion amount of the steel plate；With
And cooling end, the rear end of the cleaning part on steel plate direction of travel, the one or both sides for being configured at steel plate carry out cooling metal sheets,
Wherein, the cooling end includes：The cooling body of at least more than one is close to by the coating layer with surface of steel plate to cool down plating
Layer；And refrigerant supply unit, by cooling down cooling to cooling body supply includes the extremely low geothermal liquid of liquid nitrogen or liquid helium
Body.
The plater of this realization example may include：Plating slot carries out melting plating to steel plate；Cleaning part is advanced in steel plate
The rear end of the plating slot on direction is configured at the one or both sides of steel plate to control the plating adhesion amount of the steel plate；With
And cooling end, the rear end of the cleaning part on steel plate direction of travel, the one or both sides for being configured at steel plate carry out cooling metal sheets,
Wherein, the cleaning part includes：Knife is contacted by the coating layer with surface of steel plate to control plating adhesion amount；And refrigerant
Supply unit, by including the extremely low geothermal liquid of liquid nitrogen or liquid helium come cooling knife to knife supply, also, the cooling end packet
It includes：The cooling body of at least more than one is close to by the coating layer with surface of steel plate to cool down coating layer；And refrigerant supply
Portion, by cooling down cooling body to cooling body supply includes the extremely low geothermal liquid of liquid nitrogen or liquid helium.
The knife may include：Ontology extends along steel plate width direction, and in inside, cycle has extremely low geothermal liquid；And tip
Portion is set to the front end of the ontology, is contacted by the coating layer with steel plate to control plating adhesion amount.
The point of the knife can be cooled to -250 to 5 DEG C of temperature.
The knife may include：Rotary body extends along steel plate width direction, is arranged in a manner of it can rotate, is followed in inside
Ring has extremely low geothermal liquid；Point is arranged at the peripheral surface of rotary body interval spaced apart in the circumferential direction, by with steel plate table
The coating layer in face contacts to control plating adhesion amount；And rotary driving part, it is connect with the rotary body, by making rotary body revolve
It transfers and configures side point towards surface of steel plate.
The point is set to ontology or rotary body with can capable of assembling and disassembling.
The cleaning part may also include：Load sensor is configured at the knife, contact lotus of the detection point to steel plate
Weight；And control unit controls point pair according to the detection signal of the load sensor by moving knife relative to steel plate
The pressing force of steel plate.
The point can have the structure of the width direction configured in parallel relative to steel plate.
The point can have the structure that the width direction relative to steel plate is arranged obliquely.
The point is bent to form, and can have the knot that the moving direction along steel plate is configured with " V " shape or inverted " V " shape
Structure.
The cleaning part may also include chilling roller, the rear end of the knife of the chilling roller on steel plate direction of travel, along steel plate
Width direction extends, and in inside, cycle has extremely low geothermal liquid, is close to by the coating layer with surface of steel plate to control plating attachment
Amount, and rapid cooling steel plate.
The cleaning part may also include：Load sensor is configured at the chilling roller, contact lotus of the detection chilling roller to steel plate
Weight；And control unit moves chilling roller to control chilling roller to steel plate according to the detection signal of the load sensor relative to steel plate
Pressing force.
The cleaning part may also include scraper, and the scraper contacts to remove the pollution for being attached to chilling roller surface with chilling roller
Object.
The cooling body may include that chill roll, the chill roll extend along steel plate width direction, and in inside, cycle has extremely low
Geothermal liquid is pressurizeed to the coating layer of surface of steel plate to give cold energy, and the chill roll has by multiple chill rolls along steel plate
Direction of travel interval configuration structure.
The cooling body may also include cooling zone, and the cooling tape wrapping is set at least two chill rolls, by with
The coating layer of surface of steel plate is close to give cold energy.
It can be formed with the pattern for transcription to coating layer on the surface of the cooling zone.
The chilling roller or chill roll can be cooled to -250 to 5 DEG C of temperature.
The chilling roller or the surface roughness of chill roll are average 0.1 to 3um.
The cooling end may also include：Load sensor is configured at the chill roll, contact of the detection cooling zone to steel plate
Loading；And control unit moves chill roll to control cooling zone according to the detection signal of the load sensor relative to steel plate
To the pressing force of steel plate.
May have a structure such that, that is, along the steel plate moving direction from the knife close to chill roll when, the knife with
Interval between steel plate reduces and the plating layer thickness of steel plate is made to be gradually reduced.
The coating method of this realization example may include：Plating steps, coated steel sheet；Regulating step, reconcile steel plate by plating
Adhesion amount；And cooling step, cooling metal sheets, wherein the regulating step utilizes the knife contacted with the coating layer of surface of steel plate
The step of carrying out Primary regulation plating adhesion amount；And by including the extremely low geothermal liquid of liquid nitrogen or liquid helium come cold to knife supply
But the step of knife.
The coating method of this realization example may include：Plating steps, coated steel sheet；Regulating step, reconcile steel plate by plating
Adhesion amount；And cooling step, cooling metal sheets, wherein the cooling step is cold using being contacted with the coating layer of surface of steel plate
But body gives the step of cold energy carrys out cooling metal sheets to steel plate；And by including the pole of liquid nitrogen or liquid helium to cooling body supply
Cryogenic liquid is come the step of cooling down cooling body.
The coating method of this realization example may include：Plating steps, coated steel sheet；Regulating step, reconcile steel plate by plating
Adhesion amount；And cooling step, cooling metal sheets, wherein the regulating step includes：It is contacted using the coating layer with surface of steel plate
Knife the step of carrying out Primary regulation plating adhesion amount；And by including the extremely low geothermal liquid of liquid nitrogen or liquid helium to knife supply
The step of carrying out cooling knife, also, the cooling step includes：The cooling body contacted using the coating layer with surface of steel plate is to steel plate
Give the step of cold energy carrys out cooling metal sheets；And by cooling body supply include the extremely low geothermal liquid of liquid nitrogen or liquid helium come
The step of cooling cooling body.
The regulating step may also include：Adhered to using the chilling roller Secondary Control plating that the coating layer with surface of steel plate is close to
Amount carrys out the step of cooling metal sheets；And cool down chilling roller using chilling roller supply includes the extremely low geothermal liquid of liquid nitrogen or liquid helium
Step.
The regulating step may also include：The step of detecting the contact loading of knife or chilling roller to steel plate；And according to being examined
The contact loading of survey is come the step of controlling the pressing force of knife or chilling roller to steel plate.
The cooling step may also include：The step of detecting contact loading of the cooling body to steel plate；And according to being detected
Contact loading come the step of controlling pressing force of the cooling body to steel plate.
The regulating step and cooling step can be such that the plating layer thickness of steel plate is gradually reduced along the moving direction of steel plate.
In the regulating step, the point of knife can keep -250 to 5 DEG C of temperature.
In the regulating step, chilling roller can keep -250 to 5 DEG C of temperature.
In the cooling step, cooling body can keep -250 to 5 DEG C of temperature.
The coated steel sheet can be with the cooling velocity of 20 DEG C/sec or more by rapid cooling.
The coated steel sheet can be with the cooling velocity of 20 DEG C/sec or more by rapid cooling to 250 DEG C of temperature below.
It may also include using the discharge gas generated by the liquid nitrogen used in the regulating step or cooling step as heat
The atmosphere holding of reason furnace reduction gas or cooling process is with gas come the step of use.
In the cooling step, may also include by will be formed in the pattern transfer on cooling body surface to coating layer come
Plating layer surface forms the step of pattern.
(3) advantageous effect
According to this realization example described above, qualitative control element is reduced by simplifying process, management can be made
It is easy and productivity can be improved.Product competitiveness can be improved compared with opponent and improves profitability.
In addition, by improving cooling efficiency come more effectively rapid cooling steel plate, thus, it is possible to shorten to set for cooling
Standby length, and the outstanding coated steel sheet of surface quality can be produced by reducing Surface Defects in Steel Plate generation.
In addition, by make it is cooling do not contacted with steel plate with gas, can solve previous to generate using gas injection
Zinc plating disperses or leads to the problem of dross and noise.
In addition, realizing rapid cooling by using the chilling roller being in direct contact with steel plate, can obtain to difficult plating steel grade
Also it can improve the effect of plating.
It is easy in addition, becoming to the accurate control of plating adhesion amount, and by the way that the plating of the width direction along steel plate is attached
The amount of wearing deviation or coating layer tissue deflection minimize, and can manufacture the coated steel sheet of high-quality.
Description of the drawings
Fig. 1 is the figure for the fused zinc plater for diagrammatically illustrating the present embodiment.
Fig. 2 is the figure of the knife structure for the fused zinc plater for diagrammatically illustrating the present embodiment.
Fig. 3 is the figure of another embodiment of the knife for the fused zinc plater for diagrammatically illustrating the present embodiment.
Fig. 4 is the figure of the contact loading control structure for the steel plate to knife for diagrammatically illustrating the present embodiment.
Fig. 5 is the point structure for the knife for diagrammatically illustrating the present embodiment and the various embodiments of the configuration structure of steel plate
Figure.
Fig. 6 is the figure of the structure of the chilling roller for the fused zinc plater for diagrammatically illustrating the present embodiment.
Fig. 7 to Fig. 8 is the figure of the structure of the cooling end for the fused zinc plater for diagrammatically illustrating the present embodiment.
Specific implementation mode
In the following, the embodiment of the present invention is described with reference to, so that the technical staff in the field belonging to the present invention is easy in fact
Apply the present invention.The technical staff in the field as belonging to the present invention is understood that, idea of the invention can not departed from
Under the premise of range, aftermentioned embodiment can be deformed in a plurality of ways, embodiment not described herein.
It is hereby stated that these attached drawings are schematical, do not shown with being consistent with actual ratio.About the structure in attached drawing
Relative size and ratio, in order to attached drawing definition and conveniently, shown by exaggerating or reducing size, arbitrary size
Only it is illustrative, is not intended to limit.
Hereinafter, the present embodiment is illustrated using plater in the molten of surface of steel plate plating zinc metalloid or metal alloy
Melt zinc plater.This plater is not limited to the plating of zinc metalloid or metal alloy, can be applied to various metals
Melting plater.
Fig. 1 diagrammatically illustrates the fused zinc plater of the present embodiment.
As shown in Figure 1, the plater of the present embodiment includes：Plating slot 10 carries out melting plating to steel plate P；Cleaning part,
The rear end of the plating slot 10 on steel plate direction of travel is configured at the one or both sides of steel plate to control the plating of the steel plate
Cover adhesion amount；And cooling end, the rear end of the cleaning part on steel plate direction of travel are configured at the one or both sides of steel plate
Carry out cooling metal sheets.
Guide into the steel plate P of plating slot 10 through being configured in plating slot 10 sinking roller (sink roll) 12 when be immersed to
Melting plating process is carried out in molten metal.Steel plate P converts direction of travel come to the top of plating slot 10 by sinking roller 12
It is mobile.It is drawn from 10 top of plating slot come the steel plate P after coating surface by the molten metal in plating slot 10.Steel plate is along traveling
The cleaning part configured in order and cooling end are passed through to be manufactured into coated steel sheet in direction.Steel after cooling end carrys out rapid cooling
Plate is advanced by idler roller (tension roll) 14 to next process.
The coating solution that can be applied in the present embodiment can be metals and the alloys such as zinc and kirsite, aluminium and aluminium alloy
Molten liquid is not particularly limited as long as the plating of metal and alloy then can all be applied.
In the present embodiment, the cleaning part has and is in direct contact with the coating layer for being attached to surface of steel plate to adjust plating
The structure of adhesion amount.
For this purpose, the cleaning part may include：Knife 20 is contacted with the coating layer on the surfaces steel plate P to control plating adhesion amount；With
And refrigerant supply unit 50, carry out cooling knife 20 to the extremely low geothermal liquid that the supply of the knife 20 includes liquid nitrogen or liquid helium.
By the way that knife 20 to be in direct contact with coating layer, oxide can be prevented to be mixed into plating liquid level, and can be easier
Ground controls the plating adhesion amount of the steel plate.The refrigerant supply unit 50 utilizes extremely low geothermal liquid cooling knife 20, to reduce knife
20 temperature, even if coating solution welding can be prevented if in the state that the coating layer of knife 20 and high temperature is in direct contact
In knife 20.
In addition, in the present embodiment, the cooling end is in direct contact with the coating layer with surface of steel plate carrys out cooling metal sheets
Structure.
For this purpose, the cooling end may include：The cooling body 60 of at least more than one, by tight with the coating layer of surface of steel plate
It pastes to cool down coating layer 60；And refrigerant supply unit 50, include the extremely low temperature of liquid nitrogen or liquid helium to the supply of the cooling body 60
Liquid cools down cooling body 60.
By making cooling body 60 and coating layer be in direct contact the coating layer come cooling metal sheets, cooling capacity can be maximized
Carry out more quickly rapid cooling steel plate coating layer.The cooling end is cold to reduce by using extremely low geothermal liquid cooling cooling body 60
But the temperature of body 60, even if plating can be prevented if in the state that the coating layer of cooling body 60 and high temperature is in direct contact
Solution is fused to cooling body 60.
The refrigerant supply unit 50 is used to supply extremely low geothermal liquid to knife 20 or cooling body 60, such as may include accommodating
The tank of extremely low geothermal liquid, the supply line of carry electrode cryogenic liquid and the supply pump being arranged on supply line.About the refrigeration
Agent supply unit 50, as long as the structure of extremely low geothermal liquid can be supplied, then can apply and various deformation can be carried out.
About the extremely low geothermal liquid used in the refrigerant supply unit 50, other than liquid nitrogen and liquid helium, can also make
With plurality of liquid such as liquid argons.If using liquid nitrogen, opposite economy can be improved.
In this way, the knife 20 and cooling body 60 that are cooled down using extremely low geothermal liquid are in direct contact with steel plate P to control the plating of steel plate
The amount of covering and rapid cooling, the plating adhesion amount of accurate control coated steel sheet is capable of from there through the present embodiment, and can will be plated
The cooling velocity for covering steel plate is improved to 20 DEG C/sec or more.Therefore, it is possible to substantially shorten the length of the equipment line for cooling metal sheets
Degree, and production speed can be improved.
The extremely low geothermal liquid supplied to knife 20 or cooling body 60 by the refrigerant supply unit 50, by knife 20 or cold
But it carries out heat exchange when body 60 with coating layer and can be gasified.The gas being discharged from knife 20 or cooling body 60 passes through filtering appropriate
After device, it can be used as the interior reducing gas of heat-treatment furnace (furnace) of Iron-smelting or be used to keep non-in cooling process
The gas of oxidizing atmosphere is recycled using to realize.
Fig. 2 shows the specific structures of the knife of the present embodiment.
In the present embodiment, on the two sides of steel plate, configuration to adjust the attached of plating liquid to the two sides steel plate P the knife 20 in opposite directions
The amount of wearing.On the two sides steel plate P, the knife 20 of configuration has same structure, only illustrates the knife of the one side positioned at steel plate below.
As shown in Fig. 2, the knife 20 extends along steel plate P width directions, the knife 20 includes：Ontology 22 is recycled in inside
There is extremely low geothermal liquid；And point 24, it is set to 22 front end of the ontology, is contacted with the coating layer of steel plate, the knife 20 can
The structure of plating adhesion amount with a secondary control surface of steel plate.
The metals (metal) such as the stainless steel that the ontology 22 and the point 24 can utilize pole low-temperature durability outstanding,
Ceramic (ceramic) or metalwork coated with ceramics etc. manufacture, with can be long-term and stably in the extremely low Wen Huan of liquid nitrogen
It is used in border.
The flow path 26 for making extremely low geothermal liquid pass through is formed in the inside of the ontology 22.The system being connect with the ontology 22
Cryogen supply unit 50 supplies extremely low geothermal liquid via the cycle of flow path 26.The flow path 26 is set to ontology 22 can be fully cooled
The mode of point 24 of front end extend to form until the front end residing for point 24, to enable point 24 and pole
Cryogenic liquid contacts.
In the present embodiment, the point 24 is set to ontology 22 with capable of assembling and disassembling.
The coating layer continuous contact of the point 24 and high temperature and be worn away.Therefore, the point to being used as consumptive material can be passed through
The accessory that can be replaced is realized in end 24, and point 24 is only replaced in ontology 22 to be continuing with knife 20 when wearing away.
In order to more closely control plating adhesion amount, the point 24 can have the knot be formed as closer to front end then sharper shape
Structure.
The extremely low geothermal liquid supplied to the ontology 22 comes cooling tip portion 24 along the cycle of flow path 26, thus makes point 24
Keep low-temperature condition.Therefore, point 24 can prevent coating solution to be attached to point in the state of being contacted with coating layer
It, being capable of a more accurately secondary control plating adhesive layer while 24.
Fig. 3 instantiates another embodiment of knife.The knife of the embodiment of Fig. 3 is made with that can be replaced immediately in point exception
Mode is with the structure for including multiple points.
For this purpose, the knife 21 of the present embodiment may include：Rotary body 23 extends along steel plate width direction, with the side that can be rotated
Formula is arranged, and in inside, cycle has extremely low geothermal liquid；Point 24, at 23 peripheral surface of rotary body interval spaced apart in the circumferential direction
Setting, contacts with the coating layer on the surfaces steel plate P to control plating adhesion amount；And rotary driving part, connect with the rotary body 23
It connects, by making the rotation of rotary body 23 configure side point 24 towards surface of steel plate.
Therefore, when the exception as point 24 is worn away occurs, by rotating bodies 23 by the point in use
End 24 from steel plate remove and will be standby in other points 24 be moved to steel plate side, thus, it is possible to replace point immediately
24 use.As shown in figure 3,90 degree of angle can be separated to configure along 23 peripheral surface of rotary body by four points 24.
Therefore, each point 24 can be moved to surface of steel plate side by the angle that rotary body 23 is rotated by 90 °.It can be to the point
The setting number of end 24 makes various changes.
In the present embodiment, the rotary body 23 is formed as cylindrical shape.The rotary body 23 is not limited to cylindrical shape
Shape, such as can have the peripheral surface along rotary shaft to separate the structure that angle is continuously configured with ontology 22 described above.The rotation
Two ends of swivel 23 can be pivotally supported by the other supporting table (not shown) in equipment.
The metals such as outstanding stainless steel of pole low-temperature durability (metal), ceramics can also be used in the rotary body 23
(ceramic) or metalwork etc. coated with ceramics manufactures, with can be long-term and stably in the pole low temperature environment of liquid nitrogen
It uses.
The inside of the rotary body 23 is formed with the flow path (not shown) for making extremely low geothermal liquid pass through.Inside rotary body 23
The flow path of formation can be connect via two ends of the rotary shaft of rotary body 23 with refrigerant supply unit 50.From refrigerant supply unit
The extremely low geothermal liquid of 50 supplies recycles supply via the end of the rotary body 23 to the flow path inside rotary body 23.The flow path
It is extended to form to the table residing for point 24 in a manner of it can be fully cooled the point 24 for being set to 23 peripheral surface of rotary body
Face, so that extremely low geothermal liquid can be contacted with point 24.
There is point 24 the surface of the rotary body 23 is axially disposed.The point 24 is set in which can assemble and disassemble
23 surface of rotary body.
It, can as long as with rotary body 23 can be made to rotate the structure of set angle about the rotary driving part
Using.As shown in figure 3, for example, the rotary driving part may include connecting with rotary body 23 and driving band 25 and carrying out passing power
Stepper motor 27.Therefore, when stepper motor 27 rotates driving specified amount by driving band 25 to 23 passing power of rotary body, from
And rotary body 23 rotates the configuration space of point 24.Being in for 23 surface of rotary body is set to the rotation of rotary body 23 to wait for
New point 24 in machine is mobile to steel plate side and is contacted with the coating layer of surface of steel plate.Also, because of the rotation of rotary body 23
Then abrasion occur or there is the position of readiness that abnormal point 24 is removed from surface of steel plate and is moved to outside outward.Mill
The point 24 of consumption carries out replacing the processing such as processing or surface grinding work from position of readiness.
In this way, in case of the present embodiment, point is simply replaced by the way that rotary body 23 is rotated predetermined angular
24, thus, it is possible to reduce the replacing construction of point 24 and can continuously work.
In the present embodiment, can be recycled to the inside of the knife 20,21 extremely low geothermal liquid point 24 is cooled to-
250 to 5 DEG C.When the temperature of the point 24 is higher than 5 DEG C, the coating solution that high temperature occurs is attached to asking on point 24
Topic.The point 24 temperature be less than -250 DEG C when, then occur the point 24 black brittleness damage the problem of.
By the way that the knife 20,21 is changed the interval between steel plate relative to steel plate movement, thus critically adjust
Utilize the plating adhesion amount of point 24.
By removing the knife 20 outward further to or from coating layer to the coating layer of steel plate, change point
Being spaced to adjust the plating adhesion amount of steel plate between 24 and steel plate P.
As shown in figure 4, in order to which accurate control is using the plating adhesion amount of the knife 20, the cleaning part may also include：It is negative
Lotus sensor 30 is configured at the knife 20, contact loading of the detection point 24 to steel plate P；And control unit 32, according to described
The detection signal of load sensor 30 moves knife 20 to control pressing force of the point 24 to steel plate relative to steel plate.
Using the contact loading for the point that load sensor 30 is detected, to confirm between point 24 and steel plate P
Interval.When narrower intervals between point 24 and steel plate P, point 24 gos deep into the coating layer of steel plate and and coating solution
Between contact quantitative change it is more, become larger to contact loading, on the contrary, when point 24 is removed from steel plate P, with coating solution it
Between exposure tail off and contact loading and become smaller.
The control unit 32 by the detected value of calculated load sensor 30 come according to the plating adhesion amount set come phase
One secondary control plating adhesion amount is come for steel plate P movement knives 20.
The movement of the knife 20 relative to steel plate is such as can be by driving portion 34 the driving cylinder that is combined with knife 20 come real
It is existing.A variety of power sources such as driving cylinder or motor can be utilized about the driving portion 34, as long as with can be by knife 20 relative to steel
The structure of the linear movement of plate can then be applied.
In addition, the control unit 32 can by the variation of the measured value of detection load sensor 30, come confirm device whether there is or not
It is abnormal.When judgment means are abnormal, the necessary measure such as point 24 of more tool changing 20 can be taken.
Fig. 5 instantiates the configuration structure of the point shape of the knife relative to steel plate and the point relative to steel plate.
In the present embodiment, the point 24 for being set to the knife 20,21 is formed as rectilinear form or " V " of intermediate bending
The various structures such as the structure of word shape.It is provided with the ontology 22 of the knife of the point 24 or rotary body 23 may be alternatively formed to and point
The same structure of the shape of end 24.For example, in the case where the point 24 is formed as " V " word shape, it is provided with tip
The front end of the ontology 22 of the knife 20 in portion 24 may be alternatively formed to " V " shape of shape identical with point 24.
As shown in figure 5, the point 24 can be relative to the width direction configured in parallel of steel plate P.In addition, the point
24 can be arranged obliquely relative to the width direction of steel plate.
It, can be with so that bending in addition, in the case where the point 24 is formed as the structure bent with " V " word shape
It is partially toward the moving direction of steel plate or the mode towards the direction opposite with the moving direction of steel plate, is configured to inverted " V " shape
Or " V " word shape.
In this way, can the point 24 that contact with coating layer be configured relative to steel plate P in many ways, can by reduction and
The loading of the coating solution applied to point 24 when coating layer contacts, can swimmingly adjust the adhesion amount of coating layer.
As shown in Figure 1 and Figure 6, the cleaning part may also include chilling roller 40, which is configured in steel plate direction of travel
On 20 rear end of the knife, more closely control steel plate plating adhesion amount and rapid cooling steel plate coating layer.
The chilling roller (chill roll) 40 configures along the width direction of steel plate, is the roll structure being close to coating layer pressurization
Object.Two ends of the chilling roller 40 can be rotatably supported at the other supporting table (not shown) in equipment.The chilling roller
40 as the structure that can be rotated freely, and can have a structure that the movement with steel plate rotates together with, or with other drive
Dynamic source connection carrys out the structure rotated with setting speed.
In the present embodiment, the surface roughness of the chilling roller 40 can be average 0.1 to 3um.
When the surface roughness of the chilling roller 40 is higher than 3um, occur non-uniform caused by inferior surface quality
The problem of post-processing.When the surface roughness of the chilling roller 40 is less than 0.1um, the post-processing occurred such as chemical conversion treatment is special
Property reduce the problem of.
The chilling roller 40 has in the internal structure for recycling and having extremely low geothermal liquid and being cooled to low temperature.The chilling roller 40 can
Using the metals such as outstanding stainless steel of pole low-temperature durability (metal), ceramics (ceramic) or coated with ceramic metalwork etc.
It manufactures, can be used in the pole low temperature environment of liquid nitrogen long-term and stably.
As shown in fig. 6, being formed with the flow path for making extremely low geothermal liquid pass through inside the chilling roller 40.In 40 inside shape of chilling roller
At flow path can be connect with refrigerant supply unit (referring to Fig.1 50) via two ends of the rotary shaft of chilling roller 40.From refrigeration
The extremely low geothermal liquid that agent supply unit 50 supplies recycles supply via the end of the chilling roller 40 to the flow path inside chilling roller 40.It utilizes
40 surface of chilling roller is remained the state of cooling of low temperature by the extremely low geothermal liquid supplied to the inside of chilling roller 40.Therefore, it is possible to cold
Roller 40 prevents coating solution to be attached to 40 surface of chilling roller and rapid cooling coating layer in the state of being contacted with the coating layer of steel plate P.
The chilling roller 40 is to once controlling the steel plate of plating adhesion amount, critically linear quadratic control plating adhesion amount, wherein
One secondary control can plating adhesion amount processing be using knife 20 pressurize be close to the surfaces steel plate P coating layer and so that steel plate P is passed through knife
20 implement.In addition, the chilling roller 40 can with steel plate coating layer pressurize between the state being close to and steel plate it is direct into
Row heat exchange carrys out rapid cooling coating layer.
In the present embodiment, can be recycled to the inside of the chilling roller 40 extremely low geothermal liquid by its temperature be cooled to -250 to
5℃.When the temperature of the chilling roller 40 is higher than 5 DEG C, cooling performance and improving surface quality efficiency that coated steel sheet occurs reduce
The problem of.The chilling roller 40 temperature be less than -250 DEG C when, occur the chilling roller 40 black brittleness damage the problem of.
In this way, the plater of the present embodiment can be by the knife 20 of the low temperature that the coating solution with surface of steel plate contacts and cold
Roller 40 more closely controls plating adhesion amount and adjusts the thickness of coating layer.In addition, by using the chilling roller for being cooled to low temperature
40, by coating layer pressurization and rapid cooling, can make the tissue miniaturization of coating layer to obtain small and uniform surface solidification tissue,
And the plating adhesion amount deviation in width direction and coating layer tissue deflection can be effectively reduced.
Coating solution is set to solidify within the shorter time by contacting chilling roller 40 with coating layer, thus the plating dress
Set the cooling velocity rapid cooling that can make steel plate with 20 DEG C/sec.In addition, 40 one side of the chilling roller with defined pressure to plating
Coating pressurization is cooled down on one side, therefore can also improve plating performance to difficult plating steel grade.
In addition, in case of the present embodiment, sinking roller 12 and the chilling roller 40 of plating slot 10 are in supporting steel plate P in linkage
State, therefore steel plate pass through contact knife 20 during, will not occur completely steel plate P be bent in the width direction it is tortuous
Phenomenon.That is, the front end and rear end of the knife 20 on steel plate moving direction, steel plate passes through sinking roller 12 and chilling roller 40 respectively.Therefore,
Steel plate P in a manner of tortuous phenomenon does not occur by the state of 40 flat expansion of sinking roller 12 and chilling roller, to pass through knife 20.
When steel plate is tortuous, the plating adhesion amount deviation in width direction is generated, and fish is generated because side crosses plating
The coating surfaces defects such as bone line defect.In the case of previous structure, plating is generated again and again because of the tortuous phenomenon of such steel plate
Surface defect, but in case of the present embodiment, by preventing the tortuous generation of steel plate, you produce almost without width side
The coated steel sheet of upward plating adhesion amount deviation and coating layer tissue deflection.
In order to which accurate control utilizes the plating adhesion amount of the chilling roller 40, may be used also in the same manner as the cleaning part and knife of the present embodiment
Including：Load sensor 30 is configured at the chilling roller 40, detects the contact loading to the chilling roller 40 of steel plate；And control unit 32,
According to the detection signal of the load sensor, by making driving portion 34 work, chilling roller 40 is moved relative to steel plate to control
Make the pressing force to the chilling roller 40 of steel plate.
By the coating layer of the chilling roller 40 and steel plate P is close or removed outward from coating layer, change chilling roller 40 with
Being spaced critically to adjust the plating adhesion amount of steel plate and the thickness of coating layer between steel plate.
For the load sensor of chilling roller 40 and the structure of control unit and the load sensor described above for knife 20
30, the structure of control unit 32 and driving portion 34 is same, therefore uses same reference numeral, and structure and effect can refer to for knife
20 load sensor 30 and the explanation of control unit 32, therefore detailed description is omitted below.Therefore, the control unit 32 passes through meter
The detected value of load sensor 30 is calculated to pressurize to coating layer relative to steel plate movement chilling roller 40, thus can more closely be controlled
Plating adhesion amount and plating layer thickness correspondingly.In addition, withing 20 DEG C/sec while pressurizeing to coating layer using chilling roller
Above cooling velocity rapid cooling coating layer, therefore can be obtained by making the plating adhesion amount deviation of width direction minimize
The coating layer of finer tissue.
In addition, in order to cope with the contaminated situation in 40 surface of chilling roller, the cleaning part has the dirt on 40 surface of removal chilling roller
Contaminate the structure of object.For this purpose, as shown in fig. 7, the cleaning part may also include scraper 44, the scraper 44 is contacted with chilling roller 40 and is made a return journey
Except the pollutant adhered on the surface of chilling roller 40.The scraper 44 may be configured as along chilling roller 40 it is axially extending come with 40 table of chilling roller
Face contacts.Therefore, it is rotated by the chilling roller 40, on 40 surface of chilling roller, the pollutant of attachment is suspended on scraper 44, thus from cold
40 surface of roller removes pollutant.
So that steel plate is carried out fine adjustment plating adhesion amount by the cleaning part and realizes rapid cooling.Make steel plate by configuration
Cooling end in cleaning part rear end carrys out rapid cooling to set temperature hereinafter, simultaneously critically controlling plating layer thickness.
Fig. 7 and Fig. 8 instantiates the structure of the cooling end of the present embodiment.
The cooling end may include：The cooling body of at least more than one is close to by the coating layer with surface of steel plate come cold
But coating layer 60；And refrigerant supply unit 50, include the extremely low geothermal liquid of liquid nitrogen or liquid helium to the supply of the cooling body 60
Cooling cooling body 60.
In the present embodiment, the cooling body 60 may include that chill roll 62, the chill roll 62 prolong along steel plate width direction
It stretches, in inside, cycle has extremely low geothermal liquid, pressurizes to the coating layer on the surfaces steel plate P and gives cold energy.Can have multiple described cold
But the structure that roller 62 can be configured along the direction of travel interval of steel plate with multistage.
The chill roll 62 has the roll structure object that the width direction along steel plate configures identically as the chilling roller 40.It is described
Two ends of chill roll 62 can be rotatably supported at the other supporting table (not shown) in equipment.The chill roll 62 is made
For the structure that can be rotated freely, can have a structure that the movement with steel plate rotates together with, or with other driving source
Connection carrys out the structure rotated with setting speed.
The chill roll 62 has in inside cycle and has extremely low geothermal liquid to be cooled to the structure of low temperature.
Identically as chilling roller 40, the flow path 64 for making extremely low geothermal liquid pass through is formed with inside the chill roll 62.Cold
But the flow path 64 that the inside of roller 62 is formed via two ends of the rotary shaft of chill roll 62 with refrigerant supply unit (referring to Fig.1
50) it connects.The extremely low geothermal liquid supplied from refrigerant supply unit 50 is via the end of the chill roll 62 to inside chill roll 62
Flow path 64 cycle supply.By the way that the extremely low geothermal liquid supplied inside chill roll 62,62 surface of chill roll keeps the cold of low temperature
But state.
In addition, the cooling body 60 may also include cooling zone 66, the winding of the cooling zone 66 is set at least two coolings
On roller 62, it is close to the pressurization of the coating layer on the surfaces steel plate P to give cold energy.In the case of such structure, by cooling zone 66
It is in direct contact with the coating layer of steel plate, rather than is in direct contact by chill roll 62.
The metals such as the stainless steel that the chill roll 62 and the cooling zone 66 can utilize pole low-temperature durability outstanding
(metal), ceramic (ceramic) or metalwork coated with ceramics etc. are manufactured, with can be long-term and stably in liquid nitrogen
It is used in the low temperature environment of pole.
In the present embodiment, the surface roughness of the chill roll 62 or cooling zone 66 that are contacted with the surface of steel plate can be
Average 0.1 to 3um.When the surface roughness of the chill roll 62 or cooling zone 66 is higher than 3um, generate because of inferior surface product
Caused by matter the problem of non-uniform post-processing, when surface roughness is less than 0.1um, the rear place such as chemical conversion treatment is generated
Manage the problem of characteristic reduces.
In the present embodiment, cooling zone 66 constitutes a cooling body 60 on two chill rolls 62, tool there are one or
The structure that multiple such cooling bodies 60 are configured along the direction of travel interval of steel plate.Setting interval to each cooling body 60 or
Number etc. can carry out various deformation according to equipment or process conditions.
Each cooling body 60 can have same structure, illustrate the structure of side cooling body below.
Winding is provided with cooling zone 66, the plating level of cooling zone 66 and surface of steel plate on two chill rolls 62 separated
Contact.For example, the cooling zone 66 can be come and steel plate in the state of being contacted with steel plate by the rotation of chill roll 62 driving
Movement speed accordingly rotates.By making cooling zone 66 and the movement speed of steel plate accordingly rotate, steel plate and cooling zone can be made
Friction between 66 minimizes and prevents coating layer damage caused by rubbing.
The cooling zone 66 for being configured at outside is cooled to low temperature by chill roll 62.Cooling zone 66 is by chill roll 62 to be cooled to
The state of low temperature is contacted with plating level, therefore can rapid cooling coating layer.That is, the cooling zone 66 is on two chill rolls 62
It is contacted with the plating level of surface of steel plate.Therefore, the contact surface of cooling zone 66 is increased to the film-cooled heat of the coating layer of steel plate
Product.Therefore, the cooling end of the present embodiment increases the film-cooled heat to steel plate coating layer to improve cooling velocity using cooling zone 66.
In the present embodiment, the chill roll 62 can will be contacted with coating layer by internally recycling extremely low geothermal liquid
The temperature of cooling zone 66 is cooled to -250 to 5 DEG C.When the temperature of the cooling zone 66 is higher than 5 DEG C, the cold of coated steel sheet occurs
But the problem of performance and improving surface quality efficiency reduce.When the temperature of the cooling zone 66 is less than -250 DEG C, described in generation
The problem of black brittleness damage of cooling zone 66.
In this way, being contacted by being set to the cooling zone 66 of chill roll 62 with coating layer to make coating solution within the shorter time
It rapidly solidifies, thus the plater of the present embodiment can utilize cooling end by steel plate with the cooling velocity rapid cooling of 20 DEG C/sec
To 250 DEG C of temperature below.
The cooling end can be made up of the interval between two chill rolls 62 of unit to tighten cooling zone 66 adjusting.It is logical
It crosses and tightens expansion cooling zone 66, contact between the coating layer of surface of steel plate and cooling zone 66 and pressing force can be made uniform, and can
More uniformly pressurize cooling coating layer.
As shown in figure 8, for this purpose, the cooling end be wound with two chill rolls 62 of cooling zone 66 between may be provided with
Driving cylinder 68 for making to stretch between chill roll 62.The driving cylinder 68 drives to make chill roll according to the signal of control unit 32
It is opened between 62.With being opened between chill roll 62 and cooling zone 66 is tightened and is unfolded.
In addition, the chill roll 62 can critically adjust the pressing force to the coating layer of steel plate.For this purpose, although not shown, institute
It can includes load sensor, control unit and driving portion in the same manner as chilling roller 40 to state chill roll 62.The pressing force of chill roll adjusts knot
Structure and the structure described above for the load sensor 30 of chilling roller 40, control unit 32 and driving portion 34 are same, therefore to it
Structure and effect detailed description will be omitted.Therefore, chill roll by with the pressure that has set by cooling zone pressurization be tightly attached to steel plate come
Critically control the plating layer thickness of steel plate.
That is, by approaching the chill roll 62 to the coating layer of steel plate or being removed outward from coating layer, change cold
But being spaced to adjust the pressing force to the coating layer of steel plate between the cooling zone 66 that roller 62 is wound and steel plate.In this way, described cold
But it is right critically to adjust cooling zone 66 to move chill roll 62 by the detected value of calculated load sensor relative to steel plate for portion
Thus the pressing force of coating layer can critically control plating layer thickness.
Here, for each cooling body 60 in multiple cooling bodies 60 that the moving direction of steel plate configures, and it is described cold
But the pressing force of the corresponding cooling zone of the movement of roller 62 66 can be same or different.That is, along steel plate moving direction configure it is each cold
But body 60 can be close to same pressing force with steel plate.Alternatively, being directed to each cooling body 60, pressing force can be made along the shifting of steel plate
Dynamic direction gradually increases to be close to steel plate.In the case where having a structure in which, steel plate passes through each cooling body 60 1 on one side
While by gradually high pressing force, so as to gradually decrease plating layer thickness.
Therefore, it is moved from the knife 20 to cooling end by the moving direction of steel plate described in an edge and is gradually reduced plating on one side
Coating thickness can more closely control plating layer thickness.
In addition, the cooling end on one side with defined pressure pressurize coating layer while rapid cooling coating layer, thus can be right
Difficult plating steel grade can also improve plating performance.In addition, after the cooling end can utilize the direction of travel along steel plate to be configured at
Hold the chill roll or cooling zone of the caudal end of side, the final surface roughness for controlling steel plate coating layer.Therefore, higher can be produced
The product of quality.
In this way, according to the plater of the present embodiment, by the way that the cooling zone of extremely low geothermal liquid cooling will be utilized to be close to plating
Layer cools down coating layer, it is thus compared with the past can rapid cooling coating layer.Surface quality of the cooling of coated steel sheet to product
It has a direct impact.If not solidifying coating layer to contact with the roller of the gas of pollution or equipment rear end, this, which can be provided, generates surface
The immediate cause of defect, therefore coating layer should solidify completely before entering equipment rear end.In the case of previous structure, Yin Li
With air cooling or water-cooling pattern, thermal capacity is low, to which cooling capacity reduces, therefore, in order to which coated steel sheet is cooled to set point of temperature
So that coating layer is solidified completely below, needs the multistage cooling line grown very much.Therefore, previous cooling line is considerably complicated and sets
It is standby in large scale, it is difficult to effectively management equipment, to generate surface defect again and again.Particularly, big such as in Zn coating solutions
The alloy plating steel plate of amount addition Al and Mg is such, in the solidification start temperature of coating layer and the big difference of solidification end temp,
It is then difficult to be adequately cooled effect in the way of gas using previous.It is thus impossible to normally execute the cold of coating layer
But the coarse and fragile plating layer tissue containing Al and Mg as strong oxidizing metal is generated, is generated in such region
As stain or blacking plating layer surface combine, can cause coating layer crackle leads to the problem of and corrosion resistance reduction.
In contrast to this, in case of the present embodiment, cooling zone 66 is made to directly contact the coating layer of steel plate by pole
The cooling of cryogenic liquid can be applied to coating layer, therefore cooling efficiency can be made to further increase.Therefore, cooling can substantially be shortened
Time needed for coating layer.Therefore, according to the present embodiment, by by the cooling velocity of coated steel sheet improve to 20 DEG C/sec with
On, it can more reduce the equipment line of cooling end.In addition, gas is not directly contacted with steel plate and surface defect can be made to generate minimum
Change and obtain smaller and uniform surface texture, so as to manufacture the coated steel sheet of high-quality.In addition, because being used without using cooling
Gas and the generation that environmentally harmful dust can be prevented.
In addition, in the present embodiment, the cooling zone 66 can have carries out pressurization cooling to the coating layer of coated steel sheet
It imprints to form the structure of pattern in coating layer in the process.Here, pattern can be repetitious grain pattern or lines.
The coating layer of coated steel sheet therefore can be led to by the surface shape of the cooling zone contacted with coating layer in order to cooling
It crosses and forms multiple patterns in cooling zone to carry out the structure of transcription, to process plating layer surface.For this purpose, in the cooling zone 66
Surface can be formed with the pattern to coating layer for transcription.Therefore, it is close to cool down coating layer with coating layer pressurization in cooling zone
During, it is formed and cooling zone in coating layer by making the pattern compression transcription for being formed in cooling belt surface to coating layer
The pattern of pattern the same shape.
In this way, rapid cooling is carried out by the way that cooling zone to be touched to the coating layer of coated steel sheet, thus without in addition
The device for being used to form pattern, also can be readily formed pattern in coating layer.
Hereinafter, illustrating the plating process of the present embodiment.
According to the present embodiment, coated steel sheet is manufactured by carrying out following process, wherein these processes include：It will be via
The process that steel plate after plating slot plating fused zinc moves the plating adhesion amount to adjust steel plate to plating slot top；And it is cooling
The process of steel plate.
In order to adjust the plating adhesion amount of steel plate, using the knife for the low temperature that the coating layer with surface of steel plate contacts, to from plating
Cover the one secondary control plating adhesion amount of steel plate that slot moves out.Then, low using being contacted with surface of steel plate coating layer in the rear end of knife
The chilling roller of temperature, linear quadratic control plating adhesion amount.
It can make knife and chilling roller to the knife of steel plate and the contact loading of chilling roller, and according to the contact loading detected by detecting
Pressing force is controlled relative to steel plate movement, thus critically adjusts plating adhesion amount using the knife and chilling roller.
The knife and chilling roller are cooled to low temperature by internally supplying the extremely low geothermal liquid such as liquid nitrogen.Utilize what is supplied to knife
The point for being set to knife is cooled to 5 DEG C of temperature below by extremely low geothermal liquid.Therefore, it is contacted with coating layer to adjust in point
In the state of saving plating adhesion amount, coating solution will not be fused to the point for being cooled to low temperature.Therefore, the point of knife with
In the state of coating layer physical contact, the plating adhesion amount of coating layer is accurately controlled using knife.In this way, using knife to from plating
Cover the plating adhesion amount for the one secondary control coating layer of steel plate that slot moves out.
Chilling roller is contacted with the coating layer using the steel plate after one secondary control adhesion amount of knife, and physical compression coating layer, thus
Critically linear quadratic control plating adhesion amount.
Chilling roller is cooled to low temperature also by the extremely low geothermal liquid internally supplied, the surface of the chilling roller contacted with coating layer
It is cooled to 5 DEG C or less.Therefore, in the state that chilling roller is close to pressurization with coating layer, coating solution will not be attached to chilling roller surface.
Therefore, the plating adhesion amount of coating layer can be critically controlled coating layer pressurization using chilling roller, and adjust the coating layer of steel plate
Thickness.
During controlling plating adhesion amount, utilizing the chilling roller rapid cooling steel plate of low temperature using chilling roller compression steel plate
Coating layer.As previously explained, chilling roller with the state that is cooled down using extremely low geothermal liquid with and the coating layer that contacts of chilling roller carry out
Heat exchange, thus rapid cooling coating layer.In this way, coating layer is cooled down by making chilling roller be contacted with coating layer, it can be by the plating
Steel plate is covered with the cooling velocity rapid cooling of 20 DEG C/sec or more.
It is again passed by by chilling roller and the steel plate after rapid cooling and is configured at the cooling section of chilling roller rear end and carrys out rapid cooling
To set temperature.
Multiple units including chill roll and cooling zone as cooling body are continuously configured in cooling section, each unit
Cooling zone is close to the pressurization of the coating layer of surface of steel plate.
Chill roll is cooled to low temperature with chilling roller likewise by the internally extremely low geothermal liquid such as supply liquid nitrogen.Chill roll
Cold energy be applied to coating layer via cooling zone and carry out rapid cooling coating layer.
Cooling zone is cooled to low temperature by extremely low geothermal liquid, to plating in the state that cooling zone pressurizes to coating layer
Layer is not attached to cooling zone.
The cooling zone cooling coating layer in the state that the coating layer of steel plate is pressurizeed with appropriate pressure.It is cold by detecting
But contact loading of the band to steel plate, and cooling zone is made relative to steel plate movement critically to control according to the contact loading detected
Thus pressing force can adjust pressing force of the cooling zone to steel plate.
Therefore, have passed through the coated steel sheet of chilling roller can be cooled band with the cold of 20 DEG C/sec or more when by cooling section
But speed rapid cooling is to 250 DEG C of temperature below.
By plating adhesion amount adjustment process and coating layer cooling procedure, chilling roller and cooling zone are in direct contact simultaneously with coating layer
Pressurization, the plating layer thickness of steel plate is gradually reduced from there through the moving direction along steel plate, can more closely control the plating of steel plate
Coating thickness.
In addition, the cooling coating layer under the pressure of chilling roller and cooling zone, therefore can not only improve fused zinc plating, can also it change
The plating of kind hardly possible plating steel grade.
Liquid nitrogen can be gasified in plating adhesion amount adjustment process and coating layer cooling procedure, by what is generated in this process
After discharge gas is filtered process, the interior reducing gas of heat-treatment furnace (Furnace) or coated steel sheet cooling process can be used as
Atmosphere holding is recycled with gas.
Here, during using the coating layer of the cooling zone cooling metal sheets, it can be in the coating layer table of coated steel sheet
Face forms pattern.
Coating layer is pressurizeed and cooled down by using cooling zone, in the pattern pressing pressurization plating that cooling belt surface is formed
Layer.Therefore, coating layer is arrived in transcription to the pattern formed in cooling belt surface as it is, to the formation of plating layer surface with cold
The pattern of pattern the same shape that but belt surface is formed.
In this way, during cooling coating layer the figure of desirable shape can be simply formed on coated steel sheet surface
Case.
As above the illustrative embodiment of the present invention is illustrated, but those skilled in the art are able to carry out various deformation
And other embodiment.Such deformation and other embodiment all include the range with appended claims, do not depart from this hair
Bright real main idea and range.
Claims (20)
1. a kind of plater, which is characterized in that including：
Plating slot carries out melting plating to steel plate；
Cleaning part, the rear end of the plating slot on the direction of travel of the steel plate, the one or both sides for being configured at steel plate come
Control the plating adhesion amount of the steel plate；And
Cooling end, the rear end of the cleaning part on the direction of travel of the steel plate, the one or both sides for being configured at steel plate come
Cooling metal sheets,
The cooling end includes：The cooling body of at least more than one is close to by the coating layer with surface of steel plate to cool down plating
Layer；And refrigerant supply unit, by cooling down cooling to cooling body supply includes the extremely low geothermal liquid of liquid nitrogen or liquid helium
Body.
2. plater as described in claim 1, which is characterized in that
The cleaning part includes：Knife is contacted by the coating layer with surface of steel plate to control plating adhesion amount；And refrigerant supplies
To portion, by including the extremely low geothermal liquid of liquid nitrogen or liquid helium to knife supply come cooling knife.
3. plater as claimed in claim 2, which is characterized in that
The cleaning part further includes chilling roller, the rear end of the knife of the chilling roller on steel plate direction of travel, along steel plate width side
To extension, in inside, cycle has extremely low geothermal liquid, is close to by the coating layer with surface of steel plate to control plating adhesion amount, and anxious
Fast cooling metal sheets.
4. a kind of plater, which is characterized in that
Plating slot carries out melting plating to steel plate；
Cleaning part, the rear end of the plating slot on the direction of travel of the steel plate, the one or both sides for being configured at steel plate come
Control the plating adhesion amount of the steel plate；And
Cooling end, the rear end of the cleaning part on the direction of travel of the steel plate, the one or both sides for being configured at steel plate come
Cooling metal sheets,
The cleaning part includes：Knife is contacted by the coating layer with surface of steel plate to control plating adhesion amount；And refrigerant supplies
To portion, by including the extremely low geothermal liquid of liquid nitrogen or liquid helium to knife supply come cooling knife.
5. plater as claimed in claim 4, which is characterized in that
The cleaning part further includes chilling roller, the rear end of the knife of the chilling roller on steel plate direction of travel, along steel plate width side
To extension, in inside, cycle has extremely low geothermal liquid, is close to by the coating layer with surface of steel plate to control plating adhesion amount, and anxious
Fast cooling metal sheets.
6. the plater as described in any one of claim 2 to 5, which is characterized in that
The knife includes：Ontology extends along steel plate width direction, and in inside, cycle has extremely low geothermal liquid；And point, setting
In the front end of the ontology, contacted by the coating layer with steel plate to control plating adhesion amount.
7. the plater as described in any one of claim 2 to 5, which is characterized in that
The knife includes：Rotary body extends along steel plate width direction, is arranged in a manner of it can rotate, and in inside, cycle has pole
Cryogenic liquid；Point is arranged at the peripheral surface of rotary body interval spaced apart in the circumferential direction, passes through the plating with surface of steel plate
Coating contacts control plating adhesion amount；And rotary driving part, it is connect with the rotary body, by making rotary body rotation will
Side point is configured towards surface of steel plate.
8. plater as claimed in claim 6, which is characterized in that
The cleaning part further includes：Load sensor is configured at the knife, contact loading of the detection point to steel plate；And
Control unit controls point to steel plate according to the detection signal of the load sensor by moving knife relative to steel plate
Pressing force.
9. plater as claimed in claim 6, which is characterized in that
The point of the knife is cooled to -250 to 5 DEG C of temperature.
10. plater as claimed in claim 6, which is characterized in that
The point has the structure of the width direction configured in parallel relative to steel plate.
11. plater as claimed in claim 6, which is characterized in that
The point has the structure that the width direction relative to steel plate is arranged obliquely.
12. plater as claimed in claim 6, which is characterized in that
The point is bent to form, and has the structure that the moving direction along steel plate is configured with " V " shape or inverted " V " shape.
13. the plater as described in claim 3 or 5, which is characterized in that
The cleaning part further includes：Load sensor is configured at the chilling roller, contact loading of the detection chilling roller to steel plate；And
Control unit moves chilling roller to control compression of the chilling roller to steel plate according to the detection signal of the load sensor relative to steel plate
Power.
14. the plater as described in claim 3 or 5, which is characterized in that
The chilling roller is cooled to -250 to 5 DEG C of temperature.
15. the plater as described in claim 3 or 5, which is characterized in that
The chilling roller or the surface roughness of chill roll are average 0.1 to 3um.
16. plater as claimed any one in claims 1 to 3, which is characterized in that
The cooling body includes chill roll, and the chill roll extends along steel plate width direction, and in inside, cycle has extremely low geothermal liquid,
It is pressurizeed to the coating layer of surface of steel plate to give cold energy, the chill roll has by multiple chill rolls along the traveling side of steel plate
The structure configured to interval.
17. plater as claimed in claim 16, which is characterized in that
The cooling body further includes cooling zone, and the cooling tape wrapping is set at least two chill rolls, by with steel plate table
The coating layer in face is close to give cold energy.
18. plater as claimed in claim 17, which is characterized in that
The cooling zone is cooled to -250 to 5 DEG C of temperature.
19. plater as claimed in claim 17, which is characterized in that
The cooling end further includes：Load sensor is configured at the chill roll, contact loading of the detection cooling zone to steel plate；
And control unit moves chill roll to control cooling zone to steel according to the detection signal of the load sensor relative to steel plate
The pressing force of plate.
20. plater as claimed in claim 16, which is characterized in that
It is formed with the pattern for transcription to coating layer on the surface of the cooling zone.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150186322A KR101711856B1 (en) | 2015-12-24 | 2015-12-24 | Continuous galvanizing apparatus and method |
| KR10-2015-0186322 | 2015-12-24 | ||
| PCT/KR2016/015153 WO2017111523A1 (en) | 2015-12-24 | 2016-12-23 | Plating device and plating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108431284A true CN108431284A (en) | 2018-08-21 |
Family
ID=58410611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680075453.8A Pending CN108431284A (en) | 2015-12-24 | 2016-12-23 | Plater and coating method |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6667641B2 (en) |
| KR (1) | KR101711856B1 (en) |
| CN (1) | CN108431284A (en) |
| MX (1) | MX2018007843A (en) |
| WO (1) | WO2017111523A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322427A (en) * | 2021-08-02 | 2021-08-31 | 天津市新宇彩板有限公司 | Method for controlling spangles on surface of steel plate by adopting aluminum-zinc-magnesium plating solution |
| CN113463001A (en) * | 2021-07-01 | 2021-10-01 | 范安辉 | Metal plating device suitable for steel strips with different thicknesses |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101847567B1 (en) | 2015-12-24 | 2018-04-10 | 주식회사 포스코 | Coated steel sheet |
| JP7328542B2 (en) * | 2019-11-29 | 2023-08-17 | 日本製鉄株式会社 | Hot dip plated steel sheet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63111164A (en) * | 1986-10-30 | 1988-05-16 | Kawasaki Steel Corp | Apparatus for regulating amount of molten metal adhering by hot dipping |
| DE4134108C1 (en) * | 1991-10-15 | 1993-05-06 | Linde Ag, 6200 Wiesbaden, De | Steel strip metal coating - by passing through melt container, then up between two slot nozzles fed with e.g. liq. nitrogen@ to accelerate cooling |
| KR20040083251A (en) * | 2003-03-21 | 2004-10-01 | 주식회사 포스코 | A method for equalizing iron content of GA steel plate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR960000868Y1 (en) * | 1993-08-09 | 1996-02-02 | 포항종합제철 주식회사 | Cooling device of continuous hot-dipping tester |
| JPH09256131A (en) * | 1996-03-18 | 1997-09-30 | Kawasaki Steel Corp | Method for adjusting spangle of continuously hot dip galvanized steel strip |
| KR100362671B1 (en) * | 1998-12-22 | 2003-03-03 | 주식회사 포스코 | Cooling method of alloyed hot-dip galvanized steel sheet and cooling apparatus used therein |
| WO2012165838A2 (en) * | 2011-05-27 | 2012-12-06 | 동부제철 주식회사 | Plating composition, preparation method for plating steel using same, and plated steel coated with plating composition |
| JP6075103B2 (en) * | 2013-02-14 | 2017-02-08 | 東レ株式会社 | Endless belt metal mold and manufacturing method thereof |
-
2015
- 2015-12-24 KR KR1020150186322A patent/KR101711856B1/en active IP Right Grant
-
2016
- 2016-12-23 MX MX2018007843A patent/MX2018007843A/en unknown
- 2016-12-23 WO PCT/KR2016/015153 patent/WO2017111523A1/en active Application Filing
- 2016-12-23 CN CN201680075453.8A patent/CN108431284A/en active Pending
- 2016-12-23 JP JP2018533132A patent/JP6667641B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63111164A (en) * | 1986-10-30 | 1988-05-16 | Kawasaki Steel Corp | Apparatus for regulating amount of molten metal adhering by hot dipping |
| DE4134108C1 (en) * | 1991-10-15 | 1993-05-06 | Linde Ag, 6200 Wiesbaden, De | Steel strip metal coating - by passing through melt container, then up between two slot nozzles fed with e.g. liq. nitrogen@ to accelerate cooling |
| KR20040083251A (en) * | 2003-03-21 | 2004-10-01 | 주식회사 포스코 | A method for equalizing iron content of GA steel plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113463001A (en) * | 2021-07-01 | 2021-10-01 | 范安辉 | Metal plating device suitable for steel strips with different thicknesses |
| CN113322427A (en) * | 2021-08-02 | 2021-08-31 | 天津市新宇彩板有限公司 | Method for controlling spangles on surface of steel plate by adopting aluminum-zinc-magnesium plating solution |
| CN113322427B (en) * | 2021-08-02 | 2021-10-29 | 天津市新宇彩板有限公司 | Method for controlling spangles on surface of steel plate by adopting aluminum-zinc-magnesium plating solution |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017111523A1 (en) | 2017-06-29 |
| MX2018007843A (en) | 2018-11-09 |
| KR101711856B1 (en) | 2017-03-03 |
| JP6667641B2 (en) | 2020-03-18 |
| JP2018538448A (en) | 2018-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7093866B2 (en) | Plated steel sheet with fine and uniform plating composition | |
| CN108431284A (en) | Plater and coating method | |
| CN107971711A (en) | A kind of mirror copper band production technology for button fabric product | |
| CN105861999B (en) | High-purity fine grain metallic nickel hot extrusion rotary target material | |
| US6485570B2 (en) | Sink roll blade apparatus used in continuous molten metal plating apparatus and method for preventing occurrence of dents | |
| CN110923608B (en) | Wear-resistant coating of sink roller shaft sleeve, preparation method and application | |
| TWI510639B (en) | Magnesium alloy coil material | |
| JPS599259B2 (en) | How to make metal strips | |
| EP0245862B1 (en) | Liquid film coating of iron-based metals | |
| KR101711858B1 (en) | Continuous galvanizing apparatus and method | |
| JP2002220649A (en) | Device and method for removing adhered substance on surface of roll in molten metal plating bath | |
| CN108356074A (en) | A kind of coil of strip acid is flat to plate integrated processor group and coil of strip production method | |
| JP3206093B2 (en) | Roll for rolling and manufacturing method thereof | |
| CN208245443U (en) | A kind of flat plating integrated processor group of coil of strip acid | |
| JP2778896B2 (en) | Roll for rolling and manufacturing method thereof | |
| JPH06277608A (en) | Doctor blade for coating apparatus | |
| JPH07256404A (en) | Production of amorphous metal strip and its apparatus | |
| JPS62183943A (en) | Production for rapid cooling thin hoop metal | |
| CN110404970A (en) | A kind of stainless steel band hot-roll forming production technology | |
| JPH04350143A (en) | Roll for rolling and its production | |
| JPH0445286A (en) | Production of hot dipping bandlike metal | |
| JP2003117782A (en) | Polishing method and polishing device for top roll | |
| JPH03137033A (en) | Formation of outside film of roll for molding sheet glass | |
| JPH01275777A (en) | Apparatus for continuously plating metallic sheet | |
| JPH06207256A (en) | Bearing device of roll in molten metal bath and temperature control method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180821 |
|
| WD01 | Invention patent application deemed withdrawn after publication |