CN110312817A - Plater and coating method - Google Patents
Plater and coating method Download PDFInfo
- Publication number
- CN110312817A CN110312817A CN201780086979.0A CN201780086979A CN110312817A CN 110312817 A CN110312817 A CN 110312817A CN 201780086979 A CN201780086979 A CN 201780086979A CN 110312817 A CN110312817 A CN 110312817A
- Authority
- CN
- China
- Prior art keywords
- slot
- plating solution
- gas
- fritting
- pipe portion
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 18
- 238000007747 plating Methods 0.000 claims abstract description 169
- 238000002844 melting Methods 0.000 claims abstract description 46
- 230000008018 melting Effects 0.000 claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 67
- 239000011261 inert gas Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 49
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 15
- 239000011701 zinc Substances 0.000 description 15
- 229910052725 zinc Inorganic materials 0.000 description 15
- 229910001335 Galvanized steel Inorganic materials 0.000 description 5
- 239000008397 galvanized steel Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 235000014347 soups Nutrition 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 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
- C23C2/003—Apparatus
- C23C2/0034—Details related to elements immersed in bath
- C23C2/00342—Moving elements, e.g. pumps or mixers
- C23C2/00344—Means for moving substrates, e.g. immersed rollers or immersed bearings
-
- 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
- C23C2/003—Apparatus
- C23C2/0036—Crucibles
-
- 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
- C23C2/003—Apparatus
- C23C2/0038—Apparatus characterised by the pre-treatment chambers located immediately upstream of the bath or occurring locally before the dipping process
-
- 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
- C23C2/325—Processes or devices for cleaning the bath
-
- 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
- C23C2/50—Controlling or regulating the coating processes
- C23C2/52—Controlling or regulating the coating processes with means for measuring or sensing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/14—Charging or discharging liquid or molten material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
- F27D2007/023—Conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0078—Regulation of the speed of the gas through the charge
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Coating With Molten Metal (AREA)
Abstract
The present invention relates to a kind of platers and coating method that melting plating solution is transmitted to plating slot from fritting slot, which includes: fritting slot, accommodate melting plating solution；Plating slot accommodates the melting plating solution that plating is overlying on steel plate；Chute connects fritting slot and plating slot to transmit melting plating solution；The melting plating solution of fritting slot is transmitted to chute by pipe portion part；And gas supply part, supply a gas to pipe portion part.
Description
Technical field
The present invention relates to a kind of plater and coating methods, more particularly, to a kind of plating solution that will melt from fritting slot
It is transmitted to the plater and coating method of plating slot.
Background technique
In recent years, hot-dip galvanized steel sheet (Hot-dip Galvanized Steel Sheets, GI) and alloyed zinc hot dip galvanized
Steel plate (Galvannealed Steel Sheets, GA) is due to its excellent corrosion resistance and economy, as automobile or household
The increase in demand of the surface treated steel plate of electric appliance etc..
The hot-dip galvanized steel sheet (GI) and alloyed hot-dip galvanized steel plate (GA) are to regard to be plated as coated steel sheet
Strip (strip) be impregnated in the plating slot filled with fused zinc plating solution by furnace nose (snout), in sinking roller and stabilization
Plating is carried out between roller.However, in recent years, plater is configured as double pot systems (dual pot system), will be melted in
The similar alloy of fused zinc (Molten Zinc) or melting in fritting slot (Pre-melt Pot) passes through with scheduled inclination
The chute (Launder) of degree is transmitted in plating slot (main cooker (Main Pot) or work pot (Working Pot)), and by plating
Steel plate is immersed in the plating slot to carry out plating.
In continuous hot-dipping technique (CGL), need to consume by chute from fritting slot reception plating in plating slot
Plating liquid measure plating solution.Large-scale steel ingot (ingot) is put into fritting slot, spills into plating solution in plating slot by chute, from
And it is capable of supply that plating solution, and in the process, need to keep temperature and atmosphere in chute, to prevent plating solution from solidifying.
But in the continuous hot-dipping technique, there is a problem of that the supply rate of molten soup is non-constant and slow.Separately
Outside, it is difficult to adjust the ingredient of the plating bath in plating slot.In addition, molten in the oxide contaminant plating slot generated inside chute
As a result soup causes the surface defect of plated product.In addition, need to keep the temperature inside chute with gas burner,
In this case, there are many difficulties in terms of plant maintenance, such as remove the oxide etc. generated as by-product.
Publication bulletin the 10-2012-0071832nd discloses material cooling conveying device, but still having will give up
Heat dissipation arrives the problems in atmosphere.
Summary of the invention
(1) technical problems to be solved
The embodiment of the present invention provides a kind of plater and coating method, can continuously supply from fritting slot in plating
The plating solution of the plating liquid measure consumed in slot, without installing additional gas burner in chute, and with it is straight in fritting slot
It is unrelated to connect plating solution overflow (overflow) caused by investment steel ingot.
(2) technical solution
According to an aspect of the present invention, a kind of plater can be provided, comprising: fritting slot accommodates melting plating solution；Plating
Slot is covered, the melting plating solution that plating is overlying on steel plate is accommodated；Chute, it is described molten to transmit to connect the fritting slot and the plating slot
Melt plating solution；The melting plating solution of the fritting slot is transmitted to the chute by pipe portion part；And gas supply part, by gas
Body is supplied to the pipe portion part.
In addition, the inflow entrance that the melting plating solution of the fritting slot flows into can be impregnated in institute in the pipe portion part
It states in the melting plating solution of fritting slot.
In addition, the inflow entrance of the pipe portion part can be located at the melting plating solution water level accommodated in the fritting slot
Less than half.
In addition, the supply department of the supply gas of the gas supply part can be located at the described molten of the fritting slot
The outlet that the gas is transmitted to the pipe portion part can be located at the stream of the pipe portion part by the surface for melting plating solution
Inlet inside.
In addition, the gas that the gas supply part is supplied can be inert gas or non-oxidizing gas.
In addition, the gas supply part can also include the nozzle for capableing of adjusting gas flow.
In addition, the pipe portion part can also include the interconnecting piece for connecting and being rotatably arranged with the chute.
In addition, the pipe portion part may be configured to move along the vertical direction.
In addition, the pipe portion part may be configured to move along the vertical direction by the component of rack-and-pinion.
In addition, the plater can also include: filter, filtering is transmitted to the plating slot from the fritting slot
Impurity in the melting plating solution.
According to another aspect of the present invention, a kind of coating method can be provided, this method is from the pre- of generation melting plating solution
The melting plating solution is transmitted in the plating slot with the melting plating solution coated steel sheet by molten slot, wherein to the connection fritting
Slot and the plating slot supply gas to transmit the chute of the melting plating solution.
In addition, the temperature of the gas can be configured to 350 degrees Celsius or more and 1300 degrees Celsius of temperature below.
In addition, the gas can be inert gas or non-oxidizing gas.
In addition, the melting plating solution can be transmitted to the chute by the way that the pipe portion part of the fritting slot is arranged in, it is described
Gas can be supplied to the inflow entrance of the pipe portion part in the melting plating solution for being impregnated in the fritting slot.
Furthermore it is possible to supply the gas to reduce the specific gravity of the melting plating solution in the pipe portion part.
Furthermore it is possible to be adjusted using the flow information of the melting plating solution consumed in the plating slot from described pre-
Molten slot is transmitted to the flow of the melting plating solution of the chute.
Furthermore it is possible to adjust the gas using the flow information of the melting plating solution consumed in the plating slot
Flow.
In addition, the flow of the gas can be twice of the flow of the melting plating solution consumed in the plating slot
More than.
(3) beneficial effect
The plater and coating method of embodiment according to the present invention can keep the plating bath horizontal plane of plating slot, temperature
It is constant with component, and can accurately control, therefore the quality of coated steel sheet can be improved.
In addition, preventing from flowing into oxide by chute, so as to improve the surface quality of coated steel sheet.
In addition, it is not necessary that using the gas burner for keeping temperature inside chute, and can prevent from producing at this time
The generation of raw oxide.It is possible thereby to reduce the maintenance cost of plater.
In addition, can manufacture into easy to disassemble and replace the knot for injecting the nozzle and pipe portion part of high temperature inert gas
Structure so as to improve useful life longevity and has excellent operational stability.
Detailed description of the invention
Fig. 1 is the figure for schematically showing the plater 1 of embodiment according to the present invention.
Fig. 2 is the figure for illustrating the plating technic in plating slot 200.
Fig. 3 is the enlarged drawing of the gas supply device 400 of first embodiment according to the present invention.
Fig. 4 is the enlarged drawing of the gas supply device 401 of second embodiment according to the present invention.
Specific embodiment
In the following, the embodiment of the present invention is described in detail referring to attached drawing.
Embodiment explained below is to sufficiently pass on this hair to general technical staff of the technical field of the invention
Bright thought and the example provided.The present invention is not limited to embodiment explained below, can also otherwise embody.
In order to clearly demonstrate the present invention, the part unrelated with explanation is omitted in figure, and for convenience, can amplify expression group in figure
Width, length and thickness of part etc..Identical appended drawing reference indicates identical component throughout the specification.
Fig. 1 is the figure for schematically showing the plater 1 of embodiment according to the present invention.
Referring to Fig.1, the plater 1 of embodiment according to the present invention includes: fritting slot (Premelt Pot) 100, makes zinc
It melts the fused zinc (Molten Zinc) to generate as melting plating solution or accommodates melting plating solution；Plating slot (main cooker (Main
Pot) or work pot (Working Pot)) 200, accommodate the fused zinc of plating on the steel plate；And chute (gutter channel,
Launder) 300, between fritting slot 100 and plating slot 200.
On the other hand, the plating solution used in the plater of the embodiment of the present invention is not limited to fused zinc.It is plating
A variety of plating solutions including such as zinc (Zn), aluminium (Al) or magnesium (Mg) can be used in coating device.
Steel ingot (Ingot) I is put into fritting slot 100 and is dissolved in plating bath.
Chute 300 can be configured to have and incline for connecting fritting slot 100 and plating slot 200 to transmit plating solution
Gradient.In this case, plating solution is set above what plating solution was flowed out from plating slot 200 from the height that fritting slot 100 flows into
Highly, it is moved to plating solution inside plating slot 200 by potential energy.
Fig. 2 is the figure for illustrating the plating technic in plating slot 200.
Referring to Fig. 2, the strip S being heat-treated in annealing furnace (not shown) flows into the plating bath of plating slot 200 by furnace nose 210
In after when leaving plating slot 200, fused zinc is attached on the surface of strip S.The strip S of plating fused zinc is in plating slot 200
In by sinking roller 220 change direction, and by guide reel 230 guide to vertically move.
Coating when by plating slot 200 on the surface coated in strip S passes through the gas that is sprayed at a high speed by air knife 240
It is cooling when then passing through cooling device (not shown) and solidify etc. being adjusted to thickness appropriate, then (do not shown by upper roll
Change direction out) and is moved to next process.
Fig. 3 is the enlarged drawing of the gas supply device 400 of first embodiment according to the present invention.
Referring to Fig. 3, gas supply device 400 according to first embodiment may include: pipe portion part 410, accommodate cleaning plating
Liquid；Gas supply part 420 supplies gas to the inside of pipe portion part 410；And filter 430, filtering flow into chute 300
Impurity in plating solution.
Pipe portion part 410 can be hollow tube shape, and one side is opened and forms inflow entrance 411, and the other side is opened
And outflux 412 is formed, and the pipeline 413 of connection inflow entrance 411 and outflux 412 can be formed.For example, pipe portion part 410
It can be arranged along the vertical direction, flow into mouth 411 and be immersed in plating bath.
Also, inflow entrance 411 can be located at the bottom of fritting slot 100, in the clean plating bath of inner containment.In addition, stream
Outlet 412 can be located higher than the position of plating bath horizontal plane (level) L and be connected to chute 300.
Also, pipe portion part 410 by metal or nonmetallic can be made.
Furthermore it is possible to according to the amount of the plating solution to be supplied come the appearance for the part of selecting pipe component 410 being immersed in plating bath
Product.That is, can be selected according to the amount of the plating solution to be supplied in the internal diameter in advance in determined situation of pipeline 413
The impregnating depth H-h of pipe portion part 410.
And it is possible to prepare internal diameter and the impregnating depth H-h of pipeline 413 to ensure pumpable lift h.For example, dipping
Depth H-h can be set to more than half of overall height H.Preferably, impregnating depth H-h can be set to the 70% of overall height H
More than.In this case, overall height H can be calculated by the difference in height between inflow entrance 411 and outflux 412.
And it is possible to adjust lift h to meet the distance between plating bath horizontal plane L and outflux 412.Pipe portion is shown in figure
The height of plating bath inside part 410 is higher than the state of the height of outflux 412.
Gas supply part 420 extends so that one side is arranged outside plating bath, and the other side is arranged in pipe portion part 410
Portion, so as to which high temperature inert gas or non-oxidizing gas to be distributed in the pipeline 413 for accommodating clean plating solution.
Also, the supply department of the supply gas of gas supply part 420 can be located at the top on plating bath surface, and by gas
The outlet that body is transmitted to pipe portion part 410 can be located at 411 inside of inflow entrance of pipe portion part 410.For example, gas supply part
420 can be configured to include reclinate U-shaped so that outlet upward.In this case, it is discharged by outlet
Gas can be moved in pipeline 413 in such a way that bubble rises in plating bath.
Also, outlet can be only fitted to higher position in 411 inside of inflow entrance of pipe portion part 410.It therefore, can be to prevent
Only pass through the gas loss of outlet discharge to the outside of pipe portion part 410.
High temperature inert gas is supplied to inside pipe portion part 410 to reduce and be contained in pipeline 413 by gas supply part 420
The density of plating bath, so as to which plating solution is supplied in plating slot 200 by chute 300.
Specifically, when high temperature inert gas to be supplied to pipe portion 410 inside of part comprising cleaning plating solution, in pipeline 413
Plating solution and be mixed with each other by the inert gas that inflow entrance 411 injects to reduce the specific gravity of the per unit volume of plating bath.As a result,
The pressure reduction of plating bath inside pipe portion part 410, therefore the plating bath inside pipe portion part 410 is due to the plating bath outside pipe portion part 410
Pressure and rise, so as to ensure lift h.
Also, gas supply part 420 may include nozzle 421, can adjust the inert gas being ejected into plating bath
Flow.
The supply flow of inert gas is associated with the delivery flow for the plating bath for being supplied to plating slot 200.That is, gas is supplied
Component 420 controls the flow of high temperature inert gas using nozzle 421, so as to adjust the plating solution for being supplied to plating slot 200
Supply flow.
For example, needing twice or more of the flow with the flow of plating solution to be supplied when lift h is the half of overall height H
Supplying inert gas.
On the other hand, the temperature of the inert gas injected by gas supply part 420 can be at 350 degrees Celsius to 1300
Between degree Celsius.Also, plater 1 may include the boiler (not shown) that can adjust inert gas temperature.
The inert gas of supply can be heated to the zinc of plating bath ingredient by gas supply part 420 from 350 degrees Celsius or more
Volatilization temperature i.e. 1300 degree Celsius hereinafter, inert gas is ejected into pipe portion part 410.
In addition, high temperature inert gas can increase available lift h, and when the plating bath for being mixed with the inert gas
When by long chute 300, heat insulation function can also be performed to prevent plating bath from solidifying.In addition, high temperature inert gas can prevent from plating
The oxidative phenomena of bath prevents the surface defect of the strip S as caused by the plating bath aoxidized.Furthermore it is possible to by suitably adjusting
The temperature of section supply gas, maintenance cost drop compared with the conventional situation for using oxidizing gas burner inside chute 300
It is low.
In addition, continuous plating technic can be carried out when using gas supply part 420.In continuous plating technic, plating
The clean plating of plating liquid measure that the plating in plating slot 200 is overlying on strip S and is consumed can be received from fritting slot 100 by covering slot 200
Liquid.And it can automatically control or the plating solution supplied in continuous plating technic is manually controlled according to the judgement of operator
Amount.
The interconnecting piece in pipe portion part 410 and chute 300 can be set in filter 430, to prevent the plating bath in fritting slot 100
In impurity be mixed into plating slot 200.And filter 430 can be formed as mesh shape, for example, can pass through 50 μm or more
And 5mm grid below stops the impurity in plating bath.And filter 430 can be heated to 400 to 700 degrees Celsius it
Between high temperature in the state of using or using ultrasonic wave prevent the absorption of impurity.
In order to check the performance of gas supply device 400, the inspection result carried out in the lab is shown in Table 1 below.
In table 1, the time assumes that the specific gravity of fused zinc is 6.5g/cm based on the time needed for filling 2l bathtub3,
The deliverability of fused zinc is tested.
[table 1]
According to above-mentioned experimental result, when the use of outer diameter is 50mm and pipe portion part 410 that internal diameter is 30mm and plating bath in
When impregnating depth H-h is 900mm, the volume for being immersed in the part in plating bath is 636cm2, at this point, working as 5l/ minutes gas
When injection pipe 410 inside of component, about 80l/ hours plating solution can be supplied.In addition, being 6.5g/cm in specific gravity3Fused zinc
In the case of, plating solution can be supplied with 500kg/ hours efficiency.
Fig. 4 is the enlarged drawing of the gas supply device 401 of second embodiment according to the present invention.
Referring to Fig. 4, the adjustable impregnating depth H-h of gas supply device 401 according to the second embodiment.I.e., it is possible to adjust
Save position or the depth of pipe portion part 410.
For example, pipe portion part 410 can be configured to move up and down by way of rack-and-pinion.Rack gear 415 can
To be arranged on the side of pipe portion part 410, pinion gear 416 be can be set on the side of fritting slot 100.And pinion gear 416
It can be configured to be electrically connected to dynamic rotation of the motor 417 to pass through motor 417.In addition, track can be set in pipe portion part
410 outside or the inside of fritting slot 100, with moving up and down for guiding tube component 410.
In addition, the position of rack gear 415 and pinion gear 416 can change.That is, pinion gear can be set in pipe portion part
410 side, rack gear 415 can be set in the side of fritting slot 100.
In addition, being different from shown in Fig. 4, the upper and lower position of pipe portion part 410 can be changed by other different modes.Example
Such as, pipe portion part 410 can be configured to its upper and lower position and be changed by cylinder, chain or other gear combinations.
In addition, gas supply device 401, which can be configured to pipe portion part 410 and the interconnecting piece 414 of chute 300, to be become
Change.For example, when the upper and lower position of pipe portion part 410 changes, and the combination angle of chute 300 can change.
Interconnecting piece 414 can be configured to rotatable structure.For example, interconnecting piece 414 can be configured to hinge arrangement.
Referring to one embodiment shown in the accompanying drawings, the present invention is described, but this is only example, this technology neck
Domain one of ordinary skill appreciates that may be implemented on this basis it is a variety of change and equivalent other embodiments.Therefore, originally
The true scope of invention should be determined only by claims.
Claims (18)
1. a kind of plater, comprising:
Fritting slot accommodates melting plating solution；
Plating slot accommodates the melting plating solution that plating is overlying on steel plate；
Chute connects the fritting slot and the plating slot to transmit the melting plating solution；
The melting plating solution of the fritting slot is transmitted to the chute by pipe portion part；And
Gas supply part supplies a gas to the pipe portion part.
2. plater according to claim 1, wherein
In the pipe portion part, the inflow entrance that the melting plating solution of the fritting slot flows into is impregnated in the described of the fritting slot
It melts in plating solution.
3. plater according to claim 2, wherein
The inflow entrance of the pipe portion part is located at less than half of the melting plating solution water level accommodated in the fritting slot.
4. plater according to claim 2, wherein
The supply department of the supply gas of the gas supply part is located at the surface of the melting plating solution of the fritting slot
The outlet that the gas is transmitted to the pipe portion part is located on the inside of the inflow entrance of the pipe portion part by top.
5. plater according to claim 1, wherein
The gas that the gas supply part is supplied is inert gas or non-oxidizing gas.
6. plater according to claim 1, wherein
The gas supply part further includes the nozzle for capableing of adjusting gas flow.
7. plater according to claim 1, wherein
The pipe portion part further includes the interconnecting piece for connecting and being rotatably arranged with the chute.
8. plater according to claim 1, wherein
The pipe portion part is configured to move along the vertical direction.
9. plater according to claim 8, wherein
The pipe portion part is configured to move along the vertical direction by the component of rack-and-pinion.
10. plater according to claim 1, further includes:
Filter filters the impurity from the melting plating solution that the fritting slot is transmitted to the plating slot.
11. a kind of coating method, this method is that the melting plating solution is transmitted to described in use from the fritting slot for generating melting plating solution
In the plating slot for melting plating solution coated steel sheet,
Wherein, the chute that the melting plating solution is transmitted to the fritting slot and the plating slot is connected supplies gas.
12. coating method according to claim 11, wherein
The temperature of the gas is configured to 350 degrees Celsius or more and 1300 degrees Celsius of temperature below.
13. coating method according to claim 11, wherein
The gas is inert gas or non-oxidizing gas.
14. coating method according to claim 11, wherein
The melting plating solution is transmitted to the chute by the way that the pipe portion part of the fritting slot is arranged in,
The gas is supplied to the inflow entrance of the pipe portion part in the melting plating solution for being impregnated in the fritting slot.
15. coating method according to claim 14, wherein
The gas is supplied to reduce the specific gravity of the melting plating solution in the pipe portion part.
16. coating method according to claim 11, wherein
Using the flow information of the melting plating solution consumed in the plating slot, adjusting is transmitted to described from the fritting slot
The flow of the melting plating solution of chute.
17. coating method according to claim 11, wherein
Using the flow information of the melting plating solution consumed in the plating slot, the flow of the gas is adjusted.
18. coating method according to claim 17, wherein
The flow of the gas is twice or more of the flow of the melting plating solution consumed in the plating slot.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160178461A KR101840673B1 (en) | 2016-12-23 | 2016-12-23 | Apparatus of plating and method of plating |
| KR10-2016-0178461 | 2016-12-23 | ||
| PCT/KR2017/015397 WO2018117755A1 (en) | 2016-12-23 | 2017-12-22 | Plating apparatus and plating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110312817A true CN110312817A (en) | 2019-10-08 |
| CN110312817B CN110312817B (en) | 2021-08-27 |
Family
ID=61900985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780086979.0A Active CN110312817B (en) | 2016-12-23 | 2017-12-22 | Plating apparatus and plating method |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR101840673B1 (en) |
| CN (1) | CN110312817B (en) |
| MX (1) | MX2019007631A (en) |
| WO (1) | WO2018117755A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04168255A (en) * | 1990-10-31 | 1992-06-16 | Nkk Corp | Continuous hot dipping bath |
| JPH07331401A (en) * | 1994-06-10 | 1995-12-19 | Nkk Corp | Dross recovering device of hot dip metal coating bath |
| JPH0874016A (en) * | 1994-09-07 | 1996-03-19 | Nkk Corp | Dross removing device of plating bath |
| CN201809424U (en) * | 2010-08-12 | 2011-04-27 | 攀钢集团钢铁钒钛股份有限公司 | Premelting pot system |
| KR20130031603A (en) * | 2011-09-21 | 2013-03-29 | 포항공과대학교 산학협력단 | Pre-melt pot controlling outflow of molten zinc using screw |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0892710A (en) * | 1994-09-27 | 1996-04-09 | Kawasaki Steel Corp | Discharge of dross in galvanizing bath and device therefor |
| KR101160007B1 (en) * | 2010-08-30 | 2012-06-25 | 현대제철 주식회사 | Blow Pipe Structure for Blast Furnace |
| KR20130040305A (en) * | 2011-10-14 | 2013-04-24 | 주식회사 포스코 | Zinc ingot melting apparatus |
| KR20150071552A (en) * | 2013-12-18 | 2015-06-26 | 주식회사 포스코 | Apparatus and method for hot dipping coating |
-
2016
- 2016-12-23 KR KR1020160178461A patent/KR101840673B1/en active IP Right Grant
-
2017
- 2017-12-22 WO PCT/KR2017/015397 patent/WO2018117755A1/en active Application Filing
- 2017-12-22 CN CN201780086979.0A patent/CN110312817B/en active Active
- 2017-12-22 MX MX2019007631A patent/MX2019007631A/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04168255A (en) * | 1990-10-31 | 1992-06-16 | Nkk Corp | Continuous hot dipping bath |
| JPH07331401A (en) * | 1994-06-10 | 1995-12-19 | Nkk Corp | Dross recovering device of hot dip metal coating bath |
| JPH0874016A (en) * | 1994-09-07 | 1996-03-19 | Nkk Corp | Dross removing device of plating bath |
| CN201809424U (en) * | 2010-08-12 | 2011-04-27 | 攀钢集团钢铁钒钛股份有限公司 | Premelting pot system |
| KR20130031603A (en) * | 2011-09-21 | 2013-03-29 | 포항공과대학교 산학협력단 | Pre-melt pot controlling outflow of molten zinc using screw |
Also Published As
| Publication number | Publication date |
|---|---|
| MX2019007631A (en) | 2019-12-09 |
| WO2018117755A1 (en) | 2018-06-28 |
| CN110312817B (en) | 2021-08-27 |
| KR101840673B1 (en) | 2018-03-22 |
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