CN106319416A - Control method for zinc spangle size of hot-dip aluminum and zinc coated steel plate - Google Patents
Control method for zinc spangle size of hot-dip aluminum and zinc coated steel plate Download PDFInfo
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- CN106319416A CN106319416A CN201610994289.2A CN201610994289A CN106319416A CN 106319416 A CN106319416 A CN 106319416A CN 201610994289 A CN201610994289 A CN 201610994289A CN 106319416 A CN106319416 A CN 106319416A
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- zinc
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating With Molten Metal (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention provides a control method for a zinc spangle size of a hot-dip aluminum and zinc coated steel plate. According to the method, the acid pickling process, the rolling process and the hot-dip aluminum and zinc coating process are simultaneously controlled; the rinsing water conductivity and temperature are respectively within 50mu s/m and below 70 DEG C; the acid feeding volume is within 2.0-3.5m<3>/h; the rolling emulsion oil concentration and impurity oil are respectively within 1.5-3.0% and less than 18%; the iron soap content in the rolling emulsion is within 0.5%; after an aluminum and zinc plating unit is cleaned, the residual oil volume is controlled within 80mg/m<2>; the high/low power switching time of zinc pot is controlled within 60min; the titanium content is stably 0.08-0.125ppm of the plating solution volume. According to the control method, the zinc spangle size can be effectively controlled and a series of hot-dip aluminum and zinc coated steel plates in uniform zinc spangle size in batches can be acquired.
Description
Technical field
The present invention relates to hot-dip aluminizing zinc steel technology of preparing, it relates in particular to one can effectively control hot-dip aluminizing zinc
The method of the zinc flower size of steel plate (such as, strip steel).
Background technology
Generally, Al-Zn coated steel has the plurality of advantages such as the best corrosion resistance, and its surface has beautiful zinc flower,
Can be applicable to all many-sides such as building outside plate, automobile, household electrical appliances.
Inventor finds: generally the hot-dip aluminizing zinc product zinc flower size rank of hot-dip aluminizing zinc unit production is between 1～5#,
Can not realize stability contorting, particularly different coiled sheets, the zinc of different batches coiled sheet spend difference in size bigger.This also results in user couple
The use difficulty of hot-dip galvanizing sheet steel is relatively big, and the stock amount simultaneously produced is bigger.
Additionally, many applications of hot-dip aluminizing zincium steel plate are required to its zinc flower, size is basically identical, zinc flower size
Uniformly.Such as, as the electrical control cubicles raw material of one of the main application fields of hot-dip aluminizing zincium steel plate, i.e. require that hot-dip aluminizing zincium steel plate produces
The zinc flower size of product is basically identical, and zinc is spent uniformly.
Summary of the invention
It is an object of the invention to solve at least one in deficiencies of the prior art.
An object of the present invention is to solve zinc flower bigger the asking of difference in size of different coiled sheet, different batches coiled sheet
Topic.
In order to solve the problems referred to above, an aspect of of the present present invention provides the controlling party of a kind of hot-dip aluminizing zincium steel plate zinc flower size
Method.Described control method includes simultaneously to acid cleaning process, rolling mill practice and the control of hot-dip aluminizing zinc technique, wherein, described to acid
The control washing technique includes: control rinsing electrical conductivity of water, within 50 μ s/m, to be controlled by rinse water temperature below 70 DEG C,
And acid intake amount is controlled 2.0～3.5m3Between/h；The described control to rolling mill practice includes: by rolling emulsion oil dense
Degree controls between 1.5～3.0%, and being controlled by miscellaneous weight of oil percentage composition in rolling emulsion is less than 18%, and will rolling
In emulsion, iron soap weight percentage controls within 0.5%；The described control to hot-dip aluminizing zinc technique includes: at aluminum-zinc alloy
After unit cleans, resid amount is controlled at 80mg/m2Within, the switching time of zinc pot high-low power is controlled within 60min,
Add titanium in the plating solution, so that Ti content stably accounts for the 0.08～0.125ppm of plating solution amount.
In an exemplary embodiment of the present invention, in the described control to acid cleaning process, can be by rinsing electrical conductivity of water control
Rinse water temperature, within 35 μ s/m, can be controlled below 50～60 DEG C, and can be controlled by acid intake amount 2.4～3.0m by system3/
Between h.
In an exemplary embodiment of the present invention, in the described control to rolling mill practice, can by rolling emulsion oil dense
Degree controls between 2.0～2.8%, can control miscellaneous weight of oil percentage composition in rolling emulsion for less than 14%, and can be by
In rolling emulsion, iron soap weight percentage controls within 0.4%.
In an exemplary embodiment of the present invention, in the described control to hot-dip aluminizing zinc technique, resid amount can be controlled
70mg/m2Within, titanium can be added in the plating solution, so that Ti content stably accounts for the 0.09～0.11ppm of plating solution amount.
Compared with prior art, the method for the present invention can effectively control the zinc flower size of hot-dip aluminizing zincium steel plate, and can
Obtain the hot-dip aluminizing zincium steel plate with the zinc flower uniform a series of batches of size.
Detailed description of the invention
Hereinafter, exemplary embodiment will be combined to describe the control of the hot-dip aluminizing zincium steel plate zinc flower size of the present invention in detail
Method processed.
The zinc existed for prior art spends size to be difficult to the problem of stability contorting, especially for different coiled sheets or difference
The zinc of batch half volume spends the problem that difference in size is bigger, and inventor is in hot-dip aluminizing zincium steel plate production method is carefully studied in research
All Alternatives, operation, find acid cleaning process, rolling mill practice and hot-dip aluminizing zinc technique are controlled simultaneously, it is possible to effectively control
Heat the zinc flower size of Al-Zn coated steel, and can be formed there is evenly sized zinc flower.
In one exemplary embodiment of the present invention, the control method of hot-dip aluminizing zincium steel plate zinc flower size is by the most right
The mode that acid cleaning process, rolling mill practice and hot-dip aluminizing zinc technique are controlled realizes.
(1) control to acid cleaning process
Specifically, to the control content of acid cleaning process can be: rinsing electrical conductivity of water is controlled within 50 μ s/m,
Rinse water temperature is controlled below 70 DEG C, and hydrochloric acid acid intake amount is controlled 2.0～3.5m3Between/h.So that it is guaranteed that strip steel
Pickling rear surface uniform color.
Additionally, it is possible to rinsing electrical conductivity of water is controlled within 35 μ s/m, rinse water temperature is controlled at 50～60 DEG C
Hereinafter, and by acid intake amount control 2.4～3.0m3Between/h, it is ensured that strip pickling rear surface uniform color, shinny.
(2) control to rolling mill practice
Specifically, to the control content of rolling mill practice can be: the concentration of rolling emulsion oil is controlled 1.5～
Between 3.0%, being controlled by miscellaneous weight of oil percentage composition in rolling emulsion is less than 18%, and by iron soap weight in rolling emulsion
Amount percentage composition controls within 0.5%, improves rolling lubrication performance
Additionally, it is possible to the concentration of rolling emulsion oil is controlled between 2.0～2.8%, by oil miscellaneous in rolling emulsion
Weight percentage controls to be less than 14%, and is controlled within 0.4% by iron soap weight percentage in rolling emulsion.Enter
One step bar rolling lubrication performance
(3) control to hot-dip aluminizing zinc technique
Specifically, to the control content of hot-dip aluminizing zinc technique can be: after aluminum-zinc alloy unit cleans, by resid amount control
System is at 80mg/m2Within, by zinc pot high-low power, (here, putting into high power is exactly to heat to zinc liquid, improves temperature；Put into low
Power stablizes zinc liquid temperature exactly) switching time control within 60min, add titanium in the plating solution, so that Ti content is stable
Account for the 0.08～0.125ppm of plating solution amount, improve zinc flower uniformity.
Additionally, it is possible to resid amount is controlled at 70mg/m2Within, add titanium in the plating solution, so that Ti content stably accounts for
The 0.09～0.11ppm of plating solution amount, it is possible to more accurately control zinc flower size uniformity.
In another exemplary embodiment of the present invention, produce the side of the hot-dip aluminizing zincium steel plate with uniform zinc flower size
Method includes acid cleaning process, rolling mill practice, hot-dip aluminizing zinc technique, and described method is simultaneously to acid cleaning process, rolling mill practice and heat
Aluminum-zinc alloy technique is controlled according to above-mentioned condition.
The exemplary embodiment of the present invention is further illustrated below in conjunction with concrete example.
Example 1
Electrical control cubicles hot-dip aluminizing zincium steel plate product is produced continuously with continuous zinc/aluminium/aluminium zinc coating unit.
Pickling-rinsing water conductivity controls within 35 μ s/m, and it is 57 ± 2 DEG C that rinse water temperature controls, and acid intake amount control is
2.9±0.3m3/ h, acid is hydrochloric acid.Rolling pass presses 4 passes, and emulsion oil concentration controls, between 2.4 ± 0.4%, to roll
Emulsion hetero oil content processed is less than 16%, and rolling emulsion iron soap controls within 0.4%.After aluminum-zinc alloy unit cleans, residual
Fuel-flow control is at 70mg/m2Within, controlling the switching time of zinc pot high-low power is 50min, adds the titanium of trace in the plating solution,
Ti content is basicly stable is 0.09 ± 0.01ppm.In this example, the composition of plating solution is specially 55%Al, 1.6%Si and 43%
Zn。
The early, middle, late stage product of obtained hot-dip aluminizing zincium steel plate is sampled detection.After testing, the heat obtained
On Al-Zn coated steel, zinc flower size rank controls between 2～3#.
Example 2
Continuous zinc/aluminium/aluminium zinc coating unit produces household electrical appliances hot-dip aluminizing zinc product continuously.
Pickling-rinsing water conductivity controls between 40 ± 5 μ s/m, and rinse water temperature controls, between 52 ± 2 DEG C, to enter acid
Amount control is 2.7 ± 0.3m3/ h, acid is hydrochloric acid.Rolling pass presses 6 passes, and emulsion oil concentration controls 2.1 ±
0.3%, rolling emulsion hetero oil content is less than 14%, and rolling emulsion iron soap controls within 0.45%.Aluminum-zinc alloy unit is clear
After washing, resid amount controls at 80mg/m2Within, within the switching time of zinc pot high-low power controls 55min, add in the plating solution
The titanium of trace, Ti content is basicly stable is 0.11 ± 0.005ppm.
The early, middle, late stage product of obtained hot-dip aluminizing zincium steel plate is sampled detection.After testing, the heat obtained
On Al-Zn coated steel, zinc flower size rank controls between 1.5～2#.
In sum, the present invention can effectively control hot-dip aluminizing zincium steel plate (including the hot-dip aluminizing zincium steel plate of different batches)
Zinc flower size, thus obtain the hot-dip aluminizing zincium steel plate with uniform zinc flower size.Such as, the method for the present invention prepares
Different batches hot-dip aluminizing zincium steel plate zinc flower difference in size be controllable to 2-3# zinc flower, 2-3# zinc flower ratio control 92%
Above.
Although describing the present invention already in connection with exemplary embodiment above, but those of ordinary skill in the art should be clear
Chu, in the case of without departing from spirit and scope by the claims, can carry out various amendment to above-described embodiment.
Claims (4)
1. the control method of a hot-dip aluminizing zincium steel plate zinc flower size, it is characterised in that described control method includes simultaneously to acid
Wash technique, rolling mill practice and the control of hot-dip aluminizing zinc technique, wherein,
The described control to acid cleaning process includes: controlled by rinsing electrical conductivity of water within 50 μ s/m, by rinse water temperature control
System is below 70 DEG C, and is controlled by acid intake amount 2.0～3.5m3Between/h；
The described control to rolling mill practice includes: control between 1.5～3.0% by the concentration of rolling emulsion oil, will rolling
In emulsion, miscellaneous weight of oil percentage composition controls to be less than 18%, and is controlled by iron soap weight percentage in rolling emulsion
Within 0.5%；
The described control to hot-dip aluminizing zinc technique includes: after aluminum-zinc alloy unit cleans, control resid amount at 80mg/m2Within,
The switching time of zinc pot high-low power is controlled within 60min, adds titanium in the plating solution, so that Ti content stably accounts for plating solution
The 0.08～0.125ppm of amount.
The control method of hot-dip aluminizing zincium steel plate zinc the most according to claim 1 flower size, it is characterised in that described to pickling
In the control of technique, rinsing electrical conductivity of water is controlled within 35 μ s/m, rinse water temperature is controlled below 50～60 DEG C,
And acid intake amount is controlled 2.4～3.0m3Between/h.
The control method of hot-dip aluminizing zincium steel plate zinc the most according to claim 1 flower size, it is characterised in that described to rolling
In the control of technique, the concentration of rolling emulsion oil is controlled between 2.0～2.8%, by weight of oil miscellaneous in rolling emulsion
Percentage composition controls to be less than 14%, and is controlled within 0.4% by iron soap weight percentage in rolling emulsion.
The control method of hot-dip aluminizing zincium steel plate zinc the most according to claim 1 flower size, it is characterised in that described to hot dip
In the control of aluminum zinc technology, resid amount is controlled at 70mg/m2Within, add titanium in the plating solution, so that Ti content stably accounts for
The 0.09～0.11ppm of plating solution amount.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610994289.2A CN106319416B (en) | 2016-11-11 | 2016-11-11 | A kind of control method of hot-dip aluminizing zincium steel plate spangle size |
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| CN201610994289.2A CN106319416B (en) | 2016-11-11 | 2016-11-11 | A kind of control method of hot-dip aluminizing zincium steel plate spangle size |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014315A (en) * | 2019-12-20 | 2020-04-17 | 马钢(合肥)板材有限责任公司 | Method for improving surface reflectivity of rolled hard coil strip steel |
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