CN105316612B - Production method of continuous hot-dip galvanized product - Google Patents
Production method of continuous hot-dip galvanized product Download PDFInfo
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- CN105316612B CN105316612B CN201510836495.6A CN201510836495A CN105316612B CN 105316612 B CN105316612 B CN 105316612B CN 201510836495 A CN201510836495 A CN 201510836495A CN 105316612 B CN105316612 B CN 105316612B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 209
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 206
- 239000011701 zinc Substances 0.000 claims abstract description 206
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 131
- 239000010959 steel Substances 0.000 claims abstract description 131
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 229910052787 antimony Inorganic materials 0.000 claims description 31
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 31
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 23
- 239000008397 galvanized steel Substances 0.000 claims description 23
- 238000005498 polishing Methods 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- QNDQILQPPKQROV-UHFFFAOYSA-N dizinc Chemical compound [Zn]=[Zn] QNDQILQPPKQROV-UHFFFAOYSA-N 0.000 claims 1
- 238000005246 galvanizing Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 230000002708 enhancing effect Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction 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
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention relates to a production method of a continuous hot-dip galvanized product, which comprises the following steps: and determining the parameter information of the zinc liquid and the steel plate before galvanization. Immersing a first batch of steel plates with the thickness range of 0.25-2.50 mm into a zinc pot for galvanizing treatment to generate large spangle steel plates; the weight of the first batch of steel plates is determined by a first proportioning formula; immersing a second batch of steel plates with the thickness range of 0.25-2.50 mm into a zinc pot for galvanizing treatment to generate small spangle steel plates; the weight of the second batch of steel plates is determined by a second proportioning formula; immersing a third batch of steel plates with the thickness range of 0.25-0.80 mm into a zinc pot for galvanizing treatment to generate fine spangle steel plates; the weight of the third batch of steel plates is determined by a third proportioning formula; immersing a fourth batch of steel plates with the thickness range of 0.25-2.50 mm into a zinc pot for galvanizing treatment to generate a zinc-free flower steel plate; the weight of the fourth batch of steel plates is determined by a fourth proportioning formula. The production method can enhance the planning of the steel plate galvanizing work, effectively avoid the produced products with unqualified spangles on the surface of the steel plate and reduce the economic loss.
Description
Technical field
The present invention relates to steelmaking technical field, more particularly to a kind of production method of continuously dip coat zinc product.
Background technology
In continuous hot galvanizing production process, adding appropriate antimony to zinc liquid can make zinc-plated plate surface form zinc flower, therefore,
The continuous hot galvanizing producing line of the big zinc flower of one production and minimum spangle galvanizing product can be according to market demand situation, by reducing antimony
The method migration of constituent content spends the producing line of galvanizing production for production without zinc.
The method that existing big zinc flower prod is converted to no zinc flower prod predominantly washes in a pan zinc drop antimony method and continuous production drop antimony method.
Wherein, when continuous production drop antimony method refers to that big zinc spends galvanizing production to without zinc flower galvanizing production conversion, centralized production Thin Specs, thickness
The galvanizing production of zinc layers, hanging zinc using belt steel surface reduces the antimony content in zinc liquid, and the method can be in the short period of time
The antimony content of zinc liquid is reduced, but larger drawback be present.
Production method of the prior art lacks planned, easily causes stock quantity and producing line yield and mismatches；Output
Galvanizing production surface zinc flower size it is uneven, it is unqualified to easily cause zinc flower prod.
The content of the invention
A kind of production method for continuously dip coat zinc product that the application provides, is solved or part solves in the prior art
Production method lack planned, the galvanizing production surface zinc flower size of output is uneven, and it is underproof to easily cause zinc flower prod
Technical problem, realize enhancing galvanized steel work it is planned, effectively avoid the big zinc flower prod of continuous hot galvanizing producing line to
The zinc flower prod transition period produces zinc flower off-dimension product, reduces the technique effect of economic loss.
This application provides a kind of production method of continuously dip coat zinc product, for producing big zinc checker plate, small zinc flower steel
Plate, tiny zinc checker plate and without zinc checker plate；The production method comprises the following steps：
Determine the parameter information of zinc-plated preceding zinc liquid and steel plate；
First steel plate that thickness range is 0.25~2.50mm is immersed in zinc pot and carries out zinc-plated processing, is generated described big
Zinc checker plate；The weight of first steel plate is determined by the first ratio formula；
The second batch steel plate that thickness range is 0.25~2.50mm is immersed in the zinc pot and carries out zinc-plated processing, generates institute
State small zinc flower steel plate；The weight of the second batch steel plate is determined by the second ratio formula；
The 3rd batch of steel plate that thickness range is 0.25~0.80mm is immersed in the zinc pot and carries out zinc-plated processing, generates institute
State tiny zinc checker plate；The weight of the 3rd batch of steel plate is determined by the 3rd ratio formula；
The 4th batch of steel plate that thickness range is 0.25~2.50mm is immersed in the zinc pot and carries out zinc-plated processing, generates institute
State no zinc checker plate；The weight of the 4th batch of steel plate is determined by the 4th ratio formula；
Wherein, after terminating per a collection of galvanized steel processing, zinc liquid is supplemented into the zinc pot.
Preferably, the parameter information for determining zinc-plated preceding zinc liquid and steel plate, including：
The gross weight of zinc liquid in the zinc pot is determined, is designated as m, unit is ton；
The antimony content of the zinc liquid is determined, calculates by percentage to the quality, is designated as x%；
The weight of the zinc liquid of first steel plate consumption per ton is determined, is designated as n1, unit is ton；
The weight of the zinc liquid of the second batch steel plate consumption per ton is determined, is designated as n2, unit is ton；
The weight of the zinc liquid of the 3rd batch of steel plate consumption per ton is determined, is designated as n3, unit is ton；
The weight of the zinc liquid of the 4th batch of steel plate consumption per ton is determined, is designated as n4, unit is ton.
Preferably, after the completion of first galvanized steel processing, the antimony content of the zinc liquid is 0.02%；
After the completion of the second batch galvanized steel processing, the antimony content of the zinc liquid is 0.01%；
After the completion of the 3rd batch of galvanized steel processing, the antimony content of the zinc liquid is 0.005%；
After the completion of the 4th batch of galvanized steel processing, the antimony content of the zinc liquid is y%, and the y is less than 0.005.
Preferably, the weight of first steel plate is designated as P1, unit is ton；
First ratio formula is：
P1=log(1-n1/m)(0.02/x)；
The weight of the second batch steel plate is designated as P2, and unit is ton；
Second ratio formula is：
P2=log(1-n2/m)(0.01/0.02)；
The weight of the 3rd batch of steel plate is designated as P3, and unit is ton；
3rd ratio formula is：
P3=log(1-n3/m)(0.005/0.01)；
The weight of the 4th batch of steel plate is designated as P4, and unit is ton；
4th ratio formula is：
P4=log(1-n4/m)(y/0.005)。
Preferably, the zinc-plated processing order of first steel plate is carried out with steel plate thickness by thin to thickness；
The zinc-plated processing order of the second batch steel plate is carried out with steel plate thickness by thin to thickness；
The zinc-plated processing order of the 3rd batch of steel plate is carried out with steel plate thickness by thin to thickness；The tiny zinc checker plate leads to
Cross polishing machine and carry out finishing, the working roll roughness of the polishing machine is more than or equal to 3.0.
Preferably, the zinc flower diameter on the big zinc checker plate surface is more than or equal to 5mm；
The zinc flower diameter of the small zinc flower surface of steel plate is more than or equal to 2mm and is less than 5mm；
The zinc flower diameter on the tiny zinc checker plate surface is more than or equal to 1mm and is less than 2mm；
The zinc flower diameter on the no zinc checker plate surface is less than 1mm.
Preferably, after terminating per a collection of galvanized steel processing, the zinc-aluminium conjunction without antimony is added into the zinc pot
Ingot, make zinc liquid gross weight in the zinc pot and initial phase same.
One or more technical schemes provided herein, have at least the following technical effects or advantages：
Zinc-plated place is carried out as a result of the thickness that each batch steel plate is rationally designed according to the parameter information of zinc liquid and steel plate
Reason, the weight of each batch steel plate is determined by ratio formula, can smoothly realize continuous hot galvanizing producing line by big zinc checker plate
Produce to small zinc flower steel plate, tiny zinc checker plate up to the conversion without the production of zinc checker plate, and ensure each batch surface of steel plate plating
Zinc flower size uniform in zinc layers.So, efficiently solve production method of the prior art lack it is planned, output it is zinc-plated
Product surface zinc flower size is uneven, easily causes the underproof technical problem of zinc flower prod, realizes enhancing galvanized steel work
It is planned, effectively avoid the big zinc flower prod of continuous hot galvanizing producing line to the zinc flower prod transition period produce zinc spend it is off size
Lattice product, reduce the technique effect of economic loss.
Brief description of the drawings
Fig. 1 is the flow chart of the production method of continuously dip coat zinc product provided in an embodiment of the present invention.
Embodiment
A kind of production method for continuously dip coat zinc product that the embodiment of the present application provides, solve or partly solve existing
Production method in technology lacks planned, and the galvanizing production surface zinc flower size of output is uneven, easily causes zinc flower prod not
Qualified technical problem, zinc-plated processing is carried out by the thickness for rationally designing each batch steel plate, determined by ratio formula each
The weight of batch steel plate, the planned of enhancing galvanized steel work is realized, effectively avoided in the big zinc flower of continuous hot galvanizing producing line
Product produces zinc to the zinc flower prod transition period and spends off-dimension product, reduces the technique effect of economic loss.
The embodiment of the present application provides a kind of production method of continuously dip coat zinc product, for producing big zinc checker plate, small
Zinc checker plate, tiny zinc checker plate and without zinc checker plate；The production method comprises the following steps：
S1：Determine the parameter information of zinc-plated preceding zinc liquid and steel plate.
S2：First steel plate that thickness range is 0.25~2.50mm is immersed in zinc pot and carries out zinc-plated processing, generation is big
Zinc checker plate；The weight of first steel plate is determined by the first ratio formula.
S3：The second batch steel plate that thickness range is 0.25~2.50mm is immersed in zinc pot and carries out zinc-plated processing, generation is small
Zinc checker plate；The weight of second batch steel plate is determined by the second ratio formula.
S4：The 3rd batch of steel plate that thickness range is 0.25~0.80mm is immersed in zinc pot and carries out zinc-plated processing, generation is thin
Small zinc flower steel plate；The weight of 3rd batch of steel plate is determined by the 3rd ratio formula.
S5：The 4th batch of steel plate that thickness range is 0.25~2.50mm is immersed in zinc pot and carries out zinc-plated processing, generates nothing
Zinc checker plate；The weight of 4th batch of steel plate is determined by the 4th ratio formula.
Wherein, after terminating per a collection of galvanized steel processing, zinc liquid is supplemented into zinc pot；As a kind of preferred embodiment,
After terminating per a collection of galvanized steel processing, the ZnAl alloy ingot without antimony is added into zinc pot, makes the zinc liquid gross weight in zinc pot
It is same with initial phase.
Further, step S1 includes：S101：The gross weight of zinc liquid in zinc pot is determined, is designated as m, unit is ton；S102：
The antimony content of zinc liquid is determined, is calculated by percentage to the quality, is designated as x%；S103：Determine the zinc liquid of first steel plate consumption per ton
Weight, is designated as n1, and unit is ton；S104：The weight of the zinc liquid of second batch steel plate consumption per ton is determined, is designated as n2, unit is ton；
S105：The weight of the zinc liquid of the 3rd batch of steel plate consumption per ton is determined, is designated as n3, unit is ton；S106：Determine the 4th batch of steel per ton
The weight of the zinc liquid of plate consumption, is designated as n4, unit is ton.
Further, after the completion of the processing of first galvanized steel, the antimony content of zinc liquid is 0.02%；Second batch galvanized steel
After the completion of processing, the antimony content of zinc liquid is 0.01%；After the completion of 3rd batch of galvanized steel processing, the antimony content of zinc liquid is
0.005%；After the completion of 4th batch of galvanized steel processing, the antimony content of zinc liquid is y%, and the y is less than 0.005.
Further, the weight of first steel plate is designated as P1, and unit is ton；
First ratio formula is：
P1=log(1-n1/m)(0.02/X)；
The weight of second batch steel plate is designated as P2, and unit is ton；
Second ratio formula is：
P2=log(1-n2/m)(0.01/0.02)；
The weight of 3rd batch of steel plate is designated as P3, and unit is ton；
3rd ratio formula is：
P3=log(1-n3/m)(0.005/0.01)；
The weight of 4th batch of steel plate is designated as P4, and unit is ton；
4th ratio formula is：
P4=log(1-n4/m)(y/0.005)。
Further, the zinc-plated processing order of first steel plate is carried out with steel plate thickness by thin to thickness；Second batch steel plate
Zinc-plated processing order is carried out with steel plate thickness by thin to thickness；The zinc-plated processing order of 3rd batch of steel plate is with steel plate thickness by thin to thickness
Carry out；Tiny zinc checker plate carries out finishing by polishing machine, and the working roll roughness of polishing machine is more than or equal to 3.0.
Further, the zinc flower diameter on big zinc checker plate surface is more than or equal to 5mm；The zinc flower diameter of small zinc flower surface of steel plate
More than or equal to 2mm and it is less than 5mm；The zinc flower diameter on tiny zinc checker plate surface is more than or equal to 1mm and is less than 2mm；Steel is spent without zinc
The zinc flower diameter of plate surface is less than 1mm.
Wherein, the production method of the continuously dip coat zinc product is by Proper Match product type and production sequence, accurately
Calculating antimony content change and the order details needed for conversion work makes continuous hot galvanizing producing line zinc flower prod greatly be converted to nothing
The production process of zinc flower prod does not produce zinc ingot metal containing antimony, does not increase zinc pot thermal sensor load, conversion work meter without potential safety hazard
Drawing property is strong, and can avoid spending size not to zinc flower prod transition period generation zinc in the big zinc flower prod of continuous hot galvanizing producing line
Equal substandard product, reduce economic loss.
The production method of the continuously dip coat zinc product provided below by specific embodiment the application is described in detail：
S1：Determine it is zinc-plated before zinc liquid and steel plate parameter information, i.e. liquid zinc of zinc pot weight is 300 tons, wherein zinc liquid
Antimony content x=0.04；Averagely produce 1 ton of first steel plate, second batch steel plate, the 3rd batch of steel plate and the zinc of the 4th batch of steel plate consumption
Liquid weight is all identical, i.e. n1=n2=n3=n4=0.023 tons.
S2：First steel plate that thickness range is 0.25~2.50mm is immersed in zinc pot and carries out zinc-plated processing, generation is big
Zinc checker plate；The weight P1 of first steel plate determined by the first ratio formula, i.e.,
Unit is ton.
S3：The second batch steel plate that thickness range is 0.25~2.50mm is immersed in zinc pot and carries out zinc-plated processing, generation is small
Zinc checker plate；The weight P2 of second batch steel plate determined by the second ratio formula, i.e.,
Unit is ton.
S4：The 3rd batch of steel plate that thickness range is 0.25~0.80mm is immersed in zinc pot and carries out zinc-plated processing, generation is thin
Small zinc flower steel plate；The weight P3 of 3rd batch of steel plate determined by the 3rd ratio formula, i.e.,
Unit is ton.
S5：The 4th batch of steel plate that thickness range is 0.25~2.50mm is immersed in zinc pot and carries out zinc-plated processing, generates nothing
Zinc checker plate；And after the completion of the 4th batch of galvanized steel processing, the antimony content of zinc liquid is 0.0025%；The weight P4 of 4th batch of steel plate
Determined by the 4th ratio formula, i.e.,
Unit is ton.
Wherein, the zinc-plated processing order of first steel plate is carried out with steel plate thickness by thin to thickness；Second batch steel plate it is zinc-plated
Processing sequence is carried out with steel plate thickness by thin to thickness；The zinc-plated processing order of 3rd batch of steel plate is entered with steel plate thickness by thin to thickness
OK；Tiny zinc checker plate carries out finishing by polishing machine, and the working roll roughness of polishing machine is more than or equal to 3.0；4th batch of steel plate
Zinc-plated processing order be random order.
From above-described embodiment, the weight of each batch steel plate can be accurately determined by using the production method of the application
Amount, ensure galvanized steel work with good planned, and can smoothly realize the big zinc checker plate of continuous hot galvanizing producing line to
Production conversion without zinc checker plate, no potential safety hazard do not produce zinc ingot metal containing antimony, do not increase zinc pot thermal sensor load, and can
To avoid reducing to zinc flower prod transition period generation zinc flower off-dimension product in the big zinc flower prod of continuous hot galvanizing producing line
Economic loss.
One or more technical schemes provided herein, have at least the following technical effects or advantages：
Zinc-plated place is carried out as a result of the thickness that each batch steel plate is rationally designed according to the parameter information of zinc liquid and steel plate
Reason, the weight of each batch steel plate is determined by ratio formula, can smoothly realize continuous hot galvanizing producing line by big zinc checker plate
Produce to small zinc flower steel plate, tiny zinc checker plate until the conversion without the production of zinc checker plate, without potential safety hazard in production process, no
Zinc ingot metal containing antimony is produced, does not increase the load of zinc pot thermal sensor, the yield of various zinc checker plates is planned strong, and ensures each batch
Zinc flower size uniform on surface of steel plate zinc coat.So, efficiently solve production method of the prior art lack it is planned,
The galvanizing production surface zinc flower size of output is uneven, easily causes the underproof technical problem of zinc flower prod, realizes enhancing steel
The zinc-plated work of plate it is planned, effectively avoid the big zinc flower prod of continuous hot galvanizing producing line to the zinc flower prod transition period produce zinc
Flower off-dimension product, reduce the technique effect of economic loss.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not limited to this hair
It is bright, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., it should be included in the present invention
Protection domain within.
Claims (4)
- A kind of 1. production method of continuously dip coat zinc product, for producing big zinc checker plate, small zinc flower steel plate, tiny zinc checker plate And without zinc checker plate；Characterized in that, the production method comprises the following steps：The parameter information of zinc-plated preceding zinc liquid and steel plate is determined, including：The gross weight of zinc liquid in zinc pot is determined, is designated as m, unit is Ton；The antimony content of the zinc liquid is determined, calculates by percentage to the quality, is designated as x%；Determine the zinc liquid of first steel plate consumption per ton Weight, be designated as n1, unit is ton；The weight of the zinc liquid of second batch steel plate consumption per ton is determined, is designated as n2, unit is ton；Really The weight of the zinc liquid of fixed 3rd batch of steel plate consumption per ton, is designated as n3, unit is ton；Determine the zinc liquid of the 4th batch of steel plate consumption per ton Weight, be designated as n4, unit is ton；After the completion of first galvanized steel processing, the antimony content of the zinc liquid is 0.02%； After the completion of the second batch galvanized steel processing, the antimony content of the zinc liquid is 0.01%；The 3rd batch of galvanized steel processing After the completion of, the antimony content of the zinc liquid is 0.005%；After the completion of the 4th batch of galvanized steel processing, the antimony of the zinc liquid contains Measure and be less than 0.005 for y%, the y；First steel plate that thickness range is 0.25~2.50mm is immersed in zinc pot and carries out zinc-plated processing, the generation big zinc flower Steel plate；The weight of first steel plate is determined by the first ratio formula；The weight of first steel plate is designated as P1, unit For ton；First ratio formula is：P1=log(1-n1/m)(0.02/x)；The second batch steel plate that thickness range is 0.25~2.50mm is immersed in the zinc pot and carries out zinc-plated processing, generation is described small Zinc checker plate；The weight of the second batch steel plate is determined by the second ratio formula；The weight of the second batch steel plate is designated as P2, Unit is ton；Second ratio formula is：P2=log(1-n2/m)(0.01/0.02)；The 3rd batch of steel plate that thickness range is 0.25~0.80mm is immersed in the zinc pot and carries out zinc-plated processing, is generated described thin Small zinc flower steel plate；The weight of the 3rd batch of steel plate is determined by the 3rd ratio formula；The weight of the 3rd batch of steel plate is designated as P3, unit are ton；3rd ratio formula is：P3=log(1-n3/m)(0.005/0.01)；The 4th batch of steel plate that thickness range is 0.25~2.50mm is immersed in the zinc pot and carries out zinc-plated processing, generates the nothing Zinc checker plate；The weight of the 4th batch of steel plate is determined by the 4th ratio formula；The weight of the 4th batch of steel plate is designated as P4, Unit is ton；4th ratio formula is：P4=log(1-n4/m)(y/0.005)；Wherein, after terminating per a collection of galvanized steel processing, zinc liquid is supplemented into the zinc pot.
- 2. production method as claimed in claim 1, it is characterised in thatThe zinc-plated processing order of first steel plate is carried out with steel plate thickness by thin to thickness；The zinc-plated processing order of the second batch steel plate is carried out with steel plate thickness by thin to thickness；The zinc-plated processing order of the 3rd batch of steel plate is carried out with steel plate thickness by thin to thickness；The tiny zinc checker plate passes through light Complete machine carries out finishing, and the working roll roughness of the polishing machine is more than or equal to 3.0.
- 3. production method as claimed in claim 1, it is characterised in thatThe zinc flower diameter on the big zinc checker plate surface is more than or equal to 5mm；The zinc flower diameter of the small zinc flower surface of steel plate is more than or equal to 2mm and is less than 5mm；The zinc flower diameter on the tiny zinc checker plate surface is more than or equal to 1mm and is less than 2mm；The zinc flower diameter on the no zinc checker plate surface is less than 1mm.
- 4. production method as claimed in claim 1, it is characterised in thatAfter terminating per a collection of galvanized steel processing, the ZnAl alloy ingot without antimony is added into the zinc pot, makes the zinc Zinc liquid gross weight and initial phase in pot is same.
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|---|---|---|---|---|
| JPH08176774A (en) * | 1994-12-28 | 1996-07-09 | Kawasaki Steel Corp | Production of galvanized stel sheet and production dvice threfor |
| CN102330045B (en) * | 2011-09-07 | 2013-12-25 | 河北钢铁股份有限公司唐山分公司 | Hot dip galvanizing product surface spangle state control method |
| WO2014084371A1 (en) * | 2012-11-30 | 2014-06-05 | 新日鐵住金株式会社 | Hot dip galvanized steel sheet |
| CN103160766A (en) * | 2013-03-23 | 2013-06-19 | 鞍钢股份有限公司 | Method for controlling spangle size |
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2015
- 2015-11-26 CN CN201510836495.6A patent/CN105316612B/en active Active
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