CN102400079B - Manufacturing method of high-temperature-resistant coated steel plate and high-temperature-resistant coated steel plate - Google Patents
Manufacturing method of high-temperature-resistant coated steel plate and high-temperature-resistant coated steel plate Download PDFInfo
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- CN102400079B CN102400079B CN201010276476.XA CN201010276476A CN102400079B CN 102400079 B CN102400079 B CN 102400079B CN 201010276476 A CN201010276476 A CN 201010276476A CN 102400079 B CN102400079 B CN 102400079B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 67
- 239000010959 steel Substances 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 52
- 239000011248 coating agent Substances 0.000 claims abstract description 51
- 239000002245 particle Substances 0.000 claims abstract description 45
- 239000002105 nanoparticle Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000007747 plating Methods 0.000 claims abstract description 17
- 238000007598 dipping method Methods 0.000 claims abstract description 7
- 230000005684 electric field Effects 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910000765 intermetallic Inorganic materials 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 4
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 abstract description 6
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 2
- 150000004706 metal oxides Chemical class 0.000 abstract description 2
- 229910000680 Aluminized steel Inorganic materials 0.000 abstract 1
- 238000003618 dip coating Methods 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 22
- 229910052725 zinc Inorganic materials 0.000 description 22
- 239000011701 zinc Substances 0.000 description 22
- 230000004048 modification Effects 0.000 description 20
- 238000012986 modification Methods 0.000 description 20
- 229910052782 aluminium Inorganic materials 0.000 description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 14
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 238000005246 galvanizing Methods 0.000 description 5
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910000943 NiAl Inorganic materials 0.000 description 3
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002103 nanocoating Substances 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910009043 WC-Co Inorganic materials 0.000 description 2
- 230000003064 anti-oxidating effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000005476 size effect Effects 0.000 description 2
- 229910000989 Alclad Inorganic materials 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 210000000438 stratum basale Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
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- Coating With Molten Metal (AREA)
Abstract
The invention discloses a method for manufacturing a high-temperature-resistant coated steel plate and the high-temperature-resistant coated steel plate, which are characterized in that: on a continuous hot dip coating production line, after strip steel is discharged from a molten plating solution and is blown by an air knife, nano hard particles are uniformly conveyed to the surface of the strip steel by a nano hard particle conveying device and are combined with a coating in a molten state, and a surface layer distributed with hard nano particles is formed on the surface of the coating after cooling. The nano hard particle conveying device is an electric field generating device and is arranged after the strip steel of the continuous hot dipping production line goes out of the air knife. The nano hard particles are one or more of ceramics, metal-based ceramics, intermetallic compounds and metal oxides. The steel plate produced by the manufacturing method improves the wear resistance, high temperature resistance and formability of the hot-dip aluminized steel plate.
Description
Technical field
The present invention relates to continuous belt steel hot dip process technical field, the hot-dip coated steel sheet manufacture method that particularly a kind of resistance to elevated temperatures is good and the good hot-dip coated steel sheet of resistance to elevated temperatures thereof.
Background technology
Approximately there are 10% steel in the whole world because corrosion is lost, and zinc-plated is the effective measure that reduce Corrosion Of Steel loss.But the deficiency of traditional pure zinc plating steel plate solidity to corrosion, wear resistance, resistance to elevated temperatures, for improving its performance such as corrosion-resistant, high temperature resistant, has developed the novel coatings such as performance is better aluminized, aluminum-zinc alloy, all commercializations.
AlSi hot dip process steel plate is a kind of taking hot rolling or cold-rolled steel sheet as base material, adopt continuous hot-dipping technique, generate continuous, the fine and close AlSi alloy layer of one deck at surface of steel plate, there is the features such as high temperature resistant, corrosion-resistant, and there is good appearance, be particularly suitable for using in hot environment.AlSi Coated Steel has good high thermal resistance, and in temperature, during lower than 450 DEG C, AlSi Coated Steel can keep bright outward appearance, until more than 500 DEG C just start oxidation and variable color.The good thermotolerance of AlSi Coated Steel is relevant with the pellumina of coating surface, and the pellumina that its coating forms is combined very firm with stratum basale, and very fine and close, and thickness approximately has tens of to 100 nanometers left and right.Once this film is scratched, can autoxidation heal, the thermotolerance of AlSi Coated Steel is far above different zinc-base Coated Steels.But AlSi coating at high temperature there will be ruckbildung, strength degradation, hardness declines.
Along with the raising of intensity, steel formability performance reduces, for head it off, develop and be hot pressed into shaped steel, because hot compacting steel steel plate is exposed in air under high temperature in the process of heating and punching press, so will inevitably cause surface oxidation, generate the composite oxides of Fe2O3 and Fe3O4.Therefore,, in hot press-formed process, how surface of steel plate being carried out to anti-oxidation processing is a guardian technique.Aluminium and the mutual diffusion of iron generation phase, and thickened its infusibility and fine and close ferroalloy parts.At present, hot compacting steel immersion plating AlSi alloy, forms Al-8%Si coating, possesses high temperature resistance and corrosion resistant feature, be application at present the most extensively, the most effective anti-oxidation technique.But there is embrittlement, obscission in coating, plasticity seriously reduces in the process of heating and punching press.
Alclad sheet is difficult to overcome the contradiction that coating hardness and toughness are difficult to take into account, the hardness that improves coating often will be to sacrifice its toughness as cost, causes fragility to increase, and result causes the matching of coating and matrix and associativity to decline, coating is easy to crack, and hard phase easily comes off.
The birth of nanotechnology is greatly improved the hardness of traditional material and toughness simultaneously, make to there is high rigidity, be distributed in to the nanometer hard particles even dispersion of the plurality of advantages such as high chemical stability energy metal base surface by advanced material treatment technology on this basis, hardness and the wear and corrosion behavior that so just can further improve material can ensure that again the toughness of material does not decline simultaneously, thereby increase substantially the wear and corrosion behavior of traditional material.Nano coating improves the abrasion resistance properties of coating is improved due to its hardness and toughness time, the cut drag of nano coating improves simultaneously, frictional coefficient reduces, these are all conducive to nano coating and improve wear resistance, the introducing of nanometer hard particles, more forming core core can be provided, and refinement coating microtexture, improves coating processability.The existence of nano particle in coating, has improved intensity and the hardness of coating under high temperature.
Mainly there are two problems in traditional nanostructure coating prepared by thermal spraying method: the 1. transportation problem of nano particle.Can be generally 45～110 μ m for powder size scope used for hot spraying, nano-powder can not be directly used in thermospray, otherwise can produce scaling loss and the problem such as fly upward, and due to the surface and interface effect of nano material itself, nano particle is very easily reunited, poor fluidity, can cause certain obstruction to transport pipe.In order to make full use of nano particle premium properties and to meet the requirement of existing Technology, nano material must be prepared into can direct heat spraying micron order nanostructured feedstock.2. the sintering of the nano particle problem of growing up.Nanoparticle specific surface area is large, and surfactivity is high, causes melting point depression, and in spraying process, easily sintering is grown up and changes proterties, finally has influence on the maintenance of nanocrystalline structure in coating.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, technical problem to be solved by this invention is to provide a kind of change under the prerequisite of traditional hot-dip coated tinuous production processing set-up, improve the surface hardness of existing Coated Steel, refinement coating microtexture, improves wear-resisting, resistance to elevated temperatures, the processability of Coated Steel.
Main contents of the present invention are as follows:
A kind of manufacture method of high temperature resistant Coated Steel, it is characterized in that: on continuous hot-dipping production line, after band steel goes out melting plating solution process air knife purging, nanometer hard particles e Foerderanlage is evenly transported to belt steel surface by nano-scale hard particles and combines with the coating in molten state, the upper layer that is distributed with hard nanometer particle after cooling at coating surface formation one deck, becomes nanometer hard particles modification Coated Steel.
Nanometer hard particles e Foerderanlage is arranged on continuous hot-dipping produce tape steel and go out air knife after, before coating does not solidify; This device is a set of electric field generation device, when production, nanometer hard-particle powder is evenly sent into electric field, and nanometer hard particles moves and combination to melting coating under the effect of electric field.
Nanometer hard particles can be pottery, ceramic on metal, can be also the intermetallic compound that fusing point, hardness are relatively high, one or more of metal oxide.
Temperature with steel after air knife purges should be higher than more than coated metal fusing point 10 degree, preferably more than 30 degree.
It is 10nm～100nm that nano particle is selected particle diameter.
Coating can be to aluminize, and aluminum-zinc alloy can be also alloy plating.
Wear-resisting scratch resistance nano-deposit steel plate, is characterized in that, in steel plate coating, be distributed with the hard particles of nano-scale, particle and coating have good combination; The hardness of nano particle is far above coating itself, and the fusing point of nano particle is higher than the fusing point of coating material.
Coating can be to aluminize, and aluminum-zinc alloy can be also alloy plating.
Selecting the hard particles of nano-scale is to utilize its nanometer size effect, and coating is carried out to nano modification, and size increases, and nanometer size effect disappears.While only having hardness when nano particle far above coating itself, just can play and strengthen effect wear-resisting, adhesion strength.Only have the fusing point of nano particle higher than the fusing point of coating material, can keep stable existence in the time that the coating of molten state is combined.
Do not change the processing set-up of conventional continuous hot-dipping production line, only need on production line, increase a set of electric field generation device, greatly improved suitability of the present invention, existing hot dip production line that can widespread use.
The intensity of electric field is adjusted according to the size of the travelling speed with steel, thickness of coating, nano particle, and object is to ensure that the particle in coating has certain distribution density, generally selects 10KV～100KV.
The temperature that steel plate goes out after air knife should be higher than more than coated metal fusing point 10 degree, preferably more than 30 degree.This is because must ensure certain superheating temperature, can ensure the mobility of plating solution, can infiltrate fully with nano particle, combination.
In the situation that not changing existing continuous hot dip aluminum/aluminium zinc production-line technique and arranging, can utilize nanometer hard particles to the hot-dip coated nanometer surface modification that carries out, improve wear-resisting, resistance to elevated temperatures and the processability of aludip.
Embodiment
Embodiment 1:
A kind of nano WC-Co ceramic particle modification aludip
Nano particle is selected the nano WC-Co ceramic particle that particle diameter is 10nm～50nm, after steel plate goes out zinc pot, powder is transported to galvanized sheet surface by voltage with 80KV～100KV, be combined with the coating aluminium liquid of molten state, air-cooled afterwards, form nanometer WC ceramic grain surface modification hot dip galvanizing plate, zinc pot temperature is 730 DEG C of left and right.
The surface modification surface of steel plate hardness obtaining is traditional aludip more than a times, and refinement coating grain-size is to micron order.
Embodiment 2:
A kind of nanometer NiAl intermetallic compound particle modification aludip
Nano particle is selected the nanometer NiAl intermetallic compound particle that particle diameter is 40nm～100nm, after steel plate goes out zinc pot, powder is transported to galvanized sheet surface by voltage with 50KV～90KV, be combined with the coating aluminium liquid of molten state, air-cooled afterwards, form nanometer NiAl intermetallic compound particle surface modification hot dipped aluminum coated plate, zinc pot temperature is 750 DEG C of left and right.
The surface modification surface of steel plate hardness obtaining is traditional aludip more than a times, and refinement coating grain-size is to micron order.
Embodiment 3:
A kind of nanometer SiO
2oxide particle modification hot dip aluminum plating zinc steel plate
Nano particle is selected the nanometer SiO that particle diameter is 30nm～80nm
2oxide particle, after steel plate goes out zinc pot, is transported to galvanized sheet surface with the voltage of 80KV～100KV by powder, is combined with the coating aluminium zinc liquid of molten state, air-cooled afterwards, forms nanometer SiO
2oxide particle surface modification hot dip galvanizing plate, solution composition is 95%Zn5%Al, zinc pot temperature is 650 DEG C of left and right.
The surface modification surface of steel plate hardness obtaining is traditional hot dip aluminum plating zinc steel plate more than a times, and refinement coating grain-size is to micron order.
Embodiment 4:
A kind of nanometer Al
2o
3oxide particle modification hot dip aluminum plating zinc steel plate
Nano particle is selected the nanometer Al that particle diameter is 10nm～100nm
2o
3oxide particle, after steel plate goes out zinc pot, is transported to galvanized sheet surface with the voltage of 80KV～100KV by powder, is combined with the coating aluminium zinc liquid of molten state, air-cooled afterwards, forms nanometer Al
2o
3oxide particle surface modification hot dip galvanizing plate, solution composition is 95%Zn5%Al, zinc pot temperature is 670 DEG C of left and right.
The surface modification surface of steel plate hardness obtaining is traditional hot dip aluminum plating zinc steel plate more than a times, and refinement coating grain-size is to micron order.
Embodiment 5:
A kind of nano SiC granule modification hot dip aluminum plating zinc steel plate
Nano particle is selected the nano SiC granule that particle diameter is 30nm～100nm, after steel plate goes out zinc pot, powder is transported to galvanized sheet surface by voltage with 80KV～100KV, be combined with the coating aluminium zinc liquid of molten state, air-cooled afterwards, form nano SiC granule surface modification hot dip galvanizing plate, solution composition is 95%Zn5%Al, and zinc pot temperature is 670 DEG C of left and right.
The surface modification surface of steel plate hardness obtaining is traditional hot dip aluminum plating zinc steel plate more than a times, and refinement coating grain-size is to micron order.
Embodiment 6:
A kind of nano SiC+Al
2o
3granule modified hot dip aluminum plating zinc steel plate
Nano particle is selected nano SiC+Al that particle diameter is 30nm～100nm
2o
3particle, after steel plate goes out zinc pot, is transported to galvanized sheet surface with the voltage of 80KV～100KV by powder, is combined with the coating aluminium zinc liquid of molten state, air-cooled afterwards, forms nano SiC+Al
2o
3particle surface modification hot dip galvanizing plate, solution composition is 95%Zn5%Al, zinc pot temperature is 670 DEG C of left and right.
The surface modification surface of steel plate hardness obtaining is traditional hot dip aluminum plating zinc steel plate more than a times, and refinement coating grain-size is to micron order.
Claims (2)
1. the manufacture method of a high temperature resistant Coated Steel, it is characterized in that: on continuous hot-dipping production line, after band steel goes out melting plating solution process air knife purging, nanometer hard particles e Foerderanlage is evenly transported to belt steel surface by nanometer hard particles and combines with the coating in molten state, forms one deck after cooling to be distributed with the upper layer of hard nanometer particle at coating surface; Described nanometer hard particles e Foerderanlage is electric field generation device, is arranged on continuous hot-dipping production tape steel and goes out after air knife; Described nanometer hard particles is one or both of metal, intermetallic compound; Described nano particle diameter is 10～100nm; Temperature with steel after air knife purges should be higher than more than coated metal fusing point 10 degree; Described coating be aluminize, aluminum-zinc alloy or alloy plating.
2. the high temperature resistant Coated Steel that manufacture method is produced according to claim 1, is characterized in that: coating surface is the upper layer that one deck is distributed with hard nanometer particle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010276476.XA CN102400079B (en) | 2010-09-07 | 2010-09-07 | Manufacturing method of high-temperature-resistant coated steel plate and high-temperature-resistant coated steel plate |
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| CN201010276476.XA CN102400079B (en) | 2010-09-07 | 2010-09-07 | Manufacturing method of high-temperature-resistant coated steel plate and high-temperature-resistant coated steel plate |
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| CN102400079B true CN102400079B (en) | 2014-09-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350818A (en) * | 2015-07-15 | 2017-01-25 | Posco公司 | Surface-treated steel plate with micro-grooves formed thereon and having improved workability and method for producing same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104264029B (en) * | 2014-10-13 | 2017-01-25 | 沈阳工业大学 | Nano composite abrasion-resistant alloy for abrasion-resistant steel and preparation technology for nano composite abrasion-resistant alloy |
| CN112267086A (en) * | 2020-09-30 | 2021-01-26 | 成都航空职业技术学院 | Method for preparing titanium-aluminum alloy high-strength coating on surface of titanium alloy under assistance of electromagnetic field |
| CN112410706B (en) * | 2020-11-20 | 2023-02-14 | 浙江华普环保材料有限公司 | High-corrosion-resistance aluminum-zinc-magnesium alloy coating with uniform crystal patterns and forming process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622869A (en) * | 2002-03-04 | 2005-06-01 | 杰富意钢铁株式会社 | Surface treatment facility of metal plate and method for producing metal plate |
| CN101688285A (en) * | 2007-04-06 | 2010-03-31 | 山阳特殊制钢株式会社 | Material for covering surface of hot dip galvanizing bath member, process for producing the material, and hot dip galvanizing bath member |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54139839A (en) * | 1978-04-24 | 1979-10-30 | Nippon Parkerizing Co Ltd | Pulverizing method for spangles of galvanized steel sheet |
| JPS6049713B2 (en) * | 1978-06-30 | 1985-11-05 | 株式会社日立製作所 | Single-sided melt plating method for steel plate |
| JPH04276058A (en) * | 1991-03-01 | 1992-10-01 | Sumitomo Metal Ind Ltd | Manufacture of dispersion plated steel sheet and torch to be used |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622869A (en) * | 2002-03-04 | 2005-06-01 | 杰富意钢铁株式会社 | Surface treatment facility of metal plate and method for producing metal plate |
| CN101688285A (en) * | 2007-04-06 | 2010-03-31 | 山阳特殊制钢株式会社 | Material for covering surface of hot dip galvanizing bath member, process for producing the material, and hot dip galvanizing bath member |
Non-Patent Citations (2)
| Title |
|---|
| JP昭55-8408A 1980.01.22 |
| JP特开平4-276058A 1992.10.01 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350818A (en) * | 2015-07-15 | 2017-01-25 | Posco公司 | Surface-treated steel plate with micro-grooves formed thereon and having improved workability and method for producing same |
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| CN102400079A (en) | 2012-04-04 |
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