CN115109991A - High-adhesion aluminum-zinc-plated steel plate for building foaming and manufacturing method thereof - Google Patents
High-adhesion aluminum-zinc-plated steel plate for building foaming and manufacturing method thereof Download PDFInfo
- Publication number
- CN115109991A CN115109991A CN202110299306.1A CN202110299306A CN115109991A CN 115109991 A CN115109991 A CN 115109991A CN 202110299306 A CN202110299306 A CN 202110299306A CN 115109991 A CN115109991 A CN 115109991A
- Authority
- CN
- China
- Prior art keywords
- zinc
- steel plate
- less
- hot
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C23C2/04—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
- C23C2/26—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/004—Dispersions; Precipitations
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention discloses a high-adhesion aluminum-zinc plated steel plate for building foaming and a manufacturing method thereof, and mainly solves the problem of hot aluminum plating in the prior artThe zinc steel plate has poor bonding performance and can not meet the technical problem of foaming bonding application of buildings. The invention provides a high-adhesion aluminum-zinc plated steel plate for building foaming, which comprises the following chemical components in percentage by weight: c: 0.02-0.25%, Si is less than or equal to 0.06%, Mn: 0.12-1.12%, P is less than or equal to 0.025%, S is less than or equal to 0.012%, Alt: 0.015-0.065%, N is less than or equal to 0.008%, and the balance is Fe and inevitable impurity elements. Yield strength R of hot-dip aluminum-zinc coated steel plate P0.2 190MPa to 450MPa, tensile strength R m 270 to 530MPa, elongation after break A 80mm Not less than 16%, bonding strength not less than 0.14MPa, white rust area not more than 3% in 240h salt spray experiment, and ultraviolet aging color difference of 500h<2, the dynamic friction coefficient is less than or equal to 0.11. The hot-dip aluminum-zinc plated steel plate meets the requirement of building foaming bonding, and has the advantages of low cost, energy conservation and environmental protection.
Description
Technical Field
The invention relates to a cold-rolled hot-dipped aluminum-zinc steel plate, in particular to a high-adhesion aluminum-zinc plated steel plate for building foaming and a manufacturing method thereof, belonging to the technical field of iron-based alloy.
Background
According to the adjustment and upgrade program of the steel industry, the proportion of steel for the steel structure in the steel for the building is increased from 10% to more than 25%, and the steel amount for the steel structure is increased from 5000 ten thousand tons to more than 1 hundred million tons. With the increasing market capacity of steel sheets, market competition is becoming more and more intense, and steel sheets with differentiation are becoming more and more popular in the market.
The aluminum-zinc-plated steel plate with excellent weather resistance, corrosion resistance and aesthetic property is widely applied in the field of buildings. The existing building outdoor enclosure system mainly comprises two major varieties of aluminum-zinc plated color coated plates and light plates (commonly known as chrome or chrome-free fingerprint-resistant products), wherein the color plates are more, but the light plates taking hot-dip aluminum-zinc as base materials also have the market share of nearly 50 million tons every year. At present, the application occasion of domestic construction users to the aluminum-zinc plated light panel is a roof single-layer skin without foaming and gluing. The product design mainly considers the processability during rolling processing and the bearing property, corrosion resistance and weather resistance in the service process. The workability mainly means that the steel plate is easy to form in a rolling process and does not crack after being processed; the bearing performance refers to the capability of resisting external force and not deforming in the service process of the steel plate; corrosion resistance such as cut corrosion resistance, resistance to under-film corrosion expansion, resistance to perforation corrosion and the like; weatherability refers to photo/thermal degradation aging of the coating and blackening control of the substrate surface. At present, the known commercial aluminum-zinc plated light panels only consider the comprehensive performance when being used as roof tile-shaped panels, and do not consider the combination condition of bonding with sandwich materials such as foaming polyurethane, rock wool and the like when being used for wall surfaces and indoor isolation sandwich panels. The application of the aluminum-zinc plated light panel is limited to a great extent due to poor adhesion when used for foam adhesion. The high-bonding aluminum-zinc plated steel plate has high bonding strength while meeting the requirements of processability, bearing property, corrosion resistance and weather resistance, is firmly bonded with core materials such as polyurethane, rock wool and the like, and has excellent comprehensive performance.
After the initial search, the related schemes in the prior art are as follows: chinese patent application publication No. CN105062239A discloses a preparation method of a high corrosion resistance coating liquid and a hot-dip aluminum-zinc fingerprint resistant plate, which mainly relates to the performances of corrosion resistance, fingerprint resistance, heat resistance, water resistance, adsorptivity and the like of a steel plate, and is a chromate passivation coating which is poor in environmental protection and does not meet the requirement of cohesiveness. Chinese patent with application publication number CN111304641A discloses a hot-dip aluminum-zinc plate chromium-free passivation solution and a preparation method of a hot-dip aluminum-zinc fingerprint-resistant plate, the product is mainly used in the field of electric appliance cabinets, the area of 240h white rust is more than 3%, and the requirements of corrosion resistance and caking property are not met. Therefore, a new solution to solve the above technical problems is urgently needed.
Disclosure of Invention
The invention provides a high-adhesion aluminum-zinc plated steel plate for building foaming, which aims at solving the problems in the prior art, mainly solves the technical problems that the hot-dip aluminum-zinc plated steel plate in the prior art has poor adhesion performance and cannot meet the foaming adhesion application of buildings, and meets the foaming adhesion requirement of buildings.
In order to achieve the purpose, the technical scheme of the invention is as follows, the high-adhesion aluminum-zinc-plated steel plate for building foaming comprises the following chemical components in percentage by weight: c: 0.02-0.25%, Si is less than or equal to 0.06%, Mn: 0.12-1.12%, P is less than or equal to 0.025%, S is less than or equal to 0.012%, Alt: 0.01 to 0.065 percent of the total weight of the steel plate, less than or equal to 0.008 percent of N and the balance of Fe and inevitable impurity elements, wherein the metallographic structure of the hot-dip aluminum-zinc steel plate is ferrite, pearlite and fine cementite,the yield strength R of the cold-rolled hot-dip aluminum-zinc coated steel plate with the ferrite grain size grade of I7.0-I9.5 and the thickness of 0.5-0.8mm P0.2 190MPa to 450MPa, tensile strength R m 270 to 530MPa, elongation after break A 80mm Not less than 16%, bonding strength not less than 0.14MPa, white rust area not more than 3% in 240h salt spray experiment, and ultraviolet aging color difference of 500h<2, the dynamic friction coefficient is less than or equal to 0.11.
The reason why the chemical composition of the high-adhesion aluminum-zinc-plated steel sheet for building foaming according to the present invention is limited to the above range is as follows:
carbon: c is an economic and effective solid solution strengthening element, the strength of the steel plate is increased along with the increase of the content of C, when the content of C exceeds 0.25%, the strength of the steel plate is obviously increased, common roll forming equipment cannot process the steel plate, the content of C is lower than 0.02%, the material strength is reduced, the steel plate does not have corresponding bearing capacity, the decarburization difficulty is increased, RH is passed through during steel making, and the cost is increased. The content of C in the invention is controlled to be 0.02-0.25%.
Silicon: si is an element for improving the strength of steel, the higher the strength is, the more unfavorable the rolling forming is, the high content of Si promotes the production of hot-rolled iron scale, the Si is easy to remain during subsequent acid washing, the binding force of a plating layer is influenced, and the product quality is deteriorated. In the invention, Si is less than or equal to 0.06 percent.
Manganese: mn is a main solid solution strengthening element, certain manganese content can ensure the strength of the steel plate, so that the steel plate has the due bearing capacity, a certain amount of Mn element can be combined with S to generate MnS, the hot brittleness of the surface is reduced, and the surface quality is improved. Excessive addition of Mn causes grain refinement and increases cost; the Mn content range of the invention is set to be 0.12-1.12%;
phosphorus: the P element is controlled as low as possible, and the P is set to be less than or equal to 0.025 percent;
sulfur: the S element is a harmful element in steel, and forms MnS inclusions easily, resulting in a decrease in ductility and toughness of steel and anisotropy of properties. The invention sets the S not more than 0.012%;
aluminum: in the aluminum killed steel, Al can remove O and form AlN at the same time, thereby avoiding aging problem caused by NHowever, when the Al content is less than 0.015%, it is difficult to exert the effect; when the Al content is more than 0.06%, Al in the steel can be caused 2 O 3 The impurities are increased, and the processing performance and the corrosion resistance of the material are influenced. The Al content of the invention is 0.015-0.65%.
Nitrogen: the interstitial solid solution strengthening element increases the material strength and the roll forming property along with the increase of the content of N in the steel, and the N is designed to be less than or equal to 0.008 percent.
A manufacturing method of a high-adhesion aluminum-zinc-plated steel plate for building foaming comprises the following steps:
continuously casting molten steel to obtain a continuous casting slab, wherein the molten steel comprises the following chemical components in percentage by weight: c: 0.02-0.25%, Si is less than or equal to 0.06%, Mn: 0.12-1.12%, P is less than or equal to 0.025%, S is less than or equal to 0.012%, Alt: 0.015-0.065%, N is less than or equal to 0.008%, and the balance is Fe and inevitable impurity elements;
heating the continuous casting plate blank to 1100-1260 ℃ by a heating furnace, and then carrying out hot rolling, wherein the hot rolling is a two-stage rolling process, the rough rolling is 5-pass continuous rolling, the finish rolling is 7-pass continuous rolling, the finish temperature of the finish rolling is 820-920 ℃, the laminar cooling adopts front-section cooling or full-length cooling, and the coiling temperature is 570-710 ℃ to obtain a hot rolled steel coil with the thickness of 2.0-3.2 mm;
the hot rolled steel coil is uncoiled again, then is subjected to acid pickling, cold rolling, annealing by a horizontal continuous annealing furnace, hot-dip aluminum-zinc coating, flattening, roller coating of chromium-free fingerprint-resistant coating and drying, and is coiled to obtain a finished cold-rolled hot-dip aluminum-zinc plated steel plate with the thickness of 0.5-0.8mm, wherein the acid pickling temperature of the steel strip is 55-80 ℃, the cold rolling reduction rate is 70-80%, the temperature of the cold-rolled hard strip in the heating section of the horizontal continuous annealing furnace is 600-680 ℃, the temperature of the soaking section is 710-770 ℃, the annealing time of the steel strip in the soaking section is 30-45s, the speed of the steel strip is 95-130m/min, the cold-rolled hard strip is put into a zinc pot for hot-dip aluminum-zinc plating, the temperature of the steel strip in the zinc pot is 570-620 ℃, and the weight of the single-side aluminum-zinc plated layer of the steel plate is 45-100g/m 2 (ii) a The leveling elongation rate is 0.6-1.1%; the chromium-free fingerprint-resistant coating is directly coated on the surface of the hot-dip aluminum-zinc coated steel plate by adopting a roller coating process, the roller coating process adopts a reverse coating mode, and the coating amount of the chromium-free fingerprint-resistant coating is 1.0-2.0g/cm 2 Liquid-carrying roller and strip steel speedThe degree ratio is 110-120%, the speed ratio of the coating roller to the strip steel is 125-145%, the rolling pressure of the liquid carrying roller and the coating roller is 0.3-0.5kN, the surface roughness Ra of the liquid carrying roller is 6.5-7.0 μm, and the surface roughness Ra of the coating roller is 1.5-2.0 μm; and drying the steel plate by using a drying furnace in the modes of electromagnetic induction heating and hot air drying, wherein the drying temperature of the steel plate is 105-135 ℃.
In the chromium-free fingerprint-resistant coating, a dry film mainly comprises the following components in parts by weight: aqueous organic resin: 70-85%, surface energy auxiliary agent: 0.5% -3%, silane coupling agent: 6-10%, resist: 5-10%, lubricating additive: 0.5 to 2 percent. Solid content of the coating: 16-22%, pH: 7.2-9.6, density: 1.0-1.1g/cm 3; viscosity: 10-95 mpas.
The aqueous organic resin is aqueous polyurethane resin and hydroxyl modified aqueous acrylic resin, and the proportion of the aqueous organic resin is 2-5: 1. the surface energy auxiliary agent is one or more of polymethylalkyl siloxane and polydimethylsiloxane. The silane coupling agent is one or more of aminopropyltriethoxysilane, gamma-mercaptopropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane and gamma-methacrylamidopropyltrimethoxysilane. The corrosion inhibitor is at least three of cerium nitrate, lanthanum nitrate, vanadium trioxide, vanadium pentoxide, sodium metavanadate, ammonium zirconium carbonate, potassium fluotitanate and ammonium fluotitanate. The lubricating additive is polyethylene wax with the particle size of 0.4-0.8 μm.
Compared with the existing fingerprint-resistant coating, the chromium-free fingerprint-resistant coating has the advantages that: 1) by introducing the surface energy auxiliary agent, the surface energy of the film layer is obviously increased, and the bonding capability of the film layer and foaming materials such as rock wool, hard foam polyurethane and the like under normal temperature and high temperature conditions is enhanced; 2) the corrosion resistance is further improved by adding various resists; 3) the small-particle-size polyethylene wax can be better dispersed in the film layer, so that the film layer is ensured to have uniform and excellent lubricating property, and meanwhile, the negative influence on the cohesiveness is not generated; 4) the coating is environment-friendly and does not contain toxic and harmful elements such as Cr and the like.
The production process adopted by the invention has the following reasons:
1. setting of heating temperature of continuous casting slab
The heating process of the continuous casting slab enables the slab to be completely austenitized, rolling and structure control are facilitated, and meanwhile, the situation that austenite grains are too large after heating is avoided, so that the heating temperature is set to be 1100-1260 ℃.
2. Setting of rough rolling finish temperature and finish rolling finish temperature
When hot rolling is carried out, the material needs to be recrystallized and rolled in a complete austenite region, and in order to avoid mixed crystals caused by the fact that the material enters a two-phase region for rolling, the finishing temperature is higher than Ar 3 The phase transformation point is set to 820-920 ℃ after the simulation experiment.
3. Setting of laminar cooling system and hot rolling coiling temperature
The rapid cooling is carried out in the phase change process, so that the solid solution of a large amount of carbon elements in a ferrite matrix can be obtained, conditions are created for the precipitation of cementite in the subsequent annealing, the low yield ratio characteristic is obtained, meanwhile, the reduction of the coiling temperature can control the growth of ferrite grains, the amount of brittle phase pearlite is reduced, the low yield ratio characteristic is favorably obtained, the comprehensive consideration is taken, the laminar cooling adopts one of front-section cooling or full-length cooling, and the coiling temperature is 570-710 ℃ for coiling to obtain a hot rolled steel coil.
4. Setting of pickling temperature and Cold Rolling reduction
According to the speed of the strip steel, the pickling temperature needs to be controlled to be matched with the speed of the strip steel, the iron scale on the surface of the strip steel is cleaned, and the subsequent coating is ensured to be tightly combined with a steel substrate, so the pickling temperature of the strip steel is controlled to be 55-80 ℃,
the cold rolling reduction rate is determined by the thickness of a hot rolled plate and the thickness of a finished product plate, the thickness of the finished product aluminum-plated zinc plate is 0.5-0.8mm, the thickness of the hot rolled plate is limited by hot rolling equipment and cannot be too thin, otherwise, the temperature of a rolled material is reduced too fast, and the final rolling temperature cannot be ensured; it cannot be too thick or the maximum load limit of the cold rolling mill is exceeded. Therefore, the cold rolling reduction is set to 70 to 80%.
5. Setting of annealing temperature and annealing time
The annealing temperature can completely recrystallize the material, the roll forming performance of the material can be deteriorated due to the excessively low annealing temperature, and the material is excessively soft and loses the bearing performance due to the excessively high annealing temperature, so that the material cannot be used as a structural member. Through comprehensive evaluation, the temperature of the annealing heating section is set to 600-680 ℃, the soaking temperature is set to 710-770 ℃, and meanwhile, the speed of the strip steel is controlled to be 95-130m/min, so that the annealing time of the strip steel in the soaking section is 30-45 s.
6. Setting of strip steel temperature in zinc pot
The melting point of the aluminum-zinc alloy is about 660 ℃, the temperature setting value of a general zinc pot is 30-50 ℃ higher than the melting point of zinc, the temperature of the strip steel entering the zinc pot is required to be controlled in a reasonable range, and the combination of a coating and a matrix is not facilitated when the temperature is too high or too low, so that the temperature of the strip steel entering the zinc pot is set to 570-620 ℃.
7. Setting of the Flat elongation
The main purpose of leveling is to eliminate the yield plateau of the material while adjusting the mechanical properties. The flat elongation of the invention is set to be 0.6-1.1%.
8. Roller coating process and setting of coating amount of self-lubricating coating
The roller coating process adopts a reverse coating mode; the coating amount of the chromium-free fingerprint-resistant coating is 1.0-2.0g/m 2 Because the coating amount of the fingerprint resistant coating is less than 1.0g/m 2 In the process, the corrosion resistance and the processing performance are obviously poor, and the service requirement cannot be met; when the coating amount of the self-lubricating coating is more than 2.0g/m 2 In the case of the above-mentioned method, local unevenness is likely to occur during roll coating, resulting in an increase in surface roughness of the steel sheet and a significant deterioration tendency in adhesion property, and local corrosion resistance is also likely to deteriorate due to the local unevenness, thereby failing to meet the use requirements. To ensure that the coating amount of the self-lubricating coating is 1.0-2.0g/m 2 The speed ratio of the liquid carrying roller to the strip steel is required to be controlled to be 110-120%, the speed ratio of the coating roller to the strip steel is required to be 125-145%, and the rolling pressure of the liquid carrying roller and the coating roller is required to be 0.3-0.5 kN. The roller speed and the rolling are key factors influencing the coating amount of the coating, if the speed ratio of the strip steel with the liquid roller is less than 110 percent, the speed ratio of the coating roller to the strip steel is less than 125 percent, and the rolling is more than 0.5kN, the liquid amount in unit time is reduced, and the coating amount of the self-lubricating coating is less than 1.0g/m 2 The corrosion resistance and the processing performance are obviously poor, and the use requirement of the material cannot be met; if the speed ratio of the strip steel with the liquid roller is largeWhen the ratio of the speed of the coating roller to the speed of the strip steel is more than 145 percent and the rolling pressure is less than 0.3kN, the liquid amount in unit time is increased, and the coating amount of the self-lubricating coating is more than 2.0g/m 2 The roller coating is easy to cause local unevenness, thereby increasing the surface roughness of the steel plate, obviously deteriorating the bonding performance and not meeting the use requirement.
9. Setting of strip steel drying temperature
The drying temperature of the strip steel is set To be 115-135 ℃, because the steel plate can be fully solidified in the temperature range aiming at the Bonderite O-To 233 chromium-free fingerprint-resistant coating, if the plate temperature is more than 135 ℃, the strip steel is not fully cooled before coiling, the defects of surface color difference of the strip steel can be caused, the energy consumption can be increased, and the manufacturing cost can be increased; if the temperature is less than 115 ℃, moisture in the fingerprint-resistant film cannot be sufficiently volatilized, crosslinking and curing of active substances in the film are insufficient, and the adhesive property, corrosion resistance, weather resistance and processability are seriously deteriorated.
10. Setting of fingerprint-resistant coating composition
The water-based organic resin accounts for 70-85% of the total dry film by weight, the water-based organic resin accounts for less than 70%, the corrosion resistance and the weather resistance of the coating are reduced, the water-based organic resin accounts for more than 85%, and the solvent resistance of the coating is insufficient. The surface energy additive accounts for 0.5 to 3 weight percent of the total dry film, is less than 0.5 weight percent, has insufficient coating cohesiveness, cannot meet the binding requirement, is more than 3 weight percent, has deteriorated coating stability and can also cause the deterioration of the corrosion resistance of the coating. When the content of the silane coupling agent is 6-10 wt% or more and less than 6 wt% of the total dry film, the adhesion of the coating layer to the surface of the steel sheet is insufficient, the corrosion resistance is also reduced, and when the content is more than 10 wt%, the stability of the coating is deteriorated. The corrosion inhibitor accounts for 5-10% of the total dry film by weight, the corrosion resistance of the coating is reduced and is higher than 10%, the adhesion of the coating on the surface of a steel plate is insufficient, and the stability of the coating is influenced. The lubricating additive accounts for 0.5 to 2 percent of the total dry film by weight; below 0.5%, the coating lubricity is not sufficient, which may cause blackening during processing, and above 2%, the coating adhesion, corrosion resistance and solvent resistance are all reduced. In addition, the polyethylene wax particle size in the range of 0.4 to 0.8 μm, higher or lower, may adversely affect the coating adhesion and lubricity.
The metallographic structure of the hot-dip aluminum-zinc plated steel plate produced by the method is ferrite, pearlite and fine cementite, and the grain size grade of the ferrite is I7.0-I9.5 grade. Yield strength R of cold-rolled hot-dip aluminum-zinc plated steel plate with thickness of 0.5-0.8mm P0.2 190MPa to 450MPa, tensile strength R m 270 to 530MPa, elongation after break A 80mm Not less than 16, the bonding strength not less than 0.14MPa, the white rust area in 240h salt spray experiment not more than 3%, and the ultraviolet aging color difference of 500h<2, the dynamic friction coefficient is less than or equal to 0.11.
Compared with the prior art, the invention has the following positive effects:
1. the method is the development of a high-adhesion aluminum-zinc plated steel plate for building foaming, and researches a high-adhesion building foaming aluminum-zinc light plate with the adhesion strength of more than or equal to 0.14 MPa.
2. The aluminum-zinc plated steel plate has excellent comprehensive performance and high corrosion resistance: the area of 240h salt spray white rust is less than 3%, and the high weather resistance is as follows: the color difference of the ultraviolet aging board surface is less than 2 after 500 hours, and the processability is good: the coefficient of dynamic friction is less than or equal to 0.11, and the method can be widely used for producing building sandwich boards, roof boards and wall panels.
3. The hot-dip aluminum-zinc steel plate has a chromium-free surface fingerprint resistant layer, does not contain chromate, completely meets the requirements of EU REACH regulations and ROSH instructions, and is an environment-friendly building material.
4. The hot-dip aluminum-zinc plated steel plate does not need subsequent processes such as color coating and the like, can replace a color plate sandwich plate, has the advantage of low cost, and has wide development prospect.
The specific implementation mode is as follows:
for the purpose of enhancing an understanding of the present invention, the following detailed description is given in conjunction with examples.
Example 1: the invention is further illustrated below with reference to examples 1 to 5, as shown in tables 1 to 6.
Table 1 shows the chemical compositions (in weight%) of the substrates of the hot-dip aluminum-zinc coated steel sheets according to the examples of the present invention, with the balance being Fe and unavoidable impurities.
Table 1 chemical composition of substrate of hot-dip aluminum-zinc coated steel sheet of example of the present invention, unit: weight percent of
| Element(s) | C | Si | Mn | P | S | Alt | N |
| The invention | 0.02％-0.25 | ≤0.06 | 0.12～1.12 | ≤0.025 | ≤0.012 | 0.015～0.065 | ≤0.008 |
| Example 1 | 0.032 | 0.0056 | 0.18 | 0.019 | 0.008 | 0.032 | 0.002 |
| Example 2 | 0.026 | 0.0038 | 0.16 | 0.013 | 0.007 | 0.037 | 0.0015 |
| Example 3 | 0.029 | 0.059 | 0.53 | 0.02 | 0.01 | 0.034 | 0.0028 |
| Example 4 | 0.196 | 0.0128 | 0.87 | 0.021 | 0.009 | 0.028 | 0.0039 |
| Example 5 | 0.027 | 0.0025 | 0.16 | 0.014 | 0.008 | 0.029 | 0.0026 |
Smelting in a converter to obtain a continuous casting billet meeting the requirement on chemical components, wherein the thickness of the continuous casting billet is 210-240 mm, the width of the continuous casting billet is 800-1300 mm, and the length of the continuous casting billet is 5000-10000 mm.
Heating the continuous casting plate blank to 1100-1260 ℃ by a heating furnace, and then carrying out hot rolling, wherein the hot rolling is a two-stage rolling process, the rough rolling is 5-pass continuous rolling, the finish rolling is 7-pass continuous rolling, the finish temperature of the finish rolling is 820-920 ℃, the laminar cooling adopts front-section cooling or full-length cooling, and the coiling temperature is 570-710 ℃ to obtain a hot rolled steel coil with the thickness of 2.0-3.2 mm; the hot rolling process control is shown in Table 2.
TABLE 2 control parameters of the Hot Rolling Process of the inventive examples
Uncoiling a hot-rolled steel coil again, then pickling, cold rolling, annealing by a horizontal continuous annealing furnace, hot-dip coating aluminum and zinc, leveling, roller coating chromium-free fingerprint-resistant coating, drying, and coiling to obtain a finished cold-rolled hot-dip aluminum and zinc-plated steel plate with the thickness of 0.5-0.8mm, wherein the pickling temperature of the strip steel is 55-80 ℃, the cold rolling reduction rate is 70-80%, the temperature of the strip steel in a hard-rolled state after cold rolling in a heating section of the horizontal continuous annealing furnace is 600-plus-one-function, the temperature of the soaking section is 710-770 ℃, the annealing time of the strip steel in the soaking section is 30-45s, the speed of the strip steel is 95-130m/min, the strip steel is put into a zinc pot for hot-dip aluminum and zinc plating, the temperature of the strip steel in the zinc pot is 570-plus-one-function, and the weight of the aluminum and zinc-plated layer on the single surface of the steel plate is 45-100g/m 2 (ii) a The leveling elongation rate is 0.6-1.1%; the control parameters of the cold rolling, annealing and flattening processes are shown in a table 3, and the control parameters of the roller coating and drying processes are shown in a table 4. The components and proportions of the chromium-free fingerprint-resistant coating are shown in Table 5 and Standard 6, respectively.
TABLE 3 control parameters for the cold rolling, annealing and temper rolling process of the examples of the invention
Table 4 control parameters of roll coating and drying processes according to embodiments of the present invention
TABLE 5 fingerprint resistant coating compositions of the examples of the invention
TABLE 6 proportion of each component of fingerprint-resistant coating of the examples of the present invention
The metallographic structure of the hot-dip aluminum-zinc plated steel plate produced by the method is ferrite, pearlite and fine cementite, the grain size grade of the ferrite is I7.0-I9.5 grade, and the yield strength R of the cold-rolled hot-dip aluminum-zinc plated steel plate with the thickness of 0.5-0.8mm P0.2 190MPa to 450MPa, tensile strength R m 270 to 530MPa, elongation after break A 80mm Not less than 16%, bonding strength not less than 0.14MPa, white rust area not more than 3% in 240h salt spray experiment, and ultraviolet aging color difference of 500h<2, the dynamic friction coefficient is less than or equal to 0.11.
According to the part 1 of a GB/T228.1-2010 metal material tensile test, the hot-dip aluminum-zinc plated steel plate obtained by the invention: room temperature test method the mechanical properties of the steel sheets are shown in Table 5.
The hot-dip aluminum-zinc plated steel plate obtained by the invention is subjected to a bonding strength test according to GB/T50404-2017, and the bonding strength of the steel plate is shown in Table 5.
The hot-dip aluminum-zinc plated steel plate obtained by the invention is subjected to 240h salt spray test according to ASTM B117-16, and the salt spray resistance of the steel plate is shown in Table 5.
The hot dip aluminum zinc plated steel plate obtained by the invention is subjected to a 500h ultraviolet aging test according to ASTM G154-2016, and the weather resistance of the steel plate is shown in Table 5.
The hot-dip aluminum-zinc plated steel plate obtained by the invention adopts a Japanese Xindong surface property tester to carry out dynamic friction coefficient measurement, and the test parameters are as follows: load 100g, speed: 150mm/min, a moving distance of 1mm, and a dynamic friction coefficient shown in Table 5.
TABLE 5 comprehensive properties of hot-dip galvanized steel sheets according to examples of the present invention
The hot-dip aluminum-zinc plated steel plate has strong bonding property, bonding strength of more than or equal to 0.14MPa and excellent corrosion resistance: the area of white rust in a 240h salt spray experiment is less than or equal to 3 percent, and the weather resistance is excellent: 500h aged color difference < 2; in addition, the base plate has excellent mechanical properties, has the characteristics of good processing and bearing, and is a product with excellent comprehensive properties.
It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and all equivalent modifications and substitutions based on the above-mentioned technical solutions are within the scope of the present invention as defined in the claims.
Claims (10)
1. The high-adhesion aluminum-zinc plated steel plate for building foaming is characterized in that a substrate comprises the following chemical components in percentage by weight: c: 0.02-0.25%, Si is less than or equal to 0.06%, Mn: 0.12-1.12%, P is less than or equal to 0.025%, S is less than or equal to 0.012%, Alt: 0.01-0.065%, N is less than or equal to 0.008%, and the balance of Fe and inevitable impurity elements.
2. The high-adhesion aluminum-zinc-plated steel sheet for building foaming according to claim 1, wherein the metallographic structure of the hot-dip aluminum-zinc-plated steel sheet is ferrite, pearlite and fine cementite, and the ferrite grain size is in the range of I7.0 to I9.5.
3. A high-adhesion Al-Zn plated steel sheet for construction foaming according to claim 2, wherein the cold-rolled hot-dipped Al-Zn plated steel sheet has a thickness of 0.5 to 0.8mm and a yield strength R P0.2 190MPa to 450MPa, tensile strength R m 270 to 530MPa, elongation after break A 80mm Not less than 16%, bonding strength not less than 0.14MPa, white rust area not more than 3% in 240h salt spray experiment, and ultraviolet aging color difference of 500h<2, the dynamic friction coefficient is less than or equal to 0.11.
4. The method for manufacturing the high-adhesion aluminum-zinc-plated steel plate for building foaming according to any one of claims 1 to 3, which is characterized by comprising the following steps: continuously casting molten steel to obtain a continuous casting slab, wherein the molten steel comprises the following chemical components in percentage by weight: c: 0.02-0.25%, Si is less than or equal to 0.06%, Mn: 0.12-1.12%, P is less than or equal to 0.025%, S is less than or equal to 0.012%, Alt: 0.015-0.065%, N is less than or equal to 0.008%, and the balance is Fe and inevitable impurity elements; heating the continuous casting plate blank to 1100-1260 ℃ by a heating furnace, and then carrying out hot rolling, wherein the hot rolling is a two-stage rolling process, the rough rolling is 5-pass continuous rolling, the finish rolling is 7-pass continuous rolling, the finish rolling temperature is 820-920 ℃, the laminar cooling adopts front-section cooling or full-length cooling, the coiling temperature is 570-710 ℃, and coiling is carried out to obtain a hot rolled steel coil with the thickness of 2.0-3.2 mm; and (3) uncoiling the hot-rolled steel coil again, then carrying out acid pickling, cold rolling, annealing by a horizontal continuous annealing furnace, hot-dip coating with aluminum and zinc, leveling, roller coating with a chromium-free fingerprint-resistant coating, drying, and coiling to obtain a finished product of the cold-rolled hot-dip aluminum and zinc steel plate with the thickness of 0.5-0.8 mm.
5. The high-adhesion aluminum-zinc-plated steel plate for building foaming as claimed in claim 4, wherein the acid pickling temperature of the steel plate is 55-80 ℃, the cold rolling reduction rate is 70-80%, the temperature of the steel plate in a hard rolling state after cold rolling in the heating section of the horizontal continuous annealing furnace is 600- 2 (ii) a The leveling elongation rate is 0.6-1.1%; the chromium-free fingerprint-resistant coating is directly coated on the surface of the hot-dip aluminum-zinc coated steel plate by adopting a roller coating process, the roller coating process adopts a reverse coating mode, and the coating amount of the chromium-free fingerprint-resistant coating is 1.0-2.0g/cm 2 The speed ratio of the liquid carrying roller to the strip steel is 110-120%, the speed ratio of the coating roller to the strip steel is 125-145%, the rolling speed of the liquid carrying roller to the coating roller is 0.3-0.5kN, the surface roughness Ra of the liquid carrying roller is 6.5-7.0 μm, and the surface roughness Ra of the coating roller is 1.5-2.0 μm; and drying the steel plate by using a drying furnace in the modes of electromagnetic induction heating and hot air drying, wherein the drying temperature of the steel plate is 105-135 ℃.
6. The high-adhesion aluminum-zinc-plated steel sheet for building foaming according to claim 5, wherein the thickness of the hot-rolled steel sheet is controlled to be 2.0 to 3.2mm after finish rolling.
7. The high-adhesion aluminum-zinc-plated steel plate for building foaming according to claim 6, wherein the chromium-free fingerprint-resistant coating dry film consists essentially of the following components in parts by weight: aqueous organic resin: 70-85%, surface energy auxiliary agent: 0.5% -3%, silane coupling agent: 6-10%, resist: 5-10%, lubricating assistant: 0.5-2%; solid content of the coating: 16-22%, pH: 7.2-9.6, density: 1.0-1.1g/cm 3; viscosity: 10-95 mpas.
8. The high-adhesion aluminum-zinc-plated steel plate for building foaming according to claim 7, wherein the aqueous organic resin is an aqueous polyurethane resin and a hydroxyl-modified aqueous acrylic resin, and the ratio of the aqueous organic resin to the hydroxyl-modified aqueous acrylic resin is 2-5: 1.
9. the high-adhesion aluminum-zinc-plated steel plate for building foaming according to claim 7, wherein the surface energy aid is one or more of polymethylalkylsiloxane and polydimethylsiloxane, and the silane coupling agent is one or more of aminopropyltriethoxysilane, gamma-mercaptopropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane and gamma-methacrylamidopropyltrimethoxysilane.
10. The high-adhesion aluminum-zinc-plated steel plate for building foaming according to claim 7, wherein the corrosion inhibitor is at least three of cerium nitrate, lanthanum nitrate, vanadium trioxide, vanadium pentoxide, sodium metavanadate, ammonium zirconium carbonate, potassium fluorotitanate and ammonium fluorotitanate, the lubricating additive is polyethylene wax, and the particle size is 0.4-0.8 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299306.1A CN115109991A (en) | 2021-03-21 | 2021-03-21 | High-adhesion aluminum-zinc-plated steel plate for building foaming and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299306.1A CN115109991A (en) | 2021-03-21 | 2021-03-21 | High-adhesion aluminum-zinc-plated steel plate for building foaming and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115109991A true CN115109991A (en) | 2022-09-27 |
Family
ID=83323848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110299306.1A Pending CN115109991A (en) | 2021-03-21 | 2021-03-21 | High-adhesion aluminum-zinc-plated steel plate for building foaming and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115109991A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116445815A (en) * | 2023-04-07 | 2023-07-18 | 武汉钢铁有限公司 | Ultralow-gloss electrogalvanized fingerprint-resistant steel plate for stamping and manufacturing method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363857A (en) * | 2011-11-02 | 2012-02-29 | 武汉钢铁(集团)公司 | Method for producing color-coated plate for structure with yield strength of more than or equal to 550 MPa |
| CN102746778A (en) * | 2012-06-29 | 2012-10-24 | 宝山钢铁股份有限公司 | Galvanizing steel strip with good conductivity, high corrosion resistance and fingerprint resistance, surface treatment agent and treatment method |
| CN105062239A (en) * | 2015-08-13 | 2015-11-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation methods of coating solution with high corrosion resistance and hot-dipped aluminum-zinc plate with finger resistance |
| CN107034416A (en) * | 2017-04-10 | 2017-08-11 | 攀钢集团研究院有限公司 | Hot-dip coating aluminium-zinc alloy steel plate and preparation method thereof |
| CN107419180A (en) * | 2017-08-16 | 2017-12-01 | 马鞍山钢铁股份有限公司 | A kind of yield strength >=250MPa electrogalvanizing cold-rolled steel sheet and production method |
| CN107652799A (en) * | 2017-09-27 | 2018-02-02 | 江阴长发耐指纹钢板有限公司 | Fingerprint-resisting water borne coating on galvanized sheet and preparation method thereof |
| CN109797346A (en) * | 2019-02-28 | 2019-05-24 | 日照钢铁控股集团有限公司 | A kind of 450MPa grades of light steel construction hot radical is without flower high-strength galvanizing plate and its production method |
| CN111304641A (en) * | 2020-02-21 | 2020-06-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Hot-dip aluminum-zinc plate chromium-free passivation solution and preparation method of hot-dip aluminum-zinc fingerprint-resistant plate |
| CN112226674A (en) * | 2019-06-30 | 2021-01-15 | 上海梅山钢铁股份有限公司 | Aging-resistant cold-rolled hot-galvanized steel plate for household appliances and production method thereof |
-
2021
- 2021-03-21 CN CN202110299306.1A patent/CN115109991A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363857A (en) * | 2011-11-02 | 2012-02-29 | 武汉钢铁(集团)公司 | Method for producing color-coated plate for structure with yield strength of more than or equal to 550 MPa |
| CN102746778A (en) * | 2012-06-29 | 2012-10-24 | 宝山钢铁股份有限公司 | Galvanizing steel strip with good conductivity, high corrosion resistance and fingerprint resistance, surface treatment agent and treatment method |
| WO2014000527A1 (en) * | 2012-06-29 | 2014-01-03 | 宝山钢铁股份有限公司 | Galvanized steel strip with good conductivity, high corrosion resistance and fingerprint resistance, and surface treatment agent and treatment method |
| CN105062239A (en) * | 2015-08-13 | 2015-11-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation methods of coating solution with high corrosion resistance and hot-dipped aluminum-zinc plate with finger resistance |
| CN107034416A (en) * | 2017-04-10 | 2017-08-11 | 攀钢集团研究院有限公司 | Hot-dip coating aluminium-zinc alloy steel plate and preparation method thereof |
| CN107419180A (en) * | 2017-08-16 | 2017-12-01 | 马鞍山钢铁股份有限公司 | A kind of yield strength >=250MPa electrogalvanizing cold-rolled steel sheet and production method |
| CN107652799A (en) * | 2017-09-27 | 2018-02-02 | 江阴长发耐指纹钢板有限公司 | Fingerprint-resisting water borne coating on galvanized sheet and preparation method thereof |
| CN109797346A (en) * | 2019-02-28 | 2019-05-24 | 日照钢铁控股集团有限公司 | A kind of 450MPa grades of light steel construction hot radical is without flower high-strength galvanizing plate and its production method |
| CN112226674A (en) * | 2019-06-30 | 2021-01-15 | 上海梅山钢铁股份有限公司 | Aging-resistant cold-rolled hot-galvanized steel plate for household appliances and production method thereof |
| CN111304641A (en) * | 2020-02-21 | 2020-06-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Hot-dip aluminum-zinc plate chromium-free passivation solution and preparation method of hot-dip aluminum-zinc fingerprint-resistant plate |
Non-Patent Citations (2)
| Title |
|---|
| 曹旭等: "镀锌板无铬耐指纹涂料助剂的研究", 材料保护, no. 10, pages 31 - 34 * |
| 胡华东等: "高端家电用热镀锌耐指纹钢板产品开发", 钢铁钒钛, no. 02, pages 169 - 173 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116445815A (en) * | 2023-04-07 | 2023-07-18 | 武汉钢铁有限公司 | Ultralow-gloss electrogalvanized fingerprint-resistant steel plate for stamping and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10941459B2 (en) | 600 MPa yield strength-graded, high-stretchability hot-dip aluminum-zinc and color-coated steel plate and manufacturing method therefor | |
| CA2995290C (en) | Aluminium-zinc-hot-dipped and colour-coated steel plate having a 500 mpa yield strength grade and a high elongation and a manufacturing method thereof | |
| CN108866428B (en) | Hot-dip aluminum-zinc steel plate with yield strength of 550MPa and manufacturing method thereof | |
| CN110863137B (en) | Method for manufacturing hot-dip aluminum-zinc steel plate | |
| CN115011873A (en) | Hot-galvanized high-strength structural steel with yield strength of 550MPa and production method thereof | |
| CN105401071A (en) | Galvanized dual-phase steel for 500 MPa class car and production method | |
| CN112553523B (en) | Self-lubricating hot-dip galvanized steel plate for steel-wood composite floor and manufacturing method thereof | |
| CN113718166B (en) | Hot-dip aluminum-zinc steel plate with yield strength of 320MPa and manufacturing method thereof | |
| CN115109991A (en) | High-adhesion aluminum-zinc-plated steel plate for building foaming and manufacturing method thereof | |
| CN113528945B (en) | High-hole-expansion-ratio alloying hot-dip galvanized high-strength steel and preparation method thereof | |
| CN113215486B (en) | Hot-base galvanized high-hole-expansion dual-phase steel and preparation method thereof | |
| CN110541107B (en) | Hot-dip aluminum-zinc steel plate with tensile strength of 600MPa and manufacturing method thereof | |
| JP4890492B2 (en) | Method for producing alloyed hot-dip galvanized steel sheet with excellent paint bake hardening performance | |
| CN113604637A (en) | Production method and application of hot-dip galvanized plate with tensile strength of 500MPa | |
| KR100454745B1 (en) | A method for manufacturing hot rolled galvanized iron steel sheets having high yield ratio | |
| CN112430788A (en) | Hot-dip galvanized steel sheet for 304 stainless steel composite board and manufacturing method thereof | |
| CN116179960B (en) | Thin GI high-strength steel strip with 700 MPa-grade yield strength and production method thereof | |
| CN115505833B (en) | Hot dip aluminized zinc steel plate with yield strength of 450MPa and manufacturing method thereof | |
| CN108914001A (en) | A kind of high-strength hot-dip zinc-coated steel sheet and its preparation process | |
| CN114250408B (en) | Hot-dip aluminum-zinc embossed steel plate with yield strength of 280MPa and manufacturing method thereof | |
| CN114990445B (en) | 550 MPa-level high-corrosion-resistance coated steel sheet produced by short process and method | |
| CN115074616A (en) | Hot-dip aluminum-zinc steel plate for refrigerator bottom plate and manufacturing method thereof | |
| CN117327970A (en) | Hot-dip aluminized zinc-plated steel plate with yield strength of 350MPa and manufacturing method thereof | |
| CN116904844A (en) | Geppa-grade cold-base galvanized high-strength steel and preparation method thereof | |
| CN117265380A (en) | 800 MPa-level high-reaming hot-dip galvanized steel plate and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |