CN107523780B - Composite protective coating of sink roller for hot dip plating and preparation method - Google Patents
Composite protective coating of sink roller for hot dip plating and preparation method Download PDFInfo
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- CN107523780B CN107523780B CN201610455659.5A CN201610455659A CN107523780B CN 107523780 B CN107523780 B CN 107523780B CN 201610455659 A CN201610455659 A CN 201610455659A CN 107523780 B CN107523780 B CN 107523780B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
Abstract
The invention discloses a composite protective coating of a sink roll for hot dipping and a preparation method thereof, wherein the composite protective coating comprises a priming layer, a transition layer and a working layer; the bottom layer is a CoCrW coating, and the transition layer is CaO, seed or SiO2Coating and working layer of mixture proportional to CoCrW are CaO, seed and SiO2Coating; the thermal expansion coefficient relations between the coatings and the roller body are respectively set. The priming layer is sprayed by adopting supersonic flame spraying equipment, the transition layer and the working layer are sprayed by adopting plasma spraying equipment, and corresponding process parameters are respectively set in the coating forming process, so that the composite protective coating is obtained on the surface of the sink roll. The composite protective coating has good thermal expansion matching property with the roller base metal through the design of the coating structure, and the purpose that the composite protective coating can be stably applied in actual production for a long time is achieved; the preparation method is simple to operate, and the composite protective coating can be prepared on the surface of the roller.
Description
Technical Field
The invention relates to a composite protective coating of a sink roller for hot dip plating and a preparation method thereof.
Background
At present, hot galvanizing treatment is mostly carried out on corrosion-resistant steel products, the hot galvanizing technology becomes the most economical and effective method applied to the corrosion resistance of steel, and hot galvanized plates have good corrosion resistance, processing formability, weldability, coating property and environmental protection property and are widely applied to a plurality of manufacturing fields of buildings, household appliances, vehicles and ships, containers, electromechanics and the like.
In a continuous hot galvanizing production line, zinc liquid has strong corrosivity on each part in a zinc pot, particularly a sink roll, the surface state of which is very important and directly influences the surface quality of a steel plate. In actual production, hard intermetallic compound particles can be generated in a zinc pot due to corrosion of zinc liquid to components and abrasion of galvanized products (such as strip steel) to the components, so that the service life of each component is shortened; meanwhile, products (Fe-Zn intermetallic compounds) formed by corrosion are deposited in molten zinc liquid or deposited on a sink roll to form nodules, so that the surface of a coating is damaged, and the quality of the product is influenced. Therefore, in actual production, the occurrence of corrosion needs to be inhibited, and the formation of corrosion products is reduced, so that the production stop time is reduced, the quality of a coating is improved, the cost for maintaining and replacing parts is reduced, energy is saved, and the environment is improved.
In order to achieve the purpose, the surface of the continuous hot galvanizing sink roll is generally subjected to spraying protection treatment at home and abroad, so that the situation that the quality of galvanized steel sheets is influenced due to coarsening of the roll surface caused by alloying corrosion reaction caused by direct contact of liquid zinc and the sink roll is prevented. In order to improve the surface quality of the hot-dip galvanized steel sheet, various companies seek to improve the service life of the sink roll and improve the surface state of the sink roll. The currently adopted sink roll protective layer materials are mainly WC-Co, Fe-Al coatings and the like, the hardness of the coatings is obviously higher than that of a sink roll substrate SUS-316L stainless steel, the coatings have good wear resistance and corrosion resistance, and the service life of the sink roll can be prolonged to a certain extent.
With the development of hot-dip coating technology, high-aluminum zinc coating has become an important branch of the development of domestic and foreign zinc coating technology. The hot-dip high-aluminum zinc (55% Al) coated steel plate is used as a steel product with high added value, has better mechanical property and stronger oxidation resistance than hot-dip pure zinc and hot-dip low-aluminum zinc coated steel plates, and has good coating property, processability and economy, particularly has excellent corrosion resistance; the method is widely applied to the manufacturing fields of buildings, household appliances, industrial instruments, automobiles and the like, and has very wide market prospect. However, the temperature of the molten high-aluminum zinc liquid is as high as 550-650 ℃, which is 100-200 ℃ higher than that of common hot-dip pure zinc (about 450 ℃), and the high-aluminum zinc liquid has stronger corrosivity, so that the conventional hot-spray coatings of WC-Co, WC-Co-Cr, Fe-Al and the like cannot effectively resist the corrosion of the zinc-aluminum liquid, and the service life of the sink roll is greatly reduced. Therefore, the service life of the sink roll and the stabilizing roll is short, and the sink roll and the stabilizing roll become bottleneck factors for restricting the high-efficiency production of the hot-dip high-aluminum zinc plate.
In order to prolong the service life of the sink roll and improve the quality of strip steel, a plurality of coatings such as WC-Co, MoB-CoCr and the like are tried in the early stage, but the effects are not ideal. WC-Co can be decomposed at the temperature of more than 540 ℃, so that the WC-Co can not be used in a high-aluminum zinc pot; although the MoB-CoCr has good protective performance, in actual use, the zinc adhesion of the roll surface is still serious, thereby bringing great influence on the quality of the strip steel. And the coating has poor reusability and high actual use cost. And the newly developed CaO, or SiO2The coating has good anti-adhesion performance, but has poor matching performance with the metal base materials of the sink roll and the stabilizing roll (CaO-SiO at the temperature of 20-700 ℃) due to low thermal expansion coefficient2The thermal expansion coefficient of the coating is 6.5 multiplied by 10-6K, the coefficient of thermal expansion of the base metal of the sink roll and the stabilizing roll is 18.9X 10-6K), the coating is very susceptible to stress cracking or peeling, and it is difficult to meet the long-life use requirements of the roller.
In order to solve the problem of stress cracking and peeling of the coating caused by the difference of thermal expansion properties, a common method is to add a priming layer and a transition layer between the roller base material and the working coating, so that the stress generated by the difference of thermal expansion coefficients is decomposed layer by layer, and the layers bear smaller stress. Therefore, the strength of the coating is enough to resist the decomposed stress, so that the aim of preventing the coating from stress cracking and peeling caused by the stress action generated by the difference of the thermal expansion coefficients is fulfilled. However, the selection of the materials of the working coating, the bottom layer and the transition layer and the matching of the thermal expansion performance of each coating are the key points for improving the service life and the performance of the sink roll.
Disclosure of Invention
The invention provides a composite protective coating of a sink roller for hot dip plating and a preparation method thereof, wherein the composite protective coating has good thermal expansion matching property with a roller base metal through the design of a coating structure, so that the aim of stably applying the composite protective coating in actual production for a long time is fulfilled; the preparation method is simple to operate, and the composite protective coating can be prepared on the surface of the roller.
In order to solve the technical problem, the composite protective coating of the sink roll for hot dip plating comprises a bottom layer, a transition layer and a working layer; the bottom layer is a CoCrW coating, and the transition layer is CaO, seed or SiO2Coating mixed with CoCrW in proportion, and the working layer is CaO, seed or SiO2Coating; the coefficient of thermal expansion CTE1 of the bottom layer material is between the coefficient of thermal expansion CTE0 of the roller body material and the coefficient of thermal expansion CTE3 of the working layer material, and CTE1=2CTE0/3+ CTE3/3 is satisfied; the coefficient of thermal expansion CTE2 of the transition layer material is between the coefficient of thermal expansion CTE0 of the roller body material and the coefficient of thermal expansion CTE3 of the working layer material, and CTE2= CTE0/3+2CTE3/3 is satisfied.
Further, setting CaO, and SiO in the transition layer2The volume of the material is V1, the volume of the CoCrW material is V2, and the mixing ratio is V1: V2= (CTE0-CTE1): (CTE1-CTE 2).
Further, the fluctuation range of the CTE1 of the primer layer material and the CTE2 of the transition layer material was. + -. 0.5X 10-6/K。
Further, the thickness of the bottom layer and the thickness of the transition layer are respectively 30-60 mu m, and the thickness of the working layer is 100-300 mu m.
Further, CaO, or SiO of the transition layer2And the CoCrW mixture is prepared by a mechanical mixing method, and the powder granularity is in the range of 15-45 mu m.
The preparation method of the composite protective coating comprises the following steps:
firstly, spraying a priming layer by adopting supersonic flame spraying equipment, wherein the technological parameters of the coating forming process comprise the oxygen flow rate of 850-900 liters/minute, the kerosene flow rate of 0.3-0.4 liters/minute, the spraying distance of 350-390mm and the hot spraying powder supply speed of 40-50 g/minute;
secondly, spraying the transition layer by using plasma spraying equipment, wherein the process parameters of the coating forming process are 800-900A of current, 35-42V of voltage, 90-100mm of spraying distance and 10-20 g/min of powder supply speed of thermal spraying;
and thirdly, spraying the working layer by using plasma spraying equipment, wherein the technological parameters of the coating forming process are 800-900A of current, 35-42V of voltage, 90-100mm of spraying distance and 10-20 g/min of powder supply speed of thermal spraying, and the composite protective coating is obtained on the surface of the sink roller.
The composite protective coating of the sink roller for hot dip plating and the preparation method adopt the technical scheme, namely the composite protective coating comprises a bottom layer, a transition layer and a working layer; the bottom layer is a CoCrW coating, and the transition layer is CaO, seed or SiO2Coating and working layer of mixture proportional to CoCrW are CaO, seed and SiO2Coating; the thermal expansion coefficient relations between the coatings and the roller body are respectively set. Spraying the priming layer by adopting supersonic flame spraying equipment, and setting corresponding process parameters in the coating forming process; and respectively spraying the transition layer and the working layer by using plasma spraying equipment, and setting corresponding process parameters in the coating forming process so as to obtain the composite protective coating on the surface of the sink roll. The composite protective coating has good thermal expansion matching property with the roller base metal through the design of the coating structure, and the purpose that the composite protective coating can be stably applied in actual production for a long time is achieved; the preparation method is simple to operate, and the composite protective coating can be prepared on the surface of the roller.
Detailed Description
The composite protective coating of the sink roll for hot dip plating comprises a priming layer, a transition layer and a working layer; the bottom layer is a CoCrW coating, and the transition layer is CaO, seed or SiO2Coating mixed with CoCrW in proportion, and the working layer is CaO, seed or SiO2Coating; the coefficient of thermal expansion CTE1 of the bottom layer material is between the coefficient of thermal expansion CTE0 of the roller body material and the coefficient of thermal expansion CTE3 of the working layer material, and CTE1=2CTE0/3+ CTE3/3 is satisfied; the coefficient of thermal expansion CTE2 of the transition layer material is between the coefficient of thermal expansion CTE0 of the roller body material and the coefficient of thermal expansion CTE3 of the working layer material, and CTE2= CTE0/3+2CTE3/3 is satisfied.
Preferably, CaO, or SiO in the transition layer is set2The volume of the material is V1, the volume of the CoCrW material is V2, and the mixing ratio is V1: V2= (CTE0-CTE1): (CTE1-CTE 2).
Suppose that: roller base CTE0=1.8 × 10-5K (e.g. stainless steel), working layer CTE3=0.9 × 10-5K (e.g., certain ceramic materials), then:
priming a bottom layer: CTE1=2CTE0/3+ CTE3/3= (2 × 1.8 × 10)-5 /3）+0.9×10-5/3=1.5×10-5/K
Transition layer: CTE2= CTE0/3+2CTE3/3= (1.8 × 10)-5/3）+2×0.9×10-5/3=1.2×10-5/K
Thus V1: V2= (CTE0-CTE1): (CTE1-CTE2) = [ (1.8X 10) =-5)-( 1.5×10-5）]：[（1.5×10-5)-( 1.2×10-5）]=( 0.3×10-5)：(0.3×10-5)=1：1
I.e. the mixing ratio of the two materials in the transition layer is 1: 1.
Preferably, the coefficient of thermal expansion CTE1 of the primer layer material and the coefficient of thermal expansion CTE2 of the transition layer material fluctuate within a range of + -0.5X 10-6/K。
Preferably, the thickness of the bottom layer and the thickness of the transition layer are respectively 30-60 mu m, and the thickness of the working layer is 100-300 mu m.
Preferably, CaO, seeding or SiO of said transition layer2And the CoCrW mixture is prepared by a mechanical mixing method, and the powder granularity is in the range of 15-45 mu m.
The preparation method of the composite protective coating comprises the following steps:
firstly, spraying a priming layer by adopting supersonic flame spraying equipment, wherein the technological parameters of the coating forming process comprise the oxygen flow rate of 850-900 liters/minute, the kerosene flow rate of 0.3-0.4 liters/minute, the spraying distance of 350-390mm and the hot spraying powder supply speed of 40-50 g/minute;
secondly, spraying the transition layer by using plasma spraying equipment, wherein the process parameters of the coating forming process are 800-900A of current, 35-42V of voltage, 90-100mm of spraying distance and 10-20 g/min of powder supply speed of thermal spraying;
and thirdly, spraying the working layer by using plasma spraying equipment, wherein the technological parameters of the coating forming process are 800-900A of current, 35-42V of voltage, 90-100mm of spraying distance and 10-20 g/min of powder supply speed of thermal spraying, and the composite protective coating is obtained on the surface of the sink roller.
Aiming at the defects in the prior art, the invention provides a novel CaO, seed and SiO2The thermal spraying composite protective coating of the CoCrW alloy and the preparation method thereof ensure that the protective coating on the surface of the roller body and the roller base metal have good thermal expansion matching property through the structural design of the coating, thereby achieving the purpose that the surface protective coating can be stably applied in the actual production for a long time.
CaO, or SiO used in working layer of said composite protective coating2The material has good high aluminum zinc liquid corrosion resistance and zinc slag adhesion resistance, but the material has small thermal expansion coefficient, so that the material is easy to have too large difference with the thermal expansion coefficient of a base parent metal to cause coating cracking and peeling (at 20-700 ℃) at high temperatureoC, CaO, or SiO2Coefficient of thermal expansion of about 6.5X 10-6The thermal expansion coefficient of the metal base material of the sink roll and the stabilizing roll is 18.9 multiplied by 10-6K), for this purpose, the gradual transition of the thermal expansion coefficient needs to be realized through the structural design of the coating. The CoCrW alloy material has a thermal expansion coefficient of about 14.7 x 10 at 20-700 DEG C-6The thermal expansion coefficient of the/K is closer to that of the base materials of the sink roll and the stabilizing roll, and the/K has good high aluminum zinc liquid corrosion resistance, can be used as a base layer and can form good combination with the base materials. At the same time, through CaO, seed and SiO2And the content ratio of two basic components of the CoCrW alloy is adjusted, so that the thermal expansion coefficient of the transition layer is in CaO, seed or SiO2And a CoCrW alloy, namely under the condition of not changing the basic components of the original coating material, the proportion content of the two components is adjusted in a gradient gradual change mode, so that the surface gradient protective coating which is matched and combined with the roller parent metal well, has strong stress crack resistance and peeling capacity and excellent high aluminum zinc melt corrosion resistance is obtained.
Selecting a sample with the size of phi 30 multiplied by 80, wherein the material is the steel material 00Cr17Ni14Mo2 for the hot-dip high-aluminum zinc sink roll/stabilizing roll, and the thermal expansion coefficient is 18.9 multiplied by 10-6and/K. Working layer CaO or seed SiO2Coefficient of thermal expansion of 6.5X 10-6K, phase with sample materialThe difference is large, if the working layer is directly sprayed on the sample, the thermal expansion matching of the working layer and the sample is poor, and the coating is easy to crack and peel; for this purpose, the thermal expansion coefficient was selected to be (2/3X 18.9+ 1/3X 6.5). times.10-6/K=14.7×10-6The bottom layer is made of/K CoCrW material, and the transition layer has a thermal expansion coefficient of (1/3 × 18.9+2/3 × 6.5) × 10-6/K=10.6×10-6and/K. Further, CaO, seeds and SiO in the transition layer material2And the proportion of the basic components of CoCrW, and the approximate calculation can be carried out according to the composite design principle.
Table one shows the specific parameters of the roller material, the priming layer, the transition layer and the working layer in the three embodiments; the preparation of the base coat adopts a supersonic flame spraying method, uses JP-5000 thermal spraying equipment of Praxair/TAFA company, and the technological parameters in the coating forming process are as follows: the flow rate of oxygen is 850-900 l/min, the flow rate of kerosene is 0.3-0.4 l/min, the spraying distance is 350-390mm, and the powder feeding speed of thermal spraying is 40-50 g/min. The transition layer and the working layer are prepared by adopting a plasma spraying method and using Praxair/TAFA SG100 thermal spraying equipment, and the process parameters in the coating forming process are as follows: the current is 800-900A, the voltage is 35-42V, the spraying distance is 90-100mm, and the powder feeding speed of thermal spraying is 10-20 g/min.
The thermally sprayed test piece was used for a thermal shock test in which the test piece was heated to 670oC, uniformly heating the whole body, taking out the quenching water and cooling to room temperature; the procedure is repeated until the composite protective coating on the surface of the sample cracks, peels or peels off, and the thermal shock frequency of the cracks, peels or peels is recorded. If the number of thermal shocks is less than 5, the comment is represented by symbol Ï; if the number of thermal shocks is between 5 and 10, the comment is represented by a symbol; if the number of thermal shocks > 10, the comment is indicated by a symbol. The results of the three examples and comparative examples are shown in the table, wherein the high thermal shock times indicate that the composite protective coating has a strong resistance to stress cracking or peeling caused by mismatched thermal expansion coefficients, and the lower thermal shock times indicate that the composite protective coating is easy to generate stress cracking or peeling caused by mismatched thermal expansion coefficients. As can be seen from Table one, the comparison case pairsIn comparison, the composite protective coating of each example has good thermal matching with the roller material.
Table one:
Claims (6)
1. a composite protective coating of a sink roll for hot dip plating is characterized in that: the composite protective coating comprises a priming layer, a transition layer and a working layer; the bottom layer is a CoCrW coating, and the transition layer is CaO, seed or SiO2Coating mixed with CoCrW in proportion, and the working layer is CaO, seed or SiO2Coating; the coefficient of thermal expansion CTE1 of the bottom layer material is between the coefficient of thermal expansion CTE0 of the roller body material and the coefficient of thermal expansion CTE3 of the working layer material, and CTE1=2CTE0/3+ CTE3/3 is satisfied; the coefficient of thermal expansion CTE2 of the transition layer material is between the coefficient of thermal expansion CTE0 of the roller body material and the coefficient of thermal expansion CTE3 of the working layer material, and CTE2= CTE0/3+2CTE3/3 is satisfied.
2. The composite protective coating of a sink roll for hot dip plating according to claim 1, characterized in that: setting CaO, or SiO in transition layer2The volume of the material is V1, the volume of the CoCrW material is V2, and the mixing ratio is V1: V2= (CTE0-CTE1): (CTE1-CTE 2).
3. The composite protective coating of a hot dip sink roll according to claim 1 or 2, characterized in that: the coefficient of thermal expansion CTE1 of the primer layer material and the coefficient of thermal expansion CTE2 of the transition layer material fluctuate within a range of + -0.5X 10-6/K。
4. The composite protective coating of a sink roll for hot dip plating according to claim 3, characterized in that: the thickness of the bottom layer and the thickness of the transition layer are respectively 30-60 mu m, and the thickness of the working layer is 100-300 mu m.
5. The hot dip coating as set forth in claim 3The composite protective coating of the sink roll is characterized in that: CaO, seed, or SiO of the transition layer2And the CoCrW mixture is prepared by a mechanical mixing method, and the powder granularity is in the range of 15-45 mu m.
6. A method for preparing a composite protective coating according to any one of claims 1 to 5, characterized in that it comprises the following steps:
firstly, spraying a priming layer by adopting supersonic flame spraying equipment, wherein the technological parameters of the coating forming process comprise the oxygen flow rate of 850-900 liters/minute, the kerosene flow rate of 0.3-0.4 liters/minute, the spraying distance of 350-390mm and the hot spraying powder supply speed of 40-50 g/minute;
secondly, spraying the transition layer by using plasma spraying equipment, wherein the process parameters of the coating forming process are 800-900A of current, 35-42V of voltage, 90-100mm of spraying distance and 10-20 g/min of powder supply speed of thermal spraying;
and thirdly, spraying the working layer by using plasma spraying equipment, wherein the technological parameters of the coating forming process are 800-900A of current, 35-42V of voltage, 90-100mm of spraying distance and 10-20 g/min of powder supply speed of thermal spraying, and the composite protective coating is obtained on the surface of the sink roller.
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| JP7150836B2 (en) * | 2018-05-23 | 2022-10-11 | 日本製鉄株式会社 | Pass roll for hot-dip galvanized steel sheet manufacturing equipment, hot-dip galvanized steel sheet manufacturing equipment, and hot-dip galvanized steel sheet manufacturing method |
| CN111424229B (en) * | 2018-12-20 | 2022-12-27 | 上海宝钢工业技术服务有限公司 | Preparation method of composite coating resistant to liquid metal alloy etching |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06184722A (en) * | 1992-12-22 | 1994-07-05 | Onoda Cement Co Ltd | Thermal-spraying material and thermal-spraying coated member |
| JP2003027200A (en) * | 2001-07-17 | 2003-01-29 | Nisshin Steel Co Ltd | Snout in continuous hot-dipping device |
| CN1978705A (en) * | 2005-11-29 | 2007-06-13 | 上海宝钢设备检修有限公司 | Surface gradient protective coating and its preparing method |
| CN102191449A (en) * | 2010-03-16 | 2011-09-21 | 广东工业大学 | Anti-melting aluminum-silicon alloy corrosion gradient protective coating for solar thermal power generation, and preparation thereof |
| CN104805413A (en) * | 2015-04-08 | 2015-07-29 | 无锡杰夫电声有限公司 | Method for preparing surface coating of NdFeB permanent-magnet material |
-
2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06184722A (en) * | 1992-12-22 | 1994-07-05 | Onoda Cement Co Ltd | Thermal-spraying material and thermal-spraying coated member |
| JP2003027200A (en) * | 2001-07-17 | 2003-01-29 | Nisshin Steel Co Ltd | Snout in continuous hot-dipping device |
| CN1978705A (en) * | 2005-11-29 | 2007-06-13 | 上海宝钢设备检修有限公司 | Surface gradient protective coating and its preparing method |
| CN102191449A (en) * | 2010-03-16 | 2011-09-21 | 广东工业大学 | Anti-melting aluminum-silicon alloy corrosion gradient protective coating for solar thermal power generation, and preparation thereof |
| CN104805413A (en) * | 2015-04-08 | 2015-07-29 | 无锡杰夫电声有限公司 | Method for preparing surface coating of NdFeB permanent-magnet material |
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