CN113755797A - System and method for moving heating and coating Zn layer on surface of strip steel - Google Patents
System and method for moving heating and coating Zn layer on surface of strip steel Download PDFInfo
- Publication number
- CN113755797A CN113755797A CN202010488213.9A CN202010488213A CN113755797A CN 113755797 A CN113755797 A CN 113755797A CN 202010488213 A CN202010488213 A CN 202010488213A CN 113755797 A CN113755797 A CN 113755797A
- Authority
- CN
- China
- Prior art keywords
- strip steel
- coating device
- spray coating
- coating
- vacuum chamber
- 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
- C23C14/26—Vacuum evaporation by resistance or inductive heating of the source
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/16—Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
- C23C14/562—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks for coating elongated substrates
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/58—After-treatment
- C23C14/5806—Thermal treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a system for moving heating and coating a Zn layer on the surface of strip steel, which comprises: a vacuum chamber having a cavity therein; a non-contact induction heater disposed within the vacuum chamber; the first spray coating device is arranged in the vacuum chamber and is arranged at the downstream of the non-contact induction heater along the moving direction of the strip steel, and the first spray coating device and the non-contact induction heater are respectively arranged at two sides of the strip steel; and the cooling roller is arranged in the vacuum chamber and is arranged at the downstream of the first spray coating device along the moving direction of the strip steel. The invention also discloses a method for moving heating and coating the Zn layer on the surface of the strip steel, which is implemented by the system. The system for moving heating and coating the Zn layer on the surface of the strip steel has simple structure and convenient operation, and can effectively avoid the defects of different coating viscous forces when the process is applied to different areas by preheating and homogenizing the strip steel before coating.
Description
Technical Field
The present disclosure relates to heating systems and, particularly, to a heating system and a heating method.
Background
The Physical Vapor Deposition (PVD) technique is a technique of heating a metal to be plated under vacuum to deposit the metal onto a substrate in a gaseous state, and is classified into an electrical heating (resistive or inductive type) and an electron beam gun heating (EBPVD) according to the heating method. Accordingly, vacuum coating has been widely used in the electronics, glass, plastic, and other industries as a surface modification and coating process. The technology has the main advantages of environmental protection, good coating performance and the diversity of the substances capable of being coated.
The key to applying the vacuum coating technology in the continuous strip steel lies in the aspects of continuous coating production, large-area, high-speed, large-scale production and the like. Since the eighties of the last century, a great deal of research has been conducted on this technology by all iron and steel companies in the world. With the maturity of hot galvanizing and electrogalvanizing technologies, the technology is being regarded as an innovative surface coating technology with unprecedented importance.
In the vacuum coating process, the key point is how to obtain a coating with uniform thickness by changing the heating mode and arranging the nozzles. In the vacuum coating process, the viscosity of the coating has a large relationship with the initial temperature of the steel plate. Different steel grades combine with Zn vapour to form a composite layer, which also has a large relationship with the starting temperature of the deposited steel sheet. In most areas of China, the temperature difference of four seasons is large, the temperature difference of some areas can reach 60 ℃, and the temperature difference of the morning and the evening in the same area can also be more than 20 ℃. Under such a large temperature difference, a large temperature difference also exists in the process of coating the steel plate by depositing the steel plate, under the same deposition condition, the coating layers produced in the morning and at night have large difference, and the coating layers have different viscous forces and also cause large difference in the subsequent use process.
Chinese patent publication No. CN105431564A, published 2016, 3, 23, entitled "a steel sheet provided with a zinc coating", discloses a vacuum coating process and apparatus, the at least one zinc layer being manufactured by a vacuum deposition coating method using sonic vapor jet, wherein the ratio between the pressure inside the zinc spray chamber, P spray, and the pressure inside the deposition chamber, P chamber, is 2 x 103To 5.5X 102In the meantime. Wherein the pressure of the deposition chamber is maintained at 6 x 10-2mbar to 2X 10-1mbar. Further, the distance between the upper part of the slit and the steel plate to be coated is between 20mm and 60 mm. However, in the above technical solutions, it is not clear whether the steel plate needs to be heated during the coating process, and the vacuum degree in the deposition chamber described in the patent is insufficient during the actual coating preparation process.
Chinese patent publication No. CN101855380A, published as 2010, 10/6, entitled "industrial steam generator for depositing an alloy coating on a metal strip", discloses a Zn steam injector comprising a longitudinal slit for the steam outlet, which acts as a sonic neck and extends over the entire substrate width, and a pressure drop member or filter medium of sintered material arranged in the injector on the steam channel immediately before the slit to homogenize the flow rate of the steam flowing out of the injector through the sonic neck. However, the patent does not consider the preheating process and preheating device required by the steel plate before coating, and when the process is carried out in different areas, different viscous forces are inevitably caused in the vapor deposition process in the coating process, so that the deviation of the coating thickness is caused.
Disclosure of Invention
The system for moving heating and coating the Zn layer on the surface of the strip steel has simple structure and convenient operation, can be effectively applied to the strip steel vacuum coating technology, is used for coating the surface of the strip steel to form a uniform coating and improve the quality of the vacuum coated strip steel. The system can preheat and homogenize the strip steel before coating in the vacuum coating process, thereby effectively avoiding the defect of different coating viscosity when the process is applied in different areas, and having good popularization prospect and application value.
In order to achieve the above object, the present invention provides a system for moving heating and coating a Zn layer on a surface of a strip steel, comprising:
a vacuum chamber having a cavity therein;
a non-contact induction heater disposed within the vacuum chamber;
the first spray coating device is arranged in the vacuum chamber and is arranged at the downstream of the non-contact induction heater along the moving direction of the strip steel, and the first spray coating device and the non-contact induction heater are respectively arranged at two sides of the strip steel;
and the cooling roller is arranged in the vacuum chamber and is arranged at the downstream of the first spray coating device along the moving direction of the strip steel.
Further, in the system of the present invention, the inlet end of the vacuum chamber is provided with a first vacuum lock; and/or the outlet end of the vacuum chamber is provided with a second vacuum lock.
In the technical scheme of the invention, the first vacuum lock and the second vacuum lock can not only ensure the vacuum degree in the vacuum chamber, but also assist the strip steel to enter and remove the vacuum chamber.
Further, in the system according to the present invention, the cooling roll is provided to be movable in a direction perpendicular to a direction in which the strip moves so as to be close to or away from the strip.
In the technical scheme, in the system, the cooling roller can be close to or far away from the strip steel, and when the cooling roller is close to the strip steel, the cooling roller can cool the strip steel.
Further, in the system of the present invention, the pressure in the vacuum chamber is 1 × 10-5Pa～5Pa。
Further, in the system of the present invention, the first spray coating device is provided to be movable in a direction in which the strip moves.
Further, in the system of the present invention, the exit velocity of the first spray coating device when spraying the metal vapor is 200m/s to 700 m/s.
Further, the system of the invention further comprises a second spray coating device which is arranged in the vacuum chamber and is arranged at the downstream of the cooling roller along the moving direction of the strip steel, and the second spray coating device and the non-contact induction heater are arranged at the same side of the strip steel.
In the above technical solution, the system of the present invention may further include a second spray coating device, the second spray coating device and the non-contact induction heater are disposed on the same side of the strip steel, that is, the second spray coating device and the first spray coating device are respectively disposed on two sides of the strip steel, the second spray coating device and the first spray coating device have the same function, and the mutual cooperation therebetween may realize the double-sided spray coating of the strip steel.
Accordingly, it is another object of the present invention to provide a method for moving heating and coating a Zn layer on a strip steel surface, which is simple to implement and easy to operate, and which can avoid the disadvantage of different coating viscosity occurring when the process is applied to different areas by preheating and homogenizing the strip steel before coating the strip steel.
In order to achieve the above object, the present invention proposes the above method for moving heating and coating a Zn layer on a strip steel surface, which is implemented by the above system.
Further, in the method of the present invention, the process parameters satisfy at least one of the following:
when the moving speed V of the strip steel is 5-20 m/min, the distance L1 between the central line of the non-contact induction heater and the central line of the first spray coating device is 10-110 cm, the distance H1 between the cooling roller and the strip steel is 5-30 mm, and the power W of the non-contact induction heater is 5-50 KW;
when the moving speed of the strip steel is 21-50 m/min, L1 is 15-110 cm, H1 is 3-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 51-100 m/min, L1 is 20-110 cm, H1 is 3-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 100-150 m/min, L1 is 25-110 cm, H1 is 3-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 151-200 m/min, L1 is 30-110 cm, H1 is 1-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 200-300 m/min, L1 is 30-110 cm, H1 is 0mm, and W is 5-50 KW.
Further, in the method of the present invention, when the system further includes a second spray coating device, a distance L2 between the center line of the first spray coating device and the center line of the second spray coating device is (0.3-2) L1.
Compared with the prior art, the system and the method for moving heating and coating the Zn layer on the surface of the strip steel have the advantages and beneficial effects as follows:
the system for moving heating and coating the Zn layer on the surface of the strip steel has simple structure and convenient operation, can be effectively applied to the strip steel vacuum coating technology, is used for coating the surface of the strip steel to form a uniform coating and improve the quality of the vacuum coated strip steel. The system can preheat and homogenize the strip steel before coating in the vacuum coating process, thereby effectively avoiding the defect of different coating viscosity when the process is applied in different areas, and having good popularization prospect and application value.
In addition, according to the preheating characteristic in the system, the invention combines the vacuum degree in the vacuum cavity and the outlet speed of the spraying coating device when spraying metal steam to determine a new coating process, thereby further improving the coating viscous force and enabling the coating thickness of the strip steel to be more uniform.
Accordingly, the method for moving heating and coating the Zn layer on the surface of the strip steel also has the advantages and beneficial effects.
Drawings
FIG. 1 is a schematic structural diagram of a system for moving heating and coating a Zn layer on a strip steel surface according to an embodiment of the invention.
FIG. 2 is a schematic structural diagram of a system for moving heating and coating a Zn layer on a strip steel surface according to another embodiment of the invention.
Detailed Description
The system and method for moving heating and applying a Zn layer on a strip steel surface according to the present invention will be further explained and illustrated with reference to the following specific examples and the attached drawings, which, however, should not be construed as unduly limiting the technical solution of the present invention.
FIG. 1 is a schematic structural diagram of a system for moving heating and coating a Zn layer on a strip steel surface according to an embodiment of the invention.
As shown in fig. 1, in the present embodiment, the system for moving heating and coating a Zn layer on a strip steel surface according to the present invention may include: a vacuum chamber 4, a non-contact induction heater 5 and a first spray coating device 6. The vacuum chamber 4 is provided with a cavity, the non-contact induction heater 5 and the first spray coating device 6 are arranged in the vacuum chamber 4, the first spray coating device 6 can be arranged at the downstream of the non-contact induction heater 5 along the moving direction of the strip steel 1, and the first spray coating device 6 and the non-contact induction heater 5 are respectively arranged at two sides of the strip steel 1.
In addition, it should be noted that the non-contact induction heater 5 may include a heater 51 and an inductor 52, and the non-contact induction heater 5 may induce and heat the strip 1 entering the vacuum chamber 4. In order to prevent the metal vapor from entering the non-contact induction heater 5 during the spray coating process and affecting the function of the non-contact induction heater 5, the non-contact induction heater 5 needs to have tightness, and in some embodiments, the shell of the non-contact induction heater 5 may be made of a ceramic material, and the cover plate is tightly closed by ceramic bolts.
In addition, it should be noted that, in this embodiment, in order to ensure the effective implementation of the system of the present invention, a first vacuum lock 2 is further provided at the inlet end of the vacuum chamber, and a second vacuum lock 3 is provided at the outlet end of the vacuum chamberThe first vacuum lock 2 and the second vacuum lock 3 can not only ensure the vacuum degree in the cavity of the vacuum chamber 4, but also assist the strip steel 1 to enter and remove the vacuum chamber 4. Accordingly, for better implementation, in the system of the present invention, the pressure in the vacuum chamber 4 can be controlled to be 1 × 10-5Pa-5 Pa.
In the present embodiment, the first spray coating device 6 is provided to be movable in the moving direction of the strip 1, and the first spray coating device 6 can spray Zn vapor to one side of the strip 1 to form a coating layer. The first spray coating device 6 is a closed thermal chamber, which may include: an outer insulation panel 61, a resistance heating wire 62, a nozzle 63 and an air supply pipe 64. The heat insulation plate 61 covers the resistance heating wire 62, and the nozzle 63 can be connected with the air supply pipe 64 and inserted into the heating cavity surrounded by the resistance heating wire 62.
In order to ensure the quality of the strip steel coating, the outlet speed of the first spraying coating device 6 when spraying the metal steam is not too low, and the outlet speed is not too high in consideration of the production cost, in the system of the invention, the outlet speed of the first spraying coating device 6 when spraying the metal steam can be controlled between 200m/s and 700 m/s.
In the embodiment, the system for moving heating and coating the Zn layer on the surface of the strip steel can realize the single-side spray galvanizing of the strip steel 1, the moving speed V of the strip steel 1 is 50m/min, the width of the strip steel is 1000mm, after cleaning and drying, the strip steel can enter a vacuum chamber from a first vacuum lock 2, and the vacuum degree of the vacuum chamber 4 is controlled to be kept at 1.0 multiplied by 10-2Pa, the first spraying film coating device 6 and the non-contact type induction heater 5 are respectively arranged at two sides of the strip steel 1. The distance L1 between the central line of the non-contact induction heater 5 and the central line of the first spray coating device 6 is 50cm, the heating power of the non-contact induction heater 5 is 20KW, and the metal steam spray outlet speed of the first spray coating device 6 is controlled to be 300 m/s. The strip steel 1 is sprayed with Zn steam after passing through the first spray coating device 6, thereby forming a coating, the strip steel with the coating can be moved out of the vacuum chamber 4 by the second vacuum lock 3, and the single-side spray coating of the strip steel 1 is finished.
FIG. 2 is a schematic structural diagram of a system for moving heating and coating a Zn layer on a strip steel surface according to another embodiment of the invention.
As shown in fig. 2, and referring to fig. 1, in the present embodiment, the system for moving heating and coating a Zn layer on a strip steel surface according to the present invention includes: a vacuum chamber 4, a non-contact induction heater 5, a first spray coating device 6, a second spray coating device 7 and a cooling roller 8. In contrast to the example shown in fig. 1, in this embodiment, a second spray coating device 7 and a chill roll 8 are also added to the system. Wherein, the cooling roller 8 is arranged in the vacuum chamber 4 and is arranged at the downstream of the first spray coating device 6 along the moving direction of the strip steel 1; a second spray coating device 7 is also provided in the vacuum chamber 4 and is identical in structure and function to the first spray coating device 6.
It should be noted that the second spray coating device 7 is arranged at the downstream of the cooling roller 8 along the moving direction of the steel strip 1, and the second spray coating device 7 is arranged at the same side of the steel strip 1 with the non-contact induction heater 5, in the invention, the distance L2 between the central line of the first spray coating device and the central line of the second spray coating device is equal to (0.3-2) L1. Therefore, the first spray coating device 6 and the second spray coating device 7 are respectively arranged at two sides of the strip steel 1 and can spray coating films to the strip steel 1, and the first spray coating device 6 and the second spray coating device 7 are matched with each other to realize the spray coating of two sides of the strip steel 1.
It should be noted that, in the present embodiment, the cooling rolls 8 are movable in a direction perpendicular to the moving direction of the strip 1 so as to be close to or away from the strip 1, and when the cooling rolls 8 are close to the strip 1, they can cool the strip 1.
In the invention, when the moving speed V of the strip steel is 5-20 m/min, the distance L1 between the central line of the non-contact induction heater 5 and the central line of the first spray coating device 6 is 10-110 cm, the distance H1 between the cooling roller 8 and the strip steel 1 is 5-30 mm, and the power W of the non-contact induction heater 5 is 5-50 KW;
when the moving speed of the strip steel is 21-50 m/min, L1 is 15-110 cm, H1 is 3-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 51-100 m/min, L1 is 20-110 cm, H1 is 3-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 100-150 m/min, L1 is 25-110 cm, H1 is 3-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 151-200 m/min, L1 is 30-110 cm, H1 is 1-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 200-300 m/min, L1 is 30-110 cm, H1 is 0mm, and W is 5-50 KW.
In the embodiment, the system for moving heating and coating the Zn layer on the surface of the strip steel can realize double-sided spray galvanizing of the strip steel 1, the moving speed V of the strip steel 1 is 120m/min, the width of the strip steel is 1200mm, after cleaning and drying, the strip steel can enter the vacuum chamber 4 from the first vacuum lock 2, and the vacuum degree of the vacuum chamber 4 is controlled to be maintained at 3.0 x 10-2Pa. The first spray coating device 6 and the non-contact induction heater 5 are respectively arranged at two sides of the strip steel 1, the first spray coating device 7 is arranged at the downstream of the non-contact induction heater 5 along the moving direction of the strip steel, the distance L1 between the central line of the non-contact induction heater 5 and the central line of the first spray coating device 6 is 70cm, the second spray coating device 7 and the non-contact induction heater 5 are arranged at the same side, the distance L2 between the central line of the first spray coating device 6 and the central line of the second spray coating device 7 is 90cm, the distance H1 between the cooling roller 8 and the strip steel 1 is 5mm, the heating power of the non-contact induction heater 5 is 30KW, and the outlet speeds of metal steam spraying of the first spray coating device 6 and the second spray coating device 7 are both controlled to be 350 m/s.
The strip steel 1 is heated after passing through the non-contact induction heater 5, is sprayed with Zn steam after passing through the first spray coating device 6 to form a single-side coating, the temperature of the strip steel 1 is raised at the moment, the strip steel is cooled by the cooling roller 8 when passing through the cooling roller 8, the strip steel 1 is sprayed with Zn steam by the second spray coating device 7 when passing through the second spray coating device 7 to form a coating on the other side of the strip steel 1, the coated strip steel can be moved out of the vacuum chamber 4 by the second vacuum lock 3, and the double-side spray zinc coating of the strip steel is completed.
In summary, the system for moving heating and coating the Zn layer on the surface of the strip steel has simple structure and convenient operation, can be effectively applied to the strip steel vacuum coating technology, is used for coating the surface of the strip steel to form a uniform coating and improves the quality of the vacuum coated strip steel. The system can preheat and homogenize the strip steel before coating in the vacuum coating process, thereby effectively avoiding the defects of different coating viscosity when the process is applied to different areas. In addition, according to the preheating characteristic, the invention determines a new coating process by combining the vacuum degree in the vacuum cavity and the outlet speed of the spraying coating device when spraying metal steam, thereby effectively improving the coating viscous force of the strip steel and enabling the coating thickness of the strip steel to be more uniform.
Accordingly, the method of moving heating and coating the Zn layer on the surface of the strip steel of the present invention also has the advantages and beneficial effects.
It should be noted that the prior art in the protection scope of the present invention is not limited to the examples given in the present application, and all the prior art which is not inconsistent with the technical scheme of the present invention, including but not limited to the prior patent documents, the prior publications and the like, can be included in the protection scope of the present invention.
In addition, the combination of the features in the present application is not limited to the combination described in the claims of the present application or the combination described in the embodiments, and all the features described in the present application may be freely combined or combined in any manner unless contradictory to each other.
It should also be noted that the above-mentioned embodiments are only specific embodiments of the present invention. It is apparent that the present invention is not limited to the above embodiments and similar changes or modifications can be easily made by those skilled in the art from the disclosure of the present invention and shall fall within the scope of the present invention.
Claims (10)
1. A system for moving heating and coating Zn layer on the surface of strip steel is characterized in that:
a vacuum chamber having a cavity therein;
a non-contact induction heater disposed in the vacuum chamber
The first spray coating device is arranged in the vacuum chamber and is arranged at the downstream of the non-contact induction heater along the moving direction of the strip steel, and the first spray coating device and the non-contact induction heater are respectively arranged at two sides of the strip steel;
and the cooling roller is arranged in the vacuum chamber and is arranged at the downstream of the first spray coating device along the moving direction of the strip steel.
2. The system of claim 1, wherein the inlet end of the vacuum chamber is provided with a first vacuum lock; and/or the outlet end of the vacuum chamber is provided with a second vacuum lock.
3. The system of claim 1, wherein the cooling roll is disposed to be movable in a direction perpendicular to a moving direction of the strip to be close to or far from the strip.
4. The system of claim 1, wherein the pressure in the vacuum chamber is 1 x 10-5Pa～5Pa。
5. The system of claim 1, wherein the first spray coating device is configured to be movable in a direction in which the strip moves.
6. The system of claim 1, wherein the first spray coating device sprays the metal vapor at an exit velocity of 200m/s to 700 m/s.
7. The system of any one of claims 1 to 6, further comprising a second spray coating device disposed in the vacuum chamber downstream of the chill roll in the direction of strip travel, the second spray coating device being disposed on the same side of the strip as the non-contact induction heater.
8. A method for mobile heating and coating of a Zn layer on a strip steel surface, characterized in that it is carried out by a system according to any one of claims 1 to 7.
9. The method of claim 8, wherein the process parameter satisfies at least one of:
when the moving speed V of the strip steel is 5-20 m/min, the distance L1 between the central line of the non-contact induction heater and the central line of the first spray coating device is 10-110 cm, the distance H1 between the cooling roller and the strip steel is 5-30 mm, and the power W of the non-contact induction heater is 5-50 KW;
when the moving speed of the strip steel is 21-50 m/min, L1 is 15-110 cm, H1 is 3-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 51-100 m/min, L1 is 20-110 cm, H1 is 3-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 100-150 m/min, L1 is 25-110 cm, H1 is 3-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 151-200 m/min, L1 is 30-110 cm, H1 is 1-30 mm, and W is 5-50 KW;
when the moving speed of the strip steel is 200-300 m/min, L1 is 30-110 cm, H1 is 0mm, and W is 5-50 KW.
10. The method of claim 9, wherein when the system further comprises a second spray coating device, a distance L2 between the centerline of the first spray coating device and the centerline of the second spray coating device is (0.3-2) L1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488213.9A CN113755797A (en) | 2020-06-02 | 2020-06-02 | System and method for moving heating and coating Zn layer on surface of strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010488213.9A CN113755797A (en) | 2020-06-02 | 2020-06-02 | System and method for moving heating and coating Zn layer on surface of strip steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113755797A true CN113755797A (en) | 2021-12-07 |
Family
ID=78782705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010488213.9A Pending CN113755797A (en) | 2020-06-02 | 2020-06-02 | System and method for moving heating and coating Zn layer on surface of strip steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113755797A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE822858A (en) * | 1974-02-19 | 1975-04-01 | THERMAL TREATMENT AND GALVANIZATION SYSTEM | |
| DE2446250A1 (en) * | 1973-09-28 | 1975-04-03 | Jones & Laughlin Steel Corp | PROCESS FOR THE PRODUCTION OF A FASTENING ORGANIC COATING ON A METALLIC SUBSTRATE |
| US4374873A (en) * | 1979-11-07 | 1983-02-22 | Phenix Works Societe Anonyme | Process and installation for coating a metallic strip continuously with a covering layer |
| CN85107585A (en) * | 1984-03-19 | 1987-05-06 | 三菱重工业株式会社 | The method and apparatus that is used for vaccuum deposition coating |
| JPH08218160A (en) * | 1995-02-08 | 1996-08-27 | Nippon Steel Corp | Production of high corrosion resistant zinc-aluminum alloy plated steel sheet by double layer spray plating |
| KR20020020113A (en) * | 2000-09-08 | 2002-03-14 | 이구택 | Manufacturing method for regular spangle hot dip galvanizing and the system thereof |
| JP2004307904A (en) * | 2003-04-03 | 2004-11-04 | Nippon Steel Corp | Steel strip cooling unit |
| DE102005012296A1 (en) * | 2005-03-17 | 2006-09-21 | Sms Demag Ag | Method and device for descaling a metal strip |
| CN101333642A (en) * | 2007-06-29 | 2008-12-31 | 宝山钢铁股份有限公司 | Band steel filming method and system thereof |
| CN101376961A (en) * | 2007-08-31 | 2009-03-04 | 宝山钢铁股份有限公司 | Method for controlling coating alloying homogeneity |
| KR20090068039A (en) * | 2007-12-21 | 2009-06-25 | 재단법인 포항산업과학연구원 | Apparatus and method for continuous metal coating of strip |
| CN101565816A (en) * | 2008-04-25 | 2009-10-28 | 宝山钢铁股份有限公司 | Process for performing steel-strip film coating by using pulse laser evaporation ablation in vacuum |
| KR101711858B1 (en) * | 2015-12-24 | 2017-03-03 | 주식회사 포스코 | Continuous galvanizing apparatus and method |
-
2020
- 2020-06-02 CN CN202010488213.9A patent/CN113755797A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2446250A1 (en) * | 1973-09-28 | 1975-04-03 | Jones & Laughlin Steel Corp | PROCESS FOR THE PRODUCTION OF A FASTENING ORGANIC COATING ON A METALLIC SUBSTRATE |
| BE822858A (en) * | 1974-02-19 | 1975-04-01 | THERMAL TREATMENT AND GALVANIZATION SYSTEM | |
| US4374873A (en) * | 1979-11-07 | 1983-02-22 | Phenix Works Societe Anonyme | Process and installation for coating a metallic strip continuously with a covering layer |
| CN85107585A (en) * | 1984-03-19 | 1987-05-06 | 三菱重工业株式会社 | The method and apparatus that is used for vaccuum deposition coating |
| JPH08218160A (en) * | 1995-02-08 | 1996-08-27 | Nippon Steel Corp | Production of high corrosion resistant zinc-aluminum alloy plated steel sheet by double layer spray plating |
| KR20020020113A (en) * | 2000-09-08 | 2002-03-14 | 이구택 | Manufacturing method for regular spangle hot dip galvanizing and the system thereof |
| JP2004307904A (en) * | 2003-04-03 | 2004-11-04 | Nippon Steel Corp | Steel strip cooling unit |
| DE102005012296A1 (en) * | 2005-03-17 | 2006-09-21 | Sms Demag Ag | Method and device for descaling a metal strip |
| CN101333642A (en) * | 2007-06-29 | 2008-12-31 | 宝山钢铁股份有限公司 | Band steel filming method and system thereof |
| CN101376961A (en) * | 2007-08-31 | 2009-03-04 | 宝山钢铁股份有限公司 | Method for controlling coating alloying homogeneity |
| KR20090068039A (en) * | 2007-12-21 | 2009-06-25 | 재단법인 포항산업과학연구원 | Apparatus and method for continuous metal coating of strip |
| CN101565816A (en) * | 2008-04-25 | 2009-10-28 | 宝山钢铁股份有限公司 | Process for performing steel-strip film coating by using pulse laser evaporation ablation in vacuum |
| KR101711858B1 (en) * | 2015-12-24 | 2017-03-03 | 주식회사 포스코 | Continuous galvanizing apparatus and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2100485B1 (en) | Apparatus and method for plasma arc coating | |
| JP7299927B2 (en) | Vacuum deposition equipment and method for substrate coating | |
| WO2018001179A1 (en) | Method and device for producing film-coated metal plate | |
| CN113755797A (en) | System and method for moving heating and coating Zn layer on surface of strip steel | |
| CN110695327B (en) | Jet rolling preparation method of aluminum alloy composite plate strip | |
| CN105904827B (en) | The hot-dip metal plated plate laminating adhesive production line of one-step method | |
| TW201026624A (en) | Glass coating process and apparatus | |
| CN207997495U (en) | A kind of solution curtain coating deposit removing mechanism | |
| JPS63274748A (en) | Nozzle for molten metal coating device | |
| CN112553577A (en) | Vacuum coating device for improving vacuum coating yield | |
| CN115449751B (en) | Evaporation source mechanism for ultrathin film coating, coating equipment and coating method | |
| CN112575294B (en) | Vacuum coating device with double partition plates | |
| CN112553578B (en) | Vacuum coating device with flow-inhibiting nozzle | |
| CN112553579B (en) | Vacuum coating device with filtering and homogenizing nozzle | |
| CN112575308B (en) | Vacuum coating device capable of efficiently coating strip steel under vacuum | |
| CN112708855A (en) | Vacuum coating device with diversion type vacuum coating nozzle | |
| CN205853538U (en) | One-step method hot-dip metal plated sheet material laminating adhesive production line | |
| CN205853536U (en) | A kind of metal sheet hot coating surface laminating adhesive unit | |
| CN113957391B (en) | Vacuum coating device adopting core rod heating structure to uniformly distribute metal vapor | |
| CN113957390B (en) | Vacuum coating device with air cushion buffer cavity | |
| CN110004411B (en) | Alloy coating method | |
| JPH05311388A (en) | Method and device for continuous hot-dip metal coating of metallic sheet | |
| CN109898068B (en) | Alloy coating device | |
| CN108505002B (en) | Preparation method of region surface plasma enhanced ultrathin composite absorption film | |
| CN105922710B (en) | A kind of metal sheet hot coating surface laminating adhesive unit |
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 |