CN215050636U - Continuous nano composite hot galvanizing device for strip and strip production line - Google Patents
Continuous nano composite hot galvanizing device for strip and strip production line Download PDFInfo
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- CN215050636U CN215050636U CN202121052755.8U CN202121052755U CN215050636U CN 215050636 U CN215050636 U CN 215050636U CN 202121052755 U CN202121052755 U CN 202121052755U CN 215050636 U CN215050636 U CN 215050636U
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Abstract
The utility model discloses a continuous type nanometer composite hot-galvanize device and strip production line for strip, the device includes real empty room, evaporation heating device, spray and scribble plating room and steam conveying pipeline, wherein, be provided with the coating in the real empty room, real empty room is connected with the vacuum pump, evaporation heating device is used for forming target steam to the coating heating in the real empty room, evaporation heating device sets up in the real empty room, spray and scribble the both sides that the plating room distributes at the strip, and every sprays and scribbles the plating room and all be provided with the slit that is used for spraying the gaseous evaporating of nanometer granule to the strip, steam conveying pipeline sets up in real empty room and sprays and scribbles between the plating room, supply the indoor gaseous evaporating of nanometer granule in vacuum to get into to spray and scribble the plating room. The utility model discloses in, carry out continuous processing to the strip after the hot-galvanize, form the compound hot-galvanize cladding material of nanometer, not only be applicable to the product of this kind of jumbo size specification of strip, and the compound hot-galvanize cladding material of nanometer that forms can promote performances such as wearability, the resistance to scratch of strip.
Description
Technical Field
The utility model relates to a strip preparation field, concretely relates to continuous type nanometer composite hot-galvanize device and strip production line for strip.
Background
It is necessary to perform a corrosion prevention treatment on the surface of the strip material to improve the service life of the product. At present, the surface of a steel plate strip is usually subjected to a continuous hot galvanizing process for continuously passing the strip through a molten zinc pot to form a zinc or zinc alloy coating, but hot galvanized products prepared by the method are low in coating hardness and easy to scratch the surface in the processes of transportation, processing and use, so that the protective performance and the surface appearance quality of the coating are reduced.
The nano composite coating is formed by dispersing and compounding nano particles into the coating, and the hardness of the coating can be effectively improved through the strengthening effect of the nano particles. However, due to the agglomeration effect of the nanoparticles, an ideal method for effectively dispersing the nanoparticles, particularly a method for effectively dispersing large-batch nanoparticles, does not exist at present, so that the prepared nano composite plating layer product is only limited to small size and small batch size.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a continuous nanocomposite coating apparatus for strip and a strip production line, which can form a nanocomposite coating on a strip of large size, such as a strip, and improve the surface properties, such as wear resistance and scratch resistance, of the strip.
In order to achieve the above objects and other related objects, the technical solution of the present invention is as follows:
a continuous nanocomposite hot dip galvanizing apparatus for strip material, comprising:
the vacuum chamber is internally provided with a plating material and is connected with a vacuum pump;
the evaporation heating device is used for heating the coating materials in the vacuum chamber to form target material steam cake, and the evaporation heating device is arranged in the vacuum chamber;
the spraying coating chambers are distributed on two sides of the strip material, and each spraying coating chamber is provided with a slit for spraying evaporation gas of nano particles to the strip material;
and the steam conveying pipeline is arranged between the vacuum chamber and the jet coating chamber and is used for allowing the nano-particle evaporation gas in the vacuum chamber to enter the jet coating chamber.
Optionally, the continuous nano-composite hot dip galvanizing device further includes a condensed gas supply channel and a reaction gas supply channel, the condensed gas supply channel is configured to supply an inert condensed gas to the spray coating chamber, and the reaction gas supply channel is configured to supply a reaction gas to the spray coating chamber;
the condensed gas supply channel and the reaction gas supply channel are directly connected with the steam conveying pipeline, so that the inert condensed gas provided by the condensed gas supply channel or the reaction gas provided by the reaction gas supply channel reacts with the target steam generated in the vacuum chamber to generate nano-particle steam, and the nano-particle steam is conveyed into the spray coating chamber along with the steam conveying pipeline; or the condensed gas supply channel or the reaction gas supply channel is connected with the vacuum chamber, so that inert condensed gas or reaction gas firstly enters the vacuum chamber to react with target steam generated in the vacuum chamber to generate nano-particle steam and then enters the spray coating chamber.
Optionally, a condensed gas regulating valve is arranged on the condensed gas supply channel, and a reaction gas regulating valve is arranged on the reaction gas supply channel.
Optionally, a flow regulating valve for regulating the nanoparticle evaporation gas is arranged on the steam delivery pipeline.
Optionally, the length direction of the slit is consistent with the width direction of the strip, and the slit width of the slit is adjustable;
wherein, the spraying is scribbled and is plated the room and have and be used for forming the swash plate and the lower swash plate of slit, just form the water conservancy diversion contained angle between swash plate and the lower swash plate, spraying is scribbled and is plated indoor being provided with and is used for adjusting the first structure of adjusting of the inclination of swash plate and being used for adjusting the structure is adjusted to the second of the inclination of lower swash plate, makes the seam width of slit is adjustable.
Optionally, the strip steel spraying device further comprises a movable plate, two spraying coating chambers are arranged on two sides of the strip steel, the movable plate is correspondingly arranged at two ends of each spraying coating chamber, the movable plate is perpendicular to the strip steel, the movable plates are distributed on two sides of the strip steel in the width direction, and the movable plates are adjustable to adapt to strip steel with different width specifications; wherein, the adjusting direction of the moving plate is consistent with the width direction of the strip. Optionally, the plating material includes, but is not limited to, metals, metal oxides, non-metal oxides
The utility model also provides a strip production line, including hot-galvanize device, air knife and the cooling bellows that set gradually, this production line still includes any one of the aforesaid continuous type nanometer composite hot-galvanize device, continuous type nanometer composite hot-galvanize device adds the air knife with between the cooling bellows.
The utility model discloses in, the compound hot-galvanize device of nanometer of strip can carry out continuous processing to the hot-galvanize strip after the hot-galvanize, forms compound hot-galvanize cladding material of nanometer, not only is applicable to the product of this kind of jumbo size specification of strip, and the compound hot-galvanize cladding material of nanometer that forms can promote performances such as wearability, the resistance to scratching nature of strip.
Drawings
Fig. 1 is an exemplary schematic view of a continuous nanocomposite hot dip galvanizing apparatus according to the present invention;
fig. 2 is another exemplary schematic diagram of a continuous nanocomposite hot dip galvanizing apparatus according to the present invention;
FIG. 3 is a diagram of the position of the spray coating chamber in relation to the strip;
FIG. 4 is a view of the spray coating chamber in relation to the strip in the top view of FIG. 3;
FIG. 5 is a schematic diagram of an exemplary configuration of a production line of the present invention;
description of reference numerals:
a steel strip A;
a vacuum chamber 1, an evaporation heating device 2, a reaction gas supply channel 3, a condensed gas regulating valve 31, a condensed gas supply channel 4, a reaction gas regulating valve 41, a vacuum pump 5, a flow regulating valve 6, a steam conveying pipeline 7, a spray coating chamber 8, a crack 801, a vertical plate 81, an upper inclined plate 82, a lower inclined plate 83 and an adjusting plate 9;
a continuous nano composite hot galvanizing device 100, an air knife 200 and a cooling bellows 300.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
For convenience of understanding, the continuous nano-composite hot dip galvanizing apparatus according to each of the following embodiments is applied to a nano-composite hot dip galvanizing line, the line further includes an existing hot dip galvanizing apparatus (not shown) for forming a hot dip galvanized coating on the surface of the strip a, and any one of the continuous nano-composite hot dip galvanizing apparatuses according to each of the following embodiments is added after the hot dip galvanizing apparatus, so that the nano-composite hot dip galvanized coating is formed on the surface of the strip on which the hot dip galvanized coating is formed, thereby improving the performance of the strip. The hot dip galvanizing apparatus is generally a molten zinc pot.
In some embodiments, referring to fig. 1 to 4, the continuous nano composite hot dip galvanizing apparatus includes a vacuum chamber 1, an evaporation heating apparatus 2, a spray coating chamber 8 and a steam conveying pipeline 7, wherein a coating material is disposed in the vacuum chamber 1, the vacuum chamber 1 is connected with a vacuum pump 5, the evaporation heating apparatus 2 is used for heating the coating material in the vacuum chamber 1 to form a target material steam, the evaporation heating apparatus 2 is disposed in the vacuum chamber 1, the spray coating chambers 8 are distributed on two sides of a strip material a, and each spray coating chamber 8 is provided with a slit 801 for spraying a nanoparticle evaporation gas to the strip material; the steam conveying pipeline 7 is arranged between the vacuum chamber 1 and the spraying coating chamber 8, and is used for allowing the nano-particle evaporation gas in the vacuum chamber 1 to enter the spraying coating chamber 8. Here, the hot dip galvanized strip entering the spray coating chamber 8 is a hot dip galvanized strip which has been treated by a hot dip galvanizing apparatus and a hot dip galvanized coating is formed on the surface, and the evaporation heating apparatus 2 may be, but is not limited to, an electron beam heating apparatus.
During production, the coating material in the vacuum chamber 1 forms target material steam under the action of the evaporation heating device 2, and forms nano-particle evaporation gas under the action of reaction gas and condensation gas provided by the reaction gas supply channel 3 or the condensation gas supply channel 4, and continuously enters the jet coating chamber 8 through the steam conveying pipeline 7, and nano-vapor particles are ejected from a slit of the jet coating chamber 8 and are ejected on the surface of the strip A subjected to hot galvanizing treatment to form a nano-composite hot galvanizing coating. In fig. 1, the arrow indicates the feeding direction of the strip, that is, the length direction of the slit is consistent with the width direction of the strip, but the positional relationship between the vacuum chamber 1 and the strip and the spray coating chamber 8 in fig. 1 is not real, and in the actual implementation process, the vacuum chamber 1 and the spray coating chamber 8 are connected through the vacuum conveying pipeline 7. The continuous nano composite hot galvanizing device is not only suitable for products with large size and specification such as strips, but also can improve the performances such as wear resistance, scratch resistance and the like of the strips by the formed nano composite hot galvanizing coating.
In the actual implementation process, the continuous nano composite hot galvanizing device can be used independently, but after the continuous nano composite hot galvanizing device is additionally arranged on the hot galvanizing device in the existing production line, the performance of the strip can be improved, the strip does not need to be transferred, the production cost can be reduced, and the production efficiency can be improved.
In the existing strip production line, an air knife for controlling the thickness of a zinc coating and a cooling air box for cooling the zinc coating of the strip are usually arranged, and a hot galvanizing device, the air knife and the cooling air box are arranged in sequence, in some embodiments, referring to fig. 5, the continuous nano composite hot galvanizing device 100 is additionally arranged between the air knife 200 and the cooling air box 300, so that after the hot galvanizing coating is formed, the air knife 200 controls the thickness specification of the coating on the surface of the strip steel, and the air cooling is carried out after the spray coating, which is favorable for the rapid solidification of the coating, and the mode of directly additionally arranging the continuous nano composite hot galvanizing device on the existing air knife 200 and the cooling air box 300 is more favorable for improving the performance of the strip.
In some embodiments, the plating material is α -Al2O3, referring to fig. 1 and 2, the continuous nano composite hot galvanizing apparatus further comprises a reaction gas supply channel 3, and the reaction gas supplied from the reaction gas supply channel 3 reacts with the target material vapor generated by the vacuum chamber to form nano α -Al2O3 particle vapor; in fig. 2, the reaction gas supply channel 3 is directly connected to the vapor delivery pipe 7, so that the reaction gas supplied from the reaction gas supply channel 3 flows along the vapor delivery pipe 7 and reacts with the target vapor generated in the vacuum chamber to form nano α -Al2O3 particle vapor, and then the nano α -Al2O3 particle vapor is delivered into the spray coating chamber 8. In practical implementation, referring to fig. 1, the reaction gas supply channel 3 may also be connected to the vacuum chamber 1, so that the reaction gas first enters the vacuum chamber 1 to form the evaporation gas of the nano α -Al2O3 particles, and then enters the spray coating chamber 8. In the practical implementation process, the reaction gas can adopt metal, metal oxide and non-metal oxide according to the requirements of producing different types of nano particles, for example, O can be selected2Or CH4Or NH3And the like.
In some embodiments, referring to fig. 1 and fig. 2, the continuous nanocomposite hot dip galvanizing device further comprises a condensation gas supply channel 4, wherein the reaction gas supplied by the condensation gas supply channel 4 condenses target material vapor generated by the vacuum chamber to form nanoparticle vapor; in fig. 2, the condensed gas supply channel 4 is directly connected to the vapor delivery line 7, so that the inert condensed gas supplied from the inert condensed gas supply channel 4 is fed into the spray coating chamber 8 along the vapor delivery line 7 and reacts with the target vapor generated in the vacuum chamber to form nanoparticle vapor therein. In practical implementation, referring to fig. 1, the condensed gas supply channel 4 may also be connected to the vacuum chamber 1, so that the inert condensed gas first enters the vacuum chamber 1 to form the nanoparticle evaporation gas, and then enters the spray coating chamber 8. In practice, inert coolingAr, He and N can be used as the condensed gas2And the like.
In some embodiments, referring to fig. 1 and 2, the condensation gas supply channel 4 is provided with a condensation gas regulating valve 31, and the reaction gas supply channel 3 is provided with a reaction gas regulating valve 41. In the actual production process, the condensing gas regulating valve 31 can be regulated according to the injection pressure requirement of the inert condensing gas, so that the injection pressure of the inert condensing gas reaches the target pressure.
In some embodiments, referring to fig. 1 and 2, the vapor delivery pipe 7 is provided with a flow regulating valve 6 for regulating the evaporation gas of the nanoparticles, and in practical implementation, the flow regulating valve 6 can be regulated according to the width specification of the strip and other factors, so as to control the gas pressure in the spray coating chamber 8.
In some embodiments, referring to fig. 1 to 4 in combination, the length direction of the slit 801 is consistent with the width direction of the strip, and the slit width of the slit is adjustable, so that the width of the slit can be adjusted according to requirements during spraying, the spraying flow rate is changed, and parameters such as the nano-composite amount of the finally formed nano-composite hot-dip galvanized coating are controlled.
Specifically, referring to fig. 4, the spray coating chamber 8 has an upper inclined plate 82 and a lower inclined plate 83 for forming the slit, and a flow guiding included angle is formed between the upper inclined plate 82 and the lower inclined plate 83, and a first adjusting structure (not shown) for adjusting an inclination angle of the upper inclined plate and a second adjusting structure (not shown) for adjusting an inclination angle of the lower inclined plate are provided in the spray coating chamber, so that the slit width of the slit 801 is adjustable. Actually, the change of the inclination angles of the upper inclined plate and the lower inclined plate not only can change the width of the slit, but also can change the spraying angle, and is more favorable for accurately controlling the quality of the finally formed nano composite hot-dip galvanized coating.
For example, referring to fig. 3 and 4 in combination, the spray coating chamber may be set to be triangular prism-shaped, the spray coating chamber is surrounded by a vertical plate 81, an upper inclined plate 82 and a lower inclined plate 83, the steam delivery pipeline 7 is connected with the vertical plate 81, the upper inclined plate 82 and the lower inclined plate 83 are respectively hinged to the upper end and the lower end of the vertical plate 81, a first hydraulic cylinder (not shown) is arranged between the vertical plate and the upper inclined plate, two ends of the first hydraulic cylinder are respectively hinged to the vertical plate and the upper inclined plate, a second hydraulic cylinder (not shown) is arranged between the vertical plate and the lower inclined plate, and two ends of the second hydraulic cylinder are respectively hinged to the vertical plate and the lower inclined plate, so that the first hydraulic cylinder and the second hydraulic cylinder are respectively controlled to extend and contract to adjust the inclination angles of the upper inclined plate and the lower inclined plate.
In some embodiments, referring to fig. 3, two spray coating chambers are arranged on two sides of the strip, two ends of each spray coating chamber are correspondingly provided with a moving plate 9 perpendicular to the feeding direction of the strip, the moving plates 9 are perpendicular to the strip, and the moving plates 9 are distributed on two sides of the width direction of the strip and are adjustable to adapt to strip steels with different width specifications; wherein, the adjusting direction of the moving plate is consistent with the width direction of the strip.
At this time, the position of the moving plate along the width direction of the strip can be adjusted, so that the whole space is adapted to the width of the strip, and the moving plate can be suitable for strips with different width specifications.
When the production line is used for production, hot galvanizing, coating nano-composite treatment and cooling treatment are sequentially carried out on the strip, after the hot galvanizing is carried out on the surface of the strip, the strip is processed by any one of the continuous nano-composite hot galvanizing devices after the cooling treatment, and the nano-particle composite hot galvanizing coating is formed on the surface of the strip.
In some embodiments, the feeding speed of the strip is in the range of 100-140m/min, and during the processing by the continuous nano-composite hot galvanizing device:
maintaining a vacuum degree in the vacuum chamber 1 of 0.1Kpa or more;
adjusting the gas pressure of the feed gas in the condensed gas supply passage 4 and maintaining the gas pressure of the feed gas in the range of 0.15 to 0.25 Kpa;
adjusting the air pressure of the spray coating chamber 8 and keeping the air pressure in the spray coating chamber 8 within the range of 2.5-3.5 Kpa;
the volume of the nano particles in the composite coating formed on the surface of the strip is 5-60%, the surface quality of the strip is good, and the surface hardness is greatly improved.
For example, in one embodiment, the feeding speed of the strip is 120m/min, the vacuum degree in the vacuum chamber 1 is maintained at 0.1Kpa, the inert condensing gas Ar is fed into the vacuum chamber 1 through the condensing gas supply channel 4 at a feeding pressure of 0.2Kpa, the inert condensing gas reacts with the target steam to form nano-particle steam, and then the nano-particle steam enters the spray coating chamber 8, the air pressure in the spray coating chamber 8 is maintained at 3Kpa, finally, the volume ratio of the formed nano-particles in the composite coating layer is in the range of 5-60%, the surface hardness of the conventional hot dip galvanized strip is only 55Hv, and at this time, the surface hardness of the strip with the nano-particle composite coating layer can reach 203 Hv.
Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A continuous nano composite hot galvanizing device for a strip is characterized by comprising:
the vacuum chamber is internally provided with a plating material and is connected with a vacuum pump;
the evaporation heating device is used for heating the coating materials in the vacuum chamber to form target material steam, and the evaporation heating device is arranged in the vacuum chamber;
the spraying coating chambers are distributed on two sides of the strip material, and each spraying coating chamber is provided with a slit for spraying evaporation gas of nano particles to the strip material;
and the steam conveying pipeline is arranged between the vacuum chamber and the jet coating chamber and is used for allowing the nano-particle evaporation gas in the vacuum chamber to enter the jet coating chamber.
2. The continuous nanocomposite hot dip galvanizing apparatus for strip according to claim 1, further comprising:
a condensed gas supply channel for supplying an inert condensed gas to the vapor delivery line or the vacuum chamber, and a reaction gas supply channel for supplying a reaction gas to the vapor delivery line or the vacuum chamber;
the condensed gas supply channel and the reaction gas supply channel are directly connected with the steam conveying pipeline, so that the inert condensed gas provided by the condensed gas supply channel or the reaction gas provided by the reaction gas supply channel reacts with the target steam generated in the vacuum chamber to generate nano-particle steam, and the nano-particle steam is conveyed into the spray coating chamber along with the steam conveying pipeline; or the condensed gas supply channel or the reaction gas supply channel is connected with the vacuum chamber, so that inert condensed gas or reaction gas firstly enters the vacuum chamber to react with target material steam generated in the vacuum chamber to generate nano-particle steam and then enters the spray coating chamber.
3. The continuous nanocomposite hot dip galvanizing apparatus for strip according to claim 2, characterized in that: and a condensed gas regulating valve is arranged on the condensed gas supply channel, and a reaction gas regulating valve is arranged on the reaction gas supply channel.
4. The continuous nanocomposite hot dip galvanizing apparatus for strip according to claim 1, characterized in that: and a flow regulating valve for regulating the nano-particle evaporation gas is arranged on the steam conveying pipeline.
5. The continuous nanocomposite hot dip galvanizing apparatus for strip according to claim 1, characterized in that: the length direction of the slit is consistent with the width direction of the strip, and the slit width of the slit is adjustable;
wherein, the spraying is scribbled and is plated the room and have and be used for forming the swash plate and the lower swash plate of slit, just form the water conservancy diversion contained angle between swash plate and the lower swash plate, spraying is scribbled and is plated indoor being provided with and is used for adjusting the first structure of adjusting of the inclination of swash plate and being used for adjusting the second of the inclination of lower swash plate is adjusted the structure.
6. The continuous nanocomposite hot dip galvanizing apparatus for strip according to claim 5, characterized in that: two spraying coating chambers are arranged on two sides of the strip, two ends of each spraying coating chamber are correspondingly provided with a movable plate for adapting to the width of the strip steel, the movable plates are perpendicular to the strip steel, the movable plates are distributed on two sides of the strip steel in the width direction, and the movable plates are adjustable; wherein, the adjusting direction of the moving plate is consistent with the width direction of the strip.
7. The continuous nanocomposite hot dip galvanizing apparatus for strip according to claim 1, characterized in that: the plating material comprises one or more of metal, metal oxide and non-metal oxide.
8. The utility model provides a strip production line, is including hot dip galvanizing device, air knife and the cooling bellows that set gradually, its characterized in that: the continuous nano-composite hot galvanizing device according to any one of claims 1 to 7, which is additionally arranged between the air knife and the cooling air box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121052755.8U CN215050636U (en) | 2021-05-17 | 2021-05-17 | Continuous nano composite hot galvanizing device for strip and strip production line |
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| CN202121052755.8U CN215050636U (en) | 2021-05-17 | 2021-05-17 | Continuous nano composite hot galvanizing device for strip and strip production line |
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| CN215050636U true CN215050636U (en) | 2021-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113151784A (en) * | 2021-05-17 | 2021-07-23 | 中冶赛迪工程技术股份有限公司 | Nano composite hot galvanizing device for strip, production process and strip production line |
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2021
- 2021-05-17 CN CN202121052755.8U patent/CN215050636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113151784A (en) * | 2021-05-17 | 2021-07-23 | 中冶赛迪工程技术股份有限公司 | Nano composite hot galvanizing device for strip, production process and strip production line |
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