CN116479360A - Strip steel surface galvanization process - Google Patents
Strip steel surface galvanization process Download PDFInfo
- Publication number
- CN116479360A CN116479360A CN202310752830.9A CN202310752830A CN116479360A CN 116479360 A CN116479360 A CN 116479360A CN 202310752830 A CN202310752830 A CN 202310752830A CN 116479360 A CN116479360 A CN 116479360A
- Authority
- CN
- China
- Prior art keywords
- strip steel
- fixed
- plates
- edge
- air
- 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.)
- Granted
Links
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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention relates to the technical field of hot galvanizing processes, in particular to a strip steel surface galvanizing process, which comprises four supporting legs and a galvanizing pool, wherein the galvanizing pool is placed on the ground, two sinking rollers are rotationally connected in the galvanizing pool and are used for driving strip steel, the top ends of all the supporting legs are jointly fixed with a homogenizing box, and the outer wall of the homogenizing box is provided with a controller. The device is arranged through the edge auxiliary extension mechanism, the width of the strip steel is prolonged, and then when the air knife sprays air flow contacts the strip steel, the edge width of the strip steel is prolonged, so that the impulse of the air flow which is originally reduced at the edge of the strip steel body is transferred to the edge of the edge auxiliary extension mechanism, and the air knife can scrape the zinc liquid at the edge of the strip steel body, thereby being beneficial to eliminating the thick edge of the strip steel.
Description
Technical Field
The invention relates to the field of hot galvanizing processes, in particular to a strip steel surface galvanizing process.
Background
Galvanization refers to a surface treatment technique of plating a layer of zinc on the surface of metal, alloy or other materials to play roles of beauty, rust prevention and the like.
The prior art discloses an invention patent of a part of galvanization process, and Chinese patent with application number of 202110720258.9 discloses a production method of hot dip galvanized strip steel, which comprises a heat preservation bin and a galvanization bin, wherein a first inlet groove and a first outlet groove are formed in two sides of the heat preservation bin, a second inlet groove and a second outlet groove are formed in two sides of the galvanization bin, projections of the first inlet groove, the first outlet groove, the second inlet groove and the second outlet groove in the strip steel moving direction are overlapped, a diversion hole is formed in the bottom of the galvanization bin, a circulation unit is arranged in the heat preservation bin, and the liquid level in the galvanization bin is higher than that of the second inlet groove or the second outlet groove during operation.
In the process of hot galvanizing the strip steel, air knives are arranged at two sides of the strip steel, and the gas sprayed from the slit-shaped nozzles forms very flat and straight air flow like a knife to scrape the zinc liquid on the surface of the strip steel, so that the remained liquid substances are very thin and uniform, and in the process of working of the air knives, the air flow at two ends of the nozzles is outwards scattered, so that the impulse of the air flow at the edge part is reduced, the zinc scraping quantity at the edge part is less than that at the middle part, and the thick edge defect is formed.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a strip steel surface galvanization process.
In order to achieve the above purpose, the invention adopts the following technical scheme: a process for galvanization of a strip steel surface, the galvanization process comprising the steps of:
step one: driving the strip steel to pass through a galvanization pool for galvanization;
step two: blowing the galvanized layer on the surface of the galvanized strip steel through a galvanized layer thickness treatment device to realize air scraping treatment, and identifying the thickness of the galvanized layer in the treatment process;
step three: when the thickness of the galvanized layer on the strip steel edge is detected to be thicker than the middle position, the galvanized layer thickness processing device is provided with an edge auxiliary extension mechanism for the strip steel edge to indirectly extend the edge length of the strip steel;
step four: continuing to drive the strip steel, and continuing thickness treatment of the galvanized layer after galvanization;
the galvanized layer thickness treatment device comprises four supporting legs and a galvanized pool, wherein the galvanized pool is placed on the ground, two sinking rollers are rotationally connected in the galvanized pool and used for driving strip steel, a homogenization box is jointly fixed at the top ends of all the supporting legs, a controller is arranged on the outer wall of the homogenization box, a first through groove is formed in the bottom of the homogenization box, a second through groove is formed in the top of the homogenization box, and a guide mechanism is arranged at the top of the homogenization box and used for stably conveying the strip steel;
two mounting plates are fixed on the side walls of the two sides of the homogenizing box, a supporting plate is fixed between the two mounting plates on the same side, air knives are fixed on the opposite sides of the two supporting plates, and ultrasonic thickness gauges are symmetrically and fixedly arranged at the tops of the two air knives;
the two sides of the strip steel are provided with edge auxiliary extension mechanisms which are used for carrying out auxiliary extension on the outer side of the width edge of the strip steel so as to support the airflow at the edge of the strip steel;
the air outlet of the air knife is provided with an air outlet adjusting mechanism, and the air outlet adjusting mechanism is used for adjusting the air outlet range of the air knife and is matched with the edge auxiliary extension mechanism to further eliminate the thick edge of the strip steel.
Preferably, the edge auxiliary extension mechanism comprises two pushing pieces, the two pushing pieces are respectively fixed on side walls of two sides of the homogenization box, pushing plates are respectively fixed at opposite ends of the two pushing pieces, adjusting plates are respectively fixed at top ends of the two pushing plates, and wind pressure sensors are respectively fixedly installed on side surfaces of two sides of the adjusting plates.
Preferably, the pushing member is an air cylinder, a fixing portion of the air cylinder is fixed on a side wall of one side of the homogenizing box, a telescopic end of the air cylinder is fixed on a side wall of the pushing plate at a corresponding position, and the supporting plate is electrically connected with the air cylinder.
Preferably, the air port adjusting mechanism comprises two shielding plates, the two shielding plates are symmetrically and slidably connected to the inside of the air outlet groove of the air knife, connecting plates are fixed to the bottoms of the two shielding plates, a two-way driving mechanism is arranged between the two connecting plates and used for driving the two connecting plates to be far away from each other or close to each other.
Preferably, the bidirectional driving mechanism comprises a mounting seat and two thread seats, the mounting seat is fixed on one side wall of the air knife, a driving motor is fixed on the side surface of the mounting seat, the wind pressure sensor is electrically connected with the driving motor, a bidirectional threaded rod is fixed at the output shaft end of the driving motor, the two thread seats are respectively fixed on one side, close to the strip steel, of the connecting plate at the corresponding position, and the two thread seats are respectively connected with different thread parts of the bidirectional threaded rod in a threaded mode.
Preferably, two special-shaped guide plates are fixed on the side walls of two sides of the adjusting plate, and all the special-shaped guide plates comprise vertical plates and trapezoid inclined plates.
Preferably, the top ends of the two vertical plates located on the same side are both fixed with fixed guide plates together, the opposite sides of the two fixed guide plates are both fixed with elastic pieces, the opposite ends of the two elastic pieces are both fixed with connecting seats, the bottoms of the two connecting plates are both fixed with yielding plates, all the side walls on the two sides of the yielding plates are both fixed with baffle plates, and the side faces of the yielding plates are connected with sealing conveying belts in a transmission manner.
Preferably, the transmission cavity is formed in one side, far away from the vertical plate, of the two abdicating plates, two supporting rollers are connected in a rotating mode in the transmission cavity, and the surfaces of the two supporting rollers are in transmission connection with the inner side face of the sealing conveying belt.
Preferably, the elastic piece is an elastic telescopic rod, a fixing part of the elastic telescopic rod is fixedly connected with the fixing guide plate, and a telescopic end of the elastic telescopic rod is fixedly connected with the connecting seat.
Preferably, the guiding mechanism comprises a fixed support, the fixed support is fixed at the top of the homogenizing box, a driving roller is rotationally connected to the fixed support, and the strip steel sequentially passes through the first penetrating groove and the second penetrating groove and then is in transmission connection with the driving roller.
Compared with the prior art, the invention has the following beneficial effects:
1. the device is arranged through the edge auxiliary extension mechanism, the width of the strip steel is prolonged, and then when the air knife sprays air flow contacts the strip steel, the edge width of the strip steel is prolonged, so that the impulse of the air flow which is originally reduced at the edge of the strip steel body is transferred to the edge of the edge auxiliary extension mechanism, and the air knife can scrape the zinc liquid at the edge of the strip steel body, thereby being beneficial to eliminating the thick edge of the strip steel.
2. Through the setting of dysmorphism guide board, when the zinc liquid splash is on the regulating plate, guide down the zinc liquid through vertical board, and then guide the inside to the plating bath with the zinc liquid through trapezoidal hang plate to be favorable to retrieving the zinc liquid on the regulating plate.
3. Through the setting of sealed conveyer belt, the elastic component drives the board of stepping down and seals the conveyer belt and be close to belted steel, when sealed conveyer belt and area laminating, can rotate with the removal orbit of adaptation belted steel through sealed conveyer belt itself, thereby be favorable to avoiding influencing the removal of belted steel, after sealed conveyer belt contacts with the side of belted steel, elastic expansion piece is flexible motion and is used for adapting fixed baffle to continue to be close to belted steel, thereby setting up through elastic expansion piece, make sealed conveying drive and the side of belted steel keep inseparable laminating, thereby be favorable to the air knife to strickle the zinc liquid on the regulating plate, be favorable to better to eliminate the bead at belted steel edge.
Drawings
FIG. 1 is a schematic illustration of a process flow of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic view of the invention taken along the cross-section of the zinc plating bath;
FIG. 4 is a schematic view of the structure of the present invention taken along the section of the homogenization tank;
FIG. 5 is a schematic view of the connection between the adjusting plate and the profiled plate according to the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 5A in accordance with the present invention;
FIG. 7 is a schematic view of the present invention along the cross section of the yielding board;
FIG. 8 is a schematic view of the air knife of the present invention;
fig. 9 is an enlarged view of the structure of fig. 8B in accordance with the present invention.
In the figure: 1. a support leg; 2. a galvanization pool; 3. a sink roll; 4. strip steel; 5. a homogenization tank; 6. a first through slot; 7. a second through groove; 8. a mounting plate; 9. a support plate; 10. an air knife; 11. a driving roller; 12. a pushing member; 13. a pushing plate; 14. an adjusting plate; 15. a wind pressure sensor; 16. a shielding plate; 17. a connecting plate; 18. a mounting base; 19. a screw seat; 20. a driving motor; 21. a two-way threaded rod; 22. a special-shaped guide plate; 23. a vertical plate; 24. a trapezoidal inclined plate; 25. fixing the guide plate; 26. an elastic member; 27. a connecting seat; 28. a abdicating plate; 29. a baffle; 30. sealing the conveyor belt; 31. a transmission cavity; 32. a support roller; 33. a fixed bracket; 34. a controller; 35. ultrasonic thickness gauge.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
A process for galvanising the surface of a strip steel as shown in figures 1 to 9, the galvanising process comprising the steps of:
step one: the strip steel 4 is driven to pass through a galvanizing pool 2 for galvanizing;
step two: blowing the galvanized layer on the surface of the galvanized strip steel 4 through a galvanized layer thickness treatment device to realize air scraping treatment, and identifying the thickness of the galvanized layer in the treatment process;
step three: when the thickness of the galvanized layer on the edge of the strip steel 4 is detected to be thicker than the middle position, the galvanized layer thickness processing device is used for arranging an edge auxiliary extension mechanism on the edge of the strip steel 4 so as to indirectly extend the edge length of the strip steel;
step four: continuing to drive the strip steel 4, and continuing to process the thickness of the galvanized layer after the galvanization is completed;
the galvanized layer thickness treatment device in the first to fourth steps comprises four supporting legs 1 and a galvanized pool 2, wherein the galvanized pool 2 is placed on the ground, two sinking rollers 3 are rotationally connected inside the galvanized pool 2, the two sinking rollers 3 are used for driving strip steel 4, the top ends of all the supporting legs 1 are jointly fixed with a homogenizing box 5, the outer wall of the homogenizing box 5 is provided with a controller 34, the bottom of the homogenizing box 5 is provided with a first through groove 6, the top of the homogenizing box 5 is provided with a second through groove 7, the top of the homogenizing box 5 is provided with a guide mechanism, and the guide mechanism is used for stabilizing the conveying strip steel 4;
two mounting plates 8 are fixed on the side walls of the two sides of the homogenization box 5, a supporting plate 9 is fixed between the two mounting plates 8 positioned on the same side, air knives 10 are fixed on the opposite sides of the two supporting plates 9, and ultrasonic thickness gauges 35 are symmetrically and fixedly arranged at the tops of the two air knives 10;
the two sides of the strip steel 4 are provided with edge auxiliary extension mechanisms which are used for carrying out auxiliary extension on the outer side of the width edge of the strip steel 4 so as to support the airflow at the edge of the strip steel 4;
an air outlet of the air knife 10 is provided with an air outlet adjusting mechanism, and the air outlet adjusting mechanism is used for adjusting the air outlet range of the air knife 10 and is matched with an edge auxiliary extension mechanism to further eliminate the thick edge of the strip steel 4; in the process of hot galvanizing the strip steel 4, by arranging the air knives 10 at two sides of the strip steel 4, the air sprayed from the slit-shaped nozzles forms a very flat and straight air flow like a knife to scrape the zinc liquid on the surface of the strip steel 4, so that the remained liquid substances are very thin and uniform, and in the process of working the air knives 10, the air flow at two ends of the nozzles outwards dissipates a part, so that the impulse of the air flow at the edge is reduced, the zinc scraping amount at the edge is less than that at the middle part, thereby forming a thick edge defect, the embodiment of the invention can solve the problems, and in the specific embodiment, when the strip steel 4 is guided by a guide mechanism to sequentially pass through the first through groove 6 and the second through groove 7 from the galvanized pool 2, and when the strip steel 4 passes through the air spraying path of the air knives 10, the air knives 10 continuously spray the galvanized surface of the strip steel 4, so that the zinc liquid on the strip steel 4 is blown downwards by wind force and flows into the interior of the plating bath, when the ultrasonic thickness gauge 35 detects that the thickness information of the zinc liquid at the edge of the strip steel 4 exceeds a preset value, then the ultrasonic thickness gauge 35 sends the acquired information to the controller 34, the controller 34 controls the starting of the edge auxiliary extension mechanism, the two edge auxiliary extension mechanisms are firstly synchronous to the side of the strip steel 4, so that the width of the strip steel 4 is prolonged, the air knife 10 is fixed in the homogenization box 5 through the supporting plate 9, when the air flow sprayed by the air knife 10 is contacted with the strip steel 4, because the edge width of the strip steel 4 is prolonged, the impulse of the air flow originally reduced at the edge of the strip steel 4 body is transferred to the edge of the edge auxiliary extension mechanism, so that the air knife 10 can scrape the zinc liquid at the edge of the strip steel 4 body, thereby being beneficial to eliminating the thick edge of the strip steel 4, if the edge auxiliary extension mechanism detects that the wind pressure is insufficient, the edge auxiliary extension mechanism can be linked with the wind gap adjusting mechanism to adjust the wind outlet range and the wind outlet power of the air knife 10, so that the wind outlet range of the air knife 10 is enlarged through the wind gap adjusting mechanism, on one hand, the edge of the wind outlet of the air knife 10 is not positioned at the edge of the strip steel 4 body, the condition that the thick edge forms the thick edge at the edge of the strip steel 4 body is reduced, on the other hand, the wind outlet power of the wind outlet is enhanced, the outer surface of the strip steel 4 is better scraped, the thick edge at the edge of the strip steel 4 is better matched between the wind outlet range and the wind outlet power, and the scraped zinc can flow into the galvanized bath 2 again through the first through groove 6, so that the zinc can be reutilized.
It should be further noted that the edge auxiliary extension mechanism includes two pushing members 12, the two pushing members 12 are respectively fixed on two side walls of the homogenization tank 5, pushing plates 13 are respectively fixed at opposite ends of the two pushing members 12, adjusting plates 14 are respectively fixed at top ends of the two pushing plates 13, and wind pressure sensors 15 are respectively and fixedly installed on two side surfaces of the two adjusting plates 14; during operation, the thickness of the edge of the strip steel 4 is continuously detected through the ultrasonic thickness gauge 35, when the ultrasonic thickness gauge 35 detects that the thickness of the edge of the strip steel 4 exceeds a preset value, the thickness signal is sent to the controller 34 through the ultrasonic thickness gauge 35, the controller 34 generates first control information by using the acquired thickness information, the pushing piece 12 is controlled through the first control information, the pushing piece 13 is pushed to move through telescopic motion of the pushing piece 12, the pushing piece 13 moves to drive the adjusting plates 14 to move, so that the two adjusting plates 14 are synchronously moved towards the side of the strip steel 4, the width of the strip steel 4 is increased, the impulse of the air flow reduced at the edge of the strip steel 4 body is transferred to the edge of the adjusting plates 14, the impulse of the air flow is reduced at the edge of the adjusting plates 14, so that the impulse of the air flow at the edge of the strip steel 4 is increased, the air flow is eliminated, meanwhile, the air pressure sensor 15 detects the air pressure passing through the adjusting plates 14, if the air pressure sensor 15 acquires the pressure passing through the adjusting plates 14 to be smaller than the preset value, the air pressure sensor 15 sends the acquired pressure information to the controller 34, the second control mechanism is started to generate second control information, and an air inlet mechanism is operated to start to operate.
As one embodiment of the present invention, the pushing member 12 is a cylinder, a fixing portion of the cylinder is fixed on a side wall of the homogenization tank 5, a telescopic end of the cylinder is fixed on a side wall of the pushing plate 13 at a corresponding position, and the wind pressure sensor 15 is electrically connected with the cylinder; when the device is required to return, the air cylinder is used for contracting to drive the pushing plate 13 to return, the pushing plate 13 drives the adjusting plate 14 to return, and therefore the next use is facilitated.
It should be further noted that the tuyere adjusting mechanism includes two shielding plates 16, the two shielding plates 16 are symmetrically and slidably connected inside the air outlet slot of the air knife 10, the bottoms of the two shielding plates 16 are both fixed with connecting plates 17, a bidirectional driving mechanism is arranged between the two connecting plates 17, and the bidirectional driving mechanism is used for driving the two connecting plates 17 to be far away from or close to each other; the pressure information of the flowing air flow passing through the surface of the regulating plate 14 is detected by the air pressure sensor 15, when the wind passes through the air pressure sensor 15, the pressure of the air pressure sensor 15 directly acts on the diaphragm of the sensor, so that the diaphragm generates micro displacement proportional to the pressure of the medium, the resistance of the sensor is changed, and the change is detected by an electronic circuit and converted into a standard signal corresponding to the pressure, so that when the obtained pressure information is smaller than a preset value, the air pressure sensor 15 sends the obtained pressure information to the controller 34, the controller 34 generates second control information, the two-way driving mechanism is controlled by the second control information, the two connecting plates 17 are driven to be away from each other by controlling the two-way driving mechanism, and the two connecting plates 17 are driven to be away from each other by controlling the two shielding plates 16 to be away from each other, thereby expanding the air outlet range of the air knife 10, and being beneficial to better eliminating the edge thick edge of the strip steel 4 by the matching regulating plate 14.
As one embodiment of the present invention, the bidirectional driving mechanism includes a mounting seat 18 and two screw thread seats 19, the mounting seat 18 is fixed on a side wall of one side of the air knife 10, a driving motor 20 is fixed on a side surface of the mounting seat 18, a wind pressure sensor 15 is electrically connected with the driving motor 20, a bidirectional threaded rod 21 is fixed at an output shaft end of the driving motor 20, the two screw thread seats 19 are respectively fixed on one side of a connecting plate 17 at a corresponding position, which is close to the strip steel 4, and the two screw thread seats 19 are respectively connected on different screw thread parts of the bidirectional threaded rod 21 in a threaded manner; during operation, the driving motor 20 is controlled through the first control information, the driving motor 20 drives the bidirectional threaded rod 21 to rotate, so that the two thread seats 19 are far away from each other on different thread parts of the bidirectional threaded rod 21, and the two thread seats 19 drive the corresponding shielding plates 16 to move through the connecting plates 17, thereby being beneficial to realizing the adjustment of the air injection range of the air knife 10.
As an embodiment of the present invention, the profile guide plates 22 are fixed on both side walls of the two adjusting plates 14, and all the profile guide plates 22 include a vertical plate 23 and a trapezoidal inclined plate 24; in operation, in the process of scraping the zinc liquid on the outer surface of the strip steel 4 by the air knife 10, a part of the zinc liquid is affected by wind force and can splash on the knife adjusting plate 14, if the zinc liquid on the adjusting plate 14 is not drained, the zinc liquid can flow to different parts of the homogenization box 5 to cause waste of the zinc liquid, and the embodiment of the invention can solve the problems.
As an implementation mode of the invention, the top ends of two vertical plates 23 positioned on the same side are both fixed with fixed guide plates 25 together, the opposite sides of the two fixed guide plates 25 are both fixed with elastic pieces 26, the opposite ends of the two elastic pieces 26 are both fixed with connecting seats 27, the bottoms of the two connecting plates 17 are both fixed with yielding plates 28, the side walls of both sides of all the yielding plates 28 are both fixed with baffle plates 29, and the side surfaces of the yielding plates 28 are connected with a sealing conveying belt 30 in a transmission way; during operation, because the adjusting plate 14 needs to be attached to the side edge of the strip steel 4 when the adjusting plate 14 moves towards the side wall of the strip steel 4, if the adjusting plate 14 is abutted against the strip steel 4 to easily influence the normal motion of the strip steel 4, if a gap is reserved between the side edge of the adjusting plate 14 and the side edge of the strip steel 4, turbulence is easily caused in the blowing process of the two air knives 10, so that the effect on the elimination of the thick edges is brought about, the embodiment of the invention can solve the problems, the vertical plate 23 moves to drive the fixed guide plate 25 to approach the strip steel 4, the fixed guide plate 25 drives the elastic piece 26 to approach the strip steel 4 firstly, the elastic piece 26 drives the yielding plate 28 to approach the sealing conveying belt 30 to the strip steel 4, and when the sealing conveying belt 30 is attached to the strip steel 4, the sealing conveying belt 30 can rotate to adapt to the moving track of the strip steel 4 through the sealing conveying belt 30, so that the influence on the motion of the strip steel 4 is avoided, and after the sealing conveying belt 30 contacts with the side edge of the strip steel 4, the elastic telescopic piece is used for adapting the fixed guide plate 25 to continue to approach the strip steel 4, so that the setting of the elastic telescopic piece can enable the sealing conveying belt 30 to keep the thick edges to be well adjusted to the flat edges of the strip steel 10, and the zinc edges on the strip steel 4 can be better adjusted.
As an implementation mode of the invention, one side of the two abdicating plates 28 far away from the vertical plate is provided with a transmission cavity 31, the transmission cavity 31 is rotationally connected with two supporting rollers 32, and the surfaces of the two supporting rollers 32 are in transmission connection with the inner side surface of the sealing conveying belt 30; when the device works, the sealing conveyer belt 30 is in contact with the side edge of the strip steel 4, the strip steel 4 drives the sealing conveyer belt 30 to rotate, and the sealing conveyer belt 30 rotates in the transmission cavity 31 through the two supporting rollers 32, so that interference of the sealing conveyer belt 30 to the movement of the strip steel 4 is avoided.
As an embodiment of the present invention, the elastic member 26 is an elastic telescopic rod, the fixing portion of the elastic telescopic rod is fixedly connected to the fixing guide plate 25, and the telescopic end of the elastic telescopic rod is fixedly connected to the connection seat 27.
As one embodiment of the invention, the guiding mechanism comprises a fixed bracket 33, the fixed bracket 33 is fixed on the top of the homogenization tank 5, the fixed bracket 33 is rotatably connected with a driving roller 11, and the strip steel 4 sequentially passes through the first through groove 6 and the second through groove 7 and is in driving connection with the driving roller 11; during operation, the strip steel 4 moves to drive the driving roller 11 to rotate, so that the strip steel 4 can be better stably moved through the driving roller 11.
The working principle of the invention is as follows:
when the strip steel 4 is guided by the guiding mechanism to sequentially pass through the first through groove 6 and the second through groove 7 from the galvanizing bath 2, when the strip steel 4 passes through the air injection path of the air knife 10, the air knife 10 continuously injects air to the galvanized surface of the strip steel 4, so that zinc liquid on the strip steel 4 is blown downwards by wind force and flows into the galvanizing bath, when the ultrasonic thickness gauge 35 detects that the thickness information of the zinc liquid at the edge of the strip steel 4 exceeds a preset value, the ultrasonic thickness gauge 35 sends the acquired information to the controller 34, the controller 34 controls the edge auxiliary extension mechanisms to start, the two edge auxiliary extension mechanisms firstly synchronously approach the side of the strip steel 4, so that the width of the strip steel 4 is extended, and when the air flow sprayed by the air knife 10 is contacted with the strip steel 4, because the edge width of the strip steel 4 is extended, so that the impulse of the air flow which is originally reduced at the edge of the strip steel 4 body is transferred to the edge of the edge auxiliary extension mechanism, the air knife 10 can scrape the zinc liquid at the edge of the strip steel 4 body, thereby being beneficial to eliminating the thick edge of the strip steel 4, if the edge auxiliary extension mechanism detects insufficient air pressure, the edge auxiliary extension mechanism can link the air outlet range and the air outlet power of the air knife 10 by the air outlet regulating mechanism, thereby enlarging the air outlet range of the air knife 10 by the air outlet regulating mechanism, being beneficial to ensuring that the air outlet edge of the air knife 10 is not positioned at the edge of the strip steel 4 body, reducing the condition that the thick edge forms a thick edge at the edge of the strip steel 4 body, enhancing the air outlet power of the air outlet, being beneficial to better scraping the outer surface of the strip steel 4 with the zinc liquid, and better eliminating the thick edge at the edge of the strip steel 4 by the cooperation between the edge and the edge, the scraped zinc liquid flows into the galvanizing bath 2 again through the first through groove 6, thereby being beneficial to reuse.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. The galvanization process for the surface of the strip steel is characterized by comprising the following steps of:
step one: driving the strip steel (4) to pass through a galvanization pool (2) for galvanization;
step two: blowing the galvanized layer on the surface of the galvanized strip steel (4) through a galvanized layer thickness treatment device to realize air scraping treatment, and identifying the thickness of the galvanized layer in the treatment process;
step three: when the thickness of the galvanized layer on the edge of the strip steel (4) is detected to be thicker than the middle position, the galvanized layer thickness processing device is used for arranging an edge auxiliary extension mechanism on the edge of the strip steel (4) to indirectly extend the edge length of the strip steel;
step four: continuing to drive the strip steel (4), and continuing to treat the thickness of the galvanized layer after the galvanization is finished;
the galvanized layer thickness treatment device comprises four supporting legs (1) and a galvanized pool (2), wherein the galvanized pool (2) is placed on the ground, two sinking rollers (3) are rotatably connected in the galvanized pool (2), the two sinking rollers (3) are used for driving strip steel (4), a homogenization box (5) is jointly fixed at the top ends of all the supporting legs (1), a controller (34) is arranged on the outer wall of the homogenization box (5), a first through groove (6) is formed in the bottom of the homogenization box (5), a second through groove (7) is formed in the top of the homogenization box (5), and a guide mechanism is arranged at the top of the homogenization box (5) and used for stably conveying the strip steel (4);
two mounting plates (8) are fixed on the side walls of the two sides of the homogenizing box (5), a supporting plate (9) is fixed between the two mounting plates (8) on the same side, air knives (10) are fixed on the opposite sides of the two supporting plates (9), and ultrasonic thickness gauges (35) are symmetrically and fixedly arranged at the tops of the two air knives (10);
the two sides of the strip steel (4) are provided with edge auxiliary extension mechanisms, and the edge auxiliary extension mechanisms are used for carrying out auxiliary extension on the outer side of the width edge of the strip steel (4) so as to support the airflow at the edge of the strip steel (4);
an air outlet of the air knife (10) is provided with an air outlet adjusting mechanism, and the air outlet adjusting mechanism is used for adjusting the air outlet range of the air knife (10) and is matched with the edge auxiliary extension mechanism to further eliminate the thick edge of the strip steel (4).
2. The strip steel surface galvanization process according to claim 1, wherein said edge auxiliary extension mechanism comprises two pushing members (12), said pushing members (12) are respectively fixed on two side walls of said homogenization box (5), pushing plates (13) are respectively fixed at opposite ends of said pushing members (12), adjusting plates (14) are respectively fixed at top ends of said pushing plates (13), and wind pressure sensors (15) are respectively fixedly installed on two side surfaces of said adjusting plates (14).
3. The strip steel surface galvanization process according to claim 2, characterized in that said pushing member (12) is a cylinder, a fixing portion of said cylinder is fixed on a side wall of one side of said homogenization tank (5), a telescopic end of said cylinder is fixed on a side wall of said pushing plate (13) at a corresponding position, and said supporting plate (9) is electrically connected with said cylinder.
4. A strip steel surface galvanization process according to claim 3, characterized in that said tuyere adjusting mechanism comprises two shielding plates (16), said two shielding plates (16) are symmetrically and slidably connected to the inside of said air outlet groove of said air knife (10), the bottoms of said two shielding plates (16) are respectively fixed with a connecting plate (17), a bidirectional driving mechanism is arranged between said two connecting plates (17), said bidirectional driving mechanism is used for driving said two connecting plates (17) to be far away from or close to each other.
5. The strip steel surface galvanization process according to claim 4, wherein the bidirectional driving mechanism comprises a mounting seat (18) and two thread seats (19), the mounting seat (18) is fixed on one side wall of the air knife (10), a driving motor (20) is fixed on the side surface of the mounting seat (18), the wind pressure sensor (15) is electrically connected with the driving motor (20), a bidirectional threaded rod (21) is fixed at the output shaft end of the driving motor (20), the two thread seats (19) are respectively fixed on one side, close to the strip steel (4), of the connecting plate (17) at corresponding positions, and the two thread seats (19) are respectively connected with different thread parts of the bidirectional threaded rod (21) in a threaded mode.
6. The strip steel surface galvanization process according to claim 4, characterized in that the two side walls of both of said adjusting plates (14) are each fixed with a profiled guide plate (22), and all of said profiled guide plates (22) comprise a vertical plate (23) and a trapezoidal inclined plate (24).
7. The strip steel surface galvanization process according to claim 6, characterized in that the top ends of two vertical plates (23) positioned on the same side are both fixed with fixed guide plates (25) together, the opposite sides of two fixed guide plates (25) are both fixed with elastic pieces (26), the opposite ends of two elastic pieces (26) are both fixed with connecting seats (27), the bottoms of two connecting plates (17) are both fixed with yielding plates (28), baffle plates (29) are all fixed on the side walls of two sides of the yielding plates (28), and the side surfaces of the yielding plates (28) are in transmission connection with a sealing conveying belt (30).
8. The strip steel surface galvanization process according to claim 7, wherein a transmission cavity (31) is formed on one side, far away from the vertical plate, of each of the two yielding plates (28), two supporting rollers (32) are rotatably connected in the transmission cavity (31), and the surfaces of the two supporting rollers (32) are in transmission connection with the inner side surface of the sealing conveying belt (30).
9. The galvanization process for strip steel surfaces according to claim 7, wherein said elastic member (26) is an elastic telescopic rod, a fixing portion of said elastic telescopic rod is fixedly connected to said fixing guide plate (25), and a telescopic end of said elastic telescopic rod is fixedly connected to said connection base (27).
10. The strip steel surface galvanization process according to claim 9, wherein the guiding mechanism comprises a fixed support (33), the fixed support (33) is fixed on the top of the homogenization tank (5), a driving roller (11) is rotatably connected to the fixed support (33), and the strip steel (4) sequentially passes through the first through groove (6) and the second through groove (7) and is in driving connection with the driving roller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310752830.9A CN116479360B (en) | 2023-06-26 | 2023-06-26 | Strip steel surface galvanization process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310752830.9A CN116479360B (en) | 2023-06-26 | 2023-06-26 | Strip steel surface galvanization process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116479360A true CN116479360A (en) | 2023-07-25 |
| CN116479360B CN116479360B (en) | 2023-08-29 |
Family
ID=87212357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310752830.9A Active CN116479360B (en) | 2023-06-26 | 2023-06-26 | Strip steel surface galvanization process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116479360B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118422098A (en) * | 2024-07-05 | 2024-08-02 | 天津海钢板材有限公司 | Zinc plating equipment for producing middle-width strip steel and production process thereof |
| CN118480758A (en) * | 2024-07-05 | 2024-08-13 | 天津海钢板材有限公司 | Medium-width and high-value-added galvanized steel strip and production method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10251820A (en) * | 1997-03-14 | 1998-09-22 | Kawasaki Steel Corp | Wiping device for hot dip metal coating |
| CN105695915A (en) * | 2014-11-27 | 2016-06-22 | 上海梅山钢铁股份有限公司 | Control method for eliminating edge over zinc-plating defect |
| CN115874133A (en) * | 2023-02-01 | 2023-03-31 | 天津海钢板材有限公司 | Strip steel for guardrail plate and production method thereof |
-
2023
- 2023-06-26 CN CN202310752830.9A patent/CN116479360B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10251820A (en) * | 1997-03-14 | 1998-09-22 | Kawasaki Steel Corp | Wiping device for hot dip metal coating |
| CN105695915A (en) * | 2014-11-27 | 2016-06-22 | 上海梅山钢铁股份有限公司 | Control method for eliminating edge over zinc-plating defect |
| CN115874133A (en) * | 2023-02-01 | 2023-03-31 | 天津海钢板材有限公司 | Strip steel for guardrail plate and production method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118422098A (en) * | 2024-07-05 | 2024-08-02 | 天津海钢板材有限公司 | Zinc plating equipment for producing middle-width strip steel and production process thereof |
| CN118480758A (en) * | 2024-07-05 | 2024-08-13 | 天津海钢板材有限公司 | Medium-width and high-value-added galvanized steel strip and production method thereof |
| CN118480758B (en) * | 2024-07-05 | 2024-11-19 | 天津海钢板材有限公司 | Medium-width and high-value-added galvanized steel strip and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116479360B (en) | 2023-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116479360B (en) | Strip steel surface galvanization process | |
| US5290384A (en) | Apparatus for controlled spray etching | |
| EP2248597A1 (en) | Device and method for applying application liquid | |
| CN113210434A (en) | Rolling process technology lubricating and spraying device capable of automatically adjusting oil injection quantity based on rolling speed | |
| US20090229516A1 (en) | Combined machine, particularly for painting sheets of glass, crystal or other flat surfaces in general | |
| CN110624753B (en) | Vertical roller painting system for paint | |
| CN221480325U (en) | Environment-friendly fabric leveling device | |
| CN118179842A (en) | Surface coating device and surface coating method | |
| JP4461796B2 (en) | Continuous coating method and continuous coating apparatus | |
| CN217407582U (en) | Belt conveyor for frying and baking | |
| CN212041260U (en) | A corrosion protection agent automatic brushing device | |
| CN110076045A (en) | A kind of electrical steel surface coating device | |
| KR0116790Y1 (en) | Vertical Chrome Processing Unit | |
| CN209334050U (en) | A kind of regulating device of spray site | |
| KR100825283B1 (en) | Cold rolled steel sheet cleaning device and electrolytic cleaning method in electrolytic cleaning line | |
| CN222093812U (en) | Glue spraying device for mattress | |
| CN221414500U (en) | Stainless steel wire drawing device | |
| CN118681734B (en) | A surface coating device for copper foil production | |
| CN1426493A (en) | Method and device for treating surfaces of metallic strip, especially for pickling rolled material | |
| CN222129176U (en) | Wheaten food processing and leveling assembly | |
| CN116765921A (en) | A cutting device for sink processing | |
| CN214717831U (en) | Device for oiling terminal | |
| CN213529301U (en) | Automatic spraying device for outer surface of steel box girder | |
| CN216832852U (en) | Wall paper pattern sprays and prevents splash device with regulation formula printing ink | |
| CN111910181B (en) | Blackening device for metal surface galvanization and processing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |