A strip steel production line and method

Abstract

The application discloses a strip steel production line and method, the equipment includes a heat source, the heat source is arranged on a production channel communicated with each process section, and the heat source provides heat for a hot baking area above the production channel. Through the equipment and method, the occurrence of white spots and rust can be effectively avoided, the production of unqualified products is reduced, the production and subsequent processing costs are reduced, and the production efficiency and economic benefits are improved.

Description

Technical Field

[0001] This invention relates to strip steel production The field of technology relates, in particular to a strip steel production line and method. Background Technology

[0002] The strip steel production process involves several process stages. In some process stages, process tanks are set up to match the corresponding processes. The solution parameters in these process tanks have certain temperature requirements. Due to the influence of seasonal temperature differences and the fact that the process tanks are not sealed properly, some water vapor will rise to the surface. Due to environmental factors, the water vapor will condense during the rising process. After condensation, the water droplets will fall onto the strip steel plate, causing blemishes and defects on the steel plate surface, and may also cause some processes to fail. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a strip steel production line and method that overcomes or at least partially solves the above problems.

[0004] In a first aspect, a strip steel production line is provided, comprising: a heat source disposed on a production channel connecting various process sections, the heat source providing heat to a drying zone above the production channel.

[0005] Optionally, the heat source is a heating plate.

[0006] Optionally, several separate hot drying zones are provided above the production channel, and the heating plate is installed in the hot drying zone.

[0007] Optionally, the hot-drying zone is located above the process section, or the hot-drying zone is located outside the process section.

[0008] Optionally, the process section is provided with a process tank, a tank cover is provided above the process tank, the hot drying zone is located below the tank cover, and the heat source is installed at the lower end of the tank cover.

[0009] Optionally, the process segment includes an electroplating process segment, a fluxing process segment, and a passivation process segment, and the process tank includes an electroplating tank, a fluxing tank, and a passivation tank.

[0010] Optionally, the heat source is slidably mounted above the production channel.

[0011] Optionally, a slide rail connecting each process section is installed above the production channel, and the heat source is slidably connected to the slide rail.

[0012] Secondly, a method for producing strip steel is provided, comprising: the strip steel to be processed sequentially passes through several process sections set on the production channel for corresponding process processing;

[0013] The strip steel passing through the hot drying zone above the production channel is dried by a heat source set on the production channel.

[0014] Optional, also includes:

[0015] Identify potential hazard points on the production channel; these potential hazard points are the locations where the strip steel defects occur.

[0016] A heat-drying zone is defined above the potential hazard point;

[0017] The heat source is installed in the hot drying zone.

[0018] The technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0019] The strip steel production line and method provided in this invention dry the steel strip passing through the drying zone by setting a heat source above the production channel connecting various process sections. This prevents condensate from dripping onto the steel plate, avoiding white spots and rust, and achieving more stable steel strip production quality. It is simple and easy to implement. A hot drying zone is planned and a heat source is installed at areas in the production channel prone to white spots and rust. Technical and operational personnel only need to follow the specified steps to implement the solution at the identified potential hazard points, making it highly operable and practical. Because it effectively avoids white spots and rust, reducing the production of defective products, it can lower production and subsequent processing costs, improve production efficiency and economic benefits. Although heating uses electricity, the heating position can be adjusted at any time based on production experience, and the electricity cost is not high.

[0020] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 This is a schematic diagram of a strip steel production line in an embodiment of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of a strip steel production line in an embodiment of the present invention. Figure 2 ;

[0024] Figure 3This is a flowchart of the strip steel production method in an embodiment of the present invention. Detailed Implementation

[0025] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings.

[0026] The accompanying drawings illustrate various structural schematics according to embodiments of the present disclosure. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0027] To better understand the above technical solutions, the following will describe the above technical solutions in detail with reference to specific implementation methods. It should be understood that the embodiments of this disclosure and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0028] This invention provides a strip steel production line; please refer to [the relevant documentation]. Figure 1 , Figure 1 This is a schematic diagram of a strip steel production line in an embodiment of the present invention. Figure 1 It includes: a heat source 1, which is located on the production channel 3 connecting each process section 2, and the heat source 1 provides heat to the hot drying zone 4 above the production channel 3.

[0029] The following examples illustrate... Figure 2 This embodiment provides a detailed description of the solution.

[0030] Taking tinplate as an example, tinplate is a widely used food packaging material with advantages such as corrosion resistance and freshness preservation. However, during the production process, many factors can affect the quality of tinplate, one of which is the generation and dripping of moisture. Due to environmental factors such as temperature and humidity, moisture drips onto the steel plate, forming white spots and rust, thus affecting product quality and market competitiveness. Therefore, controlling the dripping of tinplate, resulting in white spots and rust, has become an urgent problem to be solved.

[0031] Tinplate is widely used in food packaging and is the most common food contact metal material. However, its production process involves the use of liquids such as electroplating solutions, fluxes, and passivation solutions. Controlling the parameters of these solutions requires specific temperature control. Due to seasonal temperature variations, and especially because the fluxing tank before and after softening in tin-plating production lines are often not properly sealed, some moisture rises to the surface. Furthermore, environmental factors can cause moisture generation during production. If this moisture condenses during its ascent, it drips onto the steel plate. On one hand, during softening, the water droplets absorb heat as they evaporate, causing the steel plate temperature at the dripping point to drop below the softening temperature, resulting in failed tin layer softening and surface defects. Even if these defects are inconspicuous or difficult to detect, the presence of the water droplets causes oxidation and rust in the corresponding areas of the steel plate. On the other hand, water droplets falling from the steel plate after softening can create large patches of rust. Given the high temperature fluctuations in the production environment, a solution must be found to control white spots and rust caused by tinplate dripping. Existing measures primarily involve strengthening the seal in process section 2, where moisture is easily generated, such as installing a baffle above the steel strip to prevent condensation from dripping onto it. However, it was later discovered that water droplets still occur, causing defects. This is mainly because the sealing cover and baffle are subject to temperature differences and high humidity, both of which can potentially lead to defects.

[0032] In order to eliminate defects, the technical solution of the present invention is used to improve the tinplate production equipment and method. A heat source 1 is set on the production channel 3 that connects each process section 2. The heat source 1 provides heat to the hot baking zone 4 above the production channel 3.

[0033] As an optional implementation, the process section is provided with a process tank, and a tank cover 5 is provided above the process tank to prevent dust. Specifically, the hot drying zone 4 is located below the tank cover 5, the heat source 1 is installed at the lower end of the tank cover 5, and the tank cover 5 also prevents heat dissipation.

[0034] As an optional implementation, the heat source 1 is a heating plate, such as a PTC ceramic constant-temperature heating plate. Installing a PTC ceramic constant-temperature heating plate in the heating zone controls the temperature, ensuring the uniformity and stability of the internal temperature of the production equipment. PTC ceramic constant-temperature heating plates have advantages such as uniform heating, good insulation, rapid heating, and high thermal efficiency. They are also energy-saving, environmentally friendly, small in size, and highly flexible in application. Furthermore, installing a PTC ceramic constant-temperature heating plate inside the equipment can effectively avoid the problem of condensation caused by temperature differences between the sealing cover and the baffle plate.

[0035] As an optional implementation, several separate drying zones 4 are provided above the production channel 3, and the heating plate is installed in the drying zone 4. Specifically, as follows: Figure 1As shown, the hot drying zone 4 is located above or outside of the process section 2. Heating plates are installed in areas prone to white spots and corrosion; the heating position can be adjusted at any time based on production experience, and the energy cost is low.

[0036] Specifically, process segment 2 in the tinplate production process includes an electroplating segment, a fluxing segment, and a passivation segment. The process tanks include an electroplating tank, a fluxing tank, and a passivation tank. That is, the electroplating segment uses an electroplating tank, the fluxing segment uses a fluxing tank, and the passivation segment uses a passivation tank. Based on the temperature parameters of each solution in tinplate production, the process characteristics are set, and the temperature is controlled at 80 degrees Celsius to prevent condensation, thus effectively avoiding problems such as water vapor, white spots, and corrosion. Through production practice, improving the uniformity and stability of the solution temperature in tinplate production and controlling internal temperature changes can also effectively prevent water vapor, white spots, and corrosion. Specifically, the temperature difference during each adjustment should not exceed 1 degree Celsius, and the adjustment interval should be no less than 1 hour.

[0037] As an optional implementation, the heat source 1 is slidably installed above the production channel 3. During the tinplate production process, due to seasonal temperature variations, the location of white spots and rust on the steel strip varies at different times. The heat source 1 can be slid to a location prone to moisture accumulation as needed, thereby allowing for real-time adjustment of the heating position. One heat source can correspond to the heating of multiple process sections. Specifically, as... Figure 2 As shown, a slide rail 6 connecting each process section 2 is installed above the production channel 3, and the heat source 1 is slidably connected to the slide rail 6. When the heat source 1 is a heating plate, the heating plate slides along the slide rail to different process sections of the production channel 3, thereby providing flexible heating. The advantage of the sliding connection is that it eliminates the need to install the heat source 1 on the tank cover 5 of each process section, reducing costs and making it more suitable for flexible heating of several process sections 2 on the same horizontal line.

[0038] Based on the same inventive concept, this invention also provides a method for producing strip steel. Please refer to [link / reference]. Figure 3 , Figure 3 The flowchart of the strip steel production method in this embodiment of the invention includes:

[0039] The strip steel to be processed passes through several process sections 2 set on the production channel 3 in sequence to carry out corresponding process processing;

[0040] The strip steel passing through the hot drying zone 4 above the production channel is dried by the heat source 1 set on the production channel 3.

[0041] Specifically, it also includes:

[0042] Potential hazard points are identified on the production channel 3; these potential hazard points are the locations where the strip defects occur.

[0043] A heat-drying zone 4 is defined above the potential hazard point;

[0044] The heat source 1 is installed in the hot drying zone 4.

[0045] The defects in strip steel are potential points where the strip steel is easily corroded by moisture during the production process, resulting in defects such as white spots and rust. By energizing the heating plates at different potential points, the heating position can be adjusted, thereby flexibly and effectively avoiding the occurrence of white spots and rust, reducing the production of defective products, lowering production and subsequent processing costs, improving production efficiency and economic benefits, and with low electricity costs.

[0046] Taking tinplate production as an example, the specific strip steel production operation is as follows:

[0047] 1. Add a PTC ceramic constant temperature heating plate to the top of the inside of the strip steel production equipment or to the baffle plate to control the uniformity and stability of the temperature inside the equipment or the top of the baffle plate.

[0048] 2. Based on the temperature parameters of each solution in the tinplate production process, control the temperature to not exceed 80 degrees Celsius and maintain the uniformity and stability of the temperature inside the equipment or on the top of the baffle plate.

[0049] 3. After the problem occurs, analyze the location where the water droplets are generated and install a PTC ceramic constant temperature heating plate.

[0050] 4. Regularly inspect the condition of internal components such as sealing covers and baffles, and clean and maintain them.

[0051] The steps for installing a PTC ceramic constant temperature heating plate are as follows:

[0052] 1. The shape and area of ​​the top or baffle inside the equipment are different. The size and number of PTC ceramic constant temperature heating plates should be reasonably arranged to design a structure that ensures uniform heating and does not produce dripping dead corners.

[0053] 2. Prepare the required number of screws and pre-install them at the four corners of the heating plate.

[0054] 3. Place the PTC ceramic constant temperature heating plate in the required installation position, and ensure that it is aligned and positioned accurately.

[0055] 4. Secure the heating plate using screws pre-installed in the screw holes on the heating plate. First, loosen the two diagonally opposite screws, then tighten all other screws. Be careful not to overtighten them to prevent damage to the heating plate from impact.

[0056] 5. Connect the heating plate to the power supply and test if the switch is working properly. If the test shows no abnormalities, it is ready for use.

[0057] It is important to note that the installation of the PTC ceramic constant temperature heating plate requires careful handling to avoid damage during the installation process. It is also necessary to prevent damage or loosening of the power cord.

[0058] 6. Wiring should be done properly and concealed behind the heating plate to prevent interference with its heating function. Where wiring is required through holes, the holes must be sealed after wiring is completed to prevent airflow.

[0059] The technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0060] The strip steel production line and method provided in this invention dry the steel strip passing through the drying zone by setting a heat source above the production channel connecting various process sections. This prevents condensate from dripping onto the steel plate, avoiding white spots and rust, and achieving more stable steel strip production quality. It is simple and easy to implement. A hot drying zone is planned and a heat source is installed at areas in the production channel prone to white spots and rust. Technical and operational personnel only need to follow the specified steps to implement the solution at the identified potential hazard points, making it highly operable and practical. Because it effectively avoids white spots and rust, reducing the production of defective products, it can lower production and subsequent processing costs, improve production efficiency and economic benefits. Although heating uses electricity, the heating position can be adjusted at any time based on production experience, and the electricity cost is not high.

[0061] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0062] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, inventive aspects lie in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, wherein each claim itself is a separate embodiment of the invention.

Claims

1. A strip steel production line, characterized in that, Includes a heat source, which is disposed on the production channel connecting the various process sections. The heat source is slidably installed above the production channel and provides heat to the hot baking zone above the production channel. The process sections include an electroplating process section, a fluxing process section, and a passivation process section. The process section is provided with a process tank, and a tank cover is provided above the process tank. The hot drying zone is located below the tank cover, and the heat source is installed at the lower end of the tank cover. A slide rail connecting the various process sections is installed above the production channel, and the heat source is slidably connected to the slide rail.

2. The strip steel production line as described in claim 1, characterized in that, The heat source is a heating plate.

3. The strip steel production line as described in claim 2, characterized in that, Several separate hot drying zones are set above the production channel, and the heating plate is installed in the hot drying zone.

4. The strip steel production line as described in claim 1, characterized in that, The hot-drying zone is located above the process section, or the hot-drying zone is located outside the process section.

5. The strip steel production line as described in claim 1, characterized in that, The process tanks include an electroplating tank, a fluxing tank, and a passivation tank.

6. A method for producing strip steel, characterized in that, include: The strip steel to be processed passes through several process sections set up on the production channel in sequence to carry out corresponding process processing; The strip steel passing through the hot drying zone above the production channel is dried by a heat source set on the production channel; the heat source is slidably installed above the production channel; the process section includes an electroplating process section, a fluxing process section, and a passivation process section. The process section is provided with a process tank, and a tank cover is provided above the process tank. The hot drying zone is located below the tank cover, and the heat source is installed at the lower end of the tank cover. A slide rail connecting each process section is installed above the production channel, and the heat source is slidably connected to the slide rail.

7. The strip steel production method as described in claim 6, characterized in that, Also includes: Identify potential hazards along the production line; The potential hazard point is the location where the defect in the strip steel occurs; A heat-drying zone is defined above the potential hazard point; The heat source is installed in the hot drying zone.

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