A production method of bimetallic nano-graphene composite zinc-coated steel

Abstract

The application discloses a production method of bimetallic nanometer graphene composite zinc-coated steel, and belongs to the technical field of zinc-coated steel production. In order to improve the performance of zinc-coated steel material, pure zinc is placed in a furnace for heating to make the zinc melt to obtain zinc liquid, graphene is added into the zinc liquid according to a mass ratio, the mixture is stirred uniformly, and then the mixture is placed in an up-drawing continuous casting machine to draw graphene zinc rod standard sections through the up-drawing continuous casting method, and the graphene zinc rod standard sections are cooled to form graphene zinc rod standard sections; the graphene zinc rod standard sections are straightened by using straightening equipment, and then are cleaned through ultrasonic waves to obtain pretreated graphene zinc rod standard sections; a steel strip is straightened by using a straightening machine, the straightened steel strip is subjected to descaling treatment, and the steel strip is cleaned, dried and then obtained as pretreated steel strip; the pretreated steel strip and the pretreated graphene zinc rod standard sections are simultaneously conveyed into an extruder for extrusion treatment to obtain bimetallic nanometer graphene composite zinc-coated steel. The bimetallic nanometer graphene composite zinc-coated steel has high conductivity and corrosion resistance.

Description

Technical Field

[0001] This invention belongs to the field of zinc-clad steel production technology, specifically relating to a production method of bimetallic nano-graphene composite zinc-clad steel. Background Technology

[0002] With the large-scale construction of projects such as communications, urban power facilities, petrochemicals, railways, building infrastructure, and large steel equipment, the lifespan of grounding materials needs to be consistent with the design lifespan of the ground structure. Existing grounding materials generally have a lifespan of 10-15 years, requiring replacement and renovation upon expiration, resulting in a significant waste of manpower and resources. Currently, the most common bimetallic composite grounding materials in the domestic industry are zinc-clad steel materials, and their production processes mostly employ electroplating and casting / rolling processes. Products produced using these processes often suffer from drawbacks such as uneven coating, insufficient length, and easy breakage of the wires during drawing. Summary of the Invention

[0003] The problem this invention aims to solve is to improve the performance of zinc-clad steel materials, and proposes a production method for bimetallic nano-graphene composite zinc-clad steel.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A method for producing bimetallic nano-graphene composite zinc-clad steel includes the following steps:

[0006] S1. Using induction heating, pure zinc is placed in a furnace and heated to melt the zinc, yielding molten zinc for later use;

[0007] S2. Add graphene to the zinc liquid obtained in step S1 at a certain mass ratio, stir evenly to obtain a mixed solution, and set aside for use;

[0008] S3. Place the mixture obtained in step S2 into an upward continuous casting machine, and pull out the graphene zinc rod standard profile by the upward continuous casting method. Cool to form the graphene zinc rod standard profile. Straighten the obtained graphene zinc rod standard profile using a straightening device, and then clean it with ultrasonic waves to obtain the pretreated graphene zinc rod standard profile for later use.

[0009] S4. The steel strip is straightened using a straightening machine. The straightened steel strip is then descaled, cleaned, and dried to obtain the pretreated steel strip.

[0010] S5. The pretreated steel strip and the pretreated graphene zinc rod standard profile obtained in step S4 are simultaneously fed into an extruder for extrusion processing to obtain bimetallic nano-graphene composite zinc-clad steel.

[0011] Furthermore, the heating temperature in step S1 is 460-480℃, and the heating time is 1-2 hours.

[0012] Furthermore, the mass ratio in step S2 is 0.3-0.35:1.

[0013] Furthermore, the graphene described in step S2 has a size of 1-40 µm.

[0014] Furthermore, in step S3, the diameter of the standard graphite zinc rod profile is φ8-12mm.

[0015] Furthermore, the steel strip mentioned in step S4 is of type Q195, and the steel strip has a width of 20-40mm and a thickness of 5-10mm. After pretreatment, the steel strip conforms to the extrusion die size of the extrusion press.

[0016] Furthermore, in step S5, the extruder uses the pressure generated by the extrusion to extrude the graphene zinc micro melt into the low-pressure cavity of the steel strip, uses the mold cavity to cover the steel strip, and uses a traction machine to pull the material out of the mold for cooling to form a bimetallic nano-graphene composite zinc-coated steel.

[0017] Furthermore, the extruder has a power of 350-630KW.

[0018] The beneficial effects of this invention are:

[0019] The present invention discloses a method for producing bimetallic nano-graphene composite zinc-clad steel, wherein the thickness of the finished graphite zinc coating layer is 3-5 mm, the bonding layer of the extruded composite material is 20-30 micrometers, and the tensile strength of the finished product is 300-500 N / mm² during strength testing. 2 The contact resistance between the steel strip and the graphite zinc layer is 0.5-0.3mΩ.

[0020] The present invention discloses a production method for a bimetallic nano-graphene composite zinc-clad steel, which has no environmental pollution during the production process and produces a product with strong mechanical properties, high conductivity, corrosion resistance, long service life, and saves precious metal materials. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described specific embodiments are merely a part of the embodiments of the invention, and not all of them. The specific embodiments of the invention described and shown herein can generally be arranged and designed in various different configurations, and the invention may also have other embodiments.

[0022] Therefore, the following detailed description of specific embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely to illustrate selected specific embodiments of the invention. All other specific embodiments obtained by those skilled in the art based on these specific embodiments without inventive effort are within the scope of protection of this invention. Specific implementation method one:

[0024] A method for producing bimetallic nano-graphene composite zinc-clad steel includes the following steps:

[0025] S1. Using induction heating, pure zinc is placed in a furnace and heated to melt the zinc, yielding molten zinc for later use;

[0026] Furthermore, the heating temperature in step S1 is 460℃, and the heating time is 1 hour;

[0027] S2. Add graphene to the zinc liquid obtained in step S1 at a certain mass ratio, stir evenly to obtain a mixed solution, and set aside for use;

[0028] Furthermore, the graphene in step S2 has a size of 10µm;

[0029] S3. Place the mixture obtained in step S2 into an upward continuous casting machine, and pull out the graphene zinc rod standard profile by the upward continuous casting method. Cool to form the graphene zinc rod standard profile. Straighten the obtained graphene zinc rod standard profile using a straightening device, and then clean it with ultrasonic waves to obtain the pretreated graphene zinc rod standard profile for later use.

[0030] Furthermore, in step S3, the diameter of the standard graphite zinc rod profile is φ8mm;

[0031] S4. The steel strip is straightened using a straightening machine. The straightened steel strip is then descaled, cleaned, and dried to obtain the pretreated steel strip.

[0032] Furthermore, the steel strip mentioned in step S4 is of type Q195, and the steel strip has a width of 20mm and a thickness of 5mm. After pretreatment, the steel strip conforms to the extrusion die size of the extrusion press.

[0033] S5. The pretreated steel strip and the pretreated graphene zinc rod standard profile obtained in step S4 are simultaneously fed into an extrusion press for extrusion processing to obtain bimetallic nano-graphene composite zinc-clad steel.

[0034] Furthermore, in step S5, the extruder uses the pressure generated by the extrusion to extrude the graphene zinc micro melt into the low-pressure cavity of the steel strip, uses the mold cavity to cover the steel strip, and uses the traction machine to pull the material out of the mold for cooling to form a bimetallic nano-graphene composite zinc-coated steel.

[0035] Furthermore, the extruder has a power of 350KW. Specific Implementation Method Two:

[0037] A method for producing bimetallic nano-graphene composite zinc-clad steel includes the following steps:

[0038] S1. Using induction heating, pure zinc is placed in a furnace and heated to melt the zinc, yielding molten zinc for later use;

[0039] Furthermore, the heating temperature in step S1 is 460℃, and the heating time is 2 hours;

[0040] S2. Add graphene to the zinc liquid obtained in step S1 at a certain mass ratio, stir evenly to obtain a mixed solution, and set aside for use;

[0041] Furthermore, the graphene in step S2 has a size of 10µm;

[0042] S3. Place the mixture obtained in step S2 into an upward continuous casting machine, and pull out the graphene zinc rod standard profile by the upward continuous casting method. Cool to form the graphene zinc rod standard profile. Straighten the obtained graphene zinc rod standard profile using a straightening device, and then clean it with ultrasonic waves to obtain the pretreated graphene zinc rod standard profile for later use.

[0043] Furthermore, in step S3, the diameter of the standard graphite zinc rod profile is φ12mm;

[0044] S4. The steel strip is straightened using a straightening machine. The straightened steel strip is then descaled, cleaned, and dried to obtain the pretreated steel strip.

[0045] Furthermore, the steel strip mentioned in step S4 is of type Q195, and the steel strip has a width of 30mm and a thickness of 5mm. After pretreatment, the steel strip conforms to the extrusion die size of the extrusion press.

[0046] S5. The pretreated steel strip and the pretreated graphene zinc rod standard profile obtained in step S4 are simultaneously fed into an extrusion press for extrusion processing to obtain bimetallic nano-graphene composite zinc-clad steel.

[0047] Furthermore, in step S5, the extruder uses the pressure generated by the extrusion to extrude the graphene zinc micro melt into the low-pressure cavity of the steel strip, uses the mold cavity to cover the steel strip, and uses the traction machine to pull the material out of the mold for cooling to form a bimetallic nano-graphene composite zinc-coated steel.

[0048] Furthermore, the extruder has a power of 450KW. Specific implementation method three:

[0050] A method for producing bimetallic nano-graphene composite zinc-clad steel includes the following steps:

[0051] S1. Using induction heating, pure zinc is placed in a furnace and heated to melt the zinc, yielding molten zinc for later use;

[0052] Furthermore, the heating temperature in step S1 is 480℃, and the heating time is 1 hour;

[0053] S2. Add graphene to the zinc liquid obtained in step S1 at a certain mass ratio, stir evenly to obtain a mixed solution, and set aside for use;

[0054] Furthermore, the graphene in step S2 has a size of 20µm;

[0055] S3. Place the mixture obtained in step S2 into an upward continuous casting machine, and pull out the graphene zinc rod standard profile by the upward continuous casting method. Cool to form the graphene zinc rod standard profile. Straighten the obtained graphene zinc rod standard profile using a straightening device, and then clean it with ultrasonic waves to obtain the pretreated graphene zinc rod standard profile for later use.

[0056] Furthermore, in step S3, the diameter of the standard graphite zinc rod profile is φ10mm;

[0057] S4. The steel strip is straightened using a straightening machine. The straightened steel strip is then descaled, cleaned, and dried to obtain the pretreated steel strip.

[0058] Furthermore, the steel strip mentioned in step S4 is of type Q195, and the steel strip has a width of 40mm and a thickness of 10mm. After pretreatment, the steel strip conforms to the extrusion die size of the extrusion press.

[0059] S5. The pretreated steel strip and the pretreated graphene zinc rod standard profile obtained in step S4 are simultaneously fed into an extrusion press for extrusion processing to obtain bimetallic nano-graphene composite zinc-clad steel.

[0060] Furthermore, in step S5, the extruder uses the pressure generated by the extrusion to extrude the graphene zinc micro melt into the low-pressure cavity of the steel strip, uses the mold cavity to cover the steel strip, and uses the traction machine to pull the material out of the mold for cooling to form a bimetallic nano-graphene composite zinc-coated steel.

[0061] Furthermore, the extruder has a power of 630KW. Specific implementation method four:

[0063] A method for producing bimetallic nano-graphene composite zinc-clad steel includes the following steps:

[0064] S1. Using induction heating, pure zinc is placed in a furnace and heated to melt the zinc, yielding molten zinc for later use;

[0065] Furthermore, the heating temperature in step S1 is 470℃, and the heating time is 1 hour;

[0066] S2. Add graphene to the zinc liquid obtained in step S1 at a certain mass ratio, stir evenly to obtain a mixed solution, and set aside for use;

[0067] Furthermore, the graphene described in step S2 has a size of 5µm;

[0068] S3. Place the mixture obtained in step S2 into an upward continuous casting machine, and pull out the graphene zinc rod standard profile by the upward continuous casting method. Cool to form the graphene zinc rod standard profile. Straighten the obtained graphene zinc rod standard profile using a straightening device, and then clean it with ultrasonic waves to obtain the pretreated graphene zinc rod standard profile for later use.

[0069] Furthermore, in step S3, the diameter of the standard graphite zinc rod profile is φ12mm;

[0070] S4. The steel strip is straightened using a straightening machine. The straightened steel strip is then descaled, cleaned, and dried to obtain the pretreated steel strip.

[0071] Furthermore, the steel strip mentioned in step S4 is of type Q195, and the steel strip has a width of 20mm and a thickness of 10mm. After pretreatment, the steel strip conforms to the extrusion die size of the extrusion press.

[0072] S5. The pretreated steel strip and the pretreated graphene zinc rod standard profile obtained in step S4 are simultaneously fed into an extrusion press for extrusion processing to obtain bimetallic nano-graphene composite zinc-clad steel.

[0073] Furthermore, in step S5, the extruder uses the pressure generated by the extrusion to extrude the graphene zinc micro melt into the low-pressure cavity of the steel strip, uses the mold cavity to cover the steel strip, and uses the traction machine to pull the material out of the mold for cooling to form a bimetallic nano-graphene composite zinc-coated steel.

[0074] Furthermore, the extruder has a power of 450KW. Specific implementation method five:

[0076] A method for producing bimetallic nano-graphene composite zinc-clad steel includes the following steps:

[0077] S1. Using induction heating, pure zinc is placed in a furnace and heated to melt the zinc, yielding molten zinc for later use;

[0078] Furthermore, the heating temperature in step S1 is 460℃, and the heating time is 1 hour;

[0079] S2. Add graphene to the zinc liquid obtained in step S1 at a certain mass ratio, stir evenly to obtain a mixed solution, and set aside for use;

[0080] Furthermore, the graphene described in step S2 has a size of 40µm;

[0081] S3. Place the mixture obtained in step S2 into an upward continuous casting machine, and pull out the graphene zinc rod standard profile by the upward continuous casting method. Cool to form the graphene zinc rod standard profile. Straighten the obtained graphene zinc rod standard profile using a straightening device, and then clean it with ultrasonic waves to obtain the pretreated graphene zinc rod standard profile for later use.

[0082] Furthermore, in step S3, the diameter of the standard graphite zinc rod profile is φ8mm;

[0083] S4. The steel strip is straightened using a straightening machine. The straightened steel strip is then descaled, cleaned, and dried to obtain the pretreated steel strip.

[0084] Furthermore, the steel strip mentioned in step S4 is of type Q195, and the steel strip has a width of 30mm and a thickness of 10mm. After pretreatment, the steel strip conforms to the extrusion die size of the extrusion press.

[0085] S5. The pretreated steel strip and the pretreated graphene zinc rod standard profile obtained in step S4 are simultaneously fed into an extrusion press for extrusion processing to obtain bimetallic nano-graphene composite zinc-clad steel.

[0086] Furthermore, in step S5, the extruder uses the pressure generated by the extrusion to extrude the graphene zinc micro melt into the low-pressure cavity of the steel strip, uses the mold cavity to cover the steel strip, and uses the traction machine to pull the material out of the mold for cooling to form a bimetallic nano-graphene composite zinc-coated steel.

[0087] Furthermore, the extruder has a power of 550KW. Specific implementation method six:

[0089] A method for producing bimetallic nano-graphene composite zinc-clad steel includes the following steps:

[0090] S1. Using induction heating, pure zinc is placed in a furnace and heated to melt the zinc, yielding molten zinc for later use;

[0091] Furthermore, the heating temperature in step S1 is 460℃, and the heating time is 1 hour;

[0092] S2. Add graphene to the zinc liquid obtained in step S1 at a certain mass ratio, stir evenly to obtain a mixed solution, and set aside for use;

[0093] Furthermore, the graphene described in step S2 has a size of 5µm;

[0094] S3. Place the mixture obtained in step S2 into an upward continuous casting machine, and pull out the graphene zinc rod standard profile by the upward continuous casting method. Cool to form the graphene zinc rod standard profile. Straighten the obtained graphene zinc rod standard profile using a straightening device, and then clean it with ultrasonic waves to obtain the pretreated graphene zinc rod standard profile for later use.

[0095] Furthermore, in step S3, the diameter of the standard graphite zinc rod profile is φ9mm;

[0096] S4. The steel strip is straightened using a straightening machine. The straightened steel strip is then descaled, cleaned, and dried to obtain the pretreated steel strip.

[0097] Furthermore, the steel strip mentioned in step S4 is of type Q195, and the steel strip has a width of 20mm and a thickness of 5mm. After pretreatment, the steel strip conforms to the extrusion die size of the extrusion press.

[0098] S5. The pretreated steel strip and the pretreated graphene zinc rod standard profile obtained in step S4 are simultaneously fed into an extrusion press for extrusion processing to obtain bimetallic nano-graphene composite zinc-clad steel.

[0099] Furthermore, in step S5, the extruder uses the pressure generated by the extrusion to extrude the graphene zinc micro melt into the low-pressure cavity of the steel strip, uses the mold cavity to cover the steel strip, and uses the traction machine to pull the material out of the mold for cooling to form a bimetallic nano-graphene composite zinc-coated steel.

[0100] Furthermore, the extruder has a power of 350KW.

[0101] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0102] Although this application has been described above with reference to specific embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of this application. In particular, as long as there is no structural conflict, the features in the specific embodiments disclosed in this application can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, this application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A method for producing bimetallic nano-graphene composite zinc-coated steel, characterized by, It comprises the following steps: S1. Using induction heating method, pure zinc is heated in a furnace to melt the zinc, obtaining zinc liquid, for use; S2. According to a certain mass ratio, graphene is added to the zinc liquid obtained in step S1, and after stirring uniformly, a mixed liquid is obtained, for use; The mass ratio of step S2 is 0.3-0.35:1; The size of the graphene in step S2 is 1-40µm; S3. The mixed liquid obtained in step S2 is placed in an up-drawing continuous casting machine, and graphene zinc rod standard section is drawn out by up-drawing continuous casting method, and cooled to form graphene zinc rod standard section. The graphene zinc rod standard section obtained is straightened by straightening equipment, and then cleaned by ultrasonic wave, to obtain pretreated graphene zinc rod standard section, for use; S4. The steel strip is straightened by a straightening machine, and the straightened steel strip is subjected to descaling treatment, and after cleaning, drying, and obtaining pretreated steel strip; S5. The pretreated steel strip obtained in step S4 and the pretreated graphene zinc rod standard section are simultaneously fed into an extruder for extrusion treatment, to obtain bimetallic nanometer graphene composite zinc-coated steel; The thickness of the finished graphite zinc coating is 3-5 mm, the combined layer of the composite material extruded is 20-30 microns, and the tensile strength of the finished product is 300-500 N / mm 2 when strength testing, and the contact resistance between the steel strip and the graphite zinc layer is 0.5-0.3 mΩ.

2. The method for producing bimetallic nano-graphene composite zinc-coated steel according to claim 1, characterized in that, The heating temperature in step S1 is 460-480℃, and the heating time is 1-2h.

3. The method of claim 2, wherein the zinc-coated steel is produced by a double metal nanographene composite zinc-coated steel production method, characterized by, The diameter of the graphene zinc rod standard section in step S3 is φ8-12mm.

4. The method for producing bimetallic nano-graphene composite zinc-coated steel according to claim 3, characterized in that, The model of the steel strip in step S4 is Q195, and the size of the steel strip is width 20-40mm, thickness 5-10mm. The pretreated steel strip meets the size of the extrusion die of the extruder.

5. The method of claim 4, wherein the zinc-coated steel is produced by a double metal nanographene composite zinc-coated steel production method, characterized by, In step S5, the extruder uses the pressure formed by extrusion to extrude the graphene zinc micro-melt into the low-pressure cavity of the steel strip, and uses the die cavity to coat the steel strip. The material is pulled out of the die by a traction machine, and cooled to form bimetallic nanometer graphene composite zinc-coated steel.

6. The method of claim 5, wherein the zinc-coated steel is produced by a double metal nanographene composite zinc-coated steel production method, characterized by, The power of the extruder is 350-630KW.