CN114622201B - Graphene nano composite metal section bar and preparation method thereof - Google Patents
Graphene nano composite metal section bar and preparation method thereof Download PDFInfo
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- CN114622201B CN114622201B CN202011431149.7A CN202011431149A CN114622201B CN 114622201 B CN114622201 B CN 114622201B CN 202011431149 A CN202011431149 A CN 202011431149A CN 114622201 B CN114622201 B CN 114622201B
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- 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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/44—Methods of heating in heat-treatment baths
- C21D1/46—Salt baths
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Crystallography & Structural Chemistry (AREA)
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Abstract
A metal section compounded with a nanoscale layer belongs to the technical field of nano manufacturing, a layer of nanoscale graphene is compounded on the surface of the metal section, and the metal section and the graphene layer are of an integral structure; the metal section comprises a metal plate, a bar, a special-shaped metal material and a manufactured mechanical part. The metal comprises 20Cr, GCr15, 42CrMO, 38CrMOAl. The graphene layer is a 20-70 nanometer graphene layer, and the external dimension is 4-10 mu m. The metal section bar of the invention can be used for manufacturing new armor piercing bullets, armor plates on tanks, armor plates on armed helicopters, bearings and the like, and various wear-resistant parts. Has wide application prospect in the fields of military products and civil products. In addition, in the aspect of optical instruments, the tank range finder can be disabled, and the laser guided missile and shell can be disabled, so that the method has popularization value.
Description
Technical Field
The invention belongs to the technical field of nano manufacturing, and particularly relates to a method for manufacturing super nano composite metal by using graphene.
Background
Graphene is a nanostructured carbon with exceptional properties. Since its properties are closely related to the shape and granularity of the body structure. Therefore, the method is paid attention to the experts and scholars in various related fields, and is widely applied to occasions where the performance of the method can be directly used.
But their ultra-high hardness (harder than diamond) and superior optical properties have not been used and exploited in the metal field. The reason for this is that the metal and graphene are not fused, so they cannot be smelted into nanocomposite metals.
However, through the research and experiment of our subject group for many years, a process and auxiliary materials for solving the problem of the fusion between the graphene super nanocomposite steel and the nanocomposite aluminum are found, and the graphene super nanocomposite steel and the nanocomposite aluminum are successfully manufactured.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a metal section compounded with a nanoscale layer;
another object of the present invention is to provide a method for preparing a metal profile compounded with a nanoscale layer. The metal section bar of the invention can be used for manufacturing new armor piercing bullets, armor plates on tanks, armor plates on armed helicopters, bearings and the like, and various wear-resistant parts. Has wide application prospect in the fields of military products and civil products. In addition, in the aspect of optical instruments, the tank range finder can be disabled, and the laser guided missile and shell can be disabled, so that the method has popularization value.
The technical scheme adopted is as follows:
a metal section compounded with a nanoscale layer is characterized in that a layer of nanoscale graphene is compounded on the surface of the metal section, and the metal section and the graphene layer form an integral structure;
the metal section comprises a metal plate, a bar, a special-shaped metal material and a manufactured mechanical part.
The metal comprises 20Cr, GCr15, 42CrMO, 38CrMOAl.
The graphene layer is a 20-70 nanometer graphene layer, and the external dimension is 4-10 mu m.
The preparation method of the metal section compounded with the nanoscale layer comprises the following steps:
1. cleaning and wiping the surface of the metal section bar to be compounded with the graphene for standby;
2. uniformly mixing graphene, diamond powder with the granularity of 100Nm and a No. 2 permeation assisting agent for standby according to the weight ratio of 1:0.3-0.7:0.04-0.06 (the No. 2 permeation assisting agent is a carbon nano tube with the diameter of 10Nm and the length of 5 mu m);
3. putting the mixture prepared in the step (2) into liquid oil (oil is No. 20 lubricating oil, the weight is determined according to the size of a workpiece, and the graphene and the permeation assisting agent are diluted until the graphene and the permeation assisting agent can be coated on the workpiece) and uniformly stirring to prepare colloid-like bodies for later use;
4. uniformly placing a layer of diamond micro powder with the diameter of 0.3-0.5 mu m, which is 2 mm thick, at the bottom of the container;
5. placing a metal profile (workpiece or sample) coated with a colloid into a container;
6. spreading a layer of graphene with the thickness of 8-15 mm on the surface of a metal section (workpiece or sample);
7. coating the container with diamond powder with the diameter of 0.5-0.9 microns on the outermost layer, and vibrating uniformly;
8. capping and sealing the container, and placing the container into an electric furnace;
9. heating the electric furnace to 800-1500 ℃ and starting to count the temperature;
10. when the furnace temperature reaches the selected temperature, the temperature is set at 800-1500 ℃, and the power is cut off for cooling after heat preservation for 5-10 hours;
11. after the workpiece reaches room temperature, taking out the container, and putting the container into a quenching furnace to start heating;
12. quenching with 10% saline water to reach quenching temperature and preserving heat for 5-20 min;
13. quenching and tempering at 180 ℃ for 0.5-1 hour.
The invention has the advantages and effects that:
by examining the pattern we found that:
(1) We used tests made with four steels (40 Cr, 42CrMO, 38CrMOAl, GCr 15) under the same formulation and process conditions, with little variation. The hardness of the 4 steels is between 72 and 79 degrees HRC. Exceeding the hardness of the existing various metal materials.
(2) The optical reflection performance of the composite metal material is suddenly changed, the incident angle is not equal to the reflection angle, the incident line and the reflection line are suddenly changed according to the traditional law on two sides of the normal line respectively, and the test picture is shown in detail.
In view of the breakthrough in the performance, the technology has great breakthrough in military equipment, and can be used for manufacturing new armor-piercing bullets, armor plates on tanks, armor plates on armed helicopters, bearings and the like, and various wear-resistant parts. The method is not enumerated in application, but the tank rangefinder fails in terms of optical instruments. The laser guided missile and shell fail, and have popularization value.
Drawings
FIG. 1 is a photograph of an abrupt change test of optical reflection performance of a composite metal material according to the present invention.
FIG. 2 is a photograph II of an abrupt change test of optical reflection performance of a composite metal material according to the present invention.
FIG. 3 is a photograph III of an abrupt change test of optical reflection performance of a composite metal material according to the present invention.
Fig. 4 is a graph iv of an optical reflection performance mutation test of the composite metal material of the present invention.
Detailed Description
Embodiment 1 is a graphene nanocomposite metal section, wherein the metal section is a 40Cr metal section, and is characterized in that a layer of 20 nm graphene is composited on the surface of the metal 40Cr metal section, and the graphene layer and the 40Cr metal section are an integral structure.
Embodiment 2 is a graphene nanocomposite metal section, wherein the metal section is a 42CrMO metal section, and is characterized in that a layer of 46 nanometer graphene is composited on the surface of the metal 42CrMO metal section, and the graphene layer and the 42CrMO metal section are in an integral structure.
Example 3
The graphene nano composite metal section is a GCr15 metal section, and is characterized in that a layer of 70 nano graphene is compounded on the surface of the GCr15 metal section, and the graphene layer and the GC metal section are of an integral structure.
Example 4
The preparation method of the metal section compounded with the nanoscale layer comprises the following steps:
(1) Cleaning and wiping the surface of the metal section to be compounded with the graphene layer for standby;
(2) Taking nano-grade graphene, diamond powder with the granularity of 100Nm and a number 2 infiltration assisting agent nano carbon tube according to the weight ratio of 1:0.5:0.05, and uniformly mixing for later use;
(3) Putting the mixture obtained in the step (2) into liquid oil (oil is No. 20 lubricating oil, the weight is determined according to the size of a workpiece, and the graphene and the permeation assisting agent are diluted until the graphene and the permeation assisting agent can be coated on the workpiece) and uniformly stirring to prepare colloid-like bodies for later use;
(4) Uniformly placing a layer of diamond powder with the diameter of 0.5 micrometer and the thickness of 2 millimeters at the bottom of the container;
(5) Placing the metal profile (workpiece or specimen) into a container;
(6) Sprinkling a layer of nano-scale graphene with the thickness of 10 mm on the surface of the metal section bar;
(7) Coating the container with diamond powder with diameter of 0.5 μm on the outermost layer, and vibrating uniformly; (8) capping, sealing and placing the container into an electric furnace;
(9) Heating the electric furnace to 1500 ℃ and starting to time and warm;
(10) When the furnace temperature reaches 800-1500 ℃, fixing the temperature, keeping the temperature for 10 hours, and then powering off and cooling;
(11) After the workpiece reaches room temperature, taking out the container, and putting the container into an ocean stove to start heating;
(12) Quenching with 10% saline water to reach quenching temperature and preserving heat for 5-20 min;
(13) Quenching and tempering at 180 deg.c for 1 hr.
Claims (6)
1. The preparation method of the metal section compounded with the nanoscale layer is characterized by comprising the following steps of:
1) Cleaning and wiping the surface of the metal section bar;
2) Uniformly mixing graphene, diamond powder with the granularity of 100nm and a No. 2 permeation assisting agent nano carbon tube according to the weight ratio of 1:0.3-0.7:0.04-0.06 for standby;
3) Placing the mixture prepared in the step 2) into liquid oil, and uniformly stirring to prepare colloid-like bodies for later use; the oil is No. 20 lubricating oil, and the weight is determined according to the size of a workpiece, so long as graphene and No. 2 permeation assisting agent are diluted to be coated on the workpiece;
4) Uniformly placing a layer of diamond powder with the diameter of 0.3-0.5 micrometers, which is 2 mm thick, at the bottom of the container;
5) Placing the metal profile into a container;
6) Spreading a layer of graphene with the thickness of 8-15 mm on the surface of the metal section;
7) Coating the outermost layer with diamond micropowder as a permeation assisting agent No. 3 in a container, and vibrating uniformly;
8) Capping and sealing the container, and placing the container into an electric furnace;
9) Heating the electric furnace to 800-1500 ℃ and starting to count the time and temperature;
10 When the furnace temperature reaches 800-1500 ℃, the temperature is fixed, and the power is cut off for cooling after heat preservation for 5-10 hours;
11 After the workpiece reaches room temperature, taking out the container, and putting the container into an ocean stove to start heating;
12 Quenching with 10% saline water to reach quenching temperature and preserving heat for 5-20 min;
13 Quenching and tempering at 180 ℃ for 0.5-1 hour.
2. The method for preparing the diamond section compounded with the nanoscale layer according to claim 1, which is characterized in that: in the step 2), the weight ratio of the graphene, the diamond powder with the granularity of 100nm and the No. 2 permeation enhancer is 1:0.5:0.05;
in the step 4), a layer of diamond powder with the diameter of 0.5 micrometer and the thickness of 2 millimeters is uniformly placed at the bottom of the container;
in the step 6), a layer of 10 mm graphene is scattered on the surface of the metal section.
3. The metal profile with the composite nanoscale layer obtained by the preparation method of the metal profile with the composite nanoscale layer as claimed in claim 1, wherein the surface of the metal profile is composited with a layer of nanoscale graphene, and the metal profile and the graphene layer are of an integral structure.
4. A metal profile with composite nanoscale layers obtained by the method according to claim 3, characterized in that it comprises a metal sheet, a bar or a manufactured and shaped mechanical metal part.
5. A metal profile with composite nanoscale layer obtained by the method according to claim 3, characterized in that the metal comprises 40Cr, 42CrMO, GCr or 38CrMOAl profile.
6. The metal profile with the composite nanoscale layer obtained by the preparation method of the metal profile with the composite nanoscale layer according to claim 3, wherein the composite nanoscale layer is a 20-70 nanometer graphene layer, and the external dimension is 4-10 μm.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469150A (en) * | 2013-08-23 | 2013-12-25 | 杨树桐 | Method for permeating diamond into iron steel material by taking nano-structured carbon as permeation-promoter |
| CN105385983A (en) * | 2015-11-09 | 2016-03-09 | 中国矿业大学 | Hard coating preparation method with heat diffusion of carbon nanomaterials as pretreatment |
| CN109847736A (en) * | 2018-12-24 | 2019-06-07 | 柯良节 | A kind of graphene composite material and the preparation method and application thereof |
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| CN113249680B (en) * | 2021-05-13 | 2022-01-11 | 江苏新合益机械有限公司 | Surface treatment method of high-strength corrosion-resistant precision piston rod |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469150A (en) * | 2013-08-23 | 2013-12-25 | 杨树桐 | Method for permeating diamond into iron steel material by taking nano-structured carbon as permeation-promoter |
| CN105385983A (en) * | 2015-11-09 | 2016-03-09 | 中国矿业大学 | Hard coating preparation method with heat diffusion of carbon nanomaterials as pretreatment |
| WO2017080079A1 (en) * | 2015-11-09 | 2017-05-18 | 中国矿业大学 | Hard coating preparation method using thermal diffusion of nanocarbon material as pretreatment |
| CN109847736A (en) * | 2018-12-24 | 2019-06-07 | 柯良节 | A kind of graphene composite material and the preparation method and application thereof |
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