CN113926962B - Production method of high-strength cement nails - Google Patents
Production method of high-strength cement nails Download PDFInfo
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- CN113926962B CN113926962B CN202111191745.7A CN202111191745A CN113926962B CN 113926962 B CN113926962 B CN 113926962B CN 202111191745 A CN202111191745 A CN 202111191745A CN 113926962 B CN113926962 B CN 113926962B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/18—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16
- B21G3/20—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16 from wire of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C43/00—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass
- B21C43/02—Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass combined with or specially adapted for use in connection with drawing or winding machines or apparatus
- B21C43/04—Devices for de-scaling wire or like flexible work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/18—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16
- B21G3/28—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16 by forging or pressing
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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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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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
- C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
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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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
- C23C8/52—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions more than one element being applied in one step
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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
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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Abstract
The invention discloses a production method of a high-strength cement nail, which comprises the following production steps: pretreatment of raw materials, wire drawing of the raw materials, shaping of cement nails, quenching of the cement nails, tempering of the cement nails, surface treatment and detection of the cement nails. The high-strength cement nail production method is provided with a treating agent, wherein the treating agent is a mixture of methanol, dimethylbenzene and water, the adding of the treating agent can increase the hydrogenation and carburization of the cement nail when the cement nail is tempered in a mesh belt tempering furnace, the water of the treating agent promotes the hydrogenation of the cement nail, the dimethylbenzene of the treating agent promotes carburization of the cement nail, the cement nail is further modified on the basis of tempering, the integral strength and structural compactness of the cement nail are increased, the cement nail is broken in the using process, the quality of the cement nail is improved, the cement nail can be blocked in vacuum through the combustion of the methanol, the damage to the cement nail by a tempering process is reduced, and the yield of the cement nail is improved.
Description
Technical Field
The invention relates to the technical field of cement nails, in particular to a production method of high-strength cement nails.
Background
The cement nail, commonly called steel nail, is one kind of nail, its function is to nail on some other harder nails and not on the object, because the material has very big difference with ordinary nail, it is to be the special nail, the nail pole of cement nail has the slide bar, straight line, the twill, spiral, many kinds of common straight line or slide bar such as bamboo joint, it is general, it is on the wall body of concrete to have good penetrability, it is applied to industry and house and adorn in general, along with the development and the broad-spectrum of the modern industry of china, the demand on cement nail is gradually increased, the demand on the performance of cement nail is higher and higher, especially on the hardness of cement nail, put forward higher demand, and the cement nail technology of current is to the cement nail semi-manufactured directly by the nail machine, high temperature quenching, low temperature tempering, lead to the hardness of cement nail to be unable to go up, make cement nail easily break in the course of using, the whole quality of cement nail is poor.
We have therefore proposed a method of producing high strength cement nails in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a high-strength cement nail production method, which aims to solve the problems that in the existing cement nail technology in the market, which is proposed by the background technology, a plurality of pairs of cement nail semi-finished products directly manufactured by a nail manufacturing machine are subjected to high-temperature quenching and low-temperature tempering, so that the hardness of cement nails cannot be improved, the cement nails cannot meet the qualified standard, the cement nails are easy to break in the using process, and the overall quality of the cement nails is poor.
In order to achieve the above purpose, the present invention provides the following technical solutions: the production method of the high-strength cement nail comprises the following production steps:
(1) Pretreatment of raw materials: the raw materials are sequentially subjected to rust removal, acid washing, water washing and drying, and the treated raw materials are stacked together for standby.
(2) Drawing raw materials: and (3) carrying out wire drawing treatment on the raw material treated in the step (1) by using a wire drawing machine to prepare the metal wire with the specific specification.
(3) Shaping of cement nails: and (3) processing the metal wire in the step (2) by using a nailing machine, and cutting and extruding the long metal wire into a cement nail with proper specification to prepare a cement nail semi-finished product.
(4) Quenching of the cement nails: placing the semi-finished cement nails in the step (3) into a mesh belt type vacuum quenching furnace for quenching treatment, placing the quenched cement nails into an oil groove of a mesh belt type lifter, immersing the cement nails in oil, placing the immersed cement nails into a mesh belt type cleaning machine for cleaning the cement nails, wherein the lifting speed of the mesh belt type lifter is 48-50m/h, the temperature of quenching oil in the oil groove of the mesh belt type lifter is 70-100 ℃, the cleaning mode of the mesh belt type cleaning machine is spray cleaning, the cleaning time is 10-15min, and the cleaning temperature is 50-60 ℃.
(5) Tempering of the cement nails: placing the cement nails cleaned in the step (4) into a mesh belt tempering furnace, adding a treating agent, tempering the cement nails to prepare cement nail finished products, wherein the tempering temperature of the mesh belt tempering furnace is 180-200 ℃, the tempering speed of the mesh belt tempering furnace is 8m/h, the treating agent is methanol, dimethylbenzene and water, and the mass ratio of each component of the treating agent is 200:1:10.
(6) Surface treatment: and (3) cleaning the finished cement nails in the step (5) to remove dust and impurities on the surface.
(7) And (3) detecting cement nails: selecting two groups of samples from the cement nails cleaned in the step (6), placing one group of samples into a toughness tester, bending the cement nails, performing toughness test, performing hardness test on the other group of samples by using a Rockwell hardness tester, judging the quality of the cement nails in the batch, wherein the bending standard is bending 60-90 degrees, the cement nails are continuously qualified, and the hardness strength is more than 52-55 HRC.
(8) Packaging: and (3) after the sample is detected to be qualified, bagging and packaging the cement nails cleaned in the step (7).
Preferably, the raw material in the step (1) is a medium carbon steel wire rod, the rust removal is mechanical rust removal, and the drying is wind blowing and airing.
Preferably, the wire drawing machine in the step (2) adopts a medium carbon steel roller die wire drawing machine.
Preferably, the nailing machine in the step (3) adopts a full-automatic nailing machine.
Preferably, the quenching temperature of the mesh belt type vacuum quenching furnace in the step (4) is 880-900 ℃, and the mesh belt travelling speed of the mesh belt type vacuum quenching furnace is 18-20m/h.
Compared with the prior art, the invention has the beneficial effects that: the method for producing the high-strength cement nails,
(1) The treatment agent is a mixture of methanol, dimethylbenzene and water, the treatment agent is added, when the cement nail is tempered in a mesh belt tempering furnace, the hydrogenation and carburization of the cement nail are increased, wherein the hydrogenation of the cement nail is promoted by the water of the treatment agent, the carburization of the cement nail is promoted by the dimethylbenzene of the treatment agent, the cement nail is further modified on the basis of tempering, the physical constitution of the cement nail is changed, the integral strength and the structural compactness of the cement nail are improved, the cement nail is broken in the using process, the physical property of the cement nail is improved, the quality of the cement nail is improved, the cement nail can be blocked in vacuum through the combustion of the methanol, the damage to the cement nail by the tempering process is reduced, the yield of the cement nail by the process is improved, the production cost is reduced, and the economic benefit is improved.
(2) The medium carbon steel is arranged, has good plasticity, toughness and strength, has good comprehensive mechanical properties, can maintain certain strength while being convenient for being drawn, reduces the difficulty of a drawing process, improves the drawing efficiency, is widely applied and easy to purchase, has lower price compared with high carbon steel, reduces the production cost, has higher hardness compared with low carbon steel, ensures that the strength of a finished cement nail is better, and improves the quality of the cement nail.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The production method of the high-strength cement nail comprises the following production steps:
(1) Pretreatment of raw materials: the method comprises the steps of sequentially carrying out rust removal, acid washing, water cleaning and drying on the medium carbon steel wire rod, wherein the rust removal adopts mechanical rust removal, the drying adopts air blowing and airing, and the treated raw materials are stacked together for standby.
(2) Drawing raw materials: and (3) carrying out wire drawing treatment on the medium carbon steel wire rod treated in the step (1) by using a medium carbon steel rolling die wire drawing machine to prepare a metal wire with a specific specification.
(3) Shaping of cement nails: and (3) processing the metal wires in the step (2) by using a full-automatic nailing machine, cutting and extruding the long metal wires into cement nails with proper specifications, and preparing a cement nail semi-finished product.
(4) Quenching of the cement nails: placing the semi-finished cement nails obtained in the step (3) into a mesh belt type vacuum quenching furnace for quenching treatment, wherein the quenching temperature is 880 ℃, the advancing speed of a mesh belt is 18m/h, placing the quenched cement nails into an oil groove of a mesh belt type elevator, the lifting speed of the elevator is 48m/h, the temperature of quenching oil is 70 ℃, immersing the cement nails in oil, placing the immersed cement nails into a mesh belt type cleaning machine, spraying and cleaning the cement nails for 10min, and the cleaning temperature is 50 ℃.
(5) Tempering of the cement nails: placing the cement nails cleaned in the step (4) into a mesh belt tempering furnace, and adding a treating agent, wherein the treating agent comprises methanol, dimethylbenzene and water, and the mass ratio of each component of the treating agent is 200:1:10, tempering the cement nails at 180 ℃ at a tempering speed of 8m/h to obtain finished cement nails.
(6) Surface treatment: and (3) cleaning the finished cement nails in the step (5) to remove dust and impurities on the surface.
(7) And (3) detecting cement nails: selecting two groups of samples from the cement nails cleaned in the step (6), placing one group of samples into a toughness tester, bending the cement nails, performing toughness test, wherein the bending standard is bending 60-90 degrees, the cement nails are continuously qualified, performing hardness test on the other group of samples by using a Rockwell hardness tester, and judging the quality of the cement nails in the batch, wherein the hardness strength is qualified above the hardness HRC 52-55.
(8) Packaging: and (3) after the sample is detected to be qualified, bagging and packaging the cement nails cleaned in the step (7).
Example two
The production method of the high-strength cement nail comprises the following production steps:
(1) Pretreatment of raw materials: the method comprises the steps of sequentially carrying out rust removal, acid washing, water cleaning and drying on the medium carbon steel wire rod, wherein the rust removal adopts mechanical rust removal, the drying adopts air blowing and airing, and the treated raw materials are stacked together for standby.
(2) Drawing raw materials: and (3) carrying out wire drawing treatment on the medium carbon steel wire rod treated in the step (1) by using a medium carbon steel rolling die wire drawing machine to prepare a metal wire with a specific specification.
(3) Shaping of cement nails: and (3) processing the metal wires in the step (2) by using a full-automatic nailing machine, cutting and extruding the long metal wires into cement nails with proper specifications, and preparing a cement nail semi-finished product.
(4) Quenching of the cement nails: placing the semi-finished cement nails obtained in the step (3) into a mesh belt type vacuum quenching furnace for quenching treatment, wherein the quenching temperature is 900 ℃, the advancing speed of a mesh belt is 20m/h, placing the quenched cement nails into an oil groove of a mesh belt type elevator, the lifting speed of the elevator is 50m/h, the temperature of quenching oil is 100 ℃, immersing the cement nails in oil, placing the immersed cement nails into a mesh belt type cleaning machine, spraying and cleaning the cement nails for 15min, and the cleaning temperature is 60 ℃.
(5) Tempering of the cement nails: placing the cement nails cleaned in the step (4) into a mesh belt tempering furnace, and adding a treating agent, wherein the treating agent comprises methanol, dimethylbenzene and water, and the mass ratio of each component of the treating agent is 200:1:10, tempering the cement nails at 200 ℃ at a tempering speed of 8m/h to obtain finished cement nails.
(6) Surface treatment: and (3) cleaning the finished cement nails in the step (5) to remove dust and impurities on the surface.
(7) And (3) detecting cement nails: selecting two groups of samples from the cement nails cleaned in the step (6), placing one group of samples into a toughness tester, bending the cement nails, performing toughness test, wherein the bending standard is bending 60-90 degrees, the cement nails are continuously qualified, performing hardness test on the other group of samples by using a Rockwell hardness tester, and judging the quality of the cement nails in the batch, wherein the hardness strength is qualified above the hardness HRC 52-55.
(8) Packaging: and (3) after the sample is detected to be qualified, bagging and packaging the cement nails cleaned in the step (7).
Example III
The production method of the high-strength cement nail comprises the following production steps:
(1) Pretreatment of raw materials: the method comprises the steps of sequentially carrying out rust removal, acid washing, water cleaning and drying on the medium carbon steel wire rod, wherein the rust removal adopts mechanical rust removal, the drying adopts air blowing and airing, and the treated raw materials are stacked together for standby.
(2) Drawing raw materials: and (3) carrying out wire drawing treatment on the medium carbon steel wire rod treated in the step (1) by using a medium carbon steel rolling die wire drawing machine to prepare a metal wire with a specific specification.
(3) Shaping of cement nails: and (3) processing the metal wires in the step (2) by using a full-automatic nailing machine, cutting and extruding the long metal wires into cement nails with proper specifications, and preparing a cement nail semi-finished product.
(4) Quenching of the cement nails: placing the semi-finished cement nails obtained in the step (3) into a mesh belt type vacuum quenching furnace for quenching treatment, wherein the quenching temperature is 890 ℃, the advancing speed of a mesh belt is 19m/h, placing the quenched cement nails into an oil groove of a mesh belt type elevator, the lifting speed of the elevator is 49m/h, the temperature of quenching oil is 80 ℃, immersing the cement nails in oil, and placing the immersed cement nails into a mesh belt type cleaning machine for spraying and cleaning the cement nails for 13min, wherein the cleaning temperature is 55 ℃.
(5) Tempering of the cement nails: placing the cement nails cleaned in the step (4) into a mesh belt tempering furnace, and adding a treating agent, wherein the treating agent comprises methanol, dimethylbenzene and water, and the mass ratio of each component of the treating agent is 200:1:10, tempering the cement nails at 190 ℃ at a tempering speed of 8m/h to obtain finished cement nails.
(6) Surface treatment: and (3) cleaning the finished cement nails in the step (5) to remove dust and impurities on the surface.
(7) And (3) detecting cement nails: selecting two groups of samples from the cement nails cleaned in the step (6), placing one group of samples into a toughness tester, bending the cement nails, performing toughness test, wherein the bending standard is bending 60-90 degrees, the cement nails are continuously qualified, performing hardness test on the other group of samples by using a Rockwell hardness tester, and judging the quality of the cement nails in the batch, wherein the hardness strength is qualified above the hardness HRC 52-55.
(8) Packaging: and (3) after the sample is detected to be qualified, bagging and packaging the cement nails cleaned in the step (7).
Example IV
The production method of the high-strength cement nail comprises the following production steps:
(1) Pretreatment of raw materials: the method comprises the steps of sequentially carrying out rust removal, acid washing, water cleaning and drying on the medium carbon steel wire rod, wherein the rust removal adopts mechanical rust removal, the drying adopts air blowing and airing, and the treated raw materials are stacked together for standby.
(2) Drawing raw materials: and (3) carrying out wire drawing treatment on the medium carbon steel wire rod treated in the step (1) by using a medium carbon steel rolling die wire drawing machine to prepare a metal wire with a specific specification.
(3) Shaping of cement nails: and (3) processing the metal wires in the step (2) by using a full-automatic nailing machine, cutting and extruding the long metal wires into cement nails with proper specifications, and preparing a cement nail semi-finished product.
(4) Quenching of the cement nails: placing the semi-finished cement nails obtained in the step (3) into a mesh belt type vacuum quenching furnace for quenching treatment, wherein the quenching temperature is 885 ℃, the advancing speed of a mesh belt is 18m/h, placing the quenched cement nails into an oil groove of a mesh belt type elevator, the lifting speed of the elevator is 49m/h, the temperature of quenching oil is 90 ℃, immersing the cement nails in oil, placing the immersed cement nails into a mesh belt type cleaning machine, spraying and cleaning the cement nails for 12min, and the cleaning temperature is 56 ℃.
(5) Tempering of the cement nails: placing the cement nails cleaned in the step (4) into a mesh belt tempering furnace, and adding a treating agent, wherein the treating agent comprises methanol, dimethylbenzene and water, and the mass ratio of each component of the treating agent is 200:1:10, tempering the cement nails at 185 ℃ at a tempering speed of 8m/h to obtain finished cement nails.
(6) Surface treatment: and (3) cleaning the finished cement nails in the step (5) to remove dust and impurities on the surface.
(7) And (3) detecting cement nails: selecting two groups of samples from the cement nails cleaned in the step (6), placing one group of samples into a toughness tester, bending the cement nails, performing toughness test, wherein the bending standard is bending 60-90 degrees, the cement nails are continuously qualified, performing hardness test on the other group of samples by using a Rockwell hardness tester, and judging the quality of the cement nails in the batch, wherein the hardness strength is qualified above the hardness HRC 52-55.
(8) Packaging: and (3) after the sample is detected to be qualified, bagging and packaging the cement nails cleaned in the step (7).
And all that is not described in detail in this specification is within the skill of the art.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (5)
1. The production method of the high-strength cement nail is characterized by comprising the following production steps:
(1) Pretreatment of raw materials: sequentially carrying out rust removal, acid washing, water cleaning and drying on raw materials, and stacking the treated raw materials for later use;
(2) Drawing raw materials: drawing the raw material treated in the step (1) by using a drawing machine to prepare a metal wire with a specific specification;
(3) Shaping of cement nails: processing the metal wire in the step (2) by using a nailing machine, cutting and extruding the long metal wire into a cement nail with proper specification, and preparing a cement nail semi-finished product;
(4) Quenching of the cement nails: placing the semi-finished cement nails in the step (3) into a mesh belt type vacuum quenching furnace for quenching treatment, placing the quenched cement nails into an oil groove of a mesh belt type lifter, immersing the cement nails in oil, placing the immersed cement nails into a mesh belt type cleaning machine for cleaning the cement nails, wherein the lifting speed of the mesh belt type lifter is 48-50m/h, the temperature of quenching oil in the oil groove of the mesh belt type lifter is 70-100 ℃, the cleaning mode of the mesh belt type cleaning machine is spray cleaning, the cleaning time is 10-15min, and the cleaning temperature is 50-60 ℃;
(5) Tempering of the cement nails: placing the cement nails cleaned in the step (4) into a mesh belt tempering furnace, adding a treating agent, tempering the cement nails to prepare cement nail finished products, wherein the tempering temperature of the mesh belt tempering furnace is 180-200 ℃, the tempering speed of the mesh belt tempering furnace is 8m/h, the treating agent is methanol, dimethylbenzene and water, and the mass ratio of each component of the treating agent is 200:1:10;
(6) Surface treatment: cleaning the finished cement nails in the step (5) to remove dust and impurities on the surface;
(7) And (3) detecting cement nails: selecting two groups of samples from the cement nails cleaned in the step (6), placing one group of samples into a toughness tester, bending the cement nails, performing toughness test, performing hardness test on the other group of samples by using a Rockwell hardness tester, judging the quality of the cement nails in the batch, wherein the bending standard is bending 60-90 degrees, the cement nails are continuously qualified, and the hardness strength is more than 52-55 HRC;
(8) Packaging: and (3) after the sample is detected to be qualified, bagging and packaging the cement nails cleaned in the step (7).
2. The method for producing high-strength cement nails according to claim 1, characterized in that: the raw materials in the step (1) adopt medium carbon steel wires, rust removal adopts mechanical rust removal, and drying adopts air blowing and airing.
3. The method for producing high-strength cement nails according to claim 1, characterized in that: and (3) the wire drawing machine in the step (2) adopts a medium carbon steel rolling die wire drawing machine.
4. The method for producing high-strength cement nails according to claim 1, characterized in that: and (3) the nail making machine in the step (3) adopts a full-automatic nail making machine.
5. The method for producing high-strength cement nails according to claim 1, characterized in that: the quenching temperature of the mesh belt type vacuum quenching furnace in the step (4) is 880-900 ℃, and the mesh belt advancing speed of the mesh belt type vacuum quenching furnace is 18-20m/h.
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