CN116987863B - Continuous drawing treatment process for stainless steel wire - Google Patents

Continuous drawing treatment process for stainless steel wire Download PDF

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CN116987863B
CN116987863B CN202311264527.0A CN202311264527A CN116987863B CN 116987863 B CN116987863 B CN 116987863B CN 202311264527 A CN202311264527 A CN 202311264527A CN 116987863 B CN116987863 B CN 116987863B
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stainless steel
steel wire
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preform
drying
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CN116987863A (en
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梁保华
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Guangdong Shenhe New Material Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/065Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/02Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C8/00Solid 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
    • C23C8/06Solid 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 gases
    • C23C8/36Solid 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 gases using ionised gases, e.g. ionitriding
    • C23C8/38Treatment of ferrous surfaces
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

The invention relates to a continuous drawing treatment process for a stainless steel wire, and belongs to the technical field of stainless steel processing processes. The treatment process comprises the following steps: 1) Cleaning and drying a stainless steel wire body, soaking the stainless steel wire body in coating liquid, and drying to obtain a pretreated stainless steel wire; 2) Placing the pretreated stainless steel wire in a wire drawing machine for multi-pass drawing treatment to obtain a stainless steel wire preform; 3) Washing the surface of a stainless steel wire preform with water, blow-drying, placing the preform in a tube furnace for annealing treatment, discharging the preform, performing water cooling treatment, and performing single-pass drawing treatment to obtain a stainless steel wire semi-finished product; 4) Alloying the surface of the semi-finished stainless steel wire by adopting a double-layer glow ion metal infiltration method to obtain an alloyed stainless steel wire; 5) And carrying out ion nitriding treatment on the alloyed stainless steel wire to obtain the stainless steel wire. The invention adopts continuous drawing process and secondary annealing, obviously reduces the content of martensite and reduces the magnetism of the stainless steel wire.

Description

Continuous drawing treatment process for stainless steel wire
Technical Field
The invention belongs to the technical field of stainless steel processing technology, and relates to a stainless steel wire continuous drawing treatment technology.
Background
Stainless steel wire is also called as stainless steel wire, stainless steel is used as raw material, wire rod or wire blank is pulled out from the die hole of wire drawing die by cold drawing, so that wire products with different specifications and models are produced. At present, various brands of stainless steel such as SUS304, 1Cr18Ni9Ti, 1Cr18Ni9Mo, 12Cr18Ni9, 06Cr18Mn3Ni8N and the like exist at home and abroad, and although the stainless steel wires made of the stainless steel of the types have better mechanical property and corrosion resistance, the stainless steel wires have larger magnetism due to the fact that the stainless steel materials are provided with magnetism or are improperly processed in the processing process, and the stainless steel wires are provided with larger magnetism due to higher martensite content in the stainless steel wires, so that adverse effects on the use of the stainless steel wires can be generated.
Disclosure of Invention
The invention aims to provide a continuous drawing treatment process for a stainless steel wire, which is characterized in that the reduction of the section is controlled, the continuous drawing process and secondary annealing are adopted, the content of martensite is obviously reduced, the magnetism of the stainless steel wire is reduced, and the magnetism of the stainless steel wire is further reduced by introducing a Cr, ni, ti, la, mo, co alloy layer on the surface of the stainless steel wire, covering the stainless steel wire by ion nitriding and forming a passivation layer.
The aim of the invention can be achieved by the following technical scheme:
a continuous drawing treatment process for stainless steel wires, comprising the steps of:
1) Cleaning and drying a stainless steel wire body, soaking the stainless steel wire body in coating liquid, and drying to obtain a pretreated stainless steel wire;
2) Placing the pretreated stainless steel wire in a wire drawing machine for multi-pass drawing treatment, placing the pretreated stainless steel wire in a tube furnace for primary preheating and primary annealing, and carrying out water cooling treatment after discharging to obtain a stainless steel wire preform;
3) Washing the surface of a stainless steel wire preform with water, blow-drying, placing the preform in a tube furnace for secondary preheating and secondary annealing treatment, discharging the preform, performing water cooling treatment, and performing single-pass drawing treatment to obtain a stainless steel wire semi-finished product;
4) Alloying the surface of the semi-finished stainless steel wire by adopting a double-layer glow ion metal infiltration method to obtain an alloyed stainless steel wire;
5) And carrying out ion nitriding treatment on the alloyed stainless steel wire to obtain the stainless steel wire.
As a preferable technical scheme of the invention, the stainless steel wire body comprises, by mass, 13.5-15% of Cr, 2.4-4.2% of Mo, 9.6-10.5% of Ni, 0.9-1.5% of Mn, 6-9% of Co, 2.5-4.0% of Al, less than or equal to 0.08% of C, 0.05-0.08% of N, less than or equal to 0.6% of Si, less than or equal to 0.03% of P, less than or equal to 0.02% of S, and the balance of Fe and unavoidable impurities.
As a preferred technical scheme of the invention, in the step 1), the cleaning condition is that an acidic reagent is adopted for cleaning; the acidic reagent is 8-10% hydrochloric acid aqueous solution; the diameter of the stainless steel wire body is 5.5-6.5mm; the drying condition is that the drying is carried out for 25-30s at 120-150 ℃.
As a preferable technical scheme of the invention, in the step 2), the multi-pass drawing treatment is 5-8-pass drawing treatment, the reduction ratio of the 1 st and 2 nd passes drawing treatment is 15-20%, the reduction ratio of the 3 rd and 4 th passes drawing treatment is 30-40%, and the reduction ratio of the rest drawing treatment is 20-25%; the primary preheating condition is heating to 500 ℃ and preheating for 5min; the primary annealing treatment is carried out under the condition that the furnace temperature is 1150-1180 ℃ under the protection of argon gas, and the residence time is 1-1.5min.
As a preferable technical scheme of the invention, in the step 3), the condition of the secondary preheating is heating to 500 ℃ and preheating for 5min; the condition of the secondary annealing treatment is that the furnace stays for 1 to 1.5min under the protection atmosphere of argon and the furnace temperature of 1150 to 1180 ℃; the surface reduction rate in the single-pass drawing is 20-22%; by adopting a continuous drawing process, the small reduction ratio of the first two passes, the third four passes and the subsequent passes are adopted according to the height, so that more austenite is converted into martensite in the stainless steel, and when the subsequent drawing process is continued, the martensite formed earlier also participates in the plastic deformation of the subsequent multiple passes, and at the moment, the drawing process with the large reduction ratio and the two high-temperature anneals are combined, and partial reverse conversion can be carried out on the martensite formed earlier, so that the content of the martensite finally produced is smaller.
As a preferable technical scheme of the invention, in the step 4), the double-layer glow ion metal infiltration method comprises the steps of placing a stainless steel wire semi-finished product in a double-layer glow ion metal infiltration furnace, wherein a source electrode target material and the stainless steel wire semi-finished product are vertically hung, the distance is 20mm, and the working gas is high-purity argon; after the sputtering is finished, the surface of the semi-finished product of the stainless steel wire is subjected to base material sputtering cleaning, and the technological parameters are as follows: the working air pressure is 35-45Pa, the sputtering target voltage is 700V, the base material working voltage is 450V, the temperature is 900 ℃, the heat preservation time is 4h, and the cleaning time is 0.5h.
As a preferable technical scheme of the invention, the source electrode target material is prepared from Cr, ni, la, mo, co in mass ratio of 5.8:3:0.1:0.1:0.2, wherein the diameter of the source electrode target material is 40mm, and the thickness of the source electrode target material is 3mm; according to the invention, the electrode potential of the stainless steel wire is improved by adding Cr element, and a compact CrN compound protective layer is generated in the nitriding process by adding Cr element, so that the hardness gradient of the nitriding stainless steel wire section can be improved, and the strength support on the nitriding layer is enhanced. Meanwhile, the rare earth La is added to catalyze nitriding, so that nitriding speed and the thickness of a diffusion layer are promoted, grains can be thinned, and the structure and solid solution strengthening can be improved. The Mo element is added to refine the crystal grains of the stainless steel wire, improve hardenability and heat strength, reduce brittleness, enhance mechanical property and compactness of a passivation film, and stabilize an austenite structure by reducing Cr content. On the basis, the proper amount of Co element is added into the stainless steel wire, so that the stability and hardenability of supercooled austenite can be reduced, and the self-diffusion coefficient of Fe can be enhanced, thereby obtaining ultra-high strength and good comprehensive mechanical properties. In addition, the moderate reduction of Ni content is also helpful for improving the comprehensive performance of the stainless steel wire.
As a preferable technical solution of the present invention, in step 5), the process parameters of the ion nitriding treatment are: the voltage is 800V, the volume ratio of nitrogen to hydrogen is 1:3, the temperature is 800 ℃, and the heat preservation time is 8h; in the scheme of the invention, before nitriding, alloying is carried out on the surface of the stainless steel wire, rare earth elements are doped to have remarkable catalysis effect on nitriding, so that the nitriding speed can be greatly improved, and the thickness of the nitriding layer can be increased.
The invention has the beneficial effects that:
according to the invention, the reduction of the section is controlled, a continuous drawing process and secondary annealing are adopted, the content of martensite is obviously reduced, the magnetism of the stainless steel wire is reduced, and the magnetism of the stainless steel wire is further reduced by combining the introduction of a Cr, ni, ti, la, mo, co alloy layer on the surface of the stainless steel wire, the covering by ion nitriding and the formation of a passivation layer.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description is given below with reference to the embodiments, structures, features and effects according to the present invention.
The stainless steel wire body used in the embodiment and the comparative example comprises, by mass, 13.5% of Cr, 2.4% of Mo, 9.6% of Ni, 0.9% of Mn, 6% of Co, 2.5% of Al, less than or equal to 0.08% of C, 0.05% of N, less than or equal to 0.6% of Si, less than or equal to 0.03% of P, less than or equal to 0.02% of S, and the balance of Fe and unavoidable impurities.
Example 1
A continuous drawing treatment process for stainless steel wires, comprising the steps of:
1) Cleaning and drying a stainless steel wire body, soaking the stainless steel wire body in coating liquid, and drying to obtain a pretreated stainless steel wire; wherein the cleaning condition is that an acidic reagent is adopted for cleaning; the acidic reagent is hydrochloric acid aqueous solution with the mass concentration of 8%; the diameter of the stainless steel wire body is 5.5mm; the drying condition is that the drying is carried out for 25s at 120 ℃;
2) Placing the pretreated stainless steel wire in a wire drawing machine for multi-pass drawing treatment to obtain a stainless steel wire preform; wherein the multi-pass drawing treatment is 5-pass drawing treatment, the reduction ratio of the 1 st and 2 nd-pass drawing treatment is 15%, the reduction ratio of the 3 rd and 4 th-pass drawing treatment is 30%, and the reduction ratio of the 5 th-pass drawing treatment is 20%; the primary preheating condition is heating to 500 ℃ and preheating for 5min; the primary annealing treatment is carried out under the condition that the furnace stays for 1min under the protection of argon and the furnace temperature of 1150 ℃;
3) Washing the surface of a stainless steel wire preform with water, blow-drying, placing the preform in a tube furnace for annealing treatment, discharging the preform, performing water cooling treatment, and performing single-pass drawing treatment to obtain a stainless steel wire semi-finished product; wherein, the condition of secondary preheating is heating to 500 ℃ and preheating for 5min; the condition of the secondary annealing treatment is that the furnace stays for 1min under the protection atmosphere of argon and the furnace temperature of 1150 ℃; the area reduction rate in the single-pass drawing is 20%;
4) Alloying the surface of the semi-finished stainless steel wire by adopting a double-layer glow ion metal infiltration method to obtain an alloyed stainless steel wire; the double-layer glow ion metal infiltration method comprises the steps of placing a stainless steel wire semi-finished product in a double-layer glow ion metal infiltration furnace, wherein a source electrode target material and the stainless steel wire semi-finished product are vertically hung, the distance is 20mm, and working gas is high-purity argon; after the sputtering is finished, the surface of the semi-finished product of the stainless steel wire is subjected to base material sputtering cleaning, and the technological parameters are as follows: the working air pressure is 35Pa, the sputtering target voltage is 700V, the base material working voltage is 450V, the temperature is 900 ℃, the heat preservation time is 4 hours, and the cleaning time is 0.5 hour; the source electrode target material is prepared from Cr, ni, la, mo, co in a mass ratio of 5.8:3:0.1:0.1:0.2, wherein the diameter of the source electrode target material is 40mm, and the thickness of the source electrode target material is 3mm;
5) Carrying out ion nitriding treatment on the alloyed stainless steel wire to obtain a stainless steel wire;
wherein, the technological parameters of the ion nitriding treatment are as follows: the voltage is 800V, the volume ratio of nitrogen to hydrogen is 1:3, the temperature is 800 ℃, and the heat preservation time is 8h.
Example 2
A continuous drawing treatment process for stainless steel wires, comprising the steps of:
1) Cleaning and drying a stainless steel wire body, soaking the stainless steel wire body in coating liquid, and drying to obtain a pretreated stainless steel wire; wherein the cleaning condition is that an acidic reagent is adopted for cleaning; the acidic reagent is hydrochloric acid aqueous solution with the mass concentration of 9%; the diameter of the stainless steel wire body is 6mm; the drying condition is that the material is dried for 28s at 135 ℃;
2) Placing the pretreated stainless steel wire in a wire drawing machine for multi-pass drawing treatment to obtain a stainless steel wire preform; wherein the multi-pass drawing treatment is 7-pass drawing treatment, the reduction ratio of the 1 st and 2 nd-pass drawing treatment is 18%, the reduction ratio of the 3 rd and 4 th-pass drawing treatment is 35%, and the reduction ratio of the 5 th-7 th-pass drawing treatment is 22%; the primary preheating condition is heating to 500 ℃ and preheating for 5min; the primary annealing treatment is carried out under the condition that the furnace stays for 1.3min under the protection of argon and at the furnace temperature of 1165 ℃;
3) Washing the surface of a stainless steel wire preform with water, blow-drying, placing the preform in a tube furnace for annealing treatment, discharging the preform, performing water cooling treatment, and performing single-pass drawing treatment to obtain a stainless steel wire semi-finished product; wherein, the condition of secondary preheating is heating to 500 ℃ and preheating for 5min; the condition of the secondary annealing treatment is that the furnace stays for 1.3min under the protection atmosphere of argon and at the furnace temperature of 1165 ℃; the area reduction rate in the single-pass drawing is 21%;
4) Alloying the surface of the semi-finished stainless steel wire by adopting a double-layer glow ion metal infiltration method to obtain an alloyed stainless steel wire; the double-layer glow ion metal infiltration method comprises the steps of placing a stainless steel wire semi-finished product in a double-layer glow ion metal infiltration furnace, wherein a source electrode target material and the stainless steel wire semi-finished product are vertically hung, the distance is 20mm, and working gas is high-purity argon; after the sputtering is finished, the surface of the semi-finished product of the stainless steel wire is subjected to base material sputtering cleaning, and the technological parameters are as follows: working air pressure is 40Pa, sputtering target voltage is 700V, base material working voltage is 450V, temperature is 900 ℃, heat preservation time is 4h, and cleaning time is 0.5h; the source electrode target material is prepared from Cr, ni, la, mo, co in a mass ratio of 5.8:3:0.1:0.1:0.2, wherein the diameter of the source electrode target material is 40mm, and the thickness of the source electrode target material is 3mm;
5) Carrying out ion nitriding treatment on the alloyed stainless steel wire to obtain a stainless steel wire;
wherein, the technological parameters of the ion nitriding treatment are as follows: the voltage is 800V, the nitrogen-hydrogen ratio is 1:3, the temperature is 800 ℃, and the heat preservation time is 8h.
Example 3
A continuous drawing treatment process for stainless steel wires, comprising the steps of:
1) Cleaning and drying a stainless steel wire body, soaking the stainless steel wire body in coating liquid, and drying to obtain a pretreated stainless steel wire; wherein the cleaning condition is that an acidic reagent is adopted for cleaning; the acidic reagent is hydrochloric acid aqueous solution with the mass concentration of 10%; the diameter of the stainless steel wire body is 6.5mm; the drying condition is that the material is dried for 30s at 150 ℃;
2) Placing the pretreated stainless steel wire in a wire drawing machine for multi-pass drawing treatment to obtain a stainless steel wire preform; wherein the multi-pass drawing treatment is 8-pass drawing treatment, the reduction ratio of the 1 st and 2 nd-pass drawing treatment is 20%, the reduction ratio of the 3 rd and 4 th-pass drawing treatment is 40%, and the reduction ratio of the 5 th-8 th-pass drawing treatment is 25%; the primary preheating condition is heating to 500 ℃ and preheating for 5min; the primary annealing treatment is carried out under the condition that the furnace stays for 1.5min under the protection of argon and the furnace temperature of 1180 ℃;
3) Washing the surface of a stainless steel wire preform with water, blow-drying, placing the preform in a tube furnace for annealing treatment, discharging the preform, performing water cooling treatment, and performing single-pass drawing treatment to obtain a stainless steel wire semi-finished product; wherein, the condition of secondary preheating is heating to 500 ℃ and preheating for 5min; the condition of the secondary annealing treatment is that the furnace stays for 1.5min under the protection atmosphere of argon and the furnace temperature of 1180 ℃; the area reduction rate in the single-pass drawing is 22%;
4) Alloying the surface of the semi-finished stainless steel wire by adopting a double-layer glow ion metal infiltration method to obtain an alloyed stainless steel wire; the double-layer glow ion metal infiltration method comprises the steps of placing a stainless steel wire semi-finished product in a double-layer glow ion metal infiltration furnace, wherein a source electrode target material and the stainless steel wire semi-finished product are vertically hung, the distance is 20mm, and working gas is high-purity argon; after the sputtering is finished, the surface of the semi-finished product of the stainless steel wire is subjected to base material sputtering cleaning, and the technological parameters are as follows: the working air pressure is 45Pa, the sputtering target voltage is 700V, the base material working voltage is 450V, the temperature is 900 ℃, the heat preservation time is 4 hours, and the cleaning time is 0.5 hour; the source electrode target material is prepared from Cr, ni, la, mo, co in a mass ratio of 5.8:3:0.1:0.1:0.2, wherein the diameter of the source electrode target material is 40mm, and the thickness of the source electrode target material is 3mm;
5) Carrying out ion nitriding treatment on the alloyed stainless steel wire to obtain a stainless steel wire;
wherein, the technological parameters of the ion nitriding treatment are as follows: the voltage is 800V, the nitrogen-hydrogen ratio is 1:3, the temperature is 800 ℃, and the heat preservation time is 8h.
Comparative example 1
Step 2) placing the pretreated stainless steel wire in a wire drawing machine for multi-pass drawing treatment to obtain a stainless steel wire prefabricated product; wherein the multi-pass drawing treatment is 7-pass drawing treatment, the reduction ratio of the 1 st and 2 nd-pass drawing treatment is 35%, the reduction ratio of the 3 rd and 4 th-pass drawing treatment is 22%, and the reduction ratio of the 5 th-7 th-pass drawing treatment is 18%; the primary preheating condition is heating to 500 ℃ and preheating for 5min; the primary annealing treatment is carried out under the condition that the furnace stays for 1.3min under the protection of argon and at the furnace temperature of 1165 ℃;
the difference compared to example 2 is the reduction ratio of the multi-pass drawing treatment in step 2), and the remaining components, preparation steps and parameters are identical.
Comparative example 2
Step 2) placing the pretreated stainless steel wire in a wire drawing machine for multi-pass drawing treatment to obtain a stainless steel wire prefabricated product; wherein the multi-pass drawing treatment is 7-pass drawing treatment, the reduction ratio of the 1 st and 2 nd-pass drawing treatment is 18%, the reduction ratio of the 3 rd and 4 th-pass drawing treatment is 35%, and the reduction ratio of the 5 th-7 th-pass drawing treatment is 22%; the primary preheating condition is heating to 500 ℃ and preheating for 5min; the primary annealing treatment is carried out under the condition that the furnace stays for 1.3min under the protection of argon gas at the furnace temperature of 900 ℃;
the difference compared to example 2 is the temperature of the primary annealing treatment of step 2), the remaining components, preparation steps and parameters being identical.
Comparative example 3
Step 3) washing the surface of the stainless steel wire preform with water, blow-drying, placing the stainless steel wire preform in a tube furnace for annealing treatment, discharging the stainless steel wire preform, performing water cooling treatment, and performing single-pass drawing treatment to obtain a semi-finished stainless steel wire product; wherein, the condition of secondary preheating is heating to 500 ℃ and preheating for 5min; the condition of the secondary annealing treatment is that the furnace stays for 1.3min under the protection atmosphere of argon and the furnace temperature of 900 ℃; the area reduction rate in the single-pass drawing is 21%;
the difference compared to example 2 is the temperature of the secondary annealing treatment of step 3), the remaining components, preparation steps and parameters are identical.
Comparative example 4
The difference compared to example 2 is that the process of step 4) is not carried out, the remaining components, preparation steps and parameters are identical.
Comparative example 5
In comparison with example 2, the process of step 5) was not carried out, the remaining components, preparation steps and parameters being identical.
Comparative example 6
The difference compared to example 2 is that the source target does not contain Cr, and the remaining components, preparation steps and parameters are all identical.
Comparative example 7
Compared with example 2, the source target does not contain La, and the rest of components, preparation steps and parameters are consistent.
Comparative example 8
The difference compared to example 2 is that the source target does not contain Mo, and the remaining components, preparation steps and parameters are all identical.
Comparative example 9
The difference compared to example 2 is that the source target does not contain Co, and the remaining components, preparation steps and parameters are all consistent.
The saturation magnetization of the stainless steel wires prepared in examples 1 to 3 and comparative examples 1 to 5 was measured and calculated using a fluxgraph, and the test results are shown in table 1.
TABLE 1
Mechanical properties were tested on the stainless steel wires prepared in examples 1 to 3 and comparative examples 1 to 9:
wherein it is subjected to tensile strength and fracture according to GB/T228.1-2010; the number of bending times was measured in accordance with GB/T238-2002, and the test results are shown in Table 2.
TABLE 2
From the test results of tables 1 and 2, it is apparent that the stainless steel wires produced in examples 1 to 3 of the present invention are remarkably excellent in combination properties as comparative examples 1 to 9.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.

Claims (4)

1. A continuous drawing treatment process for stainless steel wires, which is characterized by comprising the following steps:
1) Cleaning and drying a stainless steel wire body, soaking the stainless steel wire body in coating liquid, and drying to obtain a pretreated stainless steel wire;
2) Placing the pretreated stainless steel wire in a wire drawing machine for multi-pass drawing treatment, placing the pretreated stainless steel wire in a tube furnace for primary preheating and primary annealing, and carrying out water cooling treatment after discharging to obtain a stainless steel wire preform; wherein the multi-pass drawing treatment is 5-8-pass drawing treatment, the reduction ratio of the 1 st and 2 nd drawing treatments is 15-20%, the reduction ratio of the 3 rd and 4 th drawing treatments is 30-40%, and the reduction ratio of the rest drawing treatments is 20-25%; the primary preheating condition is heating to 500 ℃ and preheating for 5min; the primary annealing treatment is carried out under the condition that the furnace stays in the furnace for 1-1.5min under the protection atmosphere of argon and the furnace temperature of 1150-1180 ℃;
3) Washing the surface of a stainless steel wire preform with water, blow-drying, placing the preform in a tube furnace for secondary preheating and secondary annealing treatment, discharging the preform, performing water cooling treatment, and performing single-pass drawing treatment to obtain a stainless steel wire semi-finished product; wherein, the condition of secondary preheating is heating to 500 ℃ and preheating for 5min; the condition of the secondary annealing treatment is that the furnace stays for 1 to 1.5min under the protection atmosphere of argon and the furnace temperature of 1150 to 1180 ℃; the surface reduction rate in the single-pass drawing is 20-22%;
4) Alloying the surface of the semi-finished stainless steel wire by adopting a double-layer glow ion metal infiltration method to obtain an alloyed stainless steel wire; the double-layer glow ion metal infiltration method comprises the steps of placing a stainless steel wire semi-finished product in a double-layer glow ion metal infiltration furnace, wherein a source electrode target material and the stainless steel wire semi-finished product are vertically hung, the distance is 20mm, and working gas is high-purity argon; after the sputtering is finished, the surface of the semi-finished product of the stainless steel wire is subjected to base material sputtering cleaning, and the technological parameters are as follows: the working air pressure is 35-45Pa, the sputtering target voltage is 700V, the base material working voltage is 450V, the temperature is 900 ℃, the heat preservation time is 4 hours, and the cleaning time is 0.5 hour; the source electrode target material is prepared from Cr, ni, la, mo, co in a mass ratio of 5.8:3:0.1:0.1:0.2, wherein the diameter of the source electrode target material is 40mm, and the thickness of the source electrode target material is 3mm;
5) And carrying out ion nitriding treatment on the alloyed stainless steel wire to obtain the stainless steel wire.
2. The continuous drawing treatment process of the stainless steel wire according to claim 1, wherein the stainless steel wire body comprises, by mass, 13.5-15% of Cr, 2.4-4.2% of Mo, 9.6-10.5% of Ni, 0.9-1.5% of Mn, 6-9% of Co, 2.5-4.0% of Al, less than or equal to 0.08% of C, 0.05-0.08% of N, less than or equal to 0.6% of Si, less than or equal to 0.03% of P, less than or equal to 0.02% of S, and the balance of Fe and unavoidable impurities.
3. A continuous drawing process for stainless steel wire according to claim 1, wherein: in step 1), the cleaning conditions are cleaning with an acidic reagent; the acidic reagent is 8-10% hydrochloric acid aqueous solution; the diameter of the stainless steel wire body is 5.5-6.5mm; the drying condition is that the drying is carried out for 25-30s at 120-150 ℃.
4. A continuous drawing process for stainless steel wire according to claim 1, wherein: in step 5), the process parameters of the ion nitriding treatment are as follows: the voltage is 800V, the volume ratio of nitrogen to hydrogen is 1:3, the temperature is 800 ℃, and the heat preservation time is 8h.
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Citations (4)

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Publication number Priority date Publication date Assignee Title
CN103397262A (en) * 2013-07-25 2013-11-20 张家港市胜达钢绳有限公司 Manufacturing method of stainless steel wire
CN109261731A (en) * 2018-08-24 2019-01-25 江阴康瑞成型技术科技有限公司 The production technology of anticorrosive anti-loosening stainless steel room staple line
CN114959516A (en) * 2022-05-25 2022-08-30 北京科技大学 Stainless steel wire and preparation method thereof
JP2023104640A (en) * 2022-01-18 2023-07-28 日本製鉄株式会社 plated steel wire

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397262A (en) * 2013-07-25 2013-11-20 张家港市胜达钢绳有限公司 Manufacturing method of stainless steel wire
CN109261731A (en) * 2018-08-24 2019-01-25 江阴康瑞成型技术科技有限公司 The production technology of anticorrosive anti-loosening stainless steel room staple line
JP2023104640A (en) * 2022-01-18 2023-07-28 日本製鉄株式会社 plated steel wire
CN114959516A (en) * 2022-05-25 2022-08-30 北京科技大学 Stainless steel wire and preparation method thereof

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