CN115198180A - Production method for refining wire by using socket wrench - Google Patents
Production method for refining wire by using socket wrench Download PDFInfo
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- CN115198180A CN115198180A CN202210735245.3A CN202210735245A CN115198180A CN 115198180 A CN115198180 A CN 115198180A CN 202210735245 A CN202210735245 A CN 202210735245A CN 115198180 A CN115198180 A CN 115198180A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- 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
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/045—Manufacture of wire or bars with particular section or properties
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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
- C21D1/26—Methods of annealing
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/12—Orthophosphates containing zinc cations
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
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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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
Abstract
A production method for refining wires by using a socket wrench belongs to the technical field of steel wire production. The method comprises the working procedures of acid pickling phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling phosphorization and fine drawing and drawing; acid pickling and phosphating, wherein the Widmannstatten structure of the used hot rolled wire rod is 0 grade or 1 grade, and the diameter of the hot rolled wire rod is 38-40 mm; and a yellowing step, namely soaking the annealed wire rod in hydrochloric acid with the mass fraction of 8-16% for 5-10 min, and then placing the wire rod outdoors for 24-48 h. The diameter of the socket wrench refined wire produced by the invention is 35.10-35.50 mm, the hardness is less than or equal to 90HRB, the tensile strength is 520-550 Mpa, the spheroidization grade is 4 grade and 5 grade, and the quality of the phosphate coating is 10-12g/m 2 And the bad phenomena of abnormal sound, scratch and the like of the fine wire in the cold heading process are eliminated.
Description
Technical Field
The invention belongs to the technical field of steel wire production, and particularly relates to a production method for refining a wire by using a socket wrench.
Background
The socket wrench is usually produced by cold heading forming, and the used raw material is tool steel refined wire. The refined wire used for producing the high-end socket wrench is 50BV30, because 50BV30 contains wear-resistant and corrosion-resistant boron element and has certain toughness. At present, most of refined wires have the problems of galling and scratching, large die loss and the like in the process of producing the socket wrench, and particularly, the refined wires with the specification of more than 35.00mm have low yield and high production cost. The reason is that the fine line exceeding 35.00mm is produced by using raw materials with the thickness of more than 36.00mm, the size is large, the production capacity of the existing wire drawing machine is limited, the rough drawing reduction ratio is usually smaller, and Widmanschner structures existing in the raw materials are difficult to eliminate in the process of producing the fine line. Finally, the nodularity of the produced refined wire rod is only 3-4 grades, and the refined wire rod generates abnormal sound during cold heading and is damagedA mold; in addition, the extrusion force that the smart line of big specification received at the in-process of cold-heading into part is bigger, and is higher to smart line bonderizing quality requirement. The quality of the phosphating film of the fine line produced by the prior process is only 6-10g/m 2 And the fine wire is easy to scratch in the process of cold heading the fine wire into parts.
Disclosure of Invention
In order to solve the technical problems, the invention provides a production method for refining wires by using a socket wrench, which adopts the technical scheme that:
a production method for refining wire by using a socket wrench comprises the working procedures of acid pickling phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling phosphorization and fine drawing and drawing;
in the acid pickling phosphating procedure, the Widmannstatten structure of the used hot rolled wire rod is 0 grade or 1 grade, and the diameter is 38-40 mm;
in the yellowing process, the annealed wire is soaked in hydrochloric acid with the mass fraction of 8-16% for 5-10 min and then placed outdoors for 24-48 h;
the diameter of the socket wrench refined wire is 35.10-35.50 mm.
The hot-rolled wire rod comprises the following chemical components in percentage by mass: 0.27 to 0.32 percent of C, 0.04 to 0.09 percent of Si, 0.70 to 1.00 percent of Mn, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, 0.30 to 0.50 percent of Cr, 0.10 to 0.15 percent of V, more than or equal to 0.0006 percent of B, and the balance of Fe and inevitable impurities.
The acid pickling phosphating process comprises the following specific steps: soaking the wire rod in hydrochloric acid with the mass fraction of 16-24% and the temperature of 10-40 ℃ for 20-30 min, then washing the wire rod by using a high-pressure water gun, and then sequentially placing the wire rod in a water tank, a surface conditioning tank, a phosphating tank, a neutralization tank and a saponification tank for soaking.
In the acid pickling and phosphating process, a high-pressure water gun is used for washing for 1-2 min, and the pressure of the high-pressure water gun is 0.2-0.5 Mpa; soaking the wire rod in a water tank for 1-2 min, soaking in a surface adjusting tank for 1-2 min, and soaking in a phosphating tank for 10-15 min, wherein the temperature of the phosphating tank is 50-60 ℃, and the phosphating agent used is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 1-3 min and is soaked in a saponification tank for 2-5 min, and the temperature of a saponifier is 60-70 ℃.
In the coarse drawing process, the wire is drawn to 35.40-35.90 mm, and the coarse drawing surface reduction rate is 10.0-20%.
In the annealing process, the wire is put into a roller-hearth STC annealing furnace and then heated to 750-760 ℃ at the speed of 100-150 ℃/h, and the temperature is kept for 4-5 h; then cooling to 710-730 ℃ at the speed of 16-20 ℃/h, and preserving heat for 3-5 h; then the temperature is reduced to 560-600 ℃ at the speed of 8-15 ℃/h, and then the furnace is stopped, the wire is discharged from the furnace, and the wire is naturally cooled to the room temperature in the air.
In the secondary acid pickling and phosphating process, the wire is soaked in hydrochloric acid with the mass fraction of 8-16% and the temperature of 10-40 ℃ for 5-10 min, then the wire is washed by a high-pressure water gun, and then the wire is sequentially placed in a water tank, a surface adjusting tank, a phosphating tank, a neutralization tank and a saponification tank for soaking.
In the secondary acid pickling and phosphating step, a high-pressure water gun is used for washing for 1-2 min, and the pressure of the high-pressure water gun is 0.2-0.5 Mpa; soaking the wire rod in a water tank for 1-2 min, soaking in a surface adjusting tank for 1-2 min, and soaking in a phosphating tank for 10-15 min, wherein the temperature of the phosphating tank is 50-60 ℃, and the phosphating agent used is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 1-3 min and is soaked in a saponification tank for 2-5 min, and the temperature of a saponifier is 60-70 ℃.
In the fine drawing process, the wire is drawn to 35.10-35.50 mm, and the fine drawing reduction rate is 1.0-3%.
The hardness of the socket wrench refined wire rod produced by the method is less than or equal to 90HRB, the tensile strength is 520-550 Mpa, the spheroidization grade is 4 grade and 5 grade, and the quality of the phosphate coating is 10-12g/m 2 。
The invention provides a foundation for producing high-quality fine lines by strictly controlling the quality of the metallographic microstructure of the hot-rolled raw material; aiming at the problems of poor pickling effect and low quality of the phosphating film caused by residues on the surface after pickling treatment, a yellowing treatment process is developed to ensure that the quality of the phosphating film of a fine line reaches 10-12g/m 2 . By the measures, the bad phenomena of abnormal sound, scratch and the like of the fine wire in the cold heading process are eliminated.
The hardness of the socket wrench refined wire produced by the invention is less than or equal to 90HRB, the tensile strength is 520-550 Mpa, and the spheroidization grade is 4 grade and 5 grade.
Drawings
FIG. 1 is a metallographic structure of a hot-rolled wire material according to the present invention;
FIG. 2 is a view of a wire rod after yellowing treatment according to the present invention;
FIG. 3 is a metallographic structure drawing (500 times) of a box spanner-refined wire rod produced in example 1;
FIG. 4 is a metallographic structure drawing (500 times) of a box spanner-refined wire rod produced in example 2;
FIG. 5 is a metallographic structure diagram (500 times) of a box spanner-purified wire rod produced in example 3.
Detailed Description
Example 1
The Widmannstatten structure of the hot-rolled wire rod used in the present example was 0 grade, the diameter was 38.00mm, and the chemical composition and the mass percentage thereof are shown in Table 1.
The production method for refining the wire by using the socket wrench comprises the working procedures of acid pickling and phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling and phosphorization and fine drawing and drawing, and comprises the following specific process steps of:
(1) Acid pickling and phosphating working procedure: soaking the wire rod in hydrochloric acid with mass fraction of 18% and temperature of 20 deg.C for 20min, and washing the wire rod with high pressure water gun with pressure of 0.3Mpa for 1 min; soaking in a water tank for 1min to wash out residual hydrochloric acid on the surface of the wire rod, then soaking in a surface conditioning tank for 1min, and soaking in a phosphating tank for 10min, wherein the temperature of the phosphating tank is 50 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 1min to reduce the acidity of the surface of the wire, and is finally soaked in a saponification tank for 2min, wherein the temperature of a saponifier is 60 ℃.
(2) A coarse drawing process: and drawing the wire rod after acid pickling and phosphorization to 35.90mm by using a wire drawing machine, wherein the rough drawing reduction rate is 10.75%.
(3) And (3) annealing: the wire is put into a roller-hearth STC annealing furnace and then heated to 750 ℃ at the speed of 150 ℃/h, and the temperature is kept for 4h; then cooling to 710 ℃ at the speed of 16 ℃/h, and preserving heat for 5h; and then the temperature is reduced to 560 ℃ at the speed of 8 ℃/h, and then the furnace is stopped, the wire is discharged from the furnace and naturally cooled to the room temperature in the air.
(4) A yellowing step: and soaking the annealed wire rod in hydrochloric acid with the mass fraction of 10% for 8min, and then placing the wire rod outdoors for 24h.
(5) Secondary acid pickling phosphating procedure: soaking the etiolated wire rod in 10 wt% hydrochloric acid at 20 deg.C for 6min, and washing the wire rod with high pressure water gun at 0.3Mpa for 1 min; then soaking the wire rod in a water tank for 1min to wash away residual hydrochloric acid on the surface of the wire rod, then soaking the wire rod in a surface conditioning tank for 1.5min, and soaking the wire rod in a phosphating tank for 12min, wherein the temperature of the phosphating tank is 60 ℃, and the used phosphating agent is a zinc phosphating agent; and soaking the phosphatized wire rod in a neutralization tank for 1min to reduce the acidity of the surface of the wire rod, and finally soaking in a saponification tank for 2min, wherein the temperature of a saponifier is 65 ℃.
(6) A fine drawing process: and (3) drawing the wire rod subjected to secondary acid cleaning and phosphorization to 35.50mm by using a wire drawing machine, wherein the fine drawing surface reduction rate is 2.22%.
The hardness, tensile strength, spheroidizing grade and quality of the wire rod refined by the socket wrench produced by the implementation are shown in table 2. The metallographic structure diagram is shown in fig. 3, and it is understood from the diagram that the ferrite matrix is distributed with punctiform spheroidizes and a small amount of pearlite, and the spheroidization grade is grade 4.
Example 2
The Widmannstatten structure of the hot-rolled wire rod used in the present example was 0 grade, the diameter was 38.00mm, and the chemical composition and the mass percentage thereof are shown in Table 1.
The production method for refining the wire by using the socket wrench comprises the working procedures of acid pickling and phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling and phosphorization and fine drawing and drawing, and comprises the following specific process steps of:
(1) Acid pickling and phosphating working procedure: soaking the wire rod in 20 mass percent hydrochloric acid at the temperature of 32 ℃ for 25min, and then flushing the wire rod with a high-pressure water gun for 1min, wherein the pressure of the high-pressure water gun is 0.4Mpa; then soaking in a water tank for 1min to wash out residual hydrochloric acid on the surface of the wire rod, then soaking in a surface conditioning tank for 1min, and soaking in a phosphating tank for 15min, wherein the temperature of the phosphating tank is 50 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 1min to reduce the acidity of the surface of the wire, and is finally soaked in a saponification tank for 3min, wherein the temperature of a saponifier is 60 ℃.
(2) A coarse drawing process: the wire rod after acid pickling and phosphorization is drawn to 35.40mm by a wire drawing machine, and the rough drawing surface reduction rate is 13.22%.
(3) And (3) annealing: the wire is put into a roller-hearth STC annealing furnace, heated to 755 ℃ at a speed of 144 ℃/h and kept warm for 4.5h; then cooling to 720 ℃ at the speed of 18 ℃/h, and preserving heat for 3h; then the temperature is reduced to 580 ℃ at the speed of 10 ℃/h, and then the furnace is stopped to discharge the wire from the furnace, and the wire is naturally cooled to the room temperature in the air.
(4) A yellowing step: and soaking the annealed wire rod in hydrochloric acid with the mass fraction of 16% for 5min, and then placing the wire rod outdoors for 30h.
(5) Secondary acid pickling phosphating procedure: soaking the etiolated wire rod in 11 wt% hydrochloric acid at 24 deg.C for 5min, and washing the wire rod with high pressure water gun at 0.3Mpa for 1 min; then soaking the wire rod in a water tank for 1min to wash away residual hydrochloric acid on the surface of the wire rod, then soaking the wire rod in a surface conditioning tank for 1min, and soaking the wire rod in a phosphating tank for 13min, wherein the temperature of the phosphating tank is 60 ℃, and the used phosphating agent is a zinc phosphating agent; and soaking the phosphatized wire rod in a neutralization tank for 1min to reduce the acidity of the surface of the wire rod, and finally soaking in a saponification tank for 2min, wherein the temperature of a saponifier is 65 ℃.
(6) A fine drawing process: and drawing the wire rod subjected to secondary acid pickling and phosphorization to 35.10mm by using a wire drawing machine, wherein the fine drawing surface reduction rate is 1.69%.
The hardness, tensile strength, spheroidizing grade and quality of the wire rod refined by the socket wrench produced by the implementation are shown in table 2. The metallographic structure diagram is shown in fig. 4, and it is understood from the diagram that the ferrite matrix is distributed with punctiform spheroidizes and a small amount of pearlite, and the spheroidization grade is grade 4.
Example 3
The widmannstatten structure of the hot-rolled wire rod used in this example should be grade 1, the diameter of the wire rod is 40.00mm, and the chemical composition and the mass percentage content of the hot-rolled wire rod are shown in table 1.
The production method for refining the wire by using the socket wrench comprises the working procedures of acid pickling and phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling and phosphorization and fine drawing and drawing, and comprises the following specific process steps of:
(1) Acid pickling and phosphating working procedure: soaking the wire rod in 22 mass percent hydrochloric acid at the temperature of 21 ℃ for 23min, and then flushing the wire rod with a high-pressure water gun for 1.5min, wherein the pressure of the high-pressure water gun is 0.5Mpa; then soaking the wire rod in a water tank for 1.5min to wash away residual hydrochloric acid on the surface of the wire rod, then soaking the wire rod in a surface conditioning tank for 1min, and soaking the wire rod in a phosphating tank for 13min, wherein the temperature of the phosphating tank is 55 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 2min to reduce the acidity of the surface of the wire, and is finally soaked in a saponification tank for 5min, wherein the temperature of a saponifier is 65 ℃.
(2) A coarse drawing process: and drawing the wire rod after acid pickling and phosphorization to 35.80mm by using a wire drawing machine, wherein the rough drawing reduction rate is 19.90 percent.
(3) And (3) annealing: the wire is put into a roller-hearth STC annealing furnace and then heated to 760 ℃ at the speed of 115 ℃/h, and the temperature is kept for 5h; then cooling to 710 ℃ at the speed of 16 ℃/h, and preserving heat for 4h; and then the temperature is reduced to 560 ℃ at the speed of 8 ℃/h, and then the furnace is stopped, the wire is discharged from the furnace and naturally cooled to the room temperature in the air.
(4) A yellowing process: and soaking the annealed wire rod in hydrochloric acid with the mass fraction of 15% for 6min, and then placing the wire rod outdoors for 24h.
(5) A secondary acid pickling phosphating procedure: soaking the yellowed wire rod in hydrochloric acid with the mass fraction of 10% and the temperature of 26 ℃ for 5min, and then washing the wire rod for 1min by using a high-pressure water gun with the pressure of 0.5Mpa; then soaking the wire rod in a water tank for 1min to wash away residual hydrochloric acid on the surface of the wire rod, then soaking the wire rod in a surface conditioning tank for 1min, and soaking the wire rod in a phosphating tank for 13min, wherein the temperature of the phosphating tank is 60 ℃, and the used phosphating agent is a zinc phosphating agent; and soaking the phosphatized wire rod in a neutralization tank for 1min to reduce the acidity of the surface of the wire rod, and finally soaking in a saponification tank for 2min, wherein the temperature of a saponifier is 67 ℃.
(6) A fine drawing process: and drawing the wire rod subjected to secondary acid pickling and phosphorization to 35.30mm by using a wire drawing machine, wherein the finish drawing surface reduction rate is 2.77%.
The hardness, tensile strength, spheroidizing grade and quality of the socket wrench refined wire produced by the method are shown in table 2. As shown in FIG. 5, it is understood that the ferrite matrix is distributed with the punctiform spheroidized bodies and spheroidized bodies, and the spheroidized grade is grade 5.
Example 4
The widmannstatten structure of the hot-rolled wire rod used in this example should be grade 0, the diameter of the wire rod should be 40mm, and the chemical composition and the mass percentage content of the hot-rolled wire rod are shown in table 1.
The production method for refining the wire by using the socket wrench comprises the working procedures of acid pickling and phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling and phosphorization and fine drawing and drawing, and comprises the following specific process steps of:
(1) Acid pickling and phosphating working procedure: soaking the wire rod in 16 wt% hydrochloric acid at 10 deg.C for 20min, and washing the wire rod with a high pressure water gun at 0.2Mpa for 1 min; soaking in a water tank for 1min to wash out residual hydrochloric acid on the surface of the wire rod, then soaking in a surface conditioning tank for 1min, and soaking in a phosphating tank for 10min, wherein the temperature of the phosphating tank is 50 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 1min to reduce the acidity of the surface of the wire, and is finally soaked in a saponification tank for 2min, wherein the temperature of a saponifier is 60 ℃.
(2) A coarse drawing process: and drawing the wire rod after acid pickling and phosphorization to 35.90mm by using a wire drawing machine, wherein the rough drawing reduction rate is 19.45%.
(3) And (3) annealing: the wire is put into a roller hearth type STC annealing furnace, then the temperature is raised to 750 ℃ at the speed of 100 ℃/h, and the temperature is kept for 4h; then cooling to 710 ℃ at the speed of 16 ℃/h, and preserving heat for 3h; and then the temperature is reduced to 560 ℃ at the speed of 8 ℃/h, and then the furnace is stopped, the wire is discharged from the furnace and naturally cooled to the room temperature in the air.
(4) A yellowing process: and soaking the annealed wire rod in hydrochloric acid with the mass fraction of 8% for 5min, and then placing the wire rod outdoors for 24h.
(5) Secondary acid pickling phosphating procedure: soaking the etiolated wire rod in hydrochloric acid with mass fraction of 8% and temperature of 10 deg.C for 5min, and washing the wire rod with high pressure water gun with pressure of 0.2Mpa for 1 min; then soaking in a water tank for 1min to wash out residual hydrochloric acid on the surface of the wire rod, then soaking in a surface conditioning tank for 1min, and soaking in a phosphating tank for 10min, wherein the temperature of the phosphating tank is 50 ℃, and the used phosphating agent is a zinc phosphating agent; and soaking the phosphatized wire rod in a neutralization tank for 1min to reduce the acidity of the surface of the wire rod, and finally soaking in a saponification tank for 2min, wherein the temperature of a saponifier is 60 ℃.
(6) A fine drawing process: and drawing the wire rod subjected to secondary acid pickling and phosphorization to 35.40mm by using a wire drawing machine, wherein the finish drawing surface reduction rate is 2.77%.
The hardness, tensile strength, spheroidizing grade and quality of the wire rod refined by the socket wrench produced by the implementation are shown in table 2.
Example 5
The Widmannstatten structure of the hot-rolled wire rod used in the present example should be grade 1, the diameter is 38mm, and the chemical composition and mass percentage content thereof are shown in Table 1.
The production method for refining the wire by using the socket wrench comprises the working procedures of acid pickling and phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling and phosphorization and fine drawing and drawing, and comprises the following specific process steps of:
(1) Acid pickling and phosphating working procedure: soaking the wire rod in hydrochloric acid with the mass fraction of 20% and the temperature of 25 ℃ for 25min, and then flushing the wire rod with a high-pressure water gun with the pressure of 0.35Mpa for 25 min; soaking in water tank for 1.5min to wash away residual hydrochloric acid on wire surface, and soaking in surface conditioning tank
Soaking for 1.5min in a phosphating tank for 13min, wherein the temperature of the phosphating tank is 55 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 2min to reduce the acidity of the surface of the wire, and is finally soaked in a saponification tank for 3min, wherein the temperature of a saponifier is 65 ℃.
(2) A coarse drawing process: and drawing the wire rod after acid pickling and phosphorization to 35.6mm by using a wire drawing machine, wherein the rough drawing reduction rate is 12.23%.
(3) And (3) annealing: the wire rod is put into a roller-hearth STC annealing furnace and then heated to 755 ℃ at the speed of 125 ℃/h, and the temperature is kept for 4.5h; then cooling to 720 ℃ at the speed of 18 ℃/h, and preserving heat for 4h; then the temperature is reduced to 580 ℃ at the speed of 12 ℃/h, then the furnace is stopped, the wire is discharged from the furnace, and the wire is naturally cooled to the room temperature in the air.
(4) A yellowing step: and soaking the annealed wire rod in hydrochloric acid with the mass fraction of 12% for 10min, and then placing the wire rod outdoors for 36h.
(5) A secondary acid pickling phosphating procedure: soaking the yellowed wire rod in hydrochloric acid with the mass fraction of 12% and the temperature of 25 ℃ for 7min, and then washing the wire rod for 1.5min by using a high-pressure water gun with the pressure of 0.35Mpa; then soaking the wire rod in a water tank for 1.5min to wash away residual hydrochloric acid on the surface of the wire rod, then soaking the wire rod in a surface conditioning tank for 1.5min, and soaking the wire rod in a phosphating tank for 12min, wherein the temperature of the phosphating tank is 55 ℃, and the used phosphating agent is a zinc phosphating agent; and soaking the phosphatized wire rod in a neutralization tank for 2min to reduce the acidity of the surface of the wire rod, and finally soaking in a saponification tank for 4min, wherein the temperature of a saponifier is 65 ℃.
(6) A fine drawing process: and (3) drawing the wire rod subjected to secondary acid cleaning and phosphorization to 35.40mm by using a wire drawing machine, wherein the fine drawing surface reduction rate is 1.12%.
The hardness, tensile strength, spheroidizing grade and quality of the wire rod refined by the socket wrench produced by the implementation are shown in table 2.
Example 6
The Widmannstatten structure of the hot-rolled wire rod used in the present example should be grade 0, the diameter of the wire rod should be 38mm, and the chemical composition and the mass percentage content of the hot-rolled wire rod are shown in Table 1.
The production method for refining the wire by using the socket wrench comprises the working procedures of acid pickling and phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling and phosphorization and fine drawing and drawing, and comprises the following specific process steps of:
(1) Acid pickling and phosphating working procedure: soaking the wire rod in 24 wt% hydrochloric acid at 40 deg.C for 30min, and washing the wire rod with a high pressure water gun at 0.5Mpa for 2 min; then soaking the wire rod in a water tank for 2min to wash out residual hydrochloric acid on the surface of the wire rod, then soaking the wire rod in a surface conditioning tank for 2min, and soaking the wire rod in a phosphating tank for 15min, wherein the temperature of the phosphating tank is 60 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 3min to reduce the acidity of the surface of the wire, and is finally soaked in a saponification tank for 5min, wherein the temperature of a saponifier is 70 ℃.
(2) A coarse drawing process: and drawing the wire rod after acid pickling and phosphorization to 35.50mm by using a wire drawing machine, wherein the rough drawing reduction rate is 12.73%.
(3) And (3) annealing: the wire is put into a roller-hearth STC annealing furnace and then heated to 760 ℃ at the speed of 150 ℃/h, and the temperature is kept for 5h; then cooling to 730 ℃ at the speed of 20 ℃/h, and preserving heat for 5h; then the temperature is reduced to 600 ℃ at the speed of 15 ℃/h, then the furnace is stopped, the wire is discharged from the furnace, and the wire is naturally cooled to the room temperature in the air.
(4) A yellowing step: and soaking the annealed wire rod in hydrochloric acid with the mass fraction of 16% for 10min, and then placing the wire rod outdoors for 48h.
(5) Secondary acid pickling phosphating procedure: soaking the etiolated wire rod in 16 wt% hydrochloric acid at 40 deg.C for 10min, and washing the wire rod with high pressure water gun at 0.5Mpa for 2 min; soaking in a water tank for 2min to wash out residual hydrochloric acid on the surface of the wire rod, soaking in a surface conditioning tank for 2min, and soaking in a phosphating tank for 15min, wherein the temperature of the phosphating tank is 60 ℃, and the used phosphating agent is a zinc phosphating agent; and soaking the phosphatized wire rod in a neutralization tank for 3min to reduce the acidity of the surface of the wire rod, and finally soaking in a saponification tank for 5min, wherein the temperature of a saponifier is 70 ℃.
(6) A fine drawing process: and (3) drawing the wire rod subjected to secondary acid cleaning and phosphorization to 35.2mm by using a wire drawing machine, wherein the fine drawing surface reduction rate is 1.68%.
The hardness, tensile strength, spheroidizing grade and quality of the wire rod refined by the socket wrench produced by the implementation are shown in table 2.
Example 7
The Widmannstatten structure of the hot-rolled wire rod used in the present example was grade 1, the diameter was 38mm, and the chemical composition and the mass percentage thereof are shown in Table 1.
The production method for refining the wire by using the socket wrench comprises the working procedures of acid pickling and phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling and phosphorization and fine drawing and drawing, and comprises the following specific process steps of:
(1) Acid pickling and phosphating working procedure: soaking the wire rod in hydrochloric acid with mass fraction of 22% and temperature of 25 deg.C for 23min, and washing the wire rod with high pressure water gun with pressure of 0.4Mpa for 1 min; soaking in a water tank for 2min to wash out residual hydrochloric acid on the surface of the wire rod, then soaking in a surface conditioning tank for 1min, and soaking in a phosphating tank for 12min, wherein the temperature of the phosphating tank is 57 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 2min to reduce the acidity of the surface of the wire, and is finally soaked in a saponification tank for 4min, wherein the temperature of a saponifier is 62 ℃.
(2) A coarse drawing process: the wire rod after acid pickling and phosphorization is drawn to 35.70mm by a wire drawing machine, and the rough drawing reduction rate is 11.74 percent.
(3) And (3) annealing: the wire rod is put into a roller hearth type STC annealing furnace and then heated to 756 ℃ at the speed of 130 ℃/h, and the temperature is kept for 4h; then cooling to 722 ℃ at the speed of 18 ℃/h, and preserving heat for 4h; then the temperature is reduced to 580 ℃ at the speed of 13 ℃/h, then the furnace is stopped, the wire is discharged from the furnace, and the wire is naturally cooled to the room temperature in the air.
(4) A yellowing step: and soaking the annealed wire rod in hydrochloric acid with the mass fraction of 11% for 7min, and then placing the wire rod outdoors for 30h.
(5) Secondary acid pickling phosphating procedure: soaking the etiolated wire rod in 28 deg.C hydrochloric acid at 12 wt% for 5min, and washing the wire rod with high pressure water gun at 0.3Mpa for 2 min; soaking in a water tank for 1min to wash out residual hydrochloric acid on the surface of the wire rod, then soaking in a surface conditioning tank for 1min, and soaking in a phosphating tank for 13min, wherein the temperature of the phosphating tank is 57 ℃, and the used phosphating agent is a zinc phosphating agent; and soaking the phosphatized wire rod in a neutralization tank for 1min to reduce the acidity of the surface of the wire rod, and finally soaking in a saponification tank for 4min, wherein the temperature of a saponifier is 66 ℃.
(6) A fine drawing process: and (3) drawing the wire rod subjected to secondary acid cleaning and phosphorization to 35.3mm by using a wire drawing machine, wherein the fine drawing surface reduction rate is 2.23%.
The hardness, tensile strength, spheroidizing grade and quality of the wire rod refined by the socket wrench produced by the implementation are shown in table 2.
Example 8
The widmannstatten structure of the hot-rolled wire rod used in this example was rated 0, the diameter was 40mm, and the chemical composition and mass percentage thereof are shown in table 1.
The production method for refining the wire by using the socket wrench comprises the working procedures of acid pickling and phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling and phosphorization and fine drawing and drawing, and comprises the following specific process steps of:
(1) Acid pickling and phosphating working procedure: soaking the wire rod in 20 wt% hydrochloric acid at 32 deg.C for 23min, and washing the wire rod with a high pressure water gun at 0.2Mpa for 2 min; soaking in a water tank for 2min to wash out residual hydrochloric acid on the surface of the wire rod, then soaking in a surface conditioning tank for 1min, and soaking in a phosphating tank for 11min, wherein the temperature of the phosphating tank is 52 ℃, and the phosphating agent used is a zinc phosphating agent; and soaking the phosphatized wire rod in a neutralization tank for 1min to reduce the acidity of the surface of the wire rod, and finally soaking in a saponification tank for 4min, wherein the temperature of a saponifier is 69 ℃.
(2) A coarse drawing process: the wire rod after acid pickling and phosphorization is drawn to 35.85mm by a wire drawing machine, and the rough drawing reduction rate is 19.67 percent.
(3) And (3) annealing: the wire is put into a roller-hearth STC annealing furnace and then heated to 752 ℃ at the speed of 140 ℃/h, and the temperature is kept for 4.5h; then cooling to 718 ℃ at the speed of 17 ℃/h, and preserving heat for 4.5h; then the temperature is reduced to 566 ℃ at the speed of 13 ℃/h, then the furnace is stopped, the wire rod is discharged from the furnace, and the wire rod is naturally cooled to the room temperature in the air.
(4) A yellowing process: and soaking the annealed wire rod in 14% hydrochloric acid for 9min, and then placing the wire rod outdoors for 40h.
(5) Secondary acid pickling phosphating procedure: soaking the yellowed wire rod in hydrochloric acid with the mass fraction of 10% and the temperature of 25 ℃ for 7min, and then washing the wire rod for 1min by using a high-pressure water gun with the pressure of 0.3Mpa; then soaking the wire rod in a water tank for 1min to wash away residual hydrochloric acid on the surface of the wire rod, then soaking the wire rod in a surface conditioning tank for 2min, and soaking the wire rod in a phosphating tank for 11min, wherein the temperature of the phosphating tank is 51 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 2min to reduce the acidity of the surface of the wire, and is finally soaked in a saponification tank for 3min, wherein the temperature of a saponifier is 62 ℃.
(6) A fine drawing process: and (3) drawing the wire rod subjected to secondary acid cleaning and phosphorization to 35.40mm by using a wire drawing machine, wherein the fine drawing surface reduction rate is 2.49%.
The hardness, tensile strength, spheroidizing grade and quality of the wire rod refined by the socket wrench produced by the implementation are shown in table 2.
TABLE 1 chemical composition and content (wt%) of hot rolled wire rods of examples
In table 1, the balance is Fe and inevitable impurities.
TABLE 2 mechanical properties of the socket wrench refined wire in each example
Claims (10)
1. A production method for refining wire by using a socket wrench is characterized by comprising the working procedures of acid pickling and phosphorization, rough drawing and drawing, annealing, yellowing, secondary acid pickling and phosphorization and fine drawing and drawing;
in the acid pickling phosphating procedure, the Widmannstatten structure of the used hot rolled wire rod is 0 grade or 1 grade, and the diameter is 38-40 mm;
in the yellowing process, the annealed wire is soaked in hydrochloric acid with the mass fraction of 8-16% for 5-10 min and then placed outdoors for 24-48 h;
the diameter of the socket wrench refined wire is 35.10-35.50 mm.
2. The production method of the box spanner refined wire rod as claimed in claim 1, wherein the hot rolled wire rod comprises the following chemical components by weight percent: 0.27 to 0.32 percent of C, 0.04 to 0.09 percent of Si, 0.70 to 1.00 percent of Mn, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, 0.30 to 0.50 percent of Cr, 0.10 to 0.15 percent of V, more than or equal to 0.0006 percent of B, and the balance of Fe and inevitable impurities.
3. The method for producing a refined wire rod by using a socket wrench as claimed in claim 2, wherein the pickling phosphating step comprises the steps of: soaking the wire rod in hydrochloric acid with the mass fraction of 16-24% and the temperature of 10-40 ℃ for 20-30 min, then washing the wire rod by using a high-pressure water gun, and then sequentially placing the wire rod in a water tank, a surface conditioning tank, a phosphating tank, a neutralization tank and a saponification tank for soaking.
4. The production method of the socket wrench refined wire rod according to claim 3, wherein the acid pickling phosphating process is performed by flushing with a high-pressure water gun for 1-2 min, and the pressure of the high-pressure water gun is 0.2-0.5 Mpa; the wire is soaked in a water tank for 1-2 min, soaked in a surface conditioning tank for 1-2 min and soaked in a phosphating tank for 10-15 min, the temperature of the phosphating tank is 50-60 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 1-3 min and is soaked in a saponification tank for 2-5 min, and the temperature of a saponifier is 60-70 ℃.
5. The method of claim 4, wherein the rough drawing step is performed to draw the wire to 35.40 to 35.90mm, and the reduction of the rough drawing is 10.0 to 20%.
6. The production method of a ring spanner refined wire rod according to claim 5, characterized in that, in the annealing step, the wire rod is put into a roller-hearth STC annealing furnace and then heated up to 750-760 ℃ at a speed of 100-150 ℃/h, and the temperature is kept for 4-5 h; then cooling to 710-730 ℃ at the speed of 16-20 ℃/h, and preserving heat for 3-5 h; then the temperature is reduced to 560-600 ℃ at the speed of 8-15 ℃/h, and then the furnace is stopped, the wire is discharged from the furnace, and the wire is naturally cooled to the room temperature in the air.
7. The method as claimed in claim 6, wherein the secondary acid pickling and phosphating step comprises immersing the wire rod in 8-16 mass% hydrochloric acid at 10-40 ℃ for 5-10 min, washing the wire rod with a high pressure water gun, and immersing the wire rod in a water tank, a surface conditioning tank, a phosphating tank, a neutralization tank and a saponification tank.
8. The method for producing refined wire rod by using socket wrench as claimed in claim 7, wherein the secondary acid pickling phosphating step is carried out by flushing with a high pressure water gun for 1-2 min, wherein the pressure of the high pressure water gun is 0.2-0.5 Mpa; the wire is soaked in a water tank for 1-2 min, soaked in a surface conditioning tank for 1-2 min and soaked in a phosphating tank for 10-15 min, the temperature of the phosphating tank is 50-60 ℃, and the used phosphating agent is a zinc phosphating agent; the phosphatized wire is soaked in a neutralization tank for 1-3 min and is soaked in a saponification tank for 2-5 min, and the temperature of a saponifier is 60-70 ℃.
9. The production method of a ring spanner refined wire according to claim 8, wherein said finish drawing step is a step of drawing the wire to 35.10 to 35.50mm with a finish reduction ratio of 1.0 to 3%.
10. The method for producing a ring spanner refined wire rod according to any one of claims 1 to 9, wherein the ring spanner refined wire rod produced has a hardness of 90HRB or less, a tensile strength of 520 to 550Mpa, a spheroidization grade of 4 or 5, and a phosphate film mass of 10 to 12g/m 2 。
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757647A (en) * | 2013-08-16 | 2014-04-30 | 南通瑞丽精密机电设备科技有限公司 | Steel material acid-washing and phosphorization method |
| CN104209705A (en) * | 2014-08-22 | 2014-12-17 | 无锡市第二标准件制造有限公司 | Manufacturing process of screw |
| US20150013716A1 (en) * | 2012-01-18 | 2015-01-15 | Jfe Steel Corporation | Method for prevention of yellowing on surface of steel sheet after pickling |
| CN105624563A (en) * | 2015-12-31 | 2016-06-01 | 钢铁研究总院 | High-strength bolt steel capable of shortening wire rod procedures and wire rod modifying process thereof |
| KR101786348B1 (en) * | 2016-05-23 | 2017-10-18 | 주식회사 포스코 | Anti-yellowing treated steel sheet, and method for surface treating the anti-yellowing treated steel sheet |
| CN107297597A (en) * | 2016-04-16 | 2017-10-27 | 东莞市华钢金属材料有限公司 | A kind of production method of automobile trunk elevating lever |
| CN108130526A (en) * | 2017-12-18 | 2018-06-08 | 无锡科茂金属材料有限公司 | A kind of wire surface phosphatization membrane treatment process of rare earth zinc steel strand wires |
| CN108160741A (en) * | 2017-12-28 | 2018-06-15 | 东莞科力线材技术有限公司 | Press part steel alloy wire rod preparation method, press part and its hardening and tempering process |
| CN109338765A (en) * | 2018-09-10 | 2019-02-15 | 泰州华泽金属工业有限公司 | A kind of wirerope manufacture craft with high intensity with Corrosion Protection |
| CN109609738A (en) * | 2018-12-27 | 2019-04-12 | 东莞科力线材技术有限公司 | Mobile phone big homalocephalus precision screw wire rod and preparation method thereof |
-
2022
- 2022-06-27 CN CN202210735245.3A patent/CN115198180B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150013716A1 (en) * | 2012-01-18 | 2015-01-15 | Jfe Steel Corporation | Method for prevention of yellowing on surface of steel sheet after pickling |
| CN103757647A (en) * | 2013-08-16 | 2014-04-30 | 南通瑞丽精密机电设备科技有限公司 | Steel material acid-washing and phosphorization method |
| CN104209705A (en) * | 2014-08-22 | 2014-12-17 | 无锡市第二标准件制造有限公司 | Manufacturing process of screw |
| CN105624563A (en) * | 2015-12-31 | 2016-06-01 | 钢铁研究总院 | High-strength bolt steel capable of shortening wire rod procedures and wire rod modifying process thereof |
| CN107297597A (en) * | 2016-04-16 | 2017-10-27 | 东莞市华钢金属材料有限公司 | A kind of production method of automobile trunk elevating lever |
| KR101786348B1 (en) * | 2016-05-23 | 2017-10-18 | 주식회사 포스코 | Anti-yellowing treated steel sheet, and method for surface treating the anti-yellowing treated steel sheet |
| CN108130526A (en) * | 2017-12-18 | 2018-06-08 | 无锡科茂金属材料有限公司 | A kind of wire surface phosphatization membrane treatment process of rare earth zinc steel strand wires |
| CN108160741A (en) * | 2017-12-28 | 2018-06-15 | 东莞科力线材技术有限公司 | Press part steel alloy wire rod preparation method, press part and its hardening and tempering process |
| CN109338765A (en) * | 2018-09-10 | 2019-02-15 | 泰州华泽金属工业有限公司 | A kind of wirerope manufacture craft with high intensity with Corrosion Protection |
| CN109609738A (en) * | 2018-12-27 | 2019-04-12 | 东莞科力线材技术有限公司 | Mobile phone big homalocephalus precision screw wire rod and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘泽亚, 欧光清: "XS WRCH10K盘条生产冷镦钢丝试验研究", 金属制品, vol. 30, no. 01, pages 16 - 17 * |
| 曹清: "用高速线材生产钢丝的试验研究", 金属制品, vol. 24, no. 05, pages 15 - 20 * |
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