CN113462868A - Efficient preparation method of reinforced metal cluster long fiber - Google Patents
Efficient preparation method of reinforced metal cluster long fiber Download PDFInfo
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- CN113462868A CN113462868A CN202110660172.1A CN202110660172A CN113462868A CN 113462868 A CN113462868 A CN 113462868A CN 202110660172 A CN202110660172 A CN 202110660172A CN 113462868 A CN113462868 A CN 113462868A
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- 239000002184 metal Substances 0.000 title claims abstract description 60
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 60
- 239000000835 fiber Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000005554 pickling Methods 0.000 claims abstract description 72
- 238000000137 annealing Methods 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000009713 electroplating Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000004321 preservation Methods 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 238000004381 surface treatment Methods 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 69
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 40
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000002905 metal composite material Substances 0.000 claims description 20
- 235000010288 sodium nitrite Nutrition 0.000 claims description 20
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 15
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 claims description 15
- 239000003599 detergent Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005491 wire drawing Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 description 6
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
-
- 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
-
- 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
- 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
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a high-efficiency preparation method of reinforced metal bundling long fiber, comprising the following steps of S1: selecting a metal bar blank, heating the bar blank to 600-700 ℃, preserving heat for 50-120 minutes, rolling the bar blank after heat preservation into a bar, and removing oxide skin on the surface of the bar by a mechanical processing mode, wherein the total processing rate of rolling is 80-90%; s2, surface treatment: electroplating copper on the surface of the bar blank to generate an isolating layer, wherein the thickness of the isolating layer is 2-5 microns; s3, drawing the wire: the metal bar blank is firstly drawn into a wire material, then annealing and pickling are carried out, the wire material is prepared into a wire rod, and then the drawing, annealing and pickling processes are carried out again, so that each fiber in the prepared wire bundle is subjected to the annealing and pickling processes, the metal bundle has good tensile resistance and the toughness of the metal bundle can be improved.
Description
Technical Field
The invention relates to the technical field of metal fiber processing, in particular to an efficient preparation method of an enhanced metal bundling long fiber.
Background
The metal fiber has good electric conduction, heat conduction, magnetic conduction and high temperature resistance due to the characteristics of the metal fiber, and is low in cost and widely applied to the industries of electronics, chemical engineering, machinery, textile and food boarding. The conventional method for manufacturing the metal fiber is a drawing method, when the metal fiber is manufactured by the drawing method, metal blanks need to be drawn, annealed and pickled, when the existing metal fiber is manufactured by the drawing method, the drawn metal wires are directly bundled into a group and then annealed and pickled, so that each group of metal wires in the metal wire bundle cannot be treated by an annealing and pickling process, the overall performance is influenced, and the damage of pickling solution broken metal fibers on the market is large.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an efficient preparation method of an enhanced metal bundling long fiber.
In order to achieve the purpose, the invention provides the following technical scheme: an efficient preparation method of reinforced metal bundling long fiber comprises the following steps:
s1, blank processing: selecting a metal bar blank, heating the bar blank to 600-700 ℃, preserving heat for 50-120 minutes, rolling the bar blank after heat preservation into a bar, and removing oxide skin on the surface of the bar by a mechanical processing mode, wherein the total processing rate of rolling is 80-90%;
s2, surface treatment: electroplating copper on the surface of the bar blank to generate an isolating layer, wherein the thickness of the isolating layer is 2-5 microns;
s3, drawing the wire: putting the coated bar blank into a hole die for repeated stretching to obtain a wire material;
s4, wire annealing and pickling solution: putting the stretched metal wire into an electric furnace for annealing treatment, preserving the heat in the furnace for 10-60 min, heating the electric furnace at 500-750 ℃, putting the annealed wire into a pickling solution for primary pickling for 14-26 min;
s5, annealing and acid washing of tows: integrating the pickled metal wires into a bundle, putting the bundle into a steel pipe to form a metal composite, putting the metal composite into a hole die to be repeatedly stretched until the diameter of the metal composite reaches 20 mu m, carrying out vacuum annealing treatment on the metal composite after being pulled, putting the metal wires after being subjected to the vacuum annealing treatment into a pickling solution to carry out final pickling to obtain a metal long fiber bundle;
s6, cleaning and drying: and cleaning and drying the pickled long metal fiber bundle.
As further preferable in the present technical solution: the pickling solution comprises the following components: 7-9 parts of hydrochloric acid, 1-4 parts of nitrilotriacetic acid, 0.2-0.5 part of diethylenetriamine, 0.5-1.5 parts of sodium nitrite, 2-4 parts of detergent and the balance of water.
As further preferable in the present technical solution: the pickling solution comprises the following components: 7 parts of hydrochloric acid, 1 part of nitrilotriacetic acid, 0.2 part of diethylenetriamine, 0.5 part of sodium nitrite, 2 parts of detergent and the balance of water.
As further preferable in the present technical solution: the pickling solution comprises the following components: 9 parts of hydrochloric acid, 4 parts of nitrilotriacetic acid, 0.5 part of diethylenetriamine, 1.5 parts of sodium nitrite, 4 parts of detergent and the balance of water.
As further preferable in the present technical solution: the preparation steps of the pickling solution comprise:
(1) firstly, adding water into a reaction kettle, then adding sodium nitrite, and stirring and adding until the sodium nitrite is completely dissolved;
(2) then adding hydrochloric acid, nitrilotriacetic acid and diethylenetriamine, and stirring to dissolve completely;
(3) finally, washing is added, and the mixture is stirred for 30 minutes to obtain the pickling solution.
Preferably, in the step S2, when copper is plated on the surface of the bar blank in the surface treatment, the bar blank is placed in an electroplating solution with a pH value of 7.5-8.1, the temperature is 18-30 ℃, the current density is 1-1.5A/dm 3, and the electroplating time is 25-32 minutes.
As further preferable in the present technical solution: in the step S5, annealing and pickling the tows, the vacuum degree of the vacuum annealing treatment is below 8.0 multiplied by 10 < -2 > Pa, the temperature is 600-680 ℃, and the heat preservation time is 60-90 minutes.
As further preferable in the present technical solution: in the step S4, the temperature of the pickling solution is 70 to 75 ℃ when the wire material is pickled, and in the step S5, the temperature of the pickling solution is 65 to 75 ℃ when the wire material is pickled.
As further preferable in the present technical solution: when the pickling solution is prepared for use, water needs to be added for dilution, wherein the preparation ratio of the pickling solution to the water is 1: 30.
as further preferable in the present technical solution: in S3 and wire drawing, the pass deformation is controlled to be 12-21% and the total deformation is controlled to be 75-85% in the drawing process.
The invention has the technical effects and advantages that:
1. according to the invention, the metal bar blank is firstly drawn into the wire material and then is subjected to annealing and pickling, and the wire material is prepared into the wire material and then is subjected to the drawing, annealing and pickling processes again, so that each fiber in the prepared wire bundle is subjected to the annealing and pickling processes, and the metal bundle has good tensile resistance and can be improved in toughness.
2. According to the pickling solution, hydrochloric acid, nitrilotriacetic acid, diethylenetriamine, sodium nitrite and washing detergent are mixed with water to form the pickling solution, the pickling solution is environment-friendly and efficient, is low in acid pollution, can be used after being diluted by adding water during use, is low in concentration, and is small in size error of a product after pickling, so that damage to the product is effectively reduced.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An efficient preparation method of reinforced metal bundling long fiber comprises the following steps:
s1, blank processing: selecting a metal bar blank, heating the bar blank to 600-700 ℃, preserving heat for 50-120 minutes, rolling the bar blank after heat preservation into a bar, and removing oxide skin on the surface of the bar by a mechanical processing mode, wherein the total processing rate of rolling is 80-90%;
s2, surface treatment: putting the bar blank into an electroplating solution with the pH value of 7.5-8.1, electroplating for 25-32 minutes at the temperature of 18-30 ℃, at the current density of 1-1.5A/dm 3, and electroplating copper on the surface of the bar blank to generate an isolation layer, wherein the thickness of the isolation layer is 2-5 microns;
s3, drawing the wire: putting the coated bar blank into a hole die for repeated stretching to obtain a wire material, wherein the pass deformation is controlled to be 12-21% and the total deformation is 75-85% in the drawing process;
s4, preparing an acid washing solution: selecting 7 parts of hydrochloric acid, 1 part of nitrilotriacetic acid, 0.2 part of diethylenetriamine, 0.5 part of sodium nitrite, 2 parts of detergent and the balance of water, firstly preparing water into a reaction kettle, then adding the sodium nitrite, stirring and adding until the sodium nitrite is completely dissolved, then adding the hydrochloric acid, the nitrilotriacetic acid and the diethylenetriamine, stirring and dissolving, finally adding the detergent, stirring for 30 minutes to obtain a pickling solution, and when the pickling solution is prepared and used, adding water for dilution, wherein the preparation proportion of the pickling solution and the water is 1: 30.
s5, wire annealing and pickling solution: putting the stretched metal wire into an electric furnace for annealing treatment, and preserving heat in the furnace for 10-60 min, wherein the heating temperature of the electric furnace is 500-750 ℃, putting the annealed wire into a pickling solution for primary pickling for 14-26 min, and the temperature of the pickling solution is 70-75 ℃;
s6, annealing and acid washing of tows: integrating the pickled metal wires into a bundle, putting the bundle into a steel pipe to form a metal composite, putting the metal composite into a hole die for repeated stretching until the diameter of the metal composite reaches 20 mu m, carrying out vacuum annealing treatment on the drawn metal composite, wherein the vacuum degree of the vacuum annealing treatment is below 8.0 multiplied by 10 < -2 > Pa, the temperature is 600-680 ℃, the heat preservation time is 60-90 minutes, putting the metal wires subjected to the vacuum annealing treatment into a pickling solution for final pickling, and the temperature of the pickling solution is 65-75 ℃ to obtain a metal long fiber bundle;
s6, cleaning and drying: and cleaning and drying the pickled long metal fiber bundle.
Example 2
An efficient preparation method of reinforced metal bundling long fiber comprises the following steps:
s1, blank processing: selecting a metal bar blank, heating the bar blank to 600-700 ℃, preserving heat for 50-120 minutes, rolling the bar blank after heat preservation into a bar, and removing oxide skin on the surface of the bar by a mechanical processing mode, wherein the total processing rate of rolling is 80-90%;
s2, surface treatment: putting the bar blank into an electroplating solution with the pH value of 7.5-8.1, electroplating for 25-32 minutes at the temperature of 18-30 ℃, at the current density of 1-1.5A/dm 3, and electroplating copper on the surface of the bar blank to generate an isolation layer, wherein the thickness of the isolation layer is 2-5 microns;
s3, drawing the wire: putting the coated bar blank into a hole die for repeated stretching to obtain a wire material, wherein the pass deformation is controlled to be 12-21% and the total deformation is 75-85% in the drawing process;
s4, preparing an acid washing solution: selecting 8 parts of hydrochloric acid, 3 parts of nitrilotriacetic acid, 0.4 part of diethylenetriamine, 1 part of sodium nitrite, 3 parts of detergent and the balance of water, firstly adding water into a reaction kettle, then adding the sodium nitrite, stirring and adding until the sodium nitrite is completely dissolved, then adding the hydrochloric acid, the nitrilotriacetic acid and the diethylenetriamine, stirring and dissolving, finally adding the detergent, stirring for 30 minutes to obtain a pickling solution, and when the pickling solution is prepared and used, adding water for dilution, wherein the preparation proportion of the pickling solution and the water is 1: 30.
s5, wire annealing and pickling solution: putting the stretched metal wire into an electric furnace for annealing treatment, and preserving heat in the furnace for 10-60 min, wherein the heating temperature of the electric furnace is 500-750 ℃, putting the annealed wire into a pickling solution for primary pickling for 14-26 min, and the temperature of the pickling solution is 70-75 ℃;
s6, annealing and acid washing of tows: integrating the pickled metal wires into a bundle, putting the bundle into a steel pipe to form a metal composite, putting the metal composite into a hole die for repeated stretching until the diameter of the metal composite reaches 20 mu m, carrying out vacuum annealing treatment on the drawn metal composite, wherein the vacuum degree of the vacuum annealing treatment is below 8.0 multiplied by 10 < -2 > Pa, the temperature is 600-680 ℃, the heat preservation time is 60-90 minutes, putting the metal wires subjected to the vacuum annealing treatment into a pickling solution for final pickling, and the temperature of the pickling solution is 65-75 ℃ to obtain a metal long fiber bundle;
s6, cleaning and drying: and cleaning and drying the pickled long metal fiber bundle.
Example 3
An efficient preparation method of reinforced metal bundling long fiber comprises the following steps:
s1, blank processing: selecting a metal bar blank, heating the bar blank to 600-700 ℃, preserving heat for 50-120 minutes, rolling the bar blank after heat preservation into a bar, and removing oxide skin on the surface of the bar by a mechanical processing mode, wherein the total processing rate of rolling is 80-90%;
s2, surface treatment: putting the bar blank into an electroplating solution with the pH value of 7.5-8.1, electroplating for 25-32 minutes at the temperature of 18-30 ℃, at the current density of 1-1.5A/dm 3, and electroplating copper on the surface of the bar blank to generate an isolation layer, wherein the thickness of the isolation layer is 2-5 microns;
s3, drawing the wire: putting the coated bar blank into a hole die for repeated stretching to obtain a wire material, wherein the pass deformation is controlled to be 12-21% and the total deformation is 75-85% in the drawing process;
s4, preparing an acid washing solution: selecting 9 parts of hydrochloric acid, 4 parts of nitrilotriacetic acid, 0.5 part of diethylenetriamine, 1.5 parts of sodium nitrite, 4 parts of detergent and the balance of water, firstly preparing water into a reaction kettle, then adding the sodium nitrite, stirring and adding until the sodium nitrite is completely dissolved, then adding the hydrochloric acid, the nitrilotriacetic acid and the diethylenetriamine, stirring and dissolving, finally adding the detergent, stirring for 30 minutes to obtain a pickling solution, and when the pickling solution is prepared and used, adding water for dilution, wherein the preparation proportion of the pickling solution and the water is 1: 30.
s5, wire annealing and pickling solution: putting the stretched metal wire into an electric furnace for annealing treatment, and preserving heat in the furnace for 10-60 min, wherein the heating temperature of the electric furnace is 500-750 ℃, putting the annealed wire into a pickling solution for primary pickling for 14-26 min, and the temperature of the pickling solution is 70-75 ℃;
s6, annealing and acid washing of tows: integrating the pickled metal wires into a bundle, putting the bundle into a steel pipe to form a metal composite, putting the metal composite into a hole die for repeated stretching until the diameter of the metal composite reaches 20 mu m, carrying out vacuum annealing treatment on the drawn metal composite, wherein the vacuum degree of the vacuum annealing treatment is below 8.0 multiplied by 10 < -2 > Pa, the temperature is 600-680 ℃, the heat preservation time is 60-90 minutes, putting the metal wires subjected to the vacuum annealing treatment into a pickling solution for final pickling, and the temperature of the pickling solution is 65-75 ℃ to obtain a metal long fiber bundle;
s6, cleaning and drying: and cleaning and drying the pickled long metal fiber bundle.
The long metal fiber bundles prepared in example 1, example 2 and example 3 were subjected to static mechanical property tests, and the results were as follows:
| example 1 | Example 2 | Example 3 | |
| Tensile strength (Mpa) | 651 | 639 | 650 |
| Elongation (%) | 17.22 | 18.4 | 19.1 |
| Tensile strain | 23.6 | 19.4 | 21.6 |
The metal bundle prepared by the preparation method has good tensile resistance, and the toughness of the metal bundle can be improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. An efficient preparation method of reinforced metal bundling long fiber is characterized in that: the method comprises the following steps:
s1, blank processing: selecting a metal bar blank, heating the bar blank to 600-700 ℃, preserving heat for 50-120 minutes, rolling the bar blank after heat preservation into a bar, and removing oxide skin on the surface of the bar by a mechanical processing mode, wherein the total processing rate of rolling is 80-90%;
s2, surface treatment: electroplating copper on the surface of the bar blank to generate an isolating layer, wherein the thickness of the isolating layer is 2-5 microns;
s3, drawing the wire: putting the coated bar blank into a hole die for repeated stretching to obtain a wire material;
s4, wire annealing and pickling solution: putting the stretched metal wire into an electric furnace for annealing treatment, preserving the heat in the furnace for 10-60 min, heating the electric furnace at 500-750 ℃, putting the annealed wire into a pickling solution for primary pickling for 14-26 min;
s5, annealing and acid washing of tows: integrating the pickled metal wires into a bundle, putting the bundle into a steel pipe to form a metal composite, putting the metal composite into a hole die to be repeatedly stretched until the diameter of the metal composite reaches 20 mu m, carrying out vacuum annealing treatment on the metal composite after being pulled, putting the metal wires after being subjected to the vacuum annealing treatment into a pickling solution to carry out final pickling to obtain a metal long fiber bundle;
s6, cleaning and drying: and cleaning and drying the pickled long metal fiber bundle.
2. The method of claim 1, wherein the method comprises the steps of: the pickling solution comprises the following components: 7-9 parts of hydrochloric acid, 1-4 parts of nitrilotriacetic acid, 0.2-0.5 part of diethylenetriamine, 0.5-1.5 parts of sodium nitrite, 2-4 parts of detergent and the balance of water.
3. The method of claim 2, wherein the method comprises the steps of: the pickling solution comprises the following components: 7 parts of hydrochloric acid, 1 part of nitrilotriacetic acid, 0.2 part of diethylenetriamine, 0.5 part of sodium nitrite, 2 parts of detergent and the balance of water.
4. The method of claim 2, wherein the method comprises the steps of: the pickling solution comprises the following components: 9 parts of hydrochloric acid, 4 parts of nitrilotriacetic acid, 0.5 part of diethylenetriamine, 1.5 parts of sodium nitrite, 4 parts of detergent and the balance of water.
5. The method of claim 2, wherein the method comprises the steps of: the preparation steps of the pickling solution comprise:
firstly, adding water into a reaction kettle, then adding sodium nitrite, and stirring and adding until the sodium nitrite is completely dissolved;
then adding hydrochloric acid, nitrilotriacetic acid and diethylenetriamine, and stirring to dissolve completely;
finally, washing is added, and the mixture is stirred for 30 minutes to obtain the pickling solution.
6. The method of claim 1, wherein the method comprises the steps of: in step S2, when copper is plated on the surface of the bar blank, the bar blank is placed in an electroplating solution with a pH value of 7.5-8.1 at a temperature of 18-30 ℃ and a current density of 1-1.5A/dm3And the electroplating time is 25-32 minutes.
7. The method of claim 1, wherein the method comprises the steps of: in step S5, annealing and pickling the tow, the degree of vacuum of the vacuum annealing treatment was 8.0X 10-2Pa below, 600-680 ℃, 60-up to 60 DEG for heat preservationFor 90 minutes.
8. The method of claim 1, wherein the method comprises the steps of: in the step S4, the temperature of the pickling solution is 70 to 75 ℃ when the wire material is pickled, and in the step S5, the temperature of the pickling solution is 65 to 75 ℃ when the wire material is pickled.
9. The method of claim 1, wherein the method comprises the steps of: when the pickling solution is prepared for use, water needs to be added for dilution, wherein the preparation ratio of the pickling solution to the water is 1: 30.
10. the method of claim 1, wherein the method comprises the steps of: in S3 and wire drawing, the pass deformation is controlled to be 12-21% and the total deformation is controlled to be 75-85% in the drawing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110660172.1A CN113462868A (en) | 2021-06-15 | 2021-06-15 | Efficient preparation method of reinforced metal cluster long fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110660172.1A CN113462868A (en) | 2021-06-15 | 2021-06-15 | Efficient preparation method of reinforced metal cluster long fiber |
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| CN114713658A (en) * | 2022-04-21 | 2022-07-08 | 湖南惠同新材料股份有限公司 | Method for manufacturing titanium fiber |
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