阅读说明：本技术 一种超细不锈钢丝镀镍方法 (Nickel plating method for superfine stainless steel wire ) 是由 杨飞鹏 马文柱 于 2021-08-20 设计创作，主要内容包括：本发明涉及一种超细不锈钢丝镀镍方法,一种超细不锈钢丝镀镍方法,将不锈钢丝放置在电镀池中并浸泡在电镀液中,电镀用电流的电流密度为2A／d㎡～4A／d㎡,所述电镀液的PH值为3至5,所述电镀液的温度为45摄氏度至60摄氏度；所述电镀液包括：硫酸镍250g／L～350g／L、氯化镍30g／L～60g／L、硼酸30g／L～40g／L、抛光剂0g／L～10g／L。通过精确科学地控制电镀用电流的电流密度、电镀液的PH值以及电镀液的温度与独特的电镀液配方结合对不锈钢丝进行电镀处理。提高了不锈钢丝表面电镀形成的镀镍层的韧性和延展性,避免了在对不锈钢丝进行拉拔加工时不锈钢的镀镍层产生裂纹,进一步地提高了不锈钢丝的可焊性和耐腐蚀性。(The invention relates to a nickel plating method for a superfine stainless steel wire, which is characterized in that the stainless steel wire is placed in an electroplating pool and is soaked in electroplating solution, the current density of the current for electroplating is 2-4A/d of square meter, the PH value of the electroplating solution is 3-5, and the temperature of the electroplating solution is 45-60 ℃; the plating solution includes: 250 g/L-350 g/L of nickel sulfate, 30 g/L-60 g/L of nickel chloride, 30 g/L-40 g/L of boric acid and 0 g/L-10 g/L of polishing agent. The stainless steel wire is electroplated by precisely and scientifically controlling the current density of the electroplating current, the pH value of the electroplating solution and the temperature of the electroplating solution and combining with a unique electroplating solution formula. The toughness and the ductility of the nickel plating layer formed on the surface of the stainless steel wire by electroplating are improved, cracks generated in the nickel plating layer of the stainless steel wire during drawing processing of the stainless steel wire are avoided, and the weldability and the corrosion resistance of the stainless steel wire are further improved.)

1. A superfine stainless steel wire nickel plating method is characterized in that a stainless steel wire is placed in an electroplating pool and soaked in electroplating solution, the current density of the current for electroplating is 2A/d square meter to 4A/d square meter, the PH value of the electroplating solution is 3 to 5, and the temperature of the electroplating solution is 45 to 60 ℃; the plating solution includes: 250 g/L-350 g/L of nickel sulfate, 30 g/L-60 g/L of nickel chloride, 30 g/L-40 g/L of boric acid and 0 g/L-10 g/L of polishing agent.

2. A method for plating nickel on ultra-fine stainless steel wire according to claim 1, wherein the PH of said plating solution is 3.5 to 4.5.

3. A method for plating nickel on an ultra-fine stainless steel wire according to claim 1, wherein the PH of said plating solution is 4.

4. A method for plating nickel on superfine stainless steel wire according to claim 1, wherein the current density of the current for electroplating is 2.3A/d square meter to 3.5A/d square meter.

5. A method for plating nickel on an ultra-fine stainless steel wire according to claim 1, wherein the current density of the plating current is 2.8A/d square meter.

6. The method for plating nickel on ultra-fine stainless steel wire according to claim 1, wherein the temperature of the plating solution is 48 to 55 degrees celsius.

7. A method for plating nickel on ultra-fine stainless steel wire according to claim 1, wherein the temperature of the plating solution is 50 ℃.

8. The method for plating nickel on ultra-fine stainless steel wire according to claim 1, wherein the plating solution comprises 32-38 g/L boric acid.

9. A method for plating nickel on ultra-fine stainless steel wire according to claim 1, wherein said plating solution comprises 35 g/L boric acid.

10. A method for plating nickel on ultra-fine stainless steel wire according to claim 1, wherein the plating solution comprises nickel chloride 40-50 g/L.

Technical Field

The invention relates to the field of stainless steel wire nickel plating, in particular to a superfine stainless steel wire nickel plating method.

Background

Electroplating is a process of plating a thin layer of other metals or alloys on the surface of some metals by using the principle of electrolysis, and is a process of attaching a layer of metal film on the surface of a metal or other material workpiece by using the action of electrolysis so as to prevent the metal from being oxidized. In order to eliminate the interference of other cations and make the coating uniform and firm, a solution containing the metal cations of the coating is used as an electroplating solution to keep the concentration of the metal cations of the coating constant. The purpose of electroplating is to plate a metal coating on a substrate, altering the surface properties or dimensions of the substrate. Electroplating can enhance corrosion resistance, increase hardness, prevent abrasion, and improve conductivity, smoothness, and heat resistance of metal.

Because the stainless steel wire has small diameter and small surface area, the process requirement of the stainless steel wire nickel plating is more precise, and when the traditional stainless steel wire nickel plating process is used for stainless steel wire nickel plating, the nickel plating layer of the stainless steel wire is easy to crack, so that the tinning property and the corrosion resistance of the stainless steel wire are reduced. In addition, the stainless steel material belongs to an inert metal material, a passive film on the surface of the stainless steel wire is difficult to clean and acid wash, and the passive film easily causes that the outer layer of the stainless steel wire cannot form a nickel-plated layer with excellent binding force.

Disclosure of Invention

Therefore, it is necessary to provide a method for plating nickel on an ultra-fine stainless steel wire and a method for manufacturing the same.

A method for plating nickel on a superfine stainless steel wire comprises the steps of placing the stainless steel wire in an electroplating pool and soaking the stainless steel wire in electroplating solution, wherein the current density of the current for electroplating is 2A/d-4A/d, the pH value of the electroplating solution is 3-5, and the temperature of the electroplating solution is 45-60 ℃; the plating solution includes: 250 g/L-350 g/L of nickel sulfate, 30 g/L-60 g/L of nickel chloride, 30 g/L-40 g/L of boric acid and 0 g/L-10 g/L of polishing agent.

In one embodiment, the pH of the plating solution is 3.5 to 4.5.

In one embodiment, the plating solution has a pH of 4.

In one embodiment, the current density of the electroplating current is from 2.3A/d square meter to 3.5A/d square meter.

In one embodiment, the current density of the electroplating current is 2.8A/d square meter.

In one embodiment, the temperature of the plating solution is 48 to 55 degrees celsius.

In one embodiment, the temperature of the plating solution is 50 degrees Celsius.

In one embodiment, the electroplating solution comprises 32 g/L to 38 g/L boric acid.

In one embodiment, the plating solution includes 35 g/L boric acid.

In one embodiment, the electroplating solution comprises 40 g/L-50 g/L of nickel chloride.

The method for plating the nickel on the superfine stainless steel wire and the electroplating treatment of the stainless steel wire are carried out by accurately and scientifically controlling the current density of the current for electroplating, the pH value of the electroplating solution and the temperature of the electroplating solution and combining with a unique electroplating solution formula. The toughness and the ductility of the nickel plating layer formed on the surface of the stainless steel wire by electroplating are improved, cracks generated in the nickel plating layer of the stainless steel wire during drawing processing of the stainless steel wire are avoided, and the weldability and the corrosion resistance of the stainless steel wire are further improved.

Drawings

FIG. 1 is a table of the components of a plating solution in one example;

FIG. 2 is a graph of the trend of nickel plated stainless steel wire and high carbon steel in the salt spray test in one example.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and 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.

A method for plating nickel on superfine stainless steel wire, placing stainless steel wire in plating pool and immersing in plating solution, the current density of current for plating is 2A/d-4A/d, furthermore, in one embodiment, the current density of current for plating is 2.3A/d-3.5A/d. Specifically, in this example, the current density of the plating current was 2.8A/d square meter. The pH of the plating solution is 3 to 5, and further, in one embodiment, the pH of the plating solution is 3.5 to 4.5. Specifically, in this embodiment, the pH of the plating solution is 4. The temperature of the plating solution is 45 to 60 degrees celsius, and further, in one embodiment, the temperature of the plating solution is 48 to 55 degrees celsius. Specifically, in this embodiment, the temperature of the plating solution is 50 degrees celsius. The plating solution includes: 250 g/L-350 g/L of nickel sulfate, 30 g/L-60 g/L of nickel chloride, 30 g/L-40 g/L of boric acid and 0 g/L-10 g/L of polishing agent. In one embodiment, the electroplating solution comprises 32 g/L to 38 g/L boric acid. Further, in the present embodiment, the plating solution includes 35 g/L of boric acid. In one embodiment, the electroplating solution comprises 40 g/L to 50 g/L of nickel chloride. Further, in this embodiment, the plating solution includes 45 g/L of nickel chloride. In one embodiment, the electroplating solution comprises 280 g/L to 320 g/L of nickel sulfate, and further comprises 300 g/L of nickel sulfate in the embodiment. In one embodiment, the electroplating solution comprises 2 g/L to 8 g/L of polishing agent, and further comprises 5 g/L of polishing agent in the embodiment.

Referring to fig. 2, a trend chart of the salt spray test of the nickel-plated stainless steel wire obtained by the above-mentioned nickel plating method for the ultra-fine stainless steel wire. It should be noted that the salt spray test is an environmental test for examining the corrosion resistance of a product or a metal material by mainly utilizing the artificial simulated salt spray environmental conditions created by the salt spray test equipment. The method is divided into two categories, one is a natural environment exposure test, and the other is an artificial acceleration simulation salt spray environment test. The manual salt spray environment simulation test is to utilize a test device with a certain volume space, namely a salt spray test box, to cause a salt spray environment to evaluate the salt spray corrosion resistance performance quality of a product by a manual method in the volume space. It is shown that the nickel-plated stainless steel wire obtained by the above-mentioned nickel plating method for ultra-fine stainless steel wire is excellent in corrosion resistance.

In the embodiment, the material of the stainless steel wire to be electroplated is 304 stainless steel, and in another embodiment, the material of the stainless steel wire to be electroplated comprises 0.05% to 0.08% of carbon, 0.5% to 1% of silicon, 1% to 2% of manganese, 0.2% to 0.45% of phosphorus, 0.01% to 0.03% of sulfur, 8% to 10.5% of nickel and 8% to 10.5% of chromium;

the method for plating the nickel on the superfine stainless steel wire carries out electroplating treatment on the stainless steel wire by accurately and scientifically controlling the current density of the electroplating current, the pH value of the electroplating solution and the temperature of the electroplating solution and combining with a unique electroplating solution formula. The toughness and the ductility of the nickel plating layer formed on the surface of the stainless steel wire by electroplating are improved, cracks generated in the nickel plating layer of the stainless steel wire during drawing processing of the stainless steel wire are avoided, and the weldability and the corrosion resistance of the stainless steel wire are further improved.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.