Production process for improving surface lubricity of stainless steel wire

Abstract

The invention relates to a production process for improving the surface lubricity of stainless steel wires. The production process is particularly suitable for production of core wires and woven mesh stainless steel wires. The stainless steel wire is cleaned, drawn and lubricated, so that the surface lubricity and corrosion resistance of the stainless steel wire are remarkably improved. The process comprises the steps of cleaning with powder, cleaning with wiping powder, drawing with a lubricant, coating with a COR lubricating layer and finally carrying out low-temperature baking treatment. The production process is simplified, the use performance and production efficiency of the stainless steel wire are improved, and the method is suitable for large-scale industrial popularization and application.

Description

Technical Field

[0001] The present invention relates to the field of metal processing, and in particular to a production process for improving the surface lubricity of stainless steel wire, which is particularly suitable for the production of welding core wire and braided mesh stainless steel wire. The present invention improves the cleaning and lubrication steps, so that the stainless steel wire has better formability and operational stability during processing and use. Background Art

[0002] Stainless steel wire is widely used in the manufacturing process of welding, woven mesh and other metal products, and has good corrosion resistance and mechanical properties. In order to ensure the excellent formability and processing performance of stainless steel wire during use, its surface lubricity must be improved to reduce the friction coefficient and reduce wear during processing. However, the cleaning and lubrication processes used in the prior art are usually complicated, the lubrication effect is unstable, and it is easy to cause problems such as residual impurities on the surface and uneven coating. These defects not only affect the production efficiency of stainless steel wire, but also affect its stability in subsequent use. Therefore, it is an urgent need in the industry to provide a simple and effective production process to improve the surface lubricity of stainless steel wire. Summary of the invention

[0003] The purpose of the present invention is to provide an efficient production process for significantly improving the surface lubricity of stainless steel wire, simplifying the process flow, and improving the performance of welding core wire and other stainless steel wire products. The present invention significantly improves the lubricity and corrosion resistance of stainless steel wire by improving the steps of cleaning, lubrication and surface coating, ensuring its stability in industrial production and practical applications.

[0004] Specifically, the production process provided by the present invention comprises the following steps:

[0005] 1. Raw material selection and pretreatment:

[0006] -Select stainless steel busbars that meet the process requirements, usually 316L stainless steel. Perform preliminary drawing on the stainless steel busbars to reach the predetermined diameter for subsequent cleaning and lubrication.

[0007] 2. Cleaning steps:

[0008] -Powder cleaning: Use a cleaning solution containing cleaning powder to clean the stainless steel wire. The cleaning powder includes surfactant, calcium carbonate powder and aluminum oxide powder. This step is carried out at 50-60℃ for 10-15 minutes to remove the oxide scale and oil on the surface of the stainless steel wire to ensure the effect of subsequent lubrication treatment.

[0009] -Powder cleaning: The stainless steel wire is further powdered and cleaned. The powdering material is fine powder with a particle size of 5-10 microns, and the carrier is non-woven fabric. By wiping evenly, fine impurities on the surface are removed to ensure that the surface of the stainless steel wire is clean and smooth.

[0010] 3. Drawing and lubrication treatment:

[0011] -Drawing process: During the drawing process, a lubricant consisting of water-based base oil and nano-scale silica suspension particles is used, with the addition amount of silica being 3-5%. This lubricant can effectively reduce friction during the drawing process, reduce the occurrence of wire breakage, and improve production stability.

[0012] - Lubricating layer coating: After drawing, the surface of the stainless steel wire is coated with a lubricating layer using COR (Coating Of Reinforcement) technology. The thickness of the lubricating layer is controlled between 1-3 microns. The lubricating layer contains silicone oil to further improve the surface lubricity and corrosion resistance.

[0013] 4. Processing of welding core wire:

[0014] -In response to the special needs of the welding core wire, the stainless steel wire coated with the lubricating layer is subjected to low-temperature baking treatment at a temperature of 80-300°C for 10-120 minutes to enhance the adhesion and wear resistance of the lubricating layer and ensure that the welding core wire has good formability and stability during the welding process.

[0015] 5. Finished product inspection and packaging:

[0016] -The surface quality, lubricity and tensile strength of the stainless steel wire after processing are tested, and the wire is wound and packaged after passing the test. The packaging material is moisture-proof and anti-oxidation material to ensure that the stainless steel wire is not affected by external factors during transportation and storage, and maintains its stable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 1. Attachment Figure 1 The process flow chart is as follows:

[0018] -The entire production process, including the connection and sequence of each step, raw material selection and pretreatment, powder cleaning, powder cleaning, drawing process, lubricating layer coating, low temperature baking and other steps.

[0019] 2. Attachment Figure 2 Schematic diagram of the cleaning steps:

[0020] -The process of the stainless steel wire passing through the cleaning liquid is shown in the upper rectangular box.

[0021] - The cleaning liquid is shown in light blue and the wire is dipped into the cleaning liquid to ensure a clean surface.

[0022] - Bubbles are represented by circular symbols, showing the bubbles generated during the cleaning process. These bubbles rise in the cleaning fluid and help remove impurities from the surface of the wire.

[0023] - Impurities are represented by diamond symbols, scattered in the liquid, indicating that these impurities are being removed from the wire surface by the cleaning liquid.

[0024] -The arrows indicate the flow direction of the cleaning fluid and the conveying direction of the stainless steel wire.

[0025] -The lower rectangle shows the powder cleaning step, where the stainless steel wire is wiped with a non-woven fabric to remove fine dust particles.

[0026] -The non-woven fabric moves back and forth on the surface of the steel wire, using wavy lines to indicate the wiping process.

[0027] -The arrows indicate the contact direction between the nonwoven fabric and the steel wire, as well as the moving direction of the steel wire, showing the dynamic process of the entire wiping action.

[0028] -**Powder cleaning steps**The key is to immerse the steel wire in the cleaning liquid to remove surface impurities and bubbles.

[0029] -**Powder cleaning step** Ensure the surface of the steel wire is completely clean by wiping with non-woven cloth.

[0030] 3. Attachment Figure 3 Schematic diagram of lubricating layer coating process:

[0031] -Attached Figure 3 The equipment and working principle of the COR lubricating layer coating process are demonstrated.

[0032] -The schematic diagram mainly shows the process of stainless steel wire passing through the coating device, and the lubricant is evenly coated on the surface of the stainless steel wire to reduce friction and enhance the quality of the product.

[0033] -The stainless steel wire enters the coating device from the left, passes through the coating equipment in the direction of the arrow, and then exits from the right.

[0034] -The direction of transmission is marked by arrows to make the movement path of the wire clear.

[0035] The central part of the coating device shows a spraying device which consists of a plurality of spray heads which are indicated by triangular symbols.

[0036] -The nozzle sprays lubricant downward to ensure that the lubricant is evenly covered on the surface of the stainless steel wire. -The arrow below the coating device indicates the recovery path of the excess lubricant. After coating, the excess lubricant will be recovered to save resources.

[0037] -There is a control panel on the left side of the coating equipment for adjusting the parameters of the spraying device, such as spraying pressure and flow rate.

[0038] -The control panel shows buttons and a display for real-time monitoring and control of the lubricant application process.

[0039] - A lubricant storage tank is shown on the right side of the coating unit, supplying lubricant to the spraying unit via a pipe.

[0040] -The lubricant flows from the storage tank through the pipeline to the injection device, ensuring that the equipment has sufficient supply of lubricant throughout the process.

[0041] 4. Attachment Figure 4 Schematic diagram of low temperature baking process:

[0042] -Attached Figure 4 The low-temperature baking treatment equipment and its working process are demonstrated. The stainless steel wire enters the low-temperature baking box through the conveyor. The temperature inside the baking box is controlled between 80-300℃ to ensure the quality and stability of the product.

[0043] -The stainless steel wire enters the conveyor from the left side, the arrow indicates the conveying direction.

[0044] -The conveyor uses a set of rollers to steadily convey the stainless steel wire to the baking area. The rollers are arranged under the stainless steel wire to help it pass smoothly through the entire baking equipment.

[0045] -The temperature display device is located above the baking box, which displays the temperature inside the box in real time to ensure that the baking temperature is within the range of 80-300℃.

[0046] -The heating elements inside the box are indicated by red wavy lines, conveying the effect of the heating area to ensure that the stainless steel wire is evenly heated.

[0047] -The purpose of low temperature baking is to eliminate the lubricant and moisture that may remain on the surface of the steel wire through stable temperature treatment, thereby improving the strength and consistency of the finished product.

[0048] -The conveying system and temperature control system work closely together to ensure that the stainless steel wire is evenly and fully processed in the baking oven. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Embodiment 1:

[0051] First, a 316L stainless steel busbar was selected and initially drawn to a diameter of 1.5 mm. The stainless steel wire was placed in a 50°C cleaning solution containing 10% surfactant, 5% calcium carbonate powder and 2% alumina powder for 15 minutes. Subsequently, the cleaned stainless steel wire was wiped with a non-woven fabric using a 7-micron abrasive powder to ensure that the surface of the stainless steel wire was smooth and free of residue.

[0052] Then, the stainless steel wire is lubricated with a water-based base oil containing 4% nano-silicon dioxide. During the drawing process, a constant drawing speed is maintained so that the lubricant evenly covers the surface of the stainless steel wire. After drawing, the surface of the stainless steel wire is coated with COR technology with a coating thickness of 2 microns. After coating, low-temperature baking is performed at a temperature of 90°C for 30 minutes to enhance the adhesion of the lubricating layer.

[0053] Finally, the finished stainless steel wire is tested for surface quality, lubricity and tensile strength. After passing the test, the stainless steel wire is coiled and packaged with moisture-proof and anti-oxidation packaging materials to ensure that its quality is not affected during transportation and storage.

[0054] Embodiment 2:

[0055] On the basis of Example 1, the content of silicon dioxide in the lubricant was changed to 5%, and the temperature during the drawing process was controlled at 45°C to improve the lubrication effect. After the lubricating layer was applied, a low-temperature baking treatment of 100°C was carried out for 25 minutes to obtain higher wear resistance and adhesion. After a series of tests, the lubricity and tensile strength of the finished stainless steel wire reached the expected effect, which is particularly suitable for the manufacturing needs of welding core wire and braided mesh.

[0056] The present invention, through the detailed description of the above embodiments, fully demonstrates how to significantly improve the lubricity of the surface of the stainless steel wire by improving the steps of cleaning, lubrication and coating. The process is simple and easy to operate, the cost is moderate, and it has good industrial application prospects.

[0057] It should be noted that, in this article, the above-described embodiment is only one implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A production process for improving the surface lubrication of stainless steel wire, characterized in that: The following steps are involved: -Preliminary drawing of stainless steel busbar; - Clean the stainless steel wire with a cleaning solution containing cleaning powder; -Powder clean the stainless steel wire; - Drawing process using lubricant containing water-based base oil and nano-sized silica suspension particles; -COR lubricating layer coating treatment is applied to the surface of stainless steel wire; - Low temperature baking treatment of stainless steel wire coated with lubricating layer.

2. The production process according to claim 1, wherein the cleaning powder comprises a surfactant, calcium carbonate powder and aluminum oxide powder, the cleaning temperature is controlled at 50-60°C, and the cleaning time is 10-15 minutes.

3. The production process according to claim 1, wherein the powder material used for powder cleaning is finely ground powder with a particle size of 5-10 microns, and non-woven fabric is used as a carrier.

4. The production process according to claim 1, wherein the amount of silicon dioxide added to the lubricant is 3-5%.

5. The production process according to claim 1, wherein the lubricating layer coating thickness is 1-3 microns.

6. The production process according to claim 1, wherein COR (Coating Of Reinforcement) technology is used in the coating process of the lubricating layer.

7. The production process according to claim 1, wherein the low-temperature baking temperature is 80-300°C and the time is 10-120 minutes.

8. The production process according to claim 1, wherein the lubricating layer contains silicone oil to improve lubricity and corrosion resistance.

9. The production process according to claim 1, wherein the wire breakage rate of the stainless steel wire is significantly reduced after lubrication treatment.

10. The production process according to claim 1, wherein the stainless steel wire is tested for surface quality, lubricity and tensile strength after treatment.

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