The Method That Ensures the Best Quality of Oxygen-Free Copper Rods
The production of oxygen-free copper rods by the up-drawing method involves continuous smelting and casting. This process includes melting copper in a furnace to create molten copper, casting the molten copper into billets using a traction device, and then rolling and forming the billets into the desired shape and size.Oxygen-free copper rods fabricated via the up-drawing method exhibit remarkably low oxygen content, superior purity, and the capacity to be produced in uninterrupted lengths.
These attributes guarantee exceptional electrical and thermal conductivity, rendering them ideal for high-performance applications.
（Hot Sale Rod Oxygen Free Copper Rod Pure Copper Bronze Bar）
Advantages of producing oxygen-free copper rods by pull-up method
There are two primary production processes for oxygen-free copper rods: the continuous casting method and the up-drawing method. This product utilizes the up-drawing method to manufacture oxygen-free copper rods. The up-drawing process is conducted under a vacuum or inert atmosphere, which is a key characteristic. After the copper is melted, the rod is drawn upward to form a continuous length. This method effectively prevents surface oxidation, ensuring the copper rod's high purity and exceptional performance. The controlled environment and precise drawing technique yield rods with outstanding electrical and thermal conductivity, making them suitable for high-demand applications.
The resulting copper rod demonstrates high purity and superior performance.、
The technological process is simple and easy to manage.
High production efficiency allows the process to meet the demands of large-scale manufacturing.
The surface of the copper rod is pristine and free from contamination, ensuring it does not compromise subsequent processing and usage.
In summary, the up-drawing method for producing oxygen-free copper rods is an exemplary production process. It generates copper rods with exceptional purity and performance, which are extensively utilized in fields such as electric power, telecommunications, and aerospace. During actual production, meticulous attention must be given to controlling process parameters and operational techniques to ensure the quality and performance of the copper rods.
Uses of oxygen-free copper rods produced by the top drawing method
Copper rods, as a vital electrical conductor, are increasingly used in a wide range of applications. They are essential in industries such as electric power, telecommunications, and aerospace. Copper rods serve as the base material for manufacturing products like wires, cables, copper bars, and other copper components.
（Uses of oxygen-free copper rods produced by the top drawing method）
Production of oxygen-free copper rods by means of the top-loading method.
1. Raw material preparation: Choose high-purity electrolytic copper as the raw material and conduct laboratory tests to ensure its chemical composition meets the specified requirements.
2. Smelting: Put the raw materials into the furnace for smelting. The melting furnace adopts an electric furnace or a gas furnace, and the melting temperature is generally around 1100°C. During the smelting process, attention should be paid to controlling the atmosphere inside the furnace to avoid oxidation of the copper surface.
3. Leading up into rods: the molten copper is drawn into rods through copper rods. Generally, a vacuum or inert atmosphere is used for up-leading to ensure that the surface of the copper rod is not affected by oxidation. In the process of pulling up the rod, attention should be paid to controlling the speed and diameter of the rod to ensure the quality and performance of the copper rod.
4. Drawing: Drawing the finished copper rod to achieve the required diameter and length. During the drawing process, attention should be paid to controlling the drawing speed and drawing force to ensure the flexibility and strength of the copper rod.
5. Cleaning and packaging: Clean and pack the drawn copper rods to ensure that the surface of the copper rods is clean and pollution-free and to prevent the copper rods from being damaged during transportation and storage.
Parameters of oxygen-free copper rods
|
Parameter |
Description |
|
Material Type |
Oxygen-Free Copper (OFC) |
|
Chemical Composition |
Cu ≥ 99.99% (Total Impurities ≤ 0.01%) |
|
Oxygen Content |
≤ 5 ppm |
|
Density |
8.96 g/cm³ |
|
Electrical Conductivity |
≥ 101% IACS (International Annealed Copper Standard) |
|
Tensile Strength |
220-300 MPa |
|
Yield Strength |
70-150 MPa |
|
Elongation |
30-45% |
|
Hardness |
60-90 HV (Vickers Hardness) |
|
Thermal Conductivity |
398 W/(m·K) |
|
Melting Point |
1083°C |
|
Size Range |
Diameter from 1 mm to 100 mm |
|
Surface Treatment |
Bright |
|
Applications |
High-frequency electronic devices |
Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
If you are looking for high-quality Oxygen-Free Copper Rods please feel free to contact us or click on the needed products to send an inquiry.
Payment Term
T/T, Western Union, Paypal, Credit Card etc.
Shipment Term
By air, by sea, by express, as customers request.
FAQs of Oxygen-Free Copper Rods
Q: What is the exact chemical composition of the oxygen-free copper rods?
A: Oxygen-free copper (OFC) rods typically have a chemical composition characterized by a high purity level, with copper (Cu) content of at least 99.99%, an oxygen (O) content of no more than 5 parts per million (ppm), and total other impurities not exceeding 0.01%. The high purity level is crucial for ensuring excellent electrical and thermal conductivity, as well as minimizing the risk of oxidation and other impurity-related issues. This stringent control over the chemical composition ensures that the rods meet the demanding requirements of high-frequency electronic devices, precision instruments, and other critical applications.
Q:What are the tensile strength, yield strength, and elongation properties?
A: The mechanical properties of oxygen-free copper rods are characterized by a tensile strength of 220-300 MPa, which is the maximum stress the material can withstand while being stretched or pulled before failing. The yield strength ranges from 70-150 MPa, indicating the stress at which the material begins to deform plastically, meaning it will not return to its original shape when the stress is removed. Additionally, the elongation is between 30-45%, which represents the percentage increase in length that the material can undergo before breaking, highlighting its significant ductility. These properties make oxygen-free copper rods highly suitable for applications requiring both strength and flexibility.
Q: What quality control measures are in place to ensure the consistency and reliability of the rods?
A: To ensure the consistency and reliability of oxygen-free copper rods, manufacturers implement stringent quality control measures. Raw materials are rigorously inspected for purity using techniques like ICP-MS and XRF. The up-drawing process is closely monitored to maintain high purity and consistent properties. Intermediate products undergo thorough visual inspections, dimensional checks, and mechanical property tests. These measures guarantee the final product's high quality and performance.Final rods are tested for chemical composition, mechanical properties, surface finish, and internal flaws using non-destructive testing methods. Detailed records are kept for traceability, and the rods must meet industry standards such as ASTM B111, EN 13602, and ISO 9001.
Q: Can the rods be customized in terms of diameter, length, and surface treatment?
A: Oxygen-free copper rods can be customized to meet specific requirements. In terms of diameter, they are typically available from 1 mm to 100 mm, with custom diameters produced to high precision. Lengths can range from a few centimetres to several meters, with custom cuts to suit customer needs. Surface treatments include a bright finish for enhanced appearance, tin plating for improved solderability and corrosion resistance, and silver plating for enhanced conductivity and protection against tarnishing. Other treatments like nickel plating and chromate conversion are also available. Custom orders may have longer lead times, smaller order quantities, and additional costs, especially for specialized treatments or very precise dimensions.
