All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
(38 products available)
Tinned Copper Dumet Wire
Tinned copper dumet wire is one of the most prominent types, especially among those who apply it in RF tubes. The attenuation of all forms of copper cable is the same; copper has a huge conductivity. In addition, the resistance is reduced since copper is regarded as the best metal. However, copper lesions are distinct from copper in that they are coated with tin. This makes them suitable for durable applications since they prevent corrosion while also being able to easily hold solder during tube constructions.
Iron Dumet Wire
Compared to the other forms, iron dumet wire is less frequently used. It is still ferromagnetic, so it is mainly employed in production RF tubes or other magnetically sensitive electronics because of its lower conductivity. Dumet wire iron might be preferred to provide certain magnetic properties that copper can't produce. It is also less efficient in solder retention and wire; therefore, it's only sometimes intended for general use.
Dumet Wire Copper Clad Steel
Copper clad steel dumet wire is a blend of the two properties of copper and steel. The steel core provides good tensile strength, but the copper cladding on the exterior permits excellent conductivity. Dumet wire coppers clad steel is effective at different conductivity and strength levels compared to pure copper alone. This makes it suitable for various applications that require mechanical strength, such as antennae or long-distance transmission lines.
Composition Materials
Dumet wire is an alloy that consists mainly of copper, with iron wire drawn through a tubing section of copper. The thickness and dimensions of the wire are precisely regulated to cope with the RF requirements. Dumet wire is shaped into different gauges to suit varied tube sizes and applications. Use tinned copper for corrosion protection.
Dumet Wire Specifications
Dumet wire is an alloy commonly used in making cathode ray tube (CRT) and other high-frequency equipment where tight sealing is essential. It is mainly composed of copper and iron, with the copper often extending over or inside the iron to improve conductivity. There are several factors that influence its application and performance characteristics. These include wire gauge, tensile strength, and corrosion resistance of the coating.
Applications Related to Specifications
The durability and flexibility of dumet wire allow it to be used in high-temperature and vacuum tube environments. Dumet wires are also commonly found in electronics that need RF shielding. In such applications, wire gauge affects the frequency range, which means that appropriateness for RF is determined by wire gauge.
Television Screens and Monitors
Dumet wires are one of the most crucial components in the production of television screens and monitors, especially those employing older CRT technologies. These materials were primarily used to form the neck and funnel of the CRT, allowing for an efficient vacuum seal. Their superior sealing qualities enable the safe operation of the vacuum in cathode ray tubes for display purposes.
Vacuum Tubes in Electronics
The most prominent industrial applications of dumet wire are in vacuum tubes. People still incorporate clothes in RF amplifiers, oscillators, and other vacuum tube devices. Here, the durability and solder-retaining capabilities of dumet wire are employed to produce strong and heat-resistant seals. In the RF range, iron portion helps minimize the signal's interference.
RF Shielding in High-Frequency Equipment
Dumet wire is also used for RF shielding in different types of equipment. Like copper wire, it can block unwanted electromagnetic signals from interfering with the device's normal operation. This makes it ideal for applications that demand low signal distortion, such as in medical imaging devices, communication systems, and other precise electronic instrumentation.
Aerospace and Defense Applications
Due to their capacity to operate in most extreme environments, dumet wires are used in the aerospace and defense industries. Vacuum tubes in radar systems, missile guidance, and other critical electronics that must function effectively under extreme temperatures and pressure employ dumet wires. They retain solder, which is used to produce seals that can withstand these tests.
Industrial Testing and Measurement Devices
Dumet wire is also found in the most sensitive industrial testing and measuring devices. CRT oscilloscopes, spectrum analyzers, and other tube-based testing gear that requires high accuracy and reliability incorporate dumet wire. Its strength and sealing capability help ensure the devices perform effectively and give accurate readings under varying operating conditions.
Wire Gauge
The purpose and the application determine the wire gauge. Larger gauges are required for high-power applications to ensure an efficient flow of current. Smaller gauges are, however, sufficient for low-power or confined-space applications. RF shielding or precision electronics would also require a finer gauge for enhanced resolution.
Stranding Type
To select the type of stranding, consider the wire's application. For areas where flexibility is needed, such as in moving or bending conditions, go for finer stranded wire. In cases that require greater conductivity, such as low-resistance applications, a coarser strand is ideal.
Coating and Plating Materials
Ensure to assess the coating or the plating if the wire is used in an environment that exposes numerous elements: water, chemicals, high temperatures, or humidity. Tinned copper was developed specifically for this reason, which enhances corrosion resistance. For applications requiring soldering, copper may also have superior retention ability.
Mechanical Strength
While selecting Dumet wire, one must consider the mechanical strength required to perform the task. Larger gauges and wires with a higher strand count tend to possess greater strength. In bending, flexing, or under tension applications, choose a wire that will withstand mechanical wear.
Conform to Standards
This wire is critical in numerous applications that demand quality and safety. Such applications include electronics and RF shielding. When selecting Dumet wire, ensure it conforms to the appropriate industry standards. Considerations like ASTM, IEC, and military standards, among others.
Source Reliability
Dumet wire is a specialized product. Therefore, select it from a reliable and reputable supplier to ensure consistency in the quality of products. Historical records of a company may reflect its adherence to quality. It is thus important to handle this wire with care, especially when soldering.
A1: Dumet wire is defined as a type of electrical wire made out of copper and iron. It is used mainly in vacuum tubes and cathode ray tube (CRT) monitors. One unique thing about Dumet wire is that while the iron core provides mechanical strength, the copper allows for electrical conductivity.
A2: Dumet wires are designed to create the vacuum seal necessary for the CRT operation. Their ability to seal in a vacuum makes them critical for the CRT in televisions and monitors.
A3: Dumet wire was primarily used in older cathode ray tube (CRT) monitors and vacuum tubes. This is because most modern devices are solid-state electronics. They, therefore, do not use vacuum tubes. Nonetheless, people still use Dumet wire in niche applications, such as vintage tech restoration.
A4: Dumet wire can retain solder effectively. Secondly, it is resistant to high temperatures. Last but not least, it has excellent corrosion resistance, with some editions being tinned for added protection.
A5: Although Dumet wire has some iron content, which is less conductive than copper, it still possesses some conductivity with a high capacity to retain solder.
