Electrode copper is a relatively common copper alloy product in the market. Its extremely strong electrical conductivity is called "electrode copper". It is an important material widely used in electric power, high-tech and other fields. Below, we will briefly understand the basic properties of several common electrode copper materials in Dongguan.

Copper electrode:

Features: High purity, fine organization, extremely low oxygen content. No pores, trachoma, looseness, excellent electrical conductivity, high precision of the surface of the electro-eroded mold, after the heat treatment process, the electrode has no directionality, suitable for precision punching, fine punching, and has good thermal conductivity, processability, ductility, Corrosion resistance and weather resistance, etc.

Uses: It can be used in electrical appliances, steam construction and chemical industries, especially terminal printed electrical circuit boards, copper tapes for wire shielding, air cushions, and busbar terminals. Electromagnetic switch, pen holder, root board, etc.

Characteristics of chromium zirconium copper

Copper chromium zirconium (CuCrZr) is the most commonly used resistance welding electrode material, which is determined by its own excellent chemical and physical properties and good cost performance.

1. The chromium zirconium copper electrode achieves a good balance of the four performance indicators of the welding electrode

Excellent conductivity—guarantee the minimum impedance of the welding circuit and obtain excellent welding quality

High-temperature mechanical properties—higher softening temperature ensures the performance and life of electrode materials in high-temperature welding environments

Wear-resistant-the electrode is not easy to wear, prolong the life and reduce the cost

Higher hardness and strength—ensure that the electrode tip is not easily deformed and crushed under certain pressure, and the welding quality is guaranteed

2. Electrode is a kind of consumable for industrial production, the amount is relatively large, so its price cost is also an important factor to consider. Compared with its excellent performance, the price of chromium zirconium copper electrode is relatively cheap and can meet the needs of production.

3. The chromium zirconium copper electrode is suitable for spot welding and projection welding of carbon steel plates, stainless steel plates, coated plates and other parts. The chromium zirconium copper material is suitable for manufacturing electrode caps, electrode connecting rods, electrode heads, electrode holders, and projection welding special electrodes , Welding wheels, contact tips and other electrode parts.

Characteristics of beryllium copper

Compared with copper zirconium copper, beryllium copper electrode material has higher hardness (up to HRB95~104), strength (up to 800Mpa/n/mm2) and softening temperature (up to 650℃). Its conductivity is much lower and poorer.

The beryllium copper electrode material is suitable for welding plate parts with greater pressure, and harder materials, such as seam welding wheels for seam welding; it is also used for electrode accessories with higher strength requirements such as crank electrode connecting rods and robots. Used converter; at the same time he has good elasticity and thermal conductivity. It is very suitable for making stud welding chucks.

The beryllium copper electrode is relatively expensive, and we usually classify it as a special electrode material.

Characteristics of Alumina Copper

Alumina copper is also called dispersion strengthened copper. Compared with zirconium copper, it has higher strength (up to 600Mpa/n/mm2), excellent high temperature mechanical properties (softening temperature up to 900°C) and good electrical conductivity (conductivity) 80~85IACS%), has excellent wear resistance and long life.

Alumina copper is a kind of electrode material with excellent performance, no matter its strength, softening temperature and conductivity are very superior, especially for welding galvanized sheets, it will not produce electrode and workpiece adhesion like zirconium copper electrode To avoid the phenomenon, there is no need for frequent grinding, which effectively solves the problem of welding galvanized sheets, improves efficiency, and reduces production costs.

Alumina copper electrode has excellent welding performance, but its current cost is very expensive, so it can not be widely used at present, but the excellent welding performance of galvanized sheet and the universal use of galvanized sheet make its market prospects broad.

Alumina copper electrodes are used for welding of galvanized steel plates, aluminum products, carbon steel plates, stainless steel plates and other parts.

Characteristics of tungsten and molybdenum

Tungsten Copper Electrode

Tungsten electrode materials include pure tungsten, tungsten-based high-density alloy and tungsten-copper alloy. Tungsten-based high-density alloy is made by adding a small amount of nickel-iron or nickel-copper to tungsten. Tungsten-copper composite material contains 10-40% (weight ratio) Of copper.

Molybdenum electrode (Molybdenum)

Tungsten and molybdenum electrodes have the characteristics of high hardness, high melting point, and excellent high-temperature working performance. They are suitable for welding non-ferrous metals such as copper, aluminum, nickel, etc., such as the connection of copper braid and metal sheet of switches.