Chromium zirconium copper (CuCrZr) chemical composition (mass fraction) % (Cr: 0.25-0.65, Zr: 0.08-0.20) hardness (HRB78-83) conductivity 43ms/m softening temperature 550 ℃ Features: high strength and hardness , Electrical conductivity and thermal conductivity, wear resistance and wear resistance are good, and the hardness, strength, electrical conductivity and thermal conductivity are significantly improved after aging treatment, and it is easy to weld. Widely used in motor commutators, spot welders, seam welders, electrodes for butt welders, and other parts that require strength, hardness, conductivity, and pad properties at high temperatures. The electric spark electrode can be used to etch an ideal mirror surface, and at the same time, it has good upright performance, and can achieve the effects that are difficult to achieve with pure red copper such as thin slices. It performs well on difficult-to-machine materials such as tungsten steel.
Chromium zirconium copper has good electrical conductivity, thermal conductivity, high hardness, wear resistance, explosion resistance, crack resistance and high softening temperature, less electrode loss during welding, fast welding speed, and low total welding cost. It is suitable as an electrode for fusion welding machines. For pipe fittings, but for electroplated workpieces, the performance is average.
Application: This product is widely used in various materials for welding, contact tips, switch contacts, mold blocks, and welding machine auxiliary devices in the machinery manufacturing industries such as automobiles, motorcycles, and barrels (cans).
Specifications: The specifications of bars and plates are complete, and can be customized according to customer requirements.
Quality requirements:
1. Eddy current conductivity meter is used for conductivity measurement, and the average value of three points is ≥44MS/M
2. The hardness is based on the Rockwell hardness standard, taking the average of three points ≥78HRB
3. The softening temperature test, after the furnace temperature is kept at 550 ℃ for two hours, after the quenching water is cooled, the hardness cannot be reduced by more than 15% compared with the original hardness
Physical index: hardness: >75HRB, conductivity: >75%IACS, softening temperature: 550℃
●Resistance welding electrodes:
Chromium zirconium copper guarantees performance by combining heat treatment with cold working, it can obtain the best mechanical and physical properties, so it is used for
As a general purpose resistance welding electrode, it is mainly used as an electrode for spot welding or seam welding of low carbon steel and coated steel plate, and can also be used as an electrode for low carbon steel welding.
Grip, shaft and gasket material, or as electrode grip, shaft and gasket material when welding mild steel, or as large mold, jig,
Molds or inlaid electrodes for stainless steel and heat-resistant steel.
EDM electrode: Chrome copper has good electrical and thermal conductivity, high hardness, wear resistance and anti-explosion. It is used as an EDM electrode with good uprightness and no bending when sliced.
The advantages of high curvature and smoothness.
Die base material: chrome copper has the characteristics of electrical and thermal conductivity, hardness, wear resistance and explosion resistance, and the price is superior to beryllium copper mold materials. It has begun to be used in molds.
The industry replaces beryllium copper as a general mold material. Such as shoe sole molds, plumbing molds, plastic molds that generally require high cleanliness, etc.
●In connectors, guide wires, and other products that require high-strength wires.