Quality requirements of chromium zirconium copper:
Using eddy current instrument 1 conductivity measurement, measuring three points averaged over 44MS/M
In 2 the hardness of Rockwell hardness standard, take three point average value is greater than or equal to 78HRB
3 softening temperature experiment, the temperature of 550 DEG C to keep two hours after water quenching after cooling, and the original hardness can not be reduced by more than 15%
Physical indicators: hardness: >75HRB,: >75%IACS, conductivity and softening temperature of 550 DEG C:
Use of chromium zirconium copper:
1, resistance welding electrode:
Chromium zirconium copper general overheating treatment and cold processing are combined to guarantee performance, it can obtain the best mechanical properties and physical properties, resistance welding electrode so used for general use, mainly used as electrode spot welding and seam welding of low carbon steel, galvanized steel, also can be used as electrode for welding low carbon steel grip, the shaft and the gasket material, or as an electrode welding low carbon steel grip, shaft and gasket materials, or large mold, as convex welding fixture, stainless steel and heat-resistant steel mold or mosaic electrode.
2, EDM electrode:
Thermal conductivity properties of Cr Cu is good, high hardness, wear-resistant anti explosion, used for EDM electrode has better erection, call sheet does not bend, finish the advantages of higher.
3, the mold base material:
Chromium copper thermal conductivity properties, hardness, wear resistance, beryllium copper mold material antiknock price than superior performance characteristics, has already begun in the mold industry instead of beryllium copper as the general mold material. For example, the sole mould, mold, plastic mold plumbing General requirements for clean high.
4, the high strength wire products
Connectors, wire require high strength wire products.