By proper treatment, the silicon can be precipitated from the matrix in the form of compound Ni3Si in the second phase, and the distribution of the grain boundary and the grain size can greatly improve the strength and hardness of the Ni Cu alloy. The company uses a unique process, greatly thinning the organization, eliminating the composition segregation and inclusion, material mechanical properties greatly improve the alloy has better composition and performance of the uniformity, mechanical properties and corrosion resistance also has a greater improvement.