Electromagnetic casting process applied to high-precision complex cupronickel ternary alloy production

Abstract

The invention belongs to the technical field of ternary alloy production application, and in particular relates to an electromagnetic casting process applied to high-precision complex cupronickel ternary alloy production. The process comprises the following steps: S1) cleaning a copper raw material and ingredients; S2) smelting the cleaned copper raw material and ingredients through a smelting furnace; and S3) firstly pouring a smelted solution in the step 2 into a device provided with an electromagnetic coil to generate an electromagnetic force for electromagnetic treatment. The electromagnetic casting process applied to high-precision complex cupronickel ternary alloy production provided by the invention has the beneficial effects that a liquid metal is solidified in a solid state; in co-melting of a solid and a liquid, the electromagnetic force is generated by the electromagnetic coil, and an electromagnetic field is applied to the metal to improve metal flow and distribution of a solute, so that the defects such as segregation on the surface of an ingot and in the ingot are effectively eliminated and fine and uniform crystal structures are obtained so as to improve the product quality, and therefore, the product yield is improved and the production and economical cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of alloy production and processing, and specifically relates to an electromagnetic casting process applied to the production of high-precision and complex nickel-nickel ternary alloys, effectively eliminating defects such as segregation on the surface and inside of an ingot, and obtaining a fine and uniform crystal structure, so as to Improve product quality and increase yield. Background technique [0002] Pure copper plus nickel belongs to the binary alloy, called common cupronickel. This material has high strength, corrosion resistance, hardness, electrical resistance and pyroelectricity, and reduces the temperature coefficient of resistivity. Therefore, cupronickel has better mechanical properties than other copper alloys. , physical properties are exceptionally good, good ductility, high hardness, beautiful color, corrosion resistance, deep drawing performance, are widely used in shipbuilding, petrochem...

AI Technical Summary

Problems solved by technology

The microstructure of metal ingots is generally very coarse. After pressure processing, the microstructure can be refined and the compactness of the material structure can be improved, thereby improving the mechanical properties of the metal, and can withstand more complex and harsh work than castings. Conditions, such as bearing higher loads, etc., so many important load-bearing parts are made of forgings; and recrystallization annealing is to heat the workpiece processed by cold deformation to above the recrystallization temperature, and cool it after holding for a certain period of time to make the workpiece occur Recrystallization, so as to eliminate the process of work hardening, the difficulty of this process in the production of ternary and above complex cupronickel is that due to the uncertainty of the distribution between the lattices of the elements of the ternary and above alloys, it is easy to cause subsequent During plastic deformation, the crystal lattice breaks, which requires the distribution of reduction in cold working, according to the degree of work hardening and the observation and analysis of the change of surface microstructure, to determine the recrystallization annealing, to eliminate the stage of work hardening, temperature and Holding time, especially in the cold working stage, high-proportion calendering is prone to defects such as surface oxidation, inclusions, peeling, and environmental damage. It is necessary to adopt various methods to eliminate surface defects in order to produce products that meet customer needs. This process is too Complex and difficult to control product quality

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