2results about How to "Restore plasticity" patented technology

The application belongs to the technical field of high-temperature alloy processing, and particularly relates to a nickel-based high-temperature alloy ultra-thin foil and a preparation method and application thereof. According to the application, the cold rolling deformation of each pass is limited to 10% to 30%, a 1050 DEG C to 1100 DEG C stress relief annealing cycle rolling mechanism is matched when the cumulative deformation reaches 65% to 70%, and a 1170 DEG C to 1230 DEG C solid solution treatment process is coupled to the 0.02 mm to 0.03 mm ultra-thin intermediate blank, so that the problems of strip breakage, poor plate shape precision, low thickness uniformity, large internal stress, insufficient room temperature and high-temperature tensile strength in the prior art can be solved, and thus the nickel-based ultra-thin foil with high mechanical properties can be stably prepared.

This invention discloses a continuous casting and rolling process for high-strength copper alloys, relating to the field of metallurgical engineering technology, comprising the following steps: (a) heating the copper matrix containing tin, zinc, and nickel, and adding appropriate amounts of rare earth elements, in a melting furnace to 1200-1300°C until a uniform copper alloy melt is formed; (b) maintaining the copper alloy melt in an optimal casting temperature range of 1150-1200°C using a holding furnace with temperature control function; (c) continuously casting the held copper alloy melt into long strip billets using a continuous casting machine equipped with an electromagnetic stirring device. The technical solution provided by this invention ensures the fluidity and purity of the copper alloy melt, significantly reduces inclusions using electromagnetic stirring technology, effectively promotes uniform solid solution of alloying elements and the formation of fine, dispersed strengthening phases, introduces a homogenization treatment stage, eliminates component segregation, and improves the uniformity of the material.