Preparation method of copper-manganese-based temperature-control inflexion alloy

• Main Authors: QI WANHUA, ZHAO YADONG, ZHANG YANGMING, HE HAN, SHAO YUNJIE
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2022
• Subjects: ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a preparation method of a copper-manganese-based temperature-control inflexion alloy, which comprises the following steps: taking electrolytic copper, electrolytic manganese, electrolytic aluminum, electrolytic iron and electrolytic tin as raw materials, and smelting in a medium-frequency induction furnace; after smelting is completed, casting into a cast iron metal mold to obtain an alloy ingot; carrying out solution treatment on the alloy ingot at 700-900 DEG C, and then carrying out water cooling; and the alloy cast ingot is subjected to aging treatment at the temperature of 300-500 DEG C, then air cooling is conducted, and the copper-manganese-based temperature-control inflexion alloy is obtained. Through the mode, the method provided by the invention can enable the copper-manganese-based alloy to form an antiferromagnetic structure, the damping value of the copper-manganese-based alloy is reduced along with temperature rise, the relaxation time of sound signal attenuation of the c