Preparation method of superfine high-strength high-conductivity chromium-zirconium-copper wire

• Main Authors: SONG WENCHENG, CHEN ZIMING, SHI YIWEI, HUANG WEI, YU ZEWEN, SHI GENING
• Format: Patent
• Language: Chinese; English
• Published: 26.09.2023
• Subjects: ALLOYS; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

A preparation method of a superfine high-strength and high-conductivity chromium-zirconium-copper wire comprises the steps that high-strength and high-conductivity chromium-zirconium-copper filament master batch is prepared, specifically, vacuum melting and vacuum casting are adopted, and a chromium-zirconium-copper alloy comprises the following components in percentage by mass: the balance of Cu; 0.6 to 1.3 percent of Cr; the alloy comprises the following components in percentage by weight: 0.2-0.4% of Zr, 0.1-0.3% of Ce, 0.1-0.3% of La, 0.1-0.2% of Ag, performing hot forging forming and surface treatment on the copper alloy cast ingot; performing hot extrusion to form thin rods; and performing multi-pass cold drawing by using wire drawing machines with different specifications, performing multiple times of vacuum annealing treatment in the process from thick to thin, finally performing vacuum aging annealing treatment when the size of the chromium-zirconium-copper wire reaches 0.08 mm, performing furnace co