Metal wire alloy material for precision resistor and manufacturing method thereof

• Main Authors: CUI HUAYANG, LIU YADAN, JIANG LIMIN
• Format: Patent
• Language: Chinese; English
• Published: 17.07.2020
• Subjects: ALLOYS; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; 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

The invention discloses a metal wire alloy material for a precision resistor and a manufacturing method thereof. The metal wire alloy material for the precision resistor comprises the following components according to the mass percentage: 10-20% of Mn, 3-7% of Ni, 0.1 to 0.3% of Si, 0.5 to 1.5% of Fe, 0.1 to 1.0% of In, 0-0.5% of Ge, 0.1 to 0.5% of Al, and the balance being Cu. The manufacturing method of the metal wire alloy material for the precision resistor comprises the following steps of: step 1. preparing raw materials and compounding; step 2. performing vacuum melting; step 3. forginga cast ingot; step 4. performing hot rolling, and performing vacuum annealing in the intermediate process; and step 5. performing stretching treatment. The manufacturing method determines the alloy material components which meet the requirements of the precision resistor. The metal alloy material is protected by high-purity H2, and is subjected to continuous annealing treatment by an appropriate heat treatment process; an