FIELD: manufacturing technology.
SUBSTANCE: invention relates to method of producing copper wire. Wire rod is produced and several stages of multipass cold drawing are carried out, separated by intermediate annealing. Multipass cold drawing is performed in at least two stages. Degree of accumulated deformation at each stage is set in range of 60–90%. Intermediate annealing temperatures are set in accordance with the expression: Tannealing = 200−0.3·ε, where Tannealing is annealing temperature in degrees Celsius, ε is the accumulated relative deformation for the pre-annealing stage of multipass drawing in percentage.
EFFECT: higher ductility.
1 cl, 3 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SPACER WIRE FOR FUEL ASSEMBLIES OF NUCLEAR REACTORS AND METHOD OF ITS MANUFACTURING | 2023 |
|
RU2829229C1 |
| METHOD FOR PREPARING CONTINUOUSLY CAST COPPER BILLET FOR DRAWING | 1998 |
|
RU2146976C1 |
| COLD-ROLLED STRIP FOR PRODUCTION OF CORROSION-RESISTANT EQUIPMENT COMPONENTS AND METHOD FOR ITS PRODUCTION | 2022 |
|
RU2808020C1 |
| METHOD OF PRIMARY RECRYSTALLISATION STUDY | 2012 |
|
RU2496103C1 |
| METHOD FOR THERMODEFORMATION WORKING OF WIRE OF TIN-ZINC BRONZE | 2006 |
|
RU2315129C1 |
| METHOD OF PRODUCING HEAT-RESISTANT WIRE FROM ALUMINUM-CALCIUM ALLOY | 2021 |
|
RU2767091C1 |
| PROCEDURE FOR PRODUCTION OF TUNGSTEN WIRE | 2008 |
|
RU2389823C1 |
| PRODUCTION METHOD OF RIVET WIRE MADE OF ALLOYS OF SYSTEM Al-Cu-Mg (OPTIONS) | 2007 |
|
RU2354742C1 |
| METHOD FOR PRODUCTION OF BRONZE PROFILE | 2021 |
|
RU2769966C1 |
| Cu-Cr SYSTEM ULTRAFINE COPPER ALLOY AND METHOD OF ITS PRODUCTION | 2011 |
|
RU2484175C1 |
