JP2011523436A5 - - Google Patents

Description

Nickel content of 35 to 38% is the alloy according to the invention, the chromium content over the lower 1.2% on around 0.6%, the molybdenum content of 2.1 to 2.8%, 0. 1. Aluminum content of 2 to 0.4% and above 0.25% It is particularly advantageous to have a tungsten content of less than 0 %.

Claims (14)

The following composition (in mass%):
C 0.1% or more and 0.4% or less Cr 0.2% or more and less than 1.2% Ni 35% or more and 40% or less Mn less than 0.1% Si less than 0.1% Mo more than 2% and less than 3.5% Nb 0.01% to 0.5% Al 0.1% to 0.5% Mg 0.001% to 0.01% V 0.1% or less W 0.1% to 1.5% Co 1 . 0% or less Fe Wire for long-distance power transmission lines made of an iron-nickel alloy having an Fe residue and additives inevitable in production, and in that case, the sum of Mo + W (in mass%) is 2.0% or more. The coefficient of thermal expansion is 0% or less and the sum of Cr + W (mass%) is 1.0% or more and 2.0% or less, and is less than 4 × 10 ⁻⁶ / K within a temperature range of 20 to 200 ° C. A wire rod for a long-distance transmission line made of the iron-nickel alloy.   The wire for a long-distance power transmission line according to claim 1, wherein the wire has a Ni content of 35% or more and 38% or less (in mass%).   The wire for a long-distance transmission line according to claim 1 or 2, comprising Cr (by mass%) exceeding 0.6% and less than 1.2%.   The wire for a long-distance transmission line according to any one of claims 1 to 3, having Mo2.1% or more and 2.8% or less (in mass%).   The wire for a long-distance transmission line according to any one of claims 1 to 4, having Al (by mass%) of 0.2% to 0.4%.   The wire for a long-distance transmission line according to any one of claims 1 to 5, having a W of more than 0.25% and less than 1.0% (in mass%).   7. As claimed in any one of claims 1 to 6, optionally with Zr of greater than 0% and less than 0.2% and / or greater than 0% and not more than 0.01% B (by weight). Wire material for long-distance transmission lines as described.   The wire rod for a long-distance transmission line according to any one of claims 1 to 7, wherein a total sum (by mass%) of Mo + W is 2.2% or more and 3.5% or less. The wire rod for a long-distance transmission line according to any one of claims 1 to 8, wherein a total sum (by mass%) of Si + Mn is 0.2% or less .   The wire material for long-distance transmission lines according to claim 9, wherein the total sum (by mass%) of Si + Mn is 0.1% or less.   The wire material for long-distance transmission lines according to any one of claims 1 to 10, wherein a ratio of (Mo + W + Cr) / C is 13.5 to 15.5.   The wire rod for a long-distance transmission line according to any one of claims 1 to 11, wherein the element Mo is replaced by the element W by an allocated amount. The wire for a long-distance transmission line according to any one of claims 1 to 12, which has a thermal expansion coefficient of less than 3.5 x ^10-6 / K within a temperature range of 20 to 200 ° C. The method for producing a wire for a long-distance transmission line according to any one of claims 1 to 13, wherein the melt is cast into an ingot, the ingot is rolled into a billet, and the billet can be preset. 2. Drawing into a wire of diameter, in this case being brought into an annealing step as needed between the individual drawing steps, a prior product in the form of a wire is aluminized and this previous product is drawn out in the final dimensions A method for manufacturing a wire for a long-distance transmission line according to any one of items 1 to 13.