Welded conductors for power transmission cables
AssigneeNexans
InventorAudun Johanson
Life of this patent
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Abstract
A conductor for a power transmission cable has a first conductor element and a second conductor element connected by a welding joint. The welding joint has a welding material alloy where the welding material alloy has an Al content of from 90% to 98% by weight, a Ni content of from 2% to 8% by weight, and a content of other metals and/or substances from 0% to 2% by weight, based on the total weight of the welding material alloy, wherein the Al content, Ni content and content of other metals and/or substances sum up to 100% by weight.
Claims13
A conductor for a power transmission cable wherein the conductor comprises
- a first conductor element;
- and
- a second conductor element connected by a welding joint,
- wherein the welding joint has a welding material alloy,
- wherein the welding material alloy has an Al content of from 91% to 96% by weight, a Ni content of from 3% to 4.5% by weight, and a content of other metals and/or substances from up to 2% by weight, based on the total weight of the welding material alloy,
- wherein the other metals and/or substances of the welding material alloy includes Ti, where the Ti content is from 0.1% to 0.3% by weight, based on the total weight of the welding material alloy,
- wherein the other metals and/or substances of the welding material includes at most 0.08% Si by weight,
- wherein the other metals and/or substances of the welding material includes a most 0.025% Mg by weight, and
- wherein the Al content, Ni content and content of other metals and/or substances sum up to 100% by weight.
A method for manufacturing a conductor for a power transmission cable, comprising the steps:
- a. providing a first conductor element and a second conductor element;
- and
- b. joining the first conductor element and the second conductor element by welding, thereby obtaining the conductor,
- wherein the welding is performed by using a welding material alloy having an Al content of from 91% to 96% by weight, a Ni content of from 3% to 4.5% by weight, and a content of other metals and/or substances from up to 2% by weight, based on the total weight of the welding material alloy,
- wherein the other materials and/or substances of the welding material alloy includes Ti, where the Ti content is from 0.1% to 0.3% by weight, based on the total weight of the welding material alloy,
- wherein the other metals and/or substances of the welding material includes at most 0.08% Si by weight,
- wherein the other metals and/or substances of the welding material includes a most 0.025% Mg by weight, and
- wherein the Al content, Ni content and content of other metals and/or substances sum up to 100% by weight.
Dependencies are inferred from the claim text.