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公开(公告)号：EP4421197A1
公开(公告)日：2024-08-28
申请号：EP22943612.6
申请日：2022-12-27
发明人： BAI, Qingling , ZHOU, Feng , MIAO, Yaojun , SHAN, Xiaolong , WANG, Xinyu , XU, Haibo , MIAO, Xiaolin , XU, Chunjian
CPC分类号： Y02P10/20
摘要： The present application relates to the technical field of aluminum alloy materials, and provides a super-heat-resistant aluminum alloy monofilament. The strength of the monofilament is greater than 170 MPa, the conductivity is greater than 58% IACS, and a strength residual rate of the monofilament is greater than 90% when the monofilament is heated at 400°C for 1 hour. The monofilament is prepared by the following method: providing an aluminum alloy rod; performing first aging heat treatment on the aluminum alloy rod; drawing a rod material into a monofilament; and performing second aging heat treatment on the alloy monofilament, wherein elemental components of the aluminum alloy rod comprise, in percentage by mass, 0.15%-0.30% of Fe, smaller than or equal to 0.08% of Si, 0.1%-0.3% of Ni, 0.01%-0.2% of Nb, 0.2%-0.35% of Zr, 0.05%-0.2% of Re, and the remainder being Al and other inevitable impurity elements, and the total amount of the inevitable impurity elements is less than or equal to 0.03%.
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公开(公告)号：EP4461429A1
公开(公告)日：2024-11-13
申请号：EP23892759.4
申请日：2023-12-25
发明人： MIAO, Yaojun , BAI, Qingling , ZHOU, Feng , XUE, Chi , XU, Haibo , SHAN, Xiaolong , WANG, Xinyu , HONG, Xiaohong , MIAO, Xiaolin
IPC分类号： B21C37/04 , C22F1/05 , C22C1/02 , C22C21/02 , C22C21/08 , C21D9/52 , B21B1/16 , B21B1/46 , B21C1/02 , H01B13/00 , H01B9/00
摘要： The present disclosure provides a production process of a medium-strength high-conductivity aluminum alloy monofilament and an aluminum alloy monofilament thereof, and relates to the technical field of aluminum alloy materials. The production process comprises the following steps: providing an aluminum alloy rod; drawing the aluminum alloy rod to obtain alloy monofilaments, and performing pre-aging treatment on the alloy monofilaments at 100 to 150°C during the drawing process; and performing artificial aging treatment on the alloy monofilaments to obtain the medium-strength high-conductivity aluminum alloy monofilaments. The present disclosure further provides an aluminum alloy monofilament. The aluminum alloy monofilament obtained through the production process of the medium-strength high-conductivity aluminum alloy monofilament provided in the present disclosure has a strength higher than or equal to 270 MPa, an electrical conductivity higher than or equal to 59% IACS, and an elongation greater than or equal to 5%.
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公开(公告)号：EP4253582A1
公开(公告)日：2023-10-04
申请号：EP20967925.7
申请日：2020-12-31
发明人： MIAO, Yaojun , HONG, Xiaohong , ZANG, Ruiyan , XU, Chunjian , MIAO, Xiaolin , XU, Yifeng , WANG, Xinyu , CAO, Yan , XU, Haibo
摘要： The present disclosure relates to the technical field of conducting wires. Provided are an aluminum alloy wire and a preparation method therefor and a use thereof. The aluminum alloy wire is prepared by means of specific raw materials and according to specific contents, which can effectively improve the tensile strength of a single aluminum alloy wire while ensuring the electric conductivity thereof. The tensile strength and other performances of the single aluminum alloy wire can further be improved in combination with the specific preparation method of the present disclosure. The aluminum alloy wire is used for machining a conducting wire, which can improve the overall pull weight ratio of the conducting wire, reduce the sag of the conducting wire, and greatly reduce the investment cost of a pole tower, thereby providing a new conducting wire selection for an energy-saving overhead conducting wire.
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