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

申请人： Jiangsu Zhongtian Technology Co., Ltd. ,  Shanghai Zhongtian Aluminum Wire Co., Ltd.

发明人： BAI, Qingling ,  ZHOU, Feng ,  MIAO, Yaojun ,  SHAN, Xiaolong ,  WANG, Xinyu ,  XU, Haibo ,  MIAO, Xiaolin ,  XU, Chunjian

IPC分类号： C22C21/00 ,  C22F1/04 ,  H01B1/02

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%.

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

申请人： Jiangsu Zhongtian Technology Co., Ltd.

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%.