Zhongtian Steel Core Aluminum Alloy Stranded Wire Series Products Passed Scientific and Technological Achievement Appraisal in Shanghai

Recently, the identification of steel core (aluminum coated steel core) aluminum alloy stranded wire of Shanghai Zhongtian Aluminum Wire Co., Ltd. jointly organized by the Shanghai Municipal Science and Technology Commission and the Shanghai Economic Commission has been held at the Wanping Hotel in Shanghai.

Experts unanimously approved the scientific and technological achievements. According to the appraisal, the overall level of the steel core (aluminum coated steel core) high-strength aluminum alloy strand produced by Shanghai Zhongtian Aluminum Wire Co., Ltd. has reached the domestic level, including JLHA1/LB14 (AACSR/AS14)-720/90. Aluminum-coated steel core high-strength aluminum alloy stranded wire has reached the leading domestic level.

The appraisal committee agreed that the "steel core (aluminum clad steel core) high-strength aluminum alloy stranded wire series" product developed by Shanghai Zhongtian Aluminum Wire Co., Ltd. could be put into production and used in the project through product identification.

Participating in this appraisal meeting are: State Grid Corporation of China Construction Branch, China Southern Power Grid Corporation, Guodian Power Construction Institute, Shanghai Cable Research Institute, East China Power Grid Corporation, State Power Planning Institute, East China Electric Power Design Institute, Zhongnan Electric Power Design Institute, Southwest Electric Power Design Institute, Northwest Electric Power Design Institute, North China Electric Power Design Institute, Northeast Electric Power Design Institute, Shanghai Electric Power Design Institute, Zhejiang Electric Power Design Institute, Shanghai Electric Power Company, Shanghai Electric Power Super High Voltage Company, Shanghai Power Grid Construction Company, Anhui Province Power companies, Shanghai Minhang District Science and Technology Commission, Shanghai Minhang District Economic Commission and other leaders and experts.

The appraisal meeting will consist of Vice Director of Guodian Electric Power Construction Research Institute, Professor You Chuanyong, Chief Engineer of Shanghai Cable Research Institute, Professor Mao Qingchuan of Professor Level Engineer, Deputy Chief Engineer of State Grid Corporation of China Construction Co., Ltd., and Professor Huaiqing Qing .

Xue Jiping, chairman of Zhongtian Technology Group, attended the meeting and expressed that it will use this appraisal as a new driving force, continuously strengthen independent innovation of enterprises, accumulate more independent intellectual property rights, and make due contributions to the national grid and communications construction. Li Haiquan, deputy general manager of Zhongtian Technology Co., Ltd., delivered a speech at the appraisal meeting and stated that the transformation of scientific and technological achievements requires the attention and support of all levels of government, scientific research institutions, power grid construction departments, etc., to make steel cores (aluminum clad steel cores). ) The series of high-strength aluminum alloy strands better meet the urgent needs of China's power grid construction.

Xue Jianling, general manager of Shanghai Zhongtian Aluminum Wire Co., Ltd., and Yu Weiren, chief engineer, etc., briefed the experts on the research, production, and market application of the results. The typical product JLHA1/LB14 (AACSR/AS14)-720/90 aluminum-clad steel core aluminum alloy strand produced by Shanghai Zhongtian Aluminum Wire passed the full performance test of Guodian Electric Power Research Institute of the State Grid Corporation of China and has been successfully used in “South China Power Grid”. Landmark project" - Shenzhen Qianwan Power Plant sent across the sea. Its main indicators aluminum alloy single wire tensile strength of 320Mpa (required 315Mpa), conductivity of 54.9% IACS (53%IACS required), fully meets and exceeds the company's internal control technology requirements and the user's engineering requirements. At present, the project has been safely lined and operated.

JLHA1/LB14 (AACSR/AS14)-720/90 aluminum-clad steel core aluminum alloy stranded wire has a large cross-section - it is the first time in the domestic power transmission lines that aluminum coil-clad steel core high-strength aluminum alloy strands with large cross-section are used. Length - The length of a single wire is 3700 meters/root and the weight is 12 tons. It is a comparison of the weight of the single wire in domestic wire, and the anticorrosion - the product with 14% IACS aluminum clad steel core as the reinforcement core is produced in combination. Good anti-corrosion function, high conductivity - Shanghai Zhongtian Aluminum Wire Co., Ltd. combined with project requirements, according to its own technical capabilities and excellent equipment capabilities in accordance with the requirements of the company's internal control technology, the product has reached the tensile strength requirements of LHA1 (315Mpa ), while satisfying the LHA2 conductivity requirement (53%IACS).

Shanghai Zhongtian Aluminum Wire Co., Ltd. has also produced high-strength aluminum alloy stranded products of this type of steel core (aluminum clad steel core) for heavy-duty ice (Guizhou, etc.) The user's praise.