On November 3, 2021, the China National Science and Technology Awards Conference was grandly held in Beijing. The meeting commended the projects, enterprises and researchers who won the 2020 National Science and Technology Awards.
The "Key Technology and Application of High-Strength and High-Conductivity Copper-Chromium-Zirconium Alloy Catenary Wire for High-speed Railway" developed by HBXH Power Wire Technology Corporation won the second prize of the National Technical Progress Award.
The “Key Technology and Application of High-Strength and High-Conductivity Copper-Chromium-Zirconium Alloy Catenary Wire for High-speed Railways” developed by HBXH overcomes the contradiction between wire strength and electrical conductivity, and increases the speed of high-speed railways to more than 400 kilometers per hour. The second prize of the annual National Science and Technology Progress Award.
The higher the speed of the high-speed train, the higher the requirement for the strength of the catenary wire. Just like a car driving on the road, if the road is not level, the car will be violently bumpy when passing at high speed. For high-speed railways, the catenary wire is like a road. If the straightness is not up to the standard, when the locomotive passes at high speed, an electric arc will be generated, which is commonly referred to as electric spark, which not only loses electric energy, but also creates hidden dangers. To make the catenary wire meet the requirements of flatness, it is necessary to increase the strength of the catenary wire while ensuring good electrical conductivity.
Previously, the most advanced wire on the market was the Japanese PHC wire, but Japan imposed a technical blockade on China in terms of wires.
On December 8, 2010, the pilot section of the Beijing-Shanghai high-speed railway using copper-chromium-zirconium alloy catenary conductors achieved the world record of 486.1 kilometers per hour for the world's highest operating train test speed, marking that China's high-speed railway catenary technology has reached the world's leading level.
Experimental data show that compared with the Japanese PHC wire, the wire developed by HBXH has an 8% increase in strength and a 3% increase in conductivity. After 8 years of network operation, the actual operating data shows that the conductivity, tensile strength, fatigue resistance and other indicators of the high-strength and high-conductivity contact wire developed by HBXH are stable, which are in good agreement with theoretical calculations. At present, their high-strength and high-conductivity contact wire is the only optional product in China for speeds above 350 kilometers per hour.
About HBXH
HBXH is committed to providing professional wire products and technological innovation enterprises for China's national electrified railway and urban rail transit industries.
The company mainly develops and produces copper-magnesium alloy stranded wire, high-strength copper-magnesium alloy stranded wire,
Hard copper stranded wire, soft copper stranded wire, suspension wire,Copper and copper alloy contact wires (copper-silver alloy, copper-tin alloy, copper-magnesium alloy and high-strength and high-conductivity contact wires with the world's advanced level, etc.),10KV, 27.5KV electric railway special cables and ethylene-propylene rubber insulated cables that fill the gap in the railway market,Various other high, medium and low voltage cables, copper alloy rods for contact nets,Ten categories of aluminum-clad steel-cored aluminum stranded wire, round wire concentric stranded overhead wire, etc.,More than a thousand specifications and models of products.
All over China's high-speed electrified railway backbone projects and urban rail transit projects.