At 19:55 on March 9th, China successfully launched the 54th navigation satellite of the Beidou system at the Xichang Satellite Launch Center using the Long March IIIB carrier rocket. The rocket ignition ultra-high temperature cable is a new type ultra-high temperature ignition cable produced by HNHL Special Cable Technology Group.
As a supplier of high temperature ignition cables and special control cables for Long March series carrier rockets, HNHL products have served more than 300 launch missions of Long March series rockets for more than 20 years, with product reliability reaching 100%. Currently, 90% of the ignition cables of the Long March series of launch vehicles come from HNHL cables. The products provided for the Long March 3B launch vehicles are ground control cables and ignition cables for launch platforms.
"The most important thing for a series of products is to maintain reliable stability." According to Zhang Gongzhuo, chief expert of HNHL cable, the company strictly controls the entire process from selection of raw materials to actual production control, from product inspection to logistics and transportation .
In order to meet the requirements of aerospace engineering in the new situation, HNHL cable products are also constantly optimized and upgraded. "In the past, the instantaneous temperature of the ignition cable reached 1400 degrees Celsius and the line remained intact within 45 seconds. After the product was upgraded, the instantaneous temperature reached 1800 degrees Celsius and the line remained intact for more than two minutes." Said Gao Shuai, director of the HNHL Cable Military Products Factory, By using new materials, improved processes, and upgraded production equipment, the new ultra-high temperature ignition cables are softer, lighter, have a smaller outer diameter, and better performance.
HNHL Special Cable Technology Group
HNHL Special Cable Technology Group is a leader in China's special cables. The company has advanced manufacturing technology and scientific research methods. The products have independent intellectual property rights, and a total of 69 patents have been obtained in recent years. Ultra-high temperature cables and anti-electromagnetic pulse cables won the National Excellent New Product Award, the low-smoke halogen-free combustion laboratory project won the Science and Technology Progress Award of the Ministry of Machinery Industry, and the low-smoke halogen-free shipboard cable project won the scientific and technological progress of the National Defense Science and Technology Commission Awards, low-smoke halogen-free special ship cables and large cross-section overhead conductors for UHV power transmission projects won the Hunan Provincial Excellent New Product Award. Among them, cross-link cables for urban rail transit, cables for hybrid vehicles, umbilical cables, underwater bearing detection cables, flexible low-smoke halogen-free marine cables, water-resistant tree-type variable-frequency cross-link cables, and salt lake water mining power supply Flexible cables, tensile high-strength wires, ultra-high-temperature shielded control cables and other 69 items have obtained national patents (9 inventions + 60 utility models). At present, the company is undertaking research and development of many national science and technology projects.