The "labor force" of God XIII! Valin Cable Company helps the aviation industry realize the dream of a starry sea.

At 0: 23 Beijing time (202 1, 16), the Long March II F-13 carrier rocket carrying the Shenzhou XIII manned spacecraft was accurately ignited and launched at Jiuquan Satellite Launch Center as scheduled. Shenzhou XIII manned spacecraft successfully separated from the rocket and entered the scheduled orbit, and successfully sent three astronauts, Zhai Zhigang, Wang Yaping and Ye Guangfu, into space.

Fire. Fire.

On the morning of June 10, Beijing time, the Shenzhou XIII astronaut successfully entered the Tianhe core cabin, and the follow-up astronauts will carry out related work as planned.

Shenzhou 13 astronauts stationed in China Space Station.

On this flying road, many "Hunan elements" shine. Among them, Hualing Cable, an enterprise in Xiangtan High-tech Zone.

As one of the leading enterprises of special cables in China, "Jin Feng" cable produced by Valin Cable has accompanied China's space industry for more than 60 years and witnessed the past lives of Long March series rockets.

Industrial workers strictly control every link.

Into the company's production workshop, I saw the machine running at high speed, and modern production lines such as wire drawing, twisting, extrusion, cabling and weaving were carried out in an orderly manner. The workers are busy at each station, and the working atmosphere is in full swing. Different types and specifications of cables came out one after another. After leaving the factory, it will be widely used in aerospace, weapons and equipment, rail transit and high-speed locomotives, mines, new energy, engineering equipment and other fields.

Workers are operating the equipment.

As a cable supplier of Long March series launch vehicles, Valin cable products have served the launch missions of Long March series rockets for more than 300 times in the past 20 years, with high reliability.

"Launch vehicles have very strict requirements on the reliability, accuracy, volume and weight control of parts. The most important thing of the series products is to maintain reliable stability. " Zhang Gongzhuo said that in order to ensure the stability and reliability of product quality and performance, the company must strictly control the whole process from raw material selection and inspection, production order release, process quality control to finished product inspection and testing, and then to logistics and transportation, and must ensure "zero mistakes" and be foolproof.

Technicians have overcome one difficulty after another.

The cables all over the rocket "body" are like the "nervous system" of our human body. Before the spacecraft was launched into orbit, all the signal components of the spacecraft, including computer, electrical control, power control and signal transmission, were realized through this small cable.

"According to the technical requirements, the ultra-high temperature cable used on the rocket must withstand the ultra-high temperature combustion of the instantaneous temperature 1000 degrees within one minute to ensure uninterrupted signal transmission. This has special requirements for various properties of cables. " Zhang Gongzhuo said that the company invested a lot of manpower and material resources in product research and development as early as 1993. 1994 made the first cable, which was successful through experiments. Starting from 1995, it was officially used in the Long March rocket series. Over the years, in order to meet the requirements of aerospace engineering under the new situation, Valin cable products have been continuously optimized and upgraded.

Ultra-high temperature cable produced by Valin Cable.

"The instantaneous temperature of the previous ultra-high temperature 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 was intact for more than two minutes. " Gao Shuai, director of Valin Cable Military Factory, said that by adopting new materials, improving technology and updating production equipment, the new ultra-high temperature ignition wire is softer, lighter, smaller in outer diameter and better in performance.

From 1400 degrees Celsius to 1800 degrees Celsius, the difference of 400 degrees Celsius is not as simple as the data seems. "The process of technical research is very painful. The screening of each material and the optimization of each process require repeated experiments to achieve the best results. " In product optimization and upgrading, Gao Shuai led the technical team to overcome one difficulty after another.

Pursue the ultimate with the craftsman's "spirit"

In the process of precision manufacturing of Long March series products, skilled workers pursue the ultimate with the "one millionth spirit" of craftsmen. In order to produce the "Tian Fei" cable that can stand the test, it has to go through more than ten processes such as extrusion, twisting and weaving. Everyone carefully crafted every technical detail and kept improving every working procedure.

Zhong Enshan, 46, has worked here for 28 years and is usually responsible for the insulation extrusion of cables. "This is the first process of cable production, and the technical requirements are very high." He has a unique skill. He can adjust the accuracy of the machine with his eyes closed, so that the stripped insulation shell is uniform in thickness no matter from that angle. This is necessary.

Not only the requirements for workers are high, but also the requirements for machines are extremely high. Every year, machinery and equipment are calibrated by a third-party testing organization and maintained by employees and maintenance teams to ensure the integrity of the machine, thus ensuring the accuracy of the production process and the stability of manufacturing accuracy.

"Product quality control is like dancing on the tip of a knife. We have always emphasized the consistency of the technical state, not only to ensure that there is no problem in one year 100%, but also in five years and 10 years, no matter how many years, 100% must be no problem. " During the interview, the workers proudly said that the Long March series special cables they supplied, with their powerful, stable and reliable performance, flew into the sky with the rocket, helping China Aerospace realize the dream of a sea of stars step by step.

In order to ensure the smooth installation and operation of cables in the base, Valin Cable has sent elite technical teams to the site for many times. Based on years of experience in supply and service, combined with the reality of the satellite launch center, it has worked out the most suitable installation scheme, conducted on-site inspection and demonstration operations during the installation process, provided 24-hour on-site technical support and supervision services, and considered all details to ensure the maximum performance of cables.