Blue Arrow Power Team Overcame the Technical Problems of Laser Welding Interlayer Nozzle

Prior to this, there was no domestic research foundation for the technology, and there were no mature products of relevant models internationally. This new technology realizes full-automatic laser welding of large nozzle robots, which can greatly reduce the nozzle manufacturing cost, shorten the manufacturing cycle, improve product quality, and facilitate the mass production of products.

According to reports, Lanjian's laser welding interlayer nozzle technology is the first in China, and has applied for a patent. It is worth mentioning that as the process further matures, the product cycle is expected to be further compressed to within 10 hours.

The nozzle is a device that converts the heat energy of high-temperature and high-pressure gas produced by the combustion of propellant into kinetic energy in the thrust chamber of the rocket engine. It is the guarantee of the specific impulse performance of the rocket engine. The large nozzle is also a distinctive feature of the rocket engine. Therefore, while the nozzle provides a huge driving force for the rocket, it ensures that it will not be burned at high temperatures. The nozzle technology has played a key role, which is also a major difficulty in the manufacture of rocket engine nozzles for a long time.

Zhang Changwu, founder and CEO of Blue Arrow Aerospace, said that the "Tianqi" (TQ-12) 80-ton liquid oxygen methane engine nozzle was successfully off the assembly line, indicating that Blue Arrow ’s independent innovation has achieved significant results, and its core technology has filled the domestic gap. Not only has the development period of the "Tianque" engine been greatly shortened, and the cost has also been reduced, it also proved the company's determination to adhere to the core technology's independent controllability, and also conducted a powerful exploration for the diversity of aerospace manufacturing processes.

In addition, Blue Arrow Aerospace also cooperated with the world-class laser equipment manufacturing group to build a complete set of robotic laser welding equipment . The equipment will be delivered in the near future and enter the Blue Arrow Aerospace Huzhou Intelligent Manufacturing Plant to provide subsequent mass production of liquid oxygen methane engines. Strong guarantee. The maximum welding power of the equipment is 8000W, the maximum welding depth is 10mm, and the maximum welding diameter is close to 2m. It is suitable for all kinds of stainless steel, high temperature alloy, copper alloy, aluminum alloy, copper-steel dissimilar metal , high temperature alloy-stainless steel dissimilar metal Welding can meet the needs of large-area nozzle welding of secondary engines and upper-level engines in the future. At the same time, it can cooperate with other aerospace enterprises, universities and research institutes to provide high-quality, low-cost and fast response services for other aerospace models.