Panxi region's first all-titanium pressure vessel was born

On March 21st, the first self-made titanium pressure vessel (heat exchanger) -- ammonia cooler of Panzhihua Steel co., Ltd. was successfully delivered to customers for installation and debugging after continuous efforts of hongjian Special Branch staff and fierce battle day and night. "The titanium ammonia cooler weighing more than 4 tons was delivered to users after strict self-inspection, 1.16mpa water pressure test and inspection by the national supervision and inspection agency. It marks a substantial breakthrough in the application of titanium and titanium alloy welding technology in the chemical industry, and a solid step has been taken to create high-end parts manufacturing industry." Hongjian company chief said.

According to the introduction, titanium has the advantages of light weight, high strength, corrosion resistance and other characteristics, in recent years is gradually replacing the corrosion resistance of other ammonia cooler is not strong, more and more widely used in the chemical industry. However, due to the high chemical activity of titanium, it is easy to oxidize, leading to defects in the weld. To solve the welding problem becomes the key link of manufacturing all titanium pressure vessel.

As the only enterprise in Panxi region with the national class III pressure vessel design and manufacturing qualification, Hongjian Company has increased the research of titanium and titanium alloy welding technology in the process of transformation from a single equipment spare parts manufacturing to a diversified industry. Through the unique exploration of welding materials, molding, packaging, welding quality assurance and other aspects, gradually formed a titanium steel composite processing production mode.

"The first dry titanium pressure vessel, titanium welding length as long as 21 meters, we have created a qualified miracle!" Hon ship Xiong Yanyan, manager of the special branch, said that starting in August last year design, manufacturing starts in October to deliver user nowadays, in the absence of vacuum welding chamber, by special branch, a senior technicians, led by two welding engineer team, under the care and support of leaders at all levels, not afraid of hard, ranging from without, Creative combination of traditional technology and new technology, relying on their own strength to solve an unprecedented "obstacles", finally make panxi region's largest titanium products born in the hands of panzhihua workers.

"At present, Facing the major national demand, Pangang is firmly implementing the innovation-driven strategy, focusing on upgrading the whole titanium industry chain, striving to obtain a batch of titanium material concession supply qualification, and actively striving to become the strategic backbone of anshan Iron and Steel Group's high-quality development. The birth of the first all-titanium pressure vessel in Panzhihua will undoubtedly have a positive and far-reaching impact." Pangang science and technology innovation department head said.