Recently, a major breakthrough has been achieved for the composite pipe products of "Aerospace Materials Company": its independently developed metallurgically clad plate JCOE welded composite pipe has successfully passed the national special equipment type test certification. This signifies that the product has officially gained market access qualification for entry into high-end sectors such as petroleum, natural gas, and chemical industries.
The special equipment type test certification is a mandatory "hard threshold" set by the state to ensure the safety and reliability of special equipment products. It is also an indispensable "passport" for product market circulation and serves as a crucial technical bridge for international mutual recognition. The successful attainment of this certification fully validates the exceptional safety performance and reliability of Aerospace Materials Company's metallurgically clad plate welded composite pipe under extreme operating conditions such as high pressure and strong corrosion.
The metallurgically clad plate welded composite pipe integrates advanced metal composite technology and pipeline forming processes, with a complex manufacturing process and extremely high precision requirements. Aerospace Materials Company's product is manufactured using hot-rolled clad plates through the high-precision JCOE forming process. This process requires precise calculation of the curling radius and springback compensation for pipes of different specifications, and involves over ten stringent steps, including seam alignment and tack welding, longitudinal seam welding, heat treatment, hydrostatic testing, endoscopic inspection, straightening, sizing, non-destructive testing, bevel machining, and inspection.
Among these, longitudinal seam welding is the core step determining product quality. Aerospace Materials Company innovatively employs a layered welding technique of "base layer → transition layer → cladding layer," applying differentiated welding processes for each layer. This ensures that the weld seam significantly outperforms the base material itself in key indicators such as strength, bending performance, and corrosion resistance, making it the core competitive advantage of the product.
