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Help CenterHollow Connector Pipe Forgings | Forged Components | Factory Customization
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Basic Introduction to Hollow Connector Pipe Forgings | Forged Components | Factory Customization
Founded in 2011, Shandong Qingliang Mould Technology Co., Ltd. has 15 years of in-depth experience in the manufacturing of hollow connector pipe open-die forgings, and is a specialized enterprise focusing on the R&D, production and custom services of hollow connector pipe open-die forgings. We provide high-strength, high-sealing and harsh-condition-resistant hollow connector pipe open-die forging solutions for core scenarios of fluid transmission and pressure-bearing connection in industries such as pressure vessels, petrochemicals, nuclear power, shipbuilding heavy industry and metallurgical equipment, serving as a long-term cooperative supplier for many key heavy industry and equipment enterprises in China.
Performance Features of Hollow Connector Pipe Forgings, Forged Components & Factory Customization
Performance Features of Hollow Connector Pipe Forgings
Composite Process of Upsetting - Piercing - Mandrel Drawing
Adopting a precision forming scheme with a forging ratio ≥4.5, combined with staged temperature-controlled heating at 1150-1200℃, metal flow is optimized through V-type anvils to avoid hole wall crack defects, ensuring wall thickness difference ≤1.5mm and metal density ≥99.8%.
Customized Heat Treatment Strengthening
Implementing composite processes of "overall normalizing + tempering" or "quenching and tempering", combined with a slow cooling process, the internal stress elimination rate is ≥98%, and the grain size can reach ASTM Grade 5 or above, improving the overall toughness and fatigue resistance of the connector pipe and avoiding cracking under high-pressure working conditions.
High-Precision Quality Control and Inspection
Key dimensional tolerances ≤±0.5mm, interface flatness ≤0.1mm/m, surface roughness Ra≤1.6μm; passing ultrasonic testing (UT) and magnetic particle testing (MT), meeting the Grade II requirements of JB/T 4728 pressure vessel forging standards, with hydrostatic test pressure reaching 1.5 times the design pressure without leakage.
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