Deep Sea Petroleum Machinery Parts: Dual Breakthroughs in Investment Casting and Pressure Resistance Technology

With the advancement of deep-sea energy development, the manufacturing technology of petroleum machinery parts is facing new challenges. The high pressure, low temperature, and strong corrosiveness of deep-sea environments impose strict requirements on the material, structure, and process of components. In this context, investment casting and pressure resistant technology have become the core support for breaking through this bottleneck.

Investment casting is the cornerstone of deep-sea petroleum machinery parts manufacturing. Through processes such as lost wax, silica sol investment casting, parts can achieve millimeter level dimensional accuracy and complicated internal cavity structure, reducing subsequent machining allowance and improving material utilization. For example, deep-sea valve components need to withstand water pressure under hundreds of meters, and their flow channel design needs to balance sealing and fluid resistance. Precision casting technology can directly form complicated curved surfaces, avoiding stress concentration risks caused by welding or assembling and significantly improving component reliability.

The breakthrough of pressure resistant technology relies on the collaborative innovation of materials and processes. Deep sea petroleum machinery parts often use high-strength alloy steel or nickel based alloys, which strengthen the grain structure through heat treatment, combined with surface nitriding, laser cladding and other processes to form a dense protective layer, resisting seawater corrosion and high-pressure impact. At the same time, finite element analysis technology can simulate the stress distribution of parts under deep-sea conditions, optimize structural design, and ensure their stable operation under enormous pressure.

Qingdao Tianheyuan Metal Co., Ltd. has over 24 years of professional casting experience. The company adopts the silica sol investment casting process, and currently produces over 1300 tons of castings annually. Most of our products are directly exported to many countries and regions such as Europe, North America, Japan, and South Korea. If you want to learn more about petroleum machinery parts, please feel free to call us.

WhatsApp: +86-18253267925

Email: sales1@thycasting.com

Tel: +86-(0)532-86767438

Mobile: +86-13863968325

Address: No.9 Xiangjiang Road, Jiaozhou Economic & Technological Development Zone, Qingdao, Shandong, China, 266319

Website: www.thycasting.com