Tongyu Heavy Industry Co., Ltd.
Quality Assurance
Tongyu Heavy Industry Successfully Delivers China's First Set of Low-Pressure Inner Cylinder Steel Castings
Release time:
2025-08-11
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Recently, Tongyu Heavy Industry Co., Ltd has successfully delivered China's first set of "cast iron to cast steel" low-pressure inner cylinders, marking a major breakthrough for the company in the field of large-scale high-end steel casting manufacturing. With its breakthrough manufacturing efficiency and excellent quality, the product was delivered within an extremely short cycle, setting a new benchmark in the field of large-scale high-end steel castings.
Technological Breakthrough: Upgrading from Cast Iron to Cast Steel, and Integral Forming of Complex Structures
The low-pressure inner cylinder is a core component of a steam turbine unit. Traditional processes mostly use cast iron materials. This time, the customer changed the product from a cast iron part to a cast steel part, which significantly improved the product's high-temperature resistance, creep resistance, and mechanical strength, making it more adaptable to the harsh operating environment of modern high-parameter, high-power units.
The low-pressure inner cylinder is characterized by multiple chambers, thin walls, and complex flow channels. Its internal structure and external shape put forward extremely high requirements for the casting process. To this end, our company's technical team has deeply studied process technologies, made determined innovations, and through systematic process planning, a sound design scheme, combined with advanced simulation software, conducted a comprehensive simulation analysis of the casting process, predicted potential problems, and formulated solutions, effectively ensuring the stability of process quality.
Innovative Breakthrough: Efficient Collaboration to Solve Problems, and Delivery with High Quality in a Short Cycle
In the journey of industrial manufacturing, efficiency is the core competitiveness. For the production of large-scale high-end steel castings with complex structures, completing delivery within an extremely short cycle is undoubtedly a severe challenge. However, relying on efficient project management and seamless team collaboration, our company quickly formulated a thorough production plan.From the procurement and strict inspection of raw materials, to the precise control of the production process, and then to the strict implementation of quality inspection, each link was carefully planned, closely connected, and efficiently promoted. All departments broke down barriers, realized real-time information sharing, and achieved rapid response and closed-loop solution to problems, which strongly guaranteed the smooth and efficient operation of the entire production process.In the end, the project was successfully completed with breakthrough efficiency from the start to the successful shipment. This milestone not only demonstrates our company's technical strength in the field of complex steel castings but also sets a new industry benchmark for the manufacturing efficiency of large-scale high-end steel castings.
The successful delivery of China's first set of low-pressure inner cylinder steel castings has verified full-process manufacturing capability of Tongyu Heavy Industry in the field of large-scale complex steel castings. In the future, Tongyu Heavy Industry will continue to deepen the "material innovation + intelligent manufacturing" dual-engine drive, and help China's high-end equipment manufacturing industry climb to a higher end of the global value chain.
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