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Liaoning Fuan Heavy Industry Co., Ltd. is located at No. 8 Anzheng Road, Qianshan District, Anshan City, Liaoning Province, within the Dadaowan Economic Development Zone of Anshan. It serves as a key industrial support base under Anshan’s “Five Points and One Line” development plan. Established in July 2004 with a registered capital of RMB 307.02 million, the company is incorporated as a joint-stock company and was listed on the Shanghai Stock Exchange’s Main Board in 2015 under stock code 603315. The company’s core products are critical, high-end components for major technological equipment in industries such as energy and power, rail transit, heavy machinery, and shipbuilding.

Liaoning Fuan Heavy Industry Co., Ltd. is located at No. 8 Anzheng Road, Qianshan District, Anshan City, Liaoning Province, within the Dadaowan Economic Development Zone of Anshan. It serves as a key industrial support base under Anshan’s “Five Points and One Line” development plan. Established in July 2004 with a registered capital of RMB 307.02 million, the company is incorporated as a joint-stock company and was listed on the Shanghai Stock Exchange’s Main Board in 2015 under stock code 603315. The company’s core products are critical, high-end components for major technological equipment in industries such as energy and power, rail transit, heavy machinery, and shipbuilding.

Liaoning Fuan Heavy Industry Co., Ltd. is located at No. 8 Anzheng Road, Qianshan District, Anshan City, Liaoning Province, within the Dadaowan Economic Development Zone of Anshan. It serves as a key industrial support base under Anshan’s “Five Points and One Line” development plan. Established in July 2004 with a registered capital of RMB 307.02 million, the company is incorporated as a joint-stock company and was listed on the Shanghai Stock Exchange’s Main Board in 2015 under stock code 603315. The company’s core products are critical, high-end components for major technological equipment in industries such as energy and power, rail transit, heavy machinery, and shipbuilding.

Liaoning Fuan Heavy Industry Co., Ltd. is located at No. 8 Anzheng Road, Qianshan District, Anshan City, Liaoning Province, within the Dadaowan Economic Development Zone of Anshan. It serves as a key industrial support base under Anshan’s “Five Points and One Line” development plan. Established in July 2004 with a registered capital of RMB 307.02 million, the company is incorporated as a joint-stock company and was listed on the Shanghai Stock Exchange’s Main Board in 2015 under stock code 603315. The company’s core products are critical, high-end components for major technological equipment in industries such as energy and power, rail transit, heavy machinery, and shipbuilding.
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Products of Scientific Research Projects from National Key Laboratories

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发布时间：2024-01-25 11:33

Fuan Heavy Industry has undertaken the production of key components—namely the converging section, diverging section, and working section—for a national key laboratory research project: these are critical core parts of the large cavitation water tunnel experimental platform being constructed by the Shanghai Institute of Shipbuilding and Transportation Sciences. This large cavitation water tunnel experimental platform is China’s first domestically developed, designed, and manufactured “first-of-its-kind” facility; it is the largest such platform in Asia and the second largest in the world dedicated to ship-related research. It serves as an essential experimental facility for studying the cavitation performance and hydroacoustic characteristics of ships and propellers, primarily used to conduct simulated experiments on the hydrodynamic, cavitation, vibration-force, and noise characteristics of ship propellers, hydrofoils, and high-speed underwater vehicles under pressurized or negative-pressure conditions. The successful development of this large cavitation water tunnel platform has broken through foreign technological blockades and monopolies, and is of great significance in enhancing China’s major engineering and technological capabilities in the maritime field as well as the research and testing capacity of the State Key Laboratory of Shipping Technology and Safety. This product is a stainless-steel welded assembly with an overall frustum-shaped external geometry and complex spatial curved surfaces forming the internal cavity. Fuan Heavy Industry was responsible for the final machining and pre-assembly prior to delivery. The component measures 13.5 meters in total length, with a maximum flange cross-section of 7 × 7 meters; its flatness tolerance is 0.1 millimeter, parallelism tolerance is 0.25 millimeter, internal cavity profile deviation is less than 0.3 millimeter, and the alignment tolerance for the mating pins on the assembled flanges is less than 0.03 millimeter. Given the component’s exceptionally large dimensions and stringent precision requirements, some of the machining dimensions exceed the processing capabilities and accuracy standards of conventional machine tools. To mitigate errors caused by deformation during machining, additional process supports were incorporated within the cavity, and specialized tooling fixtures and contour-milling cutters were designed and manufactured. A grid-based reference system was established inside the cavity, and advanced measurement equipment such as laser trackers was employed for inspection and correction, effectively ensuring compliance with the required dimensional accuracy of the cavity. The successful completion of the final machining of this product fills a domestic gap in the machining of large-scale three-dimensional spatial curved surfaces, and Fuan is preparing to publish a technical paper and file a national patent application. Machining of the component was completed in stages at the end of 2023, and by early 2024 all units had passed quality acceptance by the relevant state authorities. The product’s outstanding quality has earned high praise from the customer, underscoring the company’s significant contribution to China’s strategic national projects and creating a new growth driver for Fuan’s shipbuilding market segment.

Fuan Heavy Industry has undertaken the production of components for a national key laboratory research project—namely the converging section, diverging section, and working section. It is a critical core component of the large cavitation water tunnel experimental platform, which was developed and constructed by the Shanghai Institute of Shipbuilding Technology. This large cavitation water tunnel experimental platform is China’s first domestically developed, designed, and manufactured “first-of-its-kind” facility; it is the largest such platform in Asia and the second largest in the world for ship-related research. It serves as an essential experimental facility for studying the cavitation performance and hydroacoustic characteristics of ships and propulsors, primarily used to conduct simulation tests on the hydrodynamic, cavitation, excitation-force, and noise characteristics of test subjects such as ship propellers, hydrofoils, and high-speed underwater vehicles under pressurized or negative-pressure conditions. The successful development of this large cavitation water tunnel experimental platform has broken through foreign technological blockades and monopolies. This is of great significance for enhancing China’s capabilities in major engineering technologies in the maritime sector and for strengthening the research and testing capacity of the State Key Laboratory of Shipping Technology and Safety.

This product is a stainless-steel welded assembly with an overall external configuration resembling a frustum of a pyramid and internal cavity surfaces that are complex spatial curved surfaces. Final machining and pre-assembly for delivery were performed by Fuan Heavy Industry. The product has a total length of 13.5 meters and a maximum flange cross-section of 7 × 7 meters. The flatness requirement is 0.1 mm, the parallelism requirement is 0.25 mm, the deviation of the internal cavity profile is less than 0.3 mm, and the deviation of the locating pins corresponding to the assembly flange is less than 0.03 mm. Given that the product is an extra-large structural component with stringent precision requirements, some of the machining dimensions exceed the capabilities and accuracy standards of conventional machine tools. To mitigate errors caused by deformation during machining, process supports are added within the cavity. In addition, dedicated tooling fixtures and contour-milling cutters are designed and manufactured; a grid-based datum is established inside the cavity, and advanced measurement equipment such as laser trackers is employed for inspection and correction, thereby effectively ensuring compliance with the dimensional accuracy requirements for cavity machining. The completion of the product’s finish machining fills a domestic gap in the machining of large-scale, three-dimensional spatial curved surfaces, and Fuan is preparing to publish a technical paper and file a national patent application.

This product underwent phased precision finishing at the end of 2023 and successfully passed quality acceptance by the relevant national authorities in early 2024. Its superior quality has earned high praise from customers, enabling the company to make a significant contribution to China’s critical national projects and to establish a new growth driver in the Fuan Shipbuilding market segment.