Technological Breakthrough Empowers Industrial Upgrading: High-Precision Casting Parts for Ships Usher in New Opportunities for High-Quality Development

High-precision casting parts for ships are key components of the core systems of ships, and their quality directly affects the safety and performance of ship navigation. For a long time, the market for high-end high-precision ship castings in China has been dominated by foreign enterprises, and core technologies have been subject to external control. Recently, a well-known ship supporting manufacturing enterprise in East China has successfully broken through the application bottleneck of 3D printing technology in the production of complex high-precision ship castings, realizing large-scale mass production of core parts such as high-pressure fuel injection system housings and turbocharger volutes. The product performance has reached the international advanced level, breaking the long-term monopoly of foreign enterprises in this field and injecting new impetus into the independent development of China's ship supporting industry. With the expansion of domestic shipbuilding orders, the upgrading of old ships and the implementation of policies on independent substitution of the supply chain, the market demand in this field has exploded, and transformation and upgrading are imperative.Having been deeply engaged in the industry for more than ten years, the enterprise has solved the pain points of traditional casting, such as dependence on molds, low precision and long production cycle, with the 3D printing technology it has broken through this time. Compared with traditional processes, this technology enables direct molding without molds, controls the deviation of casting wall thickness within ±1 mm, eliminates internal defects such as shrinkage porosity and shrinkage cavity, increases the product yield from 86% to more than 98%, shortens the production cycle by 40%, reduces the comprehensive cost by nearly 10%, and can also meet the needs of small-batch and non-standard customization.According to the technical person in charge of the enterprise, the mass-produced high-precision castings are made of high-end alloy steel and treated with special processes, which have the advantages of high strength, wear resistance and corrosion resistance, and can adapt to the harsh marine environment. The products have passed a number of international quality system and classification society certifications, are exported to more than 30 countries and regions, and are supplied to well-known international ship equipment enterprises, enjoying high market recognition.Industry data show that the market for high-precision ship castings in China has maintained an annual growth rate of more than 10%, and the proportion of customized products has increased. At present, the global ship supporting industry is transforming towards green low-carbon and digital intelligence. The technological breakthrough of this enterprise has not only enhanced its own competitiveness, but also promoted the development of the domestic industry towards high-end, green and intelligent.Relevant experts from the China Association of the National Shipbuilding Industry said that the large-scale application of 3D printing technology this time provides replicable experience for industrial technological innovation. In the future, with more enterprises increasing R&D investment, the international competitiveness of China's high-precision ship casting industry will be further enhanced.The relevant person in charge of the enterprise revealed that the company will further increase R&D investment, expand the application scenarios of the technology, upgrade the intelligent production line, strive to double the production capacity of high-end castings by 2027, further expand the market share, and help achieve independent and controllable supply chain of China's ship supporting industry.