Casting technology applied to the marine machinery industry

Complex parts such as engine blocks, gearbox housings, and various valve bodies in marine machinery have precise structures and bear large mechanical loads. Our company uses advanced aluminum-zinc alloy die-casting and casting processes to accurately shape complex shapes that meet design requirements. During the die-casting process, through high-precision mold design and manufacturing, as well as precise control of die-casting parameters such as temperature, pressure, speed, etc., ensure that the metal liquid is evenly filled in the mold cavity to form a dense metal structure, thereby improving the strength and rigidity of the parts, so that they can reliably withstand the vibration and impact during the operation of the ship. The casting process plays a unique role in the manufacturing of some large or special structure parts. We can customize personalized casting schemes according to the specific needs of different ship machinery parts, optimize the design of the pouring system, effectively reduce the generation of defects such as pores and inclusions, and ensure the integrity and mechanical properties of the parts.

During the use of ship machinery parts, their performance will change significantly with temperature changes. In order to improve the stability and reliability of parts under various working conditions, our company's heat treatment technology is crucial. For aluminum-zinc alloy parts, we use advanced heat treatment processes, including solution treatment and aging treatment. Solution treatment can fully dissolve the alloy elements in the aluminum matrix at high temperature to form a uniform solid solution, and then retain the supersaturated solid solution through rapid cooling. In the aging treatment stage, by controlling the temperature and time, the solute atoms are precipitated in the solid solution, thereby significantly improving the strength and hardness of the alloy. After heat treatment, ship machinery parts not only have excellent mechanical properties at room temperature, but also maintain good dimensional stability and creep resistance under extreme working conditions such as high temperature and low temperature, which effectively extends the service life of parts and reduces the maintenance cost and failure risk of ship equipment.

The corrosion effect of the marine environment on ship machinery parts cannot be underestimated. In order to enhance the corrosion resistance and wear resistance of parts, our company's aluminum alloy surface hard oxidation technology has become a key barrier. Hard oxidation treatment uses electrochemical methods to generate a dense, uniform and thickness-controlled oxide film on the surface of aluminum alloy. This oxide film has extremely high hardness and good wear resistance, which can effectively resist the erosion of corrosive media such as seawater and salt spray, reduce the wear of parts during operation, and improve the electrical insulation performance of the surface to prevent the occurrence of electrochemical corrosion. In ship machinery, key parts such as propellers, bearings, pistons, etc. that are susceptible to wear and corrosion have their surface performance significantly improved after hard oxidation treatment, ensuring the efficient and stable operation of the ship's power system and transmission system, and improving the overall safety and reliability of the ship.

The assembly accuracy of ship machinery parts directly affects the operating performance and efficiency of ship equipment. Our company has advanced metal processing equipment and exquisite processing technology, which can perform high-precision mechanical processing on die-cast, cast and heat-treated parts. From milling of complex curved surfaces, drilling of precision hole systems to grinding of high-precision shaft parts, we strictly follow the tolerance standards of the ship machinery industry to ensure that the dimensional accuracy and form and position tolerance of each part are within the design requirements. At the same time, by optimizing processing parameters and adopting efficient cooling and lubrication systems, we can effectively improve processing efficiency, reduce processing costs, and provide high-quality, cost-effective precision parts processing services for the ship machinery industry to meet the strict requirements of the shipbuilding and maintenance markets for parts accuracy and quality.