What key equipment is required for copper casting?

Key Equipment Required for Copper Casting

1. High-Precision Melting Furnace
Yangzhou Yifeng Copper Products Co., Ltd. utilizes advanced resistance and induction melting furnaces, enabling uniform melting of copper alloys while maintaining strict temperature control, ensuring consistent chemical composition and microstructure of castings.

2. Precision Pouring System
The company is equipped with fully automatic vacuum pouring machines and high-speed pouring equipment, enabling fast and smooth metal flow, reducing porosity and inclusions, and meeting the quality requirements of high-end applications such as mining equipment and marine propulsion.

3. High-Efficiency Heat Treatment Equipment
To enhance the mechanical properties of castings, Yifeng utilizes multi-stage heat treatment furnaces, including solution, aging, and annealing furnaces, to precisely heat treat copper alloys, enhancing corrosion resistance and strength.

4. Intelligent Detection and Control Platform
Leveraging the industry-university-research cooperation base jointly established with Southwest Jiaotong University, the company has developed a big data-based casting process monitoring system that monitors key parameters such as temperature, flow rate, and composition in real time, ensuring that every product meets the stringent standards of Fortune 500 clients.

How are the most common defects in the casting process addressed?

1. Porosity and Shrinkage
By improving pouring temperature, optimizing pouring speed, and using vacuum pouring technology, Yifeng significantly reduces the occurrence of porosity. Furthermore, sophisticated sand mold design and post-processing hot isostatic pressing (HIP) eliminate internal shrinkage.

2. Inclusions and Cracks
During the melting process, the company uses efficient slag removal equipment and filtration systems to ensure melt cleanliness. During the cooling phase, precise temperature curve control is used to avoid thermal stress concentration that can lead to cracks.

3. Surface Roughness and Dimensional Deviation
Post-processing uses high-precision molds and CNC machine tools, coupled with automated inspection equipment, to achieve strict dimensional control. For surface treatment, Yifeng incorporates sandblasting, polishing, and electrochemical polishing processes to enhance surface finish.

4. Microstructure Inhomogeneity
Through R&D collaboration with Southwest Jiaotong University, the company has developed an online alloy composition monitoring system that adjusts the alloy ratio in real time to ensure uniform internal microstructure in castings, meeting the high reliability requirements of offshore drilling platforms and lock hoisting systems.