Customized Design Solution

‌Concrete hinge elbow customization case

What is concrete hinge elbow

Concrete hinge elbow‌ is a key component used in concrete pump trucks that allows concrete to turn and bend during the pumping process, ensuring that the concrete can be accurately delivered to the designated location. The design of this elbow takes into account wear resistance and durability to ensure stable operation under high pressure and frequent use. The material of the concrete hinge elbow is usually highly wear-resistant to cope with the wear of aggregates and cement slurry in the concrete. In addition, the design of this elbow also takes into account the sealing performance to prevent the concrete from leaking during the delivery process.

Applications of concrete hinge elbow

Concrete hinge elbows are widely used, especially in infrastructure construction such as buildings, roads, and bridges. Their use not only improves construction efficiency, but also reduces labor intensity. It is one of the indispensable equipment in modern construction. Different manufacturers may design and optimize concrete hinge elbows differently according to the specific use environment and needs to meet specific construction needs.

For example, the Sany No. 1 hinge elbow produced by Sany Heavy Industry is a high-performance elbow designed for concrete pump trucks. It has good wear resistance and sealing, and can adapt to various complex construction environments. The design of this elbow takes into account the convenience of connection and the safety of use, ensuring efficient and safe construction. In addition, different brands and manufacturers may provide different models and specifications of concrete hinge elbows to meet the specific needs of different users.

Process development process:

Digital design and modeling: Engineers first used 3D modeling software to design the 3D model of the burner casting. Considering the characteristics of 3D printing, engineers optimized the model to reduce the use of materials while ensuring functionality. Then, engineers generated a 3D model of the sand mold, including the gating system and riser design.

3D printing sand mold: The optimized 3D model is imported into the sand mold 3D printer. The printer uses a special resin adhesive to solidify the sand layer by layer to form the required mold shape. This method not only eliminates the mold making and assembly steps in traditional sand mold manufacturing, but also enables complex internal structures such as cooling channels.

Casting and post-processing: The printed sand mold is sent to the foundry, and the manufacturer performs metal casting according to the standard process. After the liquid metal fills the sand mold, it cools and solidifies to form the final burner casting. After the casting is taken out, necessary cleaning and post-processing are carried out, such as polishing and removing the riser.

Quality inspection and verification: The castings were quality inspected, including dimensional measurement, surface inspection and mechanical property testing. The 3D printing sand mold process successfully met the design requirements and the complex structure of the castings was accurately realized.

Results and advantages:

In this case, sand 3D printing technology significantly shortened the mold development time from traditional months to a few weeks. Manufacturing costs are also reduced since there is no need to make physical molds. At the same time, 3D printing technology allows engineers to design complex-shaped castings more freely and to quickly iterate and modify designs. Ultimately, the technology improves the precision and surface quality of castings and meets stringent performance requirements. This case demonstrates the huge potential of sand 3D printing in the foundry industry, especially for the rapid development and production of complex parts.