Frequently Asked Questions about Die-cast Radiators

During the manufacturing process of die-cast radiators, you may encounter some common problems, here are some of them:

1. Stomata and bubbles:

Problem description: Porosity and bubbles are common defects in the die-casting process and may appear on the surface or inside the radiator.

Solution: Optimize the die-casting process to ensure smooth metal flow and avoid gas being trapped in the casting. The generation of pores and bubbles can be reduced by improving mold design, controlling pouring temperature and speed, and adopting a suitable pouring system.

2. Thermal cracks:

Problem description: During the cooling process of the radiator, thermal cracks may occur due to uneven metal temperature or rapid cooling.

Solution: Optimize the casting process, control the cooling rate and temperature uniformity of the metal, and avoid excessive cooling or the occurrence of stress concentration areas. In addition, appropriate alloy composition and process parameters are selected to reduce the occurrence of hot cracks.

3. Deformation and dimensional deviation:

Problem description: The radiator may shrink and deform unevenly during the cooling process, resulting in size deviation or irregular shape.

Solution: Optimize the mold design, take into account the shrinkage of the radiator, and use a suitable cooling system to ensure that the casting is cooled evenly and avoid deformation. In addition, post-processing processes, such as heat treatment or machining, can be used to correct dimensional deviations in castings.

4. Surface quality issues:

Problem Description: The surface of the radiator may be oxidized, blemished or rough.

Solution: Strengthen mold surface treatment, such as polishing, sandblasting, etc., to improve surface quality. In addition, the coating materials should be selected and used rationally to control the oxidation reaction during the casting process to reduce the occurrence of surface defects.

By optimizing the process, improving equipment and strengthening quality management, these problems can be effectively solved and the quality and production efficiency of die-cast radiators can be improved.