Key technical requirements for coating castings of crusher wear parts: Optimizing casting surface quality
2025-04-30
In the production process of castings for crusher wear parts, both mechanical sand adhesion and chemical sand adhesion pose significant challenges affecting product quality. The pores on the surfaces of molds and cores tend to allow molten metal to seep in during casting, resulting in stubborn mechanical sand adhesion that is difficult to remove. By applying a specialized coating to the surface of crusher wear part castings, these pores can be effectively sealed, blocking the pathways for molten metal penetration and significantly improving the surface finish of the castings.
To address the issue of chemical sand adhesion, the cast coatings on crusher wear parts effectively isolate molten metal from coming into contact with the molding sand, preventing the oxidation film from chemically reacting with silica sand. Experiments have demonstrated that crusher wear parts made with high-quality coatings can completely eliminate the phenomenon of chemical sand adhesion, ensuring that the final products meet even higher quality standards.
In terms of enhancing erosion resistance, cast coatings on crusher wear parts demonstrate unique advantages:
1. Effectively shields against thermal radiation from high-temperature molten metal
2. Enhanced Core Surface Structural Strength
3. Significantly reduces sand particle erosion damage
By optimizing the coating formulation, the following value-added effects can also be achieved:
● Add insulation materials to improve temperature distribution and reduce cold cracking defects.
● Introduce chill materials to optimize the solidification process and enhance internal density.
● Composite alloy elements achieve surface strengthening, extending service life
As a professional provider of castings for crusher wear parts, we recommend that customers pay close attention to the following technical specifications of the coating:
✓ Porosity Sealing Capability
✓ Chemical Stability
✓ High-temperature resistance
✓ Thermal conductivity
Duma Machinery has been deeply engaged in the R&D of coating technologies for wear-resistant castings used in crushers for over a decade. We can provide customized coating solutions tailored to meet diverse operational requirements. New and existing customers are welcome to visit us for on-site inspections and technical discussions.
Duma Machinery's main products include: mantle and concave liners, crushing walls, and distribution plates for cone crushers; jaw plates, side guards, and pressure bars for jaw crushers; lining plates for ball mills, autogenous mills, and other equipment; impact crusher hammers and impact plates; as well as hammer heads, screen bars, liner blocks, and other wear-resistant alloy steel components for metal shredders.