1. High silicon content: high silicon aluminum alloy with silicon content of 18%-25% (such as ZY-AlSi25 grade, silicon content of 25%) is used, and a matrix with uniform silicon particles is formed through precision die-casting process. The surface hardness reaches HV380-400, the friction coefficient is as low as 0.15, and the wear resistance is improved by more than 60% compared with traditional cast iron.
2. Performance advantages: high silicon content and silicon dioxide dispersion strengthening give the material positive high temperature resistance and corrosion resistance
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