Segment chipping and shedding frequently plague diamond wet core drills during construction drilling, drastically lowering work efficiency and shortening tool service life. These damages mainly happen when drills hit hard materials such as steel rebars. The root cause is loosely compacted matrix material that cannot lock diamond grits tightly, so cutting segments easily crack or fall under harsh working loads.
Sagwell’s R&D engineers have summed up practical improvement plans from repeated lab tests. Matrix powder quality, especially ultra-fine iron powder, decides the matrix’s holding performance. Key indicators like mesh grade, purity and oxygen impurity content directly impact bonding strength. All single metal powders must feature coordinated particle sizes to prevent uneven alloy structures.
Standardized production steps also play a decisive role. Raw mixtures require full blending to guarantee even dispersion and avoid component segregation. Precise cold pressing parameters raise matrix compactness, and sintering needs well-matched temperature and pressure. Low-oxidation premium powder materials should be adopted in all production stages.
Standardized manufacturing balances drill sharpness and durability, cutting the risk of segment failure sharply. While thickening cutting segments can prolong service time, it will push up production costs and reduce cost-effectiveness.
Sagwell’s latest comparative tests prove high-quality raw materials plus precise processing greatly improve drilling sharpness and wear resistance. Strict full-process quality control effectively solves segment breakage and shedding issues. Contact our technical team for complete data and customized material solutions.
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