The saw blade is an essential component of stone processing equipment and plays a crucial role in the production of stone machinery. The quality of a machine largely depends on the quality of the saw blade and its associated components. Many customers are not very clear about the quality of saw blades, so today, we will explain this issue.
Mining saw blades are made by welding a diamond segment to a base. The quality of the saw blade is largely determined by the quality of the base, the diamond segments, and the welding quality between the base and the segments.
1. Saw Blade Base: Under normal conditions, new saw blades are subjected to tension control, flatness, and end-runout control before leaving the factory. However, some bases may exhibit bias when used in stone factories, leading to a decrease in the pass rate of slab cutting. When selecting a base, stone processing factories should avoid choosing cheap, substandard bases. Instead, they should opt for high-quality bases produced by reputable manufacturers. Also, attention should be paid to the usage cycle of re-welded saw blades to reduce unnecessary losses.
2. Diamond Segments: Slab cutting warping is mainly caused by dull diamond segments, forcing the blade to cut under overload conditions or making improper moves during the cutting process, which results in excessive cutting current and slab warping. Therefore, stone processing factories should take preventive measures on new segments before starting the cutting process. If possible, mechanical honing can be used to reduce radial runout and end-runout.
3. Welding of Base and Segments: Reputable segment welding (re-welding) manufacturers typically use high-precision automatic welding machines with high-precision fixtures and stringent, meticulous welding processes and quality inspection standards. This ensures that the welding process has minimal impact on the flatness, end-runout, radial runout, and tension of the saw blade, thus preventing slab warping during the cutting process. Additionally, the match ratio between the diamond segment and the base (the thickness of the segment relative to the thickness of the base) is another important factor. If the ratio is too small, slab warping may occur when the cutting depth exceeds half the radius (typically, manufacturers believe that a ratio of 1.25 to 1.35 yields better cutting performance).
Therefore, stone processing enterprises should choose reputable welding manufacturers with better conditions for segment welding (re-welding) to ensure the high quality and cutting efficiency of the saw blade, reducing losses and waste.
