In the field of diamond tool manufacturing, the particle size, uniformity and quality of diamond tool matrix powder directly determine the performance of the tool. Sagwell ultrafine alloy powder (2-15μm) has a high specific surface area of 4-6m²/g, which achieves dense coating of diamond particles and matrix, improves the density of the matrix, and reduces the porosity from the traditional 5.8% to 2.3%.
The ratio of alloy powder is the core of the tool's strength and toughness balance. Taking the cobalt-based alloy powder matrix as an example, the matrix hardness reaches 88-92HRB, and the toughness buffer space is increased to 12%.
A domestic mining group has verified the value of this ratio in actual application: in its hard sandstone mining scenario, the single-hole life of traditional drill bits is only 80 minutes, while the drill bits using the Sagwell Micro solution, due to the low oxygen content in the diamond tool matrix powder, the diamond pitting rate after sintering is reduced to 1.2%, the single-hole operation time is extended to 125 minutes, and the efficiency is increased by 25%.
After cost accounting, the cost of drilling consumables per meter has dropped from 4.2 yuan to 3.5 yuan, saving more than 1.8 million yuan per year.
In response to the needs of precision machining, Sagwell's cobalt-containing alloy powder series reduces the difference between the thermal expansion coefficient of the matrix and diamond to 0.8×10⁻⁶/℃, solving the problem of micro cracks during sintering at 1200℃. Diamond tool matrix powder equipped with this technology can increase the tool yield by 22%.
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