Research Of The Pre-alloyed Powder Matrix Diamond Saw-blade For Cutting Granite

The performance of the diamond tool matrix is the key factor that affects its quality. At present, the diamond tool matrix material is used to adopt traditional single metal powder, but its sintering quality is not easy to control and mechanics performance of the matrix is not perfect. So pre-alloyed powder is put forward for the single metal powder's shortcoming.The main content includes five following respects:1. A comparative study between the performance of the pre-alloyed powder and the single metal powder, and proposed the basic principle of formula design about pre-alloyed powder matrix diamond saw-blade.2. A comparative study between the pre-alloyed powder and the single metal powder to the saw-blades' performance, including mechanics performance of the matrix, effects of the matrix to the diamond holding force, effects of the matrix performance to the diamond parameter, and so on, and it obtained that the pre-alloyed powder matrix is better than single metal powder matrix.3. Discussed the stress principle about matrix to the diamond holding force, and the relations between holding force and diamond exposure height, which offered a reasonable introduction to the design of the matrix formula.4. Studied on the contrast analysis of diamond's wear forms of segments of pre-alloyed powder matrix and single meter powder matrix, it got that the pre-alloyed powder matrix to the diamond holding force is prior to the single powder matrix.5. Through the studying above-mentioned and contrast analysis of cutting test of several diamond saw-blades with different matrix formula, and then adjusted properly the pre-alloyed powder matrix formula. Finally, found the reasonable pre-alloyed powder matrix formula for cutting granite.