The electroplating of diamond wire saw machine beads is basically the same as that of general diamond electroplating products. The slight difference is that the beads are small, so how to improve work efficiency. Generally, the beaded matrix can be worn on a fixture, the two ends are tightened with nuts, and the non-plated parts are wrapped with plastic cloth for insulation. The number of substrates to be assembled into a string can be determined according to the size of the electroplating tank. If the tank allows, hundreds or more can be plated at the same time. In addition, sanding and thickening are best carried out in different plating tanks. For sanding, the beads (fixtures) are rotated horizontally, and when thickened, they can be rotated vertically, allowing more plating.
Hot-pressed sintered diamond beads are mainly used for cutting granite and cement products. The diameter of the beads is small, the diamond layer is thin, and there are many beads in a rope. Therefore, the hot-pressing sintering method is used to manufacture, and three key problems need to be solved: First, the choice of binder. Cobalt-based binders (mostly pure cobalt) are used in foreign countries. The domestic Diamond wire saw machine uses a multi-component alloy binder, and the basic components are Fe, Co, and Cu. Second, it is necessary to ensure that the thickness of the diamond layer is less than or equal to 1.5mm in the process, which causes difficulties in the structure and life of the mold. The foreign solution is to first cold-press into a ring blank (each bead is divided into two ring blanks), then cover the matrix, put it into a graphite mold, and send it to hot pressing. Third, the production efficiency of the four processes of material mixing and weighing, cold pressing and hot pressing.
