There are two kinds of electroplated diamond wire saws: short-line fixed grinding and long-line continuous grinding. The former can only plate one short saw (about 65438+200m) at a time, while the latter can plate one long saw, such as 10000 m, which is usually multi-headed, and can plate more than 10000 m at a time. But the biggest problem of continuous electroplating is sanding, because metal wire and sand always move relative to each other. At present, there are two kinds of sanding processes for electroplated diamond wire saw, one is nickel-plated diamond sanding, and the other is non-nickel-plated diamond sanding. Nickel-plated diamond itself is conductive. During grinding, diamond particles are suspended around the vertical bus. Once it touches the bus, it will be plated on the bus under the action of large current. However, it is precisely because of the conductivity of diamond particles that the surface of electroplated particles may be wrapped by diamond particles, resulting in accumulation and scrapping of wire saws. The solution is to control the concentration of diamond particles. Controlling the amount of nickel plating on diamond surface; Control that stirring speed of diamond; Control line speed and current density, etc. Nevertheless, the quality is still difficult to guarantee. You know, electroplating takes several days in a cycle, during which diamond powder needs to be constantly updated. It is conceivable that it is difficult for so many factors to remain stable all the time. Even a few meters in the middle of the tens of thousands of meters line are problematic and wasteful.
Non-nickel plated diamond wire saw has many advantages, its sand density is much higher than that of nickel plated diamond wire saw, and it is sharper and more durable. However, electroless nickel-plated diamond itself is not conductive, so it cannot be polished as mentioned above. The solution is to make the bus and the diamond move synchronously without relative motion. There are many patents for reference in this respect. We have studied in this field for many years, and we have applied for a patent with mature technology. We should not only solve the problem of synchronous movement of metal wire and diamond, but also solve the problem of metal wire conduction. After the bus is plated with diamond, the surface is not conductive, because the non-nickel plated diamond itself is not conductive, and the nickel plated diamond does not have this problem. How to conduct electricity evenly over such a long grinding and thickening distance is also a problem that needs to be solved.