What are the characteristics of electroplating equipment materials? The characteristics of equipment materials are porous. The surface of the Nd-Fe-B material is porous after powder pressing and sintering, and various mechanical processing is performed before surface treatment. As a result, many impurities (such as oil: grease) and various high plating that are harmful to the surface treatment or harmful to the magnet coating are adsorbed in the pores on the surface of the material. Before the surface treatment, these harmful impurities drive out the substrate to ensure that the magnet has One of the key factors for good adhesion of the coating.
The contact between the cathode conductive head and the plated part must be good, and the smaller the friction, the better. The particularity of the materials of the electroplating equipment is to minimize the occurrence of hydrogen absorption reactions in the material of the equipment factory during the plating process and to remove the residual hydrogen in the material and the coating after plating. The equipment manufacturer is the key to ensure that the coating is not bulging. Anomalous thermal expansion and contraction behavior Due to the magnet's expansion and contraction, the temperature sensitivity of Nd-Fe-B material is very large. The linear expansion coefficient of the Nd-Fe-B material is parallel to the orientation direction. When selecting the coating and process, taking into account the temperature and temperature adjustment, when the substrate and the coating change due to different linear expansion coefficients, the tensile stress or compressive stress between the processes is generated to ensure that the coating does not appear cracking, peeling, and shadowing. During the etching process of boron ash, a layer of black-gray powder will be attached to the surface of the magnet. This is the boron-rich phase that the magnet dissolves and falls off. This boron ash is extremely difficult to wash off. It covers the surface of the material. The plating layer and the substrate (a more effective method is removal by ultrasonic cleaning.
The concept of electroplating current efficiency has very important meaning in production practice. Improving current efficiency can save electricity. There is a large difference in the current efficiency of various plating processes. In the case of meeting the technical requirements of the product, a high-efficiency process should be selected to save production costs. Such as the use of high-speed chrome plating process, its energy saving effect is quite obvious, at the same time save fan power, and reduce exhaust emissions.
Reducing the energy consumption in the production process is an issue that many companies should pay attention to. As long as the company implements scientific management, comprehensively considers the choice of equipment and processes, and strictly controls the process and operation, it can fully achieve the goals of saving energy and reducing plating costs. We need to better use electroplating equipment to make it achieve better energy saving effects.