Rationalization suggestion of electroplating factory

Definition and classification of electroplating 1- 1. Definition of electroplating With the continuous subdivision of industrial production, new technologies and new materials are constantly emerging, and the design effect applied to actual products is also changing with each passing day. Electroplating is a process that we often involve in design, and the electroplating effect is an effect of our long-term use and mature process. This technology has been widely used in our products. We hope that by summing up our existing experience and making some design reference documents, we can better apply the electroplating effect to our design, and also apply it to our design more reasonably, which will bring some convenience to the future work. Through this process, we can usually get some metallic effects, such as high light and matt. The difference of product effect is formed by different effects, which adds highlights to product design. 1- 1- 1. Electroplating is defined as the process of depositing metal or alloy on the surface of workpiece by electrolysis to form a uniform, dense and well-bonded metal layer, which is called electroplating. Simple understanding is the change or combination of physics and chemistry. The application of electroplating technology is generally used for the following purposes: a. anticorrosion B. protective decoration C. wear resistance D. electrical performance: according to the working requirements of parts, provide a coating with conductive or insulating properties E. process requirements 1- 1-2 Introduction of common coating methods Here, some similar electroplating processes are analyzed and introduced, and the following processes are related to our electroplating process. Electroless plating (autocatalytic plating) on the surface of activated substrate, the metal ions in the plating solution are catalytically reduced to form a metal coating. This is a process engineering, which mainly involves our process. Only through this process can post-electroplating be carried out, which is mostly used as the pretreatment process of plastic parts. Electroplating is a process of forming uniform, dense and well-bonded metal or alloy deposits on the surface of workpiece by electrolysis. This process is very complicated, but it has many advantages, such as more kinds and colors of deposited metals, and lower price compared with similar processes. Electroforming The process of manufacturing or duplicating a metal product by depositing metal on a mold by electrolysis, which can separate the mold from the metal deposit. This treatment method is used when the final product is required to have special surface effects, such as clear and obvious polishing and etching separation lines or special acute angles. Generally, after copper is used as the shape of the part, alloy is electroplated and deposited on its surface, with a thickness of tens of millimeters, and then the cavities are cut, inserted into the cavities of the mold respectively, and plastic parts are injected. The parts treated in this way will have special effects on the edges and corners and the boundaries of several surfaces to meet the needs of design. Usually, we see many plastic parts with clear highlights and etching effect after electroplating, which are usually designed by this means. As shown in the following figure, if the angular keyboard is manufactured by electroforming process, it will achieve a good appearance effect. Vacuum coating Vacuum coating mainly includes vacuum evaporation coating, sputtering coating and ion plating. They all deposit various metal and nonmetal films on the surface of plastic parts by distillation or sputtering under vacuum. In this way, a very thin surface coating can be obtained, and at the same time, it has the outstanding advantages of fast speed and good adhesion, but the price is also high and there are few kinds of operable metals. They are usually used as functional coatings for high-end products, such as internal shielding layers. 1-2. Common electroplating process 1-2- 1. As far as plastic parts are concerned, our common plastics, including thermoplastics and thermosetting plastics, can be electroplated, but they need different activation treatments, and the surface quality in the later stage is also very different. Generally we only electroplate ABS plastic parts. Sometimes, according to the different requirements of different plastic materials for electroplating activation, two-color injection molding is carried out first and then electroplating is carried out, so that one plastic material can be activated and the other can not be activated, which produces the electroplating effect of local plastics and meets some design requirements of designers. The following mainly introduces the general electroplating process of ABS material. After this process, the plastic electroplating layer generally consists of the following layers: the common coatings after electroplating are mainly copper, nickel and chromium. Ideally, the common thickness of each layer is shown in the figure, and the overall thickness is about 0.02 mm, but in our actual production, due to the quality of the substrate and surface, the thickness is usually much larger than this value, but it is similar and exquisite. 1-2-2. Marking method of electroplating layer