Analysis of surface treatment methods and advantages and disadvantages of metal stamping parts

The use of metal stamping parts in our lives is very common, and it often involves the functional requirements of surface wear resistance and corrosion resistance. In order to improve the utilization rate of hardware products, it is very important to protect the surface of hardware products. of. u200dThe surface processing subdivisions of metal stamping parts can be divided into the following categories: 1. Paint processing: At present, the hardware factory uses paint processing when producing large hardware products, such as daily necessities, electrical enclosures, and handicrafts. The existence of spray paint not only makes the product less prone to rust, some special spray paint will also produce some other effects, so that the performance of the product is better. 2. Electroplating and chemical plating: Electroplating is also the most common processing technology for metal processing. The surface of metal stamping parts is electroplated through modern technology to ensure that the product will not be moldy or embroidered under long-term use. Common electroplating processing includes: screws , Stamping parts, batteries, car parts, small accessories and so on. Electroless plating refers to a film-forming technology that deposits a metal coating on the metal surface by autocatalytic chemical reaction in a solution coexisting with a metal salt and a reducing agent. Among them, electroless Ni-P alloy plating is widely used. Compared with the electroplating process, the surface treatment of hardware parts is a relatively low-pollution process, and the Ni-P alloy obtained is a good chromium-replacement coating. However, there are many process equipments for electroless plating, material consumption is large, operation time is long, working procedures are cumbersome, and the quality of plating parts is not good. 3. Surface polishing: Surface polishing is generally used in daily necessities. By burring the surface of hardware products, the sharp corners are polished into a smooth face, so that it will not cause harm to the human body during use. 4. Alloy catalyst liquid technology: Alloy catalyst liquid is suitable for various metal materials, and it can be catalyzed as long as it can flow and soak. The product can be processed by heating to about 83°C at room temperature. During the processing, the metal soaking time is generally about 15-20 minutes. After soaking, wash it with clean water and air dry it before use. Sealed and stored under normal temperature and pressure for up to 3-5 years without deterioration. The application range of alloy catalyst fluid is very wide. It has applications in the aviation industry, automobile industry, petrochemical industry, textile industry, hardware industry, mechanical equipment, electronics and electrical engineering, food, medicine and other fields. 5. Oxidation treatment: Oxidation treatment is mainly anodic oxidation, chemical oxidation, and micro-arc oxidation. In the wear test and corrosion resistance test, the surface morphology, oxide layer thickness, friction resistance and corrosion resistance of the aluminum alloy after three surface treatments were analyzed and compared in detail. The surface treatment results of metal stamping parts show that after different surface treatments, the aluminum alloy surface can form oxide films of different thicknesses, the surface hardness and friction resistance are significantly increased, and the alloy corrosion resistance is also improved to varying degrees. In terms of overall performance, micro-arc oxidation is better than anodic oxidation, and anodic oxidation is much better than chemical oxidation. As for how to choose the right surface treatment? The stamping parts processing plant should comprehensively consider the material, processing technology and purpose of the metal stamping parts, and choose a suitable surface treatment method for the product to make the metal stamping parts more beautiful and durable. Recommended article: How to make anti-corrosion measures in the processing of metal stamping parts Previous: A topic of great significance to the stamping factory-improving the durability of stamping dies