Corrosion resistant metal tool forgings have a wide range of applications in many industries, such as chemical, petroleum, pharmaceutical and so on. These forgings must have a certain corrosion resistance to cope with the harsh working environment. In order to improve the performance and service life of corrosion-resistant metal tool forgings, surface treatment technology is particularly important. This paper will introduce the application of surface treatment technology for corrosion-resistant metal tool forgings.
Surface treatment technology
The surface treatment technology of corrosion-resistant metal tool forgings mainly includes coating, coating, oxidation treatment, passivation treatment and so on. The principles of these techniques vary, but they are all designed to form a protective film on the surface to improve corrosion resistance.
Coating: Coating is a layer of metal or non-metal material that is added to the metal surface with anti-corrosion, wear-resistant, decorative and other properties. Commonly used coating materials are chromium, nickel, zinc, copper and so on. The coating has good corrosion resistance, which can effectively improve the corrosion resistance of metal tool forgings.
Coating: Coating is a layer of organic or inorganic material added to the surface of the metal, with good corrosion resistance, wear resistance, insulation and other properties. Commonly used coating materials are paint, epoxy resin, polyurethane and so on. The coating protects the metal tool forgings from corrosion damage.
Oxidation treatment: Oxidation treatment is a treatment method that forms a dense oxide film on the metal surface to improve corrosion resistance and wear resistance. The common oxidation treatment methods are chemical oxidation and anodic oxidation. The oxide film formed by anodic oxidation is thicker and has better corrosion resistance.
Passivation treatment: Passivation treatment is a treatment method that forms a dense passivation film on the metal surface to improve corrosion resistance. Common passivation treatment methods include pickling passivation and spontaneous passivation. Passivation film has high corrosion resistance and can effectively prevent metal surface corrosion.
Application scenario
Corrosion-resistant metal tool forgings are widely used in chemical, petroleum, pharmaceutical and other industries. These forgings must have a certain corrosion resistance to cope with the harsh working environment. For example, in chemical production, many chemicals are corrosive, such as sulfuric acid, hydrochloric acid in the petroleum industry, many equipment and tools need to have corrosion resistance, such as oil production equipment, transportation equipment, storage equipment and so on. If the corrosion resistance of these equipment or tools is insufficient, it will lead to serious corrosion problems, affecting the production process and equipment life.
In the pharmaceutical industry, many apis and pharmaceutical preparations have high requirements for corrosion resistance of metal surfaces. If the equipment or tools used have corrosion resistance problems, it will lead to drug contamination and cross-contamination, seriously affecting drug quality and patient safety.
Case study
Suppose an oil company needs to purchase a batch of corrosion-resistant metal tool forgings for oil exploration. These forgings need to cope with the harsh Marine environment, and to withstand high temperature and high pressure working conditions. The following is an analysis of the application of surface treatment technology in this case:
Coating: Considering the high salinity of the Marine environment, the coating can be selected with better corrosion resistance of stainless steel coating or hard chromium coating. These coatings are resistant to corrosion in the Marine environment and have good wear resistance.
Coating: Polyurethane or epoxy resin coatings are available. These coatings have good corrosion resistance and can protect hardware tool forgings from corrosion damage in Marine environments. At the same time, these coatings also have good wear resistance and insulation to meet a variety of needs.
Oxidation treatment: Anodizing treatment can be applied to this batch of corrosion-resistant hardware tool forgings. Through anodizing treatment, the surface of the metal tool forgings will form a dense oxide film, which can improve its corrosion resistance and wear resistance.
Passivation treatment: For this batch of corrosion-resistant metal tool forgings, pickling passivation or spontaneous passivation treatment can be used. These treatment methods can form a dense passivation film on the metal surface, thereby improving its corrosion resistance and preventing corrosion on the metal surface.
conclusion
The surface treatment technology of corrosion-resistant metal tool forgings is of great significance to improve its corrosion resistance and service life. By choosing the appropriate surface treatment technology, the metal tool forgings can cope with the harsh working environment in different industries and improve the safety and stability of the equipment. In the future, with the continuous development of science and technology, new surface treatment technologies will continue to emerge, bringing greater innovation and breakthroughs for the application and development of corrosion-resistant metal tool forgings.
