The rust prevention of engines and components directly affects the quality, performance and service life of the engine. The application of anti-rust technology prevents the metal parts of the engine from rusting during production and transportation, ensuring the assembly quality and service life of the whole vehicle.
Rust prevention technology
Shenyang Anti-rust Packaging Materials Co., Ltd. (referred to as “Shenyang Anti-rustâ€) specializes in research, development, manufacturing and application of metal anti-rust protective materials based on gas phase anti-rust materials, which can provide product processing and storage for manufacturing enterprises. The anti-rust protection service for the whole process of transportation, on-site diagnosis, process inspection and repeated testing for corrosion problems, to provide customers with comprehensive solutions. There are many types of anti-rust products, including anti-rust film, anti-rust paper, anti-rust oil, anti-rust powder and anti-rust agent. Various methods of use, including gas phase rust prevention, vacuum packaging rust prevention, composite packaging rust prevention, spray rust prevention and cleaning rust prevention.
Gas phase rust prevention is a new type of high-efficiency and environmentally friendly rust prevention technology. The rust-proof gas phase corrosion inhibitor of Shenyang can continuously and slowly vaporize under normal temperature conditions, and the volatilized corrosion gas adsorbed on the exposed metal surface forms. One to two molecules of stable protective film can effectively prevent metal corrosion caused by adverse environmental factors such as oxygen and moisture. Since the vapor phase corrosion inhibitor continues to volatilize, it can always be in a "saturated" state in a confined space, so that a long-term, stable, and excellent rust-preventing effect can be achieved, and the rust-preventing period is 12 to 20 years.
Anti-rust solution
According to the structure, the engine can be divided into two parts: anti-rust of parts and anti-rust of whole machine. According to the production process sequence, it can be divided into three parts: anti-rust between processes, anti-rust during transportation and anti-rust. The external rust prevention of the engine can be solved by phosphating, painting and oiling; the exposed surface of the metal, the recess, the inside of the pipeline can not be painted, and it is in a humid environment, and a more advanced rust prevention method is needed.
1. Cooling system - water-based anti-rust liquid
Water-based anti-rust liquid refers to an anti-rust liquid which can be diluted with water during use. Its main components are water-soluble anti-rust compounds, water-soluble additives, solvents and water, which are non-toxic or have little toxicity. Metal workpieces using this type of product do not require cleaning or require simple cleaning before entering the next process, greatly simplifying the process.
In 2005, the engine cooling system produced by Shenyang Aerospace Mitsubishi Motor Engine Manufacturing Co., Ltd. ("Shenyang Mitsubishi") appeared severely corroded. After conducting on-site investigation and analysis, Shenyang anti-rust technicians found that the engine passed the hot test process before leaving the factory, and the residual water in the cooling system could not be drained, resulting in serious corrosion of the cooling system. Shenyang anti-rust proposed a solution to inject water-based anti-rust liquid after trial operation, effectively solving the rust problem of Shenyang Mitsubishi engine cooling system.
2. Cylinder head - special aluminum anti-rust liquid
In 2009, Shenyang Mitsubishi introduced the 4A9 series engine, which is made of aluminum. The engine cylinder head is an important structural component of the internal combustion engine, which is used to close the cylinder and constitute the combustion chamber, and has high rust prevention requirements. Shenyang anti-rust According to the characteristics of aluminum materials, special water-based anti-rust liquid for aluminum engine cover is specially developed to solve the anti-rust problem of aluminum material products.
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