New anti-corrosion technology: teach you how to prevent metal corrosion through electrophoretic anti-corrosion?

The annual losses caused by metal product corrosion worldwide exceed 700 billion US dollars, and how to prevent metal corrosion has become a difficult problem that troubles people. Electrophoretic anti-corrosion technology is the direction to solve this problem. In China, the research and development of this technology is at the forefront of the industry.

The huge losses caused by corrosion of metal products have become a major problem that troubles people. In the context of environmental protection, energy conservation, and recycling, electrophoretic anti-corrosion technology has entered people's daily lives. Due to its anti-corrosion and rust prevention functions, it quickly gained widespread application in the military industry. In recent years, it has only been applied to the surface treatment of daily hardware. Due to its excellent quality and high environmental protection, it is gradually replacing traditional paint spraying. We know that traditional anti-corrosion techniques have weak points. All metal materials in daily use are affected by natural environments such as atmosphere, seawater, and soil. With the prolongation of the application time, the performance of the materials themselves will gradually decline, even to the point of damage. The annual losses caused by metal aging worldwide are enormous. According to statistics, over 90% of the usage of metal materials is steel. The corrosion rate of existing steel and metal equipment worldwide is approximately 10% per year. The annual loss caused by corrosion worldwide is about 700 billion US dollars. Generally speaking, the economic losses caused by corrosion account for about 2% to 4% of the total national economic output value.

Speaking of anti-corrosion technology, everyone may be familiar with it. Li Zailiang told reporters that traditional galvanized pipes immerse steel pipes in zinc liquid to form a zinc coating on the surface of the steel pipes for decoration and anti-corrosion purposes. Its anti-corrosion performance is generally around 8 to 10 years. However, because the hot-dip galvanizing industry is a high-energy consuming industry, the zinc pot used for galvanizing needs to reach a high temperature of 450 degrees Celsius to melt the zinc metal, which consumes a large amount of thermal energy, electrical energy, and metal resources. Moreover, after a long period of air and other erosion, this covering layer will produce rust and discoloration, causing secondary pollution. According to incomplete statistics, the national electroplating industry, including the hot-dip galvanizing industry, emits over 400 million tons of heavy metal wastewater each year, over 50000 tons of solid waste gas containing heavy metals, and over 30 million cubic meters of acidic waste gas. Such severe pollution has turned the electroplating industry into a street mouse in some areas.

In addition to its shortcomings in electroplating, traditional paint spraying often suffers from a series of problems such as weak adhesion, easy detachment, poor anti-corrosion performance, rough and smooth surface of sprayed equipment, poor environmental performance, and serious pollution. How to develop a new technology to solve corrosion problems from the source has become a focus of industry attention.

When it comes to electrophoretic technology for the first time in the industry, Li Zailiang made a very interesting analogy, which is that electrons in water swim to the surface of metal instruments like a group of tadpoles, gathering together to form a layer of colored protective clothing with a warming effect. Compared to the past, metal objects treated in this way have a smooth and fine surface, a longer anti-corrosion time of 10 to 20 years than traditional electroplating, and an environmentally friendly production process. It is understood that the metal after electrophoretic painting has excellent corrosion resistance. According to tests, it can generally pass the neutral salt spray test for more than 400 hours. In addition, due to the strong anti discoloration performance of the electrophoretic coating layer, users can configure various colors according to their own requirements. Common colors include gold, bright red, emerald green, navy blue, coffee, gun color, black, etc; Compared with painting technology, it has better construction performance and significantly reduces environmental pollution and harm. It is widely used in various production departments such as automobiles, motorcycles, bicycle parts, as well as hardware and electrical appliances, office supplies, metal glasses frames, watch straps, jewelry, handicrafts, and other occasions that require color electrophoresis.

Since conducting electrophoresis research and development work in 2001, 12 inventions have been applied for so far. Among them, water-based polyurethane resin and its electrophoretic paint composition and preparation method have been authorized. It is understood that the electrophoretic coating technology for metal fittings and deep hole deep concave parts is to form an electrophoretic coating layer on the surface of steel pipes through electrophoretic method. Electrophoretic coatings have high anti-corrosion and decorative properties. After electrophoresis, steel pipes will be covered with a dense, warm, and colored protective clothing. This layer of protective clothing can help steel pipes resist the erosion of various complex environments and extend their service life. Its anti-corrosion performance is generally around 30 years. The electrophoretic coating technology and complete equipment for coil materials have opened up new industrial directions for the coil and wire industries.

As a green and environmentally friendly economy with energy-saving, environmental protection, and high anti-corrosion performance, enterprise preaching and market expansion. If these three inventions can be promoted in the market, they will generate economic benefits ranging from billions to trillions and good social benefits. Li Zailiang couldn't help but exclaim in excitement. In fact, many customers are accustomed to traditional electroplating processes and are not willing to easily change the production process. It is understood that as a new anti-corrosion technology, the market awareness of electrophoretic anti-corrosion is not high, and the market promotion of the new technology is difficult. Spread the word to the market and send out one's own technology. To make more people aware of the energy-saving and environmental protection advantages of electrophoresis technology, it is necessary to encourage more people to learn this technology. Li Zailiang believes that this is a good choice for Collier to promote new technologies.

In order to promote electrophoresis technology, use the China Electrophoresis Network to disseminate and popularize technical knowledge. As long as research and technical personnel have new articles or technologies, we will put them online. Li Zailiang believes that his investment will bring results and eventually usher in the spring of electrophoretic anti-corrosion technology.