With economic development, the demand for chemical products continued to increase, more and more production equipment operation beyond the design capacity, and thus of the global chemical companies to prevent process equipment failure due to corrosion caused by the loss has become imminent the problem. Many experts believe that material protection and anti-corrosion measures is to reduce maintenance costs and an important guarantee to make the plant safe and stable operation. The field of chemical engineering construction in recent years, increasingly fierce competition, the degree of attention in order to reduce the price of the tender, the successful tenderer for the anti-corrosion measures, such as the use of high-quality alloy, surface treatment technology, preservatives (including coating), cathodic protection and on-line corrosion monitoring system obviously not enough, this was particularly prominent in developing countries. The chemical industry for new and existing industrial component protection and protection have become increasingly demanding, rapidly growing demand for coatings and anti-corrosion technology. Anti-corrosion industry division of labor is very small, the large companies engaged in the production of this industry, product sales vary widely. Currently, the global production of protective coatings of major companies such as DuPont, BASF, Akzo Nobel and ICI. The organic polymer is one of the main products in the family of anti-corrosion coatings, in order to meet the increasingly stringent requirements, continue to improve the performance of this coating. Series of aliphatic polyketide polymer can be used as anti-corrosion primer for metal pipes and containers; United States has developed a new perfluorinated materials in the pharmaceutical industry as a primer of large storage tanks and pressure vessels, both to prevent internal corrosion of tanks and containers, but not with mineral acids, bases, oxidants and the container chemical reaction occurs, it will not react with key pharmaceutical ingredient. In addition, the on by the the development of the the series, the a new type of thermoplastic coatings can be used to to protect the the iron and steel equipment in the the a corrosive environment not to be corrosion, the its coating can be to protect the the equipment, in the the run can also protect the equipment of Ding to production capacity the the archived, is particularly suitable for used to protect the flange internal and some other shape more special apparatus. According to the production to manufacturers, said, the the of such coatings than the the easier to removal of the other coatings by rust spots, more extensive than the the flange of the plastic protective cover purposes, and enables massive reduction in the the the anti-corrosion cost of of the National Offshore Oil platform. At the same time, the United States plans to commercially launched a new type of polyurethane, can be used in the resistance to cracking of the composite materials, chemical preservatives and sealants. It is said, the this new material than the conventional polyurethane has a better resistance to-to chemical corrosion be able to, and the production is also more secure, because it is not with the toxic isocyanate maternal the production of. But the use of a cyclic carbonate such as steel, and the costs of this novel polyurethane can and conventional polyurethane competition. Anti-corrosion applications in the chemical process industry standard that the "cold" state (for example, 400 degrees), high temperature plastic playing an increasingly important role. The all age-a fluorine-containing polymer, in particular is polytetrafluoroethylene (PTFE), can actually resist the Society for Corrosion of the any-Chimica Commodities of the. With glass fiber and graphite fiber reinforced PTFE can even withstand temperatures above 500 degrees. However, when used as a compression gasket, valve seals and seat, PTFE and other fluoropolymer has a fatal weakness, the low-temperature flow problem. To prevent low temperature fluidity of a thermoplastic PEEK, although not as fluoropolymers as chemical resistant, but it is the closest connection with the performance of a material. In In addition, an epoxy resin can also be to Supplied the widely of the Kangfu performance, the Special is, in the the in the the Setting of of of marine and There are-chloroperbenzoic reviews of the. New materials with better corrosion resistance and strength continue to flood the market in recent years. As used in the piping and heat exchanger of stainless steel, a vanadium enhanced manufacturing material of the reactor used under high temperature and high strength steel. Production of these materials may have special requirements, to ensure that their corrosion resistance of different occasions, these special requirements tend to be industry standards and norms not. In the past few decades, the high chromium content of the alloy is shown in a reducing or oxidizing environment performance are good, added to the ability of corrosion elements, to make it more suitable for use in harsh atmospheric and solution. Containing high chromium iron alloy heat can be used for the manufacture of large diameter thick-walled power station boiler tubes. At the same time, researchers are focusing on the development of new materials and applications in the chemical process industry. Research and development center in Japan enterprises in Japan are working together to develop a performance over existing materials super metal. The the crystal grains diameter of of the Existing the applicable ferroalloy at 10-100 microns between the for for. The, the Research Use personnel in Retrieving efforts to will with crystal grains diameter Refine Your to a 1 micron or the following, as and as improve its intensity, Resilience, so that it having a the better of decay resistance performance. Used in highly corrosive medium, such as concentrated hydrochloric acid, sulfuric acid, nitric acid, hydrobromic acid, chlorinated organic compound and an acidic metal chloride aqueous solution, chemical equipment, only a small number of materials can be manufactured in metallic material, due to manufacturing cost reasons exclude precious metals, high melting point metal titanium can do the job. Due to the surface to form the five extremely stable titanium oxide layer, the titanium having excellent corrosion resistance for many oxidizing substances and reducing substances, hydrofluoric acid and fluorine ions in order to erode the titanium material. Therefore, almost all types of chemical equipment and components, such as vessels, piping, valves, mixers and so can be used titanium materials. However, due to the different heat transfer in the same environment, heat exchangers are more susceptible to corrosion heat exchanger made of titanium material, to better reflect its superior performance. Ships due to the weight and cost reasons, the parts made of titanium material wall thickness is very thin, which also makes a good heat transfer performance of the titanium materials and equipment, greatly reduce the surface area of ??the heat exchanger, the device structure can be more compact. In addition, the ductility of the titanium material, easy cooling molding member, at the same time, the high strength of the titanium material parts can withstand higher operating pressure than the plastic parts. Titanium melting point of 3000 degrees, in this condition, the formation of a brittle compound with other metals. And thus the the quality of the of the titanium materials and equipment also with the experience in the design and manufacturing technology a great relationship. In addition, the surface treatment of metal materials to improve corrosion resistance as valid alternatives. Improve its strength in the stainless steel surface coated with silver-based fiber welding alloy, and it has a good resistance to corrosion and oxidation resistance. Of such technology has been used for the heat exchanger and, etc. production, is in the process of making an assessment of what the impact of applied to the the the case of of the aluminum and ceramic aspects of in the now. Developed aluminum alloy which can be used is referred to as micro-plasma process (MPP) powered down chemical micro-arc oxidation process, may be formed in a thickness of the coating, the ability of the corrosion, wear resistance, heat resistance, and insulation performance . The MPP process is also can be used for the the a surface of of the Iron & Steel's protected. Research is under way, further used in titanium and magnesium. Overall, the full use of existing anti-corrosion technology, the choice of a suitable anti-corrosion materials, not only can the production process safer and more reliable, but also effectively reduce the cost of management and maintenance costs. How to produce more economical, practical anti-corrosion materials to improve device preservative effect, will continue to be worked in the direction of the project of the century and researchers.