Analysis on the development and application of thermal spraying technology

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Application of Thermal Spray Technology in Chemical and Petroleum Industry

In the chemical industry, corrosion is particularly serious, not only causing a lot of material and equipment losses, but also causing business shutdowns due to corrosion. The losses caused by safety accidents and environmental pollution are even more incalculable. Preventing "running, leaking and leaking" is one of the main tasks of equipment management in chemical enterprises. Thermal spraying technology integrates a variety of process methods, for the purpose of surface strengthening, it can spray all solid engineering materials with good chemical stability, and has been more and more widely used in the chemical industry. Chemical media often contain sulfur and oxygen, such as fuel, alcohol, acetic acid, toluene, glycerin, syrup storage tanks, original shaft sleeve mechanical seals, and impellers, etc., which can be solved by thermal spraying. The general weak corrosive medium can be solved by metal thermal spraying of aluminum, zinc and stainless steel, while the strong acid and alkali medium can be solved by plastic flame spraying epoxy and PTFE. The effect is remarkable. The typical applications of thermal spraying in the chemical industry are as follows: 1. Replace advanced materials such as stainless steel and titanium alloys with low-level materials and heating spray coatings. 2. It can be used as chemical reaction tank, storage tank, stirring device and pipeline anti-corrosion coating. 3. It can be used as a good repair layer for porcelain damage of glass lining equipment.

Thermal spraying is also widely used in the petroleum industry. Thermal spraying technology has been successfully applied to the maintenance and protection of petroleum exploration and development equipment. Thermal spray coatings have been successfully applied to long-term corrosion protection of petroleum steel pipes and offshore platforms. The arc spraying technology introduced by the engineering and installation company of an underground operation company has solved the problem of metal anti-corrosion in the oil field and filled the blank of metal anti-corrosion in the oil field. The engineering installation company applied the technology to wire rods, plates, profiles and metal equipment, and the anti-corrosion ability of the products after spraying increased by more than 2 times.