Computer-based technology is an important component elbow bends widely used in various fields industry. Elbow uniform thickness in petroleum, chemical, marine, aviation and nuclear industry has an important purpose, has a special significance in high temperature, high pressure and acid corrosion environment. Once the wall thickness of the plastic molding bend theory and relevant research results by businesses adopt tooling equipment, the production of a large number of bends used in national key construction projects tons ethylene project, tons of high-carbon alcohol engineering, tons of synthetic ammonia project and more petrochemical enterprises. Upon examination, pipe quality than similar foreign products, Suzhou carbon steel elbow, not only to replace imports, but also exported to Japan, the United States and Southeast Asia, resulting in significant economic and social benefits. The study was to establish a uniform thickness bend molded theory, the process parameters are given theoretical basis for the application of a new method for the purpose of design, and the development of appropriate technology, tooling equipment and process parameters on the basis of CAD systems. When the wall thickness of the pipe bending metal flow patterns and plastic molding mechanism, revealing the process is different from other essential characteristics of pipe bending. Task Force established a hot forming process of bending tube bends forming the constitutive relation and described stress, strain field theoretical model, Wai carbon steel elbow, and experimental verification. Proposed modifications bending strict proportional relationship with the enlarged diameter variations should be kept, that is a function of bending rate and expanding rate. Given the varying curvature of the horns mandrel axis polar equation, it laid the foundation for the horns mandrel exterior design. Bend achieve all computerized process design, the main process parameter control automation, machining technology has changed the elbow lack of theoretical guidance of production status fundamentally. In actual use elbow can fully demonstrate good role and performance, help the industry value and contribution in practical work, bend in the actual production and processing is carried out in accordance with certain of the actual production process and technology to ensure the work life and values. Insulation elbow wear a certain degree of progress in function, but because the temperature of the reaction is not high (even no more than 1200 ℃), short reaction time, reducing out of aluminum is still stuck in low temperature phase β-Al2O3, has not been able converted to high-temperature phase α-Al2O3 (transition temperature exceeds 1300 ℃). With alumina, but the world of difference between the high temperature and low temperature phase of alumina with alumina in strength, hardness and density function. Because the response time is short, low temperature phase of alumina and iron centrifugal separation is not complete, resulting in the ceramic layer is not dense, loose particles, low hardness. 95 ceramic wear elbow lining paste, alumina content of not less than 95%, and all high-temperature phase α-Al2O3, Chengde carbon steel elbow, sintering temperature up to 1670 ℃, ensure that the material quality. From a practical point of view the effect of wear, wear elbow durable time is more than five times the composite ceramic elbow. In addition, the entire boiler hanger bearing capacity, the steel elbow, elbow composite ceramics are by weight and thickness to win, and some wear elbow wall insulation more than 40 mm thick, the unit design perspective, no doubt to increase the weight hanger and shorten the service life. The current market price of insulation elbow: Alloy around 18,000 yuan per ton, cast elbow 13,000 yuan per ton, carbon steel elbow, composite elbow 17,000 yuan per ton. These types of insulation elbow particularly heavy, they are based on weight to seek profits. That is, an alloy is twice the price of insulation elbow resistant ceramic elbow, elbow with an alloy of money, you can buy two wear-resistant ceramic elbow, elbow insulation has some in the actual sales market prices, can produce certain production efficiency, guaranteed to produce a certain role and value in practical work. Hangzhou carbon steel elbow steel elbow _ _ Bo Yan Pipe Industry (view) provided by the Yanshan Xian Yan Bo Industry Co., Ltd. Road Zhiyuan, temper forward. Yanshan County Bo Yan Pipe Co., Ltd. (www.czbygy.com) aims to become and you win symbiosis, strategic partners to move forward, the more determined to become the most influential enterprises elbow, and you leap to jointly Success!