In large-scale road maintenance machinery applications, we often use carbon steel pipe nipples. Nowadays, carbon steel pipe joints have been used more and more. Have we ever thought about the methods used in the use of such large carbon steel pipe joints?
1 Forging method: The end of the pipe or a department is used to punch the electric butterfly valve to eliminate the outer diameter. The common type forging machine has a twist type, a link type and a roller type.
2 Roller method: Place the core check valve in the tube and press it on the outer circumference for the round edge machining.
3 rolling method: the same as the usual mandrel, suitable for the inner edge of the thick-walled tube.
4 bulging method: one is to place rubber in the tube, the upper part is compressed by punch, so that the tube is convexly formed; the other method is hydraulic bulging forming, filling the middle of the tube with liquid, and squeezing it by liquid pressure The shape.
Carbon steel pipe barrel nipple are produced and produced in different ways and processes in actual production and development. According to the process and principle, they have important value and effect on different aspects, adding certain elements to the actual production to increase carbon. The characteristics and value of the steel pipe joints, the performance characteristics and value of good performance.
Carbon steel mainly refers to the steel whose mechanical properties depend on the carbon content in the steel, and generally does not add a large amount of alloying elements, sometimes called ordinary carbon steel or carbon steel. Carbon steel, also called carbon steel, refers to an iron-carbon alloy containing less than 2% carbon. Carbon steel generally contains a small amount of silicon, manganese, sulfur, and phosphorus in addition to carbon. The process protection of carbon steel pipe joints in actual production and production, matters needing attention and methods in production, etc. First, weld a polygonal ring shell with a polygonal cross section or a multi-edge fan shell closed at both ends, and the interior is full. After the pressure medium is applied, the internal pressure is applied, and the cross section gradually changes from a polygon to a circle under the action of internal pressure, and finally becomes a circular ring shell. According to the need, a circular ring shell can be made of different carbon steel pipe joints, which can display important characteristics in actual use. The process is suitable for manufacturing any large-size bends with a median diameter of the punching elbow and an inner diameter ratio of the punched elbow greater than 1.5. Head is the ideal method for manufacturing large carbon steel pipe fittings.
There are four aspects to the technical process to be used in the production process. One is to forge it, the other is to cast it, and the other is to use the middle plate for rolling, and the other is to carry it out. Plate cutting. In the production process, the manufacturing costs of each process are also different, among which the cost of the forging process is the highest, the middle plate manufacturing is second, and the cost of the foundry product is the lowest. There is a saying that is good, cheap is not good, good goods are not cheap, this sentence is also more appropriate here, because the quality of the products manufactured by these processes is also in contrast, the higher the manufacturing cost The quality of the product is higher, and the lower the cost, the worse the quality of the product produced.
Nowadays, the products produced in each industry will be produced according to certain standards. The carbon steel pipe close nipple is no exception, but its standard is much more different. According to different uses and methods of use, other implementation standards are different. Compared to other products, because of the different implementation standards, production is a bit of a hassle.
