Forging materials for carbon steel flanges
The forging materials of carbon steel flanges are mainly carbon steel and alloy steel of various components, followed by aluminum, magnesium, copper, titanium and their alloys, iron-based superalloys, nickel based superalloys, and cobalt based superalloys. Wrought alloys are also completed by forging or rolling, but these alloys have relatively narrow plastic zone, so the forging of carbon steel flanges will be relatively difficult. The heating temperature of carbon steel flanges of different materials, There are strict requirements for open forging temperature and final forging temperature. The raw materials of carbon steel flanges include bars, ingots, metal powder and liquid metal. The ratio of the cross-sectional area of metal before deformation to that after deformation is called forging ratio. Correct selection of forging ratio, reasonable heating temperature and holding time, reasonable initial and final forging temperature, reasonable deformation amount and deformation speed of carbon steel flange have a great relationship with improving product quality and reducing the cost of carbon steel flange. Free forging of carbon steel flange refers to the processing method of forging by using simple universal tools or directly applying external force to the blank between the upper and lower anvils of the forging equipment to deform the blank and obtain the required geometric shape and internal quality. Forgings produced by free forging are called free forgings. The free forging of carbon steel flanges is mainly based on forgings with small production batch. Forging hammers, hydraulic presses and other forging equipment are used to form and process the blank, and qualified forgings are obtained. The basic processes of free forging of carbon steel flanges include upsetting, lengthening, punching, cutting, bending, twisting, staggering and forging. Free forging adopts hot forging.
