Production characteristics and application of the flange of the rolling system in Hebei Province

　　Large coil flange is a flange in the machinery industry in general use and promotion, get the user's praise and favor. Volume of flange on a wide range of uses, use range are determined in accordance with different characteristics, used for medium conditions more relaxed, such as low non clean compressed air, low pressure circulating water and its advantages are cheaper. The coiling flange of the volume of flange, applicable to nominal pressure is not more than 2.5MPa steel pipe connections, the volume of the flange sealing surface can be made smooth type, bump and tenon slot. Smooth type roll application of flange, the other two methods in use is relatively common. Rolled flange includes many types and models, the butt welding steel flanges for the flange and pipe butt welding, mainly used in welding technology, good use features and performance, reasonable structure, strength and stiffness is larger, can withstand the high temperature high pressure and repeated bending and temperature fluctuation, sealing reliability, nominal pressure is 0.25 ~ 2.5MPa rolled flange with convex type sealing surface. Coil flange main application environment is appropriate, need to be determined according to the specific circumstances, to ensure that the volume of the specific use of the flange of the value and performance, withstand high temperature and high pressure.

　　Large volume with flange plate cut into strips, and then roll into a circle. Then the processing line, bolt hole etc.. This is generally a large flange, the maximum can be 7 meters. This kind of flange has a good quality assurance. Because the raw material is the medium plate, the density is good. Material with carbon steel, stainless steel, alloy steel, etc..