The flange can be classified by size: small flange, medium flanges, large flange. Connection type can be divided into: plate welded
flange, energetic flat welded flange, welded flange, socket welding flanges, threaded connection flange here focuses on the production
process and the use of the large flange.
Large-scale roll flange is a flange, use and promotion, in the machinery industry in general and popular acclaim from the user s. Rolled
flange wide range of uses, the use of different characteristics to be determined and used for medium conditions easing, such as low-
voltage non-clean compressed air, low pressure circulating water, its advantage is that the price is cheaper. Rolled flange for
connection pipe at a nominal pressure of not more than 2.5MPa rolled flange sealing surface can be made into a smooth style, bump and
tenon slot three smooth style rolled flange application of the largest two other ways of rolling the flange is relatively common in use.
Rolled flange including a variety of types and models, butt welding steel flanges for the counterpart welding of the flange and pipe,
mainly used in welding technology, and to have good performance characteristics and performance, reasonable structure, strength and
stiffness withstand the high temperature and high pressure and repeated bending and temperature fluctuations, sealing and reliable, the
nominal pressure of 0.25 ~ 2.5MPa rolled flange bump-type sealing surface. Rolled flange application environment is appropriate,
determined according to the specific situation to ensure that the specific use of value and performance of the roll flange bear live in
high-temperature high-pressure.
Large roll flange plate cut into slats, then the volume made round re-processing the waterline, and bolt holes. So generally large
flanges, can be 7 meters. Such flange has a good quality assurance. Because the raw materials in plate density. The materials are carbon
steel, stainless steel, alloy steel.
In the machinery industry, many manufacturers use the flange (also can be said is to strengthen the ring) only as a connection or
support role, the need to strip (flat steel) can be used directly in the volume flange on the device directly rolled into the ring can,
this processing method the provincial labor and materials, significant cost savings.
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