Large flange gasket is a ring that can produce plastic deformation, and has a certain strength of the material made of the ring. Most of the gasket is cut from the non-metallic plate, or by the professional factory according to the size of the production, its material for the asbestos rubber sheet, asbestos board, polyethylene plate; also useful thin metal plate (white metal, Stainless steel) will be asbestos and other non-metallic materials wrapped together made of metal gasket; there is a thin steel belt with the asbestos wound together wound wound gasket.
Speaking of large flange of the core production, we first introduce the production process of stainless steel flanges, as the name suggests, stainless steel flange is made of stainless steel plate made of the flange. Usually, it consists of a horn-shaped core, the diameter of the core from fine to coarse, the entire push process is the process of expansion and bending.
Into the topic, large flange of the core is how to make it? Take the common national standard elbow to do it, if it is to make a long radius elbow, we need to select the product specifications, and then put the pipe material, and then calculated according to the calculation of a good expansion rate. After the completion of the basic processing, but also the need for a series of finishing products, that is, the appearance of the product and other details for further processing, which mainly includes shot peening, playing steel, surface spraying and packaging work The
Large flanges are common flanges with flat welded flanges and butt welds. Flat welding flange of the poor, suitable for the pressure p ≤ 4MPa occasions; welding flange, also known as high-neck flange, high rigidity, suitable for high pressure temperature occasions. There are three types of flange sealing surface: flat type sealing surface, suitable for pressure is not high, the media non-toxic occasions; convex sealing surface, for a slightly higher pressure occasions; tongue seal surface, for flammable, explosive , Toxic media and high pressure occasions. Different nature of the flange fittings in different areas with good product performance, to adapt to the occasion and space, the effect will be different.