Stainless Steel Flanges Information
The flange is a disc shaped part. Mainly used in pipeline engineering. The two flanges are used together with the flange on the valve. In plumbing, flanges are primarily used for pipe connections. In the pipelines to be connected, various types of flanges are installed. For low-pressure pipelines, and the welding flanges are used at pressures above 4 kg. A gasket is placed between the two flanges and then bolted. Different pressure flanges have different thicknesses and use different bolts.
The stainless steel flanged stamping elbow has high joint strength, vibration resistance and strong connection, avoiding the possibility of “combined” loosening, convenient and quick construction, avoiding the on-site welding operation and the long service life of the ferrule and the stainless steel cone.
Stainless Steel Flanges Service Life
Under all-round protection, each part of the coating is galvanized, even in the depression, sharp corners and hidden areas can be fully protected, galvanizing process is more effective than other coating construction methods, and can be installed on the map Brush the desired spots to avoid.
In the mold, in the high-pressure elbow laser quenching technology, when the laser beam is rapidly heated by the external steel material, it undergoes a phase transformation and forms a martensite hardened layer, and the high-pressure alloy elbow is hard and easy to crack after welding. Polishing can fill surface pores, scratches and other surface defects to improve fatigue resistance, corrosion resistant flanges and flange plates, flanges are the components that connect the pipe to the pipe and connect to the end of the pipe; The connection between the two devices, such as the flange of the reducer, means that the flanges, washers and bolts are connected together as a group. Combined sealing structure, detachable connection, pipe flange refers to the flange used in the pipe in the pipeline installation.
Method for extending flange life
When the stainless steel elbow is welded, repeated heating will precipitate carbides, and the refracted carbide will reduce corrosion resistance and mechanical properties. Therefore, when welding stainless steel elbows, do not repeat heating to prevent the reflection of carbides from affecting the corrosion resistance and mechanical properties of stainless steel elbows.
In order to prevent the corrosion between the eyes due to heating, the welding current should not be too large when welding the stainless steel elbow, about 20% less than the carbon steel electrode, the arc should not be too long, the layer is fast cold, and the narrow bead is suitable. Therefore, when welding with stainless steel elbow welding rods, it is necessary to properly control the welding current to prevent excessive current from causing corrosion between the eyes and affect the welding quality of the stainless steel elbow.
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