Note on the use of welding flange

Note on the use of welded flanges: Calculating and unloading can improve the utilization of raw materials and achieve one of the important aspects of the refinement of welded flange blanks. Excessive raw materials not only cause waste of the blank, but also increase mold cavity wear and energy loss. If the blank is not left a little margin, it will increase the difficulty of adjustment of the production process and increase the scrap rate of the welded flange.

In addition to the welding flange manufacturer, the production quality of the blanking end face has a great influence on the quality of the process and die forging. The ultimate goal of heating is to reduce the forging deformation force and improve the plasticity of steel products. However, heating the welding flange also brings a series of production problems, such as overheating, oxidation, decarburization and over-burning. Accurate control of the initial die forging and final die forging temperature has a great influence on the structure and performance of the butt flange. Flame furnace heating has the advantages of low production interest and wide applicability, but the heating time is long, oxidation and decarburization are easy to occur, and the production conditions need to be continuously improved. The electric induction heating furnace has the characteristics of quick heating and less oxidation, but has poor adaptability to the shape and material variation of the blank. Die forging is produced under the action of external force. Therefore, the correct calculation of deformation force, selection of welding flange production equipment, and basis for forging die calibration.

The service life of the welded flange is long, so the design of the insulation flange, low-pressure flange and insulation flange manufacturer should pay attention to the breakthrough of detail, and the performance of the product is continuously improved by using the clever design of the product. Insulating flanges, low-pressure flanges, and insulating flange manufacturers are collectively referred to as pipe flange joints that have both the sealing performance required for buried steel pipelines and the electrical insulation properties required for electrical corrosion protection engineering.

Butt welding flange manufacturers include a pair of steel flanges, insulating seals between the two flanges, flange fasteners and fastener insulation parts, and a pair of steels that have been welded separately to the two flanges. tube. Insulating flanges and insulated joints are products produced in the petroleum, chemical and other industries. They are simple in structure, reliable in use and reliable in use.

The heat preservation performance of the welded flange is good: because the thermal conductivity of the flange material is low, its heat preservation property is good. Flange connections are widely used in industrial piping. In the home, the pipe diameter is small, and it is low pressure, and the flange connection is not visible. If it is in a boiler room or production site, flanged pipes and equipment are everywhere.

The flange of the welding flange manufacturer shall be marked according to the nominal diameter, the nominal pressure, the sealing surface code, and the code series of the steel pipe used (with the metric pipe code "Series 2", with the British pipe not marked ) and the order of the standard numbers. Good corrosion resistance: in addition to a few hydrogenating agents, it can withstand the corrosion of a variety of chemical media. The flange has excellent acid, alkali and corrosion resistance, will not rust, will not erode, will not breed bacteria, no Electrochemical erosion.