Large-diameter steel flange is a kind of steel flange, which is widely used and promoted in the machinery industry, and has been well received and favored by users. Large-diameter steel flanges are widely used, and the scope of use is determined according to different characteristics. They are mostly used in situations where the medium conditions are relatively mild, such as low-pressure non-purified compressed air and low-pressure circulating water. Its advantage is that the price is relatively cheap. The rolled steel flange is suitable for the connection of steel pipes with a nominal pressure not exceeding 2.5MPa. The sealing surface of the rolled steel flange can be made into a smooth type. Special rolled steel flanges are also more common in use.
The large-diameter steel flange is cut into slats by the middle plate and then rolled into a circle. Then the water line, bolt holes, etc. are processed. This is generally a large steel flange, which can be up to 7 meters. The raw material is the medium board with good density. Large-diameter steel flanges are made of carbon steel, stainless steel, alloy steel, etc.
There are three types of large-diameter steel flange sealing surfaces: flat sealing surface, suitable for occasions where the pressure is not high and the medium is non-toxic; concave-convex sealing surface, suitable for occasions with slightly higher pressure; Inflammable, explosive, toxic media and high-pressure occasions. What is the quality process of large-diameter steel flanges?
The quality process of large-diameter steel flanges is as follows:
Large-diameter steel flanges The large steel flanges produced by different processes have their advantages and disadvantages, but this is not the case. For large-diameter steel flanges made of medium plates, the treatment of the joint position is the most critical. If this position is not welded well, leakage will occur. As for the forged large-diameter large steel flange, there will be a layer of skin on the steel flange after the finished product comes out. If the bolt hole is just punched at the position of the layer, water leakage will occur when it is pressed.
We use the above quality technology to make steel flanges, and correct operation to make a good product is what we all need to consider.
Post time: Apr-10-2023