Flange is a part connected to pipes, containers and equipment. It is connected to pipes, containers and equipment by bolts (or welding). The main function of the flange is to increase the connection strength of the connecting parts to prevent leakage at the connection.

This flange material is widely used in aircraft engines, rocket engines and spacecraft structures. With the continuous development of aerospace technology, the application prospect of GH4145 flange will be further expanded.

When the specific pressure on the gasket surface reaches a certain value, it will deform and fill the unevenness on the sealing surface to make the connection tight and leak-free. Some pipe fittings and equipment have their own flanges, which are also flange connections. Flange connection is an important connection mode in pipeline construction.

There are many reasons for the defects of precision forgings in the industrial field, including poor forging process and unreasonable mold design. These problems need to be detected by a microscope. However, many microscopes on the market today are not intelligent and precise enough, making the detection process more complicated and difficult. Only the intelligent and refined microscope required for research and detection is what users really need. Olympus BX53M positive microscope has done a very good job in this respect, and has done every function required for testing very well, helping forgings to be tested more precisely.

In the process of development, the use of free forging process to the overall profile forging of the third generation of nuclear power key components AP1000 evaporator cone cylinder, because of the profile process and numerical simulation and other technologies, once became a difficult point in China's heavy forging link.