Views: 0 Author: Site Editor Publish Time: 2021-08-20 Origin: Site
The forging of weld neck flange can be divided into free forging, frog forging, extrusion, die section, closed die section and closed impact forging. The forging technology of flat welding flange can be divided into free forging, rough forging, extrusion, die forging, closed die forging and closed cutting forging. Closed die forging and closed pull forging have high material control due to the absence of flash. With a construction process or several processing processes on the outline analysis of the completion of large forgings finishing. Since there is no flight edge, the forged force area is eliminated and the required load is eliminated. However, it should be detailed that the blank is not completely limited, so it is necessary to strictly control the volume of the blank, control the relatively important position of the forging die and constantly measure the forging technology, and cheerfully eliminate the wear of the forging die.
According to the working mode of forging die, forgings can be divided into rotary forging, rotary forging, cross wedge rolling, ring rolling and cross rolling. Precision forging can also process rotary forging, rotary forging and ring rolling. In order to improve the speed of data processing, roller forging and cross rolling can be used as the previous process of processing high data. As with free forging, torsion forging technology is also a local forming process, and its benefit is that it can also achieve enterprise formation when forging force is small by comparing with the size of forgings. In this type of forging, including free forging, the material expands from the outside of the die surface to the free profile during machining, making it difficult to guarantee accuracy. Thus, by controlling the forging die and the goal of the rotary forging process with a calculator, a product with a large appearance and high precision can be obtained with a lower forging force. For example, the enterprise production and management of many varieties, large size of steam turbine blades and other forgings.
1. Connect the pipes to maintain good sealing performance.
2.if a section of the pipeline system of the enterprise has some problems, easy to replace a section of the pipeline; 3. Whether there are various faults in the pipeline is convenient for dismantling and testing.
The heat resistance of flat welded flange is very good: when the working water temperature is 70 degrees, the softening temperature is 140 degrees.
1. high impact: because of its unique impact strength computer energy than other solid wall tube has significantly improved, its ring stiffness requirements commensurate with the solid wall 1.3 times.
Long service life under rated service temperature and pressure, the service life of more than 50 years, with anti-ultraviolet, radiation function, so that the product will never fade.
2. good corrosion resistance: in addition to a few hydrogenating agents, can resist the corrosion of a variety of learning chemical reaction media, the flange has very excellent acid resistance, alkali resistance, corrosion resistance, will not appear rust, will not be eroded, will not become the breeding of some bacteria, no electrochemical erosion.