The processing method of Stainless steel flange
Also known as flange or flange flange. Tube and pipe flanges are so interconnected parts, connected to the pipe end. There are holes on the flange bolts so that the two flanges tightly connected. Between the flange sealing Gasket. Flange points threaded connection (wire connected) flange and welding flange.
Feature of flange
Also known as flange or flange flange. Tube and pipe are interconnected parts. Connected to the pipe end. There are perforations can be worn bolts, so that the two flanges abuts on the flange. Between the flange sealing gasket. Flange tube pipe with finger flange (flange or disk access) for. It may be cast from, can also be screwed or welded constituted. Flange connection by a pair of flanges, a gasket and a number of bolts and nuts. Spacer placed between two flange sealing surface, tighten the nut over the gasket surface deformation after pressure reaches a certain value, and fill the sealing surface uneven, so that the coupling does not leak tight. Some fittings and equipment already comes with flange, also belongs to the flange connection. Flange connection is an important connection pipeline construction.
Flanged easy to use, able to withstand greater pressure. In industrial pipe, flange connection using a very wide range. Within the family, the pipe diameter is small, and low pressure, invisible flange connection. If a boiler room or production site, everywhere flange connection pipe and equipment.
Popular speaking, the role of the flange is such that the pipe connection at a fixed and sealed.
Mengcun Hui Autonomous County maoxing flange pipe factory - located in China pipe fittings are REHABILITATION Zhangguanying shop industrial zone, located in the Bohai Economic Development Zone, north of Beijing and Tianjin, only 50 kilometers away from Huanghua Port, surrounded by 205 State Road, the Beijing-Shanghai high-speed, high-speed Shi Huang, vertical and horizontal road, traffic is very convenient. introduction about Stainless Steel Flange as follows:
1, in order to prevent the heat generated between the eyes Falangaijia corrosion, welding current should not be too large, less than about 20% of the carbon steel electrode, the arc should not be too fast cooling between the layers to narrow weld appropriate.
2, the use of electrodes should be kept dry, titanium calcium type should be dried 150 ℃ 1 hour a low hydrogen type shall be dried 200-250 ℃ 1 hours (can not be repeated drying, easy to crack or the coating peeled off) to prevent electrode coating viscous oil and other dirt, so as not to cause the weld to increase the carbon content and impact of the quality of the weldment.
3, Stainless Steel Welded Pipe flanges, subjected to repeated heating carbide precipitation, reduce corrosion resistance and mechanical properties. 4, chromium stainless steel flanged fittings after welding sclerosing American Standard flange large, easy to crack. If after using the same type of chromium stainless steel electrode (G202, G207) welding must be above 300 ℃ preheating and welding slow cooling process of about 700 ℃. If the weldment after weld heat treatment is not possible, it should be made of stainless steel flanged fittings electrode (A107, A207).
5, stainless steel flanges, to improve corrosion resistance and weldability and appropriately increase the stability of an appropriate amount of elements Ti, Nb, Mo, etc. and weldability compared with the chromium stainless Steel Flange better. When using the same type of chromium stainless steel flange electrode (G302, G307), it should be tempered after more than 200 ℃ preheating and welding of around 800 ℃. If you can not heat treated weldments should be made of stainless steel flanged fittings electrode (A107, A207).
6, Stainless Steel Pipe flanges, welded flange welding rod has good corrosion resistance and oxidation resistance, widely used in chemical, fertilizer, petroleum, medical machinery.