Langfang DingYang

What Kinds of Forging Flange Can Be Divided Into?

fittingflange | 20 December, 2018 11:15

Flat-welded flange has poor rigidity, which is suitable for pressure P <4 butt-welded flange is also called high neck which has high rigidity and is suitable for high pressure and temperature there are three types of href="">stainless steel flange sealing surface: flat sealing surface, which is suitable for situations with low pressure and non-toxic medium; concave and convex sealing surface, which is suitable for situations with slightly higher pressure; mortise sealing surface, which is suitable for situations with flammable, explosive, toxic medium and high pressure. Gasket is a kind of ring made of material which can produce plastic deformation and has certain strength. Most gaskets are cut from non-metallic sheets or made by professional factories according to specified sizes. The materials of gaskets are asbestos rubber sheets, asbestos sheets, polyethylene sheets, etc. There are also metal-clad gaskets made by wrapping asbestos and other non-metallic materials with thin metal sheets (white iron sheets, stainless steel). Flat welding flange forging can be divided into free forging, upsetting, extrusion, die forging, closed die forging, closed upsetting. Closed die forging and closed upsetting have high material utilization rate because they have no flying edge. It is possible to finish complex forgings with one or more processes. Because there is no flying edge, the force area of the forging decreases and the load required decreases. However, it should be noted that the blank can not be completely limited, so the volume of the blank should be strictly controlled, the relative position of the forging die should be controlled, and the forging parts should be measured, so as to reduce the wear of the forging die. The main functions of flat welded flange are as follows: 1. Connect the pipeline and keep the pipeline in good sealing performance. 2. If there is a problem in a certain section of pipeline, it is convenient to replace a certain section of pipeline. 3. Pipeline failure, easy to disassemble and detect. If flange surface is flange, it is the connection fittings of metal pipeline. It is welded vertically at the end of the pipeline. After the two flanges are aligned, they are connected together by bolts and caps, and the pipelines are connected together. The stainless steel weld neck flange surface can connect the pipeline in use and ensure the normal connection and unimpeded of the pipeline. It plays an important role and value. The diaphragm beam is a structure in which the inner part of the box girder (or T girder) is perpendicular to the box (or beam) and plays a connecting and reinforcing role. The diaphragm beam of the box girder is poured together with the box girder. A part of the diaphragm beam of the T girder is poured together with the T girder. After the T girder is hoisted and put in place, the adjacent T girder is pre-welded and the formwork is cast in place.


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