Carbon Steel Forged Flanges

Carbon steel forged flanges are mainly end flange connectors or flange plates whose flange bodies are made of carbon steel metal. The main production processes include casting, medium plate rolling, forging, medium plate cutting and other different methods. The quality of carbon steel flanges made by craftsmanship is also different.

Dimensions Of Carbon Steel Forged Flanges

Carbon steel forged flanges are mostly produced in China according to the dimensions and tolerance ranges required by national standards. Usually, if they are inferior carbon steel flanges, they will mostly be technologically obsolete or the steel itself will have cracks, pores, etc. after welding.

In the case of water leakage, in the industry, the flange pieces of carbon steel flanges that are not produced according to standard sizes are also called second-standard flanges. The pressure marks of carbon steel forged flanges are divided into PN marks and Class marks. For PN marks, there are “PN2.5; PN6; PN10; PN16; PN25; PN40; PN63; PN100; PN160; PN250; PN320; PN400” has 12 pressure levels, while the Class mark has 6 pressure levels, mainly “Class150; Class300; Class600; Class900; Class1500; Class2500”.

The reason why carbon steel forged flanges are so useful is because of their good performance in connecting pipes and keeping them sealed. The use of carbon steel forged flanges can not only achieve perfect connections between pipelines, but also make the replacement and disassembly of pipelines much easier during pipeline maintenance due to the participation of carbon steel forged flanges.

Carbon steel flanges have a great impact on the machinery industry and make great contributions to economic development. Therefore, we must pay attention to the development of carbon steel flanges, comply with the development trends of modern industry, and integrate with the international carbon steel flange forging industry.

The Forging Process Of Carbon Steel Forged Flange

The forging process of carbon steel forged flange, according to the form of forging die movement, can be divided into oscillating rolling, oscillating forging, roll forging, cross wedge rolling, ring rolling, cross rolling and other types.

Among them, oscillating rolling, oscillating forging and rolling rings can be processed by precision forging. In order to improve material utilization, roll forging and cross rolling can be used in the front-end process of slender materials. Therefore, it is difficult to ensure the accuracy of forgings.

The Production Of Carbon Steel Forged Flange

When the carbon steel forged flange production blank is cold forged, it will deform and work harden, which will cause the forging die to bear a high load.

Therefore, it is necessary to use a high-strength forging die during forging, and use Treated with a hard lubricating film to prevent wear and adhesion. In addition, in order to avoid cracks in the carbon steel flange blank, an intermediate annealing process is also required to improve the deformation resistance of the carbon steel flange.

Carbon steel flange is a flange that uses flanges, steel rings, etc. to set the flange on the pipe end, and the flange can move freely on the pipe end.

The Working Principle Of Carbon Steel Forged Flanges

There is a certain working principle for forging flanges in carbon steel forged flanges. According to the production process and production technology and the use of carbon steel flanges, there is a certain working principle. The working principle is to utilize the insulation properties of carbon steel flange gaskets. High-strength carbon steel flange insulation, carbon steel flange on both sides of the electrically insulating flange factory.

Mary iron is commonly used with galvanized pipes (energy-saving iron) and is stronger than steel and stronger than iron. Low carbon steel and low carbon steel, the carbon content of low carbon steel makes it easy to accept various processing such as forged carbon steel flange processing, welding and cutting, commonly used in the manufacturing of chains, rivets, bolts, and shafts.

Standards And Requirements For Carbon Steel Forged Flanges

When planning carbon steel forged flanges, pay attention to 5 points. Tool design, carbon steel forged flanges are composed of 2 900 clamping base plates, 2 flange plates, 2 vertical plates and 4 stiffening plates. In order to ensure the rigidity of the tool, the welding joint of the connecting plate should be welded through the groove with a welding angle of 20-30mm.

The corresponding bolt holes ensure that the flange can be accurately connected to the flange bracket. There is a space between the back of the small end flange and the pallet, which can be placed in a small manual jack and follow the intention of the vertical plate, in the flange plate A notch is formed on the tool to fit the elbow into the tool. A tool with a thicker steel plate forming a rough groove structure will suffice. Rigidity requirements during cutting.

 The tooling requirements require that the two flange surfaces of the carbon steel forged flange be straight to each other, while the worktable of the vertical lathe is reversed, so the main function of the tooling is to operate the big head flange. Upper bolt holes connect the tool to the flange. When clamping the tool to the table, ensure that the plane of the flange to be machined is concentric and parallel to the vertical lathe table.

In order to reduce the number of tools, the tool should be able to change the direction of the tool to ensure that both end flanges of the elbow can be machined on one tool.

When used together, the mold must have satisfactory rigidity, otherwise it will seriously affect the processing quality of the flange sealing ring groove. Therefore, in a satisfactory environment, the height of the tool should be as low as possible to increase rigidity and ease of operation.

 The radius of the tool and carbon steel flange should not exceed the working radius of the vertical car and can be easily adjusted when clamping the tool.

Mold stiffness verification, the slotted structure cantilever beam is stressed when the mold rotates, bends and changes, and the deflection and rotation angle should be verified. Through process inspection, the maximum deflection is 7.27×10-7m, the maximum angle is 8.969×10-5, the deformation is very small, and steel bars are added to the relevant parts.

Things To Note When Producing Carbon Steel Flanges

The carbon steel flange is composed of two clamping base plates with an included angle of 90°, two flange supporting plates, two vertical plates and four reinforced rib plates.

In order to ensure the rigidity of the equipment, the welding seam of the connecting plate should be opened so that the groove is welded through and the welding fillet is 20-30mm high.

Corresponding bolt holes are drilled on the flange support plate, and there is a gap between the back of the small end flange and the support plate to accommodate a small manual jack. Cut out the notch so that the elbow can be installed in the tool.

When clamping the tooling on the workbench, the flange plane to be processed should be concentric and parallel to the workbench of the vertical lathe. The tooling should be able to change the clamping position to ensure that both ends of the elbow can be processed on one tooling. Flange, this is to reduce the number of tooling.

At the same time, the tooling needs to be rigid enough, otherwise it will seriously affect the processing quality of the flange sealing ring groove.

Elite piping manufacture is committed to the production and sales of carbon steel forged flanges. Our carbon steel forged flanges are available in various models and can certainly meet your production needs. You are welcome to contact us at any time.