Forging flange

Forging flange is a flange products in better mechanical properties of a product, its raw material is commonly tube billet, and then after cutting to constantly pounding, to eliminate the segregation of steel ingot defects, osteoporosis, etc. Both price and mechanical properties are a notch above normal casting flanges. Flange is the part that connects the pipe with the pipe and valve and connects to the pipe end. It is also useful for the flange in the import and export of the equipment. The connection between the two devices is the part connecting the pipe to the pipe and connecting it to the end of the pipe. Is a kind of ancillary accessories for piping. Forged flange main materials are carbon steel, alloy steel, stainless steel. The main standards include national standard, electric standard, American standard, German standard, daily standard and so on. Main anticorrosive treatment is coated and galvanized. The pressure of forging flange is good, and it is suitable for high pressure and high temperature work environment.

We can also understand the production process flow of forged flange:

The forging process is generally composed of the following processes, namely, the selection of quality steel billet, heating, forming and cooling. The forging process has free forging, die forging and membrane forging. In the production, according to the quality of the forging, the quantity of production of different forging methods.

Free forging productivity is low, the processing margin is large, but the tool is simple, the general use is large, so it is widely used for forging the simple single piece, small batch production of forging. The free forging equipment has air hammer, steam - air hammer and hydraulic press, which are suitable for the production of small and large forgings. Die forging productivity is high, simple operation, easy to achieve mechanization and automation. The size of die forging is high, the machining allowance is small, the distribution of the fiber is more reasonable, and the service life of the parts can be further improved.

Free forging

Basic process: when forging freely, the shape of forging is gradually forged through some basic deformation process. The basic process of free forging has upsetting, drawing, punching, bending and cutting.

1. Upsetting upsetting is the operation process that makes the original billet go along the axis to reduce the height and increase the cross section. This process is often used for forging gear billets and other disc shaped forgings. Upsetting is divided into all upsetting and local forging.

2. Long drawing length is the forging process that causes the length of the billet to increase and the section decreases, which is usually used to produce the shaft type blank, such as lathe spindle, connecting rod, etc.

3. The forging process of punching holes through holes or holes in the blank.

4. Bending causes the billet to bend to a certain Angle or shape forging process.

5. Reverse the forging process that causes the part of the billet to rotate in a certain Angle relative to the other part.

6. The forging process of cutting off the blank or removing the head of the material.

Second, the die forging

Die forging is known as the model forging, and the heated billet is placed on the forging die that is fixed on the die forging equipment.

1. Process of die forging of basic process of die forging: feeding, heating, pre-forging, finishing forging, punching, cutting edge, trimming and blasting. Commonly used process has upsetting, drawing, bending, punching, forming.

2. Commonly used die forging equipment have die forging hammer, hot die forging press, plain forging machine and friction press.

Generally speaking, forging flange is of better quality, usually through die forging, the crystal structure is fine, the intensity is high, but the price is also more expensive.

Whether it is casting flange or forging flange, it is a common manufacturing method for flanges. It can be used to see the strength requirements of the parts that need to be used. If the requirements are not high, the cutting flange can also be used.