News
Home > News > Content

The cold forging and hot forging of the flanges are different

Edit: Jingjiang Jinlun Machine Manufacturing Co.,Ltd    Date: Jun 09, 2017

The cold forging and hot forging of the Flanges are different
 Flanges hot forging is: hot forging, due to deformation and deformation resistance are very small, you can forge the shape of the complex large Flanges. To obtain high-precision Flanges, can be 900-1000 ℃ temperature field with hot forging processing. In addition, pay attention to improve the hot forging work environment. Forging die life (hot forging 2-5 thousand, warm forging 1-2 million, cold forging 2-5 million) compared with other temperature field forging is shorter, but its degree of freedom, low cost The The purpose of the hot forged Flanges is to reduce the deformation resistance of the metal, thus reducing the forging pressure required for the deformation of the bad material, so that the tonnage of the forging equipment is greatly reduced; the casting structure of the steel ingot is changed, Recrystallization, coarse as - cast microstructure into small particles, and reduce the shortcomings of cast structure, improve the mechanical properties of steel;

The cold forging of the Flanges is a small change in the size of the Flanges at low temperature forging. In 700 ℃ below forging, the formation of less oxide, and the surface without decarburization phenomenon. Therefore, as long as the deformation can be in the range of forming energy, cold forging easy to get a good dimensional accuracy and surface finish. As long as the control of good temperature and lubrication cooling, 700 ℃ below the warm forging can also get very good accuracy. Cold forging, cold extrusion, cold heading and other plastic processing collectively. Cold forging is the material recrystallization temperature below the molding process, is the recovery temperature for the following forging. Production of the habit of the rough for the rough forging known as cold forging. Cold forging materials are mostly deformation resistance at room temperature is small, better plastic aluminum and some alloys, copper and some alloys, low carbon steel, carbon steel, low alloy structural steel. Cold forging surface quality, high dimensional accuracy, can replace some of the cutting. Cold forging can strengthen the metal and improve the strength of the Flanges.

The development of cold forging technology is mainly the development of high value-added products, reduce production costs, at the same time, it is constantly to the cutting, powder metallurgy, casting, hot forging, sheet metal forming process infiltration or replaced, Technology combined to form a composite process.
Now many people will come into contact with the Flanges, but do not know what the Flanges in the end what kind of thing, the Flanges appears in people's lives everywhere, the following to explain in detail, the use of the Flanges and the connection the way. Flanges connection is to put two pipes, fittings or equipment, first fixed on a Flanges, between the two Flangess, plus a Flanges pad, bolted together to complete the connection The Some fittings and equipment have their own Flangess, but also belong to the Flanges connection. Flanges connection is an important way to connect pipe construction. Flanges connection easy to use, able to withstand greater pressure. The following are the same as the "
In industrial piping, the use of Flanges connections is very extensive. In the family, the pipe diameter is small, and is low, can not see the Flanges connection. If in a boiler room or production site, full of Flangesd pipes and equipment. According to the connection type Flanges connection types can be divided into: plate flat welding Flanges, with neck flat welding Flanges, with neck welding Flanges, socket welding Flanges, threaded Flanges, Flanges cover, with neck welding ring Loose Flanges, flat welding ring loose Flanges, ring groove Flanges and Flanges cover, large diameter flat Flanges, large diameter high neck Flanges, character blind plate, butt welding ring loose Flanges.

Jingjiang Jinlun Machine Manufacturing Co.,Ltd