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What are the differences between cold and hot forged flanges


Release time:

2023-02-15

  What are the differences between hot and cold forged flanges, hello everyone, today on the necessary industrial accessories with the pipeline flange to talk about the point of view. Flange is an accessory that connects between receiving and piping. How to manufacture flanges? What are the cold and hot forgings that are often mentioned? Let us understand today to understand. What is hot forging of flanges? Is it traditionally understood as heating? Casting with fire? What we know in the industrial field is that when hot forging, because of the small deformation energy and resistance to deformation, it is possible to cast large flanges with messy shapes.

  Therefore, if you want to manufacture flanges with high scale accuracy, you can use hot forging in the temperature range of 900-1000°C! This is very severe Oh! In addition, attention should be paid to improving the working environment of hot forging. Compared with other temperature areas of casting, casting mold life is also different, but its use of a wide range and low cost has always been liked. Why do we want to hot forging flange? Definitely the embodiment of talent! The intention of hot forging flange is mainly to reduce the deformation resistance of the metal, and then reduce the tonnage. We can improve the mechanical function of steel. Can conclude that hot forging can improve the function!

  The cold forging of the flange is a small change in the scale of the flange when casting at low temperatures. What is the temperature? Casting at 700 ℃ or lower, the scale is very small and we can observe no decarburization on the surface. Thus, only by manipulating a reasonable scale, cold forging is simple to achieve outstanding scale accuracy and exterior finish.

  Temperature and smoothness are well done, and warm forging below 700°C can also achieve good accuracy. Cold forging is a forming process below the recrystallization temperature of the material, and casting at a temperature below a certain level. We can analyze that cold forging material at room temperature has a high resistance to deformation and can sometimes replace cold working slices. Cold forging can strengthen the metal and the strength of the flange will be increased. In general, high value-added products use cold forging to reduce production costs, and can also be combined with these processes to form a composite process.