What are the differences between cold forging and hot forging of slip-on flanges?

Views : 717
Author : admin
Update time : 2020-01-08 16:26:05

  Cold forging of slip-on flanges is a process of forging at low temperature, and the size of slip-on flanges changes little. When forged below 700 C, less oxide scales are formed and no decarbonization occurs on the surface. Therefore, as long as the deformation energy is within the range of forming energy, cold forging can easily obtain good dimensional accuracy and surface finish. As long as temperature and lubrication cooling are well controlled, warm forging below 700 C can also achieve good accuracy. Cold die forging, cold extrusion, cold upsetting and other plastic processing. Cold forging is a forming process below the recrystallization temperature of the material and a forging process below the recovery temperature. Cold forging has good surface quality and high dimensional accuracy, which can replace some cutting processes. Cold forging can strengthen metal and improve the strength of DIN2502 RF Pn16 Stainless Steel Slip-on Flange.

  The development of cold forging technology is mainly to develop high value-added products and reduce production costs. At the same time, slip-on flanges is constantly infiltrating into or replacing cutting, powder metallurgy, casting, hot forging, sheet metal forming process and other fields. It can also be combined with these processes to form a composite process.

  Hot forging of slip-on flanges is: in hot forging, large slip-on flanges with complex shapes can be forged because the deformation energy and resistance are very small. To obtain slip-on flanges with high dimensional accuracy, hot forging can be used in the temperature range of 900-1000 C. In addition, attention should be paid to improving the working environment of hot forging. The life of forging die is shorter than that of forging in other temperature domains, but it has higher freedom and lower cost. The main purpose of hot forging slip-on flanges is to reduce the deformation resistance of metal, thus reducing the forging pressure required for bad material deformation and greatly reducing the tonnage of forging equipment; changing the as-cast structure of steel ingot used for slip-on flanges, recrystallizing in the process of hot forging, the coarse as-cast structure becomes a new structure with fine grains, and reducing the defects of as-cast structure and improving the mechanical properties of steel.

Related News
Read More >>
Application of stainless steel pipe caps Application of stainless steel pipe caps
Mar .26.2024
Hebei Shengtian Pipe Fittings Group Co., Ltd. is a manufacturer specializing in the production of ASTM B16.9 ASTM A403 WP 316 Buttweld Stainless Steel End Caps.
The ASME B16.9 Buttweld CS Pipe Fitting Eccentric Reducer has been sent to Germany The ASME B16.9 Buttweld CS Pipe Fitting Eccentric Reducer has been sent to Germany
Mar .21.2024
Hebei Shengtian Pipe Fittings Group Co., Ltd. will check every order at all levels before delivering high-quality pipe fittings to customers. Shengtian Group firmly believes that only quality first can it serve every customer well.
Pipe fitting tee implementation standards and precautions Pipe fitting tee implementation standards and precautions
Mar .19.2024
2 Inch ASTM A234 WPB Carbon Steel Seamless Equal Tee is a pipe connection that can be used to connect and distribute media
A batch of ASTM A234 WPB 22.5 Degree SCH 40 LR Pipe Fitting Elbow goes to Brazil A batch of ASTM A234 WPB 22.5 Degree SCH 40 LR Pipe Fitting Elbow goes to Brazil
Mar .14.2024
Our old Brazilian customer ordered a batch of ASTM A234 WPB 22.5 Degree SCH 40 LR Pipe Fitting Elbows in the middle of last month. The production has been completed and packed and ready to be sent to the port.