Austenitic stainless steel tube hot bending technology analysis

Austenitic stainless steel pipe has good corrosion resistance and high strength, widely used in petroleum, chemical, aviation, shipping and other fields. Hot bending is a commonly used pipe processing methods, can make the pipe according to the design requirements for bending. Material selection, hot bending machinery and equipment, hot bending process and application cases of austenitic stainless steel pipe hot bending technology for detailed analysis.

Material selection

Characteristics and classification of austenitic stainless steel pipe: austenitic stainless steel pipe has good corrosion resistance, high temperature and good processing performance, can be divided into two types of austenitic stainless steel seamless pipe and austenitic stainless steel welded pipe.

Material selection considerations: When choosing austenitic stainless steel tube for hot bending, you need to consider the material, size, wall thickness, use of the environment and so on. Also consider the corrosion resistance of the tube, mechanical properties and processing performance.

Hot bending machinery and equipment

Types and characteristics of hot bending machine: common hot bending machine can be divided into coil-type hot bending machine, hydraulic hot bending machine and roll-type hot bending machine. Different types of hot bending machine for different sizes and wall thicknesses of austenitic stainless steel tube.

The use of hot bending machine points: in the use of hot bending machine for austenitic stainless steel pipe hot bending, you need to select the appropriate mold, heating temperature and heat speed according to the size of the pipe and bending radius. Also pay attention to protect the surface of the tube to avoid scratches and oxidation.

Maintenance and repair of hot bending machinery and equipment: hot bending machinery and equipment need to be regularly maintained and repaired to ensure the normal operation and life of the equipment. Maintenance work includes cleaning equipment, adjusting parts, replacing lubricants and so on.

Hot bending process

Tube preheating: In the austenitic stainless steel tube hot bending before the need to preheat the tube to a certain temperature to improve its plasticity and reduce the possibility of deformation.

Determination of bending radius: austenitic stainless steel tube hot bending, need to determine the bending radius according to the design requirements. A smaller bending radius will lead to deformation and stress concentration of the pipe, and a larger bending radius will affect the installation of the pipe.

Selection of bending process parameters: hot bending process parameters include heating temperature, hot bending speed and cooling method, etc., need to select the appropriate parameters according to the material and size of the pipe to ensure the quality of the pipe after hot bending.