The research on the processing performance of S355JR steel plate mainly involves the following contents:
1. Cutting performance: including cutting force, surface roughness and processing efficiency of drilling, milling, turning and other processing methods.
2. Formability: Including the plastic deformation behavior and stress distribution law of S355JR steel plate during cold bending, hot bending, stretching and other processing processes.
3. Welding performance: including the welding performance of S355JR steel plate and other materials, the influence of different welding methods on its performance, and the microstructure and chemical composition of the welding area.
4. Microstructure and performance after processing: including the influence of processing on the microstructure and performance of S355JR steel plate, such as hardness, tensile strength, yield strength, elongation, impact toughness, etc.
Understanding the processing performance of S355JR steel plate is helpful to determine the suitable processing technology and optimize processing parameters, so as to improve production efficiency and product quality. In addition, in practical applications, it is also necessary to pay attention to safety issues and environmental protection requirements during processing.
S355JR steel plate is a commonly used non-alloy structural steel plate with the following properties:
1. Mechanical properties: The tensile strength of S355JR steel plate is 470-630 MPa, the yield strength is 355 MPa, and the elongation is about 22%. In addition, its impact toughness is high, and the impact toughness at 20 ° C is greater than 27 J.
2. Corrosion resistance: S355JR steel plate has good corrosion resistance and can be used in harsh environments such as humidity and rain.
3. Processing performance: S355JR steel plate is easy to process and form, and can be processed and connected by cutting, welding, drilling, riveting and other methods.
4. Wear resistance: S355JR steel plate has high surface hardness and good wear resistance, and has a good service life in heavy-load and high-friction occasions.
In summary, S355JR steel plate has excellent mechanical properties, corrosion resistance, wear resistance and processing performance, and is widely used in construction, bridges, transmission towers, ships, machinery manufacturing and other fields.
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