Explanation of Stainless Steel Plate Processing Technology

Q1: What are the common processing technologies of stainless steel plates?

A1: Common processing technologies include cutting (shearing, plasma cutting, laser cutting), bending, stamping, welding, polishing, pickling and passivation, etc. Each technology has its own characteristics and is suitable for different processing requirements and product types.

Q2: What is the difference between laser cutting and plasma cutting of stainless steel plates?

A2: Laser cutting has high precision (error ≤0.1mm), smooth cutting surface, and is suitable for thin plates (≤20mm) and complex-shaped workpieces; plasma cutting has high cutting speed, can cut thick plates (up to 100mm), but the precision is relatively low, and the cutting surface has burrs, which need secondary processing.

Q3: What should be paid attention to when bending stainless steel plates?

A3: 1. Choose the appropriate bending radius-too small a radius will cause cracks on the bending surface; 2. Preheat the plate if necessary (especially for thick plates) to improve ductility; 3. Use a bending die with a smooth surface to avoid scratching the plate; 4. After bending, perform stress relief heat treatment if necessary to reduce internal stress.

Q4: What are the common welding methods for stainless steel plates?

A4: Common welding methods include TIG welding (argon arc welding), MIG welding (inert gas shielded welding), and resistance welding. TIG welding has good welding quality, beautiful weld seam, suitable for thin plates and high-quality requirements; MIG welding has high efficiency, suitable for thick plates and mass production; resistance welding is suitable for sheet metal lap welding.

Q5: What is the purpose of pickling and passivation of stainless steel plates?

A5: Pickling is to remove oxides, rust, and other impurities on the surface of the plate; passivation is to form a dense oxide film on the surface, which enhances the corrosion resistance of stainless steel. These two processes are usually carried out together to improve the surface quality and service life of the plate.