The need for industrial restructuring. At present, the self-sufficiency level of my country's stainless steel fine strip steel is about 45%. High-strength fine strip steel needs to spend a lot of foreign exchange to import from abroad. Vigorously developing my country's high-strength fine strip steel is the top priority in the structural adjustment of steel products. , Due to the extremely thin thickness and high precision of the product, and special requirements for hardness, and the small amount of use, the stainless steel plant for mass production does not have the production capacity of fine steel strips.

"Stainless steel fine steel strip" is not an ordinary cold-rolled sheet, nor is it to change the rolling material. It has high requirements for materials, equipment, technology, personnel, and handling. It is quite special and has substantial differences. Cold rolling relies on the added value of scale, the reformed rolling material relies on the added value of processing, and the fine steel strip relies on the added value of technology.

A high-alloy steel that can resist corrosion in the air or in chemically corrosive media. It has a beautiful appearance and good corrosion resistance. It does not need to be treated by plating and other surface treatments, but it exerts its inherent appearance functions. It is used in various steels. One kind, generally called stainless steel. The quenching operation is to first heat the strip steel in a straight-through furnace, generally at a heating temperature of 1050～1150℃, so that the carbides in the steel are fully dissolved and a uniform austenite arrangement is obtained. The feasibility of the development of fine strip steel The acceleration of domestic economic restructuring has made the development of the high-tech industry and the information industry adhere to a certain growth rate or even faster. These occupations have a pulling effect on the demand for fine strip steel, increasing the demand for fine strip steel to a certain extent the amount.

Regarding the modified products brought out, there are also three or six categories. Strictly speaking, the modified products should be better and lower in price. However, there are still differences in the sales policies and pricing of the modified products of various steel mills and cannot be simplified. Calculated evenly. In many factories, the thickness of 0.3~1mm is also called "fine steel strip".

For example, the thickness of domestic TISCO's "fine strip steel" is between 0.02 and 0.5 mm, while Nisshin Steel calls the thickness range between 0.02 and 0.25 mm as "stainless steel foil". The distinction of thickness is related to the production capacity of the manufacturer's equipment and product positioning. , Difficulties of stainless steel fine casting processing: microscopic defects (slag inclusions often appear in the form of interpasses, and sometimes interlayer slag inclusions. The main reason for the formation of slag inclusions in the weld bead is the poor technical function of the flux, which makes the deposited metal The wet angle on both sides of the weld bead is too steep, which constitutes a poor edge fusion. When a weld bead is built-up, it is easy to cause inter-pass slag inclusion. In addition, unqualified welding standards, welding positions, etc. are also easy to cause this shortcoming., The feasibility of the development of fine strip steel The domestic acceleration of economic restructuring has made the development of high-tech industries and the information industry adhere to a certain growth rate or even accelerate. These occupations have a pulling effect on the demand for fine strip steel, and to a certain extent, increase the demand for fine strip steel. the amount.

The corrosion resistance of austenitic stainless steel comes from the chromium oxide protective layer formed on the surface of the metal. If the material is heated to a high temperature of 450°C to 900°C, the structure of the material will change, and chromium carbide will be formed along the edge of the crystal. , Fine stainless steel belt, thickness 0.08mm～2.5mm, width 1.3mm～1250mm, spring steel belt* hardness can reach HV590～610, products are widely used in air conditioning, solar energy, electronics, clockwork, pen holders, hose clamps, cable ties , Piston rings, stamping parts, terminal blocks, car general hardware accessories and other product quality processing system certification. , The development of fine strip steel can effectively promote the development of high-tech industries such as electronic information, fine machinery and instruments, aerospace and aviation, actively promote the integration of informatization and industrialization, and accelerate economic structure adjustment and increase method changes. , High-end professional fine strip products: aerospace scope; petrochemical industry; IT occupation; medical equipment; instrumentation.