Q:What are the raw materials and production processes of steel?

Steel is an important material for national construction and the realization of the four modernization indispensable, its wide application, wide variety, according to the different steel profile is generally divided into sections and plates, pipes and metal products four categories, in order to facilitate the organization of steel production, supply management and order management, and divided into heavy rail, light rail, large steel, and steel, small steel, steel cold-formed steel, high-quality steel, wire rod, steel plate, steel sheet, electrical silicon steel sheet, strip steel, seamless steel pipe, welded steel pipe, steel, metal products and other varieties.

Q:What are the standards for cold rolling and hot rolling of stainless steel? What's the difference?

The free torsion rigidity of hot rolled steel is higher than that of cold rolled steel, so the torsion resistance of hot rolled steel is better than that of cold rolled steel.

Q:What's the difference between a cold plate and a hot plate?

Hair straightenerrollhead, tail tongue shapeand thefishtail shape, thickness, width of poor accuracy, edgehaswavy, folding, tower and other defects. The coil weight is heavy, and the inner diameter of the steel coil is 760mm. (general management industry likes to use. Thestraightthroughcutting) cutting head, tail cutting, trimming and multipass straightening and leveling finishing line processing, cutting board or heavy volume, which becomes: hot rolled steel plate and flat steel coils, slittingstripand other products. Hot finishing rolling by pickling descaling and oil is made by pickling hot-rolled coils. This product has the tendency to replace the cold rolled plate locally, the price is moderate, and is well liked by the customers.

Q:Stainless steel composite process

Rolling composite method is a method of producing metal stainless steel composite plate by using pressure process. There are two kinds of cold rolling composite and hot rolling composite. The basic principle is the need of two kinds of metal compound in certain proportion and requirements into the rolling mill, rolling mill in great pressure, or with thermal effect by combining the two kinds of metallic composite plate occurred in the whole cross section of plastic deformation, prompting to composite surface deformation, clean and activation. Along with the formation of planar metallurgical bonding. The basic requirement of rolling compound is the rolling equipment with great pressure and the professional technology of producing composite board. The stainless steel composite plate made by this method has the following advantages: (1) it can enlarge the dimension (length and width) of the composite panel. (2) the production cost is low, and the products are competitive in the market. (3) from raw materials to finished products can be continuously produced, suitable for mass production. (4) it is easy to set up a production line with higher automation. (5) the composite material is not easy to be contaminated by the base material, the combination property is good, and the product quality is stable.

Q:What's the difference between stainless steel strip 304 hot rolling and cold rolling?

The production process is different. The hot rolled plate is usually medium thick plate. The slab is heated to be rolled to thickness and then pickled.

Q:How to recognize the raw plate in the steel plate?

Steel plate called "cooked", probably "cold plate" and "hot plate" points, cold plate is cold-rolled steel short.

Q:What kind of steel is Q2351?

Q235 ordinary carbon structural steel, also known as A3 plate.The common carbon structural steel Pu plate is a kind of steel material.

Q:Stamping process classification

Deep drawing: drawing is also called drawing or rolling. It is the punching process of hollow parts made of flat blank made by blanking. The drawing process can be used to make cylindrical, stepped, tapered, spherical, box shaped and other irregularly shaped thin-walled parts. In addition to other stamping processes, parts with extremely complex shapes can be made. In stamping production, there are many kinds of drawing parts. Because of its different geometry characteristics, the location of deformation zone, the nature of deformation, the distribution of deformation and the stress state and distribution law of each part of the blank have considerable or even essential differences. Therefore, the process parameters, the number of processes and the order of determination methods and die design principles and methods are not the same. According to the characteristics of deformation mechanics, all kinds of drawing parts can be divided into four types: straight wall revolving body (cylindrical part), straight wall non rotating body (box shape), curved surface revolving body (curved surface shape part) and curved surface non revolving body.

Q:What is a metal layered composite?

Large plastic deformation methodLarge plastic deformation refers to the pressure of rolling mill under the powerful, or heat to combine, to be two metal compound within the metal composite on the surface of the plastic deformation, rupture, and metallurgical solid planar formation in the diffusion of the subsequent heat treatment in combination.The large plastic deformation is divided into two kinds: rolling, compounding and extrusion.