Cold-rolled products are widely used and have many processing methods, from simple bending to deep drawing. According to the processability, they can be divided into two types: formability (expansion and deep drawing) and shape. Formability refers to the ability to be processed into a certain shape. Formability refers to the size and shape obtained by removing the load after being processed into a certain shape. At the same time, the characteristic of maintaining the processed shape is called shape stability.
Timeliness. The so-called aging phenomenon refers to the phenomenon of changes in metals or alloys over time. There are quenching aging and strain aging in cold-rolled steel plates. Quenching aging occurs when it is rapidly cooled down in a certain temperature range; strain aging occurs when it is flattened and then cold processed after annealing, especially when the yield platform disappears after flattening. It can be restored after a while.
specificity. Mainly refers to enamel performance, corrosion resistance, electromagnetic properties, punching properties, etc.
Advantages Compared with hot-rolled strip steel, cold-rolled strip steel has the following points: Since the cold rolling process does not have the temperature drop and temperature unevenness in the production of hot-rolled strip steel, thin strip steel can be produced with a thickness of up to 0.001mm;
During the cold rolling process, no rusty iron scale is produced on the surface of the rolled piece, and it is pickled before rolling, so the surface quality of the product is good, and various special surfaces can be given to the strip according to requirements, such as rough surface, suede surface or polished surface, etc.; Cold-rolled strip steel can meet the mechanical property requirements of the width through a certain degree of cold rolling deformation and appropriate coordination with simple heat treatment. However, the blank used for cold-rolled strip steel is supplied by hot rolling, so its development is affected by hot rolling. Only by continuously improving the quality level of hot-rolled coils, including surface quality, structural properties, thickness tolerance and flat shape Degree and so on, can the cold-rolled strip steel be developed well.
Cold rolled plate: SPCC, SPCD, SPCE, SPCEN, BLC, BLD, BLC-JD2, BLC-JD3, DC01, DC03, DC04, DC05, DC06, ST14, ST15, ST16, ST17, ST280, BUSD, BUFD, BSUFD, APFC340, APFC390, CR2, CR3, CR300, SAE1010, SAE1008, SYHS, B220IS, SP122BQ, B280VK, B340LA, B410LA, B500LA, H260LA, HC270LA, H360LA, ZSTE340, ZSTE380, ZSTE420, HC260LA, HC30 0LA HC380LA HC420LA HC460LA HC500LA HC550LA HC600LA HC700LA HC800LA
Dual phase steel cold rolled plate B240/390DP, HC290/490DP, CR290/490DP, CR290Y490T, HC250/450DP B340/590DP, B400/780DP, HC420/780DP HC500/780DP BR440/590HE, BR390/540HE, HC1350/ 1700MS, HC1000 /1470QP B280VK, BTC1, BCK-1, BAK-1, B170P1, B180P1, B180P2, B220P2, B220IS, B210P1, B250P1, B140H1, B180H1, B180H2, GM6409MCR2, JSC270F, B450NQ, B460 NQ, B500NQ, B800NQ B485NL, SP221P, SPC270C , SPC270D, SPC40, H140, ST37-2G, ST37-3G, ST44-2G, ST44-3G, ST52-3G, ST55-3G, JSH270E, JSH770W, SP221P, JSC440W, B240ZK, JSC270F, BIF340, SP11, SP11 52-440bq, BMCP84 , DP600, BRC3, BRC1, HR1, HR2, HR340, ST12Q1, WIF340, WH180Y, LT, WH260LA, WH380LA, WH300LA, GQ320, WSB17C, WHT500DP, RP154-980B, 08Al
