Alloyed Steel Billets Manufactured by Continue Casting

1.Structure of  Alloyed Steel Billets Manufactured by Continue Casting

Steel Billets Manufactured by Continue Casting is the raw material of all kinds of steel mill. Billet section of square, round, flat, rectangular and abnormity, etc Several, mainly related to shape of rolled products. Simple rolled section steel, choose cross section of square billet or rectangular billet. rolling The sector products such as flat steel, Angle steel, select the rectangular billet or slab. Had better profiled billet when production beams, channels, and in rolling process Lines and improve the yield. The raw material of round billet is the production of seamless tube. 

2.Main Features of  Alloyed Steel Billets Manufactured by Continue Casting.

Steel Billets Manufactured by Continue Casting section size should meet the requirements of rolling deformation and finished product quality, but also roll strength and biting condition of restrictions. General steel Billet section height H. And the roll diameter D The ratio of the ( namely H/D) Should be less than or equal to zero 0.5 . Length of steel billet by finishing temperature, Rolling time and the length of the product Or times ruler. When heated too long accident prone to bump the furnace wall of steel, too short, furnace bottom utilization rate is not high, influence the heating furnace production. For the production Choose a variety of steel and steel billet, should consider the affinities of billet, as far as possible in order to improve the productivity of the roughing mill, simplify the stock management of workshop.

      There are three shapes of the steel billets: square billet, slab, rectangular billet The Chinese billet, rectangular billet is mainly suitable for rolling hot rolled strip, building reinforced bar, Ordinary wire, high speed wire rod and various small profile. Of the slab are mainly used for rolling plate and hot coil sheet.

3.  Alloyed Steel Billets Manufactured by Continue Casting Images

4.  Alloyed Steel Billets Manufactured by Continue Casting Specification

 Steel Billets Manufactured by Continue Casting  rolled steel, after processing can be used for mechanical parts, forging parts, processing all kinds of steel, steel Q345B channel steel, wire rod is the role of the billet. Steel billet is used in the production of semi-finished products, generally cannot be used directly for the society. Steel billets and steel are strictly divided into standard, cannot decide to whether the business enterprise of the final product, and according to unified standards to perform the whole society. Typically, billet and the steel is relatively easy to distinguish, but for some steel billet, and have the same specification and same steel purposes (such as rolling tube billet), whether can be used for other industries, whether through steel processing process, whether through a finished product rolling mill processing to distinguish

Material standard The editor Range of thickness: 150-240 - mm + / - 5 mm width range: 880-1530 - mm + / - 20 mm Length: 3700-10000 - mm + / - 500 - mm Cross-sectional size: 64 * 64; 82 * 82; 98 * 98; 124 * 124; 120 * 150; 152 * 164; 152 * 170 mm Length: 9000 mm Section of tolerance: billet: 1.0 + / - 2.0-1.0 + / - 1.0 mm slab: width: + / - 2.0 mm thickness: + / - 3.0 mm The length tolerance: + / - 200 mm Section diagonal tolerance: 3.5-8.0 MM Billet section size protrusions requirements: < 1242 mm, do not allow; > = 1242 mm, < = 2 mm 1242 mm, < = 3 mm Beheading (shear) extension deformation: < 1242 mm billet: no control; The slab: < = 15 mm Surface tilt: no more than billet section 0.1 Bending: every 1 m length is not more than 10 mm The distortion: length < = 5 m, < = 11. ; The length of the < = 7.5 M, < = 5. Material % 3 sp/PS chemical composition: C Mn Si S P

5.FAQ of  Alloyed Steel Billets Manufactured by Continue Casting

We have organized several common questions for our clients，may help you sincerely： 

①How about your company？

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

②How to guarantee the quality of the products？

We have estaWhat are the types of cracks?   Casting billet surface defects is one of the important defects affect the yield and quality of continuous casting machine.According to the statistics, all kinds of defects of cracks accounted for50%.castingCrack of billet, the person that weigh can lead to leakage or scrap, light person to finishing, affect the caster productivity already so,And influenceProduct quality, increase the cost.blished the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

To analyze the causes of various cracks, the purpose is to study the effects on the crack of the electromagnetic stirring process.Although so far, the academia has not yet been approved electromagnetic stirrer for sure what is the effect of crack, however, some continuous casting experts thought that crystallizer mixer has inhibitory effect on the corner crack of slab, and we, through the study of F - EMS found mixer on the local crack of slab has obvious control action.

③What are the causes of surface longitudinal crack? 

  Of the nozzle and the mould protection slag melting performance, liquid slag layer is too thick or too thin cause unequal, crystallizer liquid slag filmSurface wave, in steelS + PContent exceeds allowable values, etc.   These reasons cause the solidification shell thickness unevenness or make local solidification shell thin easy to crack;Liquid slag layer, the liquid level fluctuation is too thinBig, longitudinal crack increased significantly;S + PExcessive content, significantly lower high temperature performance of steel and plastic, prone to the longitudinal crack.