Alloyed Steel Bloom/Billet Manufactured by Blast Furnace

1.Structure of Alloyed Steel Bloom/Billet Manufactured by Blast Furnace

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 Bloom/Billet Manufactured by Blast Furnace.

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 Bloom/Billet Manufactured by Blast Furnace Images

4. Alloyed Steel Bloom/Billet Manufactured by Blast Furnace Specification

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 Bloom/Billet Manufactured by Blast Furnace

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.

②What are the slab quality problem? 

(1) of slab of purity (inclusion quantity, shape, distribution, etc.);(2) the surface of the casting defects (cracks, slag inclusion, porosity, etc.); (3) slab internal defects (cracks, segregation, inclusion, porosity and shrinkage cavity, etc.). Slab of purity depends mainly on molten steel into mold before processing, namely before pouring molten steel make "clean";Cast to the control process at the same time, don't let the inclusions with steel downward. Slab of purity control starts () electric furnace and converter smelting to refining outside the furnace, tundish metallurgy, protective casting and electromagnetic stirring process control of the whole process.

What are the types of non-metallic inclusions in continuous casting billet? The non-metallic inclusions in continuous casting billet, according to the generated methods can be divided into endogenous inclusions and exotic inclusions. Endogenous inclusions, mainly is pointed out that steel, ferroalloy products and pouring molten steel and air secondary oxidation in the process of product, such as aluminum oxide. Foreign inclusions, mainly to the inclusion of smelting and casting process, such as the erosion of ladle, tundish refractory, involved in the package of slag and protecting slag, shuikou washed residue, etc. The final solidification in continuous casting billet size, quantity and distribution of inclusions and is affected by the purity of molten steel in tundish, the impact of the mold injection flow depth and the movement state of the flow injection etc.For curved continuous caster, from intrados 1/4 thickness in inclusions have gathered phenomenon, this is a serious defect.Electromagnetic stirring can control the movement of molten steel in mould, and exclusion of inclusions, therefore we have to be serious study of the production of impurity and motion law.

③What is the advantage of the continue Casting steel billet comparing to the die casting steel billet?

Compared with die casting, continuous casting has the advantages of: 1. To simplify the Steel billet The production process 2. Improve the metal yield 3. Improve the quality of the billet 4. Reduces the steel worker's labor intensity 5. Save energy and reduce consumption

Steel billet is produced by the method of through three processes: It is through the steelmaking system of continuous casting equipment, directly by the molten steel pouring into billet; The second is the steelmaking system in the production of steel ingot casting billet through system of steel rolling rolling equipment or processing of steel semi-finished products; Three is the steelmaking system production of steel ingot by forging the semi-finished product processing equipment.