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Steel Billet/Bloom Made by Continue Casting Blast Furnace
1.Structure of Steel Billet/Bloom Made by Continue Casting Blast Furnace
Steel Billet/Bloom Made by Continue Casting Blast Furnace 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 Steel Billet/Bloom Made by Continue Casting Blast Furnace.
Steel Billet/Bloom Made by Continue Casting Blast Furnace 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. Steel Billet/Bloom Made by Continue Casting Blast FurnaceImages
4. Steel Billet/Bloom Made by Continue Casting Blast FurnaceSpecification
Steel Billet/Bloom Made by Continue Casting Blast FurnaceMaterial 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 Steel Billet/Bloom Made by Continue Casting 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.
②How to guarantee the quality of the products？
We have established 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.
③How do you determine the billet section size? Determination of billet section size in addition to considering the deformation of rolled piece to have enough quantity to meet the finished productThe quality requirements, but also should consider to roll strength and rolling bite into the limitations. The deformation size has a great influence on the product performance.Can make the metal internal organization and deformationPerformance can not meet the quality requirements.Such as high speed steel must have enough deformation,The carbide networkTo be broken or heavy rail and seamlessSteel pipeBy the total elongation coefficient of steel ingot to the finished product usually must alsoGuarantee up to50). However, in the roll diameter and reduction given conditions, if the blank section size is too big, not only canCan occur due to deformation of impervious surface deformation of rolled piece,But also roll breakage happens,biteEntering the rolled piece difficult, etc., generally billet height and roll diameter has the following relationship: The H/DOr less0.49 (4 to 5) Type in theH.- height of billet,mm; D- work roll diameter,mm. type4 to 5The data is given from the guarantee roll blank section strength and bite conditions decisionThe size of the important parameters. Ingot after the blooming mill rolling into or through forging press forging into different specifications of the billet,Are all kinds of finished product rolling millThe main raw material.Cross section shape of the billet (as shown in figure4-3) there are square, rectangular and circularAnd other shapes (alien). There is a wide variety of billet section shape is the root cause of steel varieties, specifications range is very wide,Profile is varied,And with the same cross section shape of all varieties of steel billet production isNot possible.
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