Rolling of steel plates is the core of the entire steel rolling production process. The billet is deformed by rolling. The rolling process plays a decisive role in product quality. The quality requirements of rolled shipbuilding use GL-D hull structural steel products include the three aspects of product geometry and dimensional accuracy, internal organization and performance, and product finish. Finishing: It is the last process in the shipbuilding use GL-D hull structural steel rolling process, and it is also a more complicated process. It plays a final role in guaranteeing the quality of the product.
After extrusion, the shipbuilding use GL-D hull structural steel tube shall be removed for sizing. The sizing machine uses a cone-shaped bit to rotate into the steel embryo at high speed to drill holes to form steel pipes. The inner diameter of the steel pipe is determined by the outer diameter length of the drill bit of the sizing machine. After sizing, the steel pipe will enter the cooling tower and be cooled by water spray. After cooling, the steel pipe will be straightened. After straightening, the steel pipe is sent to the metal flaw detector (or hydraulic test) by the conveyor belt for internal flaw detection.
CCS Grade B hot rolled steel is a ordinary strength marine steel plate. Our plates and sheets thickness are supplied up to 150mm. We have stock of shipbuilding use GL-D hull structural steel, CCS Grade B hot rolled steel: 5.5*2790*10680, 27*1700*4350, 18*2000*10000, 9*2310*7060, 27*1700*4350, 45*2200*10000, 12*2000*10000, 16*2000*10000, 50*1770*7730, 14*1800*10000, 14*2000*10000, 11*1650*9000, 75*1050*9140, 40*2200*10000, 18*2000*9820, 14*2000*10000, 30*1500*6000, 75*1430*9140, 40*2000*8000, 80*1800*7000.
Our company attaches great importance to technical support and after-sales service, and has established a customer service center to provide unified technical support and service for shipbuilding use GL-D hull structural steel various engineering projects. Customer service center has a strong technical force of technical service team, composed of a customer service center manager, several shipbuilding use GL-D hull structural steel after-sales service personnel, responsible for unified acceptance and processing of local after-sales service needs.
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