Patent ID: 9498822
Filing Date: 2016-11-22
CPC Classification: B22D

Claim Text:
1. Continuous casting equipment for a flow of liquid metal from a tundish into a mould, the equipment comprising: a vertical duct disposed upstream of the mould with respect to the direction of travel of the liquid metal, the duct including from upstream to downstream a refractory ring, a copper tube with an internal diameter D and a submerged entry nozzle; and a dome disposed inside the refractory ring and including a sloped upper part, the sloped upper part being defined so as to deflect the liquid metal coming from the tundish towards inner walls of the vertical duct; the diameter D of the copper tube ranging between a minimum diameter equal to Q/3.75 and a maximum diameter equal to Q/1.25, where Q is a nominal liquid metal flow rate of the equipment and is between 200 and 800 kg/min and D is the diameter expressed in mm, a slope α of the sloped upper part of the dome ranges from 25 to 15°, the sloped upper part of the dome including at least one support arm with a fixing part to secure the dome to the refractory ring, the fixing part having a width C ranging from 10 to 60 mm, the at least one support arm having an additional part extending from the fixing part along a lateral side of the dome, the additional part being designed to direct the flow of liquid metal around and below the at least one support arm.