On May 31, 2020, Minmetals Yingkou Medium Plate Co., Ltd. (hereinafter referred to as Minmetals Yinggang) 2# slab continuous casting machine 475mm extra thick slab realized mass production. The surface quality and internal quality of the slab meet the requirements. The casting machine is designed and manufactured by CCID. The world's largest thickness straight arc slab continuous casting machine achieved mass production, which sounded the assault of Minmetals Steel to the world's top wide and thick plate production enterprises.
In order to meet the growing market demand for extra-thick and ultra-thick steel plates in the fields of nuclear power, wind power, shipbuilding and marine engineering, and large pressure vessels, Minmetals Yinggang adheres to the development concept of "creating the world's top wide and thick plate production enterprise" and actively promotes Technology and equipment upgrades to meet the current increasing industry needs. In order to solve the situation that the company's maximum rolling force of 12,000 tons and 5000mm rolling mills put into production in 2009 did not match the extra-thick slabs and could not fully utilize the advantages of equipment, after full demonstration, Minmetals Yinggang regards ultra-wide and ultra-thick steel plates as future varieties An important direction for the expansion of specifications, it was decided to increase the thickness of the slab from 350mm to 475mm to solve the current problem of "heartlessness".
It is understood that Minmetals Yinggang 2# extra-thick large slab casting machine is straight arc type, and the production thickness of the casting machine is 335mm, 375mm and 475mm. The casting machine has complete quality control methods, including crystallizer electromagnetic stirring, secondary cooling electromagnetic stirring, secondary cooling dynamic water distribution, secondary cooling dry continuous casting, dynamic soft reduction, heavy pressure at the solidification end, and no liquid core large reduction function is reserved Among them, the single-stage pressing force of the fan-shaped section under heavy pressure at the solidification end can reach 2000 tons, which is in the world's leading level.
In the future, Minmetals Yinggang will use the trinity "gold combination" of "475mm casting machine + 5000mm wide plate rolling mill + extra thick steel plate heat treatment furnace" to meet the challenges from quality, cost, efficiency, environmental protection, variety and technology. The company will continue to promote the optimization of the variety structure, strengthen the integration and optimization of the steel rolling integration and process flow, pay attention to the summary of practical experience and secondary innovation; improve the integration of extra-thick and ultra-thick steel plate technology, and improve the physical quality Enough effort; innovate vigorously in the development of high-end steel plates to form process technologies with core competitiveness, and promote continuous progress in the production technology and equipment of China's extra-thick and ultra-thick steel plates to further maintain and enhance product competitiveness.
![475mm world's largest thickness straight arc slab continuous casting machine achieves mass productio]()