Baoshan Iron & Steel Co., Ltd.

Shenzhen Smoore Technology Limited

Sanbing Ren

Shanqing Li

Yan Yu

Hongtao Sun

Yuan Fang

Guilin Lei

Junfei Fan

Fei Xiong

Xiaoli Jin

Chunwei Zhang

Zhi Luo

Yiru Wang

Xianglong Zeng

Binbin Zhu

The present invention discloses a vacuum coating device, comprising: a crucible; an induction heater provided on the periphery of the crucible; a flow distribution box connected to the top of said crucible via a steam pipe. Wherein said flow distribution box is provided inside with a horizontal pressure stabilizing plate, said flow distribution box is connected on the top with a nozzle, said steam pipe is provided with a pressure regulating valve, and said pressure stabilizing plate has a multi-hole structure. The lower surface of said pressure stabilizing plate is connected to a horizontal flow suppression plate, and a space is formed between the side of said flow suppression plate and the inner wall of said flow distribution box. A jet moderating zone is formed between the joint where said flow distribution box and said steam pipe are connected and the lower surface of said pressure stabilizing plate, and a jet accelerating zone is formed between the upper surface of said pressure stabilizing plate and the joint where said flow distribution box and said nozzle are connected. When the high-temperature steam reaches the low-temperature steel plate, a uniform coating can be formed on the steel plate surface.

Vacuum coating device

Provided is a vacuum coating device, comprising a crucible (), an induction heater () arranged on the outer side of the crucible (); a flow distribution box connected to the top of the crucible () through a steam pipeline (); a pressure regulating valve () and a diverter valve () sequentially arranged in a direction in which the steam pipeline () is in communication with the flow distribution box; a horizontal pressure stabilizing plate () arranged in the flow distribution box, a plurality of sub-nozzles () connected to the top of the flow distribution box; wherein a plurality of air flow distribution chambers are arranged in the diverter valve (); a ratio of a total area of the air flow distribution chambers (S) to an area of the steam pipeline () in the radial direction (S) is greater than or equal to 0.1, i.e.: S/S≥0.1. According to the device, a uniform spray flow can be formed, a uniform coating () is formed on the surface of a steel plate () when high temperature steam is in contact with a low temperature steel plate, the spray flow formed by the sub-nozzles () arranged at the rear portion continuously covers the deposited metal layer that has been formed, so as to achieve efficient coating of strip steel under vacuum conditions.

A method for continuous thin strip casting comprises: introducing molten steel through a long nozzle into a tundish from a ladle, the tundish is one strand tundish, and the molten steel flows below a weir, then passes a first dam and enters a channel with an induction heating device, and the heated molten steel then flows out from an outlet at the other side of the tundish to a nozzle also with an induction heating device for casting. The distances between the weirs of the tundish and the channel have optimal distance ranges. The present invention can improve the casting stability and the quality of the casting strip.

Method and device for continuous thin strip casting

Growing community of inventors

Shanghai, China

Sanbing Ren