1results about How to "Increase material rate" patented technology

The solidification weld line is a comprehensive manifestation of the casting and rolling process. Addressing the "Ɔ"-shaped phenomenon of the solidification weld line in traditional casting and rolling processes, which leads to edge cracking and low yield in conventional cast and rolled sheets, this invention discloses a special electromagnetic casting roll for magnesium alloy casting and rolling. The roll includes a roll core, a roll sleeve, and end caps. A coil is uniformly wound between each water channel on the roll core, and a coil is uniformly wound inside the roll sleeve. The end caps are made of composite ceramic material, and an insulating gasket is placed between the end caps and the coils to ensure good insulation. A pre-reserved groove on the end caps is used to adjust the energization of the coils on the roll core. The annular coil is connected to a brush to ensure smooth external power supply to the roll core and roll sleeve. The end caps are used to fix the roll core and roll sleeve. This invention can directionally and quantitatively improve the morphology of the solidification weld line and control the temperature of the casting and rolling zone by adjusting the parameters of the pulse current and the casting and rolling process parameters. This effectively reduces segregation, refines grains, and homogenizes the microstructure in cast and rolled strips, thereby improving the yield and product performance of magnesium alloy cast and rolled strips.