3results 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.

The present invention discloses a processing method for continuous billet opening of large square billets, comprising: heating large square billet billets; descaling the surface of the heated billet with high-pressure water; opening the descaled billet by continuous rolling in 9 passes with alternating vertical and horizontal positions to obtain an intermediate billet; and at the same time, the parameters of the rolling pass in the 9-pass continuous rolling opening are disclosed. The present invention also discloses the intermediate billet obtained by the above processing method. The present invention improves the uniformity of the deformation of the corners of the large square billet by optimizing the billet opening rolling pass and reasonably matching the pass parameters, thereby preventing the excessive deformation of individual passes; at the same time, the heating temperature and the water pressure during descaling are controlled to avoid excessive temperature drop at the corners of the billet, improve the deformation characteristics of the corners, thereby reducing the generation of rolling cracks at the corners of the large square billet, and significantly reducing the grinding ratio of the intermediate billet, and even achieving no grinding, which effectively reduces the production cost and improves the yield rate of large square billets; the present invention has a simple process and can be industrialized after the parameters are limited.

The invention discloses a single-stand tension control method for aluminum products. The method comprises the following steps: S1, acquiring historical rolling data of different aluminum products; s2, acquiring unit tension adjusting quantities of different aluminum products according to the types of the aluminum products; s3, establishing a single-stand tension model; and S4, single-stand tension is calculated according to the specification of the aluminum product and the single-stand tension model, and the aluminum product is rolled according to the single-stand tension. The tension is controlled when the aluminum product is rolled, so that the rolling process is carried out stably, the yield of a unit is improved, the strip breakage condition is reduced, and the stability of the quality of the aluminum product is ensured.