Cutting equipment for steel strips (1), the cutting equipment including: a cutting device (4) configured to laser cut a vicinity of a joint portion (2) in which a rear end of a preceding steel strip and a front end of a succeeding steel strip are joined that has been detected by a joint portion detection device (5), and a vicinity of a defective portion of the steel strips that has been detected by a defect detection device (8); and a control unit (9), wherein the control unit includes a plurality of modes, including a first cut mode that causes laser cutting in the vicinity of the joint portion, and a second cut mode that causes laser cutting in the vicinity of the defective portion, and the control unit operates the cutting device in accordance with one cut mode in the plurality of modes.

Provided are cutting equipment for steel strips and a cold rolling line that allow for accurate laser cutting of joint portions between continuous steel strips. The cutting equipment for steel strips (1) includes: a joint portion detection device (5) configured to detect a joint portion (2) in which a rear end of a preceding steel strip and a front end of a succeeding steel strip are joined; an end portion detection device (6) configured to detect end portions of the steel strips; a vibration prevention device (7) configured to prevent vibration of the steel strips; and a cutting device (4) configured to laser cut a vicinity of the joint portion, wherein the end portion detection device and the vibration prevention device are provided on separate stands from each other.

A nesting and shear cutting preprocessing method for a defective plate, comprising the following steps: acquiring plate information of a plate, wherein the plate information includes defect information and plate dimension information; making an electronic defect map according to the defect information and the plate dimension information, and partitioning out a region available for nesting and shear cutting; and partitioning the plate to obtain small plates according to the region available for nesting and shear cutting. A nesting and shear cutting layout method for a defective plate, a nesting and shear cutting production optimization method for a defective plate, and a system, a computing device, a storage medium therefor. The preprocessing method and the system can reduce the scrap rate of plate processing.

A method and a device that bridge an interruption in production in a combined casting-rolling installation to provide a combined casting-rolling installation for producing a hot-rolled finished strip, in which, in the case of an interruption, also thick precursor material having a thickness of >30 mm can be separated in a rapid and reliable manner from the next precursor material.

Generally described, one or more aspects of the present disclosure relate to systems, methods, and devices for trimming and peeling electrode films. The system can be integrated into a calender rolling system and can create multi-lane films with clean edge quality for lamination. The system can include a trimming device including a cutting device, and a material removing device positioned downstream from the cutting device, the material removing device including a scraper element, a support element positioned upstream from the scraper element, and a vacuum element.

A method of manufacturing a thin amorphous alloy strip with notches, the method comprising forming notches on a smooth amorphous alloy strip using a cutting roller in a notching operation, wherein the cutting roller has a cylindrical body, the body is provided on the surface with at least one spirally extending cutting edge; and during the notching operation, the cutting roller is pressed against the amorphous alloy strip and rotated, wherein an incident angle of the cutting edge is in the range of 20-30; a notching pressure is in the range of 5-8 g; and an extension direction of any point on the cutting edge has an angle in the range of 20-60 with a travel direction of the amorphous alloy strip.