69 results about "Heat injury" patented technology

A tension system optimization method for the rolling of ultra-thin strip steel in a tandem cold rolling mill, which relates to control equipment or methods specially suitable for metal rolling mills or their processed products, in particular to a comprehensive control of the rolling process of ultra-thin strips in a tandem cold rolling mill The tension system is optimized, using the existing equipment parameters and process parameter data of the control system of the cold tandem rolling mill, according to the entrance tensile stress, exit tensile stress, deformation resistance, rolling speed, strip width, entrance thickness, and exit tension of each rack. Thickness, work roll diameter, calculate the slip factor, thermal slip index, vibration coefficient, rolling force, rolling power of each stand under the current working conditions, realize the optimal control of the tension system through computer program control, and consider rolling stability , slipping, thermal slipping and vibration, while taking into account the reduction capacity, rolling efficiency, and the exit shape and tensile stress distribution of each stand, the exit shape of the final stand that characterizes the quality of the strip is significantly reduced, and the strip mass ratio The traditional method has been significantly improved.

The invention relates to a surgical skull grinding temperature online detection and controllable handheld grinding device. The surgical skull grinding temperature online detection and controllable handheld grinding device is high in control precision, and skull grinding acoustic emission signals are monitored, so that the rotational speed of a grinding wheel is adjusted, the grinding temperature is reduced in a skull grinding procedure, and heat injury to brain tissues of a patient can be effectively prevented. The surgical skull grinding temperature online detection and controllable handheld grinding device comprises a shell, the grinding wheel is mounted at the front end of the shell and is connected with a direct-current motor by a transmission, an acoustic emission sensor is arranged at a joint of the grinding wheel and the shell and is connected with a signal analysis processing module by a conducting wire, the signal analysis processing module is arranged in the shell and is respectively connected with a feedback device and a display and alarm device, and the direct-current motor is connected with a direct-current power source by the feedback device via a control switch. The signal analysis processing module receives the acoustic emission signals which are generated during skull grinding and are detected by the acoustic emission sensor, whether an overheating condition occurs or not is judged, and the rotational speed of the direct-current motor is controlled via the feedback device.