Abstract: The present disclosure discloses a smokeless frying, baking machine, control method thereof. The machine comprises lower shell, handle, upper shell, fan component, angle detection component, rotating speed detection component and controller, handle is rotatably mounted on lower shell, upper shell is rotatably mounted on handle through floating component, upper shell is rotatable back and forth to enclose baking trays to form cooking cavity, upper shell is located in unfolding tray; fan component for sucking oil smoke, angle detection component is to detect angle change between handle and upper shell; rotating speed detection component is to detect actual rotating speed of fan component, controller is electrically connected with angle detection, rotating speed detection and fan component. The fan component is regulated according to the size of flying and baking cavity, cooking duration of current cooking stage is compensated according to speed of fan component to ensure kitchen ventilator and cooking effect.

Abstract: A method for preparing a high-performance tantalum target, a high-performance target prepared by the method, and a use of the high-performance target. The method for preparing the high-performance tantalum target comprises: firstly, preparing a tantalum ingot into a forging blank by a method of cold forging in conjunction with hot forging; then, rolling the forging blank by a hot rolling method; and finally, performing leveling, and performing discharging, milling and surface treatment according to a size of a finished product, so as to obtain the tantalum target. The tantalum target prepared by the method has uniform crystallization, with a grain size between 50 ?m and 120 ?m. A texture component where a texture (110) dominants in the thickness direction of the target is obtained. A total proportion of three textures (111), (110) and (100) is between 40% and 50%, ensuring a consistent sputtering rate of the tantalum target during use.