Abstract: A ferrule device of tundish nozzle for reducing inclusions in steel contains a ferrule, a ferrule base and a wire. Structure of the ferrule is circular cylinder; inner diameter of the ferrule is same to outer diameter of matched immersion nozzle. A ferrule wire hole is set on bottom of the ferrule. The ferrule is detachably connected with the top of the ferrule base. A base wire hole throughout top surface and bottom surface of the ferrule base is set on the ferrule base. The diameter of the base wire hole is same to the diameter of the ferrule wire hole. The ferrule device of the present disclosure is easy to install and change. Installing and change process and filling of refractory material of the tundish process can be carried out simultaneously. Continuous casting process is not influenced.

Abstract: A method for improving smooth running of casting of rare earth stainless steel using pulse current includes the following steps: setting corresponding initial pulse voltage, pulse current, and pulse frequency in accordance with difference of rare earth element content in molten steel; and adjusting the pulse voltage, pulse current, and pulse frequency according to position change of stopper rod until the end of continuous casting. The method can stably improve the clogging of immersion nozzle during continuous casting, the smooth running of continuous casting and production efficiency, and decrease production cost.

Abstract: A device and method for preparing a low-impurity regenerated brass alloy through step-by-step insertion of an electrode are provided. The device includes a melt heating apparatus, an electrode displacement apparatus, and a pulse current generation apparatus. The automatic electrode lifting apparatus is controlled to adjust an insertion depth of the graphite electrode plate in the metal melt, and the pulse current generation apparatus is controlled to adjust the parameters of pulse current to achieve the impurity reduction on the metal melt. The preparation of a low-impurity regenerated brass alloy involves a short production process, simple operations, low energy consumption, and high impurity removal efficiency, and is suitable for regeneration and large-scale continuous production of non-ferrous metal alloys.

Abstract: A device and method for preparing a low-impurity regenerated brass alloy through step-by-step insertion of an electrode are provided. The device includes a melt heating apparatus, an electrode displacement apparatus, and a pulse current generation apparatus. The automatic electrode lifting apparatus is controlled to adjust an insertion depth of the graphite electrode plate in the metal melt, and the pulse current generation apparatus is controlled to adjust the parameters of pulse current to achieve the impurity reduction on the metal melt. The preparation of a low-impurity regenerated brass alloy involves a short production process, simple operations, low energy consumption, and high impurity removal efficiency, and is suitable for regeneration and large-scale continuous production of non-ferrous metal alloys.

Abstract: An electrolyte includes following components of quantity shares: lithium salt 12-18 shares, linear carbonic ester 20-35 shares, cyclic carbonic ester 20-35 shares, carboxylic ester 20-50 shares and functional additive 10-15 shares.

Abstract: A ternary composite conductive adhesive includes following items: binder, solvent, conductive agent. The conductive agent includes conductive spherical node substance, conductive fiber transition substance and tubular conductive substance.