Xi' an Sinofuse Electric Co., Ltd.

Shaanxi University of Science and Technology

Xin Wang

Xiaoguang Shi

Xibin Ge

Shaobo Duan

Wei Wang

Jianfeng Huang

Liyun Cao

Rongrong Chen

Jiayin Li

Jie Fei

Haibo Ouyang

Wei Hao

Zhanwei Xu

Chunyan Yao

Cuiyan Li

Provided is an excitation protection device acting step by step with a single excitation source, including a shell body, an excitation source, impact devices and a conductor, wherein at least two impact devices respectively located in different cavities are provided in the shell body, one side of the impact device is provided with one excitation source, and the impact device and the excitation source are respectively in sealed contact with the cavities where the impact device and the excitation source are located; and the excitation source drives the impact devices to displace simultaneously or successively, and at least one of the impact devices breaks the conductor during the displacement process.

Excitation protection device acting step by step with single excitation source

The present disclosure provides an excitation fuse with a conductor and a fusant being sequentially broken, the excitation fuse comprising a housing and a cavity in the housing, wherein at least one conductor is provided to be inserted in the housing and the cavity and has two ends connected with an external circuit; at least one fusant is provided in parallel on the conductor; an excitation device and a breaking device are mounted in the cavity at one side of the conductor; the excitation device may receive an external excitation signal to act to drive the breaking device to sequentially form at least one fracture on the conductor and the fusant respectively; and at least one fracture on the conductor is connected in parallel with the fusant.

Excitation fuse with a conductor and a fusant being sequentially broken

Provided is a method for the preparation of a porous hollow shell WO/WSnanomaterial, comprising: (1) adding a hexavalent tungsten salt to a sol A comprising mesocarbon microbeads, and stirring to obtain a sol B; (2) drying and grinding the sol B, and then heating a resulting powder at 200-500&#xb0; C. for 0.5-2 hours to obtain a porous hollow shell WOnanocrystalline material; (3) placing the porous hollow shell WOnanocrystalline material obtained by Step 2 and a sulfur powder separately in a vacuum furnace, controlling such that a degree of vacuum is &#x2212;0.01 to &#x2212;0.1 MPa and a temperature is 200-500&#xb0; C., and reacting for 0.5-3 hours to obtain a WO/WSporous hollow shell nanocrystalline material. Also provided is a porous hollow shell WO/WSnanocrystalline material obtained by the method.

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Shaanxi, China

Xin Wang