Beijing Xiaomi Mobile Software Co., Ltd.

University of Science and Technology Beijing

Beijing Playdo Outdoor Product Co., Ltd.

Hbzx High Tech Co., Ltd.

Xuanhua Iron and Steel Group Co., Ltd.

Jinlong Wang

Xin Li

Rong Zhu

Hongbin Wang

Guangsheng Wei

Yongqiang Yang

Jihong Liu

Jianzhong Wang

Minghai Zhang

Yunxiang Zhao

Huan Chang

Ceng Li

Jianping Jia

The application provides a method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma, including: using a mixture of hydrogen rich gas and argon gas to generate hydrogen plasma for denitrification of molten steel during at least one of arc furnace smelting, ladle refining, VOD refining, and RH refining. The method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma provided in the application can effectively remove nitrogen from the molten steel by spraying a mixture of argon gas and hydrogen rich gas into the molten steel through a hollow electrode and plasma torch, reducing electrode consumption and electricity consumption per ton steel, and also reducing arc radiation heat loss, improving heating rate, thereby shortening smelting time and reducing production costs.

Method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma

The present invention provides a three-folding inflatable car roof tent and a storage device thereof. The three-folding inflatable car roof tent includes a tent main body, composite slide rails, a three-folding bed frame and the a storage device; the three-folding bed frame is fixedly installed above a base frame; the tent main body is detachably fixed on the three-folding bed frame; the storage device is of a shell structure that is telescopically adjusted in size; the lower side border of the storage device is in sliding connection with the border of the base frame; and the three-folding bed frame may be stored by the sliding storage device after being folded. The three-folding inflatable car roof tent is relatively light in overall weight, firm in structure and convenient to support and store.

Three-folding inflatable car roof tent and storage device thereof

The disclosure relates to a ceramic shell, a mobile terminal and a method for manufacturing the ceramic shell. The ceramic shell includes a multi-layer ceramic blank sheet including a plurality of alternately overlapped ceramic blank sheets having at least one white ceramic blank sheet overlapped with at least one color ceramic blank sheet, wherein two of the plurality of alternately overlapped ceramic blank sheets on an outermost side of the multi-layer ceramic blank sheet are both white ceramic blank sheets.

Ceramic shell, mobile terminal and method for manufacturing ceramic shell

Growing community of inventors

Beijing, China

Jinlong Wang