Baoshan Iron & Steel Co., Ltd.

Opple Lighting Co., Ltd.

Suzhou Opple Lighting Co., Ltd.

Lei Zheng

Guodong Xu

Chuanguo Zhang

Leilei Sun

Hui Li

Jian Ming Liu

Bo Wang

Ping Hu

Jian Liu

Xingxing Xu

Kougen Wu

Junhui Huang

Jianlin Xu

Houjun Pang

Yong Xue

Mingzhuo Bai

Haisheng Xu

Shiwei Yu

Zhuang Zuo

Mingxing Zhou

Huiqing Duan

Yong Zhang

Yan Shen

Shiqiang Xie

The present disclosure discloses a light distribution assembly and a lighting device, belonging to the technical field of lighting. The light distribution assembly includes a first lens, a second lens, a first kit, and a second kit; the first lens is disposed on the first kit, the second lens is disposed on the second kit, the second kit is connected to the first kit and is rotatable relative to the first kit to allow the second lens to be rotatable relative to the first lens, and at least one of the first lens and the second lens is a polarizing lens to change a light distribution path of the light distribution assembly.

Light distribution assembly and illumination device

Steel for coiled tubing with a low yield ratio and ultra-high strength and a preparation method thereof, wherein the chemical composition of the steel in mass percentage is: C: 0.05-0.16%, Si: 0.1-0.9%, Mn: 1.25-2.5%, P&#x2264;0.015%, S&#x2264;0.005%, Cr: 0.51-1.30%, Nb: 0.005-0.019%, V: 0.010-0.079%, Ti: 0.01-0.03%, Mo: 0.10-0.55%, Cu: 0.31-0.60%, Ni: 0.31-0.60%, Ca: 0.0010-0.0040%, Al: 0.01-0.05%, N&#x2264;0.008%, and the rest being Fe and inevitable impurity elements. The chemical composition combines the technologies of low temperature finishing rolling and low temperature coiling to obtain an MA constituent+bainite+ferrite multiphase structure. The steel has a low yield ratio and ultra-high strength with the following specific properties: yield strength&#x2265;620 MPa, tensile strength&#x2265;750 MPa, elongation&#x2265;11%, and yield ratio&#x2264;0.83, and is suitable for manufacturing coiled tubing with ultra-high strength having a grade of 110 ksi or higher.

Steel for coiled tubing with low yield ratio and ultra-high strength and preparation method thereof

Disclosed is a Grade 550 MPa high temperature-resistant pipeline steel, the chemical elements, in mass percentage, being: 0.061%&#x2264;C&#x2264;0.120%, 1.70%&#x2264;Mn&#x2264;2.20%, 0.15%&#x2264;Mo&#x2264;0.39%, 0.15%&#x2264;Cu&#x2264;0.30%, 0.15%&#x2264;Ni&#x2264;0.50%, 0.035%&#x2264;Nb&#x2264;0.080%, 0.005%&#x2264;V&#x2264;0.054%, 0.005%&#x2264;Ti&#x2264;0.030%, 0.015%&#x2264;Al&#x2264;0.040%, 0.005%&#x2264;Ca&#x2264;0.035%, and the balance being Fe and unavoidable impurities. Also disclosed is a manufacturing method of the Grade 550 MPa high temperature-resistant pipeline steel, comprising the steps of: smelting, casting, slab heating, rough rolling, finish rolling, controlled cooling, and air cooling to room temperature. The pipeline steel has an excellent mechanical property under a high temperature.

Grade 550MPA high-temperature resistant pipeline steel and method of manufacturing same

A X80 pipeline steel with good strain-aging performance comprises (wt. %): C: 0.02-0.05%; Mn: 1.30-1.70%; Ni: 0.35-0.60%: Ti: 0.005-0.020%; Nb: 0.06-0.09%; Si: 0.10-0.30%; Al: 0.01-0.04%; N&#x2264;0.008%; P&#x2264;0.012%; S&#x2264;0.006%; Ca: 0.001-0.003%, and balance iron and unavoidable impurities.

X80 pipeline steel with good strain-aging performance, pipeline tube and method for producing same

The present disclosure provides a dimming device and a driving and dimming device, where the dimming device includes a communication unit, a microcontrol unit, a power supply unit and a connector, and the power supply unit is input with a mains voltage and outputs a voltage required by the communication unit, the communication unit receives a control signal obtained by wired or wireless transmission and outputs the control signal to the microcontrol unit, the microcontrol unit outputs a dimming signal for dimming, and the connector is detachably connected with a connector of another device.

Dimming device and driving and dimming device having a detachable connector for connecting to a connector of another device

Growing community of inventors

Shanghai, China

Lei Zheng