On October 25, 2005, it was learned from relevant parties that the first batch of imported shield machine components on October 24 had been delivered to Shenyang Heavy Machinery Group Co., Ltd. by Germany. Although the parts delivered this time weighed more than 20 tons and lo…

Before the gear fails, the vibration is caused by the stiffness of the gear itself. Therefore, the gear is not the same as the failure of the gear during the normal running state, and the noise and vibration of the gear can be well distinguished when the fault occurs again. Therefore, it i…

Rail vehicle intelligent maintenance system by the car Qingdao Sifang Vehicle Research Institute Co., Ltd. (in the car Sifang) developed. The system consists of two parts: the control center and the image acquisition robot. The control center collects the collected images and dis…

On June 15th, 2019, the “6·15 Green Tire Safety Week” large-scale public welfare activity sponsored by China Rubber Industry Association will kick off. This event will be held in Beijing Olympic Forest Park in the form of “10km Healthy Run”. Carry out. As one o…

A noise dosimeter, also known as an integral sound level meter, is an instrument used to measure noise exposure. Adding an integral device to the ordinary noise dosimeter line is a noise dosimeter.

It measures the amount of noise exposure over time. The noise dosimeter can be …

The name of the water immersion detector is a kind of detector product used to detect whether the house leaks water. The common water immersion immersion detectors on the market mainly include photoelectric and cable type detectors, which are also divided int…