Shandong China Coal Import & Export Co., Ltd.

Mine wagon are commonly used mechanical equipment in many mining companies. In the process of driving, controlling or overhauling mine wagon, there are some details that we need to pay attention to. E

In daily life, we will find that the steel rails are kept smooth at all times, and professionals are also equipped to maintain the steel rails to keep them smooth. Then for such a smooth steel rails,

At first, it is emphasized that the premise for the dowty retarder to reach the sealing life index must be under the "normal use conditions

In the process of vehicle pulling out, when the speed is too fast or the locomotive suddenly accelerates and decelerates, the instantaneous impact force of the wheel on the dowty retarder increases si

One of the faults is that they cannot be stepped down no matter how hard they are used, and they cannot slide freely, forming the so-called "dead dowty retarder".

Therefore, it is not required that each dowty retarder must meet The ambient temperature specified above. Therefore, the new standard cancels the requirement for ambient temperature.