Vibration and impact mine pressures in the working face of the mining roadway will affect downhole roadways, downhole workers and ground buildings. 1. Influence on underground roadway The impact of impact rock pressure on the downhole roadway is mainly caused by the power to throw the ore body into the roadway, destroying the structure and support system of the ore body around the roadway, and losing its function. However, some small impact mine pressure or rock mass pressure relief will not damage the roadway. Partial damage, spalling, or partial damage to the roadway wall of the roadway. It should be determined that when the mine vibration is small, or the epicenter is far from the roadway, there will be no damage to the roadway. 2. Impact on miners In the area where the impact rock pressure occurs, if a worker is working, it may cause injury or even death. 3. Impact on surface buildings Mine vibration and impact mine pressure not only cause damage to the downhole roadway, but also cause damage to personnel working underground, and damage to the surface and surface buildings, and even catastrophic consequences such as earthquakes. Tungsten Carbide Roll Rings, also known as hard alloy roller ring, has been widely used in the rolling production of high-speed wire, bar, threaded steel, seamless steel pipes, etc. due to its good wear resistance, high-temperature hardness, heat fatigue resistance, thermal conductivity, and high strength. Tungsten Carbide Sleeve,Tungsten Carbide Roller, Steel Rebar Rolling,Steel Wire Rod Rolling,WC Roller Luoyang Golden Egret Geotools Co., Ltd , https://www.lyshieldcutters.com
The Tungsten Carbide Roll Rings we produce mostly come in two series: WC Co and WC Co Ni Cr, with Co and Co Ni Cr as binders ranging from 6wt% to 30wt%. From a usage perspective, hard alloy rollers have good comprehensive mechanical properties, with a bending strength of over 2200 MPa and an impact toughness of (4-6) × At 10 ^ 6J/m ^ 2, the Rockwell hardness (HRA) can reach 78~90. During the high-speed wire rolling process, the single groove steel passing amount is much higher than that of cold hard cast iron or high-speed steel rollers.