The traditional casting production is design - mold - modeling - pouring - cleaning - post-processing - machine. The 3D printing technology is called additive manufacturing technology. Its working principle is to decompose the three-dimensional model designed by the computer into several
The full negative pressure zone of the mine is the area where the air pressure of the main fan is lower than the ground pressure caused by the underground, and the negative pressure area does not cover the blind alley and the local fan ventilation area. The pressure difference along the roadway in t
Almost all countries in the world are threatened by varying pressures to varying degrees. 1783 United Kingdom first in the world to report the impact of coal mining in what happened pressure phenomenon. Later, in dozens of countries and regions such as the former Soviet Union, South Africa, Germany,
The wireless bridge will know that the wireless bridge has a certain signal strength, too strong is not good, too weak is not good. What should be done if the wireless bridge detects that the signal is incorrect after installation? 1, check whether the wireless bridge is applicable For example,
For logistics people, smart logistics has become a popular keyword. However, regardless of how the industry develops, digitalization, big data, Internet and warehousing, and other "black technology" how cool, the car will always be the first. Having a high-efficiency, high-intellige
WSS-401 bimetal thermometer is an on-site measuring instrument suitable for measuring medium and low temperature, which can be used to directly measure the temperature of gas, liquid and steam. The thermometer has the characteristics of waterproof, anti-corrosion, shock-resistant, intuitive, easy
About CBM Coalbed methane, commonly known as coal mine gas, is an unconventional natural gas that is mainly in the state of adsorption and is produced and stored in coal-bearing strata. Its composition is basically the same as that of conventional natural gas (methane content is more than 95%, calo