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Working principle of down-the-hole drilling rig
Down-the-hole drilling rigs are special equipment for drilling holes, mainly used in groundwater, oil and gas exploration, mineral mining and other fields. It works like this: Drill rod and bit: Down-the-hole drilling rigs typically consist of a drill rod that rotates to drive the bit into the gr...Read more -
History of the Rock Drill
The history of rock drilling dates back thousands of years to ancient civilizations. Ancient humans used simple tools such as hand-held chisels and stone axes to dig rock, mine stone and build buildings. However, with the advancement of technology and the development of industrialization, the des...Read more -
Heat treatment process of rock drilling tool shank adapter
The heat treatment process of rock drilling tool shank adapter usually includes the following steps: Pretreatment: First clean the shank tail to remove surface dirt and oxides. Raw materials usually require pretreatment before actual processing. This includes removing dirt, grease and oxides from...Read more -
Difference between hydraulic rock drill and pneumatic rock drill
Hydraulic rock drills and pneumatic rock drills are two different types of rock drilling tools, and they all have some obvious differences in principle, use and performance. The following are the main differences between hydraulic rock drills and pneumatic rock drills: Principle: The hydraulic ...Read more -
China’s high-speed rail test runs at a new speed, breaking a world record
China has confirmed that its latest high-speed train, the CR450, reached a speed of 453 kilometers per hour in the test phase, ahead of current high-speed trains in Germany, France, Britain, Spain and other countries. The data also broke the world’s fastest high-speed train speed record. A ...Read more -
China leads the green energy transition
China is adding renewable energy capacity at roughly the same rate as the rest of the world combined. China installed three times as much wind and solar power as the United States in 2020, and is on track to set a record this year....Read more -
Mining operations refer to various mining and production activities carried out in mines or mining areas
Mining operations refer to various mining and production activities carried out in mines or mining sites. Mining operations cover all aspects of mine exploration, development, mining, processing, transportation, etc., aiming to convert underground or surface ore, ore sand or minerals into useful ...Read more -
Xi ‘an Juli to create a new highland of smart industry
In the first half of this year, the Silk Road Software City has achieved obvious results in attracting investment, introducing 6 billion yuan of domestic capital and actually utilizing 18 million US dollars of foreign capital, full...Read more -
Xi ‘an cultivates Qinling humanistic eco-tourism resort circle
The "2023 Xi 'an Qinling Eco-Tourism Season", co-sponsored by Xi 'an Culture and Tourism Bureau and Xi 'an Tourism Group, kicked off at Tianqiao Lake International Camping Site in Hu Yi District, Xi 'an on December 20. According to...Read more -
The heart is where the feelings are
At this moment in the Mausoleum of the Yellow Emperor, my sense of belonging arises spontaneously. No matter how far overseas students go, they all know where our roots are and where our dreams are." The president of the Argentine ...Read more -
Look at China’s green development achievements
In recent years, China has always been committed to green development, exploring ways for development and conservation to co-exist. In addition to port operations, the concept of carbon reduction has been deeply integrated into var...Read more -
China’s artificial intelligence industry has a strong development momentum and the industrial layout has accelerated
According to the estimates of the China Academy of Information and Communications Technology, the scale of China's artificial intelligence core industry will reach 508 billion yuan in 2022, and China's artificial intelligence industrial ecology is gradually forming, and ...Read more
