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2021-04-27

Fixing method of button bit

The fixed tooth of the button bit refers to fix the cemented carbide on the bodies of button bits to make it play a supporting role. There are three general methods for fixing teeth of button bit: welding, cold pressing and hot inserting.

2021-04-14

Brief introduction of drilling rigs and its current situation for self-drilling anchor bolt

The term "drill rig" in the geotechnical anchorage industry refers to drilling rig that drills into the rock. According to different rock breaking methods, it is divided into three types: percussive drill rig, roller drill rig, and cutting drill rig.

2021-03-26

Kelleg provides finest self drilling anchor system with impeccable services

Kelleg self-drilling anchor bolt is today's solution to the increasing demands of the tunneling industry and ground engineering.

2021-03-23

Development direction of rock drilling equipment in China

In summary, for the development of domestic rock drilling equipment, the following aspects should be considered:

2021-03-18

Button Cemented Carbide for Rock Drilling Tools

Tooth profile of used in the button cemented carbide drill bit are divided into four shapes: hemispherical teeth, conical teeth, parabolic teeth, and wedge teeth.

2021-03-12

The development of down-the-hole drilling tools

The application fields of DTH drilling tools involve geological and mineral exploration, open-pit mining, construction excavation, water conservancy and hydropower engineering, mine quarrying for cement building materials and other construction projects.
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