With the rapid development of China's mining carbide and mining carbide tools, the quality of products has improved day by day, and the variety has increased. Cemented carbide is widely used in engineering geology, oil exploration, mining and civil construction. The correct choice of cemented carbide grades is one of the extremely important factors to ensure the effective use of cemented carbide.
To choose the right cemented carbide grade, we need to consider the following factors:
1. Physical and mechanical properties of rock formations
The hardness and friction of the rock formation and its shape characteristics are the primary considerations for choosing cemented carbide grades. The harder the rock, the better the toughness of the selected cemented carbide, but not too soft. The wear resistance should not be too low, because too soft will increase the consumption of the carbide tips and at the same time reduce the drilling efficiency.
2. Rock drill model
Generally speaking, cemented carbide with low cobalt content (6~8%Co) is suitable for light rock drills to drill soft rock formations; cemented carbide with medium cobalt content (8~10%Co) is suitable for medium-sized rock drills to drill hard rock formations ; Cemented carbide with higher cobalt content (11~15%Co) is used for hard or extremely hard rock formations of heavy-duty rock drills
3. Method of breaking rock
The methods of breaking rock include cutting, shearing, crushing, crushing and so on.
4. Equipment Capability
Firstly, we should consider the wind pressure of the equipment. Secondly , we also need to consider impact energy, impact frequency of rock drill equipment, crushing air pressure, tool shape and size, cemented carbide specifications, etc.
Through the comprehensive consideration of the above points, only choosing the suitable grade of cemented carbide for mining tools can improve production efficiency under specific severe working conditions, and give full play to the special performance of cemented carbide parts.
Zhuzhou Old Craftsman can provide detailed grade performance reference, welcome to consult.
