Contents of the article:
- Overview of China's Brazing Steel and Drilling Tools Industry.?
- Working Principle of Rock Drilling for Mining Cemented Carbide Products.?
- Overview of the Use of Mineral Alloys in Drilling Tools.?
- The Failure Mode of Mining Alloy in the Use of Drilling Tools.
- Expectations for the Future Development of Cemented Carbide for Mining??
1. Overview of China's Brazing Steel and Drilling Tools Industry
Drilling tools used to drill rock are usually called brazing tools. As of the end of 2020, the product output value of China's brazing steel and drilling tools industry is about 10.3 billion yuan, and the proportions of product types are roughly as follows:
(1)Drilling tools for light rock drilling machinery (H22mm cone connecting drill rod, D38-42mm diameter in-line, bulbous cone connecting drill bit, H19mm cone connecting drill rod, D32-36mm diameter cone connecting drill bit, integral Drill rod, etc.) about 25%.
(2)Drilling tools for pneumatic rail type rock drills (R32 metric thread 1.1m, 1.2m extension rod, threaded connection light extension rod, D48-60mm diameter cross-shaped, spherical tooth-shaped threaded connection bit, connecting sleeve, guide rail Type pneumatic rock drill shank, etc.) about 0.6%.
(3)Drilling tools for hydraulic rock drills (drilling drill rods, underground mining drill rods, open-air rock drill rods, threaded connection button bit, hydraulic rock drill shank, connecting casing, etc.) about 10%,
(4)Low and high air pressure down-the-hole drilling tools (low and high air pressure impactor and down-the-hole drill bits, drill pipes) are about 15%.
(5)Mining roller cone drilling tools and drilling tools for raise drilling rigs (D250mm, D310mm diameter mining roller cone bits, raise drilling tool bits, roulettes, drill pipes, etc.) are about 10%.
(6)Drilling tools for metallurgical furnaces (drill pipes, drill bits, connecting sleeves, drill shanks, etc.) are about 5%. (Only the output value of the member units of the association, the actual output value is greater than this number).
(7)Various pick drilling tools (pickers for coal mining machines, picks for engineering rotary drilling rigs, picks for road construction machinery, picks for large-scale open-pit excavation machinery, picks for trench excavation machinery, etc.) about 15%.
(8)Drilling tools for shield machines and trenchless drilling rigs (disc hobs, tooth hobs, scrapers, etc.) are about 6%.
(9) Other types of drilling tools (coal, geology, foundation pile engineering, water source drilling, drilling tools for trenchless engineering machinery, etc.) are about 13.5%.
READ MORE:
Drilling Tool Industry's Requirements and Expectations for Mining Cemented Carbide'
