kelleg (31)in #dth • 11 months agoThe traditional way of unloading the rod of down the hole drillThe down-the-hole drill is mainly used in underground mines and tunnels, water conservancies, and other geotechnical…kelleg (31)in #split • last yearWhat are the structural characteristics of split set?In the early 1970s, by Professor James Scott in the USA and Solan in the UK, split sets are widely used to reinforce…kelleg (31)in #rock • last yearWhat are the surface strengthening equipment for rock drilling tools?Various strengthening techniques are applied to the surface of rock drilling tools to improve their durability and…kelleg (31)in #rock • last yearHow to choose the steel material of rock drill bit?Rock drill bits are the part that directly breaks the rock mass and are widely used in rock drilling engineering. The…kelleg (31)in #rock • last yearWhat is the key to manufacturing rock drill bits?The rock drill bit is a tool commonly used in mining and construction engineering, and it is also part of the rock…kelleg (31)in #rock • last yearStructural characteristics of different types of rock drill bitsRock drilling tools are essential tools in rock drilling and blasting. The mining of various mineral resources and the…kelleg (31)in #rock • last yearHow to improve the service life of rock drill bits in hard and abrasive rock drilling?Rock drilling and blasting is a key process in mining and other mining basic industries, and its efficiency and cost…kelleg (31)in #rock • last yearWhat are the joint forms of traditional rock drill bits?In the percussion drilling system, one end of rock drill bit is connected to drill rod through a joint to obtain the…kelleg (31)in #button • last yearWhat is the key process for producing button bit?Button bit is an ideal rock drilling tool for modern high-power and high-efficiency hydraulic rock drills. If the…kelleg (31)in #drill • last yearWhat are the common steel grades for B22 and B25 hexagonal drill rods?Hollow hexagonal tapered drill rod belongs to the category of small-section drill rods. The more common ones…kelleg (31)in #drill • last yearEffect of Decarburization on the Service Life of 55SiMnMo Drill RodDrill rod is a key component in rock drilling and blasting. Usually, its actual service life is only half an hour to…kelleg (31)in #drill • last yearCauses of Hole Deviation in Water Well ConstructionDuring the construction of water well drilling, the phenomenon of wellbore inclination often occurs, and a large…kelleg (31)in #rock • last yearFactors affecting heat treatment quality of rock drilling toolsThe quality of rock drilling tools after heat treatment is often exposed after use, and the metallographic structure…kelleg (31)in #shank • last yearWhat are the principles of geometric structure design and parameter selection of the shank adapter?As a modern supporting rock drilling tools, the shank adapter is created with the development of drilling technology…kelleg (31)in #cemented • last yearHow to test cemented carbide?Cemented carbide is an alloy material made by the powder metallurgy process, which is composed of a hard compound of…kelleg (31)in #drill • last yearFour face designs of DTH drill bitsThe DTH drill bit is a drill tool connecting the hammer with the spline of the drill bit to guide and transmit the…kelleg (31)in #rock • last yearManufacturing process of rock drill bitRock drill bit is the part that directly breaks rock mass, and is used to break the rock through the impact of the…kelleg (31)in #rock • 2 years agoCorrect connection of rock drill bitsRock drilling tools are generally composed of rock drill bits, drill rods, coupling sleeves, and shank adapters, and…kelleg (31)in #drill • 2 years agoTypes of hollow steelThe drill rod is the core product of rock drilling tools and one of the main consumption tools of rock drilling…kelleg (31)in #drill • 2 years agoWhat are the common positions of drill rod failure？Due to the harsh working environment, the hollow hexagonal tapered drill rod often has various failure modes during…
