cemented carbide

The paper describes the structures and developments of the hydraulic rock drills and the hydraulic open-pit, tunneling, mining, and anchor drill rigs home and abroad. It also points out the gaps between domestic and overseas hydraulic rock drilling machines and puts forward some advices on develop

The paper analyzed and commented the actuality and development trend of cemented carbide for rock drilling applications at home and abroad. With the progress of the technology and equipments for produc¬ing cemented carbide, the quality of homemade cemented carbide is gradually close to international