The principle scheme of the unit of modular design for frontal mining of coal seams was developed at the Department of Mining Electromechanics of the branch of LMI in Vorkuta.
The study of the stress-strain state of the molding mixture during compaction is the basis for the development of engineering methods for calculating rational technological parameters of the molding process, optimizing the parameters of molding machines and tooling, improving the quality of castings.
Operation of quarry excavators equipped with teeth of II0GIZL manganese steel on loading blasted rock showed a relatively high resistance of teeth (up to a month and more), which is explained by the emergence of significant riveting on their working surfaces as a result of strong impacts during scooping ...
Manual drilling machines of the type IP I0IIpolupolulyu great spread in the installation and repair work. Their main advantages are small overall dimensions, convenience of energy transportation, high safety, reliability and durability ...
