Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
We know that the scraper chain is composed of scraper, chain, E-bolt and locknut. It is one of the important supporting components of the scraper conveyor and plays a role in the scraper transport of coal. Squeegees and E-type bolts have the dual functions…
As one of the key parts of mine scraper conveyor, its performance and product quality directly affect the safety and benefit of coal production. Forging scrapers are widely used for their advantages such as good assembling performance, wear resistance…
The quality index of hydraulic cylinder in use 1. The low starting pressure standard of the hydraulic cylinder is the working pressure under the condition of no load of the hydraulic cylinder, which can reflect the comprehensive index of the manufacturing…
Input shaft is one of the key parts of reducer, which not only transmits torque, but also bears great bending stress and impact force. Traditional processing technology: blanking → normalizing → roughing → carbonitriding → drilling pinhole →…
The gear rail is located above the central trough of the scraper conveyor, and the planet wheel of the shearer drives the shearer to walk on the pin rail through meshing with the gear rail tooth surface. Therefore, the design requirements of the gear…