• May 20, 2023

The specific working principle of the core projector Resin sand shell core method is a detailed core process, it is containing phenolic resin core sand (shell core sand) into the heated metal box, keep a certain time (5~15s), near the core wall of the core sand resin dissolution and sand bond together, along the core chamber wall with the determined thickness of the plastic state shell. After pour...

• June 05, 2023

The working principle of fiber laser is as follows: The pump light emitted by the pump source is coupled into the gain medium through a mirror. Since the gain medium is a rare-earth-doped fiber, the pump light is absorbed, and the rare-earth ions that have absorbed the energy of the photon undergo an energy level transition and achieve particle count. Inversion, the inverted particles pass through...