The conveyor has a long history. Ancient Chinese high-revolver trucks and water-supply vehicles were the prototypes of modern bucket elevators and scraper conveyors. Belt conveyors are the main method of conveying bulk materials.
The direction is flexible, and the conveying direction can be flexibly changed. The maximum can reach 180 degrees.
Conveyor, each unit is composed of 8 rollers. Each unit can be used independently, or it can be connected by multiple units. It is easy to install;
Conveyor flexibility, the ratio of the longest to the shortest state of a unit can reach 3 times.
Two types of perforation process for conveyor baffles
(1) Blast drilling: After the material is irradiated with continuous laser light, a pit is formed in the center, and then the molten material is quickly removed by the oxygen flow coaxial with the laser beam to form a hole. Generally, the size of the hole is related to the thickness of the plate. The average diameter of the blasting perforation is half of the plate thickness. Therefore, the thicker blasting perforation of the plate has a larger hole diameter and is not round, so it is not suitable for use on parts with higher requirements (such as oil screen seam pipe). ), can only be used on scrap. In addition, since the oxygen pressure used for the perforation is the same as when cutting, the spatter is large.
(2) Pulse drilling: Pulse high-power pulsed laser is used to melt or vaporize a small amount of material, commonly used air or nitrogen as an auxiliary gas, in order to reduce the hole expansion due to exothermic oxidation, the gas pressure is lower than the oxygen pressure when cutting small. Each pulsed laser produces only a small particle spray, which is progressively deeper, so the thick plate piercing time takes several seconds.
Once piercing is complete, the auxiliary gas is immediately replaced with oxygen for cutting. In this way, the diameter of the perforation is smaller and the perforation quality is better than the perforation. The laser used for this purpose should not only have a higher output power; more importantly, the temporal and spatial characteristics of the time beam, so the general cross-flow CO2 laser cannot adapt to the requirements of laser cutting. In addition, the pulse perforation also requires a more reliable gas control system to achieve gas type, gas pressure switching and perforation time control.