PfeifferTurbo Molecular PumpVacuum pumping of electron beam welding machine
Shanghai Bodong Pfeiffer Turbo molecular pump Hipace 300 Successfully applied to vacuum extraction in high vacuum electron beam welding machines.
Vacuum electron beam welding uses a directed high-speed electron beam to collide with the workpiece during the welding process, converting kinetic energy into thermal energy and melting the workpiece, forming a pure, smooth, and defect free weld seam. Vacuum electron beam welding requires welding to be carried out in vacuum, with a vacuum degree requirement of 10^-2 Up to 10^-4Pa， A good vacuum environment can ensure the "protection" of the molten pool to prevent oxidation and burning of metal elements.

In order to maintain a stable vacuum level, electron beam welding equipment manufacturers generally configuremolecular pumpTo vacuum, electron beam welding machine is a key equipment in the production line of end customers. If the machine stops, the entire production line will come to a halt, thereforemolecular pumpThe reliability requirement is very high, and the Pfeiffer molecular pump rotor bearing is specially designed, usingOil cotton lubrication (plays a role in cleaning bearings and cooling bearings)），Practice has proven PfeifferTurbo Molecular PumpThe running time can reach 100000 hours! The advantages of longer running time and easy maintenance make it widely integrated into electron beam welding equipment.

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