31results about How to "Increase airflow resistance" patented technology

The application relates to the technical field of welding devices, and discloses a welding device for machining precision components of electromechanical equipment, which comprises an argon arc welding machine body, a turnover mechanism and a pre-cleaning mechanism arranged outside the argon arc welding machine body, the turnover mechanism comprises a welding gun, a driving assembly, a first turnover ring and a second turnover ring, the driving assembly is arranged outside the welding gun, the first turnover ring is arranged at the outlet of the welding gun, the surface of the first turnover ring is in contact with the surface of the welding gun, and the surface of the second turnover ring is fixedly arranged on the surface of the first turnover ring; when the surface of the second turnover ring is attached with welding slag, the resistance of argon gas passing through is increased. The welding device for machining precision components of electromechanical equipment can not only avoid the outlet blockage of the welding gun, the oxidation of the molten pool caused by forced equipment shutdown, but also provide protection for the tungsten electrode rod when the equipment is not used.