2results about How to "Reliable forming" patented technology

The application discloses underwater laser welding torch, including laser head and drain cover, laser head includes sealed shell, laser head body, welding mechanism and pressure balance mechanism, one end of the sealed shell is detachably connected with the drain cover, the laser head body is arranged at one end of the sealed shell away from the drain cover and extends into the sealed shell, the welding mechanism is arranged in the laser head body, and the pressure balance mechanism is used for balancing pressure on both sides of the sealed shell. The underwater laser welding torch can guarantee the sealing property of the torch structure under water through the arrangement of the pressure balance mechanism and the drain cover, the local dry method environment jointly created can realize stable forming under the environment of several meters of water depth, the influence of deep water pressure on the drainage effect and the dry method environment is effectively overcome, the requirements of no water and pure argon protection in the weld area are realized, underwater laser welding can be stably and reliably carried out, the welding pool can be better protected, and the weld forming is good.

An active energy irradiation device includes a housing, an irradiation unit, a heat conduction member, a first opening that is provided at the housing, and an air introduction unit that deflects air flowing into the housing along a first direction via the first opening to a second direction intersecting the first direction to introduce the air to the heat conduction member. The air introduction unit includes a partition that is provided to face the first opening in the housing, and a filter that is provided between the first opening and the partition, and collects foreign substances contained in the air. The filter includes a first filter portion that is provided on the heat conduction member side to come into contact with the partition without being exposed from the first opening as viewed from the first direction.