In order to facilitate inlaying of embedded finned tubes, there should be a certain side clearance between the steel strip and the spiral groove. If the side clearance is too small and interference is formed, it will be difficult for the mosaic process to proceed smoothly.
The inlaid spiral finned tube is to pre-process the spiral groove of a certain width and depth on the steel pipe, and then inlay the steel strip on the steel pipe on the lathe. During the winding process, due to a certain pre-tightening force, the finned tube steel strip will be tightly clamped in the spiral groove, thus ensuring a certain contact area between the steel strip and the steel tube.
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Recently, IHC Merwede of the Netherlands acquired Hytech, a marine equipment design company, with the ability to develop a complete saturated diving system indoors to improve the overall efficiency and safety of the diving support vessel. It is reported that Hytech after the acquisition is renamed IHC Hytech BV, but will still operate independently. It is also known that the diving support vessel designed and built by IHC Merwede can operate at a depth of 300 meters.