Issues regarding the layered partitions in heat exchangers
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Dear experts, regarding the edge trimming of the sealing ends of the partition plates in heat exchanger tube boxes, should this trimming be done before welding the partition plates, or after heat treatment?
This post was last edited by wanlirn on 2021-7-9 at 16:27; the deformation amount is basically none after trimming
Generally, the partition plates are processed individually before welding; it’s difficult to process them after welding. We use a edge planer to finish the processing, leaving an appropriate amount of length.
Trim the edges before welding. After heat treatment, only one pass is used to machine the sealing surface. Just make sure it’s level.
Grinding before welding, and compared to machining only the sealing surface after welding