I would like to ask everyone about trimming the cylinder and spherical head
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Since the barrel’s edges have been trimmed and the spherical head has been welded to it, won’t the ends of the barrel become thinner, resulting in insufficient strength as a result?
But during processing, the ends of the cylinder are ground and thinned out; they are still part of the cylinder, right? Please advise
There are three methods available for making the cylinder wall thicker than the head; as shown in the figure below, this is referred to as def
The ball seal connected in this manner is not a complete semicircle; it is equivalent to a semicircle from which a portion has been removed. The portion that is removed is located on the thinned section of the cylinder, and the center line of the ball seal should be on the opposite side of the starting point of thinning (it cannot be exactly at that starting point to avoid machining errors). For specific requirements, refer to GB/T 150
Floors 2, 4, and 7 are correct; for such joints with unequal thicknesses, it is recommended to align the diameters of the steel plates and trim the edges on both sides； The advantage of this approach is that the stress distribution is relatively uniform, resulting in a better loading condition compared to joints with single-sided trimming.
The requirements for the 5th floor are those specified in GB150; just follow them accordingly: lol
Spherical heads cannot be thinned on the cylinder; instead, cladding must be applied to the head.