How are the heads of containers made from composite steel plates formed?
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How is the head of a container made of composite steel plates formed? If hot pressing is used, will the base layer and the overlay separate during the hot forming process? I’d like to ask.
It will not peel off; the composite steel plate layer and the base layer must achieve a certain level of adhesion before they can leave the factory, and this adhesion is sufficient to handle the forming process of the head
I think cold pressing is better for forming composite panel heads; if hot pressing is used, delamination will occur
Composite panels can also be formed by explosion; there are also standards and requirements for the manufacturing and inspection of composite steel plates, so there’s no need to worry about that.
If the plate is very thick, hot pressing is definitely necessary; however, hot pressing can cause the clad stainless steel to become sensitive to corrosion, which poses problems in applications where corrosion resistance is required. Does anyone have any good solutions?
Hot pressing is the best method: since composite panels are bonded using **explosion bonding, which provides very strong adhesion, hot pressing will not cause them to separate. The tower vessels we manufactured before (18+2) all used hot pressing, and they passed all inspections upon return.
There are three production processes for white steel composite panels: 1. Blasting compounding； 2 Blasting is in line with rolling ； 3 Rolling ； Regardless of the manufacturing process used to produce the composite panels, if they are to be used as end caps, it is best to first perform hot stamping on the thin sheet end caps, followed by cold spinning to adjust their diameter and dimensions. Thick plate end caps can be hot-stamped directly. To prevent the effects of heating on the stainless steel, a heat-resistant coating can be applied to its surface to reduce oxidation. Try to avoid using the cold spinning method for manufacturing composite plate end caps; in many cases, it is not possible to ensure that the composite layer remains bonded to the base layer. Once they separate, it is claimed that the quality of the material is poor. I have seen on multiple occasions at head manufacturers the spun head cladding separate from the base plate.
Composite plate end caps can only be pressed thermally; they cannot be formed cold； We have learned profound lessons ；