Carbon steel welding dish head

Carbon steel welding dish head

  • Carbon steel welding dish head
Payment Type: L/C,T/T
Transportation: Ocean,Air
Productivity: 600ton/per month
Packaging: Wooden crates or steel frame
Delivery Time: 35 Days
Place of Origin: china
Brand: Hokkai

Product Description

This is also called an elliptical head. The shape of this head is more economical, because the height of the head is just a fraction of the diameter. Its radius varies between the major and minor axis; usually the ratio is 2:1.

It is a weiding head. In the long-repeated JB741-80, there was a restriction on the position of the welding seam for head closures.
The starting point is to make the welding seam as far away as possible from the corner transition zone where the heading stamping has large deformation.
In order to avoid the splicing weld is broken at a large deformation. Years of practice have confirmed that there are two things wrong with this restriction: 1. 
It is easy to cause material waste.

can not ensure the quality of the weld deformation,
The qualified quality of the weld deformation should be judged by the non-destructive test results. According to this, GB150--89 and 98 have canceled this position limitation, but require that the welded heads be formed after welding.
There are no bans or requirements in relation to the T-slot (also known as T-slot) standards and regulations, and in fact it is impossible to disable it because the intersections of the longitudinal and girth welds of the cylinder are all T-slots.
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