What is alloy head
For in the pressure vessel made of an alloy head and cylinder in terms of composition, such as tanks, because the alloy head and cylinder joints structure is not continuous, so that the site has become one of the high stress area. Therefore, the detailed stress analysis of the pressure vessel connecting portion is to ensure the safe operation of essential content. In general, in the pressure vessel subjected to internal pressure only, in the design process mostly only calculated according to Hajime thick inner pressure and check their strength, if the pressure in the cylinder in the process, being part of the local alloy head of the external load, such as taking over the alloy head with an upper transfer the weight of the load equipment, wind loads, seismic loads, and eccentric loads, etc., this mantis processing load acting on the bearing pressure, tension or bending moment, or several of the forces and moments of force in this case, using the traditional theoretical calculation can not answer this pressure will force the alloy head, what impact the cylinder alloy head and the high stress area connection. Simplified and alloy head joints of pressure vessels in general, due to the geometry of the discontinuity, the maximum stress occurs in the cylinder alloy head and the connecting portion of the inner surface.
When coupled with two symmetrical bearings, must withstand external loads and moments on the alloy head with the holder, the holder and the connection alloy head will stress concentrations, the maximum stress occurs in the seat and alloy head connection the angular position, but it is still small relative to the maximum stress in the cylinder alloy head and connecting parts, that is the entire container structure, the maximum stress joints still appear in English and alloy head. Not affect the size and distribution of stress and bearing stress generated at the connection with the alloy head of the cylinder alloy head and the connecting portion. In order to improve the stress status of the cylinder alloy head and the connection area, a number of measures can be improved, such as the design of a transitional ring at the junction of the alloy head and simplified.
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