Questions for help! In the SW6 head export calculation book, how is the "minimum thickness" calculated?
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This post was last edited by WallaceLee on 2022-6-25 20:39. Using SW6 to calculate the head, a question arose.: In the derived calculation book, how is the "minimum thickness" δmin of the head calculated? First of all, the negative deviation C1 specified for my head is 0. When my head material is low alloy steel such as Q345R, the minimum thickness of the head is 3mm: When my head material is high alloy steel such as S30408, the minimum thickness of the head is 2.7mm: I want to ask now: 1. In the calculation book derived from the SW6 head, what does the minimum thickness δmin depend on? 2. Does the minimum thickness δmin depend on the material of the head? Is it related to low alloy steel, high alloy steel and carbon steel?
This is the provision of Article 4.3.7 of GB/T150.1-2011
Please see the relevant provisions in 4.3.7 of GB/T150.1-2011 and Chapter 5 of GB/T150.3-2011...
Is this what you are referring to? In other words, the minimum thickness is related to the material?
Yes, for the head, please also refer to the relevant regulations in Chapter 5 of GB/T150.3-2011.
2.7=0.15%* 1800
2.7=0.15%* 1800
Is it calculated based on the sentence in GB/T 150-2011 5.3.2 Internal pressure (concave surface pressure) elliptical head?
2.7=0.15%* 1800