Method for producing steel plate of petroleum storage tank by using direct quenching process
A technology for oil storage tanks and steel plates, which is applied in the field of low-alloy steel plate production technology, can solve problems such as long production cycle, high equipment investment, and large energy consumption, and achieve the effects of reduced energy consumption, simple smelting process, and stable comprehensive mechanical properties
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[0027] Examples The mechanical properties of steel plates with three thickness specifications after tempering are shown in Table 1, the results of high heat input welding are shown in Table 2, and the results of series temperature shocks are shown in Table 3.
[0028] In order to reflect the effects of the present invention, we introduce comparative examples for comparison. The chemical composition of the comparative example steel plate is shown in Table 4, quenched and tempered by off-line quenching + tempering process, and the mechanical properties and high heat input welding results are shown in Table 5.
[0029] Table 1 Mechanical properties of the steel plates of the examples after tempering
[0030]
[0031] Table 2 The results of large heat input welding in the embodiment
[0032]
[0033]Table 3 Temperature shock results of steel plate series in the examples
[0034]
[0035] The chemical composition of table 4 comparative example
[0036]
[0037] Ta...
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