Container corner fitting and heat treatment process thereof
A technology for containers and corner fittings, which is applied in heat treatment furnaces, heat treatment equipment, metal material coating processes, etc., can solve problems such as insufficient strength and low-temperature toughness, and achieve the effects of ensuring production costs, ensuring steel properties, and improving low-temperature toughness
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Example Embodiment
[0045] Example 1
[0046] According to a container corner fitting of this embodiment, the alloy composition of the container corner fitting is recorded as the following elements in terms of mass percentage: 0.09~0.15%C, 0.95~1.40%Mn, 0.27~0.36%Si, 0.19~0.26%Ni , 0.15 to 0.22% Cr, 0.007 to 0.015% Al, up to 0.03% P, up to 0.03% S, up to 0.08% Mo, up to 0.17% Cu, up to 0.01% V, the balance is Fe and unavoidable impurities. Specifically in this embodiment, it is composed of the following elements: 0.09% C, 0.95% Mn, 0.27% Si, 0.19% Ni, 0.15% Cr, 0.007% Al, 0.01% P, 0.01% S, 0.04% Mo, 0.10% Cu, 0.01% V, the balance is Fe and unavoidable impurities, where Ni / Cr=1.27, Mn / Si=3.5. The container corner fitting of this embodiment is processed by the following heat treatment process:
[0047] 1. Carburizing: Put the corner fittings of the container into a high-temperature furnace at 920°C, add diluent methanol and enriched ethyl acetate into the high-temperature furnace at the same time, and ...
Example Embodiment
[0051] Example 2
[0052] According to a container corner fitting of this embodiment, the alloy composition of the container corner fitting is recorded as the following elements in terms of mass percentage: 0.09~0.15%C, 0.95~1.40%Mn, 0.27~0.36%Si, 0.19~0.26%Ni , 0.15 to 0.22% Cr, 0.007 to 0.015% Al, up to 0.03% P, up to 0.03% S, up to 0.08% Mo, up to 0.17% Cu, up to 0.01% V, the balance is Fe and unavoidable impurities. Specifically, in this embodiment, it is composed of the following elements: 0.15% C, 1.40% Mn, 0.36% Si, 0.26% Ni, 0.22% Cr, 0.015% Al, 0.03% P, 0.03% S, 0.08% Mo, 0.17% Cu, 0.01% V, the balance is Fe and unavoidable impurities, where Ni / Cr=1.18 and Mn / Si=3.9. The container corner fitting of this embodiment is processed by the following heat treatment process:
[0053] 1. Carburizing: Put the corner fittings of the container into a high temperature furnace at 940℃, add diluent methanol and enriched ethyl acetate into the high temperature furnace at the same time, a...
Example Embodiment
[0057] Example 3
[0058] In the container corner fitting of this embodiment, the alloy composition of the container corner fitting is recorded as the following elements in terms of mass percentage: 0.09~0.15% C, 0.96~1.37% Mn, 0.32~0.36% Si, 0.19~0.26% Ni , 0.18 to 0.21% Cr, 0.007 to 0.015% Al, up to 0.015% P, up to 0.015% S, up to 0.08% Mo, up to 0.17% Cu, up to 0.01% V, the balance is Fe and unavoidable impurities. Specifically in this embodiment, it is composed of the following elements: 0.09% C, 0.96% Mn, 0.32% Si, 0.19% Ni, 0.18% Cr, 0.007% Al, 0.01% P, 0.01% S, 0.04% Mo, 0.10% Cu, 0.01% V, the balance is Fe and unavoidable impurities, where Ni / Cr=1.06, Mn / Si=3.0, the container corner fitting of this embodiment is processed by the following heat treatment process:
[0059] 1. Carburizing: Put the corner fittings of the container into a high-temperature furnace at 920°C, add diluent methanol and enriched ethyl acetate into the high-temperature furnace at the same time, and co...
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