Production method for manufacturing vehicle-mounted concrete tank
A production method and concrete technology, which is applied in the field of metallurgical manufacturing, can solve the problems of poor wear resistance of steel plates and short service life of tanks, and achieve good corrosion resistance, easy processing and molding, and good plasticity
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Embodiment 1
[0025] In this embodiment, the steel plate thickness of the vehicle-mounted concrete tank is 2.0mm, and its chemical composition and mass percentage are: C: 0.15%, Si: 0.10%, Mn: 3.35%, P: 0.011%, S: 0.003% , Cu: 0.20%, Ti: 0.010%, Als: 0.020%, N: 0.0042%, and the balance is Fe and unavoidable impurities.
[0026] In this embodiment, the production method for making a vehicle-mounted concrete tank includes slab heating, high-pressure water dephosphorization, controlled rolling and curling processes, and the specific process steps are as follows:
[0027] (1) Slab heating process: heating the slab to 1180°C;
[0028] (2) High-pressure water phosphorus removal process: the pressure of phosphorus removal water is 18.0MPa;
[0029] (3) Controlled rolling process: rough rolling is rolled by 5 rolling mills, and the exit temperature is 1060°C; finish rolling is rolled by 7 rolling mills, the finish rolling entrance temperature is 980°C, and the exit temperature is 840°C;
[0030] ...
Embodiment 2
[0033] In this embodiment, the steel plate thickness of the vehicle-mounted concrete tank is 6.0mm, and its chemical composition and mass percentage are: C: 0.17%, Si: 0.15%, Mn: 4.42%, P: 0.013%, S: 0.005% , Cu: 0.35%, Ti: 0.019%, Als: 0.035%, N: 0.0040%, and the balance is Fe and unavoidable impurities.
[0034] The production method for making the vehicle-mounted concrete tank in this embodiment includes slab heating, high-pressure water dephosphorization, controlled rolling and curling processes, and the specific process steps are as follows:
[0035] (1) Slab heating process: heating the slab to 1220°C;
[0036] (2) High-pressure water phosphorus removal process: the pressure of phosphorus removal water is 19.0MPa;
[0037] (3) Controlled rolling process: rough rolling is rolled by 5 rolling mills, and the exit temperature is 1020°C; finish rolling is rolled by 7 rolling mills, the finish rolling entrance temperature is 1000°C, and the exit temperature is 860°C;
[0038...
Embodiment 3
[0041] In this embodiment, the steel plate thickness of the vehicle-mounted concrete tank is 10.0mm, and its chemical composition and mass percentage are: C: 0.18%, Si: 0.20%, Mn: 4.50%, P: 0.015%, S: 0.010% , Cu: 0.40%, Ti: 0.025%, Als: 0.030%, N: 0.0060%, and the balance is Fe and unavoidable impurities.
[0042] The production method for making the vehicle-mounted concrete tank in this embodiment includes slab heating, high-pressure water dephosphorization, controlled rolling and curling processes, and the specific process steps are as follows:
[0043] (1) Slab heating process: heating the slab to 1240°C;
[0044] (2) High-pressure water phosphorus removal process: the pressure of phosphorus removal water is 22.0MPa;
[0045] (3) Controlled rolling process: rough rolling is rolled by 5 rolling mills, and the exit temperature is 1060 °C; it is coiled by a hot coil box; the finish rolling is rolled by 7 rolling mills, the finish rolling entrance temperature is 1030 °C, and ...
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