(1)由于12Cr1MoVg合金板经精轧机轧制后直接进入在线热处理设备，省去了常规工艺所需的钢板重新加热过程，可以节省大量能源，并简化了工艺流程，降低了生成成本。
(1) because the 12Cr1MoVg alloy plate by rolling directly after entering the online heat treatment equipment, required for eliminating the common process of steel reheating process, can save a lot of energy, and to simplify the process, reduce the production cost.
(2)由于省去了重新加热工序，故减少了热处理工艺时间，相应提高了热处理设备能力，同时由于热处理设备为在线布置，也减少了钢板传输时间。
(2) the heat treatment process is reduced by eliminating the need for re heating process, which improves the ability of heat treatment equipment, and also reduces the transmission time of the steel plate due to the on-line arrangement of the heat treatment equipment.
(3)通过优化钢板的化学成分以及控制直接淬火前的轧制条件，将变形和热处理工艺有机合起来，可有效改善钢板的综合性能，获得传统再加热淬火工艺所得不到的强韧性能组合。
(3) by optimizing chemical composition and control of direct quenching steel plate before rolling condition, the deformation and heat treatment process of organic combination, can effectively improve the comprehensive performance of steel plates, traditional reheating and quenching process to the combination of strength and toughness properties.
12Cr1MoVg合金板轧后直接淬火技术工艺可分为奥氏体再结晶区直接淬火与奥氏体未结晶区直接淬火。奥氏体再结晶区直接淬火，即对在奥氏体再结晶区温度区间终轧的钢板进行淬火，合金元素尤其是碳氮化合物因轧制温度高而均匀地固溶于奥氏体中，使钢板淬透性提高，因此淬火后能增加钢板的强度和韧性。
The direct quenching technology of 12Cr1MoVg alloy plate can be divided into the direct quenching of austenite recrystallization region and the direct quenching of austenite non crystalline region. Recrystallization zone direct quenching austenite, the recrystallization temperature range in austenite rolling plate quenching, alloying elements especially carbon compounds because of high temperature rolling and evenly dissolved in austenite, the steel hardenability, so after quenching can increase the strength and toughness of steel plate.

12Cr1MoVg合金板轧后直接淬火的技术关键在于板温控制。如果板温控制不均，不仅会造成钢板内部组织的不均匀，而且会出现可视或潜在的不良板型缺陷，如横向C形翘曲、边部或尾部翘起来的L形翘曲、切成条状后发生的切条状翘曲等。因此，控制好钢板的冷却均匀性，保证直接淬火后钢板板形平直、组织性能一致、残余应力小是决定直接淬火技术是否成功的关键。
The key to the direct quenching of 12Cr1MoVg alloy plate after rolling is the temperature control. If the board temperature control are not uniform will not only cause the internal structure of steel plate, and there will be bad flatness defects visible or potential, such as cutting strip lateral C shape warping, edge or L shaped tail up warping, cut into strips after warping. Therefore, it is the key to determine the success of the direct quenching technology to control the cooling uniformity of steel plate, to ensure that the shape of the steel plate is straight, the consistency of the microstructure and the residual stress are small.
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