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(1)由于12Cr1MoVg合金板經(jīng)精軋機(jī)軋制后直接進(jìn)入在線熱處理設(shè)備，省去了常規(guī)工藝所需的鋼板重新加熱過程，可以節(jié)省大量能源，并簡化了工藝流程，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)由于省去了重新加熱工序，故減少了熱處理工藝時間，相應(yīng)提高了熱處理設(shè)備能力，同時由于熱處理設(shè)備為在線布置，也減少了鋼板傳輸時間。
(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)通過優(yōu)化鋼板的化學(xué)成分以及控制直接淬火前的軋制條件，將變形和熱處理工藝有機(jī)合起來，可有效改善鋼板的綜合性能，獲得傳統(tǒng)再加熱淬火工藝所得不到的強(qiáng)韌性能組合。
(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合金板軋后直接淬火技術(shù)工藝可分為奧氏體再結(jié)晶區(qū)直接淬火與奧氏體未結(jié)晶區(qū)直接淬火。奧氏體再結(jié)晶區(qū)直接淬火，即對在奧氏體再結(jié)晶區(qū)溫度區(qū)間終軋的鋼板進(jìn)行淬火，合金元素尤其是碳氮化合物因軋制溫度高而均勻地固溶于奧氏體中，使鋼板淬透性提高，因此淬火后能增加鋼板的強(qiáng)度和韌性。
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合金板軋后直接淬火的技術(shù)關(guān)鍵在于板溫控制。如果板溫控制不均，不僅會造成鋼板內(nèi)部組織的不均勻，而且會出現(xiàn)可視或潛在的不良板型缺陷，如橫向C形翹曲、邊部或尾部翹起來的L形翹曲、切成條狀后發(fā)生的切條狀翹曲等。因此，控制好鋼板的冷卻均勻性，保證直接淬火后鋼板板形平直、組織性能一致、殘余應(yīng)力小是決定直接淬火技術(shù)是否成功的關(guān)鍵。
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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