quenching and tempering

The results show that the best quenching temperature is850 ℃, the hardness is not significantly changed ( 50~ 53 HRC) through different quenching and tempering temperature.

结果表明，试验钢的最佳淬火温度为850℃，试验钢经不同温度淬火、低温回火后，钢的硬度变化并不显著，在50~53HRC之间；

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The Preparation for the Carburized Quenching and Tempering Process of the Long Slide Plate

长滑板件的渗碳淬回火工艺的编制

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The catenary suspension furnace for quenching and tempering of the crankshafts has been successfully developed, and thus main heat treatment equipment has been renewed.

研制了用于曲轴调质的悬链炉，从而更新了主要的热处理设备。

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Quenching and tempering heat treatment are integrated in order to improve the mechanical properties of fasteners to meet the product requirements of tensile strength and yield ratio value.

热处理调质是为了提高紧固件的综合力学性能，满足产品规定的抗拉强度值和屈强比。

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According to the requirement of hardness on roller surface, the quenching temperature of HSS containing high carbon and high vanadium is 950~ 1100 ℃, and the tempering temperature is 530~ 550 ℃, tempering treatment one time can meet the requirement.

根据轧辊辊面硬度要求，高碳高钒高速钢的淬火温度为950～1100℃，回火温度为530～550℃，一次回火即可。

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The changes of quenching and tempering hardness and the microstructure transformation of four kinds of Cr-W-Mo-V medium-alloy steels were investigated.

研究了4种不同成分的Cr-W-Mo-V中合金钢的淬火硬度、回火硬度变化和组织结构转变。

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The guide rail is the 45 # steel, the quenching and tempering, the correct grinding.

导轨为45 # 钢 、 调质, 精磨.

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Development and Application of Catenary Suspension Furnace for Quenching and Tempering of the Crankshafts

曲轴调质悬链炉的研制及应用

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At the same quenching temperature, as the tempering time extended and tempering temperature rise, the strength of the sample decreased, plasticity, impact toughness and corrosion resistance increased.

随着回火温度和回火时间的增加，相同淬火温度下试样的强度下降，塑性、冲击韧性和耐腐蚀性均提高。

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In this paper, relation between effective size and tempering temperature-time for quenching speciman has been derived with new tempering parameter and heat-transfer theory, that has proved by experiments.

本文利用新回火参数与传热学原理推导出圆柱试样淬火后回火时有效尺寸与温度时间的关系，并用实验证明它的有效性。

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Immediate quenching and tempering process of steel T 10 after low temperature salt bath chromizing was studied.

研究了T10钢在低温盐浴渗铬后直接淬火并回火工艺.

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Ten influence factors of Quenching and Tempering Temperature Choice for Die& Mold Steel

模具钢淬火回火温度选择的十种影响因素

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The accuracy of temperature in quenching and tempering furnace was controlled within ± 5 ℃.

淬火炉和回火炉控温精度均

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Measurement for carburizing layer ′ s depth of quenching and tempering component by metallography

淬回火零件渗碳层深度的金相法测定

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When quenching plus tempering and tempering directly, the hardness and wear resistance of steels are increased with tempering temperature increasing. The highest hardness and wear resistance of steels appear at 560 ℃ three times tempering, and be equivalent with wrought high speed steels.

淬火+回火和铸态直接回火的高速钢随着回火温度的升高，硬度和耐磨性逐渐升高，在560℃三次回火时获得最高的硬度及室温耐磨性，且与锻造高速钢相当。

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The connection between low temperature tempering parameters and hardness of the cold rolling work rollers after 50/ 250 Hz double frequency induction quenching is introduced A strong negative linear correlativity between the tempering parameters and hardness is shown by regressive equation computation

介绍冷轧工作辊经50/250Hz双频感应淬火后低温回火工艺与硬度的关系，揭示了二者之间的规律，并用回归方程计算方法阐明回火工艺与硬度之间存在强负线性相关关系

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Its CCT curve was determined by test. The influence of quenching and tempering temperature on the mechanical properties was also studied.

试验测定了该钢的CCT曲线，探讨了淬火和回火加热温度对该钢力学性能的影响。

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In this paper, repeated quenching and tempering processing was used to not only refine the grain size and but also keep the microstructure as tempered sorbite. Good wear resistance is also desired to be obtained by the processing.

本文设计旨在既保留回火索氏体组织又能细化晶粒的多次调质热处理工艺，以期使其耐磨性得到提高。

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Control of Distortion for Large and Thin Quenching and Tempering Steel Plate after Cold Pressing Quenching

大型薄形调质钢板热处理冷压淬火畸变控制

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Heat treatments of DET ( Divorced Eutectoid Transformation) and quenching+ tempering were carried out to obtain the microstructure of ferrite with ultra-fine carbides for a 1.6% C ultra-high carbon steel.

对1.6%C超高碳钢进行离异共析和淬火+高温回火两种工艺球化预处理，获得了铁素体基体上分布超细碳化物组织，在此基础上进行了两类淬火处理。

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