A better quenching effect is obtained when the temperature increases; and the quenching result is also influenced by the mixing time of fluorescence quenching agent and the pulp. 结果表明,浆料温度及荧光消除剂与浆料的混合作用时间对荧光消除效果有较大影响。
Modifications of the term quenching include direct quenching, fog quenching, hot quenching, interrupted quenching selective quenching, spray quenching, and time quenching. 淬火包括直接淬火、喷雾淬火、热淬火、分级淬火、局部淬火、喷射淬火和限时淬火。
Influence of mould releasing time of direct quenching of ZL110 alloy chain saw piston making use of remanent heat after casting on quenching effect and strengthening of artificial aging were studied. 探讨了ZL110油锯活塞铸造余热淬火的脱模时间对铸淬效果及人工时效强化规律的影响。
Time duration of up to ten seconds was estimated to be necessary for the quenching of ringwoodite. 陨石中有利于林伍德石保存的淬火时间仅为数秒到十多秒。
Estimate of Quenching Time and Quenching Rate for Semilinear Parabolic System 半线性抛物方程组的猝灭时间与猝灭速率估计
By analyzing temperature field, the forming process of the hardened layer was studied. It was pointed out that hardening holding time is an important factor in the course of forming hardened layer by plasma surface quenching which belongs to short time quenching. 通过分析温度场,对等离子表面淬火相变硬化层的形成过程进行了研究,提出等离子表面淬火属于短时淬火,在硬化层的形成过程中,淬硬保持时间是重要的影响因素。
At the same time, in the heat affected zone, the hardened layer obtained from quenching origin-ally will disappear, yielding a low hardness zone about 100 mm wide. This will affect the quality and life of the continuously welded rails. 同时焊缝热影响区内,原淬硬层将消失,产生宽度为100mm左右的低硬度区,这将影响无缝线路的质量和使用寿命。
Surface hardness of bearing steet decreased after quenching, because temperature traverse quickly in cooling-off The case happens easily when the time of steam film is longer and the temperature of quenching oil is lower. 轴承钢油淬后往往发生表面硬度偏低,其原因是因为冷却途中冷速急剧变化引起的,特别是在蒸汽膜期长,特征温度低的油中淬火时更易发生。
The effective approaches for improving ignition performance are to improve quality of fuel sprays, to sustain optimum spark time, to keep the electric pole distance a little more than quenching distance and to pre-heat starting fuel etc. 提高雾化质量,保持最佳火花持续时间,电极间距稍大于冷熄距离。以及对起动燃油加温等,都是改善点火性能的有效途径。
Controlling the time of the reaction and quenching with ketones, a series of new stereospecific allyl alcohols were obtained. 控制反应时间,用酮类淬息方法分别得到了一系列新的专一立体构型的烯丙醇衍生物。
The high plasticity opportunity is corrected in time when the tissue is changed to fail to utilize quenching in the course. 未能利用淬火过程中组织转变时高塑性时机及时矫正。
The time of maximum fluorescent quenching and the half time of fluorescent quenching were significantly prolonged ( P < 0.01). 最大荧光淬灭时间和半数荧光淬灭时间非常显著延长(P<0.01)。
Principles and Applications of the Immersion Time Quenching System in Batch and Continuous Processes 控时浸淬系统(ITQS)原理及在周期式和连续式生产中的应用
Change the temperature and contact time of copper with oxidized thiamine did not affect the quenching property of copper. 氧化的硫胺有强的燐光,再加入铜则燐光下降,且不受反应温度、时间的影响,说明燐光下降是铜的猝灭作用。
This paper discusses the real time detection and control of technological parameters for mid frequency quenching machine by using a monolithic microcomputer with a multiplex digital system and presents the design principles of the control and detection system. 本文应用MCs&8031单片微机附多路数字系统,解决了中频淬火机床对工艺参数的实时控制与监测问题。文中介绍了中频淬火工艺参数监测与控制系统的设计原理。
Hardening Holding Time and Hardness Distribution of Hardened Layer by Plasma Surface Quenching 等离子表面淬火的淬硬保持时间与硬化层的硬度分布
The study shows that, control of the optimal sintering time and use of oil quenching can change the boundary morphology of the wolfram carbide phase from edge form into smooth form, as a result the properties of the hard metal can be improved. 使用最佳烧结时间和采用油中淬火冷却方式,可以使原棱角形的碳化钨晶粒变为圆滑的晶粒,从而可以改善硬质合金的性能。
The influence of zero time holding quenching temperature on the 20 MnV steel's strength and hardness 零保温淬火温度对20MnV钢强度和硬度的影响
Study of the Calculating Method of Cooling Time for Interrupted Quenching 双介质淬火冷却时间计算方法的研究
The quenching constant increased with increasing temperature, and the fluorescence life time decreased after adding sDNA, showing that the fluorescence quenching belongs to dynamic quenching. 猝灭常数随温度的升高而增大,且加入sDNA后荧光寿命变短并结合荧光光谱及荧光寿命讨论了荧光猝灭的类型是动态猝灭。
It is noted that the quenching process of the current lead can be divided into two stages. The operating time for protecting the quenching current lead should be smaller than the first stage time. 仿真结果分析表明:电流引线失超过程可分为两个阶段,电流引线的失超保护动作时间应小于第一阶段时间。
Among them, the alloying elements have greater impact on austenitizing temperature, then affect the coating thickness. Carbon content and processing time have not obvious effect on coating thickness. Processing temperature should be consistent with the quenching temperature of steel. 其中,合金元素对钢材奥氏体化温度影响较大,从而影响盐浴处理温度与覆层厚度;碳含量对覆层厚度的影响不明显;处理温度应与钢材淬火温度基本一致;处理时间影响不大。
We concentrate mainly on the possibility of controlling by suitable way the initial data, so as to the only occurrence of the singularity of boundary nonlinearity at finite time ( i.e. boundary quenching). 我们主要讨论了通过适当控制初始条件,使得只有边界的非线性项的奇性才会在有限时刻出现的可能性(亦即边界quenching)。
At the same tempering time and tempering temperature, as the quenching temperature rise, the corrosion resistance of the samples decreased. But under quenched at 930 ° C for 30 minutes, the best comprehensive performance can been obtained. 随着淬火温度的增加,相同的回火温度与回火时间的试样的力学性能在930°C淬火时达到最高,而耐蚀性能则不断降低。
Steady state and time resolved fluorescence spectroscopy suggested that the quenching mechanism of 2-Mercaptobenzimidazole – HSA interaction was a dynamic quenching procedure. 稳态和时间分辨荧光光谱结果表明2-巯基苯并咪唑与HSA的相互作用机理为动态淬灭过程。
Moreover, for the second case, a natural continuation problem after the quenching time for the non-simultaneous quenching is found, then we obtain that the solution of this equation is incomplete quenching. 对第二类具有对数奇异边界项的热方程找到了解在发生非同时淬灭后解的一个延拓,从而得到该方程组的解是不完全淬灭的。
By analyzing the changes of absorption spectra at different delay time and the quenching rate constants, the mechanism of reactions can be obtained. 通过吸收光谱随光激发的延迟时间变化和测得的反应动力学常数可以推测反应的机理。