1)high frequency quenching高频淬火
1.The result shows that the coarse-grain microstructure before high frequency quenching and over-deep hardened case during hardening lead to too high tensile stress and cause the samples cracked.结果表明 ,开裂原因是由于高频淬火前粗大的显微组织和淬火时淬硬层过深 ,导致拉应力过大而引
2.The probability and main effect factors of superplastic welding of structural and tool steel after partly high frequency quenching have been examined.探讨了结构钢与工具钢待焊接区表面高频淬火后超塑焊接的可行性及影响因素。
3.According to the technical requirements of the heat treatment of chains and chain axlesa,n automatic high frequency quenching machine for chain axles is designed.根据锯链链轴热处理的技术要求,设计出全自动链轴高频淬火机床。
英文短句/例句
1.This manipulator has already been used in the automatic feeding and unloading material device of the production line.该机械手已用于高频淬火生产线的自动上下料装置中。
2.complete equipment for high frequency induction quenching高频感应淬火成套设备
3.Ultrasonic Frequency Quenching for Guideway Face of Lathe Bed by Self-made Quenching Car自制淬火车实现床身导轨面超音频淬火
4.The ultrasonic freguency quenched guideways have a good wear-resistance.床身导轨经超音频淬火处理，经久耐用。
5.The Research of Mid-freguency Quencher ANFIS Control System;中频淬火模糊神经网络控制系统研究
6.Design and Implement of Mid-frequency Quencher Fuzzy Control System;中频淬火模糊控制系统的设计与实现
7.Digital PID Control in the Application of Dual-frequency Hardening Machine Analysis数字PID控制在双频淬火机中应用分析
8.The Study of Power System for Mid-Frequency Quencher Based on Fuzzy Control;基于模糊控制技术的中频淬火电源的研究
9.The Measures of Preventing Intermediate Frequency Quenching Cracks in Turnings of ZH110;ZH110型汽车转向节中频淬火防止开裂的措施
10.Improvement on Intermediate Frequency Induction Quenching Process of 6CrW2Si Steel Coil Head Scraper6CrW2Si钢卷头刮刀局部中频感应淬火工艺改进
11.The Influence of Quenching Medium on Grinding-ball Properties of High Chromium Cast Iron淬火介质对高铬铸铁磨球性能的影响
12.Water Quenching and Tempering Technology Research of 1000MPa Ultra-High Strength Dual-Phase Steel;1000MPa超高强双相钢水淬及回火工艺研究
13.Investigation of Compression Mechanic Behavior of HSS in Quenching and Annealing高速钢淬火回火状态的压缩力学性能研究
14.This company endeavors to hardening, normalizing, tempering, high and medium temperature quenching, mesh belt furnace quenching, cementing, time effective freezing and high temperature treatment etc.本公司是一家致力于从事调质、火、火、中温淬火、带炉淬火、碳、效冰冷及其高温热处理的厂家。
15.Jet Quenching Effects of High Energy Nucleus-Nucleus Collisions in RHIC;RHIC高能核—核碰撞实验中的喷注淬火效应
16.Study on Dynamic Characteristic of Cutting Process and Cutting Parameters of High Speed Dry Turning Hardened Steel;淬火钢高速车削过程动态特性及加工参数研究
17.Study of Micro-alloying and Isothermal Quench of Steel Shots With High Toughness高韧性钢丸的微合金化及等温淬火工艺研究
18.Whole Quenching in Solution of Tri-nitrate in Water for Butt Welded High Speed Steel Tap对焊高速钢丝锥的三硝水溶液整体淬火
相关短句/例句
high frequency induction hardening高频淬火
1.The principle of this method was discussed,an effective method was found for controlling the distortion of a sleeve fork like produce after high frequency induction hardening.进行了套管叉高频淬火工艺试验 ,解决了该零件的淬火畸变问题。
2.The technological parameter of high frequency induction hardening is determined by testing over and over again,and the difficult technological problem for high frequency induction hardening of the slippery seats is overcomed.根据滑座高频淬火表面结构特点 ,设计专用感应器并加导磁体来提高感应器电效率及解决尖角效应问题。
3)high frequency hardening高频淬火
1.It was shown that needle-shaped martensite hardened case could be obtained in iron base PM materials by high frequency hardening,as a result,the hardness could be remarkably increased and wear resistance could be remarkably improv.结果表明,经高频淬火后,在该铁基粉末冶金材料表面得到了针状马氏体相变硬化层,材料表面硬度显著提高,因而耐磨性也得到明显提高,同时还扩大了铁基粉末冶金材料的应用载荷范围。
2.Analysis on crack of starting ring gears caused by high frequency hardening is carried out on the starting ring gear of heavy-duty high-speed diesel engine of 150 series.以150系列大功率高速柴油机的飞轮起动齿圈高频淬火为研究对象,分析了起动齿圈原高频淬火裂纹的产生原因,找到了有效防止其高频淬火裂纹的工艺方法。
3.The viewpoint that the higher residual compressive stress on the surface of parts, which is caused by high frequency hardening, is helpful to improve the abradability of parts has for a long been believed by technicians and written into technical litera tures.针对长期以来一些著作和许多技术人员所认定的“零件表面在高频淬火时产生较高的残余压应力，对提高其耐磨性有利”的观点进行了分析，认为这种观点基本是不正确的。
4)induction hardening高频淬火
1.The influence of shot peening intensity on surface quality and residual stress field of the 1Cr12Ni3Mo2VN steel samples in local induction hardening state was investigated under different processing parameters.采用不同的喷丸工艺,分析了喷丸强度对1Cr12Ni3Mo2VN钢局部高频淬火试样的表面质量与残余应力沿层深变化的影响。
5)high frequency quench高频淬火
1.Based on main chain spocket of shearers, the paper describes special requirement of reasonable high frequency quench, quench technology, structure and technology parameter of the inductor.根据主链轮的受力,确定了合理的高频淬火技术要求、淬火工艺、感应器的结构和工艺参数。
6)high-frequency hardening高频淬火
1.The thesis discusses the high-frequency hardening technological of the series 165 diesel engine flywheel.以165系列柴油机飞轮为研究对象,在分析飞轮高频淬火原工艺产生裂纹的主要原因的基础上,提出了几种相应的工艺改进措施,使合格品率得到明显的提高。
延伸阅读
淬火裂纹和非淬火裂纹的特征及实例分析淬火裂纹是指在淬火过程中或在淬火后的室温放置过程中产生的裂纹。后者又叫时效裂纹。造成淬火开裂的原因很多，在分析淬火裂纹时，应根据裂纹特征加以区分。 一、淬火裂纹的特征 在淬火过程中，当淬火产生的巨大应力大于材料本身的强度时，便会导致裂纹产生。淬火裂纹往往是在马氏体转变开始进行后不久产生的，裂纹的分布则没有一定的规律，但一般容易在工件的棱角槽口、截面突变处形成。 在显微镜下观察到的淬火开裂，可能是沿晶开裂，也可能是穿晶开裂；有的呈放射状，也有的呈单独线条状或呈网状。 因在马氏体转变区的冷却过快而引起的淬火裂纹，往往是穿晶分布，而且裂纹较直，周围没有分枝的小裂纹。 因淬火加热温度过高而引起的淬火裂纹，都是沿晶分布，裂纹尾端尖细，并呈现过热特征：结构钢中可观察到粗针状马氏体；工具钢中可观察到共晶或角状碳化物。 表面脱碳的高碳钢工件，淬火后容易形成网状裂纹。这是因为，表面脱碳层在淬火冷却时的体积胀大比未脱碳的心部小，表面材料受心部膨胀的作用而被拉裂呈网状。 二、非淬火裂纹的特征 淬火后发生的裂纹，不一定都是淬火所造成的，一般可根据下面的特征来区分。 淬火后发现的裂纹，如果裂纹两侧有氧化脱碳现象，则可以肯定裂纹在淬火之前就已经存在。淬火冷却过程中，只有当马氏体转变量达到一定数量时，裂纹才有可能形成。与此相对应的温度，大约在250℃以下。在这样的低温下，即使产生了裂纹，裂纹两侧也不会发生脱碳和出现明显氧化。所以，有氧化脱碳现象的裂纹是非淬火裂纹。 如果裂纹在淬火前已经存在，又不与表面相通，这样的内部裂纹虽不会产生氧化脱碳，但裂纹的线条显得柔软，尾端圆秃，也容易与淬火裂纹的线条刚健有力，尾端尖细的特征区别开来。 三、实例分析 实例一： 40Cr钢制成的转子轴，经锻造、淬火后发现裂纹。裂纹两侧有氧化迹象，经金相检验，裂纹两侧存在脱碳层，而且裂纹两侧的铁素体呈较大的柱状晶粒，其晶界与裂纹大致垂直。结论：裂纹是在锻造时形成的非淬火裂纹。 当工件在锻造过程中形成裂纹时，淬火加热即引起裂纹两侧氧化脱碳。随着脱碳过程的进行，裂纹两侧的碳含量降低，铁索体晶粒开始生核。当沿裂纹两侧生核的铁素体晶粒长大到彼此接触后，便向离裂纹两侧较远的基体方向生长。由于裂纹两侧在脱碳过程中碳浓度的下降，也是由裂纹的开口部位向内部发展，因而为铁素体晶粒的不断长大提供了条件，故最终长大为晶界与裂纹相垂直的柱状晶体。
