1) low/high temperature tempering
低高温回火
2) Low temperature tempering
低温回火
1.
The microstructure and mechanical properties of 1 250 MPa grade new type bainite wear resistance steel plate were studied as hot rolling and low temperature tempering.
研究了热轧、低温回火状态1 250 MPa级新型贝氏体耐磨钢板的组织和力学性能,测试了埋弧焊和CO2焊焊接接头的力学和机械加工性能。
2.
Throught several powerful shot peening contrast tests of carbonitriding gears,the effect of powerful shot peening with different parameter,and the influence of low temperature tempering to contact fatigue strength of bearing surface were researched.
通过对碳氮共渗齿轮试片进行了多次强力喷丸试验 ,研究了不同喷丸参数下的强力喷丸的效果及喷丸后的低温回火处理对提高齿轮试片表面接触疲劳强度的影响。
3.
A kind of low temperature tempering treatment is designed to increase the hardness of 50CrV steel.
设计了低温回火工艺 ,使 5 0CrV钢的硬度提高 。
3) low tempering
低温回火
1.
The effect of different low tempering temperatures on the strength and toughness,wear resistance of carburized layers in 20CrMnMo and 17Cr2Ni2Mo steels was studied.
研究了不同低温回火温度对２０ＣｒＭｎＭｏ钢和１７Ｃｒ２Ｎｉ２Ｍｏ钢渗碳层强韧性和耐磨性的影响。
2.
The effects of sub-temperature quenching and low tempering on the quenched 40Cr steel and annealed 40Cr steel were studied.
研究了完全淬火态40Cr和退火态40Cr进行亚温淬火和低温回火后的组织和性能,确立了920℃淬火+790℃淬火+200℃回火最佳亚温淬火工艺,与常规淬火及低温回火相比较强度bσ提高9%,塑性δ提高16%,韧性αk提高25%,硬度提高6%,磨损质量损耗下降67%。
4) high-temperature tempering
高温回火
1.
Furthermore,the best grain refinement heat treatment process for this material is twice sub-temperature quenching+high-temperature tempering process.
指出该材料最佳的晶粒细化热处理工艺是:两次亚温淬火+高温回火工艺。
2.
It is learned that the theory of removing sclerosis of residual austenite after transformation and theory of carbide deposition has different effect during different time in high-temperature tempering.
对18Cr2Ni4WA钢渗碳层中残余奥氏体在高温回火中转变机制进行研究,得知相变硬化消除理论和碳化物析出理论在高温回火的不同时间中的不同作用,提出：680℃×3h空冷回火,650℃×2h空冷回火,810℃×15min空冷淬火,180℃×1。
5) high temperature tempering
高温回火
1.
By means of three times procssing at high temperature tempering,the coarse nonequilibrium structure of 85Cr 2Mn 2Mo steel recrystallizes absolutly ,the austenite grain was effectively refined and structure heredity was cut.
本文在研究85Cr2Mn2Mo钢的组织遗传的基础上,着重研究了该钢组织遗传的消除,文中采用三次高温回火工艺,使85Cr2Mn2Mo钢的粗大的非平衡组织发生充分的再结晶,有效地细化了奥氏体晶粒,切断了组织遗传。
2.
The high temperature tempering can eliminate the residual stress caused by quenching, this can avoids the deformation in the following electric machining; after ultralow-temperature disposal process, the wear resistance of die increases 2 to 3 times, so its using time is consumedly prolonged.
高温回火可消除模具淬火时产生的残余应力,避免模具在后续的电加工中产生变形;而采用超低温工艺处理后,模具的耐磨性可提高2～3倍,延长了模具的使用寿命。
3.
In this paper,the relationships of structures and properties of 10Cr9MolVNbNsteel austenization normalizing at different temperature and time and dustenizationnormalizing and high temperature tempering following aging at 580 - 660℃ for zero to5000h were studied by means of transmission electron microscope (TEM) and scanningelectron microscope (SEM).
本文采用透射电镜、扫描电镜等手段研究了10Cr9Mol VNbN钢不同温度和时间奥氏体化正火后以及正火高温回火后再经580～660℃时效0～5000h的组织和性能的关系。
6) high-temper steel
高温回火钢
补充资料：低膨胀高温合金
分子式：
CAS号：
性质：兼有低膨胀合金和高温合金特性的合金。典型的低膨胀合金是因瓦合金，其膨胀系数低，强度也低，高温强度更低。而低膨胀高温合金则在保持低膨胀系数的同时具有高强度，尤其是高温强度。如Incoloy 903合金膨胀系数低，从室温到650℃，平均膨胀系数为10.3×10-6/℃，弹性模量低且基本恒定，室温σb为1310MPa，650℃σb为1000MPa，达到一般高温合金的强度水平，但膨胀系数低一半。该合金有良好的冷热疲劳性能，由于不含铬，抗氧化性较差，但具有较高抗氢脆能力。另外还有低铝高铌的Incoloy 907合金和高硅的Incoloy 909合金，构成低膨胀高温合金系列。这种合金是用于高性能航空涡轮发动机主动间隙控制技术的关键材料，制作高压压气机机匣、涡轮内外环及封严环等部件。
CAS号：
性质：兼有低膨胀合金和高温合金特性的合金。典型的低膨胀合金是因瓦合金，其膨胀系数低，强度也低，高温强度更低。而低膨胀高温合金则在保持低膨胀系数的同时具有高强度，尤其是高温强度。如Incoloy 903合金膨胀系数低，从室温到650℃，平均膨胀系数为10.3×10-6/℃，弹性模量低且基本恒定，室温σb为1310MPa，650℃σb为1000MPa，达到一般高温合金的强度水平，但膨胀系数低一半。该合金有良好的冷热疲劳性能，由于不含铬，抗氧化性较差，但具有较高抗氢脆能力。另外还有低铝高铌的Incoloy 907合金和高硅的Incoloy 909合金，构成低膨胀高温合金系列。这种合金是用于高性能航空涡轮发动机主动间隙控制技术的关键材料，制作高压压气机机匣、涡轮内外环及封严环等部件。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条