高温回火

Then the specimens are fractured by four point bending at a low temperature of -196℃.

先通过对三种材料组织的缺口试样在常温下进行四点弯曲正反弯实验，而后进行高温回火处理。

This paper measured the cooling curve of quenched and tempered heavy forging in temper cooling, and calculated maximum instantaneous elastic stress in cooling below 400℃.

测量了调质大锻件高温回火冷却时的表面及心部冷却曲线、室温及低温冲击韧性，并且计算了400℃以后冷却时最大瞬时弹性热应力。

We try to synthesize the Co doped TiO2 dilute magnetic semiconductor structure via thermal treatments under vacuum environment, and study its magnetic property. The results reveal that during thermal treatments in a vacuum environment, the Co grains may form the oxide phase structure, and lose their magnetic properties.

研究结果发现在真空高温退火过程中，虽然钴粒子会均匀扩散至非晶的二氧化钛薄膜，其铁磁性的行为却因此消失，由实验结果推断在高温回火过程中，钴可能形成反铁磁的氧化物的结构。

Derived from high-temperature tempering tempering sorbite organizations.

高温回火所得组织为回火索氏体。

The effects of high temperature tempering on the microstructure and mechanical property of an ultra-low carbon bainitic steel have been investigated by means of transmission electron microscopy, scanning electron microscopy, micro-hardness measurements and dilatometry.

本研究以穿透式电子显微镜、扫描式电子显微镜、微硬度量测及热膨胀仪分析超低碳变韧铁合金钢高温回火之显微结构及机械性质变化的特性。

This welding wire not only has the inherent properties of metal powder-cored wire, such as with better welding quality, without slag, highly efficiency and conveniently adjusting the alloying elements etc., but also has the advantage of low hardness in as-welded (less than HRC45), good machinability, high hardness in as-aged (more than HRC55) and better wear resistance with customary working procedure on making or repairing equipments such as rollers when reasonable designing the alloys content. The author adequately makes use of the high-tempering in the required stress relieving working procedure. During this working procedure, which causes the hardness of overlaying metal increased by the reason of austenite changes into tempered martensite and more chiefly what is the precipitation of a lot of carbide by secondary hardening simultaneously. This wire can solve the hard rolled problems of some solid wires with higher alloys while it can get over the conflict of existing overlaying materials what are always possesed high hardness with poor machinability or low hardness, good machinability with poor wear resistance. Further, it also can overcome the intenerating phenomena between welding beads and make the external hardness of overlaying metal uniform. Be sure it could be found important meaning in the overlaying of wear-resistant equipments, such as the precise roller.

该焊丝除了具有金属粉型药芯焊丝焊接质量好、无渣、高效率和合金成分可方便调节等固有的优点外，合理的设计粉芯中的合金成分，按通常工序制造与修复轧辊等设备，充分利用必需的消除应力工序的高温回火，堆焊层金属在奥氏体转变为回火马氏体的同时更主要是通过二次硬化析出了大量碳化物导致硬度增加，使得该焊丝还具有焊态硬度低(小于HRC45)、机加工性能好和时效态硬度高(大于HRC55)、耐磨性能好等优点，解决了某些高合金实芯焊丝轧制困难的问题，同时克服了现行堆焊材料硬度高、加工性能差或者硬度低、加工性能好、耐磨性差的矛盾，并能克服焊道之间的软化现象，使堆焊表面硬度较为均匀，对耐磨件，譬如精轧辊的堆焊具有重要意义。

For hard to soften some of the alloy annealed in the quenching after the regular use of high-temperature tempering, so that the appropriate aggregation carbide steel, will reduce the hardness to cut processing of caliche.

对于退火难以软化的某些合金钢，在淬火后常采用高温回火，使钢中碳化物适当聚集，将硬度降低，以利切削加工。

The study on improving tough hardness of 65Nb steel which is used for new type cold working mould has been made.The result shows that 65Nb steel can achieve high tough hardness when it is spheroidized after full forging in fore heat treatment and is high-tempered for three times after high heat quenching in final heat treatment.

对新型冷作模具用钢65Nb 进行了提高强韧性的工艺研究，结果表明：65Nb 钢预先热处理采用经充分锻造后球化退火，最终热处理采用高温加热淬火后三次高温回火可获得高的强韧性。

It 's mainly used in steel tubes of high 's mainly used in steel tubes of high temperature superheaters with surface temperature temperature superheaters with surface temperature ≤625℃ and high ≤625℃ and high temperature reheaters with surface temperature temperature reheaters with surface temperature ≤650℃, and high ≤650℃, and high temperature headers and steam pipes with surface temperature temperature headers and steam pipes with surface temperature ≤600℃.

主要主要用于壁温≤625℃的高温过热器、壁温≤650℃的高温再热器钢管，以及壁温≤600℃的高温集箱温≤625℃的高温过热器、壁温≤650℃的高温再热器钢管，以及壁温≤600℃的高温集箱和蒸汽管道，国内外已逐步用该钢代替和蒸汽管道，国内外已逐步用该钢代替T22、F12、TP304L、TP347H等，但该钢焊接性能T22、F12、TP304L、TP347H等，但该钢焊接性能也比较差，容易产生焊接冷裂纹，所以同样要求有合适的预热温度和及时进行焊后回火处也比较差，容易产生焊接冷裂纹，所以同样要求有合适的预热温度和及时进行焊后回火处理。

This special heat-treatment ensures full bearing performance and prevents the set screws from loosening during operation as the set screws can be tightened hard enough without causing broken inner ring set screw hole.

内圈螺钉孔周围经局部高温回火后，轴承获得更好的性能，可防止螺钉在轴承工作期间松脱，同时螺钉拧得紧也不会导致内圈爆裂。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。