回火

The PCVD plasma impregnation process of hot forging die includes surface deoiling, polishing, supersonic cleaning in acetone and alcohol dewatering of the die after quenching at 1070 deg.c and tempering at 530 deg.c; plasma nitriding in a industrial PCVD vacuum furnace; and PCVD plating.

本发明公开了一种精密叶片热锻模具的PCVD等离子体渗镀复合强化方法，将经1070℃淬火，530℃回火后的叶片模具(HRC＝43-50)经表面除油、抛光后浸入丙酮中超声波清洗，酒精脱水；然后放入工业型PCVD真空炉内进行等离子体渗氮和PCVD镀膜处理。

In the experiment, the quenching and anneal are used to modify the aluminium alloy anodes.

在实验中，采用了退火、回火等热处理工艺对铝合金电极进行了改性。

Results of EBSD show that most of the reversed austenite in the steel treated by QT distribute along the grain boundary, but in the steel treated by two--phase region heat treatment the austenites distribute uniformly along all kinds of boundaries, especially also along the lath martensite boundary in the grain, so the cryogenic toughness can be also improved even the amount of austenitic is lower than that in the steel treated by QT process.

EBSD结果则表明：经两相区处理，回转奥氏体不仅在晶界和板条束界形成，也在晶内的板条界上形成，因此即便在其含量低于淬火+回火处理的条件下， 9Ni钢的低温韧性也有明显提高，证明回转奥氏体的分布也是影响9Ni钢低温韧性的一个主要因素。

The microstructure, mechanical properties and wear resistance of new type bainite steel were studied.

研究了新型贝氏体钢钎头材料的组织、力学性能及耐磨性能，结果表明，新型贝氏体钢钎头材料组织由贝氏体铁素体和奥氏体组成，具有良好的强韧性、耐磨性和较高的回火抗力。

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。

Two separate tempering treatments at 670 ℃ is the most effective way to eliminate residual austenite in the carburized layer of steel.

该钢渗碳后于670℃回火两次是消除渗碳层中残余奥氏体的最有效方法。

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。

Wear resistance and wear mechanism of carburized layer of meta-bainitic steel in pin-on-disk abrasive wear and impact abrasive wear were investigated.

研究了准贝氏体钢销盘磨料磨损和冲击磨料磨损的耐磨性和磨损机制，确定了回火温度对耐磨性的影响，探讨了残余奥氏体的机械稳定性及其对耐磨性的作用。

The final processes of conching and tempering are essential in the process: they control the texture and the viscosity of the chocolate before it can be used in the manufacturing process.

生产程序中最后的碾磨和回火工艺至关重要：它们控制着巧克力的质地和粘性，其后才能投入制作。

D. Observe flash back color , when reaching the tool edge department in appropriate color , make it anxious and cold.

观察回火色，当恰当的颜色达到工具刃部时，将它急冷。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。