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| 标签:联轴器 时间: 2014-1-15 点击: 2312 次 |
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| 联轴器调质处理：一般习惯将淬火加高温回火相结合的热处理称为调质处理。调质处理广泛应用于各种重要的结构零件，特别是那些在交变负荷下工作的连杆、螺栓、齿轮及轴类等。调质处理后得到回火索氏体组织，它的机械性能均比相同硬度的正火索氏体组织为优。它的硬度取决于高温回火温度并与钢的回火稳定性和工件截面尺寸有关一般在hb200-350之间。金属热处理是机械制造中的重要工艺之一，与其他加工工艺相比，热处理一般不改变工件的形状和整体的化学成分，而是通过改变工件内部的显微组织，或改变工件表面的化学成分，赋予或改善工件的使用性能。其特点是改善工件的内在质量，而这一般不是肉眼所能看到的，为使金属工件具有所需要的力学性能、物理性能和化学性能，除合理选用材料和各种成形工艺外，热处理工艺往往是必不可少的。
钢铁是机械工业中应用最广的材料，钢铁显微组织复杂，可以通过热处理予以控制，所以钢铁的热处理是金属热处理的主要内容。另外，铝、铜、镁、钛等及其合金也都可以通过热处理改变其力学、物理和化学性能，以获得不同的使用性能。联轴器材质对热处理的要求比较高。
环保，易于操作等优点。对提高零件综合性能有重要影响感应加热就是利用电磁感应在工件内产生涡流而将工件进行加热，工件放到感应器内，感应器一般是输入中频或高频交流电 (300-300000hz或更高)产生交变磁场在工件中产生出同频率的感应电流，这种感应电流在工件的分布是不均匀，在表面强，而在内部很弱，到心部接近于零，利用这个集肤效应，可使工件表面迅速加热，在几秒钟内表面温度上升到800-1000℃，而心部感应加热频率的选择：根据热处理及加热深度的要求选择频率，频率越高加热的深度越浅。
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coupling conditioning treatment: general practice combining high temperature quenching and tempering heat treatment known as conditioning treatment. conditioning treatment is widely used in various important structural parts, especially those who work under alternating load of connecting rod, bolts, gears and shaft, etc. conditioning treatment after get tempered sorbite organization, its mechanical performance than the same hardness of normalizing sorbite for optimal organization. it depends on the high temperature tempering temperature and hardness and tempering stability of steel and the workpiece, the section size is in commonly hb200-350. l heat treatment is one of the important technology in mechanical manufacturing, compared with other processing technology, heat treatment generally does not change the shape of the workpiece and the chemical composition of the whole, but by changing the workpiece internal microstructure, or change the surface chemical composition, or improve the use performance of workpiece. its characteristic is to improve the immanent quality of workpiece, which generally is not visible to the naked eye can see, in order to make the l workpiece with desired mechanical properties, physical properties and chemical properties, in addition to the reasonable choice of materials and various forming process, heat treatment process is often essential.
steel is the most widely used material in mechanical industry, iron and steel complex, microstructure can be achieved by heat treatment to control, so the steel heat treatment is the main content of l heat treatment. in addition, aluminum, copper, magnesium, titanium and its alloys are also can through the heat treatment to change its mechanical, physical and chemical properties, for the use of different performance. coupling material requirement for heat treatment is quite high.
the advantages of environmental protection, easy to operate. parts to improve the comprehensive performance has important influence on induction heating is to use electromagnetic induction to produce eddy current in the workpiece and the workpiece is heated, the workpiece on the sensor, the sensor is generally input frequency or high frequency alternating current (ac) (300-300000 hz or higher) produced in the alternating magnetic field in the workpiece with the frequency of the induced current and the induced current distribution in the workpiece is not uniform, strong on the surface, and in the internal is very weak, the heart is close to zero, use the skin effect, can make the surface heating quickly, within a few seconds surface temperatures to rise to 800-1000 ℃, and the heart of induction heating frequency choice: choose frequency according to the requirement of the heat treatment and heating depth, the higher the frequency heating depth is shallow.
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