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reciprocating
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    The finely dispersed precipitation of a ternary phase I-Mg3YZn6 quasicrystal appeared during reciprocating extrusion and its effect on the mechanical properties were investigated with optical microscope(OM),transmission electronic microscope(TEM),X-ray diffraction(XRD) and differential thermal analysis(DTA).
    用OM,TEM,XRD及DTA研究了往复挤压过程中准晶相I-Mg3YZn6弥散析出及对力学性能的影响。
短句来源
    The results showed that reciprocating extrusion was helpful to the welding at melt-spinning Mg92.5Zn6.4Y1.1 ribbons and obtaining a dense and uniform alloy with high strength and ductility.
    研究表明,往复挤压有利于快速凝固Mg92.5Zn6.4Y1.1合金薄带的焊合,获得组织致密、均匀、高强韧合金。
短句来源
    The microstructure after reciprocating extrusion for 2 passes and a forward extrusion consists of α-Mg and a quasicrystal I-Mg3YZn6 phase,and few nano-crystalline precipitated phases.
    往复挤压2道次,相组成为-αMg和准晶I-Mg3YZn6,脱溶析出纳米准晶相较少;
短句来源
    The main reasons for why reciprocating extrusion can improve the tensile properties were fine-grained strengthening and precipitation strengthening.
    往复挤压提高材料的拉伸性能,其主要原因是细晶强化和析出强化。
短句来源
    DESIGN AND APPLICATION OF COAL COMBUSTION ON RECIPROCATING GRATE OF ALUMINIUM SMELTING FURNACE
    往复炉排燃煤熔铝炉的设计与应用
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    However,the microstructure after reciprocating extrusion for 4 passes and a forward extrusion consists of α-Mg,I-Mg3YZn6 and MgZn phase,and the nano-crystal precipitated I-Mg3YZn6 and MgZn phases were too much.
    4道次相组成为-αMg和准晶I-Mg3YZn6及MgZn相,脱溶弥散析出的纳米I-Mg3YZn6准晶相及MgZn相较多。
短句来源
    Analysis of Statistic Velocity Properties for Honing Machine Spindle Reciprocating Motion
    珩磨机主轴往复运动静态速度特性仿真分析
短句来源
    Obvious improvement of down point dynamic accuracy from ±5μm to within ±2μm has been obtained by reducing mass of reciprocating motion components and symmetric arrangement of complete dynamic balance device of crank link mechanism based on analysis of poor accuracy causes and practical conditions of poor dynamic accuracy of down dead point of Model J75G 60 600kN high speed precision press.
    根据J75G 60型 60 0kN高速精密压力机在高速冲压条件下下死点动态精度超差的实际 ,分析了精度超差的原因 ,采取了相应的措施 ,使下死点动态精度由± 5μm提高到± 2 μm以内 ,效果明显。
短句来源
    In dry-friction reciprocating sliding motion,the friction and wear behavior of AZ91D magnesium alloy fabricated with conventional casting and thixoforming casting,which is counterposed against GCr15 steel,were studied.
    研究了传统铸造和触变成形AZ91D镁合金在干摩擦往复运动条件下与GCr15钢对磨时的摩擦磨损行为.
短句来源
    The Rendering of a Long Stroke Reciprocating Combined Mechanism
    实现长行程往复运动的一种组合机构
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  reciprocating
At the end of the tube there is a unit such as a sliding valve, compressor, reciprocating pump, or turbine that changes the flow rate.
      
A built-in liquid cooling system for a CO2 laser with a reciprocating motion of the heat carrier is proposed.
      
Changes in the contents of these elements in the regions of cryptaffinity taxa are intricate, suggesting a reciprocating character for their accumulation.
      
The effect of low-frequency (>amp;lt;100 Hz) pulses initiated by gas-pulse and reciprocating pulsators on interfacial heat and mass transfer in a monodispersed mixture is analyzed numerically.
      
Sodium ions can traverse these tunnels and execute a reciprocating motion in them at an approximately thermal velocity.
      
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In this paper we introduced a new technique of heat treatment for producing valve spring wires. Relying on our own efforts, we have designed and built a continuous, operative and productive line. According to the strengthening and toughening mechanism, on this treating equipment weadopted series of new technigues of heat treatment, such as, rapid austenitizing treatments for the refinement of the prior austenite grain size, martempering, rapid tempering, ete.The results of experiments have proved that new kinds...

In this paper we introduced a new technique of heat treatment for producing valve spring wires. Relying on our own efforts, we have designed and built a continuous, operative and productive line. According to the strengthening and toughening mechanism, on this treating equipment weadopted series of new technigues of heat treatment, such as, rapid austenitizing treatments for the refinement of the prior austenite grain size, martempering, rapid tempering, ete.The results of experiments have proved that new kinds of higher qualitative oil-tempering wire are obtained. It also provided a new process of manufacture of various kinds of important springs for our mechanical industry. And then, it may achieve greater, faster, better and more economical resutts in producing springs than the conventional process.The valve springs, made by the new steel wires, has undergone a long period of time for operations in compressors. The results show that the life of springs in operations is increased from the original level to many times, even tens times. It can approch the international level or come up to advanced world standards(the number of times of reciprocating motion may be approched 1.18~4.91×10~8).

本文介绍了生产阀簧钢丝的一套热处理新技术。攻关组自行设计、制造了一条连续运转的油淬火阀簧钢丝的生产线,根据钢的强韧化机制,采用了超细晶粗处理,恒温热处理及快速回火等新技术,研制成功了一种高质量的油淬火阀门弹簧钢丝;为我国机械工业制造各种重要的弹簧(例如各种气阀弹簧等)提供了一条多、快、好、省的新途径;通过几年的装机试验与试生产表明:由新型钢丝制成的阀簧的使用寿命从原来的基础上提高了几倍到几十倍,接近或达到了目前世界同类产品的水平(即弹簧工作时往复动作次数达1.18~4.91×10~6)。

The revolving mechanism, the reciprocating structure, the feeding device, fixtures, honing head and means to control dimensions, all these factors that affect the honing accuracy of a honing machine have been thoroughly disussed for the benefit of design consideration.

本文就研磨机床中旋转运动机构、往复运动机构,进给运动机构以及尺寸控制方式、夹具、珩磨头等对珩孔精度的影响进行了探讨,以供高精度小孔珩磨机床设计参考。

The article discusses the dynamic stiffness and working efficiency of a vertical conical wheel type gear grinder, the relation between the static working condition and the stiffness P' of the balancing spring which is mounted in the wheel reciprocating sinuous mechanism Explains the calculating method of value P' Which satisfies the working condition.

本文讨论了立式锥面砂轮磨齿机动刚度、工作效率和静态工作条件与砂轮往复正弦机构平衡弹簧刚度 P’值的关系,确定了 P’值应满足的工作条件及计算 P’值的方法。

 
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