探讨了灰铸铁激光表面熔化处理表面的质量。
This paper deals with the influence of laser beam on the width and depth of melting zona and surface smoothness.
本文概述激光表面熔化工艺的基本原理及其应用。
This paper reviews basic principles and applications of laser surface melting.
体熔化与表面熔化的不同发生机制导致体熔点高于热力学熔点。
The different mechanisms of bulk melting and surface melting induce the thermal melting point lower than the bulking melting point.
结果表明，表面熔化处理后的硬化层的硬度梯度平缓，耐磨性高。
The results showed that the hardening layer has better hardness gradient and high wear resistance.
为了充分了解激光熔化机理，对表面熔化进行模拟研究很有必要。
In order to understand the laser melting process, investigations into modelling of heating mechanism initiating the laser melting are necessary.
要使这些物质表面熔化或变黑，至少需要每平方厘米有60到70卡的热能。
At least 60 to 70 calories per square centimeter of thermal energy are required to produce surface melting or darkening.
对近年来人们十分关注的表面熔化问题，从理论和实验上进行了综述性讨论。
The theory and experiments on surface melting of solids which has attracted considerable interest are reviewed.
电弧烧伤。由于电极(含接地极)与管子表面之间起弧而产生的局部表面熔化点。
Arc Burns. Localized points of surface melting caused by arcing between electrodes or ground and pipe surface.
工具盘上的轮齿与工件间的脉冲放电可使工件表面熔化甚至汽化，从而达到加工蚀除金属的目的。
It points out that the pulse discharging between tooth and work pieces on tool plate can make the surface to melt or even vaporize, thus to process the eclipse divided by metals.
结果表明，等离子表面冶金合金化涂层对基材具有良好的润湿性，基材表面熔化区的形成使得涂层与基材实现了完全的冶金结合。
Results indicated that plasma surface metallurgical coating of Fe-Cr-Ni-B-Si had well wettability, and metallurgical bonding was obtained between coating and substrate.
如果玻璃保持足够的温度，它就会在熔化的锡中流动，直到顶部表面也变得平整、水平，与底部表面完全平行。
If the glass were kept hot enough, it would flow over the molten tin until the top surface was also flat, horizontal and perfectly parallel to the bottom surface.
每块阿伦德碎片样本都覆盖着一层黑色的、玻璃样的熔壳，这层熔壳是在它们的外表面与地球大气层摩擦减速中熔化形成的。
Individual specimens of Allende are covered with a black, glassy crust that formed when their exteriors melted as they were slowed by Earth's atmosphere.
四者中拥有最高温度的是金星，而原因很简单——由于有稠密的大气层，金星从太阳吸收的热量无法“逃”到太空中，它的表面温度高达500摄氏度——足以使铅熔化。
Due to its dense atmosphere, heat that reaches Venus from the sun can't escape into space. Surface temperatures can reach around 500 degrees Celsius -- hot enough to melt lead!
当燃料棒温度上升时，它们表面的锆会破裂开来，在内部释放出气态的放射性碘，也许甚至会导致铀熔化并释放出更多的放射性物质。
As the rods heat up, their zirconium cladding can rupture, which releases gaseous radioactive iodine inside, and may even cause the uranium to melt and release much more radioactive material.
最后，这块陨石表面还有金属熔化的块状斑点，可能是降落过程中的高温使金属熔化在石头表面。
Finally, the surface of this meteorite melted lump of metal spots there may be landed during the metal melting temperature in stone surface.
试验表明：通过调节激光器的输出功率、光斑直径和扫描速度可以方便地控制熔化层深度和表面平整度。
The experimental result shows that the depth of hardened zone and smoothness of surface can be controlled conveniently by varying the power output beam diameter and scanning rate of laser light.
它表面的一小层熔化了形成了这种簿簿的一层玻璃质在外面。
So a tiny bit of the outside is melted and is left with this really thin glass on the outside.
本文从理论上分析了激光熔化表面的开裂原因。
The reason for cracking of the metal surface melted by laser was analyzed theoretically.
类似于甲烷的碳前体可吸热蒸发，熔化的前体和具有催化活性的基底相反应并在表面形成石墨烯。
A carbon precursor like methane can be vaporized using heat where the melted precursor reacts with a catalytically active substrate to form graphene on the surface.
另外，管壁内表面过热熔化金属掉入阻抗器，会降低阻抗器的寿命和性能。
Furthermore if internal surface is over heat, melt metal shall drop into impedor and shall low the life cycle and properties of impedor.
根据此理论，一颗大流星落在月球上所产生的碰撞力就会使月球表面上的岩石熔化。
According to this theory, a large meteor hitting the moon would melt the surface rock by the force of the collision.
激光熔覆是利用激光辐射使熔覆材料和基体表面同时熔化并快速凝固、从而显著改善基体材料物理性能的一种新的工艺方法。
Laser cladding is a new surface strengthening technology which USES laser radiation to let coating materials and the surface of substrate melt simultaneous.
假体的快速原型蜡当时浸入熔化底板蜡产生的内部和外部表面的蜡层，记录其大小和厚度。
The rapid prototyping wax prosthesis was then dipped into melted base-plate wax which generated a layer of wax on the internal and external surfaces to record its size and thickness.
表面爆炸时，一开始便有大量的泥土或水份被卷入火球中，并熔化或汽化。
In a surface burst large quantities of earth or water enter the fireball at an early stage and are fused or vaporized.
表面最高温度接近熔化温度时，仍含有一定数量的未溶渗碳体。
But at the peak temperature near the temperatures of melting, a significant amount of undissolved carbides still exist in the surface.
表面最高温度接近熔化温度时，仍含有一定数量的未溶渗碳体。
But at the peak temperature near the temperatures of melting, a significant amount of undissolved carbides still exist in the surface.
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