应用二次脉冲电流,改变电阻焊熔核的金属组织结构,达到提高焊接强度的目的。
The twice impulse process is employed to change the metallic structure of the resistance welding so as to improve the welding strength.
这过程被称为完全退火,因为它去除了以前组织结构的所有痕迹、细化晶粒并软化金属。
This process is known as full annealing because it wipes out all trace of previous structure, refines the crystalline structure, and softens the metal.
研究分析了合金过渡层与金属基体接合界面组织结构。
The microstructure between alloy transition layer and base metal has been studied.
以金相学理论基础,金相检测是一种用于研究金属材料内部结构组织与材料性能之间关系的检测技术。
Metallography detection is a technology that studies about the relationship between the structure and the performance of metal material based on the metallographic theory.
利用焊缝金属组织转变的方法可以在焊接过程中直接降低焊接残余拉伸应力,甚至产生残余压缩应力,有效地提高焊接结构的使用寿命。
Utilizing the transformation of bead metal can reduce tensile stress directly in the course of welding, even produces compressive stress, to improve the service life of welding structure effectively.
金属板中间的条纹为立面的主要组织特点并形成了延伸到屋顶的柔和而鲜明的过渡结构。
The lines which emerge from these bands is the main organizational principle of the facade and supports the central theme of soft, vivid transitions all the way to the roof.
金相学:研究金属与合金组织结构的学科,特别指采用显微镜和X射线衍射技术进行的这类研究。
Metallography: Study of the structure of metals and alloys, particularly using microscopic and X-ray diffraction techniques.
研究用热化学反应法在金属表面制备陶瓷涂层的工艺,并对涂层的相结构及显微组织进行分析。
The fabricating process of metallic ceramic coatings by thermochemical reaction method was studied. The phase structure and microstructure of the coatings were also investigated in this paper.
化学镀镍单板和化学镀镍刨花的组织结构摘要对性能的影响是木材组织和金属镀层共同作用的结果。
The influence that structure of nickel-plated veneers and particles has on its properties is the result of timber micro structure and metal layer common role.
液态金属的结构和性质对凝固行为、凝固组织以及材料最终的性能有重要的影响。
The structures and properties of liquid metals and alloys do have a significant influence on solidification behavior, solidified microstructure and their final properties.
综述了电解海水用金属氧化物涂层阳极的研究现状和发展趋势,以及该阳极的电化学特性与微观组织结构的关系。
The recent status and trend of the development of metal oxide coated anode are reviewed with relationships between its electrochemical properties and microstructure discussed.
目的:研究反复熔铸对非贵金属烤瓷合金铸流率、化学成分、微观组织结构的变化的影响。
Objective: To investigate the effects of recasting on the castability, composition and microstructure of non-precious ceramic alloy.
对涂层-金属基体界面区的激光熔合工艺、熔合区的组织结构、元素分布进行了研究。
It has been investigated to the laser melting process and the merging parts microstructure and the elements distribution of coating-metallic substrates interface zone.
结果表明,焊缝金属中存在的非金属夹杂物,在低应力作用下形成微裂纹成为裂源,加之焊缝组织中存在大量的MA结构群,从而发生焊缝金属在室温下的解理断裂。
The results showed that nonmetallic inclusions in weld seam served as crack initiation site under external bend load, and large amount of m a structure resulted in cleavage fracture of weld seam.
着重介绍了激光熔覆制备金属基纳米粒子增强涂层的组织结构和性能特征。
The microstructure, mechanical properties and application of metal matrix composites reinforced by nano-particles prepared by laser cladding are introduced.
本文就基质金属蛋白酶及其组织抑制剂的性质、结构以及功能进行了综述。
In this paper, the property, structure, and function of MMP and TIMP were reviewed.
针对以上问题,本文采用双层辉光离子渗金属技术,在不锈钢表面形成渗钛合金层,并对改性层的组织结构、摩擦学性能和腐蚀学性能进行了研究。
To solve these problems, this paper proposed to fabricate a titanium surface alloyed layer on 316L stainless steel substrate by means of the double glow plasma surface alloying technique.
针对以上问题,本文采用双层辉光离子渗金属技术,在不锈钢表面形成渗钛合金层,并对改性层的组织结构、摩擦学性能和腐蚀学性能进行了研究。
To solve these problems, this paper proposed to fabricate a titanium surface alloyed layer on 316L stainless steel substrate by means of the double glow plasma surface alloying technique.
应用推荐