Colourless optical glass test methods& Relative lapping hardness GB/T7962.19-1987无色光学玻璃测试方法相对研磨硬度测试方法
The results show that the relative polarity of Ti and Al wires has greatly dependence on micro hardness and microstructure. 结果表明在其它工艺参数相同的条件下,改变钛铝金属丝材与喷涂电源的连接方法对涂层的显微硬度及组织结构有很大的影响。
Based on the experimental results, the authors have established the dependence of absolute and relative wear of impregnated diamond bit on bit weight, revolutions per minute, watersupply and matrix hardness. 本文作者根据此试验结果确定出了金刚石孕镶钻头的绝对磨损、相对磨损与钻头压力、钻头转速、冲洗液量、胎体硬度的关系式。
The effect patterns of particle on spool valve surfaces is discussed. It is pointed out that the particle's strength, the relative size of particle and clearance of valve, the hardness of valve surfaces are the important factors which affect the effect patterns. 讨论了固体颗粒对运动副表面的作用形式,指出:颗粒强度、颗粒与运动副间隙的相对大小及运动副的表面硬度是影响颗粒对运动副表面作用形式的主要因素。
The stronger atomic bonding of the adjacent ( 111) crystal face of GP zones cause more difficulty of its relative slippage, which results in higher hardness of alloy. 而其相邻的(111)晶面上的共价键络较强,使得该面滑移时较基体更困难,从而起到提高合金硬度的作用。
The relative density and resistivity of Cu-W-Ni-C contact material are similar to the AgZnO_ ( 10) contact material, but the hardness of Cu-W-Ni-C contact material is higher than that of Ag-ZnO_ ( 10) contact material. 在相对密度相同时,Cu-W-Ni-C材料的电阻率与Ag-ZnO(10)材料的电阻率接近,而硬度高于Ag-ZnO(10)材料的硬度。
Microhardness and friction properties of TiC x N y films are relative to its N content and a excessively high N content has a harmful influence on the hardness and friction properties. 膜的硬度和摩擦特性与N含量有关,总的趋势是过高的N含量对其硬度与摩擦特性造成不利影响。
The relative density and resistivity of the silver-free contact material are similar to those of the silver oxidization contact material, but the hardness of the silver-free contact material is higher than that of the silver oxidization contact material. 当新型无银触头材料的相对密度与银氧化物触头材料的相对密度相同时,两者电阻率相当,而其硬度高于银氧化物触头材料的;
With CE of 3.8%~ 4.01%, the tensile strength reached 270~ 303MPa, relative strength, relative hardness and quality index also reached rather high level. 在CE为3.80%~4.01%的条件下,抗拉强度达270~303MPa,相对强度、相对硬度和品质系数均达到较好水平。
Relative green leaf area duration is significantly and negatively correlated with green leaf area at flowering, is significantly and positively correlated with hardness of stem. 相对GLAD与开花时绿叶面积呈显著负相关,与茎秆硬度呈显著正相关;
The relative density and hardness of the composites with the holding time of 30 minutes are higher than the composites with the holding time of 60 minutes. 保温30min的复合材料相对密度和硬度明显高于保温60min的复合材料;
Degree of Normality, Relative Strength, Degree of hardness, Relative hardness and Quality Index of Gray Iron ( I) 灰铸铁的成熟度与相对强度、硬化度与相对硬度、品质系数或质量指数(上)
The performances of superfine Fe-Co-Cu pre-alloyed powder SFP were tested, measured and analyzed. The sintered temperature of the powder decreased to 700 ℃, high relative density of fusion was proved to be 97%, in addition high hardness and abrasion resistance was achieved. 对超细Fe-Co-Cu预合金粉末(SFP)的性能进行了分析和测试,该粉末在700℃的烧结温度下烧结,烧结试样的相对密度达到97%;
The influences of the kind, the volume fraction and the relative hardness of the second phase and of plastic strain ε in steel as well as of initial surface roughness R_0 on the surface roughening behaviour in free forming are investigated. 研究了塑性变形量ε、钢中第二相的种类、数量和相对硬度比及初始表面粗糙度R0对自由成型表面粗糙化行为的影响。
The results showed that the relative density and Brinell hardness decreased while the electrical resistivity increased with the increase of graphite content. 研究发现,随着复合材料中石墨含量的增多,材料的相对密度、布氏硬度值降低,电阻率升高。