The effects of the fraction of Al on the spreadability of Zn-Al solder on Al and Cu, and the strength of Al/Cu brazing joint were studied.
研究了Al含量对铝铜异种金属钎焊用Zn-Al钎料的铺展性能和铝铜焊接接头强度的影响。
The properties of 16 kinds of organic activator were tested by means of witting angle and spreading property.
通过润湿角和铺展性表征对16种有机活性剂进行了性能测试,用热失重法测试其热解过程,对所选活性剂进行复配处理完成表面包覆并制得活性物质。
By means of optical microscopy, electrical conductivity measuring device and temperature measuring device, the microstructure, electrical conductivity ,solidus temperature, spreading property of solder were analyzed.
用光学显微镜、电导仪、热分析仪等对合金的微观组织、电导率、熔点、铺展性能进行了分析,并与Sn37Pb进行了对比。
The contents of Si,Cu,Ni and RE are changed by using orthogonal test in order to study the effect of the content changes on the melting points,spreading property and shear strength of Al-Si-Cu-Ni-RE,and the microstructure of filler metal is analyzed by SEM and EDS.
运用正交试验法,通过改变Si,Cu,Ni元素以及混合稀土RE元素的配比,研究含量的变化对Al-Si-Cu-Ni-RE钎料的熔点、铺展性以及抗剪强度的影响,并通过扫描电镜及能谱分析了钎料内部显微组织;通过研究发现,钎料的成分及加热温度是影响铺展面积的主要因素;对钎料显微组织分析可知,钎料中黑色的脆性θ(CuAl2)相和区域偏析的絮状相不利于接头的性能,而具有面心立方固溶体的基体相α(Al)以及球状聚集的Si相,使得钎料的力学性能优良。
The effect of Cu, In, Bi, S on the melting point and the spread-ability of Sn/Ag based lead-free solder was studied.
研究了Cu、In、Bi、S元素对Sn-Ag基无铅焊料熔点和铺展性的影响。
Effects of Ce on spreadability of Sn-Cu-Ni lead-free solder and mechanical properties of soldered joints;
稀土元素Ce对Sn-Cu-Ni无铅钎料铺展性能及焊点力学性能的影响
Effects of Ce on physical properties and spreadability of Sn-Cu-Ni solder;
稀土Ce对Sn-Cu-Ni钎料物理性能和铺展性能的影响
Effect of Ag and Ni on melting temperature and spreadability of Sn-SbCu solder alloy
Ag和Ni元素对Sn-Sb-Cu无铅钎料熔化温度和铺展性能的影响
Due to their good wettability, fluidity, machinability and corrosion-r esistance of joint, Al-Si filler metals have been widely used.
结果表明,随着合金元素Cu,Si的质量分数的增加,其熔点大大降低;同时钎料的铺展性能也有所改善;合金元素对钎焊接头强度的影响规律不明显。
By adding different content of Ni into the Ag20CuZnSnP filler metal,the effect of Ni on wettability and the shear strength of joints are studied and analysed.
通过在Ag20CuZnSnP钎料合金的基础上添加不同含量的元素Ni,研究并分析了不同含量的Ni元素对钎料铺展性能和钎焊接头抗剪强度的影响。
Investigation on the Wetting and Spreading Abilities of Propiconazole 25% EC with Naphthenic Light Oil as Dispersing Medium on Vegetable Leaves
轻质油为介质的25%丙环唑新型乳油在蔬菜叶片上的润湿铺展性能
Effect of Ag and Ni on melting temperature and spreadability of Sn-SbCu solder alloy
Ag和Ni元素对Sn-Sb-Cu无铅钎料熔化温度和铺展性能的影响
parallel plate viscosimeter (spread-o-meter)
油墨特性线的平行板粘度仪(铺展仪)
Show and communicate in terms of the vision goods retailing the shop;
论零售店铺的视觉性商品展示与沟通
Self-assembly of Gemini Surfactants at Air/water Interface;
Gemini表面活性剂在气/液界面的吸附与铺展
The Analysis of the Characteristics of the Dot Spreading and Penetration Ink-jet Printing Technology;
纸张喷墨印刷的网点铺展渗透特性分析
Spreading of Soluble Surfactant Driving by Tempreture and Concentration
浓度和温度驱动下可溶性活性剂溶液铺展过程研究
a lavish display, meal, reception
铺张的展示、 饭菜、 招待.
structural performance of pavement
路面铺装的构造特性
The quality of being extravagant.
浪费，铺张奢侈的性质
There is no give in a stone floor.
石头铺的地面毫无弹性。
The dealer spread the rug out to display the pattern.
商人将地毯铺开以展示图案。
He developed the little shop into a big store.
他把小铺子发展成一个大商店。
Development & Marketing Strategy Research: Fbraciated Shop;
我国网络店铺的发展与营销策略研究
Development prospect and conditions of non - store marketing in China;
无店铺销售在中国的发展前景与条件
Development and Application of Automated Placement Technology for Composites
复合材料自动铺放技术的发展及应用
Mechanical Advance on Asphalt Pavement of Concrete Bridge Deck
混凝土桥面沥青铺装层力学研究进展
unsewered development
未有污水设施的发展区；未铺设污水管的发展区