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   润湿角 在 金属学及金属工艺 分类中 的翻译结果: 查询用时:0.052秒
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润湿角     
相关语句
  wetting angle
    The wetting angle and anti shear strength of rapid solidified Al-Si-Cu-Zn-Re powders are improved 2.5 and 28%.
    与普通钎料相比,快凝Al-Si-Cu-Zn-Re粉末钎料润湿角提高了2.5,抗剪强度提高了28%。
短句来源
    Obtaining of Young Equation by Principle of Energy and Establishment of Wetting Angle Model
    杨氏方程的能量求解法及润湿角计算模型
短句来源
    It is found that the wetting angle between aluminum and γ-alumina is between 30°and 50°,i. e. 30°<θ≤50°
    计算结果发现Al与γ-Al_2O_3的润湿角在30°到50°这一范围之间,即30°<θ≤50°
短句来源
    The relationship between the wetting angle (θ) and spreading areas (S) is researched.
    对润湿角(θ)与铺展面积(S)之间的关系进行了探讨。
短句来源
    The wetting angle of Sn-9Zn is 120°; while that of (Sn-9Zn)-10Cu is 54°.
    Sn 9Zn的润湿角为120°,而(Sn 9Zn) 10Cu的润湿角为54°。
短句来源
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  contact angle
    When adding content of Cu is 4% and content of rare earth Ce is 0.05%,contact angle of alloy is 49°,which is the most small.
    当添加Cu含量为4%,稀土含量为0.05%时,合金的润湿角最小为49°;
短句来源
    The results show that the contact angle of molten Zr_(55)Al_(10)Ni_5Cu_(30) and 1Cr18Ni9Ti substrate decreases as the temperature increases.
    结果表明:随着温度的升高,Zr55Al10Ni5Cu30与不锈钢基片之间的润湿角减小,润湿半径增大;
短句来源
    The results showed that niobium additions had no significant affection on the wettability of Fe-40al with alumina, and an adequate amount of yttrium addition decreased contact angle by 10°in the Fe-40Al/α-Al2O3 system which has a contact angle of about 80°above the melting point. SEM observations on the fractured interface were discussed based on thermodynamics.
    结果表明,Fe-40AL与α-Al2O3体系是润湿的。 合金元素Y的适量加入可使该体系的润湿角下降约10°,此外,Y和Nb的加入都对该体系的界面交互作用有明显影响。
短句来源
    According to the wetting model of novolak phenolic resin to the coating surface,the theoretical calculation of σ T-S in the hot die process is undertaken to established the relationship of σ T-S to the resin addition level in resin coated sand,the diameter of sand grains,the contact angle of the resin/coating surface and the theoretical adhesion strength. The factors influencing on the σ T-S are also analysed,thus measures to raise σ T-S have been suggested.
    本文根据壳型树脂对涂料表面的润湿模型, 对热模法中的σT- S进行了理论计算, 建立了σT- S与覆膜砂树脂含量、砂粒直径、树脂对涂料的润湿角及理论粘附强度之间的关系式, 分析了各种因素对σT- S的影响, 并据此提出了提高σT- S的措施。
短句来源
    Interfacial tension 7 for carbon steel (0. 45%C) and H62 brass in NaCl aqueous solutions were measured using JJC-1 contact angle instrumentation and JZHY-180 interfacial tension instrument, and their corrosion rates were determined by weight lose method.
    采用JJC-1型润湿角测量仪、JZHY-180型界面张力仪,测得45钢、H62黄铜在不同浓度的NaCL水溶液的表面张力γ值; 用失重法测试了上述材料在NaCL水溶液中的腐蚀速率.
短句来源
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  wetting angles
    By means of wetting balance method and spreadability method, the wetting time , wetting force and the wetting angles of Sn3.0Ag0.5Cu lead-free solder were tested under the conditions of different temperatures and coatings on substrates.
    采用润湿平衡法研究了不同温度下Sn3.0Ag0.5Cu无铅钎料在Cu基体(两种镀层)上的润湿时间和润湿力,采用铺展试验法研究了不同温度下该无铅钎料在Cu基体上的润湿角,研究了钎焊温度及基体镀层对Sn3.0Ag0.5Cu无铅钎料润湿性的影响规律。
短句来源
    It was showed that the liquidus and solidus temperatures of the alloy are 491.0℃ and 445.0℃,respectively,the wetting angles of the alloy on Ni plate are less than 15°under temperature≤ 550℃,and the spreading area on Ni plate is increased with increasing in temperature from 490℃ to 550℃.
    研究结果表明该钎料合金的液、固相线温度分别为490.1℃和445.0℃,合金在≤550℃下对Ni板的润湿角<15°,在Ni板上的铺展面积随着温度从490℃升至550℃而逐渐增大。
短句来源
    Alloying with Bi、Ni, SZC solder can improve the wettabilityand the wetting angles decrease half from that of Sn-9Zn by using RMA flux, when Ni content increase, The additives have little effect on the composition of interfacial IMC and the reaction layer decrease from 4um to 3um in SZC-Bi-Ni alloy for the formation of (Cu, Ni)-Zn compound, which resulted less Zn atoms diffusing to the interface.
    随着Ni含量的增加,润湿角逐渐减少,且在使用RMA钎剂情况下,润湿角减为一半以上; 微量Bi、Ni对界面IMC组织与形貌没什么影响,但1%Ni会降低界面IMC地厚度和钎料处富Zn相的含量。
短句来源
    And the studies are of great importance to accelerate the applications, development and innovation of the arc brazing technology. Firstly the dynamic spreading process tests of CuSi3 filler metal droplet under TIG arc heating are conducted. It can be seen that the spreading area and diameters increase and spreading heights and wetting angles decrease with the increase of arcing time and current when the arc length is 6mm.
    本文首先采用TIG电弧加热系统对CuSi3钎料液滴动态铺展过程进行了试验研究,发现CuSi3钎料液滴在镀锌钢板上铺展时,当电弧弧长L(6mm)一定,随燃弧时间和电流的增加,钎料的铺展面积和直径逐渐增大而其铺展高度和润湿角逐渐减小。
短句来源
    The wetting characteristics of Fe-Cr on TiO were studied. The results indicate that the wettability of Fe-Cr on TiO is not well, the wetting angles of Fe-Cr of various components on TiO are all about 90° at melting point temperature.
    Fe Cr合金对一氧化钛的润湿性能较差 ,在熔点温度下各成分的Fe Cr合金在一氧化钛上的润湿角都在 90°左右。
短句来源
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  “润湿角”译为未确定词的双语例句
    m1 ,wetting/ 2t h Cangleθ =116°, residual strengthσ ≥ 140 MPa after thermal shock 100rtimes (Δ T=700℃ ) which satisfied demands for melting magnesiumalloys completely。
    m1/2,热循环100次后(ΔT=700℃),剩余强度σ≥140MPa,润湿角θ=116°,完全能够满足镁合金熔炼用材料r的要求。
短句来源
    When thermal aging at 170℃, The plane MC Ni5Zn21 will not decompose after 1000h and the IMC thickness with time is parabola relation before 500h,however after 1000h the thickness do not change which is caused by no more Zn atom diffusing into interface.
    Zn一Cu无铅钎料研究展,所得润湿角为67“;界面IMC NisZn21在170℃下时效I000h仍然保持完整,时效初期(SO0h以前)厚度与时间主要成抛物线关系,时效时间超过50Oh后n涯C厚度增长非常缓慢因为Zn很难由Cu一Zn化合物扩散至界面。关键词:无铅钎料;显微组织;时效;润湿性;金属间化合物n-
短句来源
    The W-coating treatment of graphite was carried out under 1.33x10-3Pa vacuum at first and a thin film Of WC+W2C+W was formed on the treated graphite surface. The contact angles of Cu-Co/Ni alloys on the W-coated graphite were then measured using the Sessile-Drop technique.
    本文首先在 1. 33 × 10-3Pa真空下对石墨表面进行了渗钨处理,并在石墨表面生成 了一层W+W2C+WC 表面膜.然后,用座滴法于1.33×10-4Pa真空下测定了Cu- Co/Ni合金对不同条件下渗钨石墨的润湿角
短句来源
    The wettability angle between SiC and pure aluminum、AlSi 7、AlSi 7Mg 1 are measured at diffrent temperature (700~1 000℃) and diffrent contact time (0~30 min) in the atmosphere of argon gas. The comprehensive analyses and discussion are made on the effects of alloy composition and contact temperatures.
    在氩气保护下,在不同温度(700~1000℃)、不同接触时间(0~30min)时,测量了SiC与Al、AlSi7、AlSi7Mg1合金之间的润湿角,并分析比较和讨论了合金成分与接触温度对润湿性的影响.
短句来源
    Effect of different contents of La and Ga on the wettability and the microstructure of interface of Sn-8.9Zn-2.7Bi trinary alloys was studied.
    通过向Sn-Zn-Bi系钎料合金中添加适量合金元素Ga,Cu和La,制备了对Cu母材具有较好润湿性能的Sn-8.9Zn-2.7Bi-1.0Ga-0.5Cu-0.2La无铅钎料,其润湿角为25.1°。
短句来源
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  wetting angle
The calculations are made in the range of variation of the parameters, the wetting angle and the Bond number, adjoining the boundary of the stability region.
      
For fixed volume of the fluid and different values of the angular velocity and the wetting angle the decay rate and frequency of the characteristic oscillations are calculated.
      
A nonuniform temperature distribution, the presence of surface-active substances and impurities, and also other factors lead to a change in the wetting angle along a plane.
      
The Effect of Wave Formation and Wetting Angle on the Thermocapillary Breakdown of a Falling Liquid Film
      
Different working liquids and coatings of the working surface are used in the experiments to investigate the effect of the wetting angle on the film breakdown.
      
更多          
  contact angle
With the increase of DHPDMS content, the water contact angle increased while the surface tension decreased.
      
As the DHPDMS content increases above 5%, both the contact angle and the surface tension tend to approach a constant.
      
The contact angle increases with increasing temperature, and it tends to approach a constant when the temperature is higher than 50°C.
      
Surface energy of preservative-treated southern yellow pine (Pinus spp.) by contact angle measurement
      
Based on the contact angle data, the surface energy was obtained from the acid-base approach.
      
更多          
  wetting angles
The boundaries of the stability region are calculated in the case when the wetting angles on the lower and upper plates are the same.
      
Wetting angles and limits of thermal stability of esters derived from pentaerythritol and perfluoro-, ω-chloropolyfluoro-, and perfluoropolyethercarboxylic acids were studied.
      
The estimated acid-base characteristics of the surface of α-Al2O were on the whole in agreement with the results obtained by measuring the dependence of wetting angles on solution pH.
      
The results indicated that the wettabilities of Fe and Fe-Cr on TiO were poor, and their wetting angles were about 90° at melting point.
      
The wetting angles reduced with the increase of wetting temperature, but the influence of temperature was small.
      
更多          
  constant angle
The developed numerical model is first verified by comparison with the analytical solution of constant angle model.
      
In comparison, it is found that the constant angle model has some problems.
      
The boundary perturbation solutions for blood flow between two relatively rotating concentric cones (one is stationary and the other is rotating with constant angle velocity ω) have been obtained[1].
      
Theg-factor of the lowest 3/2- state is determined using the internal field in a constant angle reversed field method.
      
Of the variables tested, only movement direction but not movement velocity or distance had a statistically significant impact on the dependent constant angle error (difference between reproduction and target angle).
      
更多          


The influence of Sr and Sb on the solidification process of Al-Si alloys. was investigated by differential thermal analysis(DTA). The contact angles between the melt and silicon substrates were measured, and the interfacial energies were calculated. It was obtained that Sr and Sb in the melt raised the Al-Si eutectic nucleation temperature and retarded the eutectic crystallization. Sr and Sb in the melt had no thermodynamic tendeney to absorb on silieon crystals, which was contrary to the traditional point of...

The influence of Sr and Sb on the solidification process of Al-Si alloys. was investigated by differential thermal analysis(DTA). The contact angles between the melt and silicon substrates were measured, and the interfacial energies were calculated. It was obtained that Sr and Sb in the melt raised the Al-Si eutectic nucleation temperature and retarded the eutectic crystallization. Sr and Sb in the melt had no thermodynamic tendeney to absorb on silieon crystals, which was contrary to the traditional point of view. But Sr and Sb might accumulate on silicon crystals and affect the growth of Al-Si eutectics because the partition coefficients were less than 1.

本文用差热分析法研究了Al-Si共晶合金、亚共晶合金的动态凝固过程。结果表明,Sr和Sb均提高Al-Si合金的共晶析出温度和降低Al-Si共晶的结晶体速度。同时,通过Al-Si共晶合金液与Si晶面之间润湿角的测量和界面张力的计算发现,Sr与Sb原子均无Si晶面上的热力学吸附倾向,但会在Si晶面上富集,故Al-Si合金的变质阈值与合金的冷速有关。

Interfacial tension between liquid Al and molten fluoride salt wasdetermined using sessile drop method combined with X-ray radiograph. A compu-ter program of curve fit for coordination of configuration of sessile drop was usedin the picture processing of the sessile drop. Regressive equations were worked outto calculate density of the molten salt. Influence of mole ratio of NaF/AlF_3, contentof Li_2CO_3 and rare-earth oxides in the molten salt on interfacial tension of Al-saltwas discussed. The contact angles...

Interfacial tension between liquid Al and molten fluoride salt wasdetermined using sessile drop method combined with X-ray radiograph. A compu-ter program of curve fit for coordination of configuration of sessile drop was usedin the picture processing of the sessile drop. Regressive equations were worked outto calculate density of the molten salt. Influence of mole ratio of NaF/AlF_3, contentof Li_2CO_3 and rare-earth oxides in the molten salt on interfacial tension of Al-saltwas discussed. The contact angles of liquid Al on the surface of graphite, graphitizedcarbon cathode and the graphite with coating of TiB_2 were determined.

用X射线座滴照像法测量了铝液-氟化物熔盐间的界面张力。采用曲线拟合液滴轮廓坐标的计算机程序处理座滴图像。用逐步回归分析方法获得了计算熔盐密度值的回归方程。讨论了熔盐中NaF/AlF_3分子比,Li_2CO_3和稀土氧化物含量对熔盐-铝液间界面张力的影响。测量了铝液在熔盐中对石墨、工业碳块以及TiB_2涂层的润湿角

The wettability of soft solder, the melting point of wich is below 150℃, is studied through wetting angle and dynamic wettability in this paper. The results obtained have instructive function for brazing technology of gyro housing.

本文用润湿角和动态润湿性就熔点低于150℃的软钎料的润湿性进行了研究。研究结果对陀螺仪壳体的钎焊工艺具有指导意义。

 
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