Its half mole crystal water was determined by melting point analysis, Karl Fischer titration, weight loss on drying, elemental analysis. 通过卡费休水分测定法、干燥失重法、元素分析、热重分析及差热分析等方法确证产物中结晶水的含量;
The major elements Ti, Al, Mo, V and Zr within the weld are distributed symmetrically, and the melting loss and segregation do not appear. 焊缝接头主要元素Ti、Al、Mo、V和Zr均分布均匀,没有因采用活性剂而出现烧损和偏聚的现象;
However, when the PV values is over 60 Nm/ s, the wear mechanism of nylon composites changes to fatigue flake off and melting flow. It results in rapid increase in wear mass loss. 当摩擦副PV值大于60Nm/s时,磨损机理转变为疲劳剥层或熔融流变,导致磨损量急剧增长。
At a high enough PV value, the sliding surface of the coating would experience local melting and form some kind of lubricating film, hence the friction coefficient and wear mass loss increased. 当pv值足够大时,涂层摩擦表面温度进一步升高,部分涂层发生熔融并形成润滑膜,相应的摩擦系数和磨损质量损失降低。
Abstract The purpose of vacuum melting is to minimize the pollution of interstitial element on TiAl intermetallics, but the evaporation loss of Al in TiAl alloy melt in a vacuum will have influence on the composition of TiAl intermetallic melt. 真空熔炼的目的是避免间隙元素对TiAl金属间化合物的污染。但在真空下,由于钛铝合金熔体中铝的挥发损失将影响金属间化合物成分的准确度。
The Measures for Decreasing Melting Loss of Aluminium Alloy in Reflecting Furnace 降低反射炉铝合金熔损的措施
Some experimental techniques such as the dilution rate of flux and sample, preparation of sample with melting, the correction methods of the loss on ignition and the effects of enhancement and absorption were discussed. 研究讨论了熔剂体系及样品的稀释比例、样品的熔融制备、烧失量和基体增强吸收效应的校正。
After lamellar keratoplasty or conjunctival flap covering, the melting could recur to cause loss of vision. 施行板层角膜边缘移植术或结膜辨遮盖术后,可发生再溶解而致视力丧失。
For the thermoplastics studied, the melting behavior affected the mass loss rates during the steady burning stage. 在热塑性聚合物研究中,其熔化特性在温度燃烧阶段影响了质量损失速率。
Since taking some measures, for example decreasing the specific area of furnace charge, controlling charging sequence, improving removing slag operation, etc, the melting loss of aluminium alloy is decreased from 30% to 1.6% in Zibo aluminium plant. 淄博铝厂在生产中采取了减小炉料比表面积,严格装料顺序,改进扒渣操作等措施,使反射炉熔炼铝合金的熔损由3.0%降至1.6%。
In this paper, The mathematical model of heat transfer of glass batch in melting process has been established. The influence of thin blank · er feed on loss of energy has been simulated. 建立了玻璃配合料在熔化过程中的传热数学模型,模拟了薄层加料对能耗的影响。
The melting temperature is lower, which is bad for the display of flux, while the solubility of hydrogen is increased and the oxidation loss of the component is intensified if the melting temperature is higher, so the melting temperature will be appropriate; 熔炼温度过低,不利于熔剂作用的发挥。熔炼温度越高,氢的溶解度将随之增加,加剧了组元的氧化烧损,熔炼温度要适宜;
Additionally, the glass phase with low melting point may also cause microwave dielectric loss to increase remarkably. 另一方面低熔点的玻璃相引起微波损耗急剧上升。
Results show that the reverse melting cast can increase the solubility of the master alloy, reduce the loss of TiC in the melting cast process effectively and get the ideal composite. 结果表明:逆向熔铸法可增加中间合金的溶解度,有效减少熔铸过程中TiC粒子的损失,得到较为理想的复合材料;
Measure to Reduce the Melting Loss on the Construction of Optical Fiber Melting 光纤接续施工中减小光纤接头熔接损耗的方法
It is showed that fading of modification is due to Sr content less than some a critical value for melting loss, and effective period of modification is dependent on primary Sr content, melting process and refining process, etc; 结果表明,变质衰退表现为Sr含量低于某一临界值,有效期取决于初始Sr含量、熔化工艺及精炼方法等;
The furnace body endures distortion and stress produced by heat pressure in the smelting process. High temperatures will impair the lining, increase the melting loss and reduce the length of life. 炉体在炼铁过程中承受热压和高温,温度过高将损伤炉衬,并加大熔损,降低寿命。
Mullite ( 3Al2O3 · 2SiO2) is the only stable compound of Al2O3-SiO2 with many excellent performances such as high creep resistance, excellent thermal shock resistance and corrosion resistance, high melting point, high shear modulus, low dielectric constant and dielectric loss. 莫来石(3Al2O3·2SiO2)是Al2O3&SiO2系中唯一稳定的化合物,具有抗蠕变、抗热震、抗腐蚀性能好,熔点、剪切模量高,介电常数及介质损耗低等优异的性能。
At the same time, the PTFE which prevent short-circuit from happening in the melting state of the paraffin has less loss was confirmed, and Hydrated Paraffin has more loss, which attests to the rationality of the structural design of the model. 同时,证实了用来防止石蜡在融化状态下发生极间短路的聚四氟乙烯消耗很小的功率,而在含水石蜡上却能有比较大的损耗,这证明了这种模型结构设计是合理的。
The reasons of appearance different phases among base metal, welded seam and heat-affected zone are different chemical constitution proportion of base metal and welding wire and part of metallic elements are melting loss when welded. 母材和焊缝、热影响区出现不同相的原因是由母材与焊丝所含化学成分的比例不同及焊接时部分金属元素烧损所致。