Mould Temperature Distribution in Manufacturing Single-crystal Copper by Zone Melting Heated Mould Continuous Casting Criterion Conditions for Formation of a Single and Double Recirculation Flow Pattern in a Slab Continuous Casting Mold With Argon Blowing 区熔连铸法制备单晶铜的铸型温度场分布吹氩板坯连铸结晶器内单双循环流的判别条件
Spherulites of some polymers such as PE, PP and PS during melting crystallization under different conditions are studied by means of polarized microscope. 利用偏光显微镜,对高聚物(PP,PS和PE)在不同条件进行熔融结晶时的球晶进行了研究。
The melting conditions and mechanical properties of the synthetic cast irons produced with steel scrap and returns as main melting charge were introduced. 介绍以废钢和回炉料为主要炉料生产合成铸铁的熔炼条件和合成铸铁的力学性能指标。
In the arc petrogenesis system, such melting conditions are most likely to occur in the initial stage of slab subduction. 在岩浆弧岩石成因体系中,这样的熔融条件最可能出现在板块俯冲的初始阶段。
Of high temperature and high pressure, low temperature, high melting point and other conditions are able to meet the requirements. 对高温、高压、低温、高熔点等各种工况均能满足要求。
These parameters can reflect the trend of melting groove corrosion and slagging conditions, in order to make judgments and take the necessary measures. 这些参数的变化趋势可以反映出熔沟的腐蚀和结渣情况,以便做出判断,采取必要的措施。
In this paper, the results obtained from the differential scanning calorimetric method ( DSC method) for melting point determination of slice of bottle-grade polyester under different conditions are compared with those obtained by using the melting-point microscopic method. 通过采用熔点显微镜法和不同测试条件的差示扫描量热法(DSC)对瓶级聚酯切片熔点测定结果进行比较,研究了不同方法测定结果间的规律及不同测试条件对结果的影响。
The plants in the plateau areas and the melting soil-layers in the frozen are all affected by the climatical conditions and interaction each other. 高原地区的植物与冻土季节融化层都受到气候条件的影响,并相互制约。
The results show that DOP has good compatibility with PHB, enables to reduce crystallinity of PHB, lower melting temperature, broaden melting temperature region, improve processing conditions and raises toughness of PHB. 结果表明,DOP与PHB具有良好的相容性,能降低PHB的结晶行为,降低熔融温度,加宽熔融温区,改善加工条件,提高韧性。
In this study, aphanitic graphite ore was purified in a melting process at high temperature and the optimum conditions were ascertained. 采用高温熔融法对隐晶质(土状)石墨进行了研究并确定了最佳工艺条件。
Preparation of Bulky Amorphous Alloy by Suction Casting with Copper Mould under Non-vacuum Melting Conditions 非真空熔炼下负压铜模吸铸制备块体非晶合金
Thermal shock test in vacuum was done under modelling melting conditions, the coating could resistant to one time thermal shock in vacuum furnace and was in integrity. 在模拟熔炼条件下,对涂层进行了真空热震试验,涂层均能经受一次真空热震而涂层完好。
This text illustrates how to use middle frequency induction furnace technology to reform the existing iron melting conditions and settle the problems of iron molten non-stable, which directly affect quality of casting parts and diesel engines. 本文正是从如何利用先进的中频感应熔炼技术改造现有的熔化工况,解决了由于冲天炉熔化铁水的不稳定性、直接影响铸件质量和柴油机整机质量的问题。
The main factors affected the process included size of the particle, injection speed, melting and cooling conditions, density of the particle and the liquid metal, and wettability of the particle. 等离子熔-喷技术制备陶瓷颗粒增强表层复合材料的主要影响因素包括:陶瓷颗粒尺寸、陶瓷颗粒注射速度、熔化工艺参数及冷却条件、陶瓷颗粒和液态金属的密度、陶瓷颗粒的润湿性等。
The melting and crystallization behaviors of some PE under non-isothermal crystallization conditions were also studied to supply basic theories to the production. 同时采用了DSC(差示扫描量热法)对几种聚乙烯树脂在非等温结晶条件下的熔融、结晶行为进行了研究和对比,为生产提供理论根据。
To help them melting into the urban, it is necessary to improve their social conditions of living and development by working out a series of favorable policies. 为促进农民工的社会融合,必然制定一系列保护他们生存和发展的社会政策。
The dominant step for the reaction of platinum with oxygen and the effect of melting conditions on platinum concentration in glass were determined. 本文报道了确定铂和氧反应进入玻璃的制约过程,测定了各种熔制条件对玻璃中铂浓度的影响。
The problems to affect the determination of hydrogen in steel with melting method are introduced, the analysis parameters of instrument selected and optimized, the best analysis conditions worked out, under which the analysis sample has good precision and accuracy. 对影响熔融法测定钢中氢含量的问题进行了分析,对仪器的分析参数进行了选择和优化,确定了最合适的分析条件,在该条件下分析样品具有良好的精密度和准确度。
Melting ratio of electrode and efficient power factor of the current under different electroslag melting-casting conditions were calculated by energy conservation law through coupling simulation of thermo-electric field in slag pool at high temperature. 从高温渣池的热电场耦合模拟入手,利用能量守恒的方法计算了在多种熔铸条件下电极的熔化率及电流的有效功率因数。
Dependences of melting characteristics of polypropylene on conditions of modulated DSC 聚丙烯熔融特性与MDSC条件的相关性
Melting and Crystallization Behaviors of TLCP/ PA66 Blends Obtained in Different Conditions Based on DSC Analysis 用DSC分析不同条件下PA66/TLCP共混物的熔融与结晶行为
Correlation and calculation of the surface tension data of melting metallic substances at saturation conditions 金属熔体表面张力数据的关联与计算
A nitrogen fertilizer adsorbed on zeolite is prepared from the reaction between zeolite and ammonium nitrate melting salt, and its release courses of ammonium and nitrate nitrogen are studied under the conditions of water washing and soil. 通过沸石与硝酸铵熔融盐反应制得沸石氮肥,研究在水冲洗和土壤模拟耕层下铵态氮和硝态氮的释放情况。
The results show that bubbling is contributory to the raising of glass temperature, acceleration of flow velocity, improvement of glass melting and homogenizing conditions, and decreases in specific heat consumption It increases the possibility of fine seed out furnace simultaneously. 结果表明:鼓泡使窑内熔体温度升高、流速加快,玻璃熔制、均化条件改善,微细气泡澄清条件变差,玻璃单耗降低。
The authors analyse basic principles of the iron bath melting reduction process and the aluminium bath melting reduction process, conduct their experiments, and investigate the effects of such test conditions as temperature, time and basicity on the experiments, respectively. 分析了铁浴熔融还原法和铝浴熔融还原法的基本理论,进行了实验研究,并各自考察了温度、时间、碱度的影响。
The transformation rules of the melting efficiency were investigated under different experimental conditions. The optimal energy matching and position conditions of the laser and the arc were put forward. 研究不同焊接条件下焊缝金属熔化效率的变化规律,提出激光-TIG双面焊热源最佳的能量匹配原则和位置条件。
In this paper, experimental study and theoretical analysis were adopted to study the melting behavior and properties of incineration ash, and analyze the temperature of furnace, melting point and viscosity of incineration ash, appropriate coal ratio and blast air conditions were acquired. 本文采用实验研究和理论分析相结合的方法,研究灰渣的熔融特性和熔融行为,并结合灰渣熔点、粘度及炉温状况,获得了达到灰渣熔融与液态出渣所需炉温的煤比及鼓风条件。
The chemical composition of sewage sludge residue was analysis by XRF in this experiment, the as-quenched glass was made by the microwave melting method to determine the best conditions. 运用XRF分析污泥灰中的化学成分,以微波为热源进行基础玻璃的熔制,确定最佳的熔制工艺条件。
In addition, the interaction between hydrogen heating source and two optical fibers is virtually studying the variation regular of melting degree of optical fiber couplers which made on certain conditions. 氢气加热源与双根光纤的相互作用是研究一定条件下制作的光纤耦合器的熔融度D的变化规律。
According to different ratio of raw materials for the refining of molten slag and steel temperature measurement balance test, analyzed and discussed refining slag basicity and components of the refining slag and steel melting temperature of inclusions morphology in the same Si 、 Mn deoxidization conditions. 按不同的原料配比进行了精炼渣的熔化温度测定和钢渣平衡试验,在相同的Si、Mn脱氧条件下,分析讨论了精炼渣碱度和组分对精炼渣熔化温度和钢中夹杂物形态的影响。