The melting rate and melting structure of mold fluxes are so important that the carbon material and their addition amounts should been selected cautiously. 连铸过程通常采用调节配炭量和配炭方式来调节保护渣的熔化速度和熔融层状结构。
The ice cream made from this optimal formula was found to be good in expansion rate, melting rate and sensory attributes. 由此制得的冰淇淋膨胀率、融化率和感官指标均比较理想。
The melting process of mold fluxes were simulated in an unidirectional furnace so how these six kinds of carbon material influence on the melting rate and melting structure was made clear. 本文通过单向加热炉模拟保护渣在结晶器内的熔化过程,研究了六种炭质材料对保护渣熔化速度和熔融结构的影响。
It is also pointed out that the intrinsic self regulation effect of wire melting rate exists in case of electrical short circuit. 证实了阳极斑点爬升现象,测定了弧长恢复时间常数,并指出短路过渡时也存在着焊丝熔化率的自身调节作。
The results showed that: wax melting rate decreased and complete melt-down time grew with the increasing in well depth at each method of displacement; 结果发现,三种驱替方式下,随着油井深度的增加,蜡样的熔解速度减缓,蜡样完全熔解时间延长;
A study of pre-reduced pellet melting rate 预还原球团矿的熔化速度研究
Effect of melting rate modifier on melting rate of mold powder for continuous casting 熔速调节剂对连铸保护渣熔化速度的影响
In this paper, the characteristics of the mold powder for high speed continuous casting, such as melting rate, melting temperature, crystallization temperature, viscosity and their correlation are studied. 研究了高速连铸保护渣的一些特性,如熔化温度、熔化速度、析晶温度、粘度以及它们之间的相互关系。
This paper has studied the relationship between the a-mount and schedule of carbon addition, carbon variety, melting rate, melting characteristic and melt structure. 本文研究了保护渣熔化速度、熔融特性和熔融结构与渣中配炭量、配炭种类和配炭方式的关系。
The adiabatic temperature T_ ( ad) and melting rate R_m of Mg_2Ni in the combustion synthesis of the intermetallic phase Mg_2Ni at different preheating temperatures were calculated theoretically. 从理论上对燃烧合成Mg2Ni反应体系在不同预热温度下的绝热温度及Mg2Ni的熔化率进行了计算。
Influences of melting rate and depth of metal pool on the solidification of electro-slag remelting high speed steels have been investigated by measuring the secondary dendrite arm spacing and the ledeburite meshes and also by calculating the values of local solidification time. 实验中通过测量铸锭的二次晶轴间距、莱氏体网络尺寸及计算局部凝固时间考察了熔化速度、熔池深度对电渣重熔高速钢凝固质量的影响。
The results indicate that with the increment of diameter of electrode, the gravity coefficient of coating, deposition efficiency and Mn, Si content in the deposited metal increment, but the melting rate deposition rate decrease. 试验结果表明,焊条直径增加,焊条药皮重量系数、熔敷效率增加,熔化速度和熔敷速度降低;
Practice of Raising Melting Rate of Medium Frequency Coreless Induction Furnace 提高中频无芯感应电炉熔化速度的实践
Influence of Na_2O on melting properties of mold fluxes were studied by experiments. Melting temperature, melting rate and crystallization temperature were measured. 实验研究了Na2O对连铸保护渣熔化性能的影响规律,测定了实验渣系的熔化温度、熔化速度和结晶温度。
Effect of atmosphere and addition agent on the melting rate of low carbon mold powder in continuous casting 气氛和添加剂对低碳连铸保护渣熔速的影响
C+ BN skeleton particles can decrease viscosity, melting temperature, melting rate and crystallizing temperature of the mold powder. C+BN作为骨架粒子可以使保护渣的粘度减小、熔化温度降低、熔化速度降低、结晶温度降低。
For constant melting rate they remain unchanged and for constant metal-pool depth they decrease gradually. 恒熔速重熔渣温,熔速在过程中保持恒定;恒熔池深度重熔渣温、熔速随过程降低。
Test and analysis have been taken in view of crack appearance regularly of de-vitrified glass, It points out the crack is effected on lumpiness of recovery cullet, melting rate of furnace, heat treatment technology etc. 针对微晶玻璃炸裂出现的现象与规律,进行了试验与分析,指出回头碎玻璃的块度、熔化窑的熔化率、热处理工艺等对炸裂的影响;
The coke expense could be reduced and the melting rate and temperature of molten iron could be increased by using oxYgen enrichment or oxygen injection to improve the blast in the cupola melting process. 用富氧法和直接射氧法来改进冲天炉熔炼过程的鼓风,可降低焦炭消耗,提高溶化率为铁液温度。
The results show that the surface temperature of melt pool is affected intensively by melting parameters such as melting rate, melting power, electron beam scanning pattern and scan frequency, etc. 结果表明,结果表明,熔炼工艺参数如熔化速度、熔炼功率、电子束扫描方式和扫描频率都会对熔池表面温度产生剧烈影响。
Low-density polyethylene ( LDPE) was used in the calculation, and some conclusions were obtained. Melting rate increased, while thickness of melt film and melting length decreased with the increase of vibration frequency and amplitude. 使用低密度聚乙烯(LDPE)进行实例计算,得出熔融速率随振动频率和振幅的增加而增加,熔膜厚度和熔融段长度随振动频率和振幅的增加而减少。
The slag column method and the melting ratio method were used to show the relationship between the carbon materials added and the melting rate of fluxes. 采用渣柱法和熔化率法两种不同的测试方式进行了碳质材料与保护渣熔化速度的关系研究。
Determination of the Electrode Melting Rate in Electroslag Remelting Process 电渣重熔过程中电极熔速的确定
However after vibration intensity reached a limit value, melting rate, thickness of melt film and melting length would remain unchanged. 当振动强度达到某一极限值后,熔融速率、熔膜厚度和熔融段长度不再随振动参数的变化而变化。
The calculated melting rate of scrap was consistent with experimental value. 结果表明:采用一维不稳态有移动边界的熔化数学模型计算棒体的熔化速度与实验结果相符合。
The effect of the melting rate on the Local Solidification Time ( LST) and ingot quality and power consumption is analyzed. 分析了电渣重熔过程中电极熔化速度对局部凝固时间和钢锭的结晶质量的影响,同时分析了熔化速度对工艺电耗的影响。
With the increase of liquid phase volume, the melting rate gradually increased. 随着液相区域体积的增大,融化速率也逐渐增大。
Narrow-Gap Submerged-Arc Welding ( NG-SAW), due to its higher melting rate, smaller Heat-Affected Zone and better mechanical properties of its welding metal, has been expanding its application domain and scope. 窄间隙埋弧焊(NG-SAW),由于它的熔敷效率相对较高,热影响区相对较小以及接头的力学性能更好,其应用领域和范围一直在不断扩大。
Global warming accelerates the melting rate of glaciers, which brings the extinction crisis to the coastal country. 全球气温的上升加速了冰川的融化速度,给处于海岸线的国家带来了灭亡的危机。
Results show that fluctuation of welding voltage will appear with the variation of arc length because of the sidewall, and this will lead to variations of droplet transitional form and melting rate of welding wires. 结果表明:由于侧壁和熔池表面形状的影响,旋转过程中弧长变化,引起焊接电流波动,导致熔滴过渡形式和焊丝熔化速度发生周期性变化。