过热度

明确了钢液的过热度及脱氧合金化是铸坯产生皮下气泡的主要影响因素；

It is shown that the degree of superheat of molten steel and the deoxidation alloying are main factors for the formation of skin blowhole .

研究了不同拉速、过热度及二冷比水量对铸坯表面中心和角部温度及铸坯凝固终点位置的影响。

The effects of different casting speeds , degree of superheat and secondary cooling to the central and angle part temperatures and the final solidification point have been studied .

合金的液相线温度随Al量的增加而降低，Al含量从24%增至35%时，其过热度约增加1倍。

The temperature of liquidus decreases with the increase of Al amount .

蒸发器过热度的模糊PID自适应控制

Fuzzy PID self - adaptive control for controlling the superheat of evaporator

蒸发器过热度的RBF网络在线辨识与仿真

The identification and simulation of evaporator superheat by using RBF network

过热度和高压压力对跨临界CO2汽车空调系统的影响

Effects of superheat temperature and high pressure on transcritical automobile air conditioning systems using carbon dioxide as refrigerant

试验研究表明在同一过热度下，铝熔体中氢含量随合金元素Cu加入量的增多而下降。

The results showed that hydrogen content in molten Al decrease with alloying element Cu addition increasing at the same superheated rate .

Al-Si合金共晶凝固机理将随凝固速率及过热度的变化而改变。

The solidification mechanism of eutectic phase in the Al-Si alloy varys with solidification rate and overheating degree .

主要介绍通过有效的方法制得试样，用DSC-7准确测量出在包覆状态下大块单晶Al及大块晶体Pb的过热度，从而得出大块晶体过热的必要条件。

Many samples were made with effective methods , and their melting temperatures were measured by DSC-7.Therefore the essential condition of the superheating of the bulk crystals are verified .

建立了蒸发器&电子膨胀阀过热度模糊控制仿真系统，通过仿真分析了量化因子、比例因子及不同的采样时间，对控制效果及参数设置的影响、模糊控制与PID的控制效果比较；

A dynamic simulation model for the control of superheat by the electrical expansion valve has been established . Base on this model , parameter setting , sampling time and Comparison of Fuzzy control with PID control are discussed .

文章简要介绍SPC理论，以转炉出钢碳、连铸中包过热度两个重要参数为例，说明控制图在炼钢生产中的应用。

The paper briefly introduces SPC theory and explains the application of Control - chart in steel-making process control through 2 important parameters of tapping-carbon in converter and superheat in tundish .

认为异形坯连铸关键是成分优化、合适的保护渣、低过热度浇注、合理的二冷制度和比水量，含Nb钢连铸的矫直温度930℃。

The conclusion is that the keys of beam blank CC are the optimum chemical composition , adaptable powder , low superheat , reasonable secondary cooling method and the 900 - 930 ℃ straightening temperature .

在模拟方面，本文先对系统进行了热力模拟，得出了制热量、制热系数COP等参数随物料蒸发温度、过热度和过冷度的关系。

In simulation , at first we simulated thermodynamics of the system , obtained heat capacity , heating coefficient ( COP ) and other parameters changed with the material evaporating temperature , superheating temperature and undercooling temperature .

100kg级规模试验中钢水过热度降低26℃，相应等轴晶率达到80%。

The superheat was reduced by 26 ℃ and equiaxed crystal ratio of 80 % was obtained for 100 kg test .

在没有末端技术装备（F-EMS、TSR）的条件下，通过实行低过热度浇注可有效地改善连铸轴承钢的低倍质量。

Macrostructure of CC bearing steel can be improved with low superheat casting in the present condition without F - EMS or TSR .

工质为水，被吸附的薄膜厚度受分离压力的控制，在过热度为20K时达到最小。

The adsorbed film thickness , which is controlled by the disjoining pressure limit , reaches a minimum near about 20 K superheat for water .

当过热度为0.5K时，能量涨落值基本与生成气化核心的临界势垒相当。

Energy fluctuation amplitude is approximately equal to the critical potential barrier when the superheat degree is 0.5 K.

应用仿真软件，对南钢的铸机浇铸20g钢时的应变分布进行了模拟，分析了拉速、钢水过热度和二冷制度等工艺参数对铸坯凝固前沿应变的影响。

The strain distribution was calculated for 20g steel in the caster of Nangang . Through simulation the influence of casting speed , superheat and secondary cooling scheme on the strain had been analyzed .

电子膨胀阀（EEV）是制冷系统中的节流元件，它在系统中的主要作用是调节系统制冷剂流量、节流降压及控制过热度。

Electronic expansion valves ( EEV ) are throttling components in refrigeration system . It can adjust the flow of refrigerants , throttle step-down , and control superheat in system .

同时试验也表明；样机蒸发器出口过热度从10℃变为2℃时，系统制冷量增加13.4%，COP值增加9.3%，而输入功率只增加4%。

Furthermore , The experimental result shows that change of superheat degree at the outlet of the evaporator from 10 ℃ to 2 ℃ will cause 13.4 % increase in cooling capacity and 9.3 % increase in COP , but only 4 % increase in power consumption .

合金过热度为202K和252K时，雾化气场中相同位置的粉末质量流率变化不明显。

When atomizing at 202K and 252K superheat , the values of the mass flow rate have no obvious change .

在过热高于20K时最大的薄膜曲率和液体压差开始减小。随着过热度的增大，表面接触角也随之增大，分离压力梯度增大，热流密度最大值增大。

The maximum film curvature and liquid pressure difference then decrease at superheats larger than 20 K. The apparent contact angle , disjoining pressure gradient and the local maximum heat flux increase by increasing the superheat .

在相同蒸发温度下，随着吸气过热度的增大，系统COPH在所选范围内变化不明显，而料液蒸发量缓慢增大，工质流量减小。

With the increase of suction superheat at the same evaporation temperature , the system COPH did not change significantly within the selected range , while the evaporation capacity slowly increases and the working fluid flow rate decreases .

从实验结果还可以看到，小样品的Leidenfrost点和临界热流点对应的壁面过热度明显比大样品的高。

For the small samples there is a starting process during which the temperature drop is as high as 60K and the superheat degree corresponding to Leidenfrost point and critical heat flux point of small samples is greater than that of large ones .

在此基础上仿真研究了过热度及电流强度对5kA级惰性阳极铝电解槽物理场的影响，这些结论为惰性阳极电解槽的建造与试验提供了技术支撑。

On the basis of above investigation , the effect of superheat temperature and current intensity on the physical fields has been studied . All these conclusions provide technical support for the building and experiment of the inert-anode aluminum reduction cell .

利用自行设计的超音速雾化制粉装置，研究了合金过热度对SnAgCu系无铅焊锡粉末有效雾化率、粒度分布、球形度及含氧量的影响。

By means of the supersonic atomizing equipment developed by ourselves , the influences of super - heat of alloy on the properties of flee-lead solder power of Sn-Ag-Cu system , such as effective atomization efficiency , size distribution , particle shape and oxygen content are investigated .

认为：沸腾要在液相中产生一个新的蒸气相，过程要在一个远离平衡的条件下进行，要有一个过热度ΔTsat；

It can be concluded as follows : In boiling process , a new vapor phase is formed in a homogeneous liquid phase , it must proceed in a condition far away from equilibrium . Therefore , a TOS is needed .

降低出钢温度实现低过热度连铸

Reducing Tapping Temperature to Realize Continuous Casting at Low Overheating Temperature

蒸发器电子膨胀阀过热度模糊控制仿真及分析

Simulation and analysis of evaporator superheat electronic expansion valve fuzzy control

双辊薄带铸轧过程钢液过热度控制研究

Research on Superheat Control of Molten Steel During Twin-roll Strip Casting