premelting是什么意思

用法例句

Molecular dynamics is applied to study the layer density profiles, layer structure factors and layer radial distribution function of the slab in order to research the premelting phenomena and meltin.

运用分子动力学方法(MD)从原子面密度函数、面结构因子、面径向分布函数三个方面研究了V(111)晶面的预熔现象和熔化情况,发现V(111)面在800K左右开始出现预熔。

Using the modified analytic embedded-atom method(MAEAM),the molecular dynamics(MD) simulation was performed to study the premelting and melting behavior of (001) plane of niobium and tungsten.

采用改进分析型嵌入原子方法(MAEAM),对铌、钨晶体的(001)面预熔和熔化过程进行分子动力学模拟。

Integrating carbon-free,premelting,hollowness and basicity,the TB-P tundish powder is of the CaO-MgO-Al2O3-SiO2 slag family and of a hollow spherical product with CaO/SiO2 > 2, MgO ( 14 ± 4 .

TB—P中间包覆盖剂集无碳、预熔、中空、碱性于一体,选择CaO-MgO-Al2O3-SiO2 渣系,CaO/SiO2>2,(MgO)为(14±4。

In the experimental research of hot metal pre-treatment dephosphorizer consisting of CaO-oxide scale-CaF2,it is proved that both pre-melted dephosphorizer and solid synthesis dephosphorizer can reduce the P-content to less than 0.

研究发现预熔脱磷剂和固体合成脱磷剂均能使铁水磷质量分数降低到0。

Contraposing to the defects of desulphurizer of CaO-CaF_2 system,a new pre-melted desulphurizer based on CaO-Al_2O_3-SiO_2 system was developed,in which some components with high basicity and good sulfur capacity were added.

针对CaO-CaF_2系脱硫剂对RH浸渍管侵蚀严重、污染环境缺点,开发出一种以CaO-Al_2O_3-SiO_2渣系为主,添加部分高碱度、高硫容组分的预熔型脱硫剂。

The present paper studies the hot metal dephosphorization using the CaO-Fe_2O_3-CaF_2 slag series and its premelted slag as dephosphorizer.

以铁水和脱磷粉剂为研究体系,应用CaO-Fe2O3-CaF2渣系的脱磷粉剂和其预熔渣对铁水脱磷,研究结果表明,用Al2O3和白云石部分替代萤石,预熔后的脱磷渣都比未预熔渣的脱磷速度快,且二者的处理过程结果基本相似,脱磷粉剂经过预熔处理,成渣迅速,预处理时间缩短,温降小,脱磷率高。

The desulphurizing efficiency,its influencing factors and the influence on the content of steel by premelted slag on BOF tapping have been studied.

结果表明:不同预熔渣的渣洗脱硫率差别较大,其脱硫率决定于其物化性能;渣洗脱硫可缩短LF精炼时间;采用渣洗工艺后可减轻低碳钢在精炼过程中的增碳和增硅现象。

It is indicated that:(1) slag Infiltration Desulphurization takes place in the first few minutes when converter slag is put in ladle,the parameters of premelted slag such as melting point,melting speed,wettability and sulfur capability play an decisive role;(2) the content CaO of premelted sl.

结果表明：(1)渣洗脱硫主要发生在转炉渣进入钢包以前的几分钟时间内,预熔渣的物化性能,诸如熔点、熔速、与钢水的润湿性和硫容量对渣洗脱硫率起决定作用；(2)渣洗脱硫剂的 CaO 含量对渣洗脱硫效果影响很大；(3)转炉渣洗脱硫后,可缩短 LF 精炼时间和减轻冷轧低碳钢的增碳和增硅现象。

Using molecular dynamics simulation,the pre-melting temperature of Fe_55 cluster was studied by the change of root mean squart bond length fluctuation,and the relationship between energy and configuration was discussed.

本文运用分子动力学模拟小尺寸铁团簇在熔点附近的预熔化现象,根据均方根键长涨落判断出预熔化现象发生的温度区间并讨论在此温度区间内能量和结构的关系。

We found that these Pdn clusters all have pre-melting phenomenon.

结果表明:所有Pdn团簇的熔化过程中都有预熔化行为。

The results indicate that there are some quasiliquid layers on plane (001) at some temperature below the melting points of the prefect crystals.

结果表明，(001)面在低于其完整晶体的熔化温度出现预熔。

Influence of MgO and Li_2O on Melting Temperature of Free Fluoride Premelted Continuous Casting Mold Fluxes

MgO和Li_2O对预熔型无氟连铸保护渣熔化温度的影响

Calcium Aluminate Premelted Slag and Its Application on Converter Wash Heat;

铝酸钙预熔渣及其在转炉渣洗脱硫中的应用

Study on Physico-Chemical Properties of Al_2O_3-CaO Base Premolten Refining Slag;

Al_2O_3-CaO基预熔精炼渣冶金物化性能的研究

Research on Synthesis of Lactic Acid Prepolymer by Melt Polycondensation and Its Chain Extension;

熔融法合成乳酸预聚物及其扩链研究

Melt Index Prediction Based on Particle Swarm Optimization

基于粒子群优化算法的熔融指数预报

Analysis of a Cable Melting Down Failure and Preventive Measures

一起电缆熔断事故的分析与预防措施

Growth of Laser Initial Damage in Conditioned Fused Silica at 355 nm

经355nm激光预处理后熔石英的损伤增长

Pre-desilication of laterite in NaOH sub-molten salt system

红土镍矿在NaOH亚熔盐体系中的预脱硅

Research on Prediction Model of GMAW Ignition Time

熔化极气体保护焊引弧时间预测模型

NEW TECHNOLOGY FOR MODEL PREDICTION AND IMPROVEMENT OF WELD LINE STRENGTH IN INJECTION-MOLDED PARTS

注塑件熔接痕强度预测及提高新技术

Simulation on temperature field of pre-coated layer formed by steel dieing and parameters predicting in laser cladding

激光熔覆模压预置层的温度场模拟与参数预测

This paper introduces an analytical melting model for extrusion to calculate the melting rate and predict the meltingcapacity of screw.

根据挤出熔融模型用解析法计算熔融速率,预测螺杆的塑化能力。

Pre-electrolysis Purification of Fluoride Melts for Preparation of Solar Grade Silicon by Three-Layer Electrorefining

三层液熔盐电解制备太阳级硅用氟化物电解质熔体预电解净化

Investigation on Manufacturius Low Ferronickel from Nickel Laterite Ore by Prereducing-Smelting Process;

红土镍矿预富集—还原熔炼制取低镍铁合金研究

"In-situ" Observation of Corrosion Process in the Fusion Boundary in Dissimilar Steel Welding Joints and Prediction of Carbon Diffusion;

异种钢焊接熔合区“原位”腐蚀研究及碳迁移预测

Engineering Research in Prepolymerization Process of Polycarbonate Synthesis Through Melt Transesterification;

聚碳酸酯熔融酯交换法预聚过程的工程研究

The Development of the Optical Fiber Preparation Collapsar PLC Fuzzy Control System;

光纤预制棒熔缩机PLC模糊控制系统的开发