铸钢

By means of thermodynamics calculation and analysis for samples,the carburization was further researched.

钢中的碳对超低碳钢的性能有很大的影响，针对鞍钢 ASP 中薄板坯连铸生产超低碳钢异钢种连浇过程中铸坯增碳的问题，通过理论计算和取样分析，对异钢种连浇过程铸坯增碳进行了研究，并对工艺进行改进。

It has been briefly described that the principle and characteristic of the double-roller strip casting and been analysed that the selection of the twins-roller strip casting's process parameter in this paper, such as product size, casting roller diameter.

简要描述了双辊薄带连铸的原理和特点，并对双辊薄带钢连铸工艺参数，如产品规格、浇注辊直径等的选择进行了分析。

The process of producing low-carbon aluminium killed steel using new deoxidant in the steelmaking plant of Baotou Iron and Steel Co was introduced.

介绍了包钢炼钢厂小方坯连铸机开发生产新钢种以及转炉采用新型复合脱氧剂生产低碳铝镇静钢的工艺路线，采用新型工艺路线及脱氧剂脱氧合金化后，Al收得率平均提高1倍以上，钢中氧的质量分数控制在10×10-6~50×10-6，低碳铝镇静钢的炼成率达99%以上，铸坯质量合格

In the fields of metallurgy system, the projects that we supplied assemblies for are as follows: Bao Steel 3rd Project (hot rolling、link casting、wire material、billet ban); Workshop Steel Structure、Bao Steel "Shiwu" Programming Lenience Ban、Blast Furnace、Link Casting; Wu Steel 3rd Steel-making

冶金系统在冶金系统，公司产品占上海市建筑企业五十强排名第一的上海宝冶采购总量超过60%，配套其宝钢三期工程（热轧、连铸、线材、坯板等）厂房钢结构、宝钢十五规划宽厚板、高炉、连铸等重点工程。

The 11 kinds of surface crack features of round cast billet formed by high casting temperature, mould flux lubricating film un-uniform at billet shell, unstale casting speed, tundish nozzle eccentric, alloy steel cast billet cooling and reheating speed overhigh, deleterious elements Pb,Sn,As,Sb and Bi residual content in steel over standard requirements and mould copper tube shifting,...

叙述了浇铸温度高，保护渣润滑膜不均匀，铸坯拉速不稳定，二冷水不均匀，中间包水口不对中，合金钢铸坯冷却和再加热速度过快及钢中五害元素超标和结晶器铜管偏移等致使圆铸坯表面形成的 11种裂纹的特征及其预防措施。

The dynamic inward pushing of shell is a process including remelt of shell pushing into the liquid core, solidification as well as strand thickness reduction, simultaneously.

铸坯沿拉坯方向的伸长受到抑制的液芯铸轧过程同时是一个动态反向堆钢过程。

Vanadium content in steel,deformation temperature,deformation rate,cooling rate,on high temperature thermoplasticity of low alloy vanadium steel was quantitatively investigated on GLEEBLE - 1500 thermal - mechanical simulator by means of orthogonal design test.

应用GLEEBLE-1500热力模拟机，采用正交分析法定量研究了低合金钢中含钒量、变形温度、变形速率、冷却速率等因素对含钒钢高温热塑性的影响，用数学回归法建立了各影响因素与钢的热塑性间的数学模型，为制定含钒钢连铸工艺提供了依据。

To introduce the distinguishing and formation cause of such scabs as point dispersion tiny,block without root,turnup skin with root,point type,sawtooth,period block on the surface of wire rod made in Angang high speed wire rod mill.

介绍安钢高速线材表面点状弥散型细小结疤、块状无根结疤、翘皮状有根结疤、点状结疤、锯齿状结疤、周期性块状结疤的鉴别和形成原因，提出稳定连铸坯拉速、降低钢水过热度、提高钢水质量及连铸操作水平，使铸坯的表面和内在质量全面提高，是解决高速线材表面结疤缺陷的关键所在。

To introduce the distinguishing and formation cause of such scab s as point dispersion tiny,block without root,turnup skin with root,point type,sawtooth,period block on the surface of wire rod made in Angang high speed wire rod mill.

介绍安钢高速线材表面点状弥散型细小结疤、块状无根结疤、翘皮状有根结疤、点状结疤、锯齿状结疤、周期性块状结疤的鉴别和形成原因，提出稳定连铸坯拉速、降低钢水过热度、提高钢水质量及连铸操作水平，使铸坯的表面和内在质量全面提高，是解决高速线材表面结疤缺陷的关键所在。

The author analyzed total oxygen content, nitrogen content in steel made by typical process and the inclusion composition, change rule, morphology and distribution qualitatively and quantitatively by image analyzer, big sample electrolysis, SEM and energy spectrum analysis. The results showed that final inclusion form was small granule MnS, calcium aluminate, a small quantity of silicate and lumpy Al2O3. By intensifying deoxidation alloying process control in converter, argon blowing and slagging control and desulphuration and calcium reduction operation in refining course and overall-protection casting, the oxygen content was reduced by 20% above averagely, nitrogen content was reduced by about 10% and the inclusion content was reduced by 30%.

通过全O、N分析，夹杂物图像分析仪、大样电解、扫描电镜及能谱分析，定性和定量分析了典型工艺钢种钢中全O、N含量和工序过程夹杂物的构成、变化规律及形态、分布，分析钢中最终夹杂物表现形式主要为小颗粒的MnS、铝酸钙、少量的硅酸盐和块状Al2O3，通过强化转炉脱氧合金化工艺控制、精炼过程吹氩与造渣控制及脱硫和钙处理操作、全程保护浇注，钢水中O含量平均降低20％以上，N含量降低10％左右，铸坯中夹杂物含量降低了30％。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。