查询词典 steel-shod

The fracture reasons of high strength PC steel wire are analyzed, it's considered that center segregation, central cavitation, poriness and inclusion are the metallurgical reasons which lead to the facture of PC steel wire and in the rolling process, differential coping quality, microcrack caused by surface defect, abnormal microstructure caused by burnt and improper cooling velocity, the ears on the head of the wire, overlapping of the wire rod itself are the main reasons which lead to the facture of PC steel wire. At the same time, inappropriate pickling, differential phosphorization quality, the bad heat treatment quality, the generation of crack in the improper drawing and transverse crack caused by abnormal laying of the drawing die are also the reasons of the cracking of PC wire.

对高强度PC钢丝断裂原因进行了分析，认为连铸坯的中心偏析、中心缩孔、疏松和夹杂是导致PC钢丝断裂的冶金原因；轧制过程中，较差的修磨质量、表面缺陷导致的微裂纹，过烧以及不适当的冷却速度导致的非正常显微组织，盘条头部的耳子、盘条本身折叠是导致PC钢丝断裂的主要原因；同时，不恰当的酸洗、较差的磷化及热处理质量、不适当拉丝裂纹的产生、拉拔模具安放不正导致的横裂也是PC钢丝断裂的原因。

Steel is used in two different ways in concrete structures: as reinforce steel and as prestress steel .

钢材以两种不同的方式应用与混凝土结构中：普通钢筋和预应力钢筋。

These documents should be proclaimed by the steel productor.our company are only the steel supplier rather than steel productor,so we have no rights to make with this kind of statement 2.a so-called specification as well as we called XXX is the one which can provide it for your company if you want

此资料应该由钢铁生产商来作出声明，本公司为材料供应商，不能作出这个声明。 2。所谓的&规格书&，我们就称为XXX，我们可以应贵司要示提供给贵公司。

Major factors affecting liquid steel decarburization and recarburization in the process of RH vacuum treatment and continuous casting of extra low carbon steel were analytically studied based on datum obtained from the previous experiments and measures to be taken for promoting liquid steel decarburization and preventing it from recarburization recommended as well.

根据试验数据分析并研究了超低碳钢在RH真空处理和连铸过程中，影响钢水脱碳与增碳的主要工艺因素。

The reoxidation mechanisms of IF steel containing Al and Ti by reducible oxides in the slag were analyzed. A model of predicting total oxygen in the molten steel was established based on the reoxidation mechanisms. It was found that two different reaction mechanisms existed when and in the slag reoxidated the molten steel.

分析了IF钢冶炼过程中渣对钢液中、的氧化机理，在此基础上提出了IF钢加铝脱氧后全氧的预测模型结果表明，熔渣中、对钢液的二次氧化存在两种方式。

The CAC refining technology has characteristics such as reducing molten steel reoxidation,lengthening argon-blowing time,reducing the inclusion in steel and improving the alloy recovery and the molten steel quality and so on.

CAC是利用在钢包上加惰性气氛包盖使钢水与包盖间充盈烟气和氩气形成高温惰性气氛，以避免钢水的二次氧化，减少钢水温降，并延长吹氩时间。

H- section steel in the Section Steel Plant , rough rolled, directly enters the finishing mill train, causing some parts in the surface pressed in by reoxidation rolling scale, influencing the appearance of the steel.

型钢厂中型线的H型钢经粗轧后，直接进入精轧机组，造成表面部分二次氧化铁皮压入，影响了钢材的外观形象。

Our factory devotes in developing and producing easy to cut steel, the stainless steel, the rustless iron and each kind of alloy steel and so on.

本厂致力于开发与生产易切削钢，不锈钢，不锈铁及各种合金钢等。

In the past seral years of development, our company assets up to 50 million , become the first class agent of Baoshan iron and steel plant , Chengdu steel plant, Baotou steel alt at so.

公司拥有九条管件、四条三通、异径管生产线，年产各种材质型号的管件四万吨。

Through a series of quenching, tempering, tensile testing, low-temperature impact test and metallographic analysis, we ultimately came to the following conclusions:(1) low-carbon alloyed steel 20CrMn2NiMoV quenching at 870℃ and tempering at 200℃, whose structure contains tempered dislocation lath martensite and few small bainite under mixed, has the best obdurability;(2) Carbon Steel 45CrMn2NiMoV quenching at 850℃ and tempering at 620℃, whose structure is sorbitic, has a performance less than that of low-carbon Alloyed steel, but it can also meet the basic design requirements.(3) Mn can substitute for the role of Ni within limited extent.

通过一系列淬火、回火、拉伸试验、低温冲击试验以及金相分析，最终得出以下主要结论：（1）低碳合金钢20CrMn2NiMoV经870℃淬火+200℃回火，得到回火位错型板条马氏体+少量细小下贝氏体的混合组织，具有最佳的强韧性配合；（2）中碳合金钢45CrMn2NiMoV经850℃淬火+620℃回火，得到回火索氏体组织，综合性能虽然不及低碳合金钢，但也能基本满足设计要求；（3）Mn在一定程度上能够替代Ni的作用，适量的Mn和Ni相互配合可以得到最佳的低温韧性，因此&以Mn代Ni&是低温钢材料研究开发中一条可行的适合我国资源状况的合金化思路。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。