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arc
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  电弧
    RAPID MELTING IN ELECTRIC ARC FURNACE AND VACUUM REFINING OF SPECIAL STEELS
    特殊钢的电弧炉快速冶炼和真空精炼
短句来源
    APPLICATION OF SINGLE-SLAG PROCESS TO ELECTRIC ARC FURNACE MELTING
    电弧炉单渣法冶炼工艺的应用
短句来源
    THE CONTINUOUS STEELMAKING PROCESS IN ELECTRIC ARC FURNACE
    电弧炉的连续炼钢工艺
短句来源
    The Application of Computer to Electric Arc Furnace Steelmaking
    计算机在电弧炉炼钢中的应用
短句来源
    A NEW ARC FURNACE BURNER SYSTEM——SPLIT-FIRE BURNER
    一种新型的电弧炉用烧嘴——分燃式烧嘴
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  “arc”译为未确定词的双语例句
    ENERGY SAVING OPERATION OF ELECTRIC ARC FURNACE FOR ORDINARY STEEL PRODUCTION
    电炉生产普通钢的节能措施
短句来源
    An Improvement in the Cover of 10t Arc Furnace
    10t炼钢电炉炉盖的改进
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    STEELMAKING IN ELECTRIC ARC FURNACE WITH GAS BLOWING BOTTOM
    底吹电炉炼钢
短句来源
    INDUSTRIAL TEST OF SLAG FOAMING MELTING PROCESS IN ELECTRIC ARC FURNACE
    电炉熔氧期喷碳泡沫渣冶炼的工业性试验
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    FULL AUTOMATION FOR DC ARC FURNACE
    直流电炉的全自动化
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  arc
Let Γ be a smooth compact convex planar curve with arc length dm and let dσ=ψ dm where ψ is a cutoff function.
      
The circulant digraphDCn(S) is a directed graph with vertex setZn and arc set {(i,i+s): i ∈ Zn, s ∈ S}.
      
ThenCn(S) is arc-transitive if and only if Xoacts transitively onS.
      
A packing of the complete directed symmetric graph DKv with m-circuits, denoted by (v,m)-DCP, is defined to be a family of arc-disjoint m-circuits of DKv such that any one arc of DKv occurs in at most one m-circuit.
      
It is proved that there is no chaotic group actions on any topological space with free arc.
      
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A strong trend of carrying out the steel refining operation in the ladle in stead of the furnace has been observed in the principal steel-producing countries. This new refining process is termed "ladle-refining" or "secondary steelmaking". It is discussed in three parts: (a) The development of various ladle-refining process including vacuum(or decreased pressure) refining and normal pressure refining such as synthetic slag treatment, argon stirring (Gazal, CAB, and SAB processes), vacuum degassing (VC, SLD,...

A strong trend of carrying out the steel refining operation in the ladle in stead of the furnace has been observed in the principal steel-producing countries. This new refining process is termed "ladle-refining" or "secondary steelmaking". It is discussed in three parts: (a) The development of various ladle-refining process including vacuum(or decreased pressure) refining and normal pressure refining such as synthetic slag treatment, argon stirring (Gazal, CAB, and SAB processes), vacuum degassing (VC, SLD, TD, TD-VC, TD-SLD, RH, DH, Finkl and Gazad processes), ladlerefining with arc-heating (ASEA-SKF, Finkl-VAD and LF Processes), jet metallurgy (CAB/TN and SL processes), and stainless steel refining (AOD, CLU, VOD, SS-VOD, K VOD/VAD, RH-OB and VODC processes); (b) present situation of secondary steelmaking technology in China; (c) problems to be solved for successful adoption of secondary steelmaking prooesses. Besides, there are technical data concerning secondary steelmaking process shown in attached tables and figures.

世界上主要产钢国家,炼钢工艺的一个主要发展趋势是在钢包中对钢水进行精炼处理,即炉外精炼或叫做二次炼钢.本文分三个方面进行讨论:(1) 各种炉外精炼法的发展,包括真空(减压)精炼和常压精炼,例如合成渣洗、吹氩搅拌(Gazal、CAB、SAB法)、真空脱气(VC、SLD、TD、TD-VC、TD-SLD、RH、DH、FinKl和Gazid法)、带电弧加热的炉外精炼(ASEA-SKF、FinKl-VAD和LF法)、喷射冶金(CAB/TN和SL法)以及不锈钢的精炼法(AOD、CLU、VOD、SS-VOD、KVOD/VAD、RH-OB和VODC法),(2) 我国炉外精炼技术的现状,(3) 发展炉外精炼必须注意的一些问题.

The dry gunning technology of hot repairing steel vessel lining has been studied. Pitch is used as a binder of gunning material. In comparison with the traditional wet and semi-dry gunning, there are two principal peculiarities in thistechnology--water isn't used in the process and a carboniferous refractory liningis formed after gunning. Cooperated with Beijing Special Steel Plant and Shanghai the Third Steel Plant, excellent results were obtained for St arc furnace and 2St BOF vessel respectively. Owing...

The dry gunning technology of hot repairing steel vessel lining has been studied. Pitch is used as a binder of gunning material. In comparison with the traditional wet and semi-dry gunning, there are two principal peculiarities in thistechnology--water isn't used in the process and a carboniferous refractory liningis formed after gunning. Cooperated with Beijing Special Steel Plant and Shanghai the Third Steel Plant, excellent results were obtained for St arc furnace and 2St BOF vessel respectively. Owing to the protection of the slag line by dry gunning, arc furnace life increased from 50-60 to 264 heats. With brick sticking technic used in the Third Plant, through repairing the damage position by dry gunning, the life of the BOF vessel lining increased from 954 to 3000-5000 heats, the highest one attained to 10659 heats. Practice in plant proves that this technology has manyadvantages,--such as resourceful raw materials, simple and convenient instrumentand operation, low power consumption, etc.

研究了以沥青作结合剂的炼钢炉干法热喷补工艺。与传统的湿法和半干法热喷补方法相比,本工艺的主要特点是喷补过程中完全不用水;喷补后形成含碳耐火层。与北京特殊钢厂和上海第三钢铁厂合作,分别在5吨电炉和25吨转炉上进行试验,取得了良好结果。用干法热喷补工艺维护渣线,使电炉寿命由50~60次提高至264次,结合上钢三厂原有的“贴补”工艺,喷补炉衬的损坏部位,使转炉寿命由954次提高至3000~5000次,最高达10659次。实践证明,本工艺具有原材料来源丰富,喷补装备简单、操作技术易于掌握,能耗低等优点。

Through analyzing and studying a great number of data measured, we have found that the electric arc furnace with watercooled walls with slag has its own characters of heat transfer loss in comparison with that with magnesite walls. Results show that the amount of heat transfer loss per hour through the water-cooled walls with slag is:

通过对大量实测数据的分析研究,发现水冷炉壁电弧炉具有不同于镁砂炉壁的散热特征.1) 通过水冷炉壁的小时散热量,随冶炼炉数的增多而缓慢增加;在有限的炉数区间内,小时散热量处于相对稳定状态.2) 通过水冷炉壁的小时散热量,同所选用的水冷块质量关系极大.3) 通过水冷炉壁的小时散热量,同所采用的冶炼方法有关;不氧化法冶炼的小时散热量大于氧化法.被测电炉连续运行了54天,生产了307炉优质钢.观测工作进行了45天.

 
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