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    Effect of Groove Shapes of Welding Joints on Weld Mechanical Properties of 45CrNiMoV Steel
    坡口形式对45CrNiMoV钢焊缝性能的影响
    The effects of groove shapes of I,U . double U and V on weid mechanical properties of high strength steel 45CrNiMoV in 7mm thick was investigated.
    报导了具有I、U、双U和V型四种坡口形式对7mm的45CrNiMoV高强度钢板材对接焊缝性能影响的研究。
    This paper introduces the design concept of a special milling machine applicable in particular for grooving nonferrous metallic pipes,and the composition and working principle of hydraulic servo system for controlling planeness accuracy to end face of groove.
    介绍了适于加工有色金属管件坡口的专用铣床设计方案和为保证坡口端面平面度精度的液压随动控制系统的构成及其工作原理。
    The GTAW techniue of φ18 mm x 3 mm 20#carbon steel pressure gauage tube was introduced. The welding technolgy included the choice of groove, the welding parameters & operation technique, etc.
    介绍了Φ18mm×3mm 20#高压仪表管的氩弧焊焊接工艺,该工艺包括坡口的选用、工艺参数、操作等关键技术。
    Based on the cause analysis of welding angular deformation of spherical storage tank, discusses the processing measures for reducing and control of welding angular deformation, type of groove, rigidity fixed method and welding sequence.
    在分析球形储罐焊接角变形产生原因的基础上,从焊接坡口形式、刚性固定方法和焊接顺序等方面探讨了减小和控制焊接角变形的工艺措施。
    Baste on stainless composite steel plates 16MnR+0Cr13,the welding performance,welding process,welding materials,type of groove,NDE and PQR were studied. Suitable welding procedure was chose and the welding procedure were applied successfully in welding production.
    针对复合钢板16MnR+0Cr13,从焊接性、焊接方法、焊接材料、焊接坡口、焊后无损检测的选择、焊接工艺评定等几个方面进行探讨,确定合适的焊接工艺,并将其成功应用于实际的焊接生产中。
    STUDY ON THE EFFECT OF GROOVE SHAPES TO THE MECHANICAL PROPERTIES OF DIFFERENT MATCHING WELDED JOINTS
    焊接坡口形式对不同匹配焊接接头性能的影响研究
    APPLICATION OF THIN WIRE SAW IN BACKING WELDING OF GROOVE FOR BOX DIAGONAL WEB MEMBERS OF MAIN SPAN GIRDERS OF WUHU BRIDGE
    细丝埋弧焊工艺在芜湖桥主跨箱型斜杆焊接坡口打底焊中的应用
    Setting Out Method of Groove Line of Excavation of Earth or Stone Section
    公路挖方段坡口线的放样方法
    (4) By use of the damage coupled finite element method, issues of the failure mode and efficiency of life extension in repair welding have been studied. The influence of groove width of welds, optimal weld repairing time, damage in full and partial repair weld have been obtained.
    (4) 利用连续损伤力学理论对焊接件的补焊问题进行分析,模拟计算了补焊件的失效模式、延寿效率等问题,同时还对补焊件坡口宽度的影响、最优补焊时间、全补焊和部分补焊等问题进行了初步的探讨。
    By welding condition test, the size of groove, welding parameters and welding procedure can be determined.
    通过焊接工艺试验,确定了焊缝的坡口尺寸、焊接工艺和施焊程序。
    This paper introduces the welding technology of this typical steel from its welding materials,methods,processes and the type of groove thereof.
    本文从不锈复合钢板的焊接材料、焊接方法、焊接顺序、坡口型式等方面详细介绍了这种特殊钢材的焊接技术。
    This paper introduces some technical experience in the welding procedure of full position vertical down welding of pipeline using alkaline low hydrogen type electrode,and also introduces its type of groove,width of root face,and the angle of electrode. Besides,it recommends welding code.
    本文对碱性低氢型焊条管道全位置下向焊的焊接工艺、坡口型式、对口尺寸、运条角度及方法等操作技术经验予以介绍,并推荐了焊接规范。
    In order to realize automatic deviation of welding process and controlling of welding quanlity, the relative position of weld seam and geometrical parameters of groove must be measured.
    为了实现电弧焊过程的自动对中和焊缝质量控制,必须对焊接缝隙的相对位置和坡口几何参数进行检测.
    The wclidng procedure for longitudinal seam of large diameter pressing steel pipe is determined through the study of groove type and welding parameters, with CO2 welding inside the pipe and narrow gap submerged arc welding outside the pipe.
    通过对大口径有缝钢管压制及纵缝焊接工艺的研究. 确定了合理的坡口形式,以及内缝CO_2焊+外缝窄间隙埋弧焊的焊接工艺参数.
    This paper presents a thorough study of the effect of groove shapes X & V on the mechanical properties of the different matching welded joints, including impact toughness, hardness and tensile strength.
    研究了X、V型两种不同的坡口形式对不同匹配的压力容器用钢16MnR对接接头的冲击韧度、硬度、抗拉强度等力学性能的影响。
    This paper introduces the process method and process evaluation of groove back welding of the thin wire SAW as well as its application in the groove back welding of the box diagonal members of the main span girders of the Wuhu Bridge The choosing reasons and the process fundamentals are given and a new path of the groove back welding is also pointed out
    介绍细丝埋弧焊坡口打底焊的工艺方法、工艺评定及在芜湖长江大桥箱型斜杆坡口打底焊中的应用情况 ,提出了坡口打底焊焊接方法的选择依据和工艺原理 ,指出了坡口打底焊的新途径
    It is imperative that we import and spread vertical bar pressure submerged arc welding technology, and it replaces old technology of groove welding, tie welding, binding strip welding and so on. It can not only improve effect, save bars, ensure quality of welding, reduce cost of engineering, but also improve working environment of workers.
    因此 ,引进和推广钢筋竖向压力埋弧焊工艺 ,以取代旧的坡口焊、搭接焊、绑条焊等工艺势在必行 ,它既能提高功效、节约钢筋、确保焊接质量、降低工程成本 ,又能改善工人的劳动环境。
    First, through actual observation, the slope of ground lines is calculated, and then calculating coordinate formula of groove points is derived combined with design falling gradient of protecting slope, at last settingout is actualized.
    通过实测并计算出坡口点所在地面线上的坡度,结合护坡设计坡度,推导出计算坡口点坐标公式。
    In this paper, the basic principles and influencing factors in the welding groove selection and design of pressure vessels are analyzed. Based on the subjective Bayes method, a total probabilistic reasoning model for approximate reasoning is presented. The welding base metal database, welding materials database and welding technology database are built, and the computer aided reasoning system of groove selection and design is realized.
    分析了压力容器焊接坡口设计的基本原则和影响因素 ,从主观贝叶斯方法基础上得到焊接坡口选择的不精确推理的全概率推理模型 ,建立焊接母材库、焊材库和工艺库 ,实现了计算机辅助焊接坡口选择的推定系统。
 

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