上体左、右半壳直焊缝视产品结构不同，分别采用对接熔化焊和搭接缝焊工艺。
According to the different product structure, butt fusion welding process and lap seam welding process are used to respectively weld left and right half shell of upper body.
看到导游的导游看到的直缝埋弧焊只有大约2高。
它是现代高频直缝焊管生产线和冷弯型钢生产线的主要设备之一。
It's one of the main machines in the modern pipe mill line and formed section line.
当前一些直缝焊管机组所配备的垂直进锯型飞锯因易造成切断端面严重变形，不适合锯切正位生产的方矩型类管材。
The vertical feed fly saw, equiped on most straight welding pipe sets, can not be suitable to cut square shaped pipes because of serious deformation on the cut face.
在大量生产实践的基础上分析了影响ERW直缝电阻焊钢管焊缝冲击韧性的各种因素。
The article analyzes that all factors effect impacting toughness of welded seam of ERW pipe on the basis of mass produce and practice.
在现代的直缝焊管生产中，轧辊与管坯间的接触压力分布是一个非常重要的参数。
During the modern longitudinal seam welded pipe production, the contacting pressure distribution between the roller and pipe is a very important parameter.
简要介绍了直缝焊套管国内外使用情况，生产技术以及国内外生产现状，目前正在进行的一些试验研究工作。
It is introduced in brief that the domestic and foreign employed situation of straight welded casing, manufacture technology and production condition, and some researches being done at present.
钢制干货集装箱生产中薄板自动焊焊接质量一直不稳定，客户投诉较多。
The weld quality of auto welding in steel container manufacturing is always unsteady and gets more complaints from customers.
介绍了俄罗斯直缝埋弧焊钢管和螺旋缝埋弧焊钢管的生产设备和工艺等制管技术以及独特的热处理管线钢管的特点。
The characteristic of pipe manufacturing technology and its unique heat-treatment pipe for pipeline for production units and processes of Russian LSAW pipes and SSAW pipes is introduced.
从设计规范与管材选用方面对电阻焊碳钢直缝钢管（ ERW）的特点进行了分析。
The features of electric resistance welded(ERW) carbon steel pipe are analyzed from the viewpoint of design code and material selection.
直缝焊管；图像处理；图形识别；机器视觉；椭圆。
LSAW pipe; Image processing; Pattern recognition; Machine vision; Ellipse.
介绍了一种快速分析高频直缝焊管焊接质量的方法——酸洗试验。
The rapid analysis method of welding quality, acid washing test, for the longitudinally high frequency welded pipe is introduced.
目前，国内带有立辊组的直缝焊管成型机大都采用双半径孔型。
The double radius hole type was commonly adopted for the forming machine of straight weld pipe with vertical roller in domestic present.
对X80钢级直缝埋弧焊管管体的应变时效行为进行了试验模拟，结果与分析相吻合。
Then the strain aging behavior of X80 grade LSAW pipe body was conducted a test simulation and the result coincide with the former analysis.
为满足市场对复合管的需求，对于我国直缝焊管机组改造有借鉴作用。
Furthermore, to meet the needs from market, it is helpful to reconstruct the existing longitudinally welded tubing mill in our country.
本文概述钢制对焊高压带直段弯头的开发。
This paper describes the development of high - pressure steel butt welding bends with straight ends.
飞锯是直缝焊管生产线上的关键设备之一。
The flying sawing machine is one of the key units of the straight welded pipe production line.
简要介绍了高频直缝焊管内毛刺的形成和清除方法。
Briefed in the article are the inner burr formation of and the burring method for the hi-frequency straight welded tube.
从理论和实践方面论证了成组技术在高频直缝焊管生产中应用的必然性、可行性。
The inevitability and feasibility of application of the grouping technique to production bf hi-frequency welded tubes are discussed from both theoretic and practical point of views.
介绍了全焊透t型角焊缝超声波探伤的两种方法：单直探头法和单斜探头法。
Two methods for ultrasonic flaw detection of T-fillet welds with complete fusion are presented, i. e. Single straight probe and single tilting probe techniques.
限热槽通常用于直插元件的内电层以利于焊接和拆焊。
A thermal relief is used on plane layers for thru-hole components to make soldering and desoldering easier.
X级管线钢板材是生产直缝埋弧焊管的主要原材料。
The X grace steel sheet is used as main material for SAW straight weld pipes for pipe line purpose.
用切块法实测了某大口径X70双面直缝埋弧焊管内的残余应力。
The residual stress in a heavy caliber X70 double-surface straight-seam submerged arc tube was measured using the piece-cutting method.
直缝埋弧焊管焊后残余应力是导致焊管应力腐蚀裂纹产生的主要原因。
Residual stress of longitudinal submerged arc welded pipe after welding is the major reason caused welded pipe stress corrosion crack, its stress level directly decide pipeline safety in service.
根据国内管道建设的需要，建议尽早引进一条直缝埋弧焊管机组。
According to the domestic pipeline construction demand to the pipe, it is proposed to import a longitudinal seam SAW steel pipe mill as early as possible.
直缝埋弧焊管是长距离输送石油、天然气的主要管线产品，钢管由厚钢板压制成形。
LSAW pipes, made by thick steel plates through compacting, are main pipeline products for long-distance transportation of oil, natural gas.
宝钢开发以热连轧方式生产用于制造直缝埋弧焊管的海底管线用x 65级管线钢板，其产品具有高强度、高韧性和良好的焊接性等综合性能。
The grade X65 pipeline steel used for LSAW submarine line pipe has been developed at Baosteel, which is produced by hot continuum rolling processing.
宝钢开发以热连轧方式生产用于制造直缝埋弧焊管的海底管线用x 65级管线钢板，其产品具有高强度、高韧性和良好的焊接性等综合性能。
The grade X65 pipeline steel used for LSAW submarine line pipe has been developed at Baosteel, which is produced by hot continuum rolling processing.
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