Through analysis on inside weld forming and welding procedure of SSAW pipe it pointed out weld crack is easy to appear in brittle temperature zone in welding pool .

通过对螺旋埋弧焊管内焊缝成型和焊接过程的分析，指出 焊缝 裂纹易产生在焊接熔池脆性温度区。

To do mycology analysis to the blank parent and its cracking weld for different procedure treatment to the blank before welding and occur weld crack during welding forming by different welding method .

用不同焊接方法，对坯料焊前作不同工艺处理，焊接成形时出现 焊缝 开裂，对其坯料母材及开裂焊缝作显微分析。

Coke tower is the key equipment in delayed coking unit in oil refinery . High temperature cyclic temperature fatigue and coking and decoking process may bring about local serious deformation and base metal weld crack on the tower in a long time service .

焦炭塔是炼油厂延迟焦化的关键设备，长期在高温及充焦和除焦的冷热疲劳作用下运行，塔体常出现局部严重变形和母材 焊缝 开裂问题。

The influences of nickel-based alloys spraying layer on the weld crack sensitivity were studied through simulating actual welding experiment in this paper .

通过模拟实际焊接试验，研究了镍基合金喷焊层对 焊接 裂纹敏感性的影响。

Weld crack is one of the major failure modes during its normal work process .

焊缝 开裂 甚至 断裂 是 刀盘工作中的主要失效形式之一。

Cause Analysis of Weld Crack on 20R + 410S Clad Plate Head and Its Repair Technology

20R+410S复合板封头 焊缝 裂纹原因分析及修复工艺

Analysis and Control to Weld Crack of Spiral Welded Pipe with Small Forming Angle

小成型角螺旋焊管 焊缝 裂纹的分析与控制

12 guide blade during the second routine repair . Except that a crack on No. 15 guide blade is the previous weld crack other cracks on No.

除15号导叶有一条裂纹为上一次 焊缝 裂纹外，4号1、5号导叶的其他裂纹为 新增 裂纹，针对这一情况进行分析和处理。

The combined weld crack failure of tensile brace tube and local buckling failure of compressive brace tube .

受压支管端部局部屈曲与受拉支管 焊缝 断裂的联合破坏。

Analysis for inner weld crack in middle-pressure gas tank

中压气罐 焊缝内 裂纹分析

The effects of three kinds of combined weld on the weld crack of medium-carbon alloy steels are studied by using slit type cracking test and microscopic analysis method .

采用Y形坡口裂纹试验和显微分析方法，研究了三种不同的组合焊缝对中碳合金钢 焊接 裂纹的影响。

An expert system of welding crack diagnosis based on knowledge base is posed according to the analysis of characteristic of weld crack .

从分析 焊接 裂纹的特点出发，提出了基于知识库的焊接裂纹诊断专家系统。

The hydrogenation pipe would weld crack after running for some time as high temperature and high pressure and the phenomenon was rare .

高温高压临氢管道运行一段时间发现 多道 焊缝 裂纹，较为罕见。

This article introduces the weld crack happened to the bulletproof steel plate of a naval ship analyzes its reasons and presents prevention measures .

文章介绍了某型舰船防弹钢板 焊接 裂纹的情况，对原因进行了分析，并提出了一些相应的预防措施。

The sensitivity exponent of weld crack is calculated .

计算了 筒 体 材料 的 焊接 冷 裂纹敏感性指数；

Reason and control countermeasure of the weld crack happened to the bulletproof steel plate of the naval ship

某型舰用防弹钢板 焊接 裂纹的原因分析及控制

The application status of magnetic particle testing penetrant testing eddy current testing radiographic testing and ultrasonic testing in weld crack inspector were introduced .

介绍了磁粉检测、渗透检测、涡流检测、射线检测和超声波检测技术在 焊接 裂纹检测中的应用状况。

Inside Weld Crack Analysis and Control of SSAW Pipe

螺旋埋弧焊管内 焊缝 裂纹分析与控制

To the U type weld crack origin nated in weld material then enlarged to HAZ simulation gave good prediction for this process .

U型 焊缝宏观 裂纹产生于焊缝，最后向热影响区扩展，有限元仿真也很好的预测了这一过程，验证了模型的正确性。

Analysis of weld crack of crane 's steel structure

起重机钢结构 焊缝 裂纹的研究

Reason Analysis and Treatment of Weld Crack in Water Drain Valve Base of Spiral Casing in Longtan Hydropower Station

龙滩电站蜗壳排水阀阀座 焊接 裂纹 产生原因及处理

Some new technologies such as infrared thermal imaging laser holography and microwave testing were prospected in the testing of weld crack .

对红外热成像检测、激光全息检测和微波检测新技术在 焊接 裂纹检测中的应用进行了展望。

Analysis & modification on weld crack of furnace pipe in the boiler for recovering waste heat

废热锅炉炉管 焊接 裂纹分析及改造

The main reason is the effect of weld toe and weld crack on the fatigue limit .

疲劳断口分析认为， 焊缝的焊趾和 裂纹是影响高强钢疲劳强度的主要原因。

The temperature regulator tube plate and steel tube beam work in the frequent change of temperature for a long time their high alternating pressure make the tube plate 's weld crack and tube beam leak .

减温器管板和钢管束长期工作在频繁变化的温度中，交变压力很大，造成管板 焊缝 处经常 开裂，管束泄漏。

Nondestructive testing research and followed site verification was carried out for the lots in-service urea reactor layer and weld crack defects and acquired a reliable multilayer urea reactor detection method .

针对大量在用尿塔层板和 焊缝 裂纹缺陷，进行了无损检验研究工作，并进行了现场解剖验证，得到了较为可靠的尿塔检验方法。

Influences of nickel-based alloys spraying layer on weld crack sensitivity of compound steel pipe

复合钢管中镍基合金喷焊层对 焊缝 裂纹敏感性的影响

Weld crack controlling for closed rib joint of highway steel stayed-cable bridge

公路钢斜拉桥闭口肋 焊接 裂纹的控制

Influence of laser shock processing on properties of SiC_p / Cu composite weld crack restored by electro-spark overlaying

激光冲击对电火花修复SiC p/Cu复合材料 裂纹力学性能的影响

Weld Crack Existing in Long Natural Gas transportation Piping and Prevention Methods

天然气长输管道 焊接 裂纹及防范对策