This article discusses causes of weld cracking in crane's steel structure, recommends ways of remedy and makes proposals concerning design and fabrication to avoid cracks.
本文论述几种起重机钢结构焊缝裂纹产生的原因，提出焊缝裂纹的修复方法和起重机钢结构设计、制造中防止焊缝开裂的改进措施。
There are reactor coolant system weld issues, they're used and they're getting primary water stress corrosion cracking.
还有反应堆冷却剂系统焊接问题，它们使用了并且得到原生水,应力腐蚀裂痕。
The influence of Lanthanum, Cerium, Yttrium, Praseodymium and Neodymium on weld hot cracking susceptibility of the pure nickel electrode used for cold welding of cast iron was studied.
研究了纯镍铸铁焊条冷焊时，稀土金属镧、铈、镨、钇及钕对焊缝热裂纹敏感性的影响规律，并分析了铈对焊接接头力学性能和加工性能的影响。
Weld with trailing impactive rolling (WTIR) is a new technique to reduce the residual stress and distortion and prevent hot cracking of thin-walled structure.
随焊冲击碾压是一种控制薄壁结构焊接应力变形、防止热裂纹的新方法。
The circumferential cracking of the skirt weld is a serious defect, which commonly exists in the coke tower in service.
焦炭塔裙座焊缝环向开裂是现役焦炭塔普遍存在的一种严重缺陷。
In this paper, the fracture of grey cast iron weld has been observed by SEM, and the mechanisms of the cracking initation and progression have been discussed.
通过灰口铸铁同质电弧冷焊焊缝断口宏观与显微分析，对灰口铸铁焊缝裂纹的形成及扩展机理进行了探讨。
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。
This paper briefs the fractures of fillet weld of manhole reinforcing plate in react ion tower of thermal cracking plant and its repairing welding.
本文简要介绍了热裂化装置反应塔入孔加强板角焊缝的断裂及其补焊情况。
Using 945 steel and 921a steel, this article studies the effect of weld profile and size on the cracking behavior of a central notch in a three-notch specimen for an explosion bulge test.
选用水面舰艇用945钢和潜艇用921a钢，研究了不同焊缝外形尺寸对爆炸试验中三缺口试样的中央缺口开裂行为的影响。
The increase of weld current can reduce the hardness and the content of upper bainite, and lower the sensibility of hydrogen cracking of the joints.
在避免烧穿的前提下增大焊接电流能够减小硬度、减少上贝氏体，从而降低氢致开裂敏感性。
The rupture reasons of tube joint weld of the stainless steel pressure meter are analyzed. It is characteristic of stress corrosion cracking and inter granular fracture.
分析了不锈钢压力表管接头焊缝开裂的原因，认为此种开裂具有应力腐蚀开裂、沿晶断裂特征。
The front impact roller causes transverse plastic compression strain in the weld which is in the brittle temperature range, which counteracts the tensile strain which leads to hot cracking.
前轮对处于脆性温度区间的焊缝金属施加一个横向挤压塑性应变，减小甚至抵消致裂的拉伸应变，防止了焊接热裂纹的产生。
In this paper, the temperature field of weld metal solidification cracking in the stainless steel was analyzed and simulated.
进行了不锈钢焊接凝固裂纹温度场分析与数值模拟。
The causes of weld overlay cracking on hydroprocessing reactors and the effect on serviceability were analyzed in this paper.
分析了加氢反应器堆焊层裂纹的成因与对使用的影响。
The reason for preventing the weld joint from cold cracking with this kind of insulator to keep the weldment cooling slowdown is discussed also.
探讨了硅酸铝保温缓冷焊接条件下能防止焊接冷裂纹的原因。
It was found that the solidification cracking susceptibility of weld metal increases remarkably as nickel content increases.
结果表明：随着焊缝中含镍量的增加，焊缝金属的凝固裂纹敏感性增大。
Disadvantages include risk of hydrogen cracking in carbon steels and weld metal porosity in aluminium alloys.
缺点是在碳钢中有氢致裂纹、铝合金中有焊缝气孔产生的危险。
Abrasion and corrosion of heating surface, superheater tube cracking and weld leakage are the main cause of waste heat boiler breakdown in sulphuric acid plant.
硫酸废热锅炉故障主要是由受热面管子的磨损、受热面的腐蚀、过热器爆管及焊缝漏水等引起的。
The improvement of microstructure leads to a considerable reduction of the susceptibility of hot cracking of weld metal as indicated by the transverse-varestraint test.
增加焊缝中的共晶数量并改善其分布形态，从而有助于降低焊缝金属的热裂纹敏感性。
Through material, weld material, weld technology. Analyses the reason when cracking-fusion product in line pan. Introduces a method of preventing cracking-fusion production.
从原材料、焊接材料、焊接工艺三方面分析了中部槽产生裂纹的原因，从而得到一种避免裂纹产生的方法及预防措施。
Cracking resistance of ultra-low cabon Cu-bearing age-hardening steels was studied in this paper by computing, maximum hardness in weld heat-affected zone test and Y-groove cracking test.
采用理论计算、热影响区最高硬度试验和小铁研试验方法研究了超低碳含铜时效钢的抗裂性。
Some plastic regions could be found and some dimples had been observed on the fracture surfaces of the solidification cracking of austenitic-ferritic weld metals.
少量铁素体的焊缝凝固裂纹断口上有许多小塑性区，有明显的韧窝。
Neodymium can increase weld metal hot cracking susceptibility of the pure nickel electrode used for cold welding of cast iron.
纯镍铸铁焊条中加入稀土钕会增加焊缝热裂敏感性。
A new large heat input welding high strength low alloy steel with low susceptivity to weld cold cracking was developed and the cold strain aging behavior was investigated.
研制了一种低焊接裂纹敏感性高能量输入焊接用低合金高强钢，并研究了其冷应变时效行为。
The causes of weld overlay cracking on hydroprocessing reactors and the effect on serviceability were analyzed in this paper.
由于壳体基材有高的断裂韧性，堆焊层裂纹不会扩展到壳体基材，堆焊层裂纹不影响加氢反应器的使用性。
A new low alloying steel with low susceptibility to weld cold cracking has been developed for large heat input welding in pressure vessel engineering.
试验结果表明，该钢具有焊接冷裂纹倾向低、可用大线能量焊接、焊后不宜进行消氢处理等特点，可用作高强度大焊接线能量用钢。
The reason of the Weld Joint Cracking on high frequency welding pipe was investigated by using macroscopic observation, metallographic technology, fracture analysis and EBSD technology.
本文通过使用宏观观察、金相分析、断口分析和电子背散射衍射（EBSD）等分析手段对高频焊管焊后弯管开裂的原因进行了分析。
The reason of the Weld Joint Cracking on high frequency welding pipe was investigated by using macroscopic observation, metallographic technology, fracture analysis and EBSD technology.
本文通过使用宏观观察、金相分析、断口分析和电子背散射衍射（EBSD）等分析手段对高频焊管焊后弯管开裂的原因进行了分析。
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