1) joint weldment
接头焊接
1.
Combined with concrete practice of project, it illustrates principle、task & features of hot aluminous weldment and introduces constructive method & main points of welding rails by hot aluminous weldment from aspects of constructive preparation、rail connection、joint weldment and so on.
结合具体工程实践,阐述了铝热焊的原理、任务及特点,从施工准备、对轨、接头焊接等方面,介绍了铝热焊焊接钢轨施工方法及要点,经实践证明,该技术达到了规定标准,经济和社会效益显著。
2) welded joints
焊接接头
1.
Fatigue properties of welded joints of 16Mn steel in super long life region;
超长寿命区间16Mn钢焊接接头疲劳性能
2.
CTOD fracture toughness test for super-thick welded joints of D36 offshore platform steel;
海洋平台用钢D36超大厚度焊接接头CTOD试验
3.
Experiment on dressing for improving fatigue strengths of welded joints with low transformation temperature electrode;
利用低相变点焊条熔修方法改善焊接接头疲劳强度的试验
3) welded joint
焊接接头
1.
Low temperature toughness of ultra low-carbon 9Ni steel welded joints;
超低碳9Ni钢焊接接头低温韧性
2.
Development of feature database of welded joint for the oil box based on Msc.Marc;
基于Msc. Marc的油箱结构焊接接头特征库开发
3.
Effect of heat treatment with protective coating on microstructure of D406A steel welded joint;
热处理保护涂料对D406A钢焊接接头显微组织的影响
4) weld joint
焊接接头
1.
Microstructure and properties of Al-Mg-Sc alloy weld joints filled with Al-Mg-Zr and Al-Mg-Zr-Sc weld wires;
含钪与不含钪铝镁钪合金焊接接头的组织与性能
2.
Stress corrosion cracking of weld joint of pipeline steel X70 in near-neutral solution;
X70钢焊接接头在近中性溶液中应力腐蚀行为研究
3.
Fatigue performance of weld joint for high strength bridge steel
高强度桥梁钢焊接接头疲劳性能的研究
5) welding joint
焊接接头
1.
Improving quality of Ti6Al4V welding joint by arc-excited ultrasonic treatment;
电弧超声改善Ti6Al4V焊接接头性能的研究
2.
Performance of the steel plate and welding joint for 10×10~4 m~3 oil storage tank;
10×10~4m~3原油储罐用钢板及其焊接接头性能
6) welding joints
焊接接头
1.
Study on anti-erosion performance of welding joints of1Cr18Ni9Ti or 1Cr18Ni9Ti with16MnDR;
1Cr18Ni9Ti同种金属及其与16MnDR异种金属焊接接头抗腐蚀研究
2.
Weldability and welding joints' corrosion resistance of high strength pipeline steels;
高强管线钢的焊接性及其焊接接头的耐腐蚀性
3.
The domestic X70 pipeline steel welding joints were tested by slow strain rate test,and the effect on welding joints of each factors were studied.
运用均匀设计方法,通过改变H2S溶液质量分数、Cl-质量分数、pH值和温度等溶液介质参数,对国产X70管线钢焊接接头在H2S溶液中进行慢应变速率拉伸应力腐蚀试验,分析介质参数对X70管线钢焊接接头腐蚀开裂的影响规律;通过扫描电子显微镜观察焊接接头试样断口的微观形貌,确定焊接接头应力腐蚀敏感性,得到H2S应力腐蚀导致X70管线钢焊接接头失效机理,并根据试验结果计算在各试验环境下的应力腐蚀敏感性指数。
补充资料：焊接接头晶间腐蚀
焊接接头晶间腐蚀
welded joint intercryctalline corrosion
honjle」}etou jingj旧n fush{焊接接头晶间腐蚀(welded joint intererys-talline eorrosion)在焊接接头处出现的沿晶粒边界发生的腐蚀现象。外观仍可有金属光泽，但实际上晶粒已失去联系，钢质已变脆。在奥氏体不锈钢部位有焊缝晶间腐蚀、敏化区腐蚀和刀状腐蚀等三种不同部位的晶间腐蚀。关于奥氏体不锈钢的晶间腐蚀机理有多种学说，其中以碳化物(如er23e。或(er、Fe)23e。等)在晶界沉淀现象的“贫铬理论”比较为人们所接受。所以为防止这类晶间腐蚀尽量降低含碳量，使焊缝金属含有一定量的稳定元素(如钦、妮等)以防止或降低晶界Cr23C。的形成。此外，焊缝的组织状态也有影响，单相奥氏体组织的焊缝有利于柱状晶的发达，出现贫铬层后会使腐蚀贯穿于晶粒之间，若焊缝为奥氏体了加高温铁素体占的双相组织，由于树枝状被打破，不能构成集中的腐蚀通道。高铬铁素体也会有晶间腐蚀，但与奥氏体钢不同的是从高温急冷下来即有晶间腐蚀倾向，可通过650一85oC加热、缓冷使铬扩散均匀化来消除贫铬层，防止晶间腐蚀。 (许祖泽)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条