1) high heat input welding
大线能量焊接
1.
Progress in Research on Structure and Properties of Heat Affected Zone of Steel for High Heat Input Welding;
大线能量焊接用钢热影响区组织和性能的研究进展
2.
Mechanical properties and microstructure of high heat input welding CGHAZ of Ce-Ca and Ce-Mg microalloyed steels
Ce-Ca、Ce-Mg微合金化钢大线能量焊接热影响粗晶区组织与力学性能研究
3.
The results show that WGJ510C2 steel has low cold-cracking sensitivity and superior weldability, and can be welded by high heat input welding.
试验结果表明 :该钢具有低的冷裂纹敏感性 ,其焊接性能优良 ,并能承受大线能量焊
2) large heat input welding
大线能量焊接
1.
There is a increasing market demand for the large heat input welding steel plates ,which become the developing trend of heavy plates.
大线能量焊接钢板具有广阔的市场前景,已成为厚板的发展趋势。
2.
A new low alloying steel with low susceptibility to weld cold cracking has been developed for large heat input welding in pressure vessel engineering.
结果表明:研制的新钢种集高强度(σs≥490MPa、σb≥610MPa)、高韧度(-20℃,Akv≥47J)、优异的焊接性能于一体,能够承受大线能量焊接(50kJ/cm),并具有低焊接裂纹敏感性。
3.
The mechanical properties and microstructure of the simulated coarse grain heat affected zone(CGHAZ) of a new large heat input welding HSLA steel in 600MPa grade were studied.
研究了一种低碳低合金600MPa级耐大线能量焊接用钢模拟大线能量输入焊接粗晶热影响区(简称CGHAZ)的微观组织及力学性能。
3) high heat input
大线能量焊接
1.
Development of fire-resistant and weathering construction steel weldable with high heat input and its typical use;
大线能量焊接耐火耐候建筑用钢的研制及应用
4) high heat input weld
大线能量焊接
1.
The WH610D2 steel plate for high heat input welding applications has been developed by means of TMCP procedures in a pilot scale.
本文针对实验室开发的WH610D2-TMCP钢板进行了不同工艺状态下钢板母材及大线能量焊接模拟HAZ力学性能试验研究。
5) Metallurgical technology of large heat input welding
大线能量焊接冶炼技术
6) steel for high welding heat input
大焊接线能量用钢
1.
According to the results obtained, it is clear that the steel of low-carbon Mn-Si-Cr system with F/B (or M/B) duplex phases is a new high strength steel for high welding heat input.
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。
补充资料：焊接线能量
焊接线能量
energy input
hanJ一ex一an nengllang焊接线能量(Energy Input)由移动热源输入给单位长焊缝的能量。焊接线能量是焊接过程中各种热现象的重要影响因素，它不但影响峰值温度的分布和冷却速度，还影响凝固时间，从而影响金属焊接接头的冶金特性和力学性能。其计算式为H~尸/v，式中H为线能量，J/mm;尸为由热源输入的总能量，W;v为热源移动速度，mm/s。若热源为电弧，则H~El/v，式中E为电弧电压，V;I为焊接电流，A。若要精确计算热源对焊件的作用，则Hne，~人，El/v，式中Hne:为净得线能量。fl为热传导系数，其值为实际传给工件的热能与热源产生的总能量之比。热影响区的宽度与H二:成正比，焊缝的冷速与H、，成反比，而凝固时间与之成正比。所以焊接线能量对金属焊接性有一定的影响。 (李维茜)
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