1) welding heat input
焊接线能量
1.
The microstructure of the deposited metal and the effect of the welding heat input on the formation of the deposited metal are studied.
分析了堆焊熔敷金属的显微组织,研究了焊接线能量对堆焊层金属显微组织形成的影响。
2.
In this article,the microstructure and micro-hardness of deposited weld metals are analyzed separately by optical microscope and micro-hardness instrument,and the effect of the welding heat input on the formation of the deposited metals is also considered.
对堆焊熔敷金属的显微组织进行了分析,测试了堆焊熔敷金属的显微硬度,并讨论了焊接线能量在堆焊层金属显微组织的形成中起的作用以及对堆焊金属硬度的影响。
3.
The analyses on microstructure and hardness of deposited metals were made,and the effect of the welding heat input on the microstructure and micro-hardness of deposited metal was discussed.
采用光学显微镜观察分析了堆焊金属显微组织,利用硬度测试仪测试了堆焊金属的硬度,讨论了焊接线能量对堆焊层金属显微组织的形成、硬度的影响。
2) welding line energy
焊接线能量
1.
The effect of welding line energy on microstructure and low temperature toughness of heat-affected zone(HAZ) of X70 pipeline steel was studied by welding thermal simulation method.
通过焊接热模拟的方法,研究了焊接线能量对X70管线钢焊接热影响区组织和低温韧性的影响。
2.
The effect of welding line energy on microstructure and low temperature toughness of heat-affected zone of X70 pipeline steel was studied by means of thermal simulation,microstructure analysing and impact tests.
采用焊接热模拟技术、显微组织分析和冲击试验的方法,研究了焊接线能量对X70管线钢焊接热影响区组织和低温韧性的影响规律。
3.
The experimental results show that the dilution rate of cladding layer increases with the increase of welding line energy,materials significantly reduce the dilution effect after surfacing welding of two layers.
结果表明,随着焊接线能量增加,堆焊层的稀释率加大,堆焊两层后母材的稀释作用明显降低;堆焊后去应力退火处理不会改变堆焊层组织和性能,而完全退火处理后堆焊层组织为铁素体和珠光体,堆焊层硬度显著降低。
3) 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
4) 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。
5) 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
6) Welding linear power input
焊接比线能量
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