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Numerical computation of3 D welding temperature distribution was carried out by using element birth and death to simulate the forming of weld bead and welding heat input. 在用有限元进行焊接温度场的数值计算中,通过控制单元的生死,来模拟焊缝的形成和焊接热量的输入,计算结果与焊接温度测试结果很接近。
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。
The influence of technological parameter such as preheat temperature, heat treatment temperature, weld heat input and welding consumable on the weld of T91/P91 steel was synthetically analysed by means of SMAW during the course of welding process. 综合分析了手工电弧焊焊接过程中的预热温度、热处理温度、焊接线能量等主要工艺因素以及焊接材料对T91/P91钢焊缝性能的影响。
Keywords welding heat input;interpass temperature;impact value; 焊接线能量;层间温度;冲击韧性;
On reaching welding heat, the metal surfaces are pressed together. 当金属表面达到焊接热度时就会压在一起。
Keywords transformation column;preheat;welding heat input;interpass temperature control;postheat（remove argon）;symmetrical welding; 转换柱;预热;焊接热输入;层（道）间温度控制;后热（去氢）;对称施焊;
Keywords TCS stainless steel;gas metal arc welding;welding heat input;coarse grained region structure;heat-affected zone; TCS不锈钢;熔化极气体保护焊;焊接热输入;粗晶区组织;热影响区;
weld heat input 焊接线能量,焊接热输入
welding heat input 焊接输入热量
Abstract: The feature of new developed HSLA steels for large heat input welding with low susceptivity to weld cracking was presented. 摘要: 简要叙述了新研制的大线能量焊接低焊接裂纹敏感性调质高强度钢的特点。
So the heat input should be kept low to weld galvanization steel sheet.In this paper the MIG welding machine is adopted with special sold... 因此,焊接镀锌板一定要减少热输入量,采用特殊的钎焊材料和性能优良的MIG焊机进行焊接。
Weld whose heat resource is the laser, also owns the advantage such as low heat input and small heat deform. 以激光为热源的焊接同样也可以得到低热输入、变形量极少的效果。
On reaching welding heat,the metal surfaces are pressed together. 当金属表面达到焊接热度时就会压在一起。
Fig.6 The effect of heat input on the UTS of the TIG welded joints. 图6线能量与钨极氩弧焊焊接接头极限抗拉强度的关系。
The experiments show that laser welding with filler wire Alsi12 cna minimize hot crack due to the smallest amout of heat input into the ease material. 工艺实验表明 ,采用填充焊丝AlSi12激光焊接可有效抑制热裂纹的产生
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。
It is found that the height of dryout point decreases as heat input increases. 研究结果表明，理论模型的计算结果与实验结果比较吻合;
It is found, current channel resistance has greater effect on the penetration of A-TIG welding for aluminium alloys. Especially in A-TIG welding with DCSP, the change of heat input due to the change of current channel resistance is the main effect. 研究发现，导电通道电阻对铝合金A-TIG焊熔深有较大影响，尤其在直流正接A-TIG焊中，由于导电通道电阻变化而导致的热输入的变化成为影响熔深的重要因素。
Variations in the properties of the weld occurring at short regular intervals along the weld line due to repetitive variation in welding heat. 由于焊接热量周期变化，使得沿焊缝线每一固定的小间距焊缝的性能出现周期性变化。
The results show that welding heat efficiency obtained by two ways are almost the same, the welding heat effi... 研究结果表明,两种方法得到的焊接热效率值十分接近,因而为焊接热过程计算提供了一种新的确定焊接热效率的方法。