The electric spark build-up welding technology features less heat input and negligible residual stress etc., which is non - replaceable in the welding of special key components.
电火花堆焊工艺具有热输入量小、残余应力可忽略不计等显著特点,在特殊关键部件焊接中有不可替代性。
The average size of inclusions is increased with the increasing of heat input.
随着焊接热输入的增加,夹杂物平均尺寸增大。
The reliability of the heat input model in the simulation is also verified by the example.
算例验证了该热源模型在有限元计算中的可靠性。
It also should be pointed out that heat input increasing is favorable for the prevention of HIC.
另外需要指出的是提高线能量对氢致开裂的预防是有益的。
The results show welding heat input has a remarkable effect on the mechanical properties of the joint.
试验结果表明,焊接热量对接头的力学性能有着显著的影响。
Based on the verification of experiment, the effect of heat input on residual stress was investigated.
在试验验证的基础上,讨论线能量对残余应力的影响。
Additionally, because of the heat input from the vapour, the liquid on the tray boils, generating more vapour.
此外,由于获得来自蒸气的热量,塔板上的液体沸腾,生成更多蒸气。
The creep buckling of columns with geometrical imperfections subjected to short time heat input is studied in this paper.
本文分析了受短时热冲击压杆在非均匀温度场下的蠕变屈曲问题。
The hardness test show that the weld hardness with high welding heat input is higher than that with low welding heat input.
硬度测试结果表明,大线能量焊接热处理后焊接接头的硬度高于小线能量焊接的焊接接头硬度。
With large welding heat input, more upper Bainite and granular Bainite form, which is benefit to improve the property of HAZ.
采用大的线能量焊接,形成较多的上贝氏体和粒状贝氏体组织,对改善接头性能有利。
With increase of heat input and laser power density, the cross section of the weld transformed from nail shape to near X shape.
随焊接热输入和激光功率密度的增大,焊缝截面由钉形向近X形转变。
When impact requirements apply, the upper limit of heat input qualified is 25 % greater than that used in welding the test piece.
当采用冲击要求时,适合的热输入的上限比试件焊接时使用的热输入大25%。
When hardness requirements apply, the lower limit of heat input qualified is 25 % lower than that used in welding the test piece.
当采用硬度要求时,适合的热输入的下限比试件焊接时使用的热输入低25%。
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。
To study heat input of metal parts in deposition forming is favorable for forecasting and avoiding flow and collapse in deposition layers.
研究金属零件熔积成形中的热输入有利于预测和避免熔积层中出现流淌和坍塌现象。
With the increasing of heat input, the width of columnar crystal is increased, the dimension of acicular ferrite of weld metal is increased.
随着热输入增大,焊缝柱状晶宽度增大,焊缝中针状铁素体板条有粗化的趋势;
If welding procedure tests have been performed at both a high and a low heat input level, then all intermediate heat inputs are also qualified.
如果焊接工艺试验在高热输入值和低热输入值下进行,那么,中间的热输入也应合格。
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。
Heat efficiency during hydrate thermal recovery, i. e., hydrate decomposition heat to total heat input ratio, has also been analyzed based on the model.
在此基础上,分析了水合物热力开采过程中热量的有效利用率,即用于水合物分解的热量与输入的总热量的比值。
The complex inclusions in CGHAZ promote the acicular ferrite formation, which is associated with heat input and affects the mechanical properties of CGHAZ.
结果表明:CGHAZ中复合夹杂物可促进针状铁素体的形成,针状铁素体的数量与输入线能量有关并显著影响CGHAZ的力学性能。
Further, according to thermal cycle calculated by the finite element method, the thickness of reaction layer was predicted in the case of different heat input.
进一步,通过有限元数值模拟方法计算了界面不同位置的热循环曲线,进行了不同热输入条件下反应层厚度的预测。
The coarse primary ferrite appeared in weld metal, and coarse bainite appeared in heat-affected zone under larger heat input welding condition, which caused low...
在较大焊接热输入条件下焊接,焊缝金属产生粗大先共析铁素体、过热区产生粗大粒状贝氏体,焊接接头低温冲击韧性因此降低。
Applied GTAW and SMAW to weld Ammonia Saturator with emphasis on preweld treatment and controlling welding heat input, high welding quality and efficiency were reached.
在氨饱和器焊接中采用钨极氩弧焊与焊条电弧焊相结合的焊接方法,重视焊前清理和焊接线能量控制,既保证焊接质量又提高生产效率。
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。
With the heat input of laser welding increases, the hardness of HAZ decreases, but it is higher than that of the base metal, indicating no softened zone after laser welding.
焊接接头显微硬度随热输入的增大而减小,均高于母材,未出现明显的软化区。
In experiments, brazing parameters and laser incident Angle were changed during the process. The regularity of appearance of brazing seam in different heat input was obtained.
试验过程中,通过改变钎焊工艺参数及激光入射方式,研究了镀锌钢板激光填丝钎焊在不同热输入下的钎缝外观成形规律。
The studying results indicate that the magnitude and distribution of residual stress are related to the heat input created by welding process and to the cross section geometry.
分析结果表明,厚板焊接工形截面残余应力的大小及分布,除了与焊接输入热量有关外,尚与截面几何尺寸有关。
This paper expounds the direct embed construction of heat input pipe with big diameter, and its constructing method and quality control in the rebuilding of urban pipe network as well.
论述了大管径供热管道直埋施工,在城市管网改造中的施工方法和质量控制。
Achieve continuous balance between produced and consumed steam. This master pressure control approach controls total heat input into boilers, as well as total steam flow into each header.
实现产出和消耗蒸汽的连续平衡。主压力控制方法控制着输入锅炉的总热量以及流入每个锅炉联管箱的蒸汽量。
Achieve continuous balance between produced and consumed steam. This master pressure control approach controls total heat input into boilers, as well as total steam flow into each header.
实现产出和消耗蒸汽的连续平衡。主压力控制方法控制着输入锅炉的总热量以及流入每个锅炉联管箱的蒸汽量。
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