• Influence of the relative width of weld metal and strength of weld metal wes researched.

    研究焊缝金属相对宽度焊缝金属强度接头性能影响

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  • Since there are weld defects in welds, using traditional strength theory based on no defect and no crack to design, crane's security in rating load can't be insured.

    由于焊缝部位存在焊接缺陷采用传统建立在构件缺陷、无裂纹基础强度理论进行设计计算时,往往不能确保起重机在额定载荷下使用安全性

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  • The formulae for calculating SIF and fatigue life of surface crack at weld toe of the high-strength steel under the combination stresses were given out.

    给出高强钢表面裂纹压弯组合应力应力强度因子及其疲劳寿命计算式。

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  • The formulae for calculating SIF and fatigue life of surface crack at weld toe of the high-strength steel under the combination stresses have been presented.

    给出高强钢表面裂纹压弯组合应力应力强度因子及其疲劳寿命计算式。

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  • This paper analyses the cause of strength descent of brazing weld, and proposes improving measures.

    本文分析钎焊焊缝强度下降原因提出改进措施。

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  • It's a new method to increase fatigue strength of welded joints and structure by peening toe of weld with ultrasonic peening equipment.

    使用超声波冲击提高焊接接头结构疲劳强度一种国际上刚刚出现的方法

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  • The microstructure and fine structure of weld fusion zone for high strength fine grain steel were studied.

    研究强度晶粒碳素钢焊接接头熔合附近显微组织精细结构

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  • Improvement of elongation of joint is related to weaker cool deformation degree of heat affect zone (HAZ) and uniformity of strength and stress level between weld and base metal.

    接头延伸改善影响变形程度减弱焊缝强度应力水平同母材趋于一致有很大关系

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  • The LB-52NS electrode is used in our country to weld both A131 and A537 offshore platform steel, so the strength matching of their welded joints is different.

    我国海洋平台A131A537均用LB-52NS焊条焊接因而这两种材料焊接接头强度匹配不同。

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  • The influences of strength matching on fillet weld were analyzed. The relationships among fillet weld size, thickness of base metal and matching coefficient of strength were established.

    分析强度匹配对角焊缝设计影响建立了焊缝焊脚尺寸板厚,强度匹配系数之间关系,讨论了强度匹配选择的依据

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  • Superhigh strength steel AF1410 is a type of new aviation steel, which is good for resisting stress corrosion and is not difficult to weld.

    AF 1410超高强度一种应力腐蚀焊接性能较好的新型航空材料。

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  • Its results show that with decreasing the relative width of under-matching weld metal, the tensile strength of welding joint increase.

    结果表明:随低强焊缝金属相对宽度变小接头抗拉强度增大

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  • The results show the weld has good properties in strength and toughness satisfying the welding demands of pipeline.

    研究结果表明焊缝具有优良韧性匹配,焊接接头强度冲击韧性均满足管线钢工程焊接技术条件。

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  • The hardness of weld region shows'less variation than base metal and the ultimate tensile strength of TMAZ is almost 20% improvement.

    焊缝区的硬度波动范围很小,强度增加20%。

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  • But the mechanical properties of weld joint have influence on selection of welding technology and welding material, and on strength calculation of construction.

    接头性能直接影响结构焊接工艺选择强度计算

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  • The strength mismatch of girth weld is a concerned problem of study and application of pipeline.

    环焊缝强度匹配天然气管道研究应用热点问题

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  • The effect of transformation temperature of weld metal on the residual stresses and the fatigue strength of welded joints is analyzed based on their test.

    通过焊缝金属相变温度残余应力测试以及焊接接头疲劳强度试验,分析了焊缝金属相变温度焊接残余应力和焊接接头疲劳强度影响规律。

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  • Moreover, the difference of J-integral values increases with the increasing of the load and strength mismatching difference and the path-enclosed length of interface between weld metal and base metal.

    载荷越大,焊缝强度差别越大;积分路径中包含焊缝与母材界面长度越大,J积分的越大

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  • The parameters that deeply effect on the bending strength were porosity, energy input and the overlapping of weld metal.

    明显地影响抗弯强度参数是气孔输入能量的大小焊接金属重叠性能。

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  • Compared with conventional structural steels used in Bridges, high performance steel (HPS) provides higher strength, improved weld ability, enhanced fracture toughness and weathering characteristics.

    传统桥梁相比高性能(HPS)在强度、可断裂韧性、延性和耐候性方面都有很大的改善

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  • The results show that beam offset can greatly affect the macro performance of Laser tailor-welded weld , then affect the cupping Test value and tensile strength unconspicuous.

    结果表明光束偏移量对激光焊缝宏观形貌有很大影响,而对焊缝杯突抗拉强度无明显影响。

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  • Flanging, smooth flow, the strength of the weld.

    外翻边,水流通畅强度大。

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  • The experimental results show that the fatigue life of steel welded joints can be improved by grinding the weld bead, especially for the higher strength steel.

    试验结果表明焊件疲劳寿命可以通过打磨焊缝得到改善尤其对于强度钢焊件。

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  • Campared with the original composition, the new composition system has more steady flowing, better article glossiness and flexibility, and higher fillet weld strength.

    在加工过程中配方比较,料稳定提高了制品的光泽度、柔韧性强度。

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  • And the welding connecting of them are advised to use slope butt weld that are fully welded, but when the double-sided fillet weld is used, they should be design on equal strength.

    节点中的焊接采用完全对接焊缝连接采用双面焊缝连接时,设计

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  • The strength of fillet welding joint is related not only to the fillet weld size, but also depends on the base metal strength matching.

    焊缝强度不仅尺寸有关取决于焊缝金属与母材强度的匹配

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  • Many aircraft and airspace parts are TIG welded because of the reliability, clearance, and strength of the weld.

    很多飞机航空部件都是用氩弧焊焊接因为可靠清洁强度高。

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  • The influence mechanism of the thickness of the nickel coating on the steel side on tension-shear strength of the weld was studied by means of tension-shear tests, SEM and EDS.

    借助拉试验SEMEDS,研究了搭接面低碳钢厚度接头拉剪强度影响机制

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  • The results of performance measurement test show that tensile-strength, contraction of cross sectional area, elongation percentage, dynamic ductility of the weld all exceed their base metal.

    后试件性能测试结果表明,焊接接头的拉伸强度、断面收缩率延伸率及冲击韧性均已超过母材。

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  • There is no need to weld the joint thoroughly for the cruciform joint. But if the dimension which is not welded is too large. that will make fatigue strength reduce.

    厚板焊接结构角焊缝,多数情况下必要完全焊透,但是如果透部分尺寸过大就会使焊接接头疲劳强度大幅度降低。

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