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- In the present work the diffusible hydrogen content in steel welds made with this process is determined. 分析了电弧区水蒸气分解及解离的热效应,利用数值方法计算出电弧非导电区的温度及氢分压分布;
- Perform wire surface quality and welding properties inspection, besides perform diffusible hydrogen test. 完成焊丝表面质量检验和焊接工艺性的检查，并做好扩散氢测试工作。
- Perform diffusible hydrogen test and report the results which doesn’t meet the prescribed requirement. 按规定的批号进行扩散氢测试，对不符合扩散氢含量要求的焊丝及时汇报。
- However, as the chemistry, diffusible hydrogen level of the weld metal, restraint or section thickness increases, the demand for preheat also increases. 然而，由于化学，扩散氢水平的焊缝，克制，或切片厚度的增加，需求的预热也随之增强。
- The results show that increarsing the content of divers fluorides,carbonate and rare earth oxide in flux core will make the content of diffusible hydrogen in weld reduce. 结果表明，适当提高药芯中多种氟化物、大理石及稀土氧化物含量，将有利于降低焊缝中扩散氢含量。
- It has low diffusible hydrogen and good low-temperature impact toughness, suitable for welding middle-carbon steel and pressure containers of low-temperature steel. 扩散氢含量低，低温冲击性能优异，适用于低温钢、中碳钢等压力容器的焊接。
- Keywords weld;mercury method;diffusible hydrogen; 焊缝;水银法;扩散氢;
- Keywords welding;microelements;diffusible hydrogen; 焊接;微量元素;扩散氢;
- The paper deals with the influence of deoxidize content in covering on gas hole of surface welding and discusses the relationship between the gas hole and diffusion hydrogen. 研究了药皮组成中脱氧剂含量对堆焊焊条气孔的影响原因;讨论了焊缝中扩散氢含量与气孔间的关系.;研究表明:在同样条件下;随着脱氧剂含量的增加;酸性焊条气孔敏感性增大;
- Methods for determination of diffusible hydrogen in deposited metal 熔敷金属中扩散氢测定方法
- Water contains hydrogen and oxygen. 水含有氢和氧。
- Experimental study of diffusible hydrogen in weld metal 焊缝金属中可扩散氢含量的试验研究
- Keywords Non preheating welding Weldability Diffusible hydrogen; 不预热焊接;焊接性;扩散氢;
- Keywords diffusible hydrogen;welding methods;electrode; 扩散氢;焊接方法;焊条;
- Keywords Electrode;Diffusible hydrogen;H D escape characteristic; 焊条;扩散氢;逸出特性;
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- Factors of Affecting Diffusible Hydrogen Content in Weld by Mercury Method 水银法测定焊缝扩散氢的影响因素
- The Determination of Diffusible Hydrogen Content in Weld by Mercury Method 水银法测定焊缝扩散氢含量
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- Keywords coating basicity;deposited metal;impact toughness;diffusible hydrogen; 药皮碱度;熔敷金属;冲击韧度;扩散氢;
