q345

Aim at Q345 steel welding function proceed chemistry analysis , weld experiment , the mechanics function examine to analyze the etc.

针对Q345钢板的焊接性能进行化学分析、焊接试验、力学性能检测和金相分析的等一系列的试验及研究。

Remedy and analysis of welding crack for cone-shaped variant section of thick wall pressure vessel on Q345 · C

Q345·C厚壁压力容器锥体变径段焊接裂纹分析及返修

The conventional production process for Q345 grade steel is the use of V-microalloy treatment to enhance strength and meet the required properties .

Q345级钢的传统生产工艺是采用钒微合金处理，提高强度，达到所需性能。

There are inclusions existing within nm in the experimental Q345 steel , the reduce in sulfur content is better for strengthening of the steel .

实验观察，在低硫含量的Q345实验钢中有纳米硫化物夹杂析出，降低硫含量对钢的强化具有有益作用。

The effects of ultrasonic impact treatment ( UIT ) on the residual stresses of welded rectangular steel ( Q345 ) pillar were investigated .

以Q345钢结构箱型柱为对象，研究了超声冲击工艺对焊接残余应力的影响。

With experiment datas of interface bond intensity of two different tensile form specimens , the local approach was used to analyze interface fracture behavior of TBCs / Q345 system .

利用两种拉伸试样的界面结合强度的实验数据，用局部法分析TBCs/Q345系统的界面断裂行为。

With electron microscope the fracture surface and metallographic structure analysis is done for typical sample of Q235 , Q345 plate of low elongation , its reason found out , some suggestions proposed .

用电镜对邯钢Q235，Q345中板伸长率低的典型试样进行了断口、金相组织分析，找出了试样断后伸长率低的原因，提出了相应的改进建议。

Roof purline is adopted with cold-bending and thin-wall steel ( Q345 ), knee bracing , roof horizontal bracing and purline drawn rod Q235 .

本工程屋面檩条采用高冷弯薄壁型钢材质Q345，隅撑，屋面水平支撑，檩条拉条材质均为Q235。

The cold-bended crack in the hot rolled plate Q345 can be eliminated by adoption of heating-cold bending process as well as improvement of the cleanliness of the steel .

采用加热-冷弯工艺和提高钢纯洁度可避免Q345热轧钢板冷弯裂纹的产生。