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- Frequency ERW pipe weld heat treatment to achieve the basic performance level of the base metal, and some even beyond. ERW焊管焊缝中频热处理后各项性能也基本达到了母材的水平,部分甚至超越。
- Distributions of residual welding stress and effect of post weld heat treatment (PWHT) on residual welding stress relaxation in Lehigh weld specimens was studied by Mathar Soete drilling. 通过钻盲孔法研究了里海型焊接试板焊接残余应力的分布和焊后热处理对焊接残余应力松弛的影响 ,讨论了适合生产实际的焊后热处理条件。
- However, there are a misunderstanding that has been heat-treated steel pipe ERW are quality assured, in fact, before the pipe weld heat treatment quality is very important. 但国内存在这样一个误区,认为经过了热处理的ERW钢管都是质量有保证的,其实热处理前的钢管焊缝质量是相当重要的。
- 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。
- A STUDY ON CANCELLING OFF POST WELD HEAT TREATMENT(PWHT) OF 10CrMo910 STEEL THICK WALL PIPE JOINT 取消10CrMo910钢厚壁管接头焊后热处理的研究
- Keywords heat affected zone(HAZ);temper embrittlement;thermal simulated;post weld heat treatment; 焊接热影响区;回火脆化;热模拟;焊后热处理;
- 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。
- 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。
- The exploration of the best control algprithm for the microcomputer automatic control system's whole post weld heat treatment of spherical tanks 球罐焊后整体热处理微机自动控制系统最佳控制算法的探索
- About heat treatment condition: A--As welded P--Post weld heat treated A焊态P热处理状态
- 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。
- 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。
- At welding heat, the flux metals, and oxide particles are dissolved in it together with any other imputities, and the flux is squeezed out from the center of the weld. 在焊接温度,助熔剂熔化了,氧化物颗粒以及其它可能出现的杂质都会熔化于助熔剂。
- I am afraid the last post has been dispatched. 恐怕末班邮件已经发出了。
- All bookings must be made by post. 所有预约都必须用信函形式。
- 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。
- By parcel post our samples were sent. 我们的样品是通过邮包寄送的。
- No one can alter the fact, ex post facto. 没有人能在事后改变事实本身。
- How long is the post tenable for? 这个职位任期多长?
- It takes speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。