The necessarily of post-weld heat treatment of spherical tanks was emphasized.
强调了焊接球罐焊后热处理的必要性。
With a stable and durable way to fusion weld heat sealed together to make sealing more encryption.
采用了稳定耐用的热熔接方式来熔合封口，使封口更加密合。
When post weld heat treatment is required, the PWHT may be performed by using an approved subcontractor.
如果需要进行后焊热处理，则应由经核准的分包商实施。
The fabricated vessel shall be post-weld heat treated as a whole in an enclosed furnace whenever possible.
只要有可能，制造的容器应在一个封闭炉中进行整体焊后热处理。
The creep-fatigue properties of 308L ste el weld after post-weld heat treatments (PWHT) were investigated.
研究308L焊缝经过焊后热处理其蠕变-疲劳的性质。
The experiment results show that the welding defects can be decreased by using preheat and post-weld heat treatment.
试验表明，采取焊前预热，焊后热处理的TIG焊工艺进行焊接可以减少焊接缺陷的产生。
Experiment results of welding residual stress and the stress after local post weld heat treatment are compared with numerical simulation.
给出了焊接残余应力与局部焊后热处理应力的试验结果与模拟结果的对比。
This procedure covers the method for casting material's heat treatment, and Post weld heat treatment (PWHT) to weld repair area of castings.
本程序包括铸件材料的热处理方法，铸件焊补区域的焊后热处理方法。
This method provided an available way for the post-weld heat treatment of T91 steel, and it was great important to facility rebuild, field...
这为寻求简化t 91钢焊后热处理提供了新的有效途径和可能性，对设备改造、现场安装及检修等具有重要意义。
The fatigue crack growth (FCG) behavior of the weld heat-affected zone of 14MnNbq bridge steel was systematically investigated in this paper.
从最弱链模型的物理本质出发，探讨了影响焊接热影响区脆性断裂的主要因素。
The method of internal combustion with high speed jet nozzle used in the local whole post weld heat treatment of spherical tanks was reviewed.
对球形储罐焊后整体热处理常用的燃油高速喷嘴内燃法进行回顾，并就开始研制的微机自动控制系统做了简介。
The design of the supplying wind system is fully significant. In the automatic control system of whole post-weld heat treatment of spherical tanks.
球罐焊后整体热处理自动控制系统中风路系统的设计十分重要。
The fracture rod has cracks in the microstructure of weld zone, intergranular cracks exists in the coarse grain zone of the weld heat affected zone.
进一步比较了断裂拉杆和已经产生裂纹的拉杆焊缝区的显微组织，发现在焊缝的热影响区粗晶区存在沿晶裂纹。
The results show that after post-weld heat treatment(PWHT), the welds of X80 steel seriously embrittle, and the fracture morphology of impact specimens is cleavage.
结果表明，经过焊后热处理后焊缝出现严重的低温脆化，其冲击试样的断口为解理状形貌；
The diffusion zone width of main alloying elements increases and hardness of the friction weld zone near TC4 titanium alloy side improves after post-weld heat treatment.
经焊后回火热处理后，主要合金元素沿焊合区的扩散区宽度增大；焊合区钛合金侧硬度值显著提高。
ANAND viscoplastic constitutive equation was introduced into the FE model for calculation of the reduction of welding residual stresses during the post weld heat treatment.
将ANAND粘塑性本构关系引入到焊后热处理消除残余应力的有限元计算中。
Cracking resistance of ultra-low cabon Cu-bearing age-hardening steels was studied in this paper by computing, maximum hardness in weld heat-affected zone test and Y-groove cracking test.
采用理论计算、热影响区最高硬度试验和小铁研试验方法研究了超低碳含铜时效钢的抗裂性。
By increasing the weld heat input, the distribution of martensite becomes more dispersive and glomerate due to the molten pool stiring, the welding stress and the burning loss of alloy elements.
随着焊接热输入量的增加，由于熔池搅拌、焊接应力、合金元素烧损等原因，马氏体的分布更加散乱和密集；
By use of the method of welding thermal simulation, the morphology in HAZ was simulated and the post-weld heat treatment under different tempering parameter to the test specimen was carried out.
采用焊接热模拟的方法，模拟HAZ粗晶区组织，并在不同回火参数下对试样进行焊后热处理。
This paper analyzed the welding capability of the new type heat resistant steel and discussed its welding technology, measures of argon filling and the control points of post weld heat treatment.
分析了新型耐热钢（T／P92）焊接性能，并对其焊接工艺、充氩措施及焊后热处理控制要点进行论述。
The effective method to improve the impact ductility of this zone is to change the welding process and conduct post-weld heat treatment, which is help to divide M-A component into ferrite and carbide.
改善焊接工艺或进行焊后热处理，使M - A组元分解成铁素体和碳化物是提高其韧性的有效方法。
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。
Fit and weld metal parts or sections together to fabricate boilers, vessels, tanks, heat exchangers, piping and other heavy-metal products.
安装和焊接金属部件或部分在一起，用于制造锅炉，容器，储罐，热交换器，管道和其他重金属产品。
Contact failure can occur when excessive heat or a high current or voltage pulse causes the contacts to weld together, resulting in short circuits.
当过热或者高电流或电压脉冲导致触点焊接在一起时，就会发生接触故障，形成短路。
A mathematical model has been established for fluid flow and heat transfer in weld pool with a deformed surface.
建立了熔池表面存在变形的流场与热场的数学模型。
The Charpy impact test of base metal, weld and heat affected zone of X80 grade pipeline steel of certain factory was conducted, and its effective grain was researched.
对某厂x 80高钢级管线钢母材、焊缝、热影响区进行了夏比冲击韧性试验，对其有效晶粒进行了研究。
An arc is stuck between the two, and the heat which is generated melts the metal at the weld.
电弧在此两者之间产生，产生的热量会使金属在接焊处熔化。
A three-dimensional numerical analysis model of fluid flow and heat transfer in pulsed current TIG weld pool is developed.
对运动电弧作用下脉冲tIG焊接熔池流场与热场动态变化过程建立了三维数学模型。
A three-dimensional numerical analysis model of fluid flow and heat transfer in pulsed current TIG weld pool is developed.
对运动电弧作用下脉冲tIG焊接熔池流场与热场动态变化过程建立了三维数学模型。
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