The flame normalizing treatments were put forward on steel rail with flash welding, gas pressure welding and aluminium heat welding.
对钢轨闪光焊、气压焊和铝热焊进行火焰正火处理，并进行正火、未正火接头和钢轨母材的金相组织以及力学性能的对比。
The utility model has the advantages of increasing the thickness of the heat welding parts, enhancing the tensile strength of the heat welding parts and reducing the welding skill requirements.
本实用新型的优点是：增加熔接部位的厚度，增强熔接部位的抗拉强度且降低对焊接技能的 要求。
Other uses for this high power diode laser bar are as a direct source for various materials processing applications including cladding, welding, heat treating and brazing.
该高能半导体激光器的其他用途包括，用作各种材料处理应用的激光光源，这些处理应用包括覆层、焊接、热处理和铜焊接。
According to the requirement of the construction drawings and related technical specifications, responsible for heat treatment and welding document writing of the products and PQR.
根据设计图纸及相关技术标准要求，负责产品热处理和焊接工艺文件的撰写。
If welding procedure tests have been performed at both a high and a low heat input level, then all intermediate heat inputs are also qualified.
如果焊接工艺试验在高热输入值和低热输入值下进行，那么，中间的热输入也应合格。
Crack in neck of hollow shaft is a very serious malfunction, main cause of the crack include: foundry defect, centralized stress, quality problems of welding and heat treatment.
中空轴轴颈裂纹是水泥磨的严重故障。中空轴轴颈裂纹产生的原因主要有：铸造缺陷，应力集中，焊接和热处理质量问题等。
This paper introduces the rehabilitation procedure of PE lined pipeline and stresses on quality control requirement of PE pipe heat melting welding.
文章介绍了内衬PE管修复技术的施工程序，强调了PE管道热熔焊接质量控制要求。
Welding is a complicated process in which arc physics, heat transfer, metallurgy and mechanics are involved.
焊接是一个涉及电弧物理、传热、冶金和力学的复杂过程。
This welding process joints work pieces by melting the electrode and the base metal with the heat from the electric arc between the electrode and the work piece.
它是一种利用焊条与工件之间电弧产生的热量熔化焊条和母材而将被焊工件连接起来的焊接方法。
Welding CCT diagrams of steels are the basic to select welding material, determine the optimum welding technology, relieve welding cracks and lay down standard of past heat treatment.
钢的焊接CCT图，是正确选择焊接材料、确定最佳焊接工艺、消除焊接裂纹、制订焊后热处理规范的重要依据。
Our company has lots of advance production lines including pressing, forging, heat treatment, welding, machining, assembly and painting etc. The production output reaches to 900 sets per shift.
公司现有冲压、锻造、热处理、焊接、机加工、装配、油漆等多条先进的生产线，单班生产能力达到900台套。
During this month, I learned lathe work, miller operating, benchwork, digital control processing, sand mold casting, heat treatment, and welding.
在一个月中，我们学习了车工，铣工，钳工，数控加工，沙型铸造、热处理、焊接等等。
The heat of fusion welding is generated in several ways, depending on the sort of metal which is being welded and on its shape.
熔焊的热度有几种来源，取决于被焊金属的种类及其形状。（注重的是翻译出语言的简练）
Temperature field distribution of weldment, which reflects complex welding heat process, is a basic on studying welding deformation, residual stress and so on.
焊件中的温度场分布反映了复杂的焊接热过程，是研究焊接变形、焊后残余应力等状况的基础。
Strength and bending resistance test, welding heat test and highly accelerated life test (HALT) were retested up to grade.
经瓷体强度实验、抗弯曲实验、耐焊接热实验、加速寿命实验，其各项指标均合格。
Please give the standards of the preheat before welding and those of the heat-treatment after welding.
请您提供焊前预热和焊后预热处理的规范。
Using the heat of welding to vapour water, cooling rates are lowered on the weld bead and heat -affected zone.
利用焊接时的加热使水汽化，不仅使焊道而且使热影响区的冷却速度减慢。
In frequent bending stress condition, fatigue cracking occurred due to the cracking source had been initiated in welding heat affected zone.
在承受频繁的弯曲应力作用后，在其焊接热影响区萌生了裂纹源进而发生疲劳开裂。
Compounding arc heat source to laser heat source can reduce welding co st and improve welding efficiency.
在激光热源的基础上复合电弧进行焊接，可以降低焊接成本，提高焊接效率。
The joint which is connected by welding method is called the welding joint, which is composed of welding seam, fusion zone, heat affected zone and its adjacent base metal.
用焊接方法连接的接头称为焊接接头，它由焊缝、熔合区、热影响区及其邻近的母材组成。
A numerical method is presented for the two dimensional quasi steady state heat transfer on high power density laser welding processes according to the keyhole model.
对高能量密度激光匙孔焊接过程的二维准稳态传热进行了计算方法的研究。
Due to the large size of the deaerator water tank of a nuclear power station, in-situ welding is required for 2 ring butt welds, causing difficulties in welding and heat treatment.
某核电站除氧器水箱尺寸较大，其2条环焊缝需在现场拼焊，焊接和热处理难度很大。
Copper and copper alloys are one of the most widely used metals due to their excellent electric conductivity, heat conductivity, and welding ability.
铜和铜合金具有优良的导电性、导热性和可焊性，是目前应用最广的金属材料之一。
The microstructure of the deposited metal and the effect of the welding heat input on the formation of the deposited metal are studied.
分析了堆焊熔敷金属的显微组织，研究了焊接线能量对堆焊层金属显微组织形成的影响。
The microstructure of the deposited metal and the effect of the welding heat input on the formation of the deposited metal are studied.
分析了堆焊熔敷金属的显微组织，研究了焊接线能量对堆焊层金属显微组织形成的影响。
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