Cracks occurred in the main weld joining the web and upper wing panel of an overhead crane girder of I-section, some of which have expanded to the structure material and even led to girder fracture.
桥式起重机采用工字形截面作为主梁，使用多年后该结构形式的主梁上翼缘板和腹板连接的主焊缝及母材多处产生裂纹，甚至发生主梁断裂事故。
The edge condition of strip steel is the main factors affect pipe forming and weld quality.
钢带的边缘状况是影响焊管成型和焊接质量的主要因素。
The main region of invalidation of the weld joint between different steels is commonly in fusion zone during welding or serving.
异种钢焊接接头在焊接时或使用期间，发生失效的主要区域通常在熔合区。
This text was main elucidation to weld ten word pillars of general creation process with process a method.
本文主要说明了焊接十字柱的一般制作流程和加工方法。
The main purpose of studying welding technology AC pulsed MIG is used to weld splint.
研究交流脉冲MIG焊接工艺的主要目的是为了焊接薄板。
Abrasion and corrosion of heating surface, superheater tube cracking and weld leakage are the main cause of waste heat boiler breakdown in sulphuric acid plant.
硫酸废热锅炉故障主要是由受热面管子的磨损、受热面的腐蚀、过热器爆管及焊缝漏水等引起的。
During the Spiral welded pipe production, the main reasons of manual bend caused in strip steel are unusual aline of strip steel in strip steel connection weld process.
在螺旋焊管生产过程中，钢带产生人为硬弯的主要原因是对头焊工序中钢带不能对齐所致。
The pin shape is the main factor of affecting the flow pattern of the plasticized metal in the weld.
搅拌头形状是影响焊缝塑化金属流动形态的主要因素。
Through analysis of structure of the socket weld connection pieces, determined the layout project, designed a progressive die. Introduced the design points of main parts and die structure.
通过对插座连接焊片结构特点的分析，确定该冲压件的排样方案，设计了一副级进模。介绍了主要工作零件及模具总装结构设计。
Weld the main gusset as shown in the drawing above.
焊接主要扣板如上所示在提请大会。
The X grace steel sheet is used as main material for SAW straight weld pipes for pipe line purpose.
X级管线钢板材是生产直缝埋弧焊管的主要原材料。
The temperature field of welding workpiece determines the stress field and strain field, and it is also the main factor affecting the weld quality and production rate.
焊接工件的温度场决定了焊接应力场和应变场，是影响焊接质量和生产率的主要因素。
And the hardness of the weld account for 70 percent of the main body material.
同时发现焊接区的硬度约为母材硬度的70%。
The results indicate that the brittle intermetallic compound in weld is the main reason why the weldability of the plate is bad, which leads to cracks under the effect of welding stress.
通过分析TA2和Q 235b的焊接性，论述了钛与钢熔焊焊缝脆裂的机理，指出钛钢复合板焊接性能差的主要原因在于焊缝中产生了脆性的金属间化合物，从而导致焊缝在焊接应力的作用下发生开裂。
The main influencing factors of the microstructure in weld metal are composition and cooling rate of the weld metal.
研究了焊缝金属相对宽度和焊缝金属强度对接头性能的影响。
By analyzing the relation of microstructure, weld zone quality and tensile property, it is concluded that the welding technological parameter of L245 steel is the main factor of the welding crack.
通过分析l 245钢埋弧焊焊缝区质量、微观组织和拉伸性能关系表明，焊接工艺参数的合理制定是低合金钢l 245焊管产生裂纹等缺陷的关键因素。
All the main piece such as standard knot, tie, up and down turntable adopt CO2 gas coverage weld whose depth is big and the deformation is small. The assembling of standard knot can interchange.
标准节、拉杆、上下转台等主要部件(位)全部采用CO2气体保护焊，熔深大，变形小标准节可互换组合。
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。
The main feature of the device is able to observe arc and molten pool directly in coaxial direction so that the welding process is easily controlled and alignment of weld can be warranted.
其装置特点是能够轴向直接观察电弧和熔池状态，从而便于控制焊接过程，保证焊缝的对中性。
The main feature of the device is able to observe arc and molten pool directly in coaxial direction so that the welding process is easily controlled and alignment of weld can be warranted.
其装置特点是能够轴向直接观察电弧和熔池状态，从而便于控制焊接过程，保证焊缝的对中性。
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