焊接的

The properties of the flash butt welding joint achieved the level of the foreign experiment results. It can meet the requests of the correlation technology condition.

高锰钢辙叉与钢轨闪光对焊接头的抗拉强度达钢轨母材的60%左右；冲击韧性值也在钢轨母材冲击值的60%以上，其接头力学性能接近或达到了国外加过渡层闪光对焊接头力学性能的水平。

The results show that : basic manufactured tank, welders were no longer needed in Tooling process, the cutting process is not strictly adhered to. Defects generated through the floor to form oil leakage is the main reason production base metal microstructure revealed the existence of a more serious segregation, makes steel welding performance is changing for the worse. Failure welding defects as easily lead to hidden dangers.

结果表明：油罐基本制造完成后，焊工在切除不再需要工装过程中，不严格遵守切割工艺，所产生的底板贯穿性缺陷是形成油罐泄漏的主要原因，金相显示制作母材中存在着较严重的偏析，使得钢材的焊接性能变得较差，容易引起焊接缺陷成为失效隐患。

Mechanical properties of the friction weld drill rod, which is guaranteed with the rational welding technology and the rational heat treatment technology, must meet the requirements of profession standards.

摩擦焊接钻杆要求其机械性能达到行业标准要求，钻杆焊后的机械性能是由合理的焊接工艺和正确的热处理工艺保证的。

A wire for submerged-arc welding against seawater corrosion is developed. The test results indicates that the joint welded with the wire matched with 350 type flux has a good combination of mechanical properties. The wire is suitable for ship hull steel welding.

研制了一种耐海水腐蚀的埋弧焊丝，该焊丝配用350焊剂进行施焊，焊接接头具有优良的综合力学性能，满足了船体钢的焊接要求，填补了该强度级别耐海水腐蚀船用焊丝的国内空白。

Mathematics model of hysteresis loops and calculation formula of hysteresis energy for Masing and non-Masing material were established.

本文针对我国广泛使用的16MnR压力容器用钢焊接接头，从焊接接头材质和力学不均匀性的实际出发，首次分别系统地对焊缝、热影响区和母材进行了低周疲劳实验研究，求得各分区的循环滞回环及其特征参数，建立了Masing材料和非Masing材料的滞回环数学模型和滞回能计算公式。

ABSTRACT Appling the numerical model and control theory to the state identification of carbon migration in dissimilar metal weldments , its law and quantitative calculation were researched. Based on analysising of metallurgical and dynamics properties of DMWs, the influences of welding procedure's factors on their high-temperature properties were studied in this dissertation. The following are the main contents.

本文将数值化建模和控制理论引入到异种钢焊接接头碳扩散迁移状态辨识，对碳的扩散迁移的规律及定量计算进行了研究，在对异种接头冶金性能和力学性能进行分析的基础上，对焊接工艺因素对接头性能的影响进行了研究，主要内容如下： 1。

This topic research initially summarized set of weldings crafts, including the preheating temperature determination, the low intensity match feasibility, the welding speed selection as well as the line energy indeed grades, these research techniques and the method may directly use in the production practice.

初步总结了一套焊接工艺，包括预热温度的确定、低强度匹配的可行性、焊接速度的选取以及线能量的确定等，这些研究方法与手段可以直接用于生产实践。

Regrinding of scratches Scratches, which are the reason for future cracks are eliminatedby local regrinding Welding of holes Small cracked areas with missing materialcan be repaired by welding using filler wire to close the hole.

磨的擦伤被抓伤的，这是因为未来出现裂纹，消除，由当地再磨焊接洞小破获地区失踪的材料，可以修复使用的焊接填丝封闭孔。

A series of spot welding technology and joint tensile-shear tests for uncoated low carbon, electroplated and two kinds of hot dipped zinc-coated steels were made to improve the quality of spot welding joint for zinc-coated steels. The test results were analyzed with computer regressive method. The effects of welding current or time on nugget diameter or joint tensile-shear strength and critical curves in splash generation for spot welding were obtained.

摘 要：为提高镀锌钢板点焊接头的质量，对普通冷轧钢板、电镀锌钢板和两种镀锌层厚度不同的热镀锌钢板进行了一组点焊工艺及接点强度试验，并对试验结果进行了计算机回归分析，分别得出了这几种材料在不同的焊接电流、焊接时间下的点焊熔核直径或接头拉剪强度变化曲线以及点焊飞溅临界曲线。

Relying on military defense technology company, has specialized electromagnetic shielding of electronic and machinery product design experts, advanced sheet metal, mold processing, and production of smart cards and laser processing equipment, to have access to professional certification of metal welding, integrated wiring, HVAC, Fire control, security, network installation commissioning of the scene of several engineers, to engage in independent high-performance computer room, welding and assembly-type electromagnetic shielding room, conference room confidentiality shield silencers, CA and Certification Center, MRI MRI room, ear-room, Brain EMG room, industrial design and construction of medical anechoic chamber.

公司依托国防军工技术、拥有专业的电磁屏蔽及机械电子产品设计专家，拥有先进的钣金、模具加工、智能卡生产及激光加工设备，有获得专业认证的金属焊接、综合布线、暖通空调、消防控制、安全防范、网络调试的现场安装工程师数名、能够独立从事高性能计算机机房、焊接及组装式电磁屏蔽室、屏蔽消音保密会议室、CA认证中心、MRI核磁共振室、耳音室、脑肌电室、工业医疗消声室设计施工。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。