焊的

In this paper, vacuum furnace brazing was carried out by using Ni Cr alloys as braze filler metals.

本文在真空炉中用钎焊的方法，用Ni Cr合金钎料，适当控制钎焊温度、保温时间和冷却速度，实现了金刚石与钢基体的高强度连接。

A method for brazing carbon/carborundum with niobium or niobium alloy relates to a method for brazing carbon/ carborundum with niobium or niobium alloy.

碳/碳化硅与铌或铌合金用复合粉末钎焊的方法，它涉及碳/碳化硅与铌或铌合金的钎焊方法。

The following failure in the maintenance, we must first rule out the USB interface board PCB damage and虚焊, and USB extension cable under normal circumstances, and then determine maintenance.

以下故障在维修时，首先要排除USB接口损坏及PCB板虚焊、及USB延长线正常的情况下，再维修判断。

A detection method for welding lines based on K-L algorithm is discussed. Infrared light source is applied to get high quality images of welding lines through CCD. Image template libraries for unwelded and welded lines are constructed and the welding line image is processed by K-L algorithm to match with the template libraries to judge if the welding line has been welded. The experiment shows that above method is effective with high precision and speed and it can be applied on real-time detection of welding lines.

提出计算机对所得图像进行滤波和图像分割，讨论了K-L算法的原理及其在红外焊缝图像检测中的应用；以红外光源照射焊缝，通过CCD摄取焊缝的图像，建立已焊和未焊的图像模板库，采用K-L算法对焊缝图像进行处理，并与模板库进行比较，得出焊缝是否焊接的结论；试验结果表明，该方法检测精度高，检测速度快，可以实时运用于对手工电弧焊的焊缝质量检测中。

Regarding to submerged arc weld multi-pass weld track and height of weld gun,two-dimension track system is designed.

针对埋弧焊多道焊的焊缝跟踪以及焊枪高度跟踪问题，设计了一种二维跟踪系统。

The etched section also reveals that multiple weld passes were made over the top of the original submerged arc weld pass.

从酸蚀断面还可以看出：在原自动埋弧焊的上面覆盖有多层焊道。

I concluded early in the company's products steel products joint electricity pressure welding slag, flash butt welding at the same time, developed a cone thread, cold extrusion reinforced mechanical joints.

我公司产品在总结早期产品钢筋接头用电渣压力焊、闪光对焊的同时，又开发研制了锥螺纹、冷挤压钢筋机械连接接头。

Now, the technology of flash welding has been applying in the engineering of rail welding progressively. The temperature field of flash welding plays a crucial role in the quality of welding joint, so the study of welding temperature field is significant to ensure the traffic safety and quality of welding and reduce the cost of welding.

目前，闪光焊技术在我国钢轨现场焊接工程中的应用正日益增多，由于钢轨闪光焊的焊接温度场对接头质量起着决定性的作用，因而开展钢轨闪光焊温度场的研究，对于控制焊接质量，降低焊接成本，提高列车运行安全具有十分重要的意义。

Using high frequency induction brazing and TiZrNiCu filler metal, the shear strengths of the joints were low. The maximum shear strengh was only 102.1MPa, which was lower than the maximum strength of vacuum brazing. The reasons may be that excessive intermetallics, holes and oxidation existed in the joint. So TiZrNiCu filler metal isn't fit for non-vacuum brazing.The stress variation, stress distribution and crack-sensitive regions during the cooling process of brazing have been studied by Marc non-linear software.

采用气体保护高频感应加热、TiZrNiCu钎料钎焊时，接头的强度普遍偏低，最高的剪切强度只有102.1MPa，远远低于辐射加热真空钎焊的强度，其原因是接头中局部生成了过量的金属间化合物，且产生氧化，接头中含有较多的气孔等影响了接头强度，因此可以认为TiZrNiCu钎料不适合在非真空条件下的钎焊。

Of a dish and a dish use the work word steel the welding pays to accept, a dish inner part adoption the Cape iron and the slot steel welding become whole framework, because of conveyance space limit, each dish is divided into two part, combination hour in the interval adoption M18 fix the stud bolt connects with each other to counteract the electric welding 焊 dead, the shape bottom use 8100 mms work word steel welding be used as to pay to accept, and with before install work well of the cement pillar foundation sprinkle to cast into the integral whole.

圆盘与圆盘之间用工字钢焊接支承，圆盘内部采用角铁与槽钢焊接成整体骨架，由于运输空间限制，每一圆盘分为两部分，组合时其间采用M18固定螺栓相连并用电焊焊死，造型底部用8根100mm工字钢焊接做为支承，并与安装前做好的水泥柱基础浇铸成一体。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐