焊的

LTHJ-SUPER-A1 Gantry welding automatic recovery machine This system is set for one body super new portal welder, special cylindrical welding tools or difficult welding. It adds super negative pressure wind pump on inner side of flux cylinder, so that in the welding process it can absorb unlyzed flux directly into cylinder and place into a small hopper. Open the valve of small hopper and put flux onto work piece, then you can put it into repeated usage.

LTHJ-SUPER-A1型龙门焊自动回收系统本系统是一体超强新型的门式焊机或外圆焊接特制工具、高难度的焊接而设置的，它就是一个焊剂筒内加上超强负压风泵，使在焊接过程中尚未溶化的焊剂直接吸收到筒内，放置到小料斗中，打开小料斗阀门把焊剂放到工件上，进行往复使用。

As the brittleness of low-k material,the traditional wire bonding parameter often lead to die pad crack or Au-AL matter bad;after used low-k material,die size,die pad opening and die pad pitch change to more little,wire change to lengther and density change to more higher,it\' s new challenge for molding and wire bonding;at the same time, low-k material also require to control the thermal stress in package.

由于低介电常数材料的脆性，传统的引线压焊参数设置将会导致焊盘碎裂以及金铝化合物不良；由于使用低介电常数材料后，芯片尺寸、压焊区域和压焊间距进一步减小，金线压焊长度和密度大大增加，这就为压焊和模塑提出了新的要求；同样由于低介电常数材料的应用，对封装体内部的热应力的控制也提出了更高的要求。

This paper summarizes the variety and output of submerged arc welding fluxes , and its application status quo to many fields in china is analyzed.

概述了我国埋弧焊焊剂的品种、产量发展及在国内各行业应用的情况，介绍了国外埋弧焊焊剂的生产应用情况，并对我国焊剂的发展提出了一些建议。

I plant the production of welding equipment and cutting equipment SCR rectifier arc welder, SCR DC argon arc welding machine, AC arc welder, air plasma cutting machine and carbon dioxide gas shielded welder six series, more than 20 varieties.

我厂生产的焊接设备和切割设备可控硅整流弧焊机、可控硅直流氩弧焊机、交流弧焊机、空气等离子切割机和二氧化碳气体保护焊机等六大系列，二十多个品种。

Shanghai Peoples Welding Machine Manufactory is a professional state owned manufactory which produces welding equipment, whose products mainly include five large categories:DC arc welder, argon arc welder, air plasma cutter, resistance welder etc.

上海人民电焊机厂是一个专业生产焊接设备的国营企业。主要产品有交、直流弧焊机、氩弧焊机、空气等离子切割机，电阻焊机等五大类常用焊机。

The weldability, deposited metals mechanical properties and purity of the new developed shell butt welding SAW material as the same level compared with Kobe Steel US-521HD/PF-500D.

研制的容器主焊缝埋弧焊材与国外典型的埋弧焊焊材在焊接工艺性能和熔敷金属力学性能及纯净度方面对比，结果表明研制焊材与日本神户制钢所的US-521HD／PF-500D焊材相当。

Including the arc welding, the resistance welding, the high energy welded, the rock drill welds four big kind of weldings methods and other eight special weldings method has carried on the detailed analysis.

包括电弧焊、电阻焊、高能焊、钎焊四大类焊接方法及其他八种特种焊接方法进行了详细的分析。

Including the arc welding, theresistance welding, the high energy welded, the rock drill weldsfour big kind of weldings methods and other eight special weldingsmethod has carried on the detailed analysis.

包括电弧焊、电阻焊、高能焊、钎焊四大类焊接方法及其他八种特种焊接方法进行了详细的分析。

The making technics of brazed monolayer tool is system studied in the paper. The applied brazed monolayer grindingplate is empoldered and brazed monolayer diamond wheel is also pilot studied, moreover grit-brazing mechanism is analyzed. These will make good experiment base in applying brazed monolayer diamond wheel in the future.

本文系统地研究了单层钎焊磨具的制造工艺，开发出能实际使用的单层钎焊砂盘，对钎焊金刚石砂轮也作出了初步研究，并分析磨粒钎焊机理，为今后国内开发钎焊金刚石砂轮打下良好的实验基础。

Hing Fat welding equipment has carbon dioxide, argon welding, impact welding, butt welding such as welding technology, and computer numerical control lathes, punch and precision processing.

兴发的设备有二氧化碳焊、氩焊、碰焊、对焊等焊接工艺，另有电脑数控车床，冲床及精密件加工。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。