亚洲综合在线播放_久久视频免费在线_久久久黄色av_亚洲免费视频一区

        The silver-base filler metals are a kind of brazing filler metals of silver-base solid solution,with excellent usability,low melting point,good wettability,great strength,good plasticity,contact and corrosion-resisting.They can be used to brazed all ferrous and nonferrous metals ,such as stainless steel,hard alloy etc.At present,they are applied on the fields such as refrigerator,air conditioner,lamps and lantems,instruments and meters,electrical equipments chemical industry and aerospace industry etc.

        In order to decrease melting point and the content of silver,adding copper,zinc,admium,tin,nickel etc elements to them consists of three elements or many elements alloy filler metals.These products can adopt all kinds of brazing methods.Generally speaking,you should make up the brazing flux in order to get good braze but for the vacuum state operation and the shield gas state operation.

      The silver base filler metals include“withcadmium”and“without cadmium”.The silver base filler metals with cadmium have a little toxicity.These products can`t be applied on the brazed joints which are directly connected with food,drinding water.The working place must wind.

       Before brazing,you must clear away all dirt on the brazing place and on the surface of object to be brazed such as greasy dirt.oxide,and so on,the best brazed joints space are between 0.03mm to 0.075mm.

1、 The brazing wires series:The plate-shaped brazing wires whose diameters are between 0.5mm to 3.0mm.

2、 The brazing rods series:The welding rods whose diameters are between 0.7mm to 3.0mm and the flat welding whose specification is 1.0×3.15mm.

3、 The belt brazing metal series:The bele metals and the flat metals whose thickness is between 0.1mm to 0.25mm,the minute belt metals whose thickness is between 0.1mm to 0.3mm.

4、 Thebrazing rings series:Various specifications brazing rings whose diameters are between 0.8mm to 2.5mm and whose internal diameters are more than 3.5mm.