What is Silver Brazing? When to weld with silver electrode

Silver brazing is a brazing method in which the base metal or brazing metal to be joined is silver.

Brazing refers to the welding method in which the brazing metal below the melting point of the weldment and the weldment are heated to the melting temperature of the brazing material at the same time, and the liquid brazing material is used to fill the gap of the solid workpiece to make the metal connection.

During brazing, the oxide film and oil stain on the contact surface of the base metal should be removed first, so as to facilitate the capillary tube to play a role after the brazing metal is melted, and increase the wettability and capillary fluidity of the brazing metal. According to the different melting points of brazing metals, brazing is divided into hard brazing and soft brazing.

Depending on the base metal or brazing metal to be connected, it can be divided into aluminum brazing, stainless steel brazing, and titanium alloy.

Brazing, superalloys.

Brazing, ceramic brazing, composite brazing, as well as silver brazing, copper brazing, etc.

Silver brazing is the brazing process in which the material is made of silver solder.

Brazing technology is a method of using a material lower than the melting point of the base metal as the brazing metal, heating the weldment and the brazing metal to a temperature higher than the melting point of the brazing metal but lower than the melting temperature of the base metal (so that the base metal is still solid), using the wetting effect of the liquid brazing metal to fill the joint gap, and diffusing with the base metal to realize the connection of the welded workpiece.

Classification of brazing methods.

The quality of the brazing joint is related to the brazing method selected, the brazing material (flux, filler metal, etc.) and process parameters. According to different characteristics and standards, there are several ways to classify brazing methods.

According to the melting point of the brazing metal used, it can be divided into soft brazing and hard brazing, when the melting point of the brazing metal is lower than 450, it is called soldering, and when the source grip type is higher than 450, it is called hard brazing.

According to the brazing temperature, it can be divided into high-temperature brazing, medium-temperature brazing and low-temperature brazing, and the temperature division is relative to the melting point of the base metal. For example, for steel parts, the heating temperature higher than 800 is called high-temperature brazing, between 550 and 800 is called medium-temperature brazing, and the heating temperature is lower than 550 is called low-temperature brazing; But for aluminum alloys, the heating temperature above 450 is called high-temperature brazing, between 300 and 450 is called medium-temperature brazing, and the heating temperature below 300 is called low-temperature brazing.

According to the different types of heat sources and heating methods, it can be divided into flame brazing, furnace brazing, induction brazing, resistance brazing, dip brazing, fumed brazing, soldering iron brazing and ultrasonic brazing.

According to the way of removing the oxide film on the surface of the base metal, it can be divided into brazing agent brazing, flux-free brazing, self-brazing agent brazing, gas shielded brazing and vacuum brazing.

According to the characteristics of joint formation, it can be divided into capillary brazing and non-capillary brazing. The situation in which the liquid brazing metal is filled into the brazing seam by capillary action is called capillary brazing; Capillary action that does not play a major role in the formation of brazing joints is called non-capillary brazing. Contact reaction brazing and diffusion brazing are the most typical non-capillary brazing processes.

According to the different base metals or brazing metals to be connected, it can be divided into aluminum brazing, stainless steel brazing, titanium alloy brazing, high-temperature alloy brazing, ceramic brazing, composite brazing, as well as silver brazing, copper hail brazing, etc.

Brazing refers to the welding method in which the brazing metal below the melting point of the weldment and the weldment are heated to the melting temperature of the brazing metal at the same time, and then the liquid brazing metal is used to fill the gap of the solid workpiece to make the metal connection. And according to the different melting points of brazing metal, brazing is divided into hard brazing and soft brazing.

Silver electrode is a kind of silver or silver-based solid deep body electrode, silver electrode has good fluidity, excellent process performance, low melting point, good wettability and the ability to fill the gap, and high strength, good plasticity, excellent conductivity and corrosion resistance.

It can be used to braze all ferrous and non-ferrous metals except aluminum, magnesium and other low melting point metals, and the product is widely used in refrigeration, lighting, hardware and electrical appliances, instrumentation, chemical industry, aerospace and other industrial manufacturing fields.

Summary. Hello, air conditioning pipe welding, (hand decoration, frame, contact welding, etc.) with silver electrode.

When to weld with silver electrode

Hello, air conditioning pipe welding, (hand decoration, frame, contact welding, etc.) with silver electrode.

Hello, silver welding rod is a commonly used silver brazing metal, with a low melting point, good ability to fill uneven gaps, good vibration fatigue resistance and good comprehensive mechanical properties of brazing joints. It is used for brazing copper and copper alloys, steel and stainless steel, etc. Melting point 660-725.

Clean up the grease and oxide on the welding surface before welding. The welded part of the workpiece is preheated. Dip the welding wire with an appropriate amount of solder powder and solder paste.

After the temperature is slightly raised, the silver electrode is completely melted to the weld, and the welding can be completed.