22

2021

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08

Do you really understand silver solder?

Author:


Properties and Advantages of Silver Solder 1. Description of Physical Properties: Silver solder is a deep welding rod made of silver or silver-based solid, featuring excellent process performance, low melting point, good wettability, ability to fill gaps, strength, plasticity, electrical conductivity, and good corrosion resistance. It can be used for welding all black and non-ferrous metals except aluminum, magnesium, and other low melting point metals.

  Silver solderProperty advantages

  

Silver solder


1. Description of physical properties:Silver solderIt is a deep welding rod made of silver or silver-based solid, with excellent process performance, low melting point, good wettability, ability to fill gaps, strength, plasticity, conductivity, and good corrosion resistance. It can be used for welding all black and non-ferrous metals except aluminum, magnesium, and other low melting point metals.

2. Characteristic advantages: Silver welding rods have good fluidity, low cost, and excellent process performance.

2. The melting point, wettability, and gap-filling ability of silver are not high.

The strength, plasticity, conductivity, and corrosion resistance of silver welding rods are all very good.

Brazing copper and silver has weldability; solder cannot be used. It is suitable for contact welding, gas flame welding, high-frequency brazing, and some furnace soldering. Brazing has strong strength and good conductivity.

The cost of the welding rod is low; it is suitable for welding copper and copper alloys.

  Silver solderApplication fields

Widely used in industrial manufacturing fields such as refrigeration, lighting, hardware electrical appliances, instruments, chemical industry, aerospace, etc.

Selection of silver solder grades

Current national quality standards take a certain silverware welding rod as a reference standard: 1. Silverware, copper, phosphorus, environmental solder (silver-copper, phosphorus solder) grades and performance

HAG-2B 2% is equivalent to the American standard AWS BCuP-6, national standard BCu91PAg and L209. It has good fluidity and charging ability and is widely used in air conditioning, refrigerators, machinery and other industries for brazing copper and copper alloys. Melting point: 645-790 degrees Celsius.

HAG-5B contains 5%, equivalent to the American standard AWS BCuP-3 national standard BCu88PAg and L205. It has plasticity suitable for welding loosely fitted copper and alloy joints. Melting point: 645-815 degrees Celsius.

HAG-15B contains 15%, equivalent to the American standard AWS BCuP-5 national standard BCu80AgP and L204. The connector has good plasticity and improved conductivity, especially suitable for uneven spacing situations. It can carry oscillating loads at the interfaces of copper and alloy materials. Melting point: 645-800 degrees Celsius.

Frequently usedSilver solderComparison table: HYAg-50B is used in electric welding rods (silver solder wire, silver solder layer), melting temperature: 690-771; applied in smart electronics, food categories and materials that bear oscillating loads.

HYAg-47B electric welding rod (silver solder wire, silver solder layer) melting temperature: 662-760; comprehensive performance is good with good toughness, permeability coefficient, and elongation rate. Frequently applied in electromechanical parts that require high surface polishing.

HYAg-45B is an electric welding rod (silver solder wire, silver solder layer) melting temperature: 645-690; processability enhanced; interfaces that can bear oscillating loads are widely applicable silver materials. HYAg-40B is used in electric welding rods (silver solder wire, silver solder layer) melting temperature: 600-630; low melting point with good production process; more suitable for quenching steel and thin parts brazing.

HYAg-35B is used in electric welding rods (silver solder wire, silver solder layer) melting temperature: 607-702; applied in heat exchanger electric welding.


Solder, silver brazing, gas flux, copper solder paste, silver solder

29

2024-01

Notice on the Spring Festival Holiday in 2024 Huizhou Wufu Industrial Document [2024]002

Please remind employees to pay attention to their health and driving safety during the holiday period, ensuring personal and property safety. Wishing all colleagues a Happy New Year and family happiness!

10

2022-07

Aluminum welding flux is a flux used during aluminum welding.

The use of aluminum welding agent: used for aluminum wire, aluminum wire, aluminum wire, and copper. Welding of aluminum wire with iron and stainless steel. The scope of application of aluminum welding agent: suitable for the production of various high and low transformers, power distribution boxes, lighting distribution boxes, high-power regulators, high-precision fully automatic regulators, isolated various transformers, motors, etc.

30

2022-06

Aviation brazing materials are developing towards lower costs.

As the use of precious metals gradually decreases, materials for aerospace brazing are also developing towards lower costs. At the same time, in order to bring sensors closer to rocket engines and improve safety, it is necessary to develop better brazing materials. The average launch cost of the space shuttle is estimated to be $4.5 billion per mission. Figure 1 shows a ceramic sensor connected to the engine with active brazing material.

29

2022-06

The task control center plays an important role in handling soldering materials.

In recent years, with the rapid development of the industry, the domestic major brazing material manufacturing enterprise Huaguang New Materials has successfully landed on the Sci-Tech Innovation Board. After more than twenty years of accumulation, it has strong product formula research and development capabilities, processing equipment and process innovation capabilities, forming a leading technical system in the industry that integrates formula research and development, production process control, and quality inspection.

20

2022-06

Brazing process solutions, brazing equipment consulting, advanced brazing materials

Diamond grinding wheel brazing tools. Non-metal vacuum brazing (metal brazing, diamond, hard alloy, carbon-carbon silicon carbide composite materials) complete solutions, including processes, equipment, and brazing materials. Complete solutions, including processes, equipment, and brazing materials. PCD oil drill bits. PCD oil drill bits. The brazing platform in collaboration with Harbin Institute of Technology, Shandong University, Tianjin University, Northwest University of Science and Technology, Jiangsu University of Science and Technology, Shandong University of Science and Technology, Beijing, Shanghai, Lanzhou hospitals will continue to provide you with brazing process solutions, brazing equipment consulting, and advanced brazing materials.

15

2022-06

Selection of Gas Shielded Welding Wire - Flux-Cored Wire

Gas shielded welding wires are divided into solid wires and flux-cored wires. In our country, solid wires are mainly used, but flux-cored wires are rapidly becoming popular and have a broad application prospect. Flux-cored wires have advantages such as good welding performance, high welding quality, and strong adaptability to steel. Flux-cored wires can be used for welding various steel structures, including low carbon steel, low alloy high strength steel, low temperature steel, heat-resistant steel, stainless steel, and wear-resistant overlay welding. Next, let's take a look at the selection of gas shielded welding wire - flux-cored wire.

08

2022-06

How to choose welding wire for gas shielded welding of steel?

Whether it is a large professional production line in a factory or on-site processing projects involving steel welding, it requires professional welders to use specialized welding techniques and reliable welding materials to connect the steel. Especially in the processing and welding of refined steel curtain wall profiles in factories, it is necessary to ensure not only high welding strength but also the aesthetics and straightness of the weld joints. Next, let's discuss how to choose gas shielded welding wires for steel welding.

28

2022-05

Types of gas shielded welding wires

Gas shielded welding wires can be said to be everywhere in daily life, but most people do not pay attention to these things. They play a huge role in our lives and work. They are found in the circuits of light bulbs, in the circuit boards of televisions, in the wires of rice cookers, and so on. Although we do not often come into contact with welding wires and non-professionals may not pay special attention, they are indispensable in our lives. Next, let's specifically discuss the types of gas shielded welding wires.