soft solder

Fluxes for soft solder are currently available in three basic formulations:

Soft solder is so called because of the soft lead that is its primary ingredient.

There are two types of solder; soft solder and hard solder.

Today, flip chip is a well established technology and collapsed soft solder connections are used in the vast majority of assemblies.

Some soft solders are "silver bearing" alloys used to solder silver-plated items.

Soft solder melts easily with soldering irons and is used for electronics and electrical work.

Soft soldering uses the lowest temperatures but does not make a strong joint and is unsuitable for mechanical load-bearing applications.

For many years, the most common type of flux used in electronics (soft soldering) was rosin-based, using the rosin from selected pine trees.

A temperature of 450 C is usually accepted as the upper limit for soft solders, whereas hard solders have a higher melting point.

In antiquity, regardless of the metal being joined, soft solder was generally tin or lead or an alloy of the two.

Soft soldering can be done with a heated iron whereas the other methods require a higher temperature torch or furnace to melt the filler metal.

The corrosion resistance of CuproBraze is generally better than soft soldered heat exchangers.

Even the solder used to fabricate the oil reservoir was a problem when it was discovered that the soft solder joints leaked.

Soft solder filler metals are typically alloys (often containing lead) that have liquidus temperatures below 350 C.

Lead was far more important as a metal added to bronze to modify its properties and to alloy with tin to form pewter and soft solder.

The tin lead soft solder used on the ewer is very dense to X-rays and appears as white patches on the radiograph.

Tin/lead solders, also called soft solders, are commercially available with tin concentrations between 5% and 70% by weight.

This is near to 1.5mm, and it is soft enough to wrap tightly around the dowel, and accepts soft soldering for a neat fix.

"You have to use a cold solder or a soft solder, since a hot solder can destroy costume jewelry," Mr. Burton said.

In modern times tin is used in many alloys, most notably tin/lead soft solders, typically containing 60% or more of tin.

On soft soldered heat exchangers, the solder is less noble than fin and tube materials and can suffer from galvanic attack in corrosive environments.

Soft solder joins like a glue, without significant interdiffusion (or exchange) with the metals it bonds, leaving the composition of metal and solder essentially unchanged.

Brazing filler metal is stronger than silver solder, which is stronger than lead-based soft solder.

Fluxes for soft soldering are typically of organic nature, though inorganic fluxes, usually based on halogenides and/or acids, are also used in non-electronics applications.