flux, in metallurgy, any substance introduced in the smelting of ores to promote fluidity and to remove objectionable impurities in the form of slag. Limestone is commonly used for this purpose in smelting iron ores. Other materials used as fluxes are silica, dolomite, lime, borax, and fluorite.
What is the purpose of flux?
The main purpose of the flux is to prepare the metal surfaces for soldering by cleaning and removing any oxides and impurities. Oxides are formed when metal is exposed to air and may prevent the formation of good solder joints.
What are 2 purposes of flux?
Flux dissolves the metal surface oxides that facilitate the molten metal wetting and acts as a barrier to oxygen and minimizes oxidation. Fluxes are used to generate a surface for wetting the solder.
Why is flux added?
Flux added during smelting is to remove slag.
What is the unit for flux?
The SI unit of magnetic flux is the Weber (Wb). A flux density of one Wb/m2 (one Weber per square metre) is one Tesla (T).
What metal is flux?
Common fluxes are ammonium chloride or resin acids (contained in rosin) for soldering copper and tin; hydrochloric acid and zinc chloride for soldering galvanized iron (and other zinc surfaces); and borax for brazing, braze-welding ferrous metals, and forge welding.
What is called flux?
Flux is the presence of a force field in a specified physical medium, or the flow of energy through a surface. In electronics, the term applies to any electrostatic field and any magnetic field . Flux is depicted as “lines” in a plane that contains or intersects electric charge poles or magnetic poles.
What is flux and slag?
Flux is a material or substance that is added to molten metals in order to bind with easily removable impurities. Slag is the end product obtained by the combination of gangue with flux. The process of metal refining requires the use of fluxes. They are also used in metal joining as well as extractive metallurgy.
What is flux made up of?
Fluxes are made from a combination of organic and inorganic materials including but not limited to ammonium chloride, resin acids, zinc chloride, hydrochloric acid, and borax. But many fluxes also include alloyed metal powder to help welds acquire certain mechanical properties such as hardness, tensile strength, etc.
What are three purposes of flux?
The functions of the flux are: to assist arc striking and stability. to form a slag that will protect and shape the weld bead. to form a gas shield to protect the molten filler metal being projected across the arc gap.
What are the types of flux?
Fluxing agents are normally divided into three classes: rosin flux, acid flux (organic), and acid flux (inorganic). Rosin flux- Out of these three, rosin fluxing agents are definitely the oldest. Yet it is still counted among the most common fluxing agents used for soldering electrical components.
What is the symbol for flux?
Φ
Magnetic Flux Symbol
Magnetic flux is commonly denoted using the Greek letter Phi or Phi suffix B. Magnetic flux symbol: Φ or ΦB.
What is an example of a flux?
The definition of a flux is a flow of liquid from the body, or a constant movement or change. An example of flux is diarrhea. An example of flux is an ever changing list of the responsibilities of a specific job.
Is all flux the same?
There are three different categories of fluxes used to solder electronics according to IPC J-STD-004B, Rosin and Rosin Substitutes, Water Soluble, and No-Clean. After the soldering process, the rosin and water-soluble fluxes need to be chemically cleaned to remove any excess flux residue that remains.
Can flux be negative?
Solution : Yes, electric flux can be a negative number. When electric lines emerge out of surface, the electric flux is positive and when those lines enter into a surface, the electric flux in negative.
How is flux calculated?
To find the total flux, we simply find the flux over the curved surface area by integrating, then find the flux through the two ends, and add them all up. This then defines all the ˆn vectors uniquely.
How is flux measured?
Magnetic flux is usually measured with a fluxmeter, which contains measuring coils and electronics, that evaluates the change of voltage in the measuring coils to calculate the measurement of magnetic flux.
What makes a good flux?
A good flux spreads itself on the metal surface
A flux that spreads itself on the surface properly will look flatter and cover more surface area. This is known as wetting to the surface. A flux that doesn’t wet to the surface will stay where you put it and not clean any other areas.
Who invented flux?
The flux capacitor was invented by Doc Brown (Christopher Lloyd), and allows Marty McFly (Michael J. Fox) to time-travel. A flux capacitor is a bit of fun sci-fi technobabble made up of two pieces of genuine scientific terminology.
What is flux in chemistry?
Flux is a chemical purifying agent, flowing agent or cleaning agent. Most commonly, it is used in metal joining and metallurgy. Some examples of flux include: Ammonium chloride. Zinc chloride.
Where does flux come from?
flux, in metallurgy, any substance introduced in the smelting of ores to promote fluidity and to remove objectionable impurities in the form of slag. Limestone is commonly used for this purpose in smelting iron ores. Other materials used as fluxes are silica, dolomite, lime, borax, and fluorite.
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