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1.The impurities during the extraction of a metal above the molten metal in a furnace containing mostly silicates are slag.
2.The impurities that form as a protective layer in welding that help control the cooling process, help suck some impurities from the weld, and prevent outside contaminents from entering the weld as it cool's, like oxygen that causes rapid rust while the metal is near multen hot, to multen.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoVolcanic slags are lightweight blocks. These are used as aggregates in lightweight concrete for construction of non-load bearing infill walls and slabs.
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What is the specific heat of slag?
209 kj/kg
Is a waste product from iron ore?
not yu get a life
How is plastic dyed?
Before the plastic is molded dyes are added to the molten plastic.
Why KCl or KF is added in the electrolysis of molten NaCl?
To decrease melting point of NaCl
What are facts about the blast furnace?
The oldest extant blast furnaces were built during the Han Dynasty of China in the 1st century BC, that's pretty interesting if you ask me. And of course the fact you get a 'SLAG' at the end.
What kind of fire bricks are used for molten blast furnace slag?
What kind of fire bricks are used for molten blast furnace slag?
What is a word for molten metal scum?
slag
What does molten slag contain?
molten slag mainly contain CaO, MgO, FeO, SiO2 etc.
What is difference between slag and matte?
slag is iron silicate (FeSiO3) while Matte is a crude mixture of molten sulphides.
What is added to remove rocky waste and it forms molten slag?
Limestone
What is slag powder?
Slag is the unwanted stuff that floats on top of molten metal. It is often glassy. My house has slag powder as insulation in the floors (it was built in 1940 and there was (and still is) an iron foundry in the town.
Which material formed during smelting is denser molted metal or slag?
The molten metal is the denser material, the slag floats on top of it and can be "scooped" off during the smelting process.
What are the 2 liquids that are tapped off from a blast furnace?
liquid or molten pig iron and liquid slag
What is slag from welding?
Slag is the residue left on a weld bead from the flux. It shields the hot metal from atmospheric contaminants that may weaken the weld joint. Slag can also be globules of molten metal that are expelled from the joint and then re solidify on the metal surface. in either case, they are usually chipped away with a slag hammer.
What do mean by flux and slag?
In (SMAW) Shielded Metal Arc Welding 'stick welding': Flux is the substance added to to molten metals to bond with impurities that can be readily removed. Slag is the waste material which is removed.
Why is oxidizing flame desirable in welding of copper alloys?
because a thin-protective layer of slag is formed over the molten metal
What are the causes of slag inclusion?
Slag inclusions are nonmetallic solid material entrapped in weld metal or between weld metal and base metal. Slag inclusions are regions within the weld cross section or at the weld surface where the once-molten flux used to protect the molten metal is mechanically trapped within the solidified metal. This solidified slag represents a portion of the weld's cross-section where the metal is not fused to itself. This can result in a weakened condition which could impair the serviceability of the component. Inclusions may also appear at the weld surface. Like incomplete fusion, slag inclusions can occur between the weld and base metal or between individual weld passes. In fact, slag inclusions are often associated with incomplete fusion. Daniel
