Chemical element of atomic number 26 and fourth element more abundant on earth. It is a bluish white metal that, due to its allotropy, metastable state and characteristics that it presents when alloying with carbon and other substitution and interstitial elements, is an element of great potential in the field of materials. It is found…
DetailsSoftening treatment consisting of heating the steel above the critical temperature (generally 740 to 880 ° C) and then cooling to a temperature of 600 to 700 ° C, which is kept constant for several hours, to achieve the complete isothermal transformation of the austenite. The obtained hardnesses are low and can be graded according…
DetailsThis test consists of quenching a standardized specimen of steel that is the object of study. It is first heated to the austenization temperature, subsequently cooled by a stream of water at a flow rate and at a specified temperature, which only cools its lower face. This face acts as a quenchant surface and cools…
DetailsThey are deoxidized steels in the melting process. The main elements used to kill the steel are Silicon and Aluminium. The objective of killing the steel is to remove gases prior to the solidification of the steel, avoiding inclusions that can lead to internal defects (blowholes) or external (pinholes).
DetailsIt is a riveting steel container, coated with bricks and used to transport liquid steel. In its lower part has a hole to let the molten metal out. Normally in steel foundries, the secondary metallurgy is done in a ladle: the furnace hot metal is poured into the ladle where the refining and temperature adjustment…
DetailsChemical element that is added to steel to improve its machinability. Lead is almost insoluble in iron and when added to steels form small globules that cause two effects: embrittlement of steel, so that when it is machined by chip removal, it breaks more easily avoiding blunting and lubrication of the cutting tool, which allows…
DetailsEs besteht aus einer Feuerstelle mit Graphitelektroden. Der Lichtbogen springt zwischen den Elektroden und dem Metall zu schmelzen. Die hohe Temperatur im Lichtbogen (über 6000 ° C) sorgt für eine starke Schmelzkapazität. Diese Art von Öfen werden am häufigsten für die Herstellung von Stahl verwendet, insbesondere die Dreiphasen, wo drei vertikale Spalten von Elektroden verwendet…
DetailsIt is the ease that a material has to allow the process of machining by chip removal.
DetailsIt is a manufacturing process comprising a set of forming operations that starting from a workpiece and eliminating or removing part of the material forming it, the piece is obtained with the desired shape and dimension. It is made from semi-finished products such as ingot, billet or other pieces previously shaped by other processes such…
DetailsProcedure that is carried out to provide with magnetic properties to an iron or steel bar.
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