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Brief Introduction and Classification of Basic Structure of Box Quenching Furnace

Brief Introduction and Classification of Basic Structure of Box Quenching Furnace

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[Abstract]:
Boxquenchingfurnaceisaperiodicoperationfurnace,whichissuitablefortheheattreatmentofrodandlongshaftparts.Thestructureoftheboxquenchingfurnaceisthatthefurnacebodyisadeepcylindricalwell,andtheworkpieceisheatedverticallybyaspecialcrane.Thefuelusedisusuallygasandfuel.Whenelectricityisusedasheatsource,itiscalledwellresistancefurnace.Boxquenchingfurnaceisgenerallyplacedbelowtheflooroftheworkshop,butalsoaboveorbelowhalfofthefloor.Thenamesofboxquenchingfurnaceincludeforcedconvectionboxquenchingfurnace,naturalconvectionboxquenchingfurnace,wellgascarburizingfurnace,etc.Theboxquenchingfurnacecanbeheatedeitherbygasorliquidfuelorbyelectricity.Whenusinggasfuel,thereareusuallyseveralsmallenergyburnersinstalledalongthetangentialdirectionoftheinnerwallofthefurnace.Theburnersareevenlyarrangedinlayersorspiralsinheighttoavoidthedirecterosionoftheworkpiecebytheflameandensuretheuniformtemperatureinthefurnace.Whenusedforlowtemperaturetemperingoroilastendermaterial,athinmufflewallisbuiltinthefurnacetoseparatethecombustionspacefromtheheatingspace,buttheboxquenchingfurnacewithmufflewallconsumesmorefuel.
Box quenching furnace is a periodic operation furnace, which is suitable for the heat treatment of rod and long shaft parts. The structure of the box quenching furnace is that the furnace body is a deep cylindrical well, and the workpiece is heated vertically by a special crane. The fuel used is usually gas and fuel. When electricity is used as heat source, it is called well resistance furnace. Box quenching furnace is generally placed below the floor of the workshop, but also above or below half of the floor.
The names of box quenching furnace include forced convection box quenching furnace, natural convection box quenching furnace, well gas carburizing furnace, etc. The box quenching furnace can be heated either by gas or liquid fuel or by electricity. When using gas fuel, there are usually several small energy burners installed along the tangential direction of the inner wall of the furnace. The burners are evenly arranged in layers or spirals in height to avoid the direct erosion of the workpiece by the flame and ensure the uniform temperature in the furnace. When used for low temperature tempering or oil as tender material, a thin muffle wall is built in the furnace to separate the combustion space from the heating space, but the box quenching furnace with muffle wall consumes more fuel.