carburizer
Steel enrichment material
A carburizer is a carbon-rich material added to molten metal—typically steel or iron—to increase its carbon content.
Common carburizers include coal, coke, and graphite.
The process, called carburizing, hardens the metal's surface while keeping the interior tough and ductile: The foundry added carburizer to bring the carbon level up to specification.
Burned wood residue
- cokeCarbonized coal fuel
- methaneSimplest alkane fuel
- propaneFlammable hydrocarbon fuel
- graphiteCrystalline carbon allotrope
hydrocarbon · acetylene · energizer · activator · compound
Carbon-hardened iron alloy
- case-hardeningHardening metal's outer layer
- diffusionPassive molecular spreading
- hardeningBecoming less soft
- cementationMineral-binding of particles
surface · depth · penetration · microstructure · ferrite · pearlite · interstitial · alloying
Rapid cooling process
- temperingControlled heating and cooling
- annealingHeat-softening of metals
- nitridingNitrogen-based surface treatment
- soakingCompletely saturated with liquid
atmosphere · temperature · furnace · retort · endothermic
Enclosed heat-producing structure
- retortQuick, cutting reply
- muffleDeaden or suppress sound
- conveyorMechanism that transports items
- thermocoupleDual-metal temperature sensor
charcoal
Burned wood residue
graphite · hydrocarbon · acetylene · energizer · activator · compound
steel
Carbon-hardened iron alloy
- case-hardeningHardening metal's outer layer
- diffusionPassive molecular spreading
- hardeningBecoming less soft
cementation · surface · depth · penetration · microstructure · ferrite · pearlite · interstitial · alloying · core
quenching
Rapid cooling process
- temperingControlled heating and cooling
- annealingHeat-softening of metals
- nitridingNitrogen-based surface treatment
soaking · atmosphere · temperature · furnace · retort · endothermic
furnace
Enclosed heat-producing structure
gears
Toothed rotating machine parts
- shaftsVertical passages or poles
- bearingsAwareness of one's position
- camshaftsLobed rods operating valves
crankshafts · pinions · sprockets · axles · fasteners · tooling · dies · automotive · aerospace · drivetrain