Carbon is infused with the metal at a depth specific per application. If you aren’t sure which method to use for your industrial gearbox and its components, looking at the manual or speaking with a professional can help. The coils create a magnetic field that induces an electrical current to run through the metal. Induction hardening is similar to flame hardening, but it uses electronically induced coils instead of an open flame. Cam shafts, fuel injection pumps, and valve stems are typically hardened by this process. Carburising; Nitriding; Cyaniding; Induction Hardening; Flame Hardening; Purpose of Case Hardening process. Another method of surface hardening, called nitriding, utilizes nitrogen and heat. Double-quench hardening. Flame hardening and induction hardening, in which high heat is applied for a short time (by gas flame or high-frequency electric current , respectively) and then the steel is immediately quenched, are used generally for larger implements . Case hardening can take place several times to increase the depth of the hardened metal. Once the surface comes to the desired temperature, it gets quenched. Usually, Hardening process will improve the brittleness uniformly throughout the body of the material. You can call us at (806) 622-1273 or Contact Us by email to learn more about our Amarillo Gear™ and Marley™ gearbox repair services. In principle, a combination of core and surface hardening is also possible. We are a division of Amarillo Gear Company, which has been in continuous operation since 1917. The process is repeated until the steel has a hardened surface that surrounds an unchanged core. The surface gets heated to the desired temperature before quickly getting quenched. 8948 Centerport Blvd, SP 400 Amarillo, Texas 79108, 13189 Ronald Reagan Hwy Covington, Louisiana 70433, Copyright © 2015 Amarillo Gear Servies. Most experts agree that there are two methods of this heat treating technique, and each provides a much different approach. This method of surface hardening can be used for smaller industrial gearbox components. This method is generally used on metal alloys that have a low carbon content. Here we use case hardening to harden the outer layer and … Case hardening helps to make sure the core of the metal remains untouched because the properties themselves have remained unchanged as well. The method of heating the metal is different, but each process is followed by quenching the hot surface after reaching a desired temperature. They are. There are different Surface Hardening or Case Hardening processes. We will be glad to tell you more about the Regions We Service and the quality workmanship we can bring to the repair or Renewal of your drive. Case hardening is a simple approach that hardens the surface of a material by infusing elements into the metal. For industrial gearboxes, case hardening can protect many components by creating a stronger surface. Carburizing, also referred to as Case Hardening, is a heat treatment process that produces a surface which is resistant to wear while maintaining toughness and strength of the core. Two common methods are used to infuse an element into the surface area of a metal alloy in this surface hardening technique. It forms a thin layer of hardened alloy called a case. This process involves heating the metal, like steel, until it becomes red hot, then removing it from the hearth and plunging into cold liquid. Single quench hardening specifically influences the properties of the surface (surface hardening) or the core (core hardening)! This can prevent wear and tear from damaging your equipment too quickly. Heat treatment is used to modify the properties of a material, especially in metallurgy or in industries that deal with the production and purification of metals. Case hardening is a simple approach that hardens the surface of a material by infusing elements into the metal. There are four major types of heat treatment methods: annealing, tempering, hardening, and normaling. An increase in temperature will allow the carbon to be absorbed into the metal and slowly diffused onto the surface layer. This is called quenching the steel and it helps to make the surface more accessible to the element it will be infused with once cooled. This method is generally used on metal alloys that have a low carbon content. Hardening is popular among those who want to increase the hardness of the metal for strength and durability. - Terms & Conditions - Warranty, 4 Helpful Noise Reduction Strategies For Industrial Gearboxes, Prevent Overheating By Reducing The Temperature Of Your Gearbox, 6 Tips For Getting The Most Out Of Your Gearbox Filtration System, How Temperature Can Affect Your Industrial Gearbox, Why Proper Filtration Is Critical To Your Industrial Gearbox. Surface hardening is one such routine surface treatment, which either transforms the vulnerable surface into a hard layer through nitridation, oxidation, boronizing, or ion implantation, or coats the surface with wear-resistant materials such as chromium, tungsten carbide, or alumina. Case hardening and surface hardening each have their benefits. Surface hardening increases the hardness of the metal’s surface while keeping the core soft. The biggest difference between each process is that case hardening creates a thin layer on the surface. Surface hardening hardens the outer surface and keeps the core soft throughout the entire process.