METAL HEAT TREATMENT & OIL SMOKE/MIST

Heat treating is a method that utilizes a group of metalworking processes to alter the physical, electrical, or magnetic properties of a material. Metal heat treatment implements extreme temperatures to achieve the hardening or softening of a material.

During the heat treating process, metal material is heated, soaked, and then promptly chilled, producing and transmitting oil mist and smoke. Metal heat treating may consist of both oil mist and smoke, with oil smoke causing a larger concern due to the size and volume of particles.

Oil mist consists of droplets that are up to 20 microns while oil smoke is made of drops smaller than 1 micron (submicron) and are emitted in larger concentrations.

If a metalworking environment doesn't have a proper filtration system in place, the air stream will become contaminated quickly, resulting in serious health hazards, damage to equipment, and a decline in productivity.

Nederman oil smoke collectors are designed to capture 99.95% @ 0,3 submicron making them the most effective systems for oil smoke and mist filtration.

Metal Heat Treating Processes

  • Normalizing
  • Stress Relieving
  • Hardening
  • Case Hardening
  • Precipitation
  • Tempering
  • Quenching
  • Carburizing
  • Annealing
  • Sintering

Heat treating processes differ in the temperatures of heat and velocity of cooling used to develop final products or parts. However, all heat treatment processes are similar in the fact that they implement the heating and cooling of metals.

Ferrous metals, metals with iron, are normalizing, annealing, tempering, and hardening.

Non-ferrous metals have the capability to be annealed, but cannot be case hardened, tempered, or normalized.

How Metal Heat Treatment Works

  1. Heating a metal or alloy part to a regulated temperature
  2. Soaking the temperature for a specific period of time
  3. Cooling the part quickly or slowly at a controlled speed

This method changes the microstructure of the material to alter its mechanical properties (strength, flexibility, resilience, and wear retainment).

Metal Heat treating is commonly used for:

  • Advancing tool steels cutting propeties
  • Removing stresses
  • Modifying magnetic properties
  • Enhancing electrical properties
  • Improving metal properties to reduce material costs
  • Reforming steel grain structure
  • Integrating high tensile strength and adaptability to boost impact strength
  • Increasing surface wear resistance by altering the hardness of a material to better withstand impact

Why Nederman for Mist & Smoke Collection?

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