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Thursday, 20 October 2011

What Are Welding Fumes?

 Welding Fumes 



Welding fumes and a little detail about forging welding - Forge welding is the oldest known welding process which has been practiced for centuries. The procedure is still used even though its application is limited because of the certain complexity connected with it.Welding fumes are toxic metal fumes produced during welding operations. They usually have different compositions, depending on the metals that are used for welding, and for this reason they contain several contaminants.

Metals which can be Forge Welded

Wrought iron and low carbon steels (with C content less than 0.2%) can be acceptable forge welded. Forge welding can be accepted out with metal thicknesses up to about 30 mm.When the welding rod or base metal is iron or mild steel, iron oxide may be contained in the welding fumes in addition to manganese. Breathing in iron oxide irritates your nasal passages, throat, and lungs.

Working with stainless steel may produce welding fumes containing nickel and chromium. If you have asthma, exposure to nickel can make your illness worse. Chromium can aggravate or cause sinus problems. Both nickel and chromium may cause cancer, according to NIOSH.


Which fumes and gases are produced during welding?

Fumes

  • Aluminum
  • Beryllium
  • Cadmium Oxides
  • Chromium
  • Copper
  • Fluorides
  • Iron Oxide
  • Lead
  • Manganese
  • Molybdenum
  • Nickel
  • Vanadium
  • Zinc Oxides
Gases
  • Carbon Monoxide
  • Hydrogen Fluoride
  • Nitrogen Oxide
  • Ozone
How can welding fumes and gases enter my body?

Welding fumes enter our body through the lungs, that is, we inhale them together with the air we breathe.

How can welding fumes affect your health?

Exposure to different types of welding fumes produce different health effects. If over the years you breathe in gases, fumes, and vapors in large quantities, your health will suffer.


  • irritation of the eyes, nose, and chest
  • coughing
  • shortness of breath
  • bronchitis
  • fluid in the lungs (edema)
  • Inflammation of the lungs (pneumonitis)
  • Loss of appetite
  • cramps
  • nausea / vomiting

Some short-term health effects are:
  • chronic lung problems (bronchitis, pneumonia, asthma, emphysema, silicosis, siderosis)
  • lung cancer
  • cancer of the larynx
  • cancer of the urinary tract

Other health problems that may be related to welding fumes are:
  • skin diseases
  • hearing loss
  • gastritis, ulcers of the stomach
  • kidney damage
  • heart disease

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