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神马影视网Welding is the most common method of joining metals in industry today. When welded, two pieces of similar metals are fused (melted) together. Once completed, the welded joint is as strong or stronger than the pieces from which the joint is formed. General hazards of welding include impact, penetration, harmful dust, smoke, fumes, heat and light radiation.
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NEVER weld without a proper face shield, and be sure to wear proper welding gloves. Closed shoes and long-sleeved, non-flammable shirts must be worn. Never weld on or near anything that’s been cleaned with a chlorinated hydrocarbon, such brake-cleaner. When combined with UV light, this can create phosgene gas, which is capable of killing or badly injuring anyone who is exposed. Please note that ventilation will not prevent poisoning.
Always wear ear protection (earplugs or muffs) if there is any chance that a stray spark could bounce or fall into your ear canal. An eardrum punctured by a spark will instantly cauterize and never heal. If you burn yourself, immediately douse the affected area with cold water.

Fire Safety
Make sure the weld area is free from all flammable materials such as flammable liquids, paper, etc. Do not wear clothing or gloves that have been exposed to flammable liquids.

Electrocution
Prior to turning on a weld machine, check that there are no puddles of water on the floor around the weld bench or the machine. Make sure the weld machine is dry, including the main box, the torch, the pedal and the plug.

Burns
Welded metal will remain hot for several minutes after it is welded. In most cases the heat is localized near the welds itself. In cases of more conductive materials such as copper and aluminum, the heat may be more distributed throughout the entire piece.
Gloves must be worn when welding and handling recently welded material. White cotton welding gloves may be used for light welding, as long as they are free from holes. For heavier welding, deerskin or heavy duty welding gloves should be used. Closed shoes are also a must.

UV Burns
Since it is so much closer, the light emitted from a weld arc is much brighter than that of the sun. Never look at an arc without wearing a full-faced welding mask; with a shade 10 or darker filter plate. Always make sure the weld curtains are in place between the welders and other people in the shop. Also be sure to cover any exposed skin while welding or observing inside the weld area, including cuffs and collar areas. The rays from the arc can cause a UV burn that is much more damaging than any sunburn.
As the welding industry is growing and becoming a more successful occupation, more and more people are training to become technicians. Whether you are new to the profession or have been on the job for years, these tips will help secure your personal safety and the safety of others while welding.