Does the welding rod have a shelf life?
Welding rod has shelf life,The quality index of storage time exceeds a certain time limit, changes in different degree of quality (metamorphic). Various types of electrodes are stored for a long time, and sometimes white crystals are found on the surface of the electrode. This is usually caused by water glass. Packing should be improved to prevent moisture absorption of welding rod and must be properly kept in storage. All kinds of welding rod are seriously deteriorated, and the batch of medicine is seriously falling off. The welding rod should be scrapped.
Must have ah, Pro is generally two or three years, but save the good words, do not let him wet, you can put many years of welding rod, afraid of moisture, and what problems can ask me again
This does not necessarily depend on your preservation of the environment and the variety of electrodes, and some electrodes have been preserved for more than ten years, the use of performance is still very good. As long as it is not damp and the skin falls off, it can continue to be used.Material shelf life is not strictly required, the pressure vessel required if more than one year, should carry on the inspection, inspection qualified can continue to use, every year to conduct a test, you can still continue to use qualified.If the welding pool conditions, welding save no moisture, no deterioration, after inspection and acceptance, can still be used.If not assured, you can downgrade to adopt. There is not willing to do more information (welding rod to continue inspection of qualified data), can also be downgraded. Other industries, did not see the relevant standards requirements.Our welding wire has been produced in Japan in 1949. The welding rod has been produced in Japan in 60s and 70s. It has been well preserved. Now the chemical field inspection and maintenance are still in use. The effect is very good and the quality is not a problem.
