Do you know why the galvanized lamp posts will rust?

Light pole belongs to a typical outdoor lighting products, from years of exposure to sunshine rain, so during the production of the light pole surface anticorrosion treatment requirement is very strict, but still, there are still a lot of cases show that the anticorrosion treated lamp posts there are signs of rust.

anti-rust treatment mainly hot dip galvanized solar street lamps, after dealing with the qualified hot dip galvanized lamp posts at least to ensure that won't rust in 15 years, but this is not absolute.

there are a lot of customers reflect the light pole once purchase rust took less than six months, as a rule, occurred within six months of this kind of phenomenon is almost impossible, unless it is galvanized process is unqualified, the lights or manufacturer in order to save cost, choose the cheap cold galvanizing as light pole antirust processing, after asking, appear this kind of circumstance and galvanized almost no relationship.

customers reflect the streetlights rusty parts are concentrated, rather than the irregular, all parts of the rust. Usually rusty part is concentrated in the joint, so it's not hard to explain, we know that light pole in the blackboard, With steel plate) Steckel mill after welding is complete, must pass grinding slag removal can be galvanized, because the light pole after galvanized surface is very hard, galvanized before if you don't clean up will be produced in the process of welding splash content, it is hard to clean up after galvanized, but there are exceptions, due to the time problem, galvanized before don't have enough time for processing welds and only wait until after the galvanized back grinding, this will specify the problems mentioned above.

conventional height of the new rural solar light pole surface galvanized thickness is 55 & mu; M, the thickness is negligible, galvanized after you come back with the Angle of grinding machine will directly harm the galvanized layer, destruction of the galvanized parts will lose rust resistance. So the only way to solve this problem before galvanized must will be polished joint parts of the clean up clean, galvanized after you come back, do not have to proceed to the secondary grinding, only such ability make galvanizing technology on anti-corrosion life in the big, at the same time guarantee the perfect quality of light pole.