Last time, a customer complained that the price of your street light pole is so expensive. Is it the manufacturer? The sales explained that we are hot-dip galvanized light poles. The customer said that they are all galvanized light poles, and others are very cheap. Street light poles only need to be galvanized? See what the manufacturer says Many customers think that it is good when they hear galvanized street light poles. In fact, they do not know that galvanizing is divided into hot-dip galvanizing and cold galvanizing. Hot-dip galvanized street light poles are expensive and of good quality. If the price of the light pole is too cheap, it may be cold galvanized, so ask clearly. What is the difference between hot-dip galvanizing and cold galvanizing of
solar street light poles? Let's talk about the process flow of hot-dip galvanizing of street light poles: pickling of finished products - washing - adding plating solution - drying - hanging plating - cooling - chemical chemical - cleaning - polishing - hot-dip galvanizing is completed. In fact, hot-dip galvanizing can be said to be hot-dip galvanizing or hot-dip galvanizing. The process of hot-dip galvanizing is an effective method of metal anti-corrosion, mainly used in metal structures. So how does hot-dip galvanizing work? Hot-dip galvanizing is to immerse the rust-removed steel parts in a molten zinc solution of about 500 ° C, so that the surface of the steel parts is attached with a zinc layer, so as to achieve the purpose of anti-corrosion. Rusted again. The service life of hot-dip galvanized street light poles is about 15 years. Cold galvanizing is also called electro-galvanizing. Put the degreasing and pickling steel into the zinc salt solution, connect the negative electrode of the electrolytic equipment, put the zinc plate on the opposite side, and connect the positive electrode of the electrolytic equipment. Moving from the positive electrode to the negative electrode, a uniform, dense and well-bonded zinc deposit will be formed on the surface of the steel pipe. Usually, the thickness of the cold galvanized coating is generally only 3~5μm. Although the production cost is low, it is easy to rust, and it is easy to rot when rusted. It not only affects the beauty of the street light pole, but also greatly reduces the service life, and the service life is about 2-3 years. Therefore, cold galvanized street light poles have been gradually phased out. Street light poles only need to be galvanized? See what the manufacturer says? So if a solar street light pole manufacturer tells you that their galvanized poles are hot-dip galvanized or cold-galvanized. The difference between the two is very different in price and quality.
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Guangzhou Litel Technology Co.,Ltd.’s model also predicts (i) a positive effect of management on firm performance; (ii) a positive relationship between product market competition and average management quality (part of which stems from the larger covariance between management with firm size as competition strengthens); and (iii) a rise (fall) in the level (dispersion) of management with firm age.
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