What's the difference between a light, cold galvanized and hot dip galvanized?

Light, the material handling process is different with no differences between cold galvanized and hot dip galvanized, so what is the difference in use? Then introduce you to everyone. High lamp cold galvanizing is the use of electrolytic equipment light pole to be included in the composition of zinc salt solution, and

high lamp of materials processing technology is different with no differences between cold galvanized and hot dip galvanized, so what is the difference in use? Then introduce you to everyone. High lamp cold galvanizing is the use of electrolytic equipment light pole to be included in the composition of zinc salt solution, and connect the cathode electrolytic equipment, across the tube placed zinco, connected to the anode electrolytic equipment, power supply is connected using current from the positive to the negative directional moving deposits a layer of zinc on the pipe fittings, cold plated pipe is galvanized after processing first, LED street light, so also known as electric galvanized, cold galvanized coatings mainly through electrochemical principle for corrosion protection, so must ensure that the full contact of zinc powder and steel electrode potential difference, so when making steel surface treatment is very important. Light, hot dip galvanized is put high lamp in the zinc pool, is the hot zinc liquid, into a liquid, jiang room light pole which drenched, will attach a layer of zinc in the surface of light pole, is a physical change process. Cold galvanizing on the surface of zinc is less, so the light pole oxidation and corrosion resistant effect is poorer, rotten faster in the humid climate of high temperature environment, usually use fewer in the humid environment of high temperature, the surface of hot dip galvanized zinc layer thicker, oxidation and corrosion resistant function is good, so it is best to use in the damp heat environment of hot galvanizing light pole.