What kind of light-emitting diodes (leds) print monitoring pole need?

Traffic signal in printing the logo on the surface, the surface treatment of substrates and remission the use function of printed material, printed material has the following requirements: 1, the surface treatment of substrates. Copper base and iron base materials need to wipe out the surface oxide layer in the dilute sulfur, and flushing water

traffic sign plate printing the logo on the surface, the surface treatment of substrates, the use function of printed material and printing material removal has the following requirements:

1. The surface of the printing material processing. Copper and iron base materials need to remove the surface oxide layer in the dilute sulfur, rinse with tap water, printing after drying. Aluminum material generally can remove the oil in the heat of sodium carbonate solution, and then after cleaning and drying online screen printing. Oil can also use organic solvent to remove, such as gasoline, banana oil, trichloroethylene, cyclohexanone, etc. , or by washing and cleaning, washing powder, special thinner and so on. If the metal substrate surface has serious pits, scratches and spots, oxide can be by mechanical polishing or brush, then in addition to the oil processing. 2. Printed materials. Wire mesh panels with printed material has many standard type, but used in etching screen plate picture and text printing materials only commonly use corrosion resistant material. It should have good film-forming, dry, good network, good corrosion resistance, easy to remove, and other functions. Common corrosion resistant materials for printing: thick paint printing materials. Paste paint printed material is a traditional printed materials. Paste paint generally made from thick paint drying oil, and by adding a certain amount of phenolic acid paint varnish, alkyd varnish, asphalt, etc. 3. Printed material removal: alkali liquor can be used for the printing of copper and iron base label materials, organic solvents, Such as banana oil and xylene) Can be used to remove aluminum tag. Alkali soluble anti-corrosive printed material. Alkali soluble anti-corrosive printed material is developed in recent years a new type of printed material, has the characteristics of quick drying, easy to take off the film. They are particularly suitable for mechanized production line.