| 摘要 |
<p>A method for removing a membrane coated on a bulb for the use of a cathode ran tube, the method comprising steps of spraying a membrane-corrosive solution on the bulb having been coated on a panel, washing the corroded membrane and drying the bulb. The solution comprises acidic ammonium fluoride ((NH4)2HF), hydrofluoric acid(HF), sulfuric acid(H2SO4), and citric acid. The acidic ammonium fluoride has an activity corroding the membrane and is 5 to 10 percent by weight of the total weight of the solution. The hydrofluoric acid has the same activity as the acidic ammonium fluoride and is 1 to 5 percent by weight of the total weight of the solution. The sulfuric acid has an activity of activating electrolysis and is 0.05 to 0.1 percent by weight of the total weight of the solution. The citric acid is a deodorizer of the solution and is 0.005 to 0.01 percent by weight of the total weight of the solution.</p> |
