來源：http://www.mallhometrade.com 發布時間：2022-06-25 15:38:43
When performing sand blasting surface treatment for sand blasting angular aluminum, the sand blasting equipment shall be as close to the work as possible to reduce the loss of pipe length and pressure, reduce the probability of pipe wear, and facilitate the contact of operators. In order to better reduce shifts, prevent empty discharge or leakage, and improve the utilization rate and work efficiency of abrasive materials, comprehensive consideration shall be given to reasonably arranging the injection location and formulating the injection path before construction.
The rubber hose is subject to force sandblasting, and the angle aluminum sandblasting surface treatment is required to reduce the pressure loss and the concentrated wear of abrasive on the rubber hose. For places that must be bent during construction, the direction shall be changed frequently to make the wear uniform and prolong the service life of the hose. During the surface treatment of sand blasting angular aluminum, the material gas ratio shall be adjusted in time according to the air pressure, nozzle diameter, treatment quality, structural surface corrosion status, efficiency and other factors.
The moving speed of the nozzle shall be flexibly controlled according to the air pressure, sand production and the pollution of the structure surface. Before the surface treatment of sand blasted angular aluminum, if the base metal surface is found to be contaminated or rusted, it must be treated again.
After the processing inspection is qualified, the sandblasted angular aluminum surface shall be sandblasted and sprayed as soon as possible. The shorter the interval, the better. Under humid or industrial atmospheric pressure and other environmental conditions, the coating must be completed within 4 hours, and the interval between sunny days or when the temperature is not too high shall not exceed 12 hours. After sand blasting of angular aluminum surface, use dry, oil-free compressed air to remove floating dust and debris. The cleaned surface shall not be touched by hands.
In addition, the aluminum plate manufacturer reminds you to select a film with moderate viscosity when selecting samples. In the production of aluminum plate, the reasonable choice of film is the key. If the viscosity of the film is too low, it will not stick. The film is easy to fall off, which brings considerable difficulty to spraying. If the viscosity of the film is too large, it means that there are more glue on the film. When the film is torn off, it is easy to stick the glue on the film to the profile, which will affect the surface quality of the profile. On the other hand, when selecting the film, the composition of the glue should be consistent with or close to the paint composition as far as possible, so as to reduce the impact on the color of the paint film.
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