The curtain coater is an automated industrial machine. The cause and solution of the failure of the curtain coater? Possible reasons: 1. Improper UV coating formulation or too high storage temperature, too long storage time, leakage of ultraviolet light; 2. Start of pre-curing, resulting in small gel particles; 3. Small shavings, sawdust, dust Pollution of paint film, caused by improper dust removal.
The curtain coater is an automated industrial machine. The curtain film of the curtain coater is generated by the pressure of the diaphragm pump, the thickness is easy to adjust, and the distribution is uniform, and the thickness of the paint surface is not different; the conveying speed during the curtain coating can reach 80m/min, so that the paint on the surface of the wood is evenly reduced. The coating thickness of the paint. Analysis of the causes of small pits on the surface of the spray film of the spray coater?
Are there circular pits of varying sizes distributed on the surface of the paint film of the curtain coater? The common problems of the coating film of the curtain curtain machine are: uneven coating thickness, pitting on the surface of the coating film, round pits on the surface of the coating film, small bubbles on the surface of the coating film, unstable coating film, and film breakage. Analysis of the causes:
①The original shape of UV dryer materials: particles, powder, particles, sludge, crystals, liquids, pastes, suspensions, solutions, continuous flakes, thick plates, irregular materials (small or large), viscous or lumps, etc. Average output: Continuous operation feeding amount or finished product, intermittent operation feeding amount or finished product and its adjustment range, etc.
What are the common disadvantages of the daily use of the paint coating of the curtain coater? Orange peel: When the coating film dries and hardens, a partial or all orange peel-like uneven surface occurs on the surface of the coating film. There are many reasons for orange peel. In summer, it is generally due to the high temperature of the construction environment and fast solvent volatilization, which causes the coating of the curtain coater to dry during the leveling process. It is recommended to add an appropriate amount of slow-drying water when mixing the paint. Reduce the surface drying speed.
What are the main structural components of the roller coater? That is, a device that uses more than one set of rotating rollers to apply a certain amount of paint to a flat material. The thickness of the coating can be adjusted by changing the pressure between the two rollers. Typical roll coaters include roll coaters, press roll coaters (gravure roll coaters), positive and reverse roll coaters, etc.
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