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.
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 cause of pitting on the surface of the coating machine?
1. UV dryer equipment is widely used in many other fields such as electronics, optical fiber, liquid crystal display, printing, packaging and so on. Such as: scanning, packaging carton picture offset printing, nameplates, desk calendars, wall calendars and other UV curing inks, various business cards, calendar nameplates UV curing, a large cardboard drying curing equipment UV varnish. 2. Small electronic plastic hardware UV glue or UV curing ink, electronics, precision parts, magnetic heads, magnetic material optical sheets, liquid crystal displays, micro motors and UV light curing adhesives curing, liquid crystal display glass edge sealing UV adhesive curing equipment.
1. Put the UV coating of the roller coater into the product: put the object to be coated on the insert of the roller coater and start working; 2. Electrostatic dust removal: remove the oil and dust brought by injection molding; 3. Preheat: for more Good coloring gives the object a little temperature; 4. Primer spraying: cover the color of the plastic itself, and spray the base color first for the color required for production;
The working principle and structure of the sprayer end? The main working part of the spraying machine is a double-acting pneumatic hydraulic booster pump, and the reversing mechanism is a special form of pilot fully air-controlled air distribution reversing device. After entering the compressed air, when the piston moves to the upper or lower end of the cylinder, the upper pilot valve or the lower pilot valve is actuated, and the air flow is controlled to instantly push the air distribution reversing device to reverse, so that the piston of the air motor makes a stable and continuous reciprocating motion .
