Výroba kovových nádob a proces striekania
Výroba kovových nádob a proces striekania
Metal Pails are usually sprayed by high-pressure airless spraying and air spraying. Air spraying has strong adaptability and high efficiency. The main disadvantage is that the paint loss is large and the environmental pollution is large. It is best to use mechanical spraying for shaping Metal Pails products, and high-pressure airless spraying is the most ideal." (Closed paint iron drum) The coating application process has certain particularities, which are mainly controlled from three aspects. Surface treatment, spraying .Baking etc.
1: Odmasťovanie povrchu kovových vedier
Use special surface degreaser for steel plates. When degreasing, immerse the barrel body, barrel bottom, and barrel cover in the degreasing tank. After soaking for 5 minutes, use special cleaning equipment or brushes to brush the surface to be sprayed on the workpiece to promote the chemical treatment of oil stains. reaction. The higher the temperature of the degreasing bath, the faster the degreasing speed and the more thorough the degreasing. The temperature will change the physical properties of the grease. As the temperature of the degreasing bath increases, the viscosity decreases accordingly, which is convenient for the formation of droplets and removal. (Closed galvanized bucket) The temperature of the degreasing bath is increased by 10 C. The chemical reaction rate can be doubled." Immerse the degreasing workpiece in a clean water bath, and use a brush to wash the residual liquid or residue. There should be no grease on the surface of the workpiece after cleaning. There should be no water droplets on the naked eye. No greasy touch:
Vyčistený obrobok by sa mal podľa požiadaviek procesu ihneď ponoriť do fosfátovacej nádrže na povrchové fosfátovanie. Ak nie je možné vykonať fosfátovanie povrchu ihneď, povrch obrobku by sa mal ihneď vysušiť. Alebo ho osušte čistou handričkou, aby ste predišli hrdzaveniu. Doba zdržania nesmie presiahnuť 2 hodiny a nesmie byť vystavená vode. navyše. Dbajte na včasné pridanie odmasťovača do odmasťovacej nádrže alebo výmenu roztoku v odmasťovacej nádrži, aby sa zabezpečil odmasťovací účinok.
