Figure 4-15 electrophoretic coating
1 – aluminum (conductive layer) – Resin ion – Advertising Flags For Businesses aluminum non-conductive layer (oxide) – electrophoresis solution
The electrophoretic paint is generally used with a press of acrylic water-soluble coatings (anodic electrophoresis coating material).
Electrophoretic coating process conditions are as follows:
Anode: the coating of aluminum Advertising Flags For Businesses
Electrophoresis solution: water-soluble acrylic paint, solid composition for 5 to 20% (percentage of weight and volume) of water (or distilled water) solution
Voltage: 100 ~ 120V (by l)
Temperature: 20 ~ 25 ° C
pH: 7.5 to 8.5
Film thickness: 6 ~ 20μm
Electrophoretic coating, electrophoresis liquid solids content, coating types, water purity, temperature, pH value, voltage, time to be strict control of these conditions on the coating thickness, fineness, Advertising Flags For Businesses uniformity, gloss, adhesion, etc. has a significant impact.
h. Drying. Electrophoretic film adsorbed on the surface of the aluminum is very solid, high-temperature heating and drying, general electric or infrared drying temperature of 170 ~
i. Shape. Molding and the products of the size and shape of the design specifications.
③ screen punch of color aluminum plate instance. Figure 4-16 shows the screen punch of color aluminum plate products, its edge aluminum qualities of brushed surface, above the red Braille butter yellow hollow, the following is a milky yellow concave word brilliant blue convex manner. Its machining process is as follows: Advertising Flags For Businesses
a. Aluminum wire drawing. Enhance the decorative effect of aluminum surface, showing the four sides of aluminum qualities of drawing lines.
(b) anodic oxidation. The formation of the micropores of the color absorption.
(c) Coloring silk screen printed material. The formation of the pattern of coloring text.
a) printed on the red pigment. Showing red Braille.
b) printed on blue pigment. Showing blue convex manner. Advertising Flags For Businesses
(d) Closed oxide layer porous. Reinforcement coloring pattern fastness, pollution prevention, and the formation of a non-conductive layer.
e. The silk screen to protect the printed material. To protect the protruding part (red Braille, the brilliant blue bay, the aluminum qualities of all four sides).
Figure 4-16 Screen punch and color signs Advertising Flags For Businesses
1 – aluminum qualities of drawing 2 – Red Braille 3 – butter yellow hollow. 4 – blue convex manner. 5 – butter yellow concave word