黑色 2.9% 差
Baosteel Co., Ltd. is a wholly-owned subsidiary of Baosteel Group. In 1989, Baosteel produced rolled color steel plates. Over 20 years, Baosteel has produced more than 6 million tons of color coated plates, which are widely used in key industries and
projects at home and abroad. In order to better track and understand the use of Baosteel's color coated plates, in 2011, we inspected nearly 100 projects that had the conditions to return to visit. According to the effect of field shooting, the current
use of these projects is very good, which has been affirmed by the majority of users.
Coating structure type
2 / 1: twice for upper surface, once for lower surface and twice for baking.
2 / 1m: coating the upper and lower surfaces twice, baking once.
2 / 2: coating the upper and lower surfaces twice, baking twice.
V Application of different coating structures:
2 / 1: the single-layer back paint has poor corrosion resistance and scratch resistance, but has good adhesion, which is mainly used in sandwich panel;
2 / 1m: the back paint has good corrosion resistance, scratch resistance and processing formability, and has good adhesion. It is suitable for single-layer profiled board and sandwich board.
2 / 2: the double-layer back paint has good corrosion resistance, scratch resistance and processing formability, most of which are used for single-layer profiled plate, but its poor adhesion is not suitable for sandwich plate.
Choice of coating color
The choice of color is mainly to consider the matching with the surrounding environment and the owner's hobbies. However, from the perspective of using technology, there is a large choice of light color paint. Inorganic paint (such as titanium dioxide) with superior durability can be selected. Moreover, the thermal reflection ability of the paint is strong (the number of reflection system is twice that of dark paint). In summer, the temperature of the coating itself is relatively low, which has a long life of the coating Prolongation is beneficial. In addition, even if the coating is discolored or powdered, the contrast between the light color coating and the original color is small, and the effect on the appearance is not significant. However, most of the dark colors (especially the more bright colors) adopt organic colors, which are easy to fade when exposed to ultraviolet light, and change color in a short period of 3 months.
The results show that the temperature of white surface is 10 ℃ lower than that of blue surface and 19 ℃ lower than that of black surface at noon in summer. The reflection ability of different colors to sunlight is different. The following table lists the reflection capabilities of different colors
Color reflectivity reflection effect
White 84% good
Milk white 70.4% is better
Light red 69.4% is better
Beige 64.3% is better
Light green 54.1% is better
Light blue 45.5% medium
Brown 23.6% poor
Black 2.9% poor