| 摘要 |
The invention provides a pre-coating aluminum plate for forming, which has excellent forming performance, good heat radiation and brightness and has a white or metal-like appearance. The pre-coating Aluminum plate (1) for forming comprises a first coating film (3) formed on one side surface of the aluminum plate (2) and a second coating film (6) formed on the other side surface of the aluminum plate (2). The first coating film (3) comprises a cross-linking polyester resin 4 formed by performing cross-linking reaction on polyester resin with a temperature ranging from 25 to 100 DEG by means of melamine system curing agents or isocyanate system curing agents, white pigment 5 or metal pigment 5, or additive A 5. The arithmetic average roughness Ra of the first coating film ranges from 0.1 (mu)m to 5 (mu)m. L * value is above 85. The integration radiation ratio of infrared rays with a wavelength ranging from 3 (mu)m to 30 (mu)m is above 0.6 when the temperature is below 25 DEG. The gelatin rate is above 50 percent. The second coating film (6) comprises a cross-linking polyester resin 7 formed by performing cross-linking reaction on polyester resin with a temperature ranging from 0 to 80 DEG by means of melamine system curing agents or isocyanate system curing agents, and additive 8 or additive B 8. The integration radiation ratio of infrared rays with a wavelength ranging from 3 (mu)m to 30 (mu)m is above 0.6 when the temperature is below 25 DEG. The gelatin rate is above 50 percent. |
