6.标牌铝标牌大致分为以下三种。 (1) 印刷标牌:容易多色印刷,可以大批量生产。虽然耐用年限比较短,但价格便宜。可以在家庭电器、音响机器等方面使用。 (2) 阳极氧化标牌:表面坚固,具有耐磨性、抗腐蚀性,使用寿命长,但价格高。在光学器械、计量仪器等方面使用。 (3) 冲压标牌:因为采用冲压加工,有立体感,适合于大批量生产。在汽车、自行车、缝纫机等方面使用。关于标牌用铝的材质及表面情况如表7所 6. Signs Aluminum signs are broadly divided into the following three. (1) printing signs: easy multicolor printing, mass production. Although the durability of relatively short period, but the price is cheap. Can be used in home appliances, audio machines and so on. (2) anodizing signs: solid surface, with abrasion resistance, corrosion resistance, long service life, but the price is high. Used in optical instruments, measuring instruments and so on. (3) stamping signs: because of stamping, stereoscopic, suitable for mass production. Used in cars, bicycles, sewing machines, etc. About the plate with aluminum material and the surface conditions shown in Table 7