字码,一种是表示铸件成形后,产品零件的型号,另一种是表示铸件砂箱、型板的规格尺寸。为便于制作字码,我们设计了一次浇注ZL203铝铜合金的金属型字码模,其工艺过程如下:1.设计相反的凹模数字码,用A3钢材制成单一字模(见图1)。图中:a=字模长度,b=字模长度+lOmm,c=字模长度+IOmm+14mm。在字模上加工出2°的斜度。 Word, one is that after the casting molding, product parts model, and the other is that cast sand box, the size of the template. In order to facilitate the production of the code, we designed a ZL203 aluminum-copper alloy casting metal pattern, the process is as follows: 1. The opposite design of the die digital code, made of A3 steel single character (see Figure 1). In the figure: a = length of the pattern, b = length of the pattern + 10 mm, c = length of the pattern + 10 mm + 14 mm. Machined in the font 2 ° slope.