89其它技术要求的注写.ppt

本 小 节 结 束 * * Drawing of a pump cover 泵盖零件图 请点击鼠标左键显示后面内容 1. Marking part materials 零件的材料标注 Marking Other Technical Requirements 其它技术要求的注写 Part materials vary in accordance with various part functions. Therefore, in the frame of “material mark” of the drawing title, it is required to mark the item number of part materials. 零件的作用不同,所使用的材料也各不相同。因此,必须在零件图标题栏的“材料标记”栏中,注明该零件所选用的材料牌号。 牌号为HT150 的灰铸铁 请点击鼠标左键显示后面内容 2. Marking heat treatment and surface treatment 热处理和表面处理标注 Marking other technical requirements 其它技术要求的注写 Heat treatment is a method of altering metal characteristics. When a part is required to be heat-treated, one can briefly describe it in the technical requirement. 热处理是用来改变金属性能的一种方法。当零件全部需要进行热处理时,可在技术要求中用文字简要说明。 1.调质处理达到洛氏 硬度26～31HRC； 2.去除毛刺、锐边。 Pump shaft drawing 泵轴零件图 牌号为45的优 质碳素结构钢 表面淬火达到洛氏硬度56～62HRC。 请点击鼠标左键显示后面内容 2. Marking heat treatment and surface treatment 热处理和表面处理标注 Marking other technical requirements 其它技术要求的注写 When partial heat treatment is required, one can specify its range by drawing in a thick dashed dotted line. 当需要局部热处理时,可用粗点画线画出其范围,并标注相应的尺寸及说明。 该局部需要热处理 请点击鼠标左键显示后面内容 2. Marking heat treatment and surface treatment 热处理和表面处理标注 Marking other technical requirements 其它技术要求的注写 内圆柱面不需要镀铬 Surface treatments mainly include plating, painting, chemical coating and so on. In general, one can briefly describe them in the technical requirement. For surfaces that do not require coating, one can mark it by “ ”. 表面处理主要指电镀、涂漆、 化学覆盖等，一般可在技术要求中用文字简要说明。对不需要镀涂的表面，可用符号“ ”表示。 Drawing of a handwheel 手轮零件图 请点击鼠标左键显示后面内容 3. Machining and inspection requirements and other special requirements or remarks 加工及检测要求和其他特殊要求或说明 Marking other technical requirements 其它技术要求的注写 For that cannot be specified by symbol, or that are required to be represented uniformly on the drawing, one can be addr