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单件生产的回转体铸件可用刮板造型、造芯,木模较为简单。非回转体的铸件制作木模费工费料。我们试验了一种不用木模的纸样造型法,经过多次对圆盘、圆筒、支架、箱体等类型铸件试用,均收到较好效果。现以粉碎机机座铸件为例,将纸样造型、造芯方法介绍于后。一、作工艺图:分析铸件的结构特点,选择分型面和浇注位置,确定加工余量和收缩量,作铸件工艺图(图1)。二、作纸样板:按照工艺图分型面的形状,用缩尺作样板。样板的件数根据铸件的复杂程度来定。粉碎机机座共制作5组样板,共
Rotary castings produced by a single piece can be used scraper modeling, core making, wood mold is relatively simple. Non-rotating body cast woodworking fee production fee. We experimented with a pattern-forming method that does not use wooden molds. After many trials on discs, cylinders, brackets, boxes and other types of castings, we all received good results. Now shredder machine castings, for example, the paper style, core methods introduced in the post. First, the process for the map: Analysis of the structural features of casting, select the parting surface and pouring position, determine the machining allowance and shrinkage, casting process for the map (Figure 1). Second, for the paper model: According to the shape of the process map sub-surface shape, with scale for the model. The number of samples according to the complexity of the casting to be. Grinder a total of five production base model, a total of