一般回转体和平板形铸件单件小批生产时,多用车板和刮板造型.如众所知,这种方法同实样木模造型相比,虽然造型工时有所增加,但可大大节约制作木模工时和材料.因此,对单件生产来说,是一种比较经济的方法.但是,在一次性的小批生产、铸件外廓尺寸又较大或做实样木模较麻烦的情况下,用上述方法造型,就会使造型生产率降低,铸件 General rotary body and flat castings single piece production of small, multi-car plate and scraper modeling.As is known to all, this method with the actual wood mold shape, although the modeling work has increased, but can greatly save Therefore, it is a more economical method for single piece production.However, in a one-time small batch production, it is more troublesome to make the castings larger in size or to make a real woodworking mold Case, using the above method modeling, it will reduce the molding productivity, casting