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在鑄造生產中,除大量和大批生產外,小批和單件生產还佔有很大的比重。按照生產数量的不同,造型方法也就不一样。很明顯,不論机器造型或是手工造型,如果能使用型板來造型,它能顯著地提高劳动生產率,保証砂型和鑄件的質量。可是型板通常总是将一个或数个模型螺釘固定在模板上,或者在鑄造时就将模型和模板鑄成整体,并且制造型板先要做型板的木模,進行澆鑄型板毛坯和机械加工,因而制造型板的周期長,成本高,一般只限于大量或大批生產时才采用。
In casting production, in addition to mass and mass production, small batches and single-piece production also account for a large proportion. According to the production of different quantities, modeling methods are not the same. Obviously, regardless of the machine or hand-made shape, if it can be used to shape the template, it can significantly improve labor productivity and ensure the quality of sand and castings. However, the stencil always fixes one or several model screws to the stencil, or the model and the stencil are cast as a whole when casting, and the stencil is first made into a stencil stencil for casting the stencil blank and Machining, and thus the long cycle of manufacturing templates, high cost, generally only be used when large or large quantities of production.