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散热片面积大、形状复杂的箱形汽缸盖是空冷柴油汽车发动机最复杂和最重要的铸造零件(见图)。用组芯造型是获得铸件最为有利的方法。核方法的缺点可以由它的通用性、可生产任意形状的多种铝合金铸件以及相对短的生产周期来补偿。型内铸件的布置,要使待加工的表面处在下面。铸型是在实心金属底座——冷铁上进行组合的,底座-冷铁能保证定向结晶和使铸件很好补缩,这对得到细密的细晶粒金属
The large, complex heat sink box cylinder head is the most complex and important cast part of an air-cooled diesel car engine (see photo). With the core shape is the most advantageous method of obtaining castings. The disadvantages of the nuclear method can be compensated by its versatility, the ability to produce a wide range of aluminum alloy castings of any shape, and relatively short production cycles. Type castings arranged so that the surface to be processed in the following. The mold is a combination of solid metal base - cold iron, the base - cold iron to ensure that the directional crystallization and the casting well complement, which is fine to get the fine grain metal