失蜡法是一项古老的铸造工艺，尤其适用于铜雕塑产品的制作，铸造的技术原理起源于焚失法，焚失法最早见于商代中晚期，随着失蜡法应用的增多而逐渐的消失。

  “失蜡法”又名“熔模法”，其工艺在铸铜雕塑的铸造上首先是用蜡制作所要铸成的蜡模，然后在蜡模的外表涂上湿泥浆干后成为泥模。制泥模时也留好浇注口，涂上耐火材料使之硬化，阴干后加热使蜡熔化流出，再入窑焙烧，就形成了有空腔的铸型，把铸型埋入沙子中，从浇注口灌入熔化的青铜液，待青铜液冷却凝固后便可将所铸铜器取出。

  失蜡法铸造的优点是在制作铸模时不需要开模，外模也不用分成数块，空腔厚薄均匀，壁厚最小可以3毫米，铸件的形状很少受到工艺限制，表面有一定的光洁度，它的最大特点是用低熔点材料做“模”，简化了制模的工艺，可以制作任何器形，在铸造史上具有里程碑的意义，是我国三大铸造技术之一。所铸的青铜雕塑产品上没有范痕，也没有垫片的痕迹，耳、足、鉴等处都没有残存的范土，这些都是与陶范法铸造青铜器明显不同。

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