用粉煤灰、石灰、石膏等原材料配制而成的硅酸盐制品最好采用压蒸养护工艺。按压蒸前所用方法的不同,可分排气法、真空法、早期快速升压法等压蒸工艺。排气法、真空法的目的是尽量提高压蒸釜内蒸汽的纯度,充分利用纯饱和蒸汽传热效果好的优点来提高制品强 The silicate products formulated from raw materials such as fly ash, lime, and gypsum are preferably pressurized and cured. Different methods used before pressing the steam, can be divided into the exhaust method, vacuum method, early rapid pressure boosting and other pressure steaming process. The purpose of the exhaust method and the vacuum method is to increase the purity of the steam in the autoclave as much as possible, and to fully utilize the advantages of the pure saturated vapor heat transfer effect to improve the strength of the product.