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近年来预制构件工厂化生产进一步发展,特别是楼板、墙板平模流水生产工艺使制品生产效率大大提高,因而是广泛采用的工艺方法。但是从一些制品的浇注和表面修整工序来看,尚多采用人工特别是表面修整工序,靠操作工人的技能和技术人员的经验,因此质量的可靠性差。而减压注浆工艺生产的制品表面可不必修整,即能得到理想的表面。即使复杂的形状也可以一次成型。
In recent years, the prefabricated component factory production has been further developed. In particular, the flow production technology for floor slabs and flat plates has greatly improved the production efficiency of the products. Therefore, it is a widely used process method. However, from the perspective of casting and surface dressing processes of some products, artificial, especially surface finishing processes are still used, and the reliability of the quality is poor due to the skills of the operating workers and the experience of the technicians. The surface of the products produced by the vacuum grouting process does not need to be trimmed, and an ideal surface can be obtained. Even complex shapes can be molded once.