论文部分内容阅读
一、前言可塑料是一种以耐火骨料为主,加入适当的粘土或化学胶结剂,以及掺入少量外加剂,加水经过混合而制成的膏泥状物料,在规定的贮存期内具有良好的可塑性。目前,较为常见的是在烘烤过程中烧成并硬化的热硬性可塑料。其成份为:骨料55～70％(粘土质熟料或高铝质熟料);粉料为25～35％;结合剂为5～15％(软质粘土),保存期为6个月。以高铝质可塑料为例,其主要理化指标为:Al_2O_3含量>60％;耐火度>1690℃;最高使用温度为1400℃;2kgf/cm~2荷重变形4％温度>1320℃;烧
First, the preface Plastic is a kind of refractory aggregate-based, by adding appropriate clay or chemical binder, and mixed with a small amount of admixture, add water after mixing plaster-like material, the provisions of the storage period has Good plasticity. Currently, the more common are the thermosetting plastics that are fired and hardened during the baking process. The composition is as follows: 55-70% of aggregate (clay clinker or high aluminum clinker), 25-35% of powder, 5-15% of binder (soft clay), and the storage period is 6 months . Take high aluminum plastic as an example, its main physical and chemical indexes are as follows: Al 2 O 3 content> 60%; refractoriness> 1690 ℃; maximum service temperature is 1400 ℃; 2kgf / cm ~ 2 load deformation 4% temperature> 1320 ℃;