DISINTEGRABLE MATERIAL, HOLDING TABLE, INCINERATION METHOD, MOLD FOR LOST WAX CASTING, AND METHOD OF DISINTEGRATING MOLD

摘要

A disintegrable material which has a given strength and shape when heated to a target temperature and which becomes disintegrable after the subsequent lapse of a given time period. The disintegrable material is characterized by comprising a base made of a hydrate of a hydraulic material and unexpanded vermiculite particles dispersed in the base. The disintegrable material preferably is one in which the hydraulic material comprises at least one of cements and gypsum and the unexpanded vermiculite particles are contained in an amount of 0.5-15 wt.%. Desirably, the disintegrable material contains Shirasu balloons in an amount of 0.5-20 wt.%. It is preferable that the surface of the base should have a coating film constituted of a hydrate of a hydraulic material and a silica powder.