| 摘要 |
<p>PURPOSE: To obtain an inorganic plate of uniform thickness by spraying a mixture of a cement-based inorganic powder, a specific reinforcing material and an alkali metal silicate on a mold plate to form a mat and pressing the mat, and heating it jetting steam. CONSTITUTION: (A) 40-70 pts.wt. of a cement inorganic powder, (B) 15-35 pts.wt. of a reinforcing material as a mixture of a bamboo reinforcing material 15-40mm long, 2-5mm wide, 10-80 aspect ratio and a wood reinforcing material 0.5-2.0mm wide, 1-20mm long, 20-30 aspect ratio at a weight ratio of 100/0-20/80 and (C) 2-15 pts.wt., per 100 pts.wt. of the cement powder (A), of an alkali metal, silicate are mixed and its moisture content is adjusted to 40-60wt.% to give a forming material. This forming material is sprayed on the mold 1 coated with a mold releasing agent to form a mat 12. The mat 12 is pressed with a movable platen 18, while steam is jetted from the nozzle pipe 26 to effect the primary curing, then aged in the moisture-containing state to effect the final setting.</p> |
