To provide a manufacturing method of a calcium silicate plate, hardly causing a crack on an end face as a peripheral portion of the calcium silicate plate and suppressing increase in a manufacturing cost.
The manufacturing method of the calcium silicate plate comprises steps of: preparing a raw material slurry containing a calcareous raw material, a siliceous raw material and a fiber material; forming an uncured plate U with a thickness of 5 to 100 mm by forming the raw material slurry into a plate shape by using a forming apparatus; stacking the uncured plate U to form a unit 101 with a thickness of 30 to 200 mm, and further stacking the unit 101 while interposing water vapor introducing plates 102 between the units 101 to form a block 10 in an autoclave apparatus; and carrying out an autoclave curing process of the block 10 to harden it in the autoclave apparatus. Here, a thickness of a space part of the water vapor introducing plate 101 satisfies a relation of A>20-(10/35)×B, where A denotes the thickness of the space part (mm), B denotes an ambient temperature (°C) at the installation location of the forming apparatus.
NIHEI TAKAHIRO
OSAWA MITSUHARU
JPH06271369A | 1994-09-27 | |||
JPS6342135U | 1988-03-19 | |||
JPH0390904U | 1991-09-17 | |||
JP2000185982A | 2000-07-04 | |||
JP2006062102A | 2006-03-09 |
Hisako Ishido