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Title:
MANUFACTURING METHOD OF CALCIUM SILICATE PLATE
Document Type and Number:
Japanese Patent JP2012176503
Kind Code:
A
Abstract:

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.


Inventors:
OSHIO YASUHIDE
NIHEI TAKAHIRO
OSAWA MITSUHARU
Application Number:
JP2011039533A
Publication Date:
September 13, 2012
Filing Date:
February 25, 2011
Export Citation:
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Assignee:
A & A MATERIAL CORP
International Classes:
B28B11/24; B28B3/02
Domestic Patent References:
JPH06271369A1994-09-27
JPS6342135U1988-03-19
JPH0390904U1991-09-17
JP2000185982A2000-07-04
JP2006062102A2006-03-09
Attorney, Agent or Firm:
Hideo Akazawa
Hisako Ishido