SU31247A1 - A method of manufacturing building boards, boards, etc. products - Google Patents

Description

The author's certificate No. 30607 describes a method for the manufacture of building plates, boards, etc., of products made of wood shavings, straw, reeds, peat, etc. of organic fibrous materials that are sprayed with lime-silica mixture in order to best use after pressing, its properties are subjected to steaming in shields or trellised forms, under increased pressure, after which the material is removed and dried in the usual way.

The proposed method of performing the described method of steaming the pressed products is performed: not under elevated, but under normal pressure, of hot or superheated steam, without removing them from solid or lattice shields or molds.

The manufacture of building plates, boards, boards, etc. of the products according to the proposed method is made from wood shavings, sawdust, reed, peat fibers, co301.

crowbars, stalks, bread and other plants, which, after proper grinding, are mixed with caustic lime and silica, in the form of a diatom, tripoli, infusorial earth, slag ash or sand. The resulting mass, with the addition of water, is molded under low pressure in solid or lattice shields or forms, after which it is steamed in hot or superheated steam under normal pressure in the same forms or shields. To accelerate the hardening process, sodium chloride, soda or sulphates are used as catalysts. After that, the materials, already without forms and shields, are subjected to conventional air drying or in gases containing carbon dioxide, and in the case of the use of lattice shields, they are not exempt from them.

In order to increase the strength of the material during fs, metal, wood or reed reinforcement are introduced into the mass, and to reduce the water holding capacity,

as additives, resinous substances and bitumen and antiseptics of organic or mineral origin.

Present invention.

Acceptance of the method for manufacturing building plates, boards, etc. of products from organic fibrous materials with lime-silica bond, described in the author's certificate No. 30607, dated 1 by the fact that the steaming of pressed products cannot be removed from solid or lattice boards forms are not produced under elevated pressure, but under normal pressure of an acute or superheated steam.