CS242366B1 - Heating binder - Google Patents

Abstract

The invention relates to a heating binder for heating building boards produced on the basis of a mixture of granular and fibrous inorganic materials and binders. It contains 5 to 55% by weight of liquid potassium silicate with a density of 1.3820 g/cm5 to 1.4090 g/cm?, 30 to 35% by weight of mineral red for cement based on iron oxide, 2 to 3% by weight of silicon dioxide and 6 to 40% by weight of graphite.

Description

(54)

WIDE VLADIMIR ing.

lokajova jařmila;

LANGER RUDOLF ing., BRNO

Heating binder

The present invention relates to a heating binder for heating building boards produced on the basis of a mixture of granular and fibrous inorganic materials and binders. It contains 5 to 55% by weight of liquid potassium silicate with a density of 1.3820 g / cm5 to 1.4090 g / cm,, 30 to 35% by weight of mineral red in ferric oxide cement, 2 to 3% by weight of silica and 6 and up to 40% by weight of graphite.

242 366

242 366

The invention solves a heating refractory binder for heating and joining building boards, manufactured on the basis of a mixture of granular and fibrous inorganic materials and binders.

The hitherto known heating of building boards consists in the placement of heating cables, heated Teflon foils and the like. In these methods, it is necessary to maintain the distribution of the heating cables, the heated Teflon foils and the like on the surface in terms of large-area heating. The disadvantage is also the high share of live work, the use of import materials and the need to join the plates mechanically using screws, rivets and the like.

The aforementioned drawbacks are eliminated by a heating binder intended for heating and joining building boards produced on the basis of a mixture of granular and fibrous inorganic materials and binders according to the invention. (b) up to 1.4090 g / ^m < 30-55% by weight of mineral red db cement based on ferric oxide, 2-5% by weight of silica and 6-40% by weight of graphite.

The heating binder according to the invention achieves good heating properties, easy handling, uniform large area heating and joining of building boards based on a mixture of grain and fibrous inorganic materials and binders, with a limited number of mechanical joints having only a locking function.

The invention and its effects are described in more detail in the description of an exemplary embodiment thereof.

242 366

The heating binder according to the invention is intended for heating building boards produced on the basis of a mixture of granular and fibrous inorganic materials and binders. Does it contain 50 to 55% by weight of liquid potassium silicate with a density of 1.5820 g / s? up to 1.4090 g / n \ 50 to 55 weight% mineral red in ferric oxide cement, 2 to 5 weight% silica and 6 to 40 weight% graphite ·

The binder according to the invention allows heating and joining of old-age boards produced on the basis of a mixture of granular and fibrous inorganic materials and binders. The binder consists of a mixture of alkaline silicate 8 with graphite and minerals, which cures to a solid layer with good bonding properties, adequate electrical conductivity and resistance to elevated temperatures due to gradual drying. binder current and hence to heat the binder layer ·

Example

To verify vyhřlvacího inventive binder compositions have been used from the plates Ezalitu C vyhřlvacího refractory binders ▼ · composition of 55 wt% liquid potassium silicate with a density of 1.4090 g and ¹ ^, 42 ° Bé 52% by weight mineral čorvoně cement-based ferric oxide 2 wt.% Of silica and 15 wt. % graphite. After the 220 V AC current was applied to the binder, the binder layer and hence the Ezalit C plates were heated. plates of Ezalit C to> 160 ° C. The measured values show good properties for large-area heating, good binder strength, and by varying the weight% of graphite and supply voltage, the maximum binder heating can be varied to cover a wide range of applications.

Claims (1)

OBJECT IN YN AND IREZ 242 366 Heating binder for heating and bonding building boards based on a mixture of granular and fibrous inorganic materials and binders, characterized in that it contains 50 to 55% by weight of liquid potassium silicate having a density of 1.5820 g / cm @ -1 to 1.4090 gyoma and 50 to 55% by weight mineral black in cement based on ferric oxide, 2 to 5% by weight of silica and 6 to 40% by weight of graphite ·