DE7127036U - Insulating plate - Google Patents

Description

The innovation concerns an insulating panel that incombustible and with high flexural strength has good thermal and visual insulation properties.

PGr insulation of Heidluftkanal, Trocireeru, ovens «as well as in general on the fire protection sector s. B. for fire-resistant ceilings and partition walls are in large sizes incombustible and equilateral heat and sound insulation panels are required.

Various insulation panels have already been proposed, for example one in particular in the

P. Asbestos fibers
inorganic laugh Gm 735 6th f • · · * · · « with
bonded • β · · · t
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Calcium silicate bond or a

Mineral fiber board for dilution Is Sschbss, j These materials do not have all the properties desired in the fire hat sector at the same time on. Up to now no record has been made known which at the same time have good heat and sound insulation properties together with the lowest possible weight and has good flexural rigidity.

An insulating plate is proposed, made of a lightweight, hollow insulating. incombustible plate core and a double-sided, also incombustible sheathing made of stiffening active material.

It is practical if the plate core consists of bound or pressed mineral fibers or expanded minerals, z. B. expanded clay, expanded glass, vermiculite or powdered pressed materials, such as a. B. Calcium sulfate, silica, magnesium carbonate or the like.

Inorganic substances or mixtures are particularly suitable as binders, such as water glass, Bentonlt, suitable Zeeente or the like. The proportion of the The binder can be determined by means of suitable preliminary tests and adapted to the intended use.

The stiffening coating attached to both sides of the plate core consists of mineral and / or Asbestos fibers that are old as fleece, woven fabric or long-cut staple fibers help a preventively inorganic Glue on aind. Suitable as an adhesive

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in particular portland, sorel and alumina cement, calcium hydroxide, alkali silicates, colloidal silicic acid, aluminum hydroxide, gypsum, gypsum, base. It may be advantageous to add a filler such as ground Al ₂ O ,, talc or asbestos flour.

Pig. 1 shows an example of the insulating plate according to the invention. The plate core 1 is on both sides of specify the stiffening uramallings 2.

The examples below are based on the manufacture directed to various types of panels according to the innovation.

example 1

Basalt = ;, Schlecken = or rock wool with a Paserduro knife of 5-10 years? - Chopped 20 mm. Me Faaerm * Pool is then filtered on a vibrating sieve or Rundsiebfilter and the moist filter cake thus obtained at temperatures of 100-500 ⁰ C dried.

The fiberboard is then covered on both sides with a glass fiber fleece or with glass fiber or asbeet fiber fabric, whereupon the fleece or fabric is coated with a mortar consisting of 1 part by weight of aabest flour and 4 parts of colloidal Al (OH) ₅ or SiO ₂ is glued to the plate surfaces. For the purpose of hardening of the adhesive, the plate is about 3-15 Hinuten in a drying oven or heated press at 50 - dried 500 ⁰ C ·

7127836-4.11.71

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Example 2

The plate is produced according to the method of Example 1, but using the Aüsetsea des fibrous pulp «© is an additional 1 - 5 Ge? * .- j6 strength (based on the Total amount) or 5-10 wt. ~ # Asbestos flour (based on the amount of fiber) added to prevent migration of the binder during drying To prevent surface of the plate.

Example 3

The core material is produced as in Examples 1 and 2, but in the case of use If bentonite is used as a binding agent, the board will dry out at temperatures higher than 500 ° C but below the melting point of the sterile fiber carried out, whereby the redispersibility of the bentonite in water and the binding of the fiberboard is prevented remains stable in water.

Example 4

Foamed silicate material In the form of block foam, spheres or broken block foam with a grain size of 1 - 15 mm (in appropriate fraction ^{components) and a bulk density of 100 - 350 kg / m 5} , are moistened with water in a concrete mixer. Zeuent is then added and the mortar obtained in this way shaken or pulped into a mold. After the binding agent has hardened, the plate is removed from the mold, glass or asbestos fiber fabric is applied to both sides and this is mixed with a mass of 4-5 parts of colloidal silica or aluminum hydroxide, mixed with 1 part of aluminum flour,

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troweled onto the Piatteo surfaces. The I

Drying takes place at room temperature or at
60 - 80 ⁰ C.

Example 5

Calcium silicate, magnesium carbonate or silica in
highly dispersed form with a bulk density of about
50 - 200 kg / a ⁵ are in a mixer with 10-40
Weight * of a rubber agent such as graphite * SiO ₂ , PeO. . Cr ₂ O, as well as ait 10-20 wt .- * of an inorganic £

Binder, such as e.g. water glass, Ca (OH) ₂ , f Bentonite or cement with a zasats of 10-30 | 9t by weight of water mixed and then in a | Eating pressed into a plate. The pellet \

is then on all sides to the examples
1 - A described way superficially reinforced.

The properties of the prepared according to Examples 1-3
Isolation plate!) Were the following:

Dimensional weight - 200 - 350 kg / m ⁵ Flexural strength - 15-45 kp / cm ² for sheet thickness

from 10 - 40 mm

Thermal conductivity - 0.61 kcal / raw h deg - at 100 ° C mean temp.

0.85 kcal / sh grad - at 300 ⁰ C mean temperature

Claims (7)

Protection claims Ga 12-7-1971 AP - I * .W / S 1. Isolation plate, characterized by a lightweight, highly insulating, incombustible Pliittenkera bit, one on both sides, also incombustible sheathing made of a reinforcing material. £ · Insulation plate according to claim 1, characterized by that the plate core consists of bound or pressed mineral fibers. 3. Insulation plate according to claim 1, characterized in that that the plate core consists of mineral fibers, which are a known inorganic binder contain. 4. Insulation plate according to claim i, characterized by gekeüüseiQimet, that the plate core consists of expanded minerals, e.g. expanded clay, expanded glass, vermiculite or the like. !>. Isolation plate naoh claim 1 - 4-t thereby characterized in that the two-sided sheathing of the Plate core made of mineral and / or scrap fibers consists of fleece, fabric © the long-lived Staple fibers are caaaehed with the help of an adhesive. 6. Isolation plate naoh claim 5, characterized in that the two-sided sheathing old using an inorganic adhesive such as Portland, Sorel or high alumina cement, calcium hydroxide, alkali silicate, colloidal silica and aluminum hydroxide, gypsum or bentonite are kaached. 7. insulating plate according to claim 1-6, characterized in that the binder of the Plattenlcerns and gfs. the stiffening coating on both sides contains a per se known putty, such as ground A ^ ₀ O ,, SiO ₀ or Aebestmehl.