DE2847508C2 - - Google Patents

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Publication number
DE2847508C2
DE2847508C2 DE2847508A DE2847508A DE2847508C2 DE 2847508 C2 DE2847508 C2 DE 2847508C2 DE 2847508 A DE2847508 A DE 2847508A DE 2847508 A DE2847508 A DE 2847508A DE 2847508 C2 DE2847508 C2 DE 2847508C2
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Germany
Prior art keywords
wool
insulating body
rock wool
glass wool
insulating
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Expired - Lifetime
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DE2847508A
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German (de)
Other versions
DE2847508A1 (en
Inventor
Wilfried 6238 Hofheim De Seitz
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Individual
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Individual
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Priority to DE19782847508 priority Critical patent/DE2847508A1/en
Priority to CH541379A priority patent/CH639927A5/en
Priority to FI791971A priority patent/FI791971A/en
Priority to GB7923274A priority patent/GB2032845B/en
Priority to IT25510/79A priority patent/IT1122990B/en
Publication of DE2847508A1 publication Critical patent/DE2847508A1/en
Application granted granted Critical
Publication of DE2847508C2 publication Critical patent/DE2847508C2/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/04—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/02—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica the layer of fibres or particles being impregnated or embedded in a plastic substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/06—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B32B2260/023—Two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/108—Rockwool fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Description

Die Erfindung betrifft einen Isolierkörper aus mit einem Kunstharzbinder behandelter Mineralwolle sowie ein Verfahren zu dessen Herstellung.The invention relates to an insulating body made of mineral wool treated with a synthetic resin binder and to a method for its production.

Vorgeformte Isolierkörper aus Mineralwolle werden für die unterschiedlichsten Anwendungen vornehmlich im Bauwesen aber auch in anderen Gebieten der Technik eingesetzt. Dabei werden solche Isolierkörper nicht nur zum Zweck der Wärmeisolierung sondern oft auch zum Zweck der Schallisolierung verwendet.Pre-shaped insulating bodies made of mineral wool are used for a wide variety of purposes Applications primarily in construction but also in other areas of technology used. Such insulators are not only for the purpose of thermal insulation but also often used for sound insulation.

Zum Herstellen vorgeformter Isolierkörper wird die Mineralwolle im allgemeinen mit einem Kunstharz behandelt, sodann unter einer gewissen Verdichtung in die vorgesehene Gestalt gebracht und in diesem Zustand einer Wärmebehandlung bei erhöhter Temperatur ausgesetzt, um den Kunstharzbinder auszuhärten und die Gestalt des Isolierkörpers dauerhaft zu fixieren.Mineral wool is generally used to produce preformed insulators treated with a synthetic resin, then with a certain compression into the brought intended shape and in this state with a heat treatment exposed to elevated temperature to harden the resin binder and Fix the shape of the insulating body permanently.

Häufig verwendete Formen sind einerseits Platten und andererseits rohrartige Hülsen, die nach dem Aushärtungsvorgang in zwei zylindrische Halbschalen geteilt werden, um sie zum Zwecke der Außenisolierung von Rohrleitungen um die Rohrleitungen herum wieder zu einem zylindrischen Mantel zusammenzufügen. Neben solchen Standardausführungen werden aber auch entsprechende Isolierkörper unterschiedlichster Gesaltgebung für Spezialzwecke eingesetzt. Als Beispiel seien Wärmeisolierkörper an der Innenseite der Gehäuse von Kühltruhen und Kochherden erwähnt.Commonly used forms are plates on the one hand and tubular ones on the other Sleeves that are divided into two cylindrical half shells after the curing process be used for the purpose of external insulation of pipelines around the Join the pipes around again to form a cylindrical jacket. In addition to such standard designs, there are also corresponding insulating bodies different layouts used for special purposes. As Examples include heat insulators on the inside of the freezer casings and cookers mentioned.

Als Mineralwollen werden zur Herstellung von Isolierkörper vornehmlich Steinwolle und Glaswolle verwendet. Diese beiden Mineralwollen besitzen eine Reihe von unterschiedlichen Eigenschaften, welche die eine oder die andere der beiden Mineralwollen für bestimmte Einsatzgebiete besonders geeignet machen. As mineral wool, mainly rock wool is used to manufacture insulating bodies and glass wool used. These two mineral wool have a number of different properties, one or the other of the two Make mineral wool particularly suitable for certain areas of application.  

Steinwolle ist temperaturbeständiger als Glaswolle und kann bis zu Temperaturen von 700°C verwendet werden, während Glaswolle bereits bei etwa 240°C sintern kann. Außerdem erfordert Glasfaser zum Erreichen einer etwa gleichen Faserbindung im Isolierkörper mehr organische Bindesubstanz als Steinwolle. Wird bei Steinwolle ein Binderanteil von etwa 1% eingesetzt, so erfordert die Glaswolle entsprechend 5-6% Kunstharzbinder. Diese beiden erwähnten Eigenschaften führen dazu, daß Isolierkörper aus Steinwolle grundsätzlich eine höhere Brandschutzeinstufung erhalten als entsprechende Isolierkörper aus Glaswolle.Rock wool is more temperature resistant than glass wool and can reach temperatures of 700 ° C can be used, while glass wool sinters at around 240 ° C can. In addition, glass fiber requires approximately the same fiber bond more organic binding substance in the insulating body than rock wool. Is at Stone wool uses a binder content of about 1%, so the glass wool requires corresponding to 5-6% synthetic resin binder. These two properties mentioned lead to the fact that insulating materials made of stone wool generally have a higher fire protection rating than corresponding insulating materials made of glass wool.

Andererseits führt Glaswolle wegen ihrer größeren Faserlänge zu Isolierkörpern höherer Gestaltfestigkeit, die darüber hinaus noch mit geringerer Dichte hergestellt werden können, daher leicht sind und pro Volumeneinheit eine geringere Masse besitzen. Das führt zu einer erheblichen Gewichtsersparnis bei den Isolierkörpern. Die wegen der Kurzfaserigkeit der Steinwolle wesentlich höhere Dichte der aus ihr hergestellten Isolierkörper und die damit verbundene größere Masse je Volumeneinheit führt bei wechselnden Temperaturen des zu isolierenden Gegenstandes selbst bei gleichem Temperaturgefälle über den Querschnitt des Isolierkörpers zu höheren Wärmeverlusten, da bei einer Temperaturerhöhung jeweils die im Verhältnis zu Glaswolle höhere Masse der Steinwolle aufgeheizt werden muß.On the other hand, glass wool leads to insulating bodies due to its longer fiber length higher structural strength, which is also manufactured with a lower density can therefore be light and are lower per unit volume Possess mass. This leads to considerable weight savings for the insulating bodies. The much higher due to the short fiber structure of the rock wool Density of the insulating body made from it and the associated larger Mass per unit volume leads to changing temperatures of the insulation Object even with the same temperature gradient across the cross section of the Insulator to higher heat losses, because with a temperature increase in each case the mass of rock wool, which is higher than that of glass wool, is heated must become.

Hinsichtlich der Schallisolation absorbiert Steinwolle bevorzugt tiefere Tonfrequenzen während sich die Glaswolle günstig auf hohe Tonfrequenzen auswirkt. Nicht unerwähnt bleiben darf die unterschiedliche Hautverträglichkeit beider Mineralwollen. Steinwollen kann in dieser Hinsicht nur mit größter Vorsicht verarbeitet und gehandhabt werden. With regard to sound insulation, rock wool preferably absorbs lower sound frequencies while the glass wool has a favorable effect on high sound frequencies. The difference in skin tolerance between the two should not go unmentioned Mineral wool. Rock wool can only be handled with great caution in this regard processed and handled.  

Je nach Verdichtungsgrad bei der Herstellung der Isolierkörper kann ein Körper aus Steinwolle eine Dichte in der Größenordnung von 100 kg je m³ und ein Körper aus Glaswolle eine Dichte von etwa 50-60 kg je m³ aufweisen.Depending on the degree of compaction in the manufacture of the insulating body, a body can from rock wool a density in the order of 100 kg per m³ and a Glass wool bodies have a density of about 50-60 kg per m³.

Je nach Einsatzzweck sind die beiden Mineralwollen bisher entweder als konkurrierende oder als sich gegenseitig ausschließende Stoffe eingesetzt und verarbeitet worden.Depending on the application, the two mineral wools have so far been either competing or used as mutually exclusive substances and been processed.

Aus dem DE-GM 19 69 838 ist ein Metallfaservlies zur Isolierung metallischer Gegenstände bekannt, welches zwei Schichten aus Mineralwolle aufweist, welche unterschiedliche Eigenschaften besitzen. Das Mineralfaservlies dient hierbei bei erdverlegten metallischen Gegenständen dazu, diese gegen Korrosion zu schützen. Aus diesem Grunde sind zwei Schichten aus Mineralwolle verwendet, welche in ihrer Auswahl und Anordnung den spezifischen physikalischen und chemischen Anforderungen genügen, insbesondere bei Feuchtigkeit einen geeigneten pH-Wert erzeugen und chemische Reaktionen unterbinden.From DE-GM 19 69 838 is a metal fiber fleece for insulation known metallic objects, which consists of two layers Mineral wool has different properties have. The mineral fiber fleece is used for buried floors metallic objects to prevent them from corrosion protect. For this reason there are two layers of mineral wool used, which in their selection and arrangement the specific physical and chemical requirements, in particular generate a suitable pH in the presence of moisture and chemical Prevent reactions.

Die DE-OS 27 48 414 beschreibt die Herstellung einer Isolationsplatte aus Mineralwolle, welche mit einer dünnen Oberflächenschicht versehen wird, welche in Form einer Vliesschicht ausgestaltet ist. Die Isolationsplatte wird zusammen mit der Vliesschicht einer Wärmebehandlung unterzogen.DE-OS 27 48 414 describes the production of a Insulation plate made of mineral wool, which with a thin Surface layer is provided, which in the form of a Fleece layer is designed. The insulation plate is put together subjected to a heat treatment with the fleece layer.

Die DE-OS 23 03 320 beschreibt ein Verfahren zur Herstellung schallabsorbierender Platten, bei welchem eine mit Lack versehene Glasfaserhaut auf die zu bedeckende Platte aufgebracht wird. Die Glasfaserhaut wird dabei mittels einer Leimzwischenlage auf die aus Mineral- bzw. Glaswolle bestehende Platte aufgeklebt und hat den Zweck, den Absorptionskoeffizienten für Geräusche zu verbessern.DE-OS 23 03 320 describes a process for the production sound-absorbing panels, in which one is provided with lacquer Glass fiber skin applied to the plate to be covered becomes. The glass fiber skin is by means of a Glue intermediate layer on the mineral or glass wool Plate glued and has the purpose of the absorption coefficient for improving noise.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Herstellen eines Isolierkörpers für eine aus zwei zylindrischen Halbschalen ausgebildete Rohrisolierung zu schaffen, welches einfach ausgestaltet und einfach und kostengünstig anwendbar ist und zu verbesserten Isoliereigenschaften bezüglich der Wärme- und Schallisolierung des Isolierkörpers führt.The invention has for its object a method for Manufacture of an insulating body for one from two cylindrical To create half-shell pipe insulation which is simply designed and simple and inexpensive is applicable and regarding improved insulation properties the heat and sound insulation of the insulating body leads.

Erfindungsgemäß wird die Aufgabe durch die Merkmalskombination des Hauptanspruchs gelöst. Der Patentanspruch 2 betrifft den verfahrensgemäß hergestellten Isolierkörper.According to the invention, the object is achieved by the combination of features of the main claim solved. Claim 2 relates the insulating body manufactured according to the method.

Die Herstellung der erfindungsgemäßen Isolierkörper findet in der Weise statt, daß die mit Kunstharzbinder behandelte Grundschicht aus Steinwolle und die mit Kunstharzbinder behandelte bzw. behandelten Deckschichten aus Glaswolle in der vorgesehenen Anordnung aufeinander gebracht, gemeinsam in die vorgesehene Form überführt und gemeinsam der Wärmebehandlung unterworfen werden. Als Kunstharzbinder wird z. B. ein Phenolharz verwendet, für dessen Aushärtung die Wärmebehandlung bei etwa 245°C stattfindet. Das angegebene Herstellungsverfahren hat den Vorteil, daß die unterschiedlichen Schichten bei der Wärmebehandlung ohne zusätzlichen Bindereinsatz unmittelbar miteinander verbunden werden können. Auch entfällt die eventuelle spätere Verwendung eines Klebers zum Kaschieren.The insulating bodies according to the invention are produced in such a way that the base layer of rock wool treated with synthetic resin binder and the with Resin binder treated or treated cover layers made of glass wool in the provided arrangement brought together, together in the intended Form transferred and jointly subjected to the heat treatment. As a synthetic resin binder z. B. uses a phenolic resin for its curing Heat treatment takes place at around 245 ° C. The specified manufacturing process has the advantage that the different layers in the heat treatment  directly connected to each other without additional binder insert can be. The possible later use of an adhesive is also eliminated for concealing.

Erfindungsgemäße Isolierschalen zum Isolieren von Rohrleitungen bestehen aus einer nach innen weisenden Grundschicht aus Steinwolle und aus einer die äußere Mantelfläche bildenden Deckschicht aus Glaswolle. Die Herstellung dieser doppelschichtigen Isolierschalen erfolgt derart, daß zuerst Lagen mit Kunstharz behandelter Steinwolle auf einen Dorn gewickelt, darüber dann entsprechende Lagen aus Glaswolle gewickelt, diese Anordnung der Wärmebehandlung unterworfen und anschließend der Dorn aus dem fertigen Isolierkörper entfernt wird, der dann noch zu zwei Halbschalen aufgetrennt wird.Insulating shells according to the invention for insulating pipelines consist of an inward facing rock wool base layer and an outer layer Surface layer of glass wool that forms the outer surface. The manufacture of this double layer Insulating shells are made in such a way that first layers are treated with synthetic resin Rock wool wrapped on a mandrel, then appropriate layers above wound from glass wool, this arrangement is subjected to heat treatment and then the mandrel is removed from the finished insulating body then split into two half shells.

Der beschriebene Aufbau der Isolierschalen ist für die Wärmeisolierung von heißen Rohrleitungen besonders gut geeignet. Die innenliegende Grundschicht aus der höher wärmebeständigen Steinwolle liegt unmittelbar an der Oberfläche der heißen Rohrleitung an. Entsprechend dem erwarteten Temperaturgefälle über die Dicke des Isolierkörpers wird von einem bestimmten Punkt genügend niedrige Temperaturen die Steinwolle durch Glaswolle ersetzt. Dadurch wird das gesamte Wärmeaufnahmevermögen des Isolierkörpers und somit dessen Verlustwärme geringer. Ferner erhöht die Außenschicht aus Glaswolle die Formfestigkeit und erleichtert wesentlich die Handhabung des Isolierkörpers, da beim Anbringen der Schalen die Steinwollschicht nicht berührt zu werden braucht.The structure of the insulating shells described is for the thermal insulation of hot pipes particularly well suited. The inner base layer from the more heat-resistant rock wool lies directly on the surface the hot pipeline. According to the expected temperature gradient above the thickness of the insulating body becomes sufficiently low from a certain point Temperatures the rock wool is replaced by glass wool. This will make it total heat absorption capacity of the insulating body and thus its heat loss less. The outer layer of glass wool also increases the dimensional stability and significantly facilitates the handling of the insulating body, since the Attaching the shells doesn't need to touch the rock wool layer.

Die erfindungsgemäßen Isolierkörper können beispielsweise überall dort eingesetzt werden, wo die zu isolierenden Temperaturen sich in bestimmten Grenzen halten. Verwendet man solche Körper zur Isolierung von Kühlgeräten oder dergleichen, so bringt die innere Grundschicht aus Steinwolle den Vorteil mit sich, daß auch tiefe Töne des Geräusches der Antriebsaggregate besser geschluckt werden.The insulating body according to the invention can, for example, anywhere there  be used where the temperatures to be isolated are within certain limits hold. If such bodies are used for the insulation of cooling devices or the inner base layer of rock wool has the advantage themselves that even low tones of the noise of the drive units are better swallowed will.

Im folgenden wird ein Ausführungsbeispiel des erfindungsgemäßen Isolierkörpers anhand der Zeichnung beschrieben. Dabei zeigtThe following is an embodiment of the invention Insulating body described with reference to the drawing. Here shows

Fig. 1 eine teilweise geschnittene Isolierschale für die Rohrleitungsisolierung. Fig. 1 is a partially sectioned insulating shell for the pipe insulation.

Die Fig. 1 zeigt einen zylindrischen, rohrartigen Isolierkörper für die Isolierung von Rohrleitungen. Der Körper ist dort entsprechend dem Herstellungsverfahren noch als geschlossenes, zylindrisches Rohr dargestellt, für das Anbringen an Rohrleitungen wird er jedoch vorher in einer Mittelebene aufgetrennt. Der rohrschalenartige Isolierkörper 1 besteht aus einer innenliegenden Grundschicht 2 aus Steinwolle und einer außenliegenden Deckschicht 3 aus Glaswolle. Das Verhältnis der Dicke der beiden Schichten hängt im wesentlichen von dem zu erwartenden Temperaturgefälle ab, welchem der Isolierkörper ausgesetzt sein wird. Fig. 1 shows a cylindrical, tubular insulating body for the insulation of pipes. According to the manufacturing process, the body is still shown as a closed, cylindrical tube, but for attachment to pipelines, it is previously separated in a central plane. The tubular shell-like insulating body 1 consists of an inner base layer 2 made of rock wool and an outer cover layer 3 made of glass wool. The ratio of the thickness of the two layers essentially depends on the expected temperature gradient to which the insulating body will be exposed.

Claims (2)

1. Verfahren zum Herstellen eines Isolierkörpers für eine aus zwei zylindrischen Halbschalen ausgebildete Rohrisolierung, welche aus einer zum Zylinderinneren weisenden Grundschicht (2) aus Steinwolle und aus einer die äußere Mantelfläche bildenden Deckschicht (3) aus Glaswolle besteht, bei dem die Steinwolle und die Glaswolle mit einem Kunstharzbinder behandelt werden, nachfolgend die Grundschicht (2) aus Steinwolle auf einen Dorn aufgewickelt, die Deckschicht (3) aus Glaswolle darübergewickelt, diese Anordnung zum Fixieren der Formgebung durch Aushärten des Kunstharzbinders einer Wärmebehandlung unterworfen, anschließend der Dorn aus dem Isolierkörper entfernt und der Isolierkörper zu zwei Halbschalen aufgetrennt wird.1. A method for producing an insulating body for a pipe insulation formed from two cylindrical half-shells, which consists of a base layer ( 2 ) made of rock wool facing the cylinder interior and a cover layer ( 3 ) made of glass wool which forms the outer lateral surface, in which the rock wool and the glass wool are treated with a synthetic resin binder, then the base layer ( 2 ) of rock wool is wound on a mandrel, the top layer ( 3 ) of glass wool is wrapped over it, this arrangement for fixing the shape is subjected to heat treatment by curing the synthetic resin binder, then the mandrel is removed from the insulating body and the insulating body is separated into two half-shells. 2. Isolierkörper hergestellt nach dem Verfahren nach Anspruch 1.2. Insulating body produced by the method according to claim 1.
DE19782847508 1978-11-02 1978-11-02 MINERAL WOOL INSULATION Granted DE2847508A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19782847508 DE2847508A1 (en) 1978-11-02 1978-11-02 MINERAL WOOL INSULATION
CH541379A CH639927A5 (en) 1978-11-02 1979-06-11 MINERAL WOOL INSULATION.
FI791971A FI791971A (en) 1978-11-02 1979-06-20 ISOLERKROPP AV MINERALULL
GB7923274A GB2032845B (en) 1978-11-02 1979-07-04 Mineral wool insulating material
IT25510/79A IT1122990B (en) 1978-11-02 1979-09-05 DIFFERENT LAYER MINERAL WOOL INSULATING BODY AND PROCEDURE FOR OBTAINING IT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782847508 DE2847508A1 (en) 1978-11-02 1978-11-02 MINERAL WOOL INSULATION

Publications (2)

Publication Number Publication Date
DE2847508A1 DE2847508A1 (en) 1980-05-14
DE2847508C2 true DE2847508C2 (en) 1992-02-06

Family

ID=6053670

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782847508 Granted DE2847508A1 (en) 1978-11-02 1978-11-02 MINERAL WOOL INSULATION

Country Status (5)

Country Link
CH (1) CH639927A5 (en)
DE (1) DE2847508A1 (en)
FI (1) FI791971A (en)
GB (1) GB2032845B (en)
IT (1) IT1122990B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2920895C3 (en) * 1979-05-23 1994-07-14 Wilfried Seitz Pipe insulating shell made of mineral wool and process for its production
US4435468A (en) * 1982-02-12 1984-03-06 Kennecott Corp. Seamless ceramic fiber composite articles and method and apparatus for their production
DE3229393A1 (en) * 1982-08-06 1984-02-09 Coprix-Hochbauteile Wiehofsky & Söhne GmbH, 8913 Schondorf Insulating board having ventilation layers
FR2572332B1 (en) * 1984-10-25 1986-12-26 Prod Cellulosiques Isolants INSULATED PART OF VARIOUS FORMS, FORMED BY A STACK OF HIGH-TEMPERATURE-RESISTANT FIBER TABLECLOTS AND MANUFACTURING METHOD
DE19730153A1 (en) † 1997-07-14 1999-01-21 Missel Gmbh & Co E Insulation sleeve for metallic and other non-combustible pipes and ducts
EP1023993A3 (en) * 1999-01-26 2001-02-28 Wilfried Seitz Insulation compound mat
FR2796443A1 (en) * 1999-07-12 2001-01-19 Saint Gobain Isover FIRE-RESISTANT INSULATING MATERIAL, SUITABLE FOR AERONAUTICAL INSULATION, METHOD AND DEVICE FOR MANUFACTURING SAME
DE10136269A1 (en) * 2001-07-25 2003-02-13 Missel Gmbh & Co E Multi-layer insulation material
EP1423321B1 (en) 2001-08-29 2006-03-22 tesa AG Machine-detectable adhesive tape
GB2428627B (en) * 2002-12-12 2007-08-01 Kingspan Holdings Insulating phenolic foam sections
DE10317937A1 (en) * 2003-04-17 2004-11-04 Saint-Gobain Isover G+H Ag Process for the production of pipe shells made of mineral wool and such pipe shells
DE102008044871B4 (en) 2008-08-29 2017-03-30 Alexander Hagmann Vacuum casting plant, mixing head for a vacuum casting plant and method for this
DE102013019682A1 (en) * 2013-11-22 2015-05-28 Saint-Gobain Isover G+H Ag Insulating element for heat and / or sound insulation of pipes, especially chimney pipes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1969838U (en) * 1967-08-16 1967-10-05 Gruenzweig & Hartmann A G MINERAL FIBER FLEECE FOR THE INSULATION OF METALLIC OBJECTS.
BE790789A (en) * 1972-03-24 1973-02-15 Nolco N V METHOD OF MANUFACTURING SOUND-ABSORBING PLATES. (
NL7612071A (en) * 1976-10-29 1978-05-03 Nederlandse Steenwolfabriek Nv MINERAL WOOL ROOF COVERING PLATE.

Also Published As

Publication number Publication date
IT1122990B (en) 1986-04-30
CH639927A5 (en) 1983-12-15
DE2847508A1 (en) 1980-05-14
IT7925510A0 (en) 1979-09-05
GB2032845A (en) 1980-05-14
GB2032845B (en) 1982-09-15
FI791971A (en) 1980-05-03

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