Heat insulation coating

FIELD: construction.

SUBSTANCE: heat insulation coating represents a mixture of metallised and non-metallised ceramic microspheres, as a binding substance of which a mixture is used containing styrene-acrylic latex (5.0-10 wt %), sodium liquid glass (1.0-3.0 wt %) and low-molecular silicon rubber (4.0-6.0 wt %). Metallisation of ceramic microspheres is arranged from a soft magnetic iron metal, with thickness of 800-900 angstrom. In process of coating application, microspheres are exposed to magnetic power lines, for creation of which on the reverse side of the surface of the item of complex configuration, in respect to the side, onto which a coating is applied, there is a steel core, an induction winding, wires to supply current and voltage.

EFFECT: higher efficiency and productivity of heat insulation works.

1 dwg

 

The invention relates to high-temperature thermal insulation (heat) coating based on styrene-acrylic latex and hollow microspheres and can be used in the construction, engineering, aviation, space, railway and other industries.

Known thermal insulation coating containing layer, the adhesive associated with the basis of cover material and consisting of a hollow ceramic microspheres and polymeric binder based on acrylic latex, the content of the microspheres by weight is 60-80%, and the binder content is 20-40% (patent UM No. 53667 from 27.12.2005,).

The disadvantage of this coating is the inability of protection against penetration through the floor beams of infrared and radio frequency ranges, and low insulating properties due to the relatively high thermal conductivity of the mixture of ceramic microspheres and a binder.

This drawback is devoid of thermal insulation coating (prototype) with metallic microspheres and non-plated microspheres and mixtures of microspheres consisting of polymer, glass and ceramic microspheres. Is used as a binder a mixture of a styrene-acrylic latex (5,0-10% by weight), sodium liquid glass (1,0-3,0% by weight) and low-molecular silicone rubber (4,0-6,0% by weight of the (e). As the coating can be used silver. It is advisable to use ceramic microspheres aluminosilicate material with a diameter of 5 to 150 microns and the thickness of the silver coating of about 500 angstroms (see the patent for useful model RU 102021, EV 1/74, "thermal Insulation coating", ed. Yakunin G.N., Prokopiev I.P., V. Burakov).

Hollow microspheres in Russia is produced by the firm "Uralic" (Chelyabinsk). The true density of the microspheres is between 0.8 and 0.9 g/cm3. The layer of metallic microspheres may be applied separately from the application of all coatings in General and with him.

When applying the liquid coating metallic microspheres, as most heavy particles of filler, settle and remain in the lower part, forming an extra layer that provides protection from electromagnetic radiation and simultaneously increases the insulating properties due to the high absorption of infrared radiation by a layer of metallic microspheres.

A significant disadvantage of the prototype is to move the heavier ceramic microspheres with a metallic coating under the action of gravity, which it is impossible to control, and it reduces the performance of the process of applying the insulating coating, especially on the surface of a complex configuration, and makes it almost impossible for the La application on vertical and ceiling surfaces.

The technical objective of the claimed invention is to provide a heat-insulating coating comprising a ceramic hollow spheres with a metal coating of magnetic metal is iron, which causes a controlled magnetic field that can effectively be applied insulating coating on the surface of a complex configuration, and vertical and ceiling.

The problem is solved due to the fact that thermal insulation coating composed of a mixture of metallic and non-plated ceramic microspheres, as a binder a mixture of a styrene-acrylic latex (5,0-10% by weight), sodium liquid glass (1,0-3,0% by weight), low molecular weight silicone rubber (4,0-6,0% by weight), characterized in that to increase the speed of formation of the layer of spheres with a metallic coating and improve the quality of surface friction of a complex configuration and relief metallization of ceramic microspheres made of soft magnetic metal iron thickness 800-900 angstroms and, in the process of coating on them, affect the magnetic lines of force created on the back surface of a complex configuration with respect to the side to be coated, has a steel core, the induction of the coil, wires for supplying electric current and voltage.

The invention is illustrated in the drawing, on which:

Figure 1 - schematic illustration of the insulating cover.

Insulating coating consists of binders 1-based acrylic latex (5,0-10% by weight), sodium liquid glass (1,0-3,0% by weight) and low-molecular silicone rubber (4,0-6,0% by weight)containing non-plated hollow ceramic microspheres 2, metallized ceramic hollow microspheres 3, covered with a soft magnetic metal iron 4, a thickness of 800 to 900 angstroms, the surface 5 product 6 complex configuration. Moving hollow ceramic microspheres 3, covered with a soft magnetic metal iron 4, under the influence of the magnetic field lines 7, created by the steel core 8 and the induction coil 9, with the wires 10 to the supply voltage U and current I. the result is a layer 11 of metallized ceramic hollow microspheres 3, covered with a soft magnetic material iron 4 generated under the action of magnetic force lines 7, and the layer 12 of non-plated hollow ceramic microspheres 2. Side surface 5 product 6 complex configuration is thermal radiation 13.

The proposed invention operates as follows.

Heat-insulating coating, the state is the future of the binder 1 based on styrene-acrylic latex and containing metallized ceramic hollow microspheres 3, covered with a soft magnetic metal iron 4, and demetallation ceramic hollow microspheres 2, is applied to the surface 5 product 6 complex configuration, while simultaneously heat-insulating coating affect the magnetic lines of force 7. Interacting with the magnetic iron 4, they create a protective layer 11, a densely structured to provide a high degree of protection from heat and electromagnetic radiation 13. Magnetic lines of force 7 act on metallized ceramic hollow microspheres 3, covered with a soft magnetic metal iron 4, stronger than the gravitational field, as specified in the prototype (see the patent for useful model RU 102021, EV 1/74, "thermal Insulation coating", ed. Yakunin G.N., Prokopiev I.P., V. Burakov). At the same time, capacity, and hence the density of the magnetic lines of force 7 is determined by the core 8 and the induction coil 9, depending on the value of the voltage U and current. The effect of magnetic field lines does not depend on position in space (horizontal, vertical), whereas gravitational forces are only one vector directed toward the center of the earth. In the outer layer 12 is formed of non-plated ceramic hollow microspheres 2, the cost of which is below the hollow ceramic microspheres 2, pokr is mentioned soft magnetic metal iron 4.

The proposed invention allows the application of heat-resistant coating with a significantly better performance, because there is no need to apply two or three layers, as is done in the prototype (see the patent for useful model RU 102021, EV 1/74, "thermal Insulation coating", ed. Yakunin G.N., Prokopiev I.P., Burakov VV), and will significantly improve the quality, because the magnetic lines of force provide reliable density metallized ceramic hollow microspheres coating the surface of the product, regardless of the topography and the configuration and position in space.

Thermal insulation coating composed of a mixture of metallic and non-plated ceramic microspheres, as a binder a mixture of a styrene-acrylic latex (5,0-10% by weight), sodium liquid glass (1,0-3,0% by weight), low molecular weight silicone rubber (4,0-6,0% by weight), characterized in that, to increase the rate of formation of the protective layer of the insulating coating of the metallized ceramic hollow microspheres and improve adhesion with the surface of a complex configuration and topography, metallization of ceramic microspheres made of soft magnetic metal iron of a thickness of 800 to 900 angstroms and in the coating process they are exposed to magnetic force Lin and, created on the back surface of a complex configuration with respect to the side to be coated, has a steel core, an inductive coil, wires for supplying electric current and voltage.



 

Same patents:

FIELD: construction.

SUBSTANCE: structure of a room comprises a frame of a room, window and door openings, acoustic barriers of shop surfaces and unit sound absorbers of conical and prismatic types above noisiest process equipment. Acoustic barriers comprise profiled and perforated walls, between which a layer of a sound-absorbing material is arranged. Elements of a sound-absorber of prismatic type above noisiest process equipment comprise a frame suspended by hooks, for instance, on cables or directly fixed to a rigid wall or a ceiling of a production room. The frame is arranged by its form in the form of two cubic surfaces, one of which is external, the outer one, is arranged as perforated, and the other one, the inner one, - acoustically transparent, besides, the sound-absorbing material wrapped by a meshy nylon fabric is arranged in the gap between frames. The relation of the ratio (H/W) of parameters of the production room to thickness HI of the acoustic barrier is in the optimal range of values 0.0007÷0.006, and the relation of the ratio (H/W) of the room height to its width to the ratio (H2/R) of thickness of the sound absorber element to its height of suspension is in the optimal range of values 0.27÷0.68. Elements of the sound absorber of conical type comprise a rigid conical frame with a round cover, tightly adjacent to the base of the cone as a result of a fastening spring, arranged inside the frame and connecting a metal cap, arranged at the cone top with a hook for suspension to the production room ceiling. On the inner conical surface of the frame there is a sound-absorbing element from mineral fibre in a wrapper from coarse fabric or sackcloth. The frame with the round cover have perforation in the form of holes of round, slot or rectangular shape and are made of metal.

EFFECT: invention makes it possible to increase efficiency of noise absorption due to expansion of the frequency range and secondary absorption of sound waves reflected from a sound absorber.

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FIELD: construction.

SUBSTANCE: sound-absorbing structure of a room comprises a frame of a room, window and door openings, acoustic barriers of shop surfaces and unit sound absorbers of conical and prismatic types above noisiest process equipment. Acoustic barriers comprise profiled and perforated walls, between which a layer of a sound-absorbing material is arranged. Elements of a sound-absorber of prismatic type above noisiest process equipment comprise a frame suspended by hooks, for instance, on cables or directly fixed to a rigid wall or a ceiling of a production room. The frame is arranged by its form in the form of two cubic surfaces, one of which is external, the outer one, is arranged as perforated, and the other one, the inner one, - acoustically transparent. The sound-absorbing material wrapped with a meshy nylon fabric is arranged in the gap between frames. The relation of the ratio (H/W) of parameters of the production room to thickness HI of the acoustic barrier is in the optimal range of values 0.0007÷0.006, and the relation of the ratio (H/W) of the room height to its width to the ratio (H2/R) of thickness of the sound absorber element to its height of suspension is in the optimal range of values 0.27÷0.68. Elements of the sound absorber of conical type comprise a rigid conical frame with a round cover, tightly adjacent to the base of the cone as a result of a fastening spring, arranged inside the frame and connecting a metal cap, arranged at the cone top with a hook for suspension to the production room ceiling. On the inner conical surface of the frame there is a sound-absorbing element from mineral fibre in a wrapper from coarse fabric or sackcloth. The frame with the round cover have perforation in the form of holes of round, slot or rectangular shape and are made of metal.

EFFECT: invention makes it possible to increase efficiency of noise absorption due to expansion of the frequency range and secondary absorption of sound waves reflected from a sound absorber.

2 cl, 5 dwg

FIELD: construction.

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FIELD: construction.

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FIELD: construction.

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4 cl, 4 dwg

FIELD: physics.

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28 cl, 3 tbl, 22 dwg

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15 cl, 4 tbl, 14 ex

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1 tbl, 10 ex

FIELD: chemistry.

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4 tbl, 1 ex

FIELD: chemistry.

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25 cl, 11 tbl

FIELD: chemistry.

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1 tbl

FIELD: chemistry.

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4 cl, 1 tbl, 1 ex

FIELD: construction.

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1 cl, 1 tbl

FIELD: chemistry.

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7 cl, 2 dwg, 10 tbl

FIELD: fireproof paint-vehicle protective materials.

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EFFECT: paint with improved functionality, increased fire resistance, and expanded blowing temperature interval.

3 cl, 4 ex, 2 tbl

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