Device for pressing to form cavity and method of cavities formation in gypsum board

FIELD: manufacturing technology.

SUBSTANCE: group of inventions relates to pressing device and method for forming recesses in plate. Device comprises pressing head having pressing surface, which is intended for contact with plate, and supporting element. At that, pressing head compresses plate section between pressing surface and supporting element for formation of cavity in plate. Pressing surface comprises sections of first and second surfaces, separated by textured area, which is intended for compression of plate in supporting element direction with smaller compression force in comparison with sections of first and second surfaces. Device also comprises drives to move pressing head and supporting element in first direction, which is, substantially, corresponds to plate movement direction, and in second direction, which is, substantially, perpendicular to plate plane, wherein pressing device speed in first direction, substantially, corresponds to plate speed.

EFFECT: technical result is higher efficiency of pressing and formation of cavities in plate.

15 cl, 9 dwg, 1 tbl

 



 

Same patents:

FIELD: construction.

SUBSTANCE: invention relates to construction of buildings and structures in quake-prone areas, under conditions of impact of vibrodynamic loads at factories, in cities, and is also applicable for structures of reservoirs of dry loose substances in industrial centres having sources of vibrations, and may be used in the area of means of transport in creation of body designs. The result is achieved by the method of increasing earthquake stability of a brick wall panel, which consists in the fact that a layer of mortar is placed onto the foundation between columns, and flat stiff stops are installed on it in the form of strips with vertically welded damping rods, besides, after every 8-10 rows of bricks laid on mortar stiff supports are welded, and damping rods are extended using welding, besides, in channels of the middle zone they pour mortar with vibration-damping crumb from ground worn car tyres, rods are made as damping, and each one represents a cylindrical damping element, to the ends of which flat stiff stops are rigidly attached, and the inner cavity is filled with a layer of vibration-damping material, for instance, sand, at the same time density of the vibration-damping layer is made as lower than the density of the outer cylindrical shell of the damping element, at the same time in the channels near ends of the panel they place layers of the vibration-damping material of U-shaped type, which perceive spatial vibration.

EFFECT: increased earthquake stability of a brick wall panel.

2 cl, 3 dwg

FIELD: construction.

SUBSTANCE: invention relates to construction of buildings and structures in quake-prone areas. In a quakeproof brick wall panel comprising brickwork from bricks with holes in the middle of the width and at one quarter of the length from brick ends, laid onto mortar with matching of holes into channels, and reinforcement rods pulled through channels with their stiff fixation at the ends, by means of flat stops along thickness, equal to thickness of the mortar joint, and in channels near the ends of the panel there are layers of vibration-damping material of U-shaped type that perceive spatial vibration, reinforcement rods are made as damping, and each of them represents a cylindrical damping element, to the ends of which flat stiff stops are stiffly attached, and the inner cavity is filled with a layer of vibration-damping material, for instance, sand, at the same time density of the vibration-damping layer is less than the density of the outer cylindrical shell of the damping element, besides, layers of vibration-damping material structurally made as U-shaped and perceiving spatial vibration, are made of ground worn car tyres on a binder in the form of rubber glue, liquid glass or polymer binder, and at every 8-10 rows of bricks laid on mortar stiff stops are welded, and damping rods are extended using welding, besides, mortar with vibration-damping crumb is poured into channels of the middle zone to form stiffer zones, and reinforcement rods are made damping, and each of them represents coaxially arranged cylindrical shells, between which there are tubular damping elements placed coaxially from vibration-damping material, to the ends of which flat stiff stops are rigidly attached, and the inner central cavity is filled with sand, at the same time density of layers of vibration-damping material is less than density of coaxially arranged cylindrical shells.

EFFECT: increased earthquake stability of a brick wall panel by increased damping.

4 dwg

FIELD: construction.

SUBSTANCE: invention relates to composite wall panels. The method to determine properties of paper lining of a wall board, including a stage, when they take the value of wall board core stiffness, a stage, when they determine the required value of resistance to pulling of nails, based on technical requirements to a wall board, and a stage, when they calculate the value of paper lining stiffness, based on the taken values of core stiffness and determined value of resistance to pulling of nails. The method includes a stage, when the calculated value of paper lining stiffness is displayed on a display device.

EFFECT: production of panels having required values of resistance to pulling of nails.

8 cl, 6 dwg

FIELD: construction.

SUBSTANCE: method to manufacture acoustic panels includes preparation of a water suspension from mineral wool, a binder, a filler and target additives. The produced suspension in the form of a raw mat is applied onto a continuously moving tape with a net. It is pressed with the help of vacuum. Drying and finishing treatment is performed. At the same time mineral wool for the suspension is additionally manufactured. After pressing moisture of the raw mat makes 55-60%. Before drying the raw mat is cut, drying is carried out in a multi-level moulding drying furnace with three heating zones, accordingly: 270-280C, 330C and 240C. At the same time variation of temperature in the cross profile of the furnace makes +/-5C, and moisture of panels at the outlet from the moulding furnace is not more than 0.5%.

EFFECT: ecological compatibility of the method, high efficiency, high acoustic and operational characteristics of finished items.

16 cl, 1 tbl, 1 dwg

FIELD: construction.

SUBSTANCE: earthquake-resistant brick wall panel includes brick masonry of bricks with holes in the middle of width and on one fourth of length from brick end faces laid on mortar with alignment of holes into channels, and reinforcement bars passed through the channels with their stiff fixation on the end faces, by means of flat stop pieces as to thickness, which are equal to thickness of a mortar seam, and in the channels near the end faces of the panel there arranged are layers of vibration cushioning material of a U-type, which receive spatial vibration; with that, layers of vibration cushioning material are made from crushed worn-out tyre casings on a binder in the form of a rubber adhesive, liquid glass, or a polymer binding agent, and in every 810 rows of bricks laid on mortar there welded are stiff stop pieces, and damping rods are elongated by application of welding; with that, mortar is poured into the channels of an intermediate zone with vibration cushioning chips from crushed tyre casings for formation of stiffer zones. Reinforcement bars are vibration cushioning, and each of them represents coaxially located cylindrical shells, between which there coaxially located are tubular damping elements from vibration cushioning material, to the ends of which there rigidly attached are flat stiff stop pieces, and the inner central cavity is filled with sand; with that, density of layers of vibration cushioning material is less than density of coaxially located cylindrical shells.

EFFECT: increasing earthquake resistance of a brick wall panel.

4 dwg

FIELD: construction.

SUBSTANCE: system of connection for assembly panels comprising at least two external concrete layers, equipped with metal reinforcement, and an intermediate layer arranged between two external concrete layer, made of a heat insulating material; where the system includes connecting elements similar to the plates, the length (L) of which make it possible to arrange them in direction at the right angle relative to the plane of the panel itself, via a heat insulating layer, and to partially insert inside the external concrete layers. Each such connecting element on two opposite ends is engaged with appropriate engaging facilities to external concrete layers. At the same time at least one of engaging facilities provided on the opposite ends of each connecting element is made of two separate C-shaped bent profiles arranged next to each other and in parallel to each other. Besides, the specified C-shaped bent profiles are made as capable of their engagement to the appropriate rods provided on metal reinforcement at least of one of external concrete concrete layers of the panel.

EFFECT: possibility to withstand thermal expansions of surfaces, absence of thermal load impact at structure of panels.

13 cl, 5 dwg

FIELD: chemistry.

SUBSTANCE: inventions relate to light cementing compositions for making panels and methods for production thereof. The composition for making a cement slab contains a suspension which contains the following, wt %: cementing reactive powder containing portland cement 35-60, expanded and chemically coated waterproof and hydrophobic pearlite filler 2-10, water 20-40, secondary filler 0-25; entrapped air 10-50 vol. % and an optional additive selected from at least one substance from a group consisting of plasticising agents, chemical setting catalysts and chemical setting inhibitors, the suspension having temperature of at least about 40F (4.4C), while mixing components to form a composition. In the method of producing said composition, a mixture is formed from said components in conditions which provide initial temperature of the suspension of at least about 40F (4.4C). The inventions are developed in subclaims.

EFFECT: high strength, adhesiveness, high hydrophobicity, moisture resistance, stability of dimensions, resistance to bacteria, moulds, fungi, frost resistance, incombustibility of the obtained panels.

10 cl, 20 tbl

FIELD: construction.

SUBSTANCE: prefabricated wall panel used in construction of buildings and design for connection with a construction joint or at least one other prefabricated wall panel or at least one wall with the help of form elements, in which at least one edge part of the prefabricated wall panel comprises a longitudinal groove, at the same time all leaks of cement mortar that occur when monolithic concrete is poured into a cavity limited with edges of prefabricated wall panels or a wall and form elements remain in this longitudinal groove. Also an L-shaped prefabricated wall panel and versions of the method to produce a vertical construction joint are described.

EFFECT: making a vertical construction joint that prevents water leakages, no necessity to remove leaks of cement, which fills the joint.

18 cl, 13 dwg

FIELD: construction.

SUBSTANCE: paper surface is treated with glue, including water, a latex binder and a mineral filler with the specified ratio of components. The latex binder is selected from the group, including ethylene polyvinyl acetate, polyvinyl acetate latex, styrene butadiene rubber, acrylic and vinyl acrylic rubber. A sheet material is also proposed to line a gypsum wall board, as well as the method to produce treated paper and glue for surface treatment.

EFFECT: higher strength of a wall board by using a smaller ratio of water-gypsum, its improved characteristics with provision of lower energy consumption.

46 cl, 2 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a novel method of making articles in form of slabs, porous slabs, blocks made from a conglomerate consisting of pieces of stone. The method is based on the existing technology of compaction by means of vacuum compression and involves preparation of a mixture consisting of a granulate and binder which is an aqueous dispersion of an acrylic prepolymer. The granulate is selected from stone-like materials. The mixture also contains a finely dispersed inorganic aggregate. The mixture is deposited in form of a layer onto a substrate or inside a mould and is compacted via vacuum vibro-compression. Further, the binder which is present in the moulded article is hardened. At the step for compaction using vacuum vibro-compression, the article hardens in conditions which enable to prevent removal of water from the mixture due to evaporation. When making porous slabs, at the compacting step, the article hardens in conditions which enable to remove water from the mixture. When making blocks, the mixture is deposited only inside the mould. When using the method, blocks can also be made, which can then be sawed.

EFFECT: articles have high mechanical strength, resistance to UV radiation and are environmentally safe.

18 cl, 3 ex

FIELD: construction.

SUBSTANCE: method to manufacture a facade panel for external lining of a building, in which tile coating that forms an outer surface of the specified panel is created on the surface of the rear panel, to form the base of the facade panel. The tile coating is attached to the rear panel, and joints between facing tiles are closed with the help of a mass for closing of joints. The mould equipped with a lower panel is used for manufacturing, at the same time a device is installed on top of the mould for adjustment of placement of facing tiles, such as a net, to adjust locations of facing tiles arranged upside down, and in the end the rear panel is pressed on top of the facing tiles, as a result the pins for fixation are in joints between the facing tiles, fixing the tile coating and the rear panel. Joints between the facing tiles are filled with a rough coarse mass placed on the lower panel of the mould. Further they are filled with a hardening mass for closing of joints that connect facing tiles.

EFFECT: increased quality of items.

5 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a conformal coating applied on a substrate in form of an electronic block or an electronic circuit, containing a binding layer and a particulate, which enables to shield growth of the electroconductive crystalline structure. The invention also relates to a method of shielding formation an article with a conformal coating.

EFFECT: particulate contains substances which provide a winding path, which significantly inhibits growth of said structure on electroconductive surfaces.

23 cl, 4 dwg

FIELD: construction.

SUBSTANCE: paper surface is treated with glue, including water, a latex binder and a mineral filler with the specified ratio of components. The latex binder is selected from the group, including ethylene polyvinyl acetate, polyvinyl acetate latex, styrene butadiene rubber, acrylic and vinyl acrylic rubber. A sheet material is also proposed to line a gypsum wall board, as well as the method to produce treated paper and glue for surface treatment.

EFFECT: higher strength of a wall board by using a smaller ratio of water-gypsum, its improved characteristics with provision of lower energy consumption.

46 cl, 2 tbl, 4 ex

FIELD: construction.

SUBSTANCE: invention claims new plaster panel and method of its manufacturing. Panel is made of aqueous binding agent, with facets at each side, and includes first pair of parallel beveled edges at one surface and second pair of parallel beveled edges at the same or the other side, perpendicular to the first pair of edges. Width of second parallel beveled edges is within 100-200 mm. Invention claims method of forming internal construction of panel, method of panel manufacturing and version of the method, panel production train and its version, and method of panel production.

EFFECT: easy adjustment of groove shape and/or size.

35 cl, 30 dwg

FIELD: shaping clay of other ceramic compositions, particularly machines or methods for applying the material to surfaces to form a permanent layer thereon, namely production of gypsum panels with thinned edges.

SUBSTANCE: method involves forming mark on facing material of previously formed preform; additionally determining mark and creating impress in created preform; reading said mark; generating signal to activate preform cutting device. Panel production line and embossing device for said impress forming are also disclosed. Embossing device comprises frame, pairs of the first and the second rollers or toothed wheels, two transmission belts or two chains passing over rollers or toothed wheels correspondingly, as well as one wire passing between belts or chains so that longitudinal axis thereof is parallel to roller or wheel axis.

EFFECT: simplified gypsum panel production due to possibility of panel length determination during panel preform creation.

42 cl, 18 dwg

FIELD: feeding the unshaped material to moulds or apparatus for producing shaped articles, particularly gypsum boards.

SUBSTANCE: fractionating device cuts gypsum suspension at mixing means outlet for calcined gypsum mixing with water. Mixing means has hollow connection section providing gypsum suspension flowing from mixing zone inside mixing means into hopper section and hopper section to apply gypsum suspension on paperboard for gypsum board facing through suspension discharge orifice. Fractionating device comprises suspension cutting orifice opened in hopper section and hollow connection section. Device delivers gypsum suspension portion from hopper section or connection section in suspension discharge pipes. Gypsum suspension cutting method involves using described fractionating device.

EFFECT: increased reliability of gypsum suspension density control and possibility to decrease fractionated suspension flow rate change, decreased foam or foaming agent consumption along with final product quality retention.

17 cl, 12 dwg, 3 ex

FIELD: construction engineering; methods of restoration and application of protective coats on concrete surfaces.

SUBSTANCE: proposed method includes layer-by-layer application of binding primer layer and main concrete layer; prior to applying the binding primer layer, concrete or reinforced concrete surface is impregnated with 1- 10-% aqueous solution of hardening agent at flow rate of no less than 300 g/m2 and is held for at least 0.5 hour; used as binder of priming layer is composition containing Portland cement, micro-silica, superplasticizing agent C-3, organo-silicon fluid or aqueous emulsion of ornago-silicon fluid. This composition is applied at thickness of 1.5-3.0 mm and is held for 5-30 minutes after which main concrete layer, no less than 10 mm thick is applied.

EFFECT: enhanced durability and waterproofness of protective layer applied on horizontal and vertical surfaces; enhanced strength and freeze resistance.

5 cl, 3 tbl

FIELD: manufacture of building materials.

SUBSTANCE: process comprises preparing raw material, molding, autoclave processing, impregnation of surface with salt solution, and deposition of glaze suspension. According to invention, the two last operation are carried out before autoclave processing and then follows burning-off operation. Thus fabricated brick has decorative coating, which is transparent in its upper layer and below is colored and nontransparent. In order to enhance decorative effect, use of transparent colored glaze suspensions is possible.

EFFECT: lowered coating formation temperature.

2 cl

FIELD: production of gypsocardboard facing plate and installation for its realization.

SUBSTANCE: the method consists in feeding of hydratetisable calcium sulfate and a water to the first mixer and to the second mixer, feeding of facing, preparation of the first gypsum solution, application of the first gypsum solution on the facing and formation of the raw surface layer, application of the second solution on the raw surface layer, and formation of the raw pitchy layer with a density that is lower than the density of the raw surface layer, preparation of the third gypsum layer in the third mixer, formation of the second raw surface layer with a density exceeding the density of the raw pitchy layer and formation of the gypsocardboard facing plate, hydration and drying of the plate.

EFFECT: provided independent control of formation of various layers of gypsum.

27 cl, 4 dwg

The invention relates to the field of construction, in particular to the performance of waterproofing and anti-corrosion coatings to protect the concrete surface foundations, reservoirs, canals and other structures exposed to saline or chemically aggressive water

FIELD: apparatus or processes for treating or working shaped articles.

SUBSTANCE: method comprises clamping the gypsum board panel and the layers of construction board, which are provided with plaster sheet between the layers, between the female and male members of the mould and applying the vinyl glue on the layers of the construction board. The sheet of plaster is cut along the radius in both of the panels, and the layer of construction board is stretched outside from the arc of the bend and is pressed from inside.

EFFECT: enhanced convenience of assembling the panels.

7 cl, 9 dwg

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