• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A building board comprises a core 31 of set cementitious material, such as gypsum, faced on at least one side by a fabric or web 33 of mineral fibres embedded in the face of the core and a continuous film 32 of the cementitious material having a higher density and lower porosity than the core extending over the outer face of the fabric. The film may have a smooth surface or a desired textured or figured surface. The preferred fabric or web 33 is a non-woven glass fibre tissue and it is preferred that a continuous film 32 of gypsum at the surface should not exceed 2 mm in thickness. The board is made by bringing the fabric or web into contact with the respective face of a layer of an aqueous slurry of gypsum plaster or other cementitious material, and vibrating the layer of slurry in contact with the fabric or web until slurry penetrates the web and the latter is completely embedded. The process can be carried out continuously by supporting the slurry between flexible belts which are vibrated by mechanical action applied to their faces remote from the slurry. Boards accordingly to the invenion can have greater strength and/or greater resistance to fire than conventional paper-faced gypsum board.
    公开号:SU1706381A3
    申请号:SU802928852
    申请日:1980-05-30
    公开日:1992-01-15
    发明作者:Альберт Пилгрим Томас
    申请人:Бпп Индастриз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to construction and can be used, in particular, in the manufacture of a building plate from a cementing material.
    A known method of manufacturing a construction plate of fiberglass cloths and a liquid mass of stucco.
    The disadvantage of this method is that a thick layer of plaster mass does not permeate the web, while water passes through a thin layer of mass. The use of fibers, for example glass fibers dispersed in a cementitious material, is associated with difficulties due to the dispersion of the fibers in the liquid mass, as well as limitations in strength, which are caused by uneven adhesion between the fibers and the surrounding cementitious material.
    The closest to the present invention is a method of manufacturing a construction plate, according to which the formation of a layered composition is provided by laying a layer of inorganic fibrous material on a horizontal support substrate, applying a layer of water onto the canvas
    O5 Sde 00

    och
    hardening the mixture and laying on the specified layer of another web of inorganic fibrous material, molding of the layered composition of the plate and removing it from the supporting base after setting hardening.
    However, the slabs manufactured in a known manner are of poor quality, since the finished product has a rough fibrous surface, which makes it difficult to facing building structures,
    The purpose of the invention is to improve the quality of the plate.
    This goal is achieved by using permeable nonwoven fabric for webs, and plate molding is carried out by applying vibration loads to the layered composition until a continuous film of an aqueous hardening mixture is formed on the surface of the permeable nonwoven material.
    Fig. 1 shows an installation for manufacturing a Ripsovon-i plate according to the proposed method; figure 2 - plate, cross section.
    Water 1, beta-hemihydrate gypsum plaster 2 with conventional additives and up to about 3% crushed glass fibers 3 of a given length are loaded into mixer 4 containing a tray conveyor belt 5 and agitators 6, and discharged continuously in the form of an aqueous hardening mixture 7. If added to the core a very small amount of crushed fiberglass Ilch is not added at all
    but, mixer 4 is not used. Instead, you can use downtime screw mixer or rotating plate mixer, unloading on the canvas 8 of nonwoven material through the chute 9 Canvas 10 of permeable nonwoven, for example, fiberglass material is fed from the drum 11 and placed on the upper surface of the reverse branch of the belt 12 of the upper carrier conveyor. The second canvas 8 of permeable nonwoven material is fed from the drum 13 to the surface of the belt 1 of the lower carrier conveyor. Conveyor belts are made of polypropylene and are equipped with washing devices 15 and 16; they are moved in the direction indicated by the arrows. Along
    ten
    15

    0 20
    06381
    The side edges of the lower conveyor belt 1D are fixed by segments of ribbons, square seed, which hold the water hardening mixture 7 and determine the width of the plate.
    The plaster gypsum liquid mass, coming from the mixer, forms a mound 17 between converging tapes 12 and 1 and layers of webs 8 and 10 at the entrance to the gap between the two supporting conveyors. At the entrance of the belt 12 and in contact with the corresponding vibrators 18, which may be, for example, shafts that are square in cross section and rotate at a sufficient speed, for example, about 10 RPM. Under the action of vibration transmitted from the vibrators 18 through the carrier belts 12 and the webs 8 and 1C are immersed in a layer of an aqueous hardening mixture 7 from the respective surfaces, which penetrates through the webs and forms continuous films of this mixture in contact with the carrier tapes 12 and 1 on both sides .
    The aqueous hardening mixture 7 with the webs 8 and 10 held by it then passes under the roller 19, which is intended to give the layered composition of the desired thickness, and by the time it reaches the end of the conveyor, the aqueous hardening mixture 7 solidifies. The resulting sheet
    20 is cut into pieces and sent to a continuous drying in the usual manner.
    The result is a building board with a conventional core.
    21 and smooth surface layers of p 22, having a minimum thickness but a considerable density, and covering permeable nonwoven material.
    25
    35
    40
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    A method of making a building board, comprising forming a layered composition by laying a sheet of inorganic fibrous material on a horizontal support base, applying a layer of water hardening mixture to the sheet and laying another layer of an inorganic fibrous material on the layer, forming the layered plate composition and removing it from bearing base after seizure tver517 6381 6
    blowing mixture, distinguished by imposing on a layered composition with the fact that, from the point of view of increasing the vibration load of the plate, the permeable nonwoven nonwoven nonwoven fabric is permeated on the surface - rial, and plate formation is carried out with a film of an aqueous hardening mixture.
    v. “.: v.-....:.: .. zg
    22
    FIG. -I
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1706381A3|1992-01-15|Method for manufacturing building plate
    US4916004A|1990-04-10|Cement board having reinforced edges
    US5221386A|1993-06-22|Cement board having reinforced edges
    US4504335A|1985-03-12|Method for making reinforced cement board
    US4450022A|1984-05-22|Method and apparatus for making reinforced cement board
    CA1212027A|1986-09-30|Cementitious board manufacture
    US4816091A|1989-03-28|Method and apparatus for producing reinforced cementious panel webs
    US4793892A|1988-12-27|Apparatus for producing reinforced cementitious panel webs
    US3993822A|1976-11-23|Multi-layer plasterboard
    CA2497300A1|2004-03-18|Composite board
    FR2458391A1|1981-01-02|CONSTRUCTION ELEMENT AND PROCESS FOR ITS PREPARATION
    US5961900A|1999-10-05|Method of manufacturing composite board
    IL128747A|2002-07-25|Building board
    EP0259376B2|1998-07-15|Cement board having reinforced edges
    RU2102240C1|1998-01-20|Method of production of combination slabs
    US4005954A|1977-02-01|Production of plaster floors by the flooding process
    同族专利:
    公开号 | 公开日
    JPS63172607A|1988-07-16|
    JPS55162487A|1980-12-17|
    NO801602L|1980-12-01|
    NO151352C|1985-03-27|
    FR2457754B1|1984-08-24|
    IT8022454D0|1980-05-30|
    DK152687B|1988-04-18|
    GB2053779A|1981-02-11|
    NZ193792A|1983-11-18|
    US4378405A|1983-03-29|
    DK231180A|1980-12-01|
    GR68472B|1982-01-04|
    NO151352B|1984-12-17|
    PL126492B1|1983-08-31|
    CA1148458A|1983-06-21|
    IE49483B1|1985-10-16|
    IE801082L|1980-11-30|
    SE8004007L|1980-12-01|
    AU531527B2|1983-08-25|
    PL224587A1|1981-02-13|
    NL8003121A|1980-12-02|
    IT1131220B|1986-06-18|
    FI801765A|1980-12-01|
    GB2053779B|1983-05-18|
    ZA803205B|1981-05-27|
    FI72289B|1987-01-30|
    FI72289C|1987-05-11|
    ATA289380A|1987-08-15|
    LU82494A1|1980-10-08|
    SE441610B|1985-10-21|
    FR2457754A1|1980-12-26|
    ES8102493A1|1981-02-16|
    ES491922A0|1981-02-16|
    AT385233B|1988-03-10|
    BE883527A|1980-12-01|
    DE3019917A1|1980-12-11|
    UA6319A1|1994-12-29|
    AU5872880A|1980-12-04|
    DK152687C|1988-08-29|
    JPS6365482B2|1988-12-15|
    DE3019917C2|1995-01-05|
    JPH0126845B2|1989-05-25|
    CH637320A5|1983-07-29|
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    RU2756479C1|2021-03-29|2021-09-30|Федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский Московский государственный строительный университет" |Method for forming contact layers of multilayer enclosing structures|
    法律状态:
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    申请号 | 申请日 | 专利标题
    GB7918871|1979-05-30|LV931198A| LV5606A3|1979-05-30|1993-11-11|Downgrade to the construction platform|
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