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GB1463769A - Processes and apparatus for making glass-fibre reinforced board - Google Patents

Processes and apparatus for making glass-fibre reinforced board

Info

Publication number
GB1463769A
GB1463769A GB1501274A GB1501274A GB1463769A GB 1463769 A GB1463769 A GB 1463769A GB 1501274 A GB1501274 A GB 1501274A GB 1501274 A GB1501274 A GB 1501274A GB 1463769 A GB1463769 A GB 1463769A
Authority
GB
United Kingdom
Prior art keywords
slurry
mat
boarding
water
belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1501274A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiheiyo Cement Corp
Original Assignee
Onoda Cement Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP48043108A external-priority patent/JPS49130417A/ja
Priority claimed from JP4310773A external-priority patent/JPS542218B2/ja
Priority claimed from JP4310673A external-priority patent/JPS5233645B2/ja
Application filed by Onoda Cement Co Ltd filed Critical Onoda Cement Co Ltd
Publication of GB1463769A publication Critical patent/GB1463769A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/02Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material with fibres or particles being present as additives in the layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/52Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/522Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement for producing multi-layered articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/52Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/526Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement by delivering the materials on a conveyor of the endless-belt type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/02Conditioning the material prior to shaping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B5/00Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/02Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/026Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length
    • B28B5/027Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/101Glass fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00Walls, panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Producing Shaped Articles From Materials (AREA)

Abstract

1463769 Continuously producing fibre-glass-reinforced slurry boarding ONODA CEMENT CO Ltd 4 April 1974 [18 April 1973 (3)] 15012/74 Heading B5A [Also in Division B2] A cementitious slurry and chopped glass fibres are sprayed from respective separate heads 11, 10 on to a conveyer belt to continuously form boarding, the separate streams of slurry and glass fibres being mixed intimately in the space between the spray heads 11, 10 and the belt. In a preferred embodiment for producing layered boarding, a cementitious powder 1 and aqueous solution or water 8 are fed as a slurry to a tank 5 by a mixer 4. The slurry and glass fibres cut from a roving are sprayed simultaneously on to the conveyer belt by at least one pair of heads 11, 10 movable with the conveyer, which comprises a rough rubber belt 12c, porous steel belt 12b and filter cloth 12a. The three belts are water-washed at 20 and the filter cloth 12a dried by rollers 23 and a suction box 24. Individually controllable suction boxes 14 apply pulsed suction forces to remove the aqueous solution of water from the mat M and recirculate it through gas/ liquid separators 15. Rolls 13 level the mat M and needle it to provide a rough surface. A blower 17 aids transfer of the mat M to a second conveyer belt at H where further chopped glass fibres and an air-entraining slurry are applied simultaneously by spray heads 37, 38, to form a lightweight mat M<SP>1</SP>. This slurry is mixed at 28 with air bubbles produced by mixing a foaming agent with water at 34 and feeding the air bubbles through a foaming machine 35. The upper surface of the mat M<SP>1</SP> is finished by rollers 40, a vibrating plate 41 and a patterned roller 42. A third layer of non-foamed slurry and fibres can be applied. The layered boarding is cut by a cutter 43 and passes through a curing oven 45. In further embodiments, the mats M, M<SP>1</SP> are moulded on respective conveyer belts to provide single layer boarding. Materials.-The slurry is formed from an aqueous suspension of admixtures of Portland, alumina or magnesia cement, gypsum, calcium sulfate hemihydrate, anhydrite, retarders, accelerators, waterproofers and dispersers, with (2-30) % by weight of alkali-resistant glass fibre for the mat M and (0À5-5)% by weight of glass fibre for the air-entrained mat M<SP>1</SP>. The foaming agent comprises saponin.
GB1501274A 1973-04-18 1974-04-04 Processes and apparatus for making glass-fibre reinforced board Expired GB1463769A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP48043108A JPS49130417A (en) 1973-04-18 1973-04-18
JP4310773A JPS542218B2 (en) 1973-04-18 1973-04-18
JP4310673A JPS5233645B2 (en) 1973-04-18 1973-04-18

Publications (1)

Publication Number Publication Date
GB1463769A true GB1463769A (en) 1977-02-09

Family

ID=27291439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1501274A Expired GB1463769A (en) 1973-04-18 1974-04-04 Processes and apparatus for making glass-fibre reinforced board

Country Status (3)

Country Link
DE (1) DE2417558A1 (en)
FR (1) FR2226255B1 (en)
GB (1) GB1463769A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288563A (en) 1978-03-23 1981-09-08 Imperial Chemical Industries Limited Process for the manufacture of a glass fibre-reinforced plastics article and a glass fibre paste or slurry for use in the process
US4379729A (en) 1979-08-09 1983-04-12 Tarmac Industrial Holdings Limited Method and apparatus for the production of composite sheet material and a sheet material produced thereby
US7754052B2 (en) 2006-11-01 2010-07-13 United States Gypsum Company Process and apparatus for feeding cementitious slurry for fiber-reinforced structural cement panels
US8038915B2 (en) 2006-11-01 2011-10-18 United States Gypsum Company Panel smoothing process and apparatus for forming a smooth continuous surface on fiber-reinforced structural cement panels

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1518144A (en) * 1975-07-04 1978-07-19 Pilkington Brothers Ltd Glass fibre reinforced cement composite materials
JPS5354219A (en) * 1976-10-28 1978-05-17 Asahi Glass Co Ltd Continuous process for production of f r c and apparatus therefor
JPS5363419A (en) * 1976-11-18 1978-06-06 Asahi Glass Co Ltd Spraying appratus for grc
DE2923936C2 (en) * 1979-06-11 1985-09-19 Ametex AG, Niederurnen Process for the manufacture of a product from fibers and a binder
DE2927992C2 (en) * 1979-07-09 1984-09-20 Amiantus AG, Niederurnen Process for the manufacture of a product from fiber-cement suspensions
IE49426B1 (en) * 1980-03-18 1985-10-02 Tegral Technology Ltd Method of making asbestos-free,glass fibre reinforced,cement composite products and the products of such method
DE3118656A1 (en) * 1981-05-11 1982-11-25 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING (ALPHA), SS-UNSATURATED ALDEHYDES AND 2,7-DIMETHYL-2,6-OCTADIENAL
FR2508599B1 (en) * 1981-06-26 1986-03-28 Marchal Equip Auto METHOD OF MANUFACTURING A REFLECTIVE METAL SURFACE, REFLECTOR OBTAINED BY SAID METHOD AND ITS USE FOR A LIGHTING PROJECTOR
GB2148871B (en) * 1983-10-31 1987-01-07 Pilkington Brothers Plc Sheet material of fibre-reinforced cement
US7513963B2 (en) * 2006-11-01 2009-04-07 United States Gypsum Company Method for wet mixing cementitious slurry for fiber-reinforced structural cement panels
US7524386B2 (en) * 2006-11-01 2009-04-28 United States Gypsum Company Method for wet mixing cementitious slurry for fiber-reinforced structural cement panels

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288563A (en) 1978-03-23 1981-09-08 Imperial Chemical Industries Limited Process for the manufacture of a glass fibre-reinforced plastics article and a glass fibre paste or slurry for use in the process
US4366287A (en) 1978-03-23 1982-12-28 Imperial Chemical Industries Limited Glass fibre/synthetic resin paste or slurry
US4379729A (en) 1979-08-09 1983-04-12 Tarmac Industrial Holdings Limited Method and apparatus for the production of composite sheet material and a sheet material produced thereby
US7754052B2 (en) 2006-11-01 2010-07-13 United States Gypsum Company Process and apparatus for feeding cementitious slurry for fiber-reinforced structural cement panels
US8038915B2 (en) 2006-11-01 2011-10-18 United States Gypsum Company Panel smoothing process and apparatus for forming a smooth continuous surface on fiber-reinforced structural cement panels

Also Published As

Publication number Publication date
FR2226255A1 (en) 1974-11-15
FR2226255B1 (en) 1978-03-31
DE2417558A1 (en) 1974-11-14

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee