GB892668A - Process and apparatus for steam treating fibrous panels - Google Patents

Process and apparatus for steam treating fibrous panels

Info

Publication number
GB892668A
GB892668A GB33268/58A GB3326858A GB892668A GB 892668 A GB892668 A GB 892668A GB 33268/58 A GB33268/58 A GB 33268/58A GB 3326858 A GB3326858 A GB 3326858A GB 892668 A GB892668 A GB 892668A
Authority
GB
United Kingdom
Prior art keywords
cement
belts
steam
belt
magnesium
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
GB33268/58A
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.)
Tectum Corp
Original Assignee
Tectum Corp
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
Application filed by Tectum Corp filed Critical Tectum Corp
Publication of GB892668A publication Critical patent/GB892668A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
    • B28B1/526—Producing 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
    • B28B7/46—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

892,668. Moulding sheets from magnesium cement. TECTUM CORPORATION. Oct. 17, 1958 [Oct. 28, 1957; Jan. 9, 1958], No. 33268/58. Classes 22 and 87(2). A magnesium cement with a fibrous filler e.g. wood wool, bagasse, straw or synthetic fibres, is steam cured, whilst compacting it between moving belts. Fibres 1 are formed into a mat on a belt 3, sprayed with cement at 4, and delivered to the nip between perforated stainless steel belts 6, 7 backed by cast iron platens 8, 9. Steam is fed through a pipe 11 into a manifold 10, through the perforations on the lower belt, the moulding material, the upper belt, and out through the exhaust manifold 12. The belts are tensioned by hydraulic cylinders 26 acting on the driving rollers 23. Additional support for the lower belt is provided by rollers 27, 29. The upper belt is carried by a frame 33 which is adjustable vertically by threaded shafts 36. The distance between the belts is kept constant during their passage through the press by locking members 77 on endless conveyers 76. The locking members are moved into and out of operative position by a ratchet handle 94, and they are locked in the operative position by levers 99 operated by a handle 110. The whole machine is arranged in a container 125 through which hot air is circulated to prevent condensation of the steam. The cement may be magnesium oxysulphate or oxychloride cement. The ratio of binder to fibre may be 70 to 30, to 30 to 70, respectively. In a particular example the composition comprises (parts in grams):- Wood fibre (20% moisture) 448, MgO 284, MgSO 4 , 7H 2 O 153, and water 435. The curing time may vary from 30 seconds to 5 minutes.
GB33268/58A 1957-10-28 1958-10-17 Process and apparatus for steam treating fibrous panels Expired GB892668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US892668XA 1957-10-28 1957-10-28

Publications (1)

Publication Number Publication Date
GB892668A true GB892668A (en) 1962-03-28

Family

ID=22216644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33268/58A Expired GB892668A (en) 1957-10-28 1958-10-17 Process and apparatus for steam treating fibrous panels

Country Status (1)

Country Link
GB (1) GB892668A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232634A (en) * 1989-06-13 1990-12-19 Agrifibre Dev Ltd Method and apparatus for compression moulding resin bound low bulk density material
GB2255522A (en) * 1991-04-23 1992-11-11 British Aerospace Progressive curing of composite materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232634A (en) * 1989-06-13 1990-12-19 Agrifibre Dev Ltd Method and apparatus for compression moulding resin bound low bulk density material
GB2255522A (en) * 1991-04-23 1992-11-11 British Aerospace Progressive curing of composite materials
GB2255522B (en) * 1991-04-23 1994-02-16 British Aerospace Progressive curing of composite materials

Similar Documents

Publication Publication Date Title
US3230287A (en) Process for manufacturing moldable fibrous panels
US2944291A (en) Process for steam treating magnesium cement fibrous panels
US5063010A (en) Making pressed board
US3880975A (en) Continuous hardboard production
EP0330671B1 (en) Insulating board containing natural fibres, process and device for its production
US2480851A (en) Method for rapid manufacture of sheet lumber
GB957246A (en) Improvements in or relating to methods of and means for manufacturing padding and insulating materials comprising fibres
US2700177A (en) Method and apparatus for making fiberboard with prepressed margins
SE8205429L (en) PROCEDURE FOR PRESSING THE PIECE FROM THE BINDING CONTAINING ORGANIC FIBER MATTER AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE
ES235145A1 (en) Composite sheet fabricating apparatus and methods
EP3845351B1 (en) Sorted communal waste processing method
US2744848A (en) Making fiberboard of uniform density and thickness
SE7902364L (en) FORMBAND FOR A PRESSURE FOR EXERCISING EXTERNAL PRESSURE
ES8702544A1 (en) Method and apparatus for making fibre mats as starting materials for moulded articles.
GB892668A (en) Process and apparatus for steam treating fibrous panels
US3188367A (en) Process for manufacturing plates from wood shavings and fibers
GB999696A (en) Moldable fibrous panels
US2173391A (en) Process of manufacturing fibrous products
US2383849A (en) Method and apparatus for making sheet material
US3969460A (en) Fiber mat curing
US3383735A (en) Apparatus for the manufacture of pressed boards
GB647109A (en) Process and apparatus for the production of sheet material
GB993644A (en) Device for the wet treatment of textile materials
GB815441A (en) Improvements in or relating to continuous hot press
DE650143C (en) Method and device for the production of artificial leather