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between a rotating grinding disc (rotor) and a stationary disc (stator) each with radial grooves that provides the grinding surface. Wood chips are fed into the centre and are broken down as the centrifugal force pushes them towards the circumference of the discs where the grooves are finer to
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fibres can to some extent be controlled by altering the distance between the discs where a closer distance produces finer fibres but also requires higher grinding force. The capacity per machine is largely determined by the size of the machine, as well as the motor speed 1500 rpm or 1800 rpm.
174:-method, the defibrator-method (also known as the Asplund-method) uses pressurised steam to soften the wood chips, then grinding discs to pull the wood fibres apart. This grinding unit is what Asplund called the defibrator. It became the key product of his company,
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202:, Arne Johan Arthur Asplund, "Method of manufacture of pulp", issued 1935-07-23
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filed a patent on a method to defibrate wood chips. As opposed to the
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56:. Unsourced material may be challenged and removed.
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136:refiner in which the pulp material, such as
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178:. The Defibrator trademark is now held by
116:Learn how and when to remove this message
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54:adding citations to reliable sources
1096:. You can help Knowledge (XXG) by
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140:, is ground in an environment of
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41:needs additional citations for
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877:Environmental impact of paper
16:Machine for refining fibres
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824:Surface chemistry of paper
327:(Zuo Bo/Tso Po/Tso Tzǔ-yi)
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134:thermo mechanical pulping
356:Friedrich Gottlob Keller
19:Not to be confused with
1148:Pulp and paper industry
1092:This tool article is a
872:Elemental chlorine free
829:Units of paper quantity
852:Bleaching of wood pulp
771:Corrugated fiberboard
528:Electrical insulation
381:Thomas Francis Carter
200:US patent 2008892
50:improve this article
219:"Defibrator system"
149:. The size of the
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801:Specifications
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176:AB Defibrator
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67: –
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61:Find sources:
55:
51:
45:
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39:This article
37:
33:
28:
27:
22:
21:defibrillator
1098:expanding it
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1076:
1003:Papier-mâché
998:Paper towels
917:Soda pulping
834:Wet strength
635:Photographic
508:Cotton (rag)
481:Construction
226:. Retrieved
222:
213:
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168:Arne Asplund
162:In 1931 the
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112:
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93:
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72:
65:"Defibrator"
60:
48:Please help
43:verification
40:
1143:Papermaking
1033:Paper money
993:Lined paper
912:Papermaking
845:and process
843:Manufacture
819:Paper sizes
548:Greaseproof
533:Genkō yōshi
386:Dard Hunter
318:Originators
286:Papermaking
1153:Tool stubs
1137:Categories
970:Paper mill
897:Organosolv
776:Fiber crop
766:China clay
725:Waterproof
625:Paperboard
503:Correction
496:Carbonless
344:Developers
186:References
147:wood fibre
138:wood chips
130:defibrator
76:newspapers
1023:Notebooks
1008:Cardboard
791:Wood pulp
759:Materials
735:Wood-free
710:Wallpaper
705:Tree-free
645:Red rosin
630:Parchment
615:Onionskin
610:Newsprint
471:Cartridge
466:Cardstock
461:Cardboard
411:Acid-free
166:engineer
1056:Category
1013:Clothing
931:Industry
867:Deinking
857:Calender
814:Grammage
700:Transfer
665:Security
538:Glassine
441:Blotting
416:Air-laid
374:Scholars
172:Masonite
145:produce
1066:Commons
1018:Tissues
809:Density
786:Papyrus
745:Writing
695:Tracing
685:Thermal
660:Scritta
655:Rolling
620:Origami
583:Butcher
518:Display
486:Contact
451:Bristol
426:Asphalt
331:Damjing
325:Cai Lun
296:History
228:6 April
164:Swedish
158:History
151:refined
90:scholar
948:Europe
943:Canada
690:Tissue
600:Manila
573:Korean
568:Ingres
563:Inkjet
476:Coated
456:Carbon
431:Banana
223:Valmet
206:
180:Valmet
92:
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78:
71:
63:
958:Japan
953:India
720:Wasli
715:Washi
675:Stone
605:Mummy
595:Lokta
578:Kraft
558:India
543:Graph
513:Crêpe
436:Bible
421:Amate
404:Types
271:Paper
142:steam
132:is a
97:JSTOR
83:books
1094:stub
986:Uses
975:List
750:Xuan
740:Wove
670:Seed
650:Rice
590:Laid
553:Hemp
491:Copy
446:Bond
230:2016
128:The
69:news
730:Wax
680:Tar
52:by
1139::
523:Dó
284:/
221:.
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263:e
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232:.
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113:(
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104:(
94:·
87:·
80:·
73:·
46:.
23:.
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