SU1475490A3 - Defibrer for mechanical pulp production - Google Patents

Defibrer for mechanical pulp production Download PDF

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Publication number
SU1475490A3
SU1475490A3 SU843801009A SU3801009A SU1475490A3 SU 1475490 A3 SU1475490 A3 SU 1475490A3 SU 843801009 A SU843801009 A SU 843801009A SU 3801009 A SU3801009 A SU 3801009A SU 1475490 A3 SU1475490 A3 SU 1475490A3
Authority
SU
USSR - Soviet Union
Prior art keywords
mechanical pulp
defibrer
metal powder
pulp production
binder
Prior art date
Application number
SU843801009A
Other languages
Russian (ru)
Inventor
Аарио Матти
Хайккала Пекка
Саркеля Раймо
Original Assignee
Ой Тампелла Аб (Фирма)
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 Ой Тампелла Аб (Фирма) filed Critical Ой Тампелла Аб (Фирма)
Application granted granted Critical
Publication of SU1475490A3 publication Critical patent/SU1475490A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1409—Abrasive particles per se
    • C09K3/1418—Abrasive particles per se obtained by division of a mass agglomerated by sintering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills

Abstract

A grinding means according to the invention in the form of a homogenous grindstone, having an abrasive or grinding layer fixed to the surface of a stone body. The hard, abrasive fragments (grinding fragments) are joined together by means of a sintered metal.

Description

Изобретение относится к целлюлозно-бумажной промышленности, в частности к цефибрерному средству для ‘ производства механической древесной массы. 3 The invention relates to the pulp and paper industry, in particular to a cefibre agent for the production of mechanical pulp. 3

Цель изобретения - повышение прочности и надежности в работе.The purpose of the invention is to increase the strength and reliability in operation.

На чертеже изображено предлагаемое средство.The drawing shows the proposed tool.

Абразивные включения 1 связаны между собой путем :спекания вокруг них матрицы 2 из металлических частиц. При спекании в матрице остается определенное количество (0-20%) порЗ.иAbrasive inclusions 1 are interconnected by: sintering around them matrix 2 of metal particles. During sintering, a certain amount (0-20%) of porZ. remains in the matrix.

В процессе работы абразивные включения 1 дефибрерного средства, контактируя с поверхностью древесины 4, подвергают ее истиранию. Направление истирания дефибрерного средства обоз~20 начено стрелкой. Абразивные включения 1, частично проникая в древесину, сжимают ее, в результате чего волокна 5 извлекаются из древесины при измельчении. - 25In the process, the abrasive inclusion 1 defibre means, in contact with the surface of the wood 4, subjected to abrasion. The direction of abrasion of the defibre agent means ~ 20 is started by the arrow. Abrasive inclusions 1, partially penetrating into the wood, compress it, as a result of which the fibers 5 are extracted from the wood during grinding. - 25

Claims (3)

Формула изобретенияClaim 1. Дефибрерное средство для производства механической древесной массы, состоящее из абразивных зерен окиси алюминия, карбида вольфрама, карбида кремния или других подобных соединений и связующего с твердостью, меньшей твердости абразивных зерен, для соединения : их между собой, отличающееся тем, что, с целью повышения прочности и надежности в работе, связующее выполнено в виде спеченного металлического порошка..1. A defibrillator for the production of mechanical pulp, consisting of abrasive grains of aluminum oxide, tungsten carbide, silicon carbide or other similar compounds and a binder with a hardness lower than the hardness of the abrasive grains, for the connection: between them, characterized in that, for the purpose increase strength and reliability in operation, the binder is made in the form of sintered metal powder .. 2. Средство по п.1, отличающееся тем, что в качестве металлического порошка используют металл, стойкий к коррозии.2. The tool according to claim 1, characterized in that the metal powder is corrosion resistant metal. 3. Средство поп.1, отличаю· щ е е с я тем, что в качестве металлического порошка используют порошок Меди или медного сплава.3. Means pop. 1, distinguished by the fact that as a metal powder, copper or copper alloy powder is used.
SU843801009A 1983-10-10 1984-10-09 Defibrer for mechanical pulp production SU1475490A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI833665A FI68268B (en) 1983-10-10 1983-10-10 SLIPORGAN FOER FRAMSTAELLNING AV MEKANISK TRAEMASSA

Publications (1)

Publication Number Publication Date
SU1475490A3 true SU1475490A3 (en) 1989-04-23

Family

ID=8517881

Family Applications (1)

Application Number Title Priority Date Filing Date
SU843801009A SU1475490A3 (en) 1983-10-10 1984-10-09 Defibrer for mechanical pulp production

Country Status (5)

Country Link
CA (1) CA1267293A (en)
DE (1) DE3436316A1 (en)
FI (1) FI68268B (en)
SE (1) SE8404871L (en)
SU (1) SU1475490A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI80087C (en) * 1986-05-13 1990-04-10 Yhtyneet Paperitehtaat Oy MALBLOCK VID EN RAFFINOER.
WO2007125152A1 (en) 2006-04-28 2007-11-08 Metso Paper, Inc. Device and method for defibration of wood

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Патент US № 2769286, кл. 51-206.4, 1956. *

Also Published As

Publication number Publication date
FI833665A0 (en) 1983-10-10
CA1267293A (en) 1990-04-03
SE8404871L (en) 1985-04-11
DE3436316A1 (en) 1985-04-25
SE8404871D0 (en) 1984-09-28
FI68268B (en) 1985-04-30

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