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WO1991006398A1 - Bande abrasive - Google Patents

Bande abrasive Download PDF

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Publication number
WO1991006398A1
WO1991006398A1 PCT/DK1990/000285 DK9000285W WO9106398A1 WO 1991006398 A1 WO1991006398 A1 WO 1991006398A1 DK 9000285 W DK9000285 W DK 9000285W WO 9106398 A1 WO9106398 A1 WO 9106398A1
Authority
WO
WIPO (PCT)
Prior art keywords
belt
grinding
grinding belt
base part
wire netting
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.)
Ceased
Application number
PCT/DK1990/000285
Other languages
English (en)
Inventor
Rolf Barman-Jensen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1991006398A1 publication Critical patent/WO1991006398A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/02—Backings, e.g. foils, webs, mesh fabrics
    • 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

Definitions

  • the invention concerns a grinding belt to be used for grinding soft or semi-hard materials, e.g. raw materials for shoes, and comprising a through-going, band-shaped base-part bearing abrasive particles on one side. It is about a grinding belt of the type which sits stretched out as an endless band around one or more runners or driving wheels. It is not necessarily a question of the driving wheels being in direct contact with the abrasive particles; a binding agent or an intermediate layer can form the con ⁇ nection between particles and base part.
  • the grinding belts for semi-hard materials known hitherto have mainly consisted of sandpaper belts which are cheap to purchase, but have a short life. Hitherto it has been avoided to apply metal belts or band steel as a base material for manual grinding operations, as the band, in case it breaks during the working operation, makes out a great danger for the operator.
  • the purpose of the invention is to provide a grinding belt for relatively soft materials which has a considerably longer life and therefore demands fewer exchanges than the known grinding belts, and which at the same time will not suddenly split during operation and become a safety risk to the surroundings.
  • this is obtained by a grinding belt where the base part comprises a wire netting of metal coated with abrasive particles by a soldering process.
  • the grinding belt as such will still be intact, and the operation can proceed or the operator has time enough to stop the machine and replace the grinding belt before a break down occurs.
  • a very strong grinding belt with a great abrasive capacity is obtained, with which materials with a great hardness can be ground or grated.
  • the soldering process can e.g. consist in a process of the known art applying a binding agent in the form of a copper alloy.
  • a grinding tool to be used for grinding and burring metallic materials which in the nature of the case possess a great hardness.
  • a grinding medium bearer for the tool can be made of metal wires which are coated with abrasive particles by electrolysis and next are woven to form a bearer of a grinding medium.
  • the particles can be of diamond, boron nitride or corundum and they are embedded into a hard-metallic layer by the electrolysis. As the belt is worn the particles are gradually laid free, which is of importance for obtaining a sufficient life for the grinding tool when relatively hard materials are ground.
  • the wires of the netting are made of stainless steel. Further carbide grains are preferred as abrasive particles as it has been mentioned in claim 3. In order to improve the grinding belt's running, wearing and friction characteristics the metal netting, as mentioned in claim 4, can be fitted with a non-metallic layer of material with adequate properties.
  • the non-metallic material layer can contain glass fibres, either in a special layer or mixed with a thermoplastic layer, by which the mechanical properties of the belt will be improved, e.g. by orientating the fibres in the longitudinal direction of the belt which implies an increased tensile stiffness and breaking strength of the belt.
  • a grinding belt 1 according to the invention is built up of a base part 2 with abrasive particles 3 and a bearing layer 4 which contains glass fibres 5 orientated in the longi ⁇ tudinal direction of the belt in a matrix of polyamide, which has a great wearability and an adequate friction co ⁇ efficient in proportion to the runners and drive wheels of steel on which the belt 1 is to run.
  • a bearing layer of glass-coated tape such as Scotch no. 365 TM, which has a layer of thermo-hardenmg gum-resin on one side for adherence onto the base part 2, is applicable.
  • the base part 2 is a woven net of wires of stainless steel and it is made by cutting it out of commercially available materials to form belts of the suitable lengths. After de- greasing, this belt is conducted through a production line where first its grinding surface 6 is coated with glue and next with wolfram carbide particles 3. After that glue is put on again and finally a soldering material, viz. a powdered copper solder consisting of nearly pure copper (99,9%).
  • the types of glue applied here can be various com ⁇ monly known and commercially available sorts, e.g. cyano acrylate glue. A faintly sticking glue of the brand ⁇ nniiffiixx T TMM,, aallssoo uusseedd eas a remedy within the textile in- dustry, is preferred.
  • the soldering takes place in a transition furnace, e.g. of the brand Remington TM which is known to the skilled in the art, where the belt passes various temperature zones in a protective gas, preferably hydrogen: a preheating zone, a soldering zone and a cooling zone.
  • a protective gas preferably hydrogen
  • the temperature is brought up to about 6oo°C in the course of five minutes and the soldering takes place during the passage of the soldering zone in five minutes at a tempera ⁇ ture between 1050 and 1150°C, preferably 1080°C.
  • the glue will decompose and vaporize, as it has only served to an interim fixation of the carbide grains and the powdered solder respectively.
  • the temperature is stepped down through four part- zzoonneess wwiitthh 5500 CC ppeerr pplortt--zzoonnee.. AAfftteerr ttlhis the belt is air- cooled down to the ambient temperature.
  • soldering method described above is a variant of soldering method of the known art and other copper- or nickel-based solders can be used; likewise soldering tem ⁇ peratures between 850 C and 1150 C are applicable.
  • the belt After the soldering the belt is cut into certain lengths with 45° cutting angle at the ends which are joined to form a continuous belt by overlapping and spot-welding the ends.
  • other known methods for joining the belt can be used, such as glueing or splicing the wire netting.
  • the base part 2 and the bearing layer 4 can be joined by glueing or, if the bearing layer 4 as described above main ⁇ ly consists of a thermoplastic, by heating the plastic and next joining the parts 2 and 4.
  • the attachment is performed by heating the joint of base part 2 and bearing layer 4 up to approx. 160 C.
  • the grinding belt ac ⁇ cording to the invention of course can be carried out otherwise than described here.
  • the glass fibres can be replaced by synthetic fibres.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L'invention se rapporte à une bande abrasive (1) qui comprend comme partie de base (2) une bande traversante en tissu à mailles métalliques, de préférence en acier inoxydable sur laquelle sont soudés des grains de carbure (3). On obtient ainsi une bande résistant à l'usure, qui est utilisable pour le meulage et le raclage de matériaux semi-durs, par exemple dans l'industrie de la chaussure, et qui ne risque pas de se rompre brusquement, ne mettant ainsi pas en danger le personnel qui travaille à la meuleuse, étant donné que les fils du tissu métallique ne se rompent ou ne se déchirent qu'un à un, ce qui donne à l'opérateur le temps d'arrêter la machine avant que la bande se casse. Pour améliorer les propriétés de frottement de la bande (1), la partie de base peut être munie d'une couche d'appui (4) en matériau non métallique. La couche d'appui (4) peut contenir des fibres de verre (5) pour conférer à la bande une plus grande rigidité à la rupture par traction.
PCT/DK1990/000285 1989-11-07 1990-11-07 Bande abrasive Ceased WO1991006398A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK5532/89 1989-11-07
DK553289A DK553289A (da) 1989-11-07 1989-11-07 Slibebaand

Publications (1)

Publication Number Publication Date
WO1991006398A1 true WO1991006398A1 (fr) 1991-05-16

Family

ID=8143253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1990/000285 Ceased WO1991006398A1 (fr) 1989-11-07 1990-11-07 Bande abrasive

Country Status (3)

Country Link
AU (1) AU6733590A (fr)
DK (1) DK553289A (fr)
WO (1) WO1991006398A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992012827A1 (fr) * 1991-01-25 1992-08-06 Carbide Tools International A/S Bande de sablage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339208A (en) * 1941-04-04 1944-01-11 Behr Manning Corp Flexible abrasive product
DE890612C (de) * 1941-07-30 1953-09-21 Paul Hopf Schleifkoerper fuer duenne Schnitte
US3860400A (en) * 1971-07-27 1975-01-14 Prowse Co Ltd D H Flexible abrasive coverings
US3868235A (en) * 1971-06-21 1975-02-25 Gerhard R Held Process for applying hard carbide particles upon a substrate
DE3236134A1 (de) * 1982-09-29 1984-03-29 KADIA-Diamant Maschinen- und Werkzeugfabrik O. Kopp GmbH & Co, 7440 Nürtingen Werkzeug zum schleifen bzw. entgraten von metallischen werkstuecken

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339208A (en) * 1941-04-04 1944-01-11 Behr Manning Corp Flexible abrasive product
DE890612C (de) * 1941-07-30 1953-09-21 Paul Hopf Schleifkoerper fuer duenne Schnitte
US3868235A (en) * 1971-06-21 1975-02-25 Gerhard R Held Process for applying hard carbide particles upon a substrate
US3860400A (en) * 1971-07-27 1975-01-14 Prowse Co Ltd D H Flexible abrasive coverings
DE3236134A1 (de) * 1982-09-29 1984-03-29 KADIA-Diamant Maschinen- und Werkzeugfabrik O. Kopp GmbH & Co, 7440 Nürtingen Werkzeug zum schleifen bzw. entgraten von metallischen werkstuecken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992012827A1 (fr) * 1991-01-25 1992-08-06 Carbide Tools International A/S Bande de sablage

Also Published As

Publication number Publication date
AU6733590A (en) 1991-05-31
DK553289A (da) 1991-05-08
DK553289D0 (da) 1989-11-07

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