Kwh Mirka Ltd

Mirka Ltd.

Mirka Oy

Upm-Kymmene Corporation

Oy Kwh Mirka Ab

Kwh Mirka Ab

Hans Hede

Mats Sundell

Göran Höglund

Jan Grön

Nicolas Schumacher

Niina Kyynäräinen

Markus Kass

Goran Hoglund

Beatriz Meana-Esteban

Antti Laukkanen

Stefan Lindvall

Christer Kavander

Beatriz Esteban

Tomas Sjöberg

Maria Sundqvist

Niina Kyynarainen

Jan Gron

Niina KYYNARÄINEN

Jan GRÖN

Göran HÖGLUND

A method of abrading the surface of a workpiece is disclosed. The method includes providing a workpiece, an abrading apparatus with a backing pad configured to receive an abrading plate, an abrading plate attachable to the backing pad and a slurry including abrasive grains; attaching the abrading plate to the backing pad; providing the slurry including abrasive grains between the abrading plate and the surface of the workpiece; and operating the abrading apparatus to abrade the surface of the workpiece. Therein, the abrading plate includes a workpiece-facing layer, which workpiece-facing layer faces the surface of the workpiece and includes a metal or a polymer, and the abrasive grains have a hardness on the Mohs scale of greater than 5.

Abrading with an abrading plate

An abrasive belt is provided which comprises a textile fabric being formed of interconnected yarns, and a coherent abrasive area formed on one side of the textile fabric, wherein the abrasive belt further comprises a plurality of regularly distributed openings in the form of through holes. The abrasive belt allows for a homogenous distribution of the abrasive material and thus an even sanding finish as well as for an appropriate dust removal and appropriate mechanical properties.

Abrasive belt grinding product

A method for producing a groove pattern on a cylinder surface includes providing an abrasive module, including an abrasive mesh article and collector block, providing a patterning head, which including the abrasive module and pressing actuator, pressing the abrasive module against the cylinder surface by using the actuator, forming a plurality of grooves on the cylinder surface by causing relative motion between the abrasive module and cylinder surface, and drawing gas through the abrasive mesh article to collect particles released from the cylinder surface. The abrasive mesh article includes a plurality of abrasive grains bonded to a flexible mesh backing, defining openings. The collector block has a curved supporting surface defining openings. The abrasive mesh article is attached to the curved supporting surface by a releasable fastening system. The openings of the flexible mesh backing are in communication with the openings of the collector block via the releasable fastening system.

Method and apparatus for forming a groove pattern on a cylindrical surface

A polishing pad for polishing a surface, material for a polishing pad and a method for manufacturing material for a polishing pad. A polishing pad has a backing layer and a polishing layer made of sheep wool fibres fixed onto a surface of the backing layer, wherein the polishing layer has loops made of sheep wool fibres.

Polishing pad and material and manufacturing method for such

A method of manufacturing a flexible grinding product comprises the steps: a) preparing an open cloth of knitted or woven fabric; b) applying a coating to one surface of the cloth, wherein the coated surface of the cloth has one or more flat portions; c) applying a grinding agent to the coated surface of the cloth. Further, a flexible grinding product has an open cloth, wherein a surface of the cloth is provided with a coating such that the coated surface has one or more flat areas which are at least partially provided with a grinding agent.

Flexible grinding product with flattened surface and method for manufacturing the same

Abrasive material

The invention relates to obtaining an abrasive product comprising a backing layer and an abrasive layer, wherein the backing layer comprises propylene homopolymer or copolymer.

Method to provide an abrasive product and abrasive products thereof

The invention relates to obtaining an abrasive product comprising a surface with multiple abrasive zones supported by a backing layer. The abrasive zone are surrounded by interconnected channel portions comprising first channel portions with a first transverse dimension tdand second channel portions with a second transverse dimension tdlarger than the first transverse dimension td

Method to provide an abrasive product surface and abrasive products thereof

Composite body comprises nanofibrillar cellulose (NFC) together with abrasive particles (AP). The nanofibrillar cellulose forms a 3-dimensional connecting network for the abrasive particles (AP). The abrasive particles have a hardness above 7 on Mohs scale. The composite body is used for grinding, polishing or cutting.

Composite body and method of manufacturing it

Machine polishing pad

Abrasive disc base

Growing community of inventors

Vörå, Finland

Hans Hede