Pulsedeon Oy

Metso Minerals, Inc.

Metso Sweden Ab

Metso Minerals (wear Protection) Ab

Metso Powdermet Oy

Rauma Materials Technology Oy

Metso Paper Inc.

Metso Finland Oy

Jari Liimatainen

Ville Kekkonen

Pekka Siitonen

Lars Grönvall

Mikko Kaipiainen

Tage Möller

Klas-Göran Eriksson

Erkki Kiiski

Fergus Clarke

Jussi Hellman

Aleksey Zolotukhin

Sture Persson

Hannu Martikainen

Jarkko Piirto

Lars Groenvall

The present invention introduces a scanning arrangement and a method suitable for coating processes applying laser ablation. The arrangement is suited to prolonged, industrial processes. The arrangement comprises a target, which has an annular form. The laser beam direction is controlled by a rotating mirror locating along the center axis of the annular target. The scanning line will rotate circularly along the inner target surface when the mirror rotates. The focal point of the laser beams may be arranged to locate on the inner target surface to ensure a constant spot size. A ring-formed, a cylinder-shaped or a cut conical-shaped target may be used. The inner surface of the target may thus be tapered in order to control the release direction of the ablated material towards a substrate to be coated.

Lighthouse scanner with a rotating mirror and a circular ring target

The present invention describes a method for coating porous separator films of lithium batteries and a coated separator film produced as a result of the respective manufacturing method. Laser ablation is used in the method for detaching particles from the target, and the particle flux vaporised by laser pulses is directed to the base material to be coated, to which the material is attached. The so-called roll-to-roll principle can be used in the method, in which the base material to be coated is directed from one roll to a second roll, and the coating occurs in the area between these rolls. In addition, rotating mirrors and a telecentric lens can be used for aligning the laser pulses as a rectilinear pulse front before guiding onto the target material.

Method for coating separator films of lithium batteries and a coated separator film

The present invention presents a method for manufacturing tight and porous coatings from metallic, ceramic and organic materials by utilizing composite targets manufactured of two or several materials, which are disintegrated, and producing in this way material flow towards the object to be coated by utilizing short laser pulses directed to the target material. With the method it is possible to produce material structures in a controlled manner, minimizing the needed energy of the laser pulses and heat generation, and with the method it is also possible to improve productivity by correctly choosing the components for the target material.

Method for manufacturing thin films by utilizing short laser pulses and composite target materials

The disclosure relates to an elongated insert member for a grinding roll for heavy wear operation. The insert member includes a core of a first material having a first hardness, the core having an extension in the longitudinal direction of the insert member, and a body of a second material having a second hardness, the body enclosing the core. The first hardness is greater than the second hardness. The disclosure also relates to a cassette and a segment for a grinding roll, a grinding roll and a roll machine.

Bimaterial elongated insert member for a grinding roll

The invention relates to an elongated insert member for a grinding roll for heavy wear operation. The insert member includes a core of a first material having a first hardness, said core having an extension in the longitudinal direction of said insert member, and a body of a second material having a second hardness, said body enclosing said core. The first hardness is greater than the second hardness. The invention also relates to a cassette and a segment for a grinding roll, a grinding roll and a roll machine.

A method for manufacturing a multimaterial component or construction, whereby a body is formed in said method of a basic material and at least one piece formed of a wear resistant material being joined to said body at a temperature of not more than 80% of the lowest melting temperature of the materials to be joined. The invention also comprises the use of a multimaterial component or construction manufactured by means of said method.

Method for manufacturing a multimaterial component or construction

A lifting element for a drum of a grinding mill to be used for grinding of ores and minerals. The lifting element is attachable to a frame of the drum and extending in the longitudinal direction of the drum. The lifting element includes a flexible body and a wear protection element located in the leading edge of the body with respect to the direction of rotation of the drum. The wear protection element includes at least two different parts manufactured of different materials having toughness and hardness different from each other.

Composite lifting element of a grinding mill

A method for manufacturing cast components, in which method the cast mold and/or macroscopic inserts to be placed either totally or partly inside thereof are left totally or partly as a part of the final component to be used, after the casting the piece is further treated with temperature and/or pressure in order to improve the compactness of both the cast materials and the materials acting as inserts and to improve the bond between the cast material and the solid material attached thereto, and the portion of the solid or partly solid material (inserts) to be placed into the cast mold and remaining in the final component, inclusive the portion of the mold eventually remaining in the final component, of the weight of the total component is more than 3 percent by weight.

Method for manufacturing cast components

The invention relates to the manufacture of paper machine roll shells of stainless steel. According to the invention, powder is made of molten steel by gas-atomizing, a roll shell preform is made of the powder, and the roll shell preform is machined to form a roll shell. The main advantage of the rolls shells according to the invention is their good corrosion fatigue resistance.

Growing community of inventors

Tampere, Finland

Jari Liimatainen