The invention relates to a welding machine (2) for processing a metal workpiece (36) by means of laser welding. The welding machine (2) comprises a housing (4) comprising a bottom (6) provided with an opening (8) that is in communication with an exterior of the housing. The welding machine (2) further comprises a laser device (32) arranged inside of the housing (4) and adapted for pointing a laser beam through the opening (8). The welding machine (2) further comprises a support structure (34) operatively connected to the housing (4) for arranging the welding machine (2) in an operational position in abutment on top of the metal workpiece so that the opening (8) in the housing faces a top surface of the metal workpiece, wherein an area of the top surface is exposed for laser welding by means of the laser device (32) through the opening (8).
Method of adjusting and tracking an conveyor belt arranged around at least two rotatable drums, the belt having a direction of travel along its length and orthogonally an axis of the at least two drums, whereby the adjustment of the belt is made by displacing at least one of the drums sideways seen in the direction of travel of the belt and thus the belt so that the belt directly gets into a desired position. A conveyor belt tracking arrangement, the drums are arranged with their axles in a frame and at least one drum is arranged with its axle in a pivot frame and the pivot frame is in turn adjustably arranged in the frame, and movable by means of a drum moving force, which in turn makes the whole drum, with the belt, to move with the pivot frame around a pivot point provided in an orthogonal plane along the centre of the belt seen in the direction of the belt at a distance from the drum, so that the belt is directly moved to a desired position.
The invention relates to a method for surface treatment of a steel belt (1). The method comprises the steps of providing (100) the steel belt made of martensitic stainless steel, performing an electrochemical polishing (300) of a surface (9) of the steel belt and performing a subsequent heat treatment (500) of the steel belt, thereby forming a metal oxide layer (7) on the electrochemical polished surface (9) of the steel belt (1).
Method of adjusting and tracking an conveyor belt arranged around at least two rotatable drums, the belt having a direction of travel along its length and orthogonally an axis of the at least two drums, whereby the adjustment of the belt is made by displacing at least one of the drums sideways seen in the direction of travel of the belt and thus the belt so that the belt directly gets into a desired position. A conveyor belt tracking arrangement, the drums are arranged with their axles in a frame and at least one drum is arranged with its axle in a pivot frame and the pivot frame is in turn adjustably arranged in the frame, and movable by means of a drum moving force, which in turn makes the whole drum, with the belt, to move with the pivot frame around a pivot point provided in an orthogonal plane along the centre of the belt seen in the direction of the belt at a distance from the drum, so that the belt is directly moved to a desired position.
Method of adjusting and tracking an conveyor belt arranged around at least two rotatable drums, the belt having a direction of travel along its length and orthogonally an axis of the at least two drums, whereby the adjustment of the belt is made by displacing at least one of the drums sideways seen in the direction of travel of the belt and thus the belt so that the belt directly gets into a desired position. A conveyor belt tracking arrangement, the drums are arranged with their axles in a frame and at least one drum is arranged with its axle in a pivot frame and the pivot frame is in turn adjustably arranged in the frame, and movable by means of a drum moving force, which in turn makes the whole drum, with the belt, to move with the pivot frame around a pivot point provided in an orthogonal plane along the centre of the belt seen in the direction of the belt at a distance from the drum, so that the belt is directly moved to a desired position.
An apparatus for repairing a metal sheet and method of operating the same are provided. The apparatus includes: a base unit including: a frame and an attachment feature on the frame, a cutting unit removably attachable to the base unit to cut out a damaged portion of the metal sheet, and a welding unit removably attachable to the base unit. The cutting unit includes: a cutting arm including a cutting blade, and a motor for operating the cutting arm. The welding unit includes: a fixed platform, a weld movement motor for moving a moveable platform on the fixed platform, and a welding assembly, attached to the moveable platform, to automatically weld a replacement piece to the metal sheet. In operation, the frame is continuously attached to the metal sheet during cutting of the damaged portion and welding of the replacement piece, providing a stable and repeatable frame of reference.
B23K 37/00 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
B23K 28/02 - Combined welding or cutting procedures or apparatus
B23K 37/02 - Carriages for supporting the welding or cutting element
B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
An apparatus for repairing a metal sheet and method of operating the same are provided. The apparatus includes: a base unit including: a frame and an attachment feature on the frame, a cutting unit removably attachable to the base unit to cut out a damaged portion of the metal sheet, and a welding unit removably attachable to the base unit. The cutting unit includes: a cutting arm including a cutting blade, and a motor for operating the cutting arm. The welding unit includes: a fixed platform, a weld movement motor for moving a moveable platform on the fixed platform, and a welding assembly, attached to the moveable platform, to automatically weld a replacement piece to the metal sheet. In operation, the frame is continuously attached to the metal sheet during cutting of the damaged portion and welding of the replacement piece, providing a stable and repeatable frame of reference.
B23K 28/02 - Combined welding or cutting procedures or apparatus
B23K 37/02 - Carriages for supporting the welding or cutting element
B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
8.
APPARATUS FOR REPAIRING A METAL SHEET METHOD OF OPERATING THE SAME, AND METHOD OF REPAIRING A METAL SHEET
An apparatus for repairing a metal sheet and method of operating the same are provided. The apparatus includes: a base unit including: a frame and an attachment feature on the frame, a cutting unit removably attachable to the base unit to cut out a damaged portion of the metal sheet, and a welding unit removably attachable to the base unit. The cutting unit includes: a cutting arm including a cutting blade, and a motor for operating the cutting arm. The welding unit includes: a fixed platform, a weld movement motor for moving a moveable platform on the fixed platform, and a welding assembly, attached to the moveable platform, to automatically weld a replacement piece to the metal sheet. In operation, the frame is continuously attached to the metal sheet during cutting of the damaged portion and welding of the replacement piece, providing a stable and repeatable frame of reference.
B23K 28/02 - Combined welding or cutting procedures or apparatus
B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
B23K 37/02 - Carriages for supporting the welding or cutting element
9.
A PAPER OR PAPERBOARD PRODUCT COMPRISING AT LEAST ONE PLY CONTAINING HIGH YIELD PULP AND ITS PRODUCTION METHOD
A method of producing a paper or paperboard product having at least one ply comprising high yield pulp (HYP), comprising the steps of: providing a furnish comprising at least 50% of high yield pulp (HYP) of a total pulp content in said furnish, said high yield pulp being produced with a wood yield above 85%; dewatering the furnish to form a moist web and pressing said moist web to a dry solids content of at least 4070%; and densifying the moist web to a density above 600 kg/m3 in a press nip of a paper machine at a temperature above a softening temperature of water-saturated lignin comprised in said high yield pulp to provide a paper or paperboard product, containing at least 30% high yield pulp (HYP) of a total pulp content of said product.
Sheet casting apparatus and a method of sheet casting from a liquid or slurry. The casting apparatus comprises a trough to contain a fluid or slurry and a casting knife to guide and control the fluid flow onto a substrate i.e., a belt or drum. At least one first and at least one second adjuster are connected to the knife to adjust selectively a shape profile and a position of at least parts of the knife relative to the substrate.
B05C 3/18 - Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material only one side of the work coming into contact with the liquid or other fluent material
B05C 11/04 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surfaceControl of the thickness of a coating with blades
B29C 47/02 - incorporating preformed parts or layers, e.g. extrusion moulding around inserts or for coating articles
A doctoring apparatus has a flexible doctor blade advanced longitudinally across a surface being doctored. The doctor blade is feed in a continuous length from a storage cartridge and sequentially supported in a blade holder to apply the blade to a moving surface to be doctored. One or both of a pneumatic blade advancing device and a pneumatically operated clamping system are opened and closed in timed sequence with reciprocation of the blade holder longitudinally shifting the doctor blade in a selected direction across the doctored surface. The pneumatic blade advancing device includes an idler roller and a powered roller that co-operate to indexingly advance the doctor blade along the blade path. The clamping system includes a blade cutter to cut the doctor blade and that drives the cut off end of the doctor blade into a discard container.
B05C 11/02 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surfaceControl of the thickness of a coating
B05C 11/04 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surfaceControl of the thickness of a coating with blades
A24B 3/14 - Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakesForms of such products
Power operated cutting and welding tools for use in removing damaged areas from steel belts and producing replacement blanks for repair of same
13.
SYSTEM FOR DRY CLEANING OF FOOD PROCESSING EQUIPMENT UTILIZING SALT PARTICLES OF SODIUM CARBONATE, SODIUM BICARBONATE AND CALCIUM PHOSPHATE AND METHODS OF DRY CLEANING USING THE SAME
Cleaning systems for food-related equipment and surfaces, such as, but not limited to, a steel belt baking surface, has a translatable and pivotable arm to position a discharge manifold over a surface to be cleaned. The arm has supply and return lines for a salt composition that includes one or more of sodium carbonate, sodium bicarbonate and calcium phosphate and does not include a liquid component. The salt impinges the surface and kinetically and chemically cleans it. Discharged salt is collected by drawing the salt through the return line and to a filter unit. The translatable and pivotable arm can be composed of telescoping sections forming a telescoping conduit for the return line or can be composed of non-telescoping sections that form the return line. The cleaning system operates in an open loop mode.
