Abstract:
The invention refers to the method for regenerating and increasing durability of a mill roll, which is characterized in that lateral working surfaces (2) of a mill roll (1), having the width of 20 mm to 400 mm, are covered preferably by means of the laser cladding with a layer of metallic material (3) having the thickness of 0.1 to 4.0 mm, preferably 1.5 to 2.0 mm.
Abstract:
The present invention refers to a method of cladding a metallic coat on a metal element. According to the method a metal element is clad, favorably by laser welding, with at least two layers of metallic material, wherein the first layer has a thickness no greater than 3.0 mm, favorably 0.5 mm to 1,5 mm, and next layers have thicknesses of at least 20% by weight of the thickness of the first layer.
Abstract:
The present invention refers to a method of laser cladding of a metallic coat on a metal element. The method consists in hardening the metal surface, favorably by laser, and then laser cladding of at least one layer of metallic material.
Abstract:
The invention applies to the railroad wheel with wear resistant flange (3) or tire or rim, comprising the surfaces, which can touch the rail during travelling. The essence of the invention consists therein, that on the circumferential inner surface (4) of flange (3) of the wheel (2) is placed in durable manner an anti-abrasion layer (1).
Abstract:
The invention refers to a method for producing a rail having a head of the rail, a foot of the rail, and a web of the rail that connects the head of the rail with the foot of the rail, characterised in that the head of the rail (2) and/or the foot of the rail (3) and/or a single web of the rail (1 ) or a single web of the rail (1) that connects the head of the rail (2) with the foot of the rail (3) is rolled in such a way that in the cross-sectional plane of the rail there is achieved a length of the single web of the rail (1 ) greater than the distance between facing each other the surface (14) of the head of the rail (2) and the surface (15) of the foot of the rail (3), preferably greater than the minimum distance between facing each other the surface (14) of the head of the rail (2 ) and the surface (15) of the foot of the rail (3).
Abstract:
A method of applying a protective cladding, particularly to gas-tight membranes of energy boilers involves coupling of two gas-tight membranes (2) together, and then soaking a pair of gas-tight membranes (2) coupled together at 300°C to 800°C, favorably at around 700°C; afterwards, the membrane (2) surface where a cladding (1) is to be applied is cleaned, a pair of gas-tight membranes (2) coupled together is mounted on a positioner and then preheated up to 80°C to 600°C, favorably to around 300°C-450°C, and then the cleaned and preheated surface of a pair of gas- tight membranes (2) coupled together is covered with a protective cladding (1), wherein a protective cladding is applied at a thickness of 0.1 mm to 3.00 mm, favorably around 0.6 mm, and then the entire pair of gas-tight membranes (2) coupled together with a cladding (2) is finally soaked at 300°C to 800°C, favorably at around 700°C, and the set temperature is maintained for 10 minutes to 600 minutes, favorably for 15 minutes to 30 minutes, and finally, gas-tight membranes (2) with a cladding are uncoupled.