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:
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.
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.