FIELD: technological processes.
SUBSTANCE: invention relates to a method for creating a control structure in a pressure relief device using a laser. Said device is made with a rupture element containing segments of the control structure and a pair of opposite faces, a central portion and an external flange portion. This method includes separating at least a portion of one of said faces of the pressure relief device into a plurality of tiles, wherein at least two of the above-mentioned tiles correspond to the areas of said one face in which the control structure segments are to be located. It is followed by passing a laser beam generated by a scanning laser over the area of one said face corresponding to one of said tiles, with the formation of one of said control structure segments and shifting the relative position of said laser and said pressure-relief device. Then, the above-mentioned laser beam is passed over the area of one said face corresponding to another of the above-mentioned tiles, with the formation of another of said control structure segments. According to the second variant, said scanning laser has a field of view that is smaller than the distance between the two most distant points on said control structure. Due to the passage of the scanning laser beam, a control structure is formed between adjacent segments of the intermediate region corresponding to the border between adjacent tiles and having a material thickness of the pressure-relief device, which is greater than the thickness of this material of the pressure relief device at the deepest point of any of the mentioned adjacent segments of the control structure.
EFFECT: proposed is the creation of laser-generated structures in pressure relief devices using the tiling method.
20 cl, 9 dwg
