Sungwoo Hitech Co., Ltd.

Mun Jong Song

Mun Yong Lee

Byung Hag Park

Disclosed is a pressure vessel including an upper liner portion including a top insertion-injection molded and coupled to a peripheral part of a boss portion in which a through hole extends in a vertical direction, extending downward cylindrically from the top to form a first accommodation space accommodating a fluid and having an open lower center, and including a first shape-matching portion in which a first overlapped-coupled surface is formed on a bottom end edge to be perpendicular to a laser emission direction and extends in a vertical direction along a circumferential direction and a lower liner portion having a top end edge coupled to the bottom end edge of the upper liner portion.

Pressure vessel

The present invention relates to a joining method, and more specifically relates to a method for joining different kinds of plates that joins at least two plate members of which materials thereof are different from each other through laser welding. For this, a method for joining different kinds of plates according to an exemplary embodiment of the present invention may include disposing a first plate and a second plate, materials of which are different from each other, such that they are overlapped with each other, and joining the first plate and the second plate by irradiating a laser beam at a predetermined inclination angle and in a regular pattern onto the overlapped portion of the two plates.

Growing community of inventors

Yangsan-si, South Korea

Mun Jong Song