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AssigneeZhejiang Sanhua Intelligent Controls Co., Ltd.
InventorsYiqi Wang, Xinyu Zhuang, Shengli Zhang, Yong Pan, Zhijun Zhang, Feng Chen
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A pipe body, wherein the pipe body (10) has a welded portion (11) at both ends of the pipe body, aligned in a widthwise direction of the pipe body (10). The thickness of the welded portion (11) decreases gradually from the inside to the outside of the pipe, and an outer end of the welded portion (11) is located at a center portion of the pipe body (10) in a thickness direction. The configuration of the welding structure enhances the strength of the welded portion of the pipe, so that the pipe will not crack easily when it is reworked by flaring or bending, thus having high reworkability. In addition, a pipe (100) made of the pipe body (10) and a method of making the pipe (100) are disclosed.
A pipe, wherein the pipe is formed by welding and bending a pipe body, a weld seam of the pipe is in an X-shape, wherein two ends of the pipe body are both provided with a welded portion, a thickness of the welded portion decreases gradually from an inside to an outside of the pipe body in a direction along a width of the pipe body, and an outer end of the welded portion is located at a center portion in a direction along a thickness of the pipe body, wherein a peripheral face of the welded portion is formed by two or more straight-line segments connected in sequence, wherein a predetermined distance is provided between faces of outer ends of two welded portions when the pipe body is bent, and the predetermined distance is 1 to 3 times the thickness of the pipe body.
A manufacturing method of a pipe, comprising following steps:
Dependencies are inferred from the claim text.