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Welding neck flange

A technology for welding flanges and flanges, which is applied to flange connections, pipes/pipe joints/fittings, passing components, etc. It can solve problems such as deformation, low flange strength, and leakage of pipe fittings to achieve high strength and improve service life. , to avoid the effect of leakage

Inactive Publication Date: 2015-01-14
JIANGYIN DONGSHENG FLANGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The connection of traditional pipe fittings is welded. Due to the low strength of the flange, deformation occurs during welding, which causes leakage of the pipe fittings. Therefore, it is particularly important to find a butt welding flange with higher strength.

Method used

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  • Welding neck flange

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Embodiment Construction

[0017] See figure 1 , The present invention relates to a butt welding flange, which includes a flange body, the flange body includes a central disc portion 1, an upper first connecting portion 3 and a lower second connecting portion 4, the round The disc 1 is provided with a plurality of mounting holes 2 in the circumferential direction. The center of the flange body is provided with a pipe hole 5 passing through the disc 1, the first connecting part 3 and the second connecting part 4 in sequence. The outer wall of a connecting portion 3 includes a first oblique section 3.1, a straight section 3.2, and a second oblique section 3.3 from top to bottom. The outer wall of the second connecting portion 4 is a straight section. The slope of the first oblique section 3.1 Less than the slope of the second inclined section 3.3, the height of the second inclined section 3.3 occupies 60-70% of the height of the first connecting portion 3. The flange body is made of titanium steel materia...

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PUM

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Abstract

The invention relates to a welding neck flange. The welding neck flange comprises a flange body, and the flange body comprises a disc part (1), a first connecting part (3) and a second connecting part (4). The disc part (1) is arranged in the middle of the flange body, the first connecting part (3) is arranged on the upper portion of the flange body, and the second connecting part (4) is arranged on the lower portion of the flange body. Multiple installation holes (2) are formed circumferentially in the disc part (1), and a pipeline hole (5) is formed in the center of the flange body. The welding neck flange is characterized in that a first inclined section (3.1), a straight section (3.2) and a second inclined section (3.3) are sequentially arranged on the outer wall of the first connecting part (3) from top to bottom, the outer wall of the second connecting part (4) is a straight line section, the flange body is made of titanium steel, and a nickel-plated layer is arranged on the outer surface of the flange body. Due to the special structural design, the welding neck flange has the advantage of being high in strength.

Description

Technical field [0001] The invention relates to a flange, in particular to a butt welding flange, and belongs to the technical field of pipe fittings. Background technique [0002] Flanges are also called flanges or flanges. The flange is a part that connects the pipe and the pipe to each other, and is connected to the pipe end. There are holes on the flanges and bolts make the two flanges tightly connected. The flanges are sealed with gaskets. [0003] The connection of traditional pipe fittings is welded. Due to the low strength of the flange, deformation occurs during welding, causing leakage of the pipe fittings. Therefore, it is particularly important to seek a butt-welded flange with higher strength. Summary of the invention [0004] The purpose of the present invention is to overcome the above shortcomings and provide a butt welding flange with higher strength. [0005] The purpose of the present invention is achieved as follows: [0006] A butt welding flange includes a fla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L23/026F16L23/032
CPCF16L23/026F16L23/032
Inventor 徐东升
Owner JIANGYIN DONGSHENG FLANGE