Manufacturing method of weld defect testing plate for austenitic stainless steel having crack defects

A technology of austenitic stainless steel and manufacturing method, which is applied in the direction of manufacturing tools, welding equipment, welding accessories, etc., to achieve the effect of high reliability and simple and easy method

Active Publication Date: 2020-01-24
WUHAN YIYE STEEL STRUCTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since there is no formal PAUT testing standard in China, it is necessary to make a defect test plate to conduct a comparative test of different nondestructive testing methods to determine the PAUT testing process of austenitic stainless steel

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  • Manufacturing method of weld defect testing plate for austenitic stainless steel having crack defects
  • Manufacturing method of weld defect testing plate for austenitic stainless steel having crack defects
  • Manufacturing method of weld defect testing plate for austenitic stainless steel having crack defects

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Embodiment Construction

[0028] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be cons...

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Abstract

The invention discloses a manufacturing method of a weld defect testing plate for austenitic stainless steel having crack defects. The manufacturing method comprises the following steps of: fitting upone pair of steel plate welding parts after chamfering to-be-welded positions of the steel plate welding parts; carrying out backing welding by adopting gas tungsten arc welding; subsequently carrying out filling welding by adopting shielded metal arc welding; manufacturing a slot, placing a zinc alloy wire inside the slot, carrying out filling welding on the slot by adopting gas tungsten arc welding to make sure that the filling wire and the zinc alloy wire are molten and fully fill the slot, carrying out spot-welding remelting on a fully-filled welding seam by adopting argon tungsten-arc welding, and forming cracks in a remolten spot-welding seam containing zinc alloy in a cooling process; filling the upper portion of a crack defect with a layer of welding seam by adopting gas metal arcwelding; and carrying out filling welding on a weld bead at another welding layer by adopting shielded metal arc welding. The manufacturing method of the weld defect testing plate for the austeniticstainless steel having crack defects, disclosed by the invention, can realize manufacturing of crack defects at any position in the welding seam and realizes control on characteristics such as quantity, length, direction and depth of the cracks.

Description

technical field [0001] The invention relates to the technical field of a method for manufacturing a defect test plate, in particular to a method for manufacturing an austenitic stainless steel weld defect test plate with crack defects. Background technique [0002] At present, the commonly used non-destructive testing methods for austenitic stainless steel in engineering include radiographic testing (RT), ultrasonic testing (UT), and penetrant testing (PT), but when it comes to thick plate (≥40mm) flaw detection, these methods have their own However, the detection sensitivity is also low. Phased Array Testing Technology (PAUT), as a new ultrasonic testing technology, has the characteristics of accuracy, intuition and portability, and has been widely used in foreign austenitic stainless steel products. Since there is no formal PAUT testing standard in China, it is necessary to make defect test panels for comparative tests of different nondestructive testing methods to determ...

Claims

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Application Information

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IPC IPC(8): B23K9/167B23K9/173B23K9/235B23K9/32B23K103/04
CPCB23K9/167B23K9/173B23K9/235B23K9/32B23K2103/05
Inventor 闵晓峰潘伍覃侯华东莫芝林魏三英
Owner WUHAN YIYE STEEL STRUCTURE
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