Reference block for large-pipe-diameter plug-in type connecting pipe and barrel corner joint
A technology of fillet joints and comparison test blocks, which is applied in the direction of material analysis, instruments, and measuring devices using sound waves/ultrasonic waves/infrasonic waves, and can solve the problems of stainless steel plug-in fillet welds not being seen.
Pending Publication Date: 2021-02-02
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology
At present, in the national standards or industry standards, mature detection methods have been proposed for the ultrasonic inspection of butt welds of different materials, and corresponding detection and comparison test blocks have been designed. However, there are no relevant standards for stainless steel plug-in fillet welds. Test comparison test block
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Embodiment Construction
[0022] The present invention will be further described below in conjunction with the accompanying drawings.
[0023] Such as Figure 1 to Figure 6 As shown, the present invention provides a comparative test block for large pipe diameter plug-in joints and cylinder fillet joints, including a test block body, which includes wing plates welded together vertically and with an L-shaped cross-section 1 and web 2, there is a weld 3 filled with welding material between the flange 1 and the web 2, the vertical connection between the flange 1 and the web 2 is realized through the weld 3, and the two ends of the weld 3 are A horizontal hole 4 is provided. Wherein the hole depth of the horizontal hole 4 is 40mm.
[0024] Such as figure 1 and figure 2 As shown, the connection between the web 2 and the wing 1 is provided with a unilateral V-shaped groove. At one end of the connection between the web 2 and the wing 1, two horizontal holes 4 are opened at the groove fusion line of the w...
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The reference block comprises a reference block body, the reference block body comprises a wing plate (1) and a web plate (2), the wing plate (1) and the web plate (2) are vertically welded together,the cross section of the wing plate (1) and the cross section of the web plate (2) are in an L shape, and a welding line (3) formed by filling welding materials is arranged between the wing plate (1)and the web plate (2), the vertical connection between the wing plate (1) and the web (2) is realized through the welding line (3), and transverse holes (4) are formed in the two ends of the welding seam (3). The test block can be used as a reference block for ultrasonic detection. The vacancy of ultrasonic detection of a stainless steel plug-in connecting pipe and a cylinder (or end socket) anglejoint is made up.
Description
technical field [0001] The invention relates to a test block, in particular to a comparative test block used for a large-diameter plug-in connection pipe and a cylinder fillet joint. Background technique [0002] Ultrasonic testing is a non-destructive testing method, because of its accurate defect positioning, the detection rate of area-type defects is high; the sensitivity is high, and it can detect defects with small internal dimensions; and the detection cost is low, the speed is fast, and the equipment is light. , harmless to the human body and the environment, and more convenient to use on site, it has won the favor of the non-destructive testing industry and played an important role in the field of weld defect detection. At present, in the national standards or industry standards, mature detection methods have been proposed for the ultrasonic inspection of butt welds of different materials, and corresponding detection and comparison test blocks have been designed. How...
Claims
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IPC IPC(8): G01N29/30
CPCG01N29/30
Inventor 李旭王方方张喜张力苏润肖震
Owner XIAN THERMAL POWER RES INST CO LTD