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Electromagnetic ultrasonic probe for detecting ultrahigh-temperature casting and forging piece and online rapid detection method

An electromagnetic ultrasonic, casting and forging technology, applied in the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, use sound waves/ultrasonic waves/infrasonic waves for material analysis, and measurement devices, etc. It can solve problems such as the inability to achieve continuous online detection

Active Publication Date: 2020-07-07
NANCHANG HANGKONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The invention provides an electromagnetic ultrasonic probe for ultra-high temperature casting and forging detection and an online rapid detection method to solve the problem that the electromagnetic ultrasonic probe in the prior art cannot realize continuous online detection at ultra-high temperature

Method used

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  • Electromagnetic ultrasonic probe for detecting ultrahigh-temperature casting and forging piece and online rapid detection method
  • Electromagnetic ultrasonic probe for detecting ultrahigh-temperature casting and forging piece and online rapid detection method
  • Electromagnetic ultrasonic probe for detecting ultrahigh-temperature casting and forging piece and online rapid detection method

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Experimental program
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Embodiment 1

[0061] Such as Figure 1 to Figure 6 As shown, this embodiment provides an electromagnetic ultrasonic probe for ultra-high temperature casting and forging detection, including:

[0062] Probe housing (1, 2);

[0063] a permanent magnet group (7, 8) arranged in the cavity of the probe housing (1, 2);

[0064] The corundum sheet 11 arranged in the hollowed-out area at the bottom of the probe housing (1, 2);

[0065] The exciting / receiving coil 10 arranged on the top of the corundum sheet 11;

[0066] The hollow tube 5 passing through the probe shell, the permanent magnet group (7, 8), the exciting / receiving coil 10, and the corundum sheet 11 in sequence;

[0067] A number of water inlets 3 and a number of water outlets 4 communicating with the cavity of the probe housing (1, 2); and

[0068] A circulating cooling channel formed by the cavity between the probe shell (1, 2) and the permanent magnet group (7, 8), the exciting / receiving coil 10, and the hollow tube 5.

[0069] ...

Embodiment 2

[0082] Such as Figure 7 to Figure 10 As shown, this embodiment provides an online rapid detection method using the ultra-high temperature casting and forging to detect the electromagnetic ultrasonic probe, including:

[0083] Pass cooling water into the water inlet and the upper end of the hollow pipe, and control the flow;

[0084]A low-frequency, high-power Chirp linear frequency modulation pulse current is passed into the excitation / reception coil, thereby exciting a beam of sinusoidal sweeping transverse wave ultrasound, which propagates along the thickness direction of the tested sample;

[0085] The excitation / receiving coil receives the electrical signal converted from the ultrasonic echo. After amplification and filtering, the signal corresponding to the Chirp linear frequency modulation pulse current frequency segment is obtained, which is converted into a digital signal and transmitted to the PC. After pulse compression processing, a real-time A Scan to display the...

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Abstract

The invention discloses an electromagnetic ultrasonic probe for detecting an ultrahigh-temperature casting and forging piece and an online rapid detection method. The electromagnetic ultrasonic probecomprises a probe shell, a permanent magnet group arranged in a cavity of the probe shell, a corundum sheet arranged in a hollow area at the bottom of the probe shell, an exciting / receiving coil arranged above the corundum sheet, a hollow pipe sequentially penetrating through the probe shell, the permanent magnet group, the exciting / receiving coil and the corundum sheet, the plurality of water inlets and the plurality of water outlets communicated with the cavity of the probe shell, and a circulating cooling channel formed by a cavity between the probe shell and the permanent magnet group, theexciting / receiving coil and the hollow pipe. Continuous detection of the 1200 DEG C ultra-high temperature casting and forging piece can be realized, and the problems of weak ultrasonic echo, low signal-to-noise ratio and low spatial resolution caused by thick dendrites of a continuous casting billet and high attenuation of a solid-liquid interface in the 1200 DEG C ultra-high temperature castingand forging thickness detection process of an existing electromagnetic ultrasonic probe are solved.

Description

technical field [0001] The invention relates to the technical field of forging and casting detection, in particular to an electromagnetic ultrasonic probe for ultra-high temperature casting and forging detection and an online rapid detection method. Background technique [0002] With the smooth development of projects such as manned spaceflight, fifth-generation fighter jets, aircraft carriers, and high-speed railways, my country has put forward higher requirements for the manufacture of high-strength, high-performance, and high-reliability metal components. It can be seen that the market prospect of high-quality large-scale casting and forging parts is still very broad in the future. [0003] With the increase of casting and forging size, in the production process of high-temperature continuous casting slab, due to unreasonable control of carbon content in slab, process and operation factors such as molten steel level in mold, cooling conditions in mold, mold slag, and Equ...

Claims

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Application Information

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IPC IPC(8): G01N29/24G01N29/04G01N29/07
CPCG01N29/2412G01N29/043G01N29/07G01N2291/011G01N2291/0234G01N2291/02854G01N2291/0289G01N2291/0422
Inventor 石文泽陈巍巍徐毅卢超魏运飞罗更生程进杰唐琴黄祺凯彭健
Owner NANCHANG HANGKONG UNIVERSITY
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