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A device and method for calculating the concentration of magnetic suspension in round steel magnetic particle flaw detection

A technology of magnetic particle flaw detection and calculation device, which is used in measurement devices, analysis of suspensions and porous materials, analysis of particle suspension, etc. Less maintenance, beneficial to subsequent operations

Active Publication Date: 2019-12-27
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual field applications, it is difficult to measure accurately due to problems such as small changes in current signals and large interference signals.

Method used

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  • A device and method for calculating the concentration of magnetic suspension in round steel magnetic particle flaw detection
  • A device and method for calculating the concentration of magnetic suspension in round steel magnetic particle flaw detection
  • A device and method for calculating the concentration of magnetic suspension in round steel magnetic particle flaw detection

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] see figure 2 , due to the limitation of production site conditions, it is necessary to adopt a non-contact method to measure the length and diameter of the round steel, so the round steel length sensor 31 and the round steel diameter sensor 21 in the present embodiment all select a stable and reliable 1 / 1.8 " The monochromatic industrial CCD camera of CCD, 25 frames / second.The image (video) signal (the first signal of round steel diameter and the first signal of round steel length) of industrial camera collection round steel length and diameter, needs to transmit in the present embodiment The data conversion and transmission module 41 performs signal conversion and transmission back-end equipment processing.

[0071] The on-site environment is relatively harsh, and the industrial camera needs to be dust-proof and cooled. Put the industrial camera in the protective cover. The protective cover uses an air-cooled protective sleeve. The protective cover is fixed at a suita...

Embodiment 2

[0082] see image 3 , under the less disturbed situation at the production site, the round steel length sensor 32 and the round steel diameter sensor 22 in the present embodiment all select 2 laser rangefinders to measure the first signal of the round steel diameter and the first signal of the round steel length, Its measured value is sent into the data conversion transmission module 42 of front-end of the scene, carries out relay, amplifies, converts into industrial ethernet signal (the second signal of round steel diameter and the second signal of round steel length) and sends into data processing module 52 (using industrial computer) processing, the magnetic suspension concentration value obtained after processing is sent to the display 62 in the control room for the operator to use.

[0083] The current measured round steel diameter D = 0.2m and length L = 6m, the concentration of the original magnetic suspension ρ 0 0.5g / l, coefficient α is 0.0061g / lm 2 , then the magne...

Embodiment 3

[0091] The measured value is manually input into the input terminal at the front end of the site, converted into an industrial Ethernet signal and sent to the industrial computer for processing, and the processed magnetic suspension concentration value is sent to the display in the control room for the operator to use.

[0092] The current measured round steel has a diameter of D = 0.15m and a length of L = 10m, the concentration of the original magnetic suspension ρ 0 0.9g / l, coefficient α is 0.00655g / lm 2 . Then the concentration value of the magnetic suspension in the current round steel magnetic particle flaw detection ρ 1 Calculated as follows:

[0093] (1) Calculate the surface area S of the current round steel

[0094] S=πDL=4.71m 2 ;

[0095] (2) Calculate the magnetic suspension concentration ρ currently consumed by the round steel s

[0096] ρ s =αS=0.030851g / l;

[0097] (3) Calculation of the magnetic suspension concentration value ρ in the current round st...

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Abstract

The invention relates to a device and method for calculating a magnetic suspension concentration in round steel magnetic powder flaw detection. The device comprises a round steel diameter sensor for measuring a round steel diameter first signal in real time, a round steel length sensor for measuring a round steel length first signal in real time, a data conversion and transmission module for respectively converting the round steel diameter first signal and the round steel length first signal into a round steel diameter second signal and a round steel length second signal in a long-distance industrial transmission form and transmitting the round steel diameter second signal and the round steel length second signal, a data processing module for converting the round steel diameter second signal and the round steel length second signal into a round steel diameter and round steel length for data calculation and calculating a current magnetic suspension concentration in round steel magneticpowder flaw detection according to the current concentration of the magnetic suspension consumed by round steel, and a display module for displaying the current magnetic suspension concentration in the round steel magnetic powder flaw detection. The device and method realize real-time calculation of the magnetic suspension concentration in the round steel magnetic powder flaw detection and real-time display of the calculation result and is conducive to the subsequent operation.

Description

technical field [0001] The invention relates to a round steel magnetic particle flaw detection technology, in particular to a computing device and method capable of real-time calculation of the magnetic suspension liquid concentration in the round steel magnetic particle flaw detection. Background technique [0002] In the magnetic particle flaw detection of round steel, it is required to use an ultraviolet lamp with a certain brightness to irradiate the workpiece coated with magnetic suspension, and then manually or equipment detects the fluorescent image to identify the round steel defect. In the process of round steel defect identification, it is necessary to ensure that the fluorescence image has a certain brightness. In actual flaw detection, with the continuous consumption of magnetic powder in the magnetic suspension, the brightness of the fluorescent image will be affected, thereby affecting the measurement effect of round steel defects. Therefore, the concentration...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/06
CPCG01N15/06G01N2015/0693
Inventor 邹堃胡继康申屠理锋陈溪强奚嘉奇陈林李劲刘祖表殷建新
Owner BAOSHAN IRON & STEEL CO LTD
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