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A fast and non-destructive control method for cladding layer stress based on ultrasonic technology

An ultrasonic technology and cladding layer technology, which is applied in the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, coatings, and force measurements. It can solve problems such as inaccurate control of cladding layer stress and a large number of repeated experiments. Safe online The effectiveness of evaluation and regulation

Active Publication Date: 2021-10-15
JIANGSU UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above method controls the quality of the cladding layer to a certain extent, the entire control process requires a large number of repeated experiments, and is limited to different influences such as the manufacturing environment in each actual production. Only a small number of single tests cannot accurately control the cladding layer. cladding stress

Method used

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  • A fast and non-destructive control method for cladding layer stress based on ultrasonic technology
  • A fast and non-destructive control method for cladding layer stress based on ultrasonic technology
  • A fast and non-destructive control method for cladding layer stress based on ultrasonic technology

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Embodiment

[0039] A method for regulating and controlling the stress of a cladding layer based on ultrasonic technology quickly and nondestructively, comprising the following specific steps:

[0040] Taking carbon steel as the base material, that is, the bottom plate material, and preparing the plasma cladding layer on its surface as an example, the steps to quickly and non-destructively realize the stress regulation of the cladding layer by ultrasonic technology are described. The specific steps are as follows:

[0041] Step 1: Select Q235 steel with a thickness of 30mm as the base (base plate) material. The main process parameters of plasma cladding are: peak current 220A, base current 140A, frequency 60Hz, duty ratio 50%, cladding speed 0.2m / min, the wire feeding speed is 3.0m / min, and a plasma cladding layer with a thickness of 1.0mm is prepared. The plasma cladding layer is processed by machining to obtain a plasma cladding layer with a surface roughness Ra of 1.0 and a thickness o...

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Abstract

The invention discloses a method for quickly and non-destructively realizing stress regulation and control of a cladding layer based on ultrasonic technology, and belongs to the technical field of stress non-destructive evaluation and regulation. Based on the ultrasonic acoustoelastic theory, combined with the static load tensile calibration method, the ultrasonic acoustoelastic formula of the cladding layer under tension and compression is established, and the cladding layer samples in different compressive stress states are prepared by ultrasonic impact technology. , taking the ultrasonic time delay caused by stress as the "intermediate parameter", establishing the corresponding relationship between stress-ultrasonic impact coverage, and then realizing the non-destructive and rapid regulation of cladding layer stress. The technical methods adopted in the present invention are all non-destructive technologies, and provide technical support for realizing the non-destructive, fast, safe and on-line regulation of cladding layer stress.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic application, and in particular relates to a method for regulating and controlling the stress of a cladding layer based on ultrasonic technology quickly and without damage. Background technique [0002] The remanufacturing industry is an effective measure to develop a circular economy and promote energy conservation and emission reduction in my country. Therefore, vigorously developing the remanufacturing industry is very important to my country's economic development and technological transformation. Cladding technology is one of the commonly used technologies in remanufacturing, so how to ensure the quality of the cladding layer is extremely important to the quality assurance of remanufactured products. Relevant studies have shown that stress is one of the key factors affecting the quality of cladding. Therefore, it is very important to evaluate and control the stress of the cladding layer fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/25G01N29/07C23C24/10
CPCC23C24/103G01L1/255G01N29/07
Inventor 刘彬曾志豪谷家扬李瑞峰王凤江陈书锦
Owner JIANGSU UNIV OF SCI & TECH
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