Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Method for Evaluation of Substrate Surface Cleanliness Oriented to Structural Forming

A technology of substrate surface and evaluation method, applied in the direction of material analysis, material analysis through optical means, optical testing of flaws/defects, etc., can solve problems such as inapplicability

Active Publication Date: 2021-12-07
DALIAN UNIV OF TECH
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods play a good role in their respective fields of application, but the above evaluation systems are not suitable for the surface of the base material for construction and molding where various pollutants coexist.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method for Evaluation of Substrate Surface Cleanliness Oriented to Structural Forming
  • A Method for Evaluation of Substrate Surface Cleanliness Oriented to Structural Forming
  • A Method for Evaluation of Substrate Surface Cleanliness Oriented to Structural Forming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The steps of using the present invention to evaluate the surface cleanliness of the small sample after simply purging with an air gun after milling are as follows:

[0040] 1) Select different areas, use the X-ray energy spectrum analyzer to detect the composition of the surface of the small sample part by surface scanning, combined with the observation of the ultra-depth microscope, determine the types of surface pollutants according to the composition and appearance characteristics as oil, particles, swarf.

[0041]2) Starting from the healing performance of the substrate interface formed by the construction of the metal substrate, evaluate the degree of hindrance to the healing of the substrate interface by oil, particles, and chips, and determine the weight coefficient WC corresponding to the pollutants according to the degree of hindrance to the substrate interface healing i , where the weight coefficients of oil, particles, and chips are expressed as: WC 1 , WC ...

Embodiment 2

[0045] The steps of using the present invention to evaluate the surface cleanliness of the small sample after purging with an air gun and ultrasonic cleaning for 15min after milling are as follows:

[0046] 1) Select different areas, use the X-ray energy spectrum analyzer to detect the composition of the surface of the small sample part by surface scanning, combined with the observation of the super depth of field microscope, determine the type of surface pollutants according to the composition and appearance characteristics, only particle pollutants remain .

[0047] 2) Starting from the healing performance of the substrate interface formed by the construction of the metal substrate, evaluate the degree of hindrance to the healing of the substrate interface by oil, particles, and chips, and determine the weight coefficient WC corresponding to the pollutants according to the degree of hindrance to the substrate interface healing i , where the weight coefficients of oil, partic...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for evaluating the surface cleanliness of a metal base material for construction and forming. According to the test results, the weight coefficients corresponding to oil stains, particles, and chips are set, and different methods are used to detect the pollution scores of different pollutants. Value, by calculating the product sum of all pollution weight coefficients and pollution scores, so as to quantitatively characterize its surface cleanliness. The invention proposes an accurate and systematic evaluation method of surface cleanliness for metal substrate construction and forming. Determine the weight coefficient of pollutants based on the degree of adverse effects of different pollutants on the healing of the substrate interface; adopt different detection methods for different pollutants, and determine the pollution scores of different pollutants; the weight coefficient of each pollutant The product and the pollution score are summed to determine the pollution value, and a comparison relationship is established to finally determine the cleanliness level, thereby accurately and quantitatively evaluating the surface cleanliness of the substrate.

Description

technical field [0001] The invention belongs to the field of surface engineering, in particular to a method for evaluating the surface cleanliness of a metal base material for construction and forming. Background technique [0002] Large forgings are the core components of major equipment. At present, large forgings are mainly used in nuclear power plant support rings, nuclear power pressure vessel cylinders, and large-diameter pressure pipes. The metal substrate forming technology is a revolutionary technology proposed by the Institute of Metal Research, Chinese Academy of Sciences, which avoids the metallurgical defects caused by the size effect of the ingot in the past when preparing large forgings from large ingots. Metal substrate construction and forming technology takes small homogeneous casting billet as a unit, and after surface processing, cleaning billet assembly, vacuum packaging, high temperature deformation and other processes, an ultra-thick scale homogeneous ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/94
CPCG01N21/94G01N2021/945
Inventor 郭江康仁科魏兆成赵勇张林伟司立坤
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com