Method for preparing metallographic specimen of spring-like parts

A technology for metallographic samples and parts, applied in the field of testing and testing, can solve problems such as backwater, sample contamination, and the operator's inability to inspect the microstructure normally, and achieve the effect of high surface quality and tight bonding

Active Publication Date: 2018-03-30
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
View PDF12 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the presence of microscopic pores in the hot-mounted sample, it is easy to cause the phenomenon of "water return" during the observation process after sample preparation, resulting in contamination of the sample, making it impossible for the operator to check

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
  • Method for preparing metallographic specimen of spring-like parts

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] In the following, the present invention will be further described in detail for a method for preparing metallographic samples of spring parts, and the specific steps are as follows:

[0021] (1) Cutting: If the maximum diameter of the part is more than 30mm, it must be sampled by wire cutting, and the sampling position is the part to be inspected.

[0022] (2) Clean the cut sample with alcohol and dry it with hot air.

[0023] (3) The cold mounting powder Versocit-2Power and the corresponding cold mounting liquid Versocit-2liquid are configured in a certain ratio (the configuration ratio is 3.5:1, mass ratio) to make them fluid. After the solution is configured, mount the spring parts. When mounting, the surface to be tested is placed below.

[0024] (4) After the cold-mounted sample is completely solidified, take out the sample and mark the sample accordingly.

[0025] (5) Grind off the burrs around the sample with 180# alumina sandpaper, and rough-grind the surface to be obser...

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 preparing a metallographic specimen of spring-like parts. The method comprises the following steps: inlaying the specimen, grinding, polishing and corroding, wherein the specimen is in a cold inlaid manner, and 1200# silicon carbide abrasive paper is adopted in the final accurate grinding process during grinding. The metallographic specimen of spring-like partsprepared by the method disclosed by the invention has high surface quality, a 'backwater' phenomenon is avoided, any microscopic pore does not exist, the parts are tightly combined with the inlay, the working efficiency can be indirectly improved, and the truth of the detection result is improved.

Description

technical field [0001] The invention belongs to the technical field of testing and testing, and in particular relates to a method for preparing metallographic samples of spring parts. Background technique [0002] Springs are mainly used in the accessory system of the engine. Due to their complex structure and high hardness, it is difficult to prepare metallographic samples. At present, the method of preparing metallographic samples of spring parts is mainly to prepare samples by hot-mounting epoxy resin, then grind and polish the samples, and finally corrode. Due to the presence of microscopic pores in the hot-mounted sample, it is easy to cause the phenomenon of "water return" during the observation process after sample preparation, resulting in contamination of the sample, making it impossible for the operator to check its microstructure normally; at the same time, due to the current preparation method The sample preparation process only involves grinding with 1000# sand...

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
IPC IPC(8): G01N1/36G01N1/28G01N1/32G01N1/30G01N1/34
CPCG01N1/286G01N1/30G01N1/32G01N1/34G01N1/36G01N2001/364
Inventor 熊勇陈昌达肖青云李巍
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap