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

Method for detecting silicon content in aluminum alloy

A detection method, the technology of aluminum alloy, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of long detection period, cumbersome detection process, high cost, etc., and achieve the effect of low cost, improved measurement range and simple operation

Inactive Publication Date: 2020-12-08
CRRC QIQIHAR ROLLING CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current detection method has an upper limit of 0.4% for the determination range of silicon content. When the silicon content in aluminum alloy exceeds 0.4%, gravimetric method or ICP method needs to be used, which leads to cumbersome detection process, long detection cycle and high cost.

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 detecting silicon content in aluminum alloy
  • Method for detecting silicon content in aluminum alloy
  • Method for detecting silicon content in aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Detection method:

[0035] (1) Weigh 0.5000g (accurate to 0.1mg) of the aluminum alloy sample, place it in a polytetrafluoroethylene beaker, add 20mL of sodium hydroxide solution with a concentration of 200g / L, and cover with a watch glass; , add 10 drops of hydrogen peroxide with ρ=1.10g / L dropwise, heat slowly and steam until the system becomes slurry, after cooling slightly, rinse the watch glass and the wall of the polyethylene beaker with water, add water to about 50mL, heat to near boiling, Let the soluble salts completely dissolve, and then cool slightly, add 35mL nitric acid solution (nitric acid 1+1), heat at about 70°C for about 2min (if MnO 2 To the precipitate, add a few drops of 5g / L sodium nitrite solution and boil until clear), cool; transfer the solution system into a 250mL measuring bottle, dilute with water, shake well, and constant volume to obtain the sample solution (mother solution);

[0036] Pipette 10mL of the above sample solution into a 100...

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 provides a method for detecting the content of silicon in an aluminum alloy, which comprises the following steps: (1) sequentially carrying out alkali dissolution and acidification treatment on an aluminum alloy sample to obtain a sample solution; treating the sample solution with ammonium molybdate to enable a silicon component in the sample solution to form a silicon molybdenum yellow complex, and adding ammonium ferrous sulfate into the silicon molybdenum yellow complex to reduce the silicon molybdenum yellow complex into a silicon molybdenum blue complex to obtain a to-be-detected solution; measuring the absorbance of the to-be-measured liquid at the wavelength of 650 + / -10nm; and (2) establishing a silicon content absorbance working curve by adopting the standard sample,and determining the silicon content in the aluminum alloy sample to be measured according to the working curve and the absorbance measurement result of the aluminum alloy sample to be measured. The detection method provided by the invention can accurately determine the silicon content of the aluminum alloy, and has a wide silicon content determination range.

Description

technical field [0001] The invention relates to the detection and analysis of silicon element, in particular to a detection method of silicon content in aluminum alloy. Background technique [0002] The strength of pure aluminum is low, so it is not suitable to be used to make structural parts that bear load. Adding an appropriate amount of alloying elements such as silicon, copper, magnesium, and manganese to pure aluminum can make aluminum alloys with higher strength. If it is strengthened by cold deformation Or heat treatment can further increase the strength of aluminum alloy. Compared with pure aluminum, aluminum alloy has better physical and mechanical properties such as easy processing, high durability, wide application range, and good decorative effect, so it has a wider range of applications in industry. [0003] As an alloying element in aluminum alloys, silicon has an important influence on the properties of aluminum alloys. For example, aluminum-silicon alloy h...

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 Applications(China)
IPC IPC(8): G01N21/31
CPCG01N21/31
Inventor 李岩王耀新王立辉
Owner CRRC QIQIHAR ROLLING CO LTD
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