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

Detection method of surface fluoride ions of non-ferrous metal material

A technology for non-ferrous metals and detection methods, which is applied in the measurement of color/spectral properties, analysis by chemical reaction of materials, and material analysis by observing the impact on chemical indicators, which can solve the problem of high residual detection line and residual amount. Insufficient, inaccurate residues, etc., to achieve the effect of low sample detection limit, stable absorbance, and large detection concentration range

Pending Publication Date: 2019-11-12
BAOJI UNIV OF ARTS & SCI +1
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flushing method originated from Germany. It is to flush the surface of the zirconium material with boiling water at 100°C, and collect the flushing liquid for F - Residue determination, this method obtains F - Residues are also inaccurate
Obtained F due to the above two methods - Insufficient residues, resulting in F - High residual detection line
In addition, there are no literature reports at home and abroad about F - Novel detection method for residues

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
  • Detection method of surface fluoride ions of non-ferrous metal material
  • Detection method of surface fluoride ions of non-ferrous metal material
  • Detection method of surface fluoride ions of non-ferrous metal material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Assembly of the sample processing device

[0036] The sample processing device is composed of three parts: steam generating device, heating device and fraction collecting device, which are sequentially connected and assembled, such as figure 1shown. The water vapor generating device is composed of a nitrogen cylinder (1), an electric furnace (2), an Erlenmeyer flask (3) and a connecting conduit. The Erlenmeyer flask is sealed with a perforated (2-hole) rubber stopper, and a rubber conduit is used to connect the nitrogen cylinder. The Erlenmeyer flask is located on the upper part of the electric furnace. The distilled water in the Erlenmeyer flask is heated by the electric furnace. The steam generated by the heated distilled water is transported by the nitrogen gas introduced into the Erlenmeyer flask to another glass tube connected with a rubber hole and then sent to the non-ferrous metal heating device. The non-ferrous metal heating device consists of a tub...

Embodiment 2

[0037] Example 2: Determination of fluoride ions on the surface of non-ferrous metals - determination of fraction collection time

[0038] Select a batch of qualified flaw detection, qualified chemical composition, and qualified mechanical properties test as a φ6.08×0.54mm×L zirconium tube, and use a CNC lathe to make 50 samples (pieces) of the selected zirconium tube with a length of 100mm, of which Fifteen (pieces) were used in this example, and the remaining samples were used in other examples described below. According to attached figure 1 After assembling the steam generator, non-ferrous metal heating device, and fraction collection device as shown, turn on the nitrogen gas at the end of the steam generator, and feed nitrogen into the device at a ventilation rate of 15mL / min. After ventilating for 10 minutes, turn on the electric furnace, adjust the steam generator until the deionized water contained in the device remains boiling, and adjust the nitrogen ventilation rate...

Embodiment 3

[0041] Example 3: Determination of fluoride ions on the surface of non-ferrous metals——determination of the heating temperature of non-ferrous metals

[0042] Get 18 (pieces) zirconium tubes that have not been processed for test samples in Examples 1 and 2, and according to the steps described in Example 1, the samples are respectively processed and fractions are collected. Similarly, the fraction collected before treatment at 1150°C was used as a matrix blank, and the above samples and the matrix blank were each added with a chromogen and then constant volume. Starting from the blank of the matrix as a reference at 540nm in the UV-Vis spectrophotometer, the above-mentioned 18 samples were tested within 5 to 90 minutes, and the test results are as follows: Figure 4 shown. From the test results, it can be found that F - After being combined with the chromogenic agent xylenol orange, the absorbance tends to increase with the increase of the storage time, and the absorbance sh...

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

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a detection method of surface fluoride ions of a non-ferrous metal material. According to the method, non-ferrous metal is heated through high temperature, the surface fluoride ions of the non-ferrous metal are enabled to be separated through surface hydrolyzation, a condensing method is combined to collect fluoride ion condensate, xylenol orange is used as a chromogenic reagent, and ultraviolet-visible spectrophotometry is used to determine the surface fluoride ion content of the non-ferrous metal. The detection method of the invention has the characteristics of obvious color development, stable absorbance, obvious working curve dominant-features, a low sample detection limit, a large detection concentration range and the like, can realize measurement and determination of a fluoride ion content of 0.5-50mg, and is suitable for use in detection of surface fluoride ions of non-ferrous materials such as titanium and zirconium.

Description

technical field [0001] The invention belongs to the technical field of material detection, and in particular relates to a method for detecting fluorine ions on the surface of nonferrous metal materials. Background technique [0002] Non-ferrous metals in a broad sense refer to all metals other than iron, manganese, and chromium, and non-ferrous alloys with a non-ferrous metal matrix greater than 50%. As typical representatives of non-ferrous metals, titanium and zirconium have the characteristics of high density, low mass and high specific strength, and are widely used in chemical equipment, aerospace, heavy equipment and other fields. This type of metal material is vacuum smelted from sponge titanium and sponge zirconium, and then extruded, forged, and rolled according to different use environments and size requirements to obtain ingots, billets, tubes, and rods with different specifications and sizes. , plates, strips and other forms of metal materials. The chemical comp...

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): G01N21/78G01N21/31G01N21/33
CPCG01N21/31G01N21/33G01N21/78
Inventor 苗磊胡登卫张珍姚明刚李立杰杨旦旦王妍王艳程花蕾任丽君赵立芳凡明锦
Owner BAOJI UNIV OF ARTS & SCI
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